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George Whipple
George Hoyt Whipple (August 28, 1878 – February 1, 1976) was an American physician, pathologist, biomedical researcher, and medical school educator and administrator. Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George Richards Minot and William Parry Murphy "for their discoveries concerning liver therapy in cases of anemia". This makes Whipple the first of several Nobel laureates affiliated with the University of Rochester. Whipple was born to Ashley Cooper Whipple and Frances Anna Hoyt in Ashland, New Hampshire. Ashley Cooper Whipple was a physician, and his father (George's paternal grandfather) was a physician and President of the New Hampshire Medical Society. Whipple's father died from pneumonia or typhoid fever when George was just shy of two years old. His maternal grandfather also died when Whipple was two years old, and his paternal grandfather died a year later. This left Whipple to be raised by his mother, Frances, and grandmother, Frances Moody Hoyt, who impressed on him the value of hard work and education. Whipple attended Andover prep school and began attending Yale University as an undergraduate in 1896, earning A.B. degree in 1900. During these years, he developed as an outdoorsman, an affinity he would hold lifelong. He wrote in his autobiography about growing up in a lake district, "I feel very fortunate that I grew up in the country...I became interested in wild life and camping, also hiking, snowshoeing, skating, bob sledding, canoeing, fishing, hunting—all this was an essential part of my life". He even credited his love for the outdoors as a contributor to his successes in work, study, and teaching. In the summers of prep school and undergrad, he worked at a drugstore and at Squam Lake and Lake Winnipesaukee in New Hampshire providing help and ferry services to the tourists and campers. Of his summer experiences, Whipple said, "I sometimes think I learned as much during the summer work periods as during the school terms." As an undergraduate, he became a member of Beta Theta Pi fraternity, and proved to be a prize-winning gymnast, oarsman, and an outstanding science student. His excellence in science was exemplified by his election to Sigma Xi honor society and graduation with senior honors. The interactions Whipple had with biochemists Russell Henry Chittenden and Lafayette Mendel during his senior year at Yale left an indelible mark on his life and career. In his autobiography, Whipple describes Mendel as "an unusual man who exerted a strong influence on me ... work with him was exciting and never to be forgotten". With a shortage of funds to finance further education, Whipple took a year off after graduating Yale. During this year, he worked at Dr. Holbrook Military School in Ossining, New York teaching mathematics and science, and serving as an athletic coach. In 1901, under the advice, persuasion, and guidance of his mother, Whipple attended medical school at Johns Hopkins School of Medicine. He received his M.D. degree in 1905. To gain experience and subsidize his medical school studies, Whipple applied for and was accepted to a teaching assistantship in John J. Abel's Department of Physiological Chemistry. Later, his performance in his first year anatomy course earned him a second-year appointment as a student instructor in anatomy. During this time, his interest in histology developed. Under the mentorship of William Welch, Eugene Opie, and William McCallum, Whipple was inspired to correlate clinical illness and disease, to the tissue findings discovered on autopsy. Together, McCallum and Welch conspired to offer Whipple a position as junior member of the pathology department with the hope it would lead to Whipple become a pediatric pathologist. Ultimately, Whipple accepted the position which shaped his career aspirations to become a pathologist. In 1905, Whipple joined the pathology department at Johns Hopkins School of Medicine as an assistant in pathology. He was promoted successively to Assistant, Instructor, Associate and Associate Professor in pathology until he left in 1914. During this time, he spent a year in Panama at Ancon Hospital as a pathologist. In Panama, he worked with Samuel Darling, a resident pathologist, and General Gorgas to gain experience in tropical diseases. This experience afforded him the opportunity to study massive hemolysis associated with blackwater fever. Before returning to Johns Hopkins School of Medicine after his time in Panama, Whipple traveled to Europe and spent time in the laboratories of Krehl and Morawitz in Heidelberg, where he learned about anemia in rabbits. In 1911, Whipple went to Vienna to study hepatic portal vein blood flow and its effects on hepatic functions in the dog with Hans Meyer. In 1914, at 34 years old, Whipple married Katherine Ball Waring of Charleston, South Carolina. They had two children. He was also appointed Professor of Research Medicine, and Director of the Hooper Foundation for Medical Research at the University of California San Francisco medical school. He was dean of that medical school in 1920 and 1921. In 1921, through the persistence of University of Rochester President Benjamin Rush Rhees, Whipple agreed to become a Professor and Chairman of Pathology, and the founding Dean of the yet-to-be-built medical school (URMC). Rhees was so determined to recruit Whipple, he personally flew to UC San Francisco to offer him the opportunity to build the medical school from the ground up. Whipple found this offer attractive because it would fulfil his passion to create a program which fostered an exchange between clinical and preclinical disciplines. His vision for the school included housing the medical school and hospital at the same site to facilitate this exchange. The first students entered URMC in 1925. Whipple categorically discriminated against African-American students during his time as dean, and would send a form letter to applicants rejecting their admission and requesting they apply elsewhere. In 1939, A commission of the New York state legislature found this practice to be in violation of New York's anti-discrimination laws, after which the URMC began to admit African-American medical students. In 1953, at 75 years old, Whipple retired from the Deanship, and retirement from the University would follow in 1955. He was remembered as a superb teacher. In his autobiography, A Dozen Doctors, Whipple wrote, "I would be remembered as a teacher". He spent his retirement years dabbling in pathology department and medical school activities at the University of Rochester, but returned to his outdoors-man roots, filling his time with pheasant hunting, salmon fishing on the Margaree River, and tarpon fishing off the coast in Florida. Whipple died in 1976 at the age of 97 and his ashes were scattered in Rochester's Mount Hope Cemetery. Though he was not related to Allen Whipple, who described the Whipple procedure and Whipple's triad, the two were lifelong friends. The Whipples also had a deep friendship with George Eastman, founder of Rochester-based Eastman Kodak. Over the course of his career, Whipple authored or co-authored more than 300 publications. Whipple's research interests during his career primarily included anemia and the physiology and pathology of the liver. But he also researched and made significant contributions to tuberculosis, pancreatitis, chloroform poisoning in animals, the metabolism of bile pigments and iron, the constituents of the bile, and the regeneration of plasma protein, protein metabolism, and the stroma of the red blood cells. One of his first publications described the role of the lungs, lymphatic system, and gastrointestinal tract in the spread of tubercle bacillus causing tuberculosis. Another one of his early publications described autopsy results from a patient with an accumulation of fatty acids in the walls of the small intestine and lymph nodes. He named this abnormality lipodystrophia intestinalis (intestinal lipodystrophy), and correctly pointed to the bacterial cause of the lipid deposits, resulting in the disease being named Whipple's disease. When Whipple first joined Johns Hopkins School of Medicine as an assistant, he worked under William H. Welch, focusing on the repair and regeneration of liver cells. His research in dogs demonstrated that liver cells had an almost unlimited ability to regenerate. Through his chloroform liver injury studies, Whipple demonstrated that the liver was the site of fibrinogen synthesis. His research elucidated the route by which bile pigments enter circulation and produce jaundice in various parts of the body. Later, he studied bile pigments and their production outside the liver by way of bile fistulas at the Hooper Foundation at UC San Francisco. His interests soon extended to understanding the production of hemoglobin to gain a better understand of how it is metabolized into bile pigments. Co-authored with Hooper, Whipple published 12 papers, from 1915–1917, reporting the following: At the University of Rochester, Whipple's research focus became studying the various factors in diets which contributed to recovery of long-term anemia, particularly in anemic dogs. Along with his research assistant, Frieda Robscheit-Robbins (formally Frieda Robbins), they co-authored 21 publications, from 1925–1930, reporting the following: Whipple and Robscheit-Robbins were regarded as having one of the "great creative partnerships in medicine". In his landmark studies, published as a series "Blood Regeneration in Severe Anemia" beginning in 1925, Whipple demonstrated that raw liver fed to anemic dogs was the most effective diet additive for reversing the anemia by boosting the production of red blood cells. He would go on to show that foods derived from animal tissue, and cooked apricots also had a positive effect of increasing red blood cells during anemia. Based on these data, Whipple associated the iron content in these dietary factors to the potency of red blood cell regeneration. This data led directly to successful liver treatment of pernicious anemia by George R. Minot and William P. Murphy, despite the main therapeutic mechanism being through B12 rather than iron. This was a remarkable discovery since previously, pernicious anemia was invariably fatal at a young age. For his contribution to this body of work, he was jointly awarded the Nobel Prize in physiology or medicine in 1934 along with Minot and Murphy. In 1937, Whipple collaborated with William B. Hawkins to determine the life-span of the red blood cell in dogs. Simultaneously, with the advent of radioactive iron, Whipple, Paul F. Hahn, and William F. Bale collaborated to study iron absorption and utilization. They demonstrated that iron absorption was highly regulated in the small intestine and was influenced by the amount of iron stores in the body. They also demonstrated that insignificant amounts of iron were normally excreted or lost in the urine, feces, or bile. During this time, Whipple also formulated his theory on "the dynamic equilibrium between blood and tissue proteins" based on earlier plasmapheresis experiments he had performed (in the early 1930s) which demonstrated the importance of dietary protein on production of plasma proteins. This formed the foundation of research into mammalian protein metabolism, and led Rudolf Schoenheimer to write The Dynamic State of the Body Constituents, marking the modern era of biochemistry and biology. Between 1939 and 1943 Leon L. Miller and Whipple collaborated to study the hepato-toxic effects of chloroform anesthesia on dogs. They found that dogs in a protein depleted state sustained lethal liver injury from within anesthesia fifteen minutes; but that feeding these depleted dogs a protein rich meal, particularly rich in L-methionine or L-cystine, prior to anesthesia was protective. This and other studies, led Whipple to the conclusion that S-containing amino acids are protective against liver against toxic agents. During World War II, Whipple tested combinations of dietary amino acids, administered, orally or parenterally, and their effects on plasma protein synthesis. He was able to characterize amino acid mixtures that could satisfy the metabolic requirements necessary to maintain weight, nitrogen balance, and plasma protein and hemoglobin regeneration in the dog. This would ultimately led to human clinical trials which demonstrated that these amino acid mixtures, along with enzymatic digest of casein, could sustain nourishment in patients who could not intake nutrients through the normal gastrointestinal route for extended periods. Intravenous nutrition, referred to as parenteral nutrition, is routinely used today. Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George R. Minot and William P. Murphy "for their discoveries concerning liver therapy in cases of anemia". In presenting the Nobel Prize, Professor I. Holmgren of the Nobel committee observed that "Of the three prize winners, it was Whipple who first occupied himself with the investigations for which the prize is now awarded. ... Whipple's experiments were planned exceedingly well, and carried out very accurately, and consequently their results can lay claim to absolute reliability. These investigations and results of Whipple's gave Minot and Murphy the idea that an experiment could be made to see whether favorable results might also be obtained in the case of pernicious anemia...by making use of the foods of the kind that Whipple had found to yield favorable results in his experiments regarding anemia from loss of blood." Whipple received honorary doctorates from several American and international Universities, including the Universities of Athens and Glasgow. In 1930, along with Minot, he received the Popular Science Monthly Gold Medal and Annual Award. In 1934, he was awarded the William Wood Gerhard Gold Medal of the Pathological Society of Philadelphia. He also was a member of the following organizations:
[ { "paragraph_id": 0, "text": "George Hoyt Whipple (August 28, 1878 – February 1, 1976) was an American physician, pathologist, biomedical researcher, and medical school educator and administrator. Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George Richards Minot and William Parry Murphy \"for their discoveries concerning liver therapy in cases of anemia\". This makes Whipple the first of several Nobel laureates affiliated with the University of Rochester.", "title": "" }, { "paragraph_id": 1, "text": "Whipple was born to Ashley Cooper Whipple and Frances Anna Hoyt in Ashland, New Hampshire. Ashley Cooper Whipple was a physician, and his father (George's paternal grandfather) was a physician and President of the New Hampshire Medical Society. Whipple's father died from pneumonia or typhoid fever when George was just shy of two years old. His maternal grandfather also died when Whipple was two years old, and his paternal grandfather died a year later. This left Whipple to be raised by his mother, Frances, and grandmother, Frances Moody Hoyt, who impressed on him the value of hard work and education.", "title": "Early life" }, { "paragraph_id": 2, "text": "Whipple attended Andover prep school and began attending Yale University as an undergraduate in 1896, earning A.B. degree in 1900. During these years, he developed as an outdoorsman, an affinity he would hold lifelong. He wrote in his autobiography about growing up in a lake district, \"I feel very fortunate that I grew up in the country...I became interested in wild life and camping, also hiking, snowshoeing, skating, bob sledding, canoeing, fishing, hunting—all this was an essential part of my life\". He even credited his love for the outdoors as a contributor to his successes in work, study, and teaching. In the summers of prep school and undergrad, he worked at a drugstore and at Squam Lake and Lake Winnipesaukee in New Hampshire providing help and ferry services to the tourists and campers. Of his summer experiences, Whipple said, \"I sometimes think I learned as much during the summer work periods as during the school terms.\"", "title": "Early life" }, { "paragraph_id": 3, "text": "As an undergraduate, he became a member of Beta Theta Pi fraternity, and proved to be a prize-winning gymnast, oarsman, and an outstanding science student. His excellence in science was exemplified by his election to Sigma Xi honor society and graduation with senior honors. The interactions Whipple had with biochemists Russell Henry Chittenden and Lafayette Mendel during his senior year at Yale left an indelible mark on his life and career. In his autobiography, Whipple describes Mendel as \"an unusual man who exerted a strong influence on me ... work with him was exciting and never to be forgotten\".", "title": "Education" }, { "paragraph_id": 4, "text": "With a shortage of funds to finance further education, Whipple took a year off after graduating Yale. During this year, he worked at Dr. Holbrook Military School in Ossining, New York teaching mathematics and science, and serving as an athletic coach.", "title": "Education" }, { "paragraph_id": 5, "text": "In 1901, under the advice, persuasion, and guidance of his mother, Whipple attended medical school at Johns Hopkins School of Medicine. He received his M.D. degree in 1905. To gain experience and subsidize his medical school studies, Whipple applied for and was accepted to a teaching assistantship in John J. Abel's Department of Physiological Chemistry. Later, his performance in his first year anatomy course earned him a second-year appointment as a student instructor in anatomy. During this time, his interest in histology developed. Under the mentorship of William Welch, Eugene Opie, and William McCallum, Whipple was inspired to correlate clinical illness and disease, to the tissue findings discovered on autopsy. Together, McCallum and Welch conspired to offer Whipple a position as junior member of the pathology department with the hope it would lead to Whipple become a pediatric pathologist. Ultimately, Whipple accepted the position which shaped his career aspirations to become a pathologist.", "title": "Education" }, { "paragraph_id": 6, "text": "In 1905, Whipple joined the pathology department at Johns Hopkins School of Medicine as an assistant in pathology. He was promoted successively to Assistant, Instructor, Associate and Associate Professor in pathology until he left in 1914. During this time, he spent a year in Panama at Ancon Hospital as a pathologist. In Panama, he worked with Samuel Darling, a resident pathologist, and General Gorgas to gain experience in tropical diseases. This experience afforded him the opportunity to study massive hemolysis associated with blackwater fever. Before returning to Johns Hopkins School of Medicine after his time in Panama, Whipple traveled to Europe and spent time in the laboratories of Krehl and Morawitz in Heidelberg, where he learned about anemia in rabbits. In 1911, Whipple went to Vienna to study hepatic portal vein blood flow and its effects on hepatic functions in the dog with Hans Meyer.", "title": "Career" }, { "paragraph_id": 7, "text": "In 1914, at 34 years old, Whipple married Katherine Ball Waring of Charleston, South Carolina. They had two children. He was also appointed Professor of Research Medicine, and Director of the Hooper Foundation for Medical Research at the University of California San Francisco medical school. He was dean of that medical school in 1920 and 1921.", "title": "Career" }, { "paragraph_id": 8, "text": "In 1921, through the persistence of University of Rochester President Benjamin Rush Rhees, Whipple agreed to become a Professor and Chairman of Pathology, and the founding Dean of the yet-to-be-built medical school (URMC). Rhees was so determined to recruit Whipple, he personally flew to UC San Francisco to offer him the opportunity to build the medical school from the ground up. Whipple found this offer attractive because it would fulfil his passion to create a program which fostered an exchange between clinical and preclinical disciplines. His vision for the school included housing the medical school and hospital at the same site to facilitate this exchange. The first students entered URMC in 1925.", "title": "Career" }, { "paragraph_id": 9, "text": "Whipple categorically discriminated against African-American students during his time as dean, and would send a form letter to applicants rejecting their admission and requesting they apply elsewhere. In 1939, A commission of the New York state legislature found this practice to be in violation of New York's anti-discrimination laws, after which the URMC began to admit African-American medical students.", "title": "Career" }, { "paragraph_id": 10, "text": "In 1953, at 75 years old, Whipple retired from the Deanship, and retirement from the University would follow in 1955. He was remembered as a superb teacher. In his autobiography, A Dozen Doctors, Whipple wrote, \"I would be remembered as a teacher\". He spent his retirement years dabbling in pathology department and medical school activities at the University of Rochester, but returned to his outdoors-man roots, filling his time with pheasant hunting, salmon fishing on the Margaree River, and tarpon fishing off the coast in Florida.", "title": "Retirement" }, { "paragraph_id": 11, "text": "Whipple died in 1976 at the age of 97 and his ashes were scattered in Rochester's Mount Hope Cemetery.", "title": "Retirement" }, { "paragraph_id": 12, "text": "Though he was not related to Allen Whipple, who described the Whipple procedure and Whipple's triad, the two were lifelong friends. The Whipples also had a deep friendship with George Eastman, founder of Rochester-based Eastman Kodak.", "title": "Retirement" }, { "paragraph_id": 13, "text": "Over the course of his career, Whipple authored or co-authored more than 300 publications.", "title": "Whipple's research" }, { "paragraph_id": 14, "text": "Whipple's research interests during his career primarily included anemia and the physiology and pathology of the liver. But he also researched and made significant contributions to tuberculosis, pancreatitis, chloroform poisoning in animals, the metabolism of bile pigments and iron, the constituents of the bile, and the regeneration of plasma protein, protein metabolism, and the stroma of the red blood cells.", "title": "Whipple's research" }, { "paragraph_id": 15, "text": "One of his first publications described the role of the lungs, lymphatic system, and gastrointestinal tract in the spread of tubercle bacillus causing tuberculosis. Another one of his early publications described autopsy results from a patient with an accumulation of fatty acids in the walls of the small intestine and lymph nodes. He named this abnormality lipodystrophia intestinalis (intestinal lipodystrophy), and correctly pointed to the bacterial cause of the lipid deposits, resulting in the disease being named Whipple's disease.", "title": "Whipple's research" }, { "paragraph_id": 16, "text": "When Whipple first joined Johns Hopkins School of Medicine as an assistant, he worked under William H. Welch, focusing on the repair and regeneration of liver cells. His research in dogs demonstrated that liver cells had an almost unlimited ability to regenerate. Through his chloroform liver injury studies, Whipple demonstrated that the liver was the site of fibrinogen synthesis. His research elucidated the route by which bile pigments enter circulation and produce jaundice in various parts of the body.", "title": "Whipple's research" }, { "paragraph_id": 17, "text": "Later, he studied bile pigments and their production outside the liver by way of bile fistulas at the Hooper Foundation at UC San Francisco. His interests soon extended to understanding the production of hemoglobin to gain a better understand of how it is metabolized into bile pigments. Co-authored with Hooper, Whipple published 12 papers, from 1915–1917, reporting the following:", "title": "Whipple's research" }, { "paragraph_id": 18, "text": "At the University of Rochester, Whipple's research focus became studying the various factors in diets which contributed to recovery of long-term anemia, particularly in anemic dogs. Along with his research assistant, Frieda Robscheit-Robbins (formally Frieda Robbins), they co-authored 21 publications, from 1925–1930, reporting the following:", "title": "Whipple's research" }, { "paragraph_id": 19, "text": "Whipple and Robscheit-Robbins were regarded as having one of the \"great creative partnerships in medicine\".", "title": "Whipple's research" }, { "paragraph_id": 20, "text": "In his landmark studies, published as a series \"Blood Regeneration in Severe Anemia\" beginning in 1925, Whipple demonstrated that raw liver fed to anemic dogs was the most effective diet additive for reversing the anemia by boosting the production of red blood cells. He would go on to show that foods derived from animal tissue, and cooked apricots also had a positive effect of increasing red blood cells during anemia. Based on these data, Whipple associated the iron content in these dietary factors to the potency of red blood cell regeneration. This data led directly to successful liver treatment of pernicious anemia by George R. Minot and William P. Murphy, despite the main therapeutic mechanism being through B12 rather than iron. This was a remarkable discovery since previously, pernicious anemia was invariably fatal at a young age. For his contribution to this body of work, he was jointly awarded the Nobel Prize in physiology or medicine in 1934 along with Minot and Murphy.", "title": "Whipple's research" }, { "paragraph_id": 21, "text": "In 1937, Whipple collaborated with William B. Hawkins to determine the life-span of the red blood cell in dogs. Simultaneously, with the advent of radioactive iron, Whipple, Paul F. Hahn, and William F. Bale collaborated to study iron absorption and utilization. They demonstrated that iron absorption was highly regulated in the small intestine and was influenced by the amount of iron stores in the body. They also demonstrated that insignificant amounts of iron were normally excreted or lost in the urine, feces, or bile. During this time, Whipple also formulated his theory on \"the dynamic equilibrium between blood and tissue proteins\" based on earlier plasmapheresis experiments he had performed (in the early 1930s) which demonstrated the importance of dietary protein on production of plasma proteins. This formed the foundation of research into mammalian protein metabolism, and led Rudolf Schoenheimer to write The Dynamic State of the Body Constituents, marking the modern era of biochemistry and biology.", "title": "Whipple's research" }, { "paragraph_id": 22, "text": "Between 1939 and 1943 Leon L. Miller and Whipple collaborated to study the hepato-toxic effects of chloroform anesthesia on dogs. They found that dogs in a protein depleted state sustained lethal liver injury from within anesthesia fifteen minutes; but that feeding these depleted dogs a protein rich meal, particularly rich in L-methionine or L-cystine, prior to anesthesia was protective. This and other studies, led Whipple to the conclusion that S-containing amino acids are protective against liver against toxic agents.", "title": "Whipple's research" }, { "paragraph_id": 23, "text": "During World War II, Whipple tested combinations of dietary amino acids, administered, orally or parenterally, and their effects on plasma protein synthesis. He was able to characterize amino acid mixtures that could satisfy the metabolic requirements necessary to maintain weight, nitrogen balance, and plasma protein and hemoglobin regeneration in the dog. This would ultimately led to human clinical trials which demonstrated that these amino acid mixtures, along with enzymatic digest of casein, could sustain nourishment in patients who could not intake nutrients through the normal gastrointestinal route for extended periods. Intravenous nutrition, referred to as parenteral nutrition, is routinely used today.", "title": "Whipple's research" }, { "paragraph_id": 24, "text": "Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George R. Minot and William P. Murphy \"for their discoveries concerning liver therapy in cases of anemia\".", "title": "Nobel Prize, honors and distinctions" }, { "paragraph_id": 25, "text": "In presenting the Nobel Prize, Professor I. Holmgren of the Nobel committee observed that \"Of the three prize winners, it was Whipple who first occupied himself with the investigations for which the prize is now awarded. ... Whipple's experiments were planned exceedingly well, and carried out very accurately, and consequently their results can lay claim to absolute reliability. These investigations and results of Whipple's gave Minot and Murphy the idea that an experiment could be made to see whether favorable results might also be obtained in the case of pernicious anemia...by making use of the foods of the kind that Whipple had found to yield favorable results in his experiments regarding anemia from loss of blood.\"", "title": "Nobel Prize, honors and distinctions" }, { "paragraph_id": 26, "text": "Whipple received honorary doctorates from several American and international Universities, including the Universities of Athens and Glasgow. In 1930, along with Minot, he received the Popular Science Monthly Gold Medal and Annual Award. In 1934, he was awarded the William Wood Gerhard Gold Medal of the Pathological Society of Philadelphia.", "title": "Nobel Prize, honors and distinctions" }, { "paragraph_id": 27, "text": "He also was a member of the following organizations:", "title": "Nobel Prize, honors and distinctions" } ]
George Hoyt Whipple was an American physician, pathologist, biomedical researcher, and medical school educator and administrator. Whipple shared the Nobel Prize in Physiology or Medicine in 1934 with George Richards Minot and William Parry Murphy "for their discoveries concerning liver therapy in cases of anemia". This makes Whipple the first of several Nobel laureates affiliated with the University of Rochester.
2001-05-14T22:33:51Z
2023-09-27T19:00:44Z
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https://en.wikipedia.org/wiki/George_Whipple
12,235
Göktürks
The Göktürks, Türks, Celestial Turks or Blue Turks (Old Turkic: 𐱅𐰇𐰼𐰜:𐰉𐰆𐰑𐰣, romanized: Türük Bodun; Chinese: 突厥; pinyin: Tūjué; Wade–Giles: T'u-chüeh) were a nomadic confederation of Turkic peoples in medieval Inner Asia. The Göktürks, under the leadership of Bumin Qaghan (d. 552) and his sons, succeeded the Rouran Khaganate as the main power in the region and established the First Turkic Khaganate, one of several nomadic dynasties that would shape the future geolocation, culture, and dominant beliefs of Turkic peoples. Strictly speaking, the common name "Göktürk" emerged from the misreading of the word "Kök" meaning Ashina, ruling clan of the historical ethnic group's endonym: which was attested as Old Turkic: 𐱅𐰇𐰼𐰜, romanized: Türük Old Turkic: 𐰚𐰇𐰜:𐱅𐰇𐰼𐰜, romanized: Kök Türük, or Old Turkic: 𐱅𐰇𐰼𐰚, romanized: Türk. It is generally accepted that the name Türk is ultimately derived from the Old-Turkic migration-term 𐱅𐰇𐰼𐰜 Türük/Törük, which means 'created, born'. They were known in Middle Chinese historical sources as the Tūjué (Chinese: 突厥; reconstructed in Middle Chinese as romanized: *dwət-kuɑt > tɦut-kyat). The ethnonym was also recorded in various other Middle Asian languages, such as Sogdian *Türkit ~ Türküt, tr'wkt, trwkt, turkt > trwkc, trukč; Khotanese Saka Ttūrka/Ttrūka, Ruanruan to̤ro̤x/türǖg and Old Tibetan Drugu. According to Chinese sources, Tūjué meant "combat helmet" (Chinese: 兜鍪; pinyin: Dōumóu; Wade–Giles: Tou-mou), reportedly because the shape of the Altai Mountains, where they lived, was similar to a combat helmet. Róna-Tas (1991) pointed to a Khotanese-Saka word, tturakä "lid", semantically stretchable to "helmet", as a possible source for this folk etymology, yet Golden thinks this connection requires more data. Göktürk means "Celestial Turk", or sometimes "Blue Turk" (i.e. because sky blue is associated with celestial realms). This is consistent with "the cult of heavenly ordained rule" which was a recurrent element of Altaic political culture and as such may have been imbibed by the Göktürks from their predecessors in Mongolia. The name of the ruling Ashina clan may derive from the Khotanese Saka term for "deep blue", āššɪna. According to the American Heritage Dictionary, the word Türk meant "strong" in Old Turkic; though Gerhard Doerfer supports this theory, Gerard Clauson points out that "the word Türk is never used in the generalized sense of 'strong'" and that the noun Türk originally meant "'the culminating point of maturity' (of a fruit, human being, etc.), but more often used as an [adjective] meaning (of a fruit) 'just fully ripe'; (of a human being) 'in the prime of life, young, and vigorous'". The name as used by the Göktürks only applied to themselves, the Göktürk khanates, and their subjects. The Göktürks did not consider other Turkic speaking groups such as the Uyghurs, Tiele, and Kyrgyz to be Türks. In the Orkhon inscriptions, the Toquz Oghuz and the Yenisei Kyrgyz are not referred to as Türks. Similarly, the Uyghurs called themselves Uyghurs and used Türk exclusively for the Göktürks, whom they portrayed as enemy aliens in their royal inscriptions. The Khazars may have kept the Göktürk tradition alive by claiming descent from the Ashina. When tribal leaders built their khanates, ruling over assorted tribes and tribal unions, the collected people identified themselves politically with the leadership. Turk became the designation for all subjects of the Turk empires. Nonetheless, subordinate tribes and tribal unions retained their original names, identities, and social structures. Memory of the Göktürks and the Ashina had faded by the turn of the millennium. The Karakhanids, Qocho Uyghurs, and Seljuks did not claim descent from the Göktürks. The Göktürk rulers originated from the Ashina clan, who were first attested to in 439. The Book of Sui reports that in that year, on October 18, the Tuoba ruler Emperor Taiwu of Northern Wei overthrew Juqu Mujian of the Northern Liang in eastern Gansu, whence 500 Ashina families fled northwest to the Rouran Khaganate in the vicinity of Gaochang. According to the Book of Zhou and History of the Northern Dynasties, the Ashina clan was a component of the Xiongnu confederation, specifically, the Northern Xiongnu tribes or southern Xiongnu "who settled along the northern Chinese frontier", according to Edwin G. Pulleyblank. However, this view is contested. Göktürks were also posited as having originated from an obscure Suo state (索國) (MC: *sâk) which was situated north of the Xiongnu and had been founded by the Sakas or Xianbei. According to the Book of Sui and the Tongdian, they were "mixed Hu (barbarians)" (雜胡) from Pingliang (平涼), now in Gansu, Northwest China. Pointing to the Ashina's association with the Northern tribes of the Xiongnu, some researchers (e.g. Duan, Lung, etc.) proposed that Göktürks belonged in particular to the Tiele confederation, likewise Xiongnu-associated, by ancestral lineage. However, Lee and Kuang (2017) state that Chinese sources do not describe the Ashina-led Göktürks as descending from the Dingling or belonging to the Tiele confederation. Chinese sources linked the Hu on their northern borders to the Xiongnu just as Graeco-Roman historiographers called the Pannonian Avars, Huns and Hungarians “Scythians". Such archaizing was a common literary topos, implying similar geographic origins and nomadic lifestyle but not direct filiation. As part of the heterogeneous Rouran Khaganate, the Turks lived for generations north of the Altai Mountains, where they 'engaged in metal working for the Rouran'. According to Denis Sinor, the rise to power of the Ashina clan represented an 'internal revolution' in the Rouran Khaganate rather than an external conquest. According to Charles Holcombe, the early Turk population was rather heterogeneous and many of the names of Turk rulers, including the two founding members, are not even Turkic. This is supported by evidence from the Orkhon inscriptions, which include several non-Turkic lexemes, possibly representing Uralic or Yeniseian words. Peter Benjamin Golden points out that the khaghans of the Turkic Khaganate, the Ashina, who were of an undetermined ethnic origin, adopted Iranian and Tokharian (or non-Altaic) titles. German Turkologist W.-E. Scharlipp points out that many common terms in Turkic are Iranian in origin. Whatever language the Ashina may have spoken originally, they and those they ruled would all speak Turkic, in a variety of dialects, and create, in a broadly defined sense, a common culture. The Göktürks reached their peak in the late 6th century and began to invade the Sui dynasty of China. However, the war ended due to the division of Turkic nobles and their civil war for the throne of Khagan. With the support of Emperor Wen of Sui, Yami Qaghan won the competition. However, the Göktürk empire was divided to Eastern and Western empires. Weakened by the civil war, Yami Qaghan declared allegiance to the Sui dynasty. When Sui began to decline, Shibi Khagan began to assault its territory and even surrounded Emperor Yang of Sui in Siege of Yanmen (615 AD) with 100,000 cavalry troops. After the collapse of the Sui dynasty, the Göktürks intervened in the ensuing Chinese civil wars, providing support to the northeastern rebel Liu Heita against the rising Tang in 622 and 623. Liu enjoyed a long string of success but was finally routed by Li Shimin and other Tang generals and executed. The Tang dynasty was then established. Although the Göktürk Khaganate once provided support to the Tang dynasty in the early period of the civil war during the collapse of the Sui dynasty, the conflicts between the Göktürks and Tang finally broke out when Tang was gradually reunifying China proper. The Göktürks began to attack and raid the northern border of the Tang Empire and once marched their main force of 100,000 soldiers to Chang'an, the capital of Tang. The emperor Taizong of the Tang, in spite of the limited resources at his disposal, managed to turn him back. Later, Taizong sent his troops to Mongolia and defeated the main force of Göktürk army in Battle of Yinshan four years later and captured Illig Qaghan in 630 AD. With the submission of the Turkic tribes, the Tang conquered the Mongolian Plateau.From then on, the Eastern Turks were subjugated to China. After a vigorous court debate, Emperor Taizong decided to pardon the Göktürk nobles and offered them positions as imperial guards. However, the proposition was ended by a plan for the assassination of the emperor. On May 19, 639 Ashina Jiesheshuai and his tribesmen directly assaulted Emperor Taizong of Tang at Jiucheng Palace (九成宮, in present-day Linyou County, Baoji, Shaanxi). However, they did not succeed and fled to the north, but were caught by pursuers near the Wei River and were killed. Ashina Hexiangu was exiled to Lingbiao. After the unsuccessful raid of Ashina Jiesheshuai, on August 13, 639 Taizong installed Qilibi Khan and ordered the settled Turkic people to follow him north of the Yellow River to settle between the Great Wall of China and the Gobi Desert. However, many Göktürk generals still remained loyal in service to the Tang Empire. In 679, Ashide Wenfu and Ashide Fengzhi, who were Turkic leaders of the Chanyu Protectorate (單于大都護府), declared Ashina Nishufu as qaghan and revolted against the Tang dynasty. In 680, Pei Xingjian defeated Ashina Nishufu and his army. Ashina Nishufu was killed by his men. Ashide Wenfu made Ashina Funian a qaghan and again revolted against the Tang dynasty. Ashide Wenfu and Ashina Funian surrendered to Pei Xingjian. On December 5, 681, 54 Göktürks, including Ashide Wenfu and Ashina Funian, were publicly executed in the Eastern Market of Chang'an. In 682, Ilterish Qaghan and Tonyukuk revolted and occupied Heisha Castle (northwest of present-day Hohhot, Inner Mongolia) with the remnants of Ashina Funian's men. The restored Göktürk Khaganate intervened in the war between Tang and Khitan tribes. However, after the death of Bilge Qaghan, the Göktürks could no longer subjugate other Turk tribes in the grasslands. In 744, allied with the Tang dynasty, the Uyghur Khaganate defeated the last Göktürk Khaganate and controlled the Mongolian Plateau. The Ashina tribe of the Göktürks ruled the First Turkic Khaganate, which then split into the Eastern Turkic Khaganate and the Western Turkic Khaganate, and later the Second Turkic Khaganate, controlling much of Central Asia and the Mongolian Plateau between 552 and 745. The rulers were named "Khagan" (Qaghan). Their religion was polytheistic. The great god was the sky, Tengri, who dispensed the viaticum for the journey of life (qut) and fortune (ulug) and watched over the cosmic order and the political and social order. People prayed to him and sacrificed to him, preferably with a white horse. The ruler, who came from him and derived his authority from him, was raised on a felt saddle to meet him. Tengri issued decrees, brought pressure to bear on human beings, and enforced capital punishment, often by striking the offender with lightning. The many secondary powers – sometimes named deities, sometimes spirits or simply said to be sacred, and almost always associated with Tengri – were the Earth, the Mountain, Water, the Springs, and the Rivers; the master/possessors of all objects, particularly of the land and the waters of the nation; trees, cosmic axes, and sources of life; fire, the symbol of the family and alterego of the shaman; the stars, particularly the sun and the moon, the Pleiades, and Venus, whose image changes over time; Umay, a mother goddess who is none other than the placenta; the threshold and the doorjamb; personifications of Time, the Road, Desire, etc.; heroes and ancestors embodied in the banner, in tablets with inscriptions, and in idols; and spirits wandering or fixed in Penates or in all kinds of holy objects. These and other powers have an uneven force which increases as objects accumulate, as trees form a forest, stones form a cairn, arrows form a quiver, and drops of water form a lake. A genetic study published in Nature in May 2018 examined the remains of four elite Türk soldiers buried between ca. 300 AD and 700 AD. 50% of the samples of Y-DNA belonged to the West Eurasian haplogroup R1, while the other 50% belonged to East Eurasian haplogroups Q and O. The extracted samples of mtDNA belonged mainly to East Eurasian haplogroups C4b1, A14 and A15c, while one specimen carried the West Eurasian haplogroup H2a. The authors suggested that central Asian nomadic populations may have been Turkicized by an East Asian minority elite, resulting in a small but detectable increase in East Asian ancestry. However, these authors also found that Türkic period individuals were extremely genetically diverse, with some individuals being of near complete West Eurasian descent. To explain this diversity of ancestry, they propose that there were also incoming West Eurasians moving eastward on the Eurasian steppe during the Türkic period, resulting in admixture. A 2020 study analyzed genetic data from 7 early medieval Türk skeletal remains from Eastern Turkic Khaganate burial sites in Mongolia. The authors described the Türk samples as highly diverse, carrying on average 40% West Eurasian, and 60% East Eurasian ancestry. West Eurasian ancestry in the Türks combined Sarmatian-related and BMAC ancestry, while the East Eurasian ancestry was related to Ancient Northeast Asians. The authors also observed that the Western Steppe Herder ancestry in the Türks was largely inherited from male ancestors, which also corresponds with the marked increase of paternal haplogroups such as R and J during the Türkic period in Mongolia. Admixture between East and West Eurasian ancestors of the Türkic samples was dated to 500 CE, or roughly 8 generations prior. Three of the Türkic-affiliated males carried the paternal haplogroups J2a and J1a, two carried haplogroup C-F3830, and one carried R1a-Z93. The analyzed maternal haplogroups were identified as D4, D2, B4, C4, H1 and U7. A 2023 study published in the Journal of Systematics and Evolution analyzed the DNA of Empress Ashina (551–582), a royal Göktürk and immediate descendant of the first Khagans, whose remains were recovered from a mausoleum in Xianyang, China. The authors determined that Empress Ashina belonged to the North-East Asian mtDNA haplogroup F1d. Approximately 96-98% of her autosomal ancestry was of Ancient Northeast Asian origin, while roughly 2-4% was of West Eurasian origin, indicating ancient admixture, and no Chinese ("Yellow River") admixture. The results are consistent with a North-East Asian origin of the royal Ashina family and the Göktürk Khaganate. However, the Ashina did not show close genetic affinity with central-steppe Türks and early medieval Türks, who exhibit a high (but variable) degree of West Eurasian ancestry, which indicates that there was genetic sub-structure within the Türkic empire. For example, the ancestry of early medieval Turks was derived from Ancient Northeast Asians for about 62% of their genome, while the remaining 38% was derived from West Eurasians (BMAC and Afanasievo), with the admixture occurring around the year 500 CE. The Ashina was found to share genetic affinities to post-Iron Age Tungusic and Mongolic pastoralists, and was genetically closer to East Asians, while having heterogeneous relationships towards various Turkic-speaking groups in central Asia, suggesting genetic heterogeneity and multiple sources of origin for the population of the Turkic empire. This shows that the Ashina lineage had a dominating contribution on Mongolic and Tungusic speakers but limited contribution on Turkic-speaking populations. According to the authors, these findings "once again validates a cultural diffusion model over a demic diffusion model for the spread of Turkic languages" and refutes "the western Eurasian origin and multiple origin hypotheses" in favor of an East Asian origin for the royal Ashina family.
[ { "paragraph_id": 0, "text": "The Göktürks, Türks, Celestial Turks or Blue Turks (Old Turkic: 𐱅𐰇𐰼𐰜:𐰉𐰆𐰑𐰣, romanized: Türük Bodun; Chinese: 突厥; pinyin: Tūjué; Wade–Giles: T'u-chüeh) were a nomadic confederation of Turkic peoples in medieval Inner Asia. The Göktürks, under the leadership of Bumin Qaghan (d. 552) and his sons, succeeded the Rouran Khaganate as the main power in the region and established the First Turkic Khaganate, one of several nomadic dynasties that would shape the future geolocation, culture, and dominant beliefs of Turkic peoples.", "title": "" }, { "paragraph_id": 1, "text": "Strictly speaking, the common name \"Göktürk\" emerged from the misreading of the word \"Kök\" meaning Ashina, ruling clan of the historical ethnic group's endonym: which was attested as Old Turkic: 𐱅𐰇𐰼𐰜, romanized: Türük Old Turkic: 𐰚𐰇𐰜:𐱅𐰇𐰼𐰜, romanized: Kök Türük, or Old Turkic: 𐱅𐰇𐰼𐰚, romanized: Türk. It is generally accepted that the name Türk is ultimately derived from the Old-Turkic migration-term 𐱅𐰇𐰼𐰜 Türük/Törük, which means 'created, born'.", "title": "Etymology" }, { "paragraph_id": 2, "text": "They were known in Middle Chinese historical sources as the Tūjué (Chinese: 突厥; reconstructed in Middle Chinese as romanized: *dwət-kuɑt > tɦut-kyat).", "title": "Etymology" }, { "paragraph_id": 3, "text": "The ethnonym was also recorded in various other Middle Asian languages, such as Sogdian *Türkit ~ Türküt, tr'wkt, trwkt, turkt > trwkc, trukč; Khotanese Saka Ttūrka/Ttrūka, Ruanruan to̤ro̤x/türǖg and Old Tibetan Drugu.", "title": "Etymology" }, { "paragraph_id": 4, "text": "According to Chinese sources, Tūjué meant \"combat helmet\" (Chinese: 兜鍪; pinyin: Dōumóu; Wade–Giles: Tou-mou), reportedly because the shape of the Altai Mountains, where they lived, was similar to a combat helmet. Róna-Tas (1991) pointed to a Khotanese-Saka word, tturakä \"lid\", semantically stretchable to \"helmet\", as a possible source for this folk etymology, yet Golden thinks this connection requires more data.", "title": "Etymology" }, { "paragraph_id": 5, "text": "Göktürk means \"Celestial Turk\", or sometimes \"Blue Turk\" (i.e. because sky blue is associated with celestial realms). This is consistent with \"the cult of heavenly ordained rule\" which was a recurrent element of Altaic political culture and as such may have been imbibed by the Göktürks from their predecessors in Mongolia. The name of the ruling Ashina clan may derive from the Khotanese Saka term for \"deep blue\", āššɪna.", "title": "Etymology" }, { "paragraph_id": 6, "text": "According to the American Heritage Dictionary, the word Türk meant \"strong\" in Old Turkic; though Gerhard Doerfer supports this theory, Gerard Clauson points out that \"the word Türk is never used in the generalized sense of 'strong'\" and that the noun Türk originally meant \"'the culminating point of maturity' (of a fruit, human being, etc.), but more often used as an [adjective] meaning (of a fruit) 'just fully ripe'; (of a human being) 'in the prime of life, young, and vigorous'\".", "title": "Etymology" }, { "paragraph_id": 7, "text": "The name as used by the Göktürks only applied to themselves, the Göktürk khanates, and their subjects. The Göktürks did not consider other Turkic speaking groups such as the Uyghurs, Tiele, and Kyrgyz to be Türks. In the Orkhon inscriptions, the Toquz Oghuz and the Yenisei Kyrgyz are not referred to as Türks. Similarly, the Uyghurs called themselves Uyghurs and used Türk exclusively for the Göktürks, whom they portrayed as enemy aliens in their royal inscriptions. The Khazars may have kept the Göktürk tradition alive by claiming descent from the Ashina. When tribal leaders built their khanates, ruling over assorted tribes and tribal unions, the collected people identified themselves politically with the leadership. Turk became the designation for all subjects of the Turk empires. Nonetheless, subordinate tribes and tribal unions retained their original names, identities, and social structures. Memory of the Göktürks and the Ashina had faded by the turn of the millennium. The Karakhanids, Qocho Uyghurs, and Seljuks did not claim descent from the Göktürks.", "title": "Etymology" }, { "paragraph_id": 8, "text": "The Göktürk rulers originated from the Ashina clan, who were first attested to in 439. The Book of Sui reports that in that year, on October 18, the Tuoba ruler Emperor Taiwu of Northern Wei overthrew Juqu Mujian of the Northern Liang in eastern Gansu, whence 500 Ashina families fled northwest to the Rouran Khaganate in the vicinity of Gaochang.", "title": "History" }, { "paragraph_id": 9, "text": "According to the Book of Zhou and History of the Northern Dynasties, the Ashina clan was a component of the Xiongnu confederation, specifically, the Northern Xiongnu tribes or southern Xiongnu \"who settled along the northern Chinese frontier\", according to Edwin G. Pulleyblank. However, this view is contested. Göktürks were also posited as having originated from an obscure Suo state (索國) (MC: *sâk) which was situated north of the Xiongnu and had been founded by the Sakas or Xianbei. According to the Book of Sui and the Tongdian, they were \"mixed Hu (barbarians)\" (雜胡) from Pingliang (平涼), now in Gansu, Northwest China. Pointing to the Ashina's association with the Northern tribes of the Xiongnu, some researchers (e.g. Duan, Lung, etc.) proposed that Göktürks belonged in particular to the Tiele confederation, likewise Xiongnu-associated, by ancestral lineage. However, Lee and Kuang (2017) state that Chinese sources do not describe the Ashina-led Göktürks as descending from the Dingling or belonging to the Tiele confederation.", "title": "History" }, { "paragraph_id": 10, "text": "Chinese sources linked the Hu on their northern borders to the Xiongnu just as Graeco-Roman historiographers called the Pannonian Avars, Huns and Hungarians “Scythians\". Such archaizing was a common literary topos, implying similar geographic origins and nomadic lifestyle but not direct filiation.", "title": "History" }, { "paragraph_id": 11, "text": "As part of the heterogeneous Rouran Khaganate, the Turks lived for generations north of the Altai Mountains, where they 'engaged in metal working for the Rouran'. According to Denis Sinor, the rise to power of the Ashina clan represented an 'internal revolution' in the Rouran Khaganate rather than an external conquest.", "title": "History" }, { "paragraph_id": 12, "text": "According to Charles Holcombe, the early Turk population was rather heterogeneous and many of the names of Turk rulers, including the two founding members, are not even Turkic. This is supported by evidence from the Orkhon inscriptions, which include several non-Turkic lexemes, possibly representing Uralic or Yeniseian words. Peter Benjamin Golden points out that the khaghans of the Turkic Khaganate, the Ashina, who were of an undetermined ethnic origin, adopted Iranian and Tokharian (or non-Altaic) titles. German Turkologist W.-E. Scharlipp points out that many common terms in Turkic are Iranian in origin. Whatever language the Ashina may have spoken originally, they and those they ruled would all speak Turkic, in a variety of dialects, and create, in a broadly defined sense, a common culture.", "title": "History" }, { "paragraph_id": 13, "text": "The Göktürks reached their peak in the late 6th century and began to invade the Sui dynasty of China. However, the war ended due to the division of Turkic nobles and their civil war for the throne of Khagan. With the support of Emperor Wen of Sui, Yami Qaghan won the competition. However, the Göktürk empire was divided to Eastern and Western empires. Weakened by the civil war, Yami Qaghan declared allegiance to the Sui dynasty. When Sui began to decline, Shibi Khagan began to assault its territory and even surrounded Emperor Yang of Sui in Siege of Yanmen (615 AD) with 100,000 cavalry troops. After the collapse of the Sui dynasty, the Göktürks intervened in the ensuing Chinese civil wars, providing support to the northeastern rebel Liu Heita against the rising Tang in 622 and 623. Liu enjoyed a long string of success but was finally routed by Li Shimin and other Tang generals and executed. The Tang dynasty was then established.", "title": "History" }, { "paragraph_id": 14, "text": "Although the Göktürk Khaganate once provided support to the Tang dynasty in the early period of the civil war during the collapse of the Sui dynasty, the conflicts between the Göktürks and Tang finally broke out when Tang was gradually reunifying China proper. The Göktürks began to attack and raid the northern border of the Tang Empire and once marched their main force of 100,000 soldiers to Chang'an, the capital of Tang. The emperor Taizong of the Tang, in spite of the limited resources at his disposal, managed to turn him back. Later, Taizong sent his troops to Mongolia and defeated the main force of Göktürk army in Battle of Yinshan four years later and captured Illig Qaghan in 630 AD. With the submission of the Turkic tribes, the Tang conquered the Mongolian Plateau.From then on, the Eastern Turks were subjugated to China.", "title": "History" }, { "paragraph_id": 15, "text": "After a vigorous court debate, Emperor Taizong decided to pardon the Göktürk nobles and offered them positions as imperial guards. However, the proposition was ended by a plan for the assassination of the emperor. On May 19, 639 Ashina Jiesheshuai and his tribesmen directly assaulted Emperor Taizong of Tang at Jiucheng Palace (九成宮, in present-day Linyou County, Baoji, Shaanxi). However, they did not succeed and fled to the north, but were caught by pursuers near the Wei River and were killed. Ashina Hexiangu was exiled to Lingbiao. After the unsuccessful raid of Ashina Jiesheshuai, on August 13, 639 Taizong installed Qilibi Khan and ordered the settled Turkic people to follow him north of the Yellow River to settle between the Great Wall of China and the Gobi Desert. However, many Göktürk generals still remained loyal in service to the Tang Empire.", "title": "History" }, { "paragraph_id": 16, "text": "In 679, Ashide Wenfu and Ashide Fengzhi, who were Turkic leaders of the Chanyu Protectorate (單于大都護府), declared Ashina Nishufu as qaghan and revolted against the Tang dynasty. In 680, Pei Xingjian defeated Ashina Nishufu and his army. Ashina Nishufu was killed by his men. Ashide Wenfu made Ashina Funian a qaghan and again revolted against the Tang dynasty. Ashide Wenfu and Ashina Funian surrendered to Pei Xingjian. On December 5, 681, 54 Göktürks, including Ashide Wenfu and Ashina Funian, were publicly executed in the Eastern Market of Chang'an. In 682, Ilterish Qaghan and Tonyukuk revolted and occupied Heisha Castle (northwest of present-day Hohhot, Inner Mongolia) with the remnants of Ashina Funian's men. The restored Göktürk Khaganate intervened in the war between Tang and Khitan tribes. However, after the death of Bilge Qaghan, the Göktürks could no longer subjugate other Turk tribes in the grasslands. In 744, allied with the Tang dynasty, the Uyghur Khaganate defeated the last Göktürk Khaganate and controlled the Mongolian Plateau.", "title": "History" }, { "paragraph_id": 17, "text": "The Ashina tribe of the Göktürks ruled the First Turkic Khaganate, which then split into the Eastern Turkic Khaganate and the Western Turkic Khaganate, and later the Second Turkic Khaganate, controlling much of Central Asia and the Mongolian Plateau between 552 and 745. The rulers were named \"Khagan\" (Qaghan).", "title": "Rulers" }, { "paragraph_id": 18, "text": "Their religion was polytheistic. The great god was the sky, Tengri, who dispensed the viaticum for the journey of life (qut) and fortune (ulug) and watched over the cosmic order and the political and social order. People prayed to him and sacrificed to him, preferably with a white horse. The ruler, who came from him and derived his authority from him, was raised on a felt saddle to meet him. Tengri issued decrees, brought pressure to bear on human beings, and enforced capital punishment, often by striking the offender with lightning. The many secondary powers – sometimes named deities, sometimes spirits or simply said to be sacred, and almost always associated with Tengri – were the Earth, the Mountain, Water, the Springs, and the Rivers; the master/possessors of all objects, particularly of the land and the waters of the nation; trees, cosmic axes, and sources of life; fire, the symbol of the family and alterego of the shaman; the stars, particularly the sun and the moon, the Pleiades, and Venus, whose image changes over time; Umay, a mother goddess who is none other than the placenta; the threshold and the doorjamb; personifications of Time, the Road, Desire, etc.; heroes and ancestors embodied in the banner, in tablets with inscriptions, and in idols; and spirits wandering or fixed in Penates or in all kinds of holy objects. These and other powers have an uneven force which increases as objects accumulate, as trees form a forest, stones form a cairn, arrows form a quiver, and drops of water form a lake.", "title": "Religion" }, { "paragraph_id": 19, "text": "A genetic study published in Nature in May 2018 examined the remains of four elite Türk soldiers buried between ca. 300 AD and 700 AD. 50% of the samples of Y-DNA belonged to the West Eurasian haplogroup R1, while the other 50% belonged to East Eurasian haplogroups Q and O. The extracted samples of mtDNA belonged mainly to East Eurasian haplogroups C4b1, A14 and A15c, while one specimen carried the West Eurasian haplogroup H2a. The authors suggested that central Asian nomadic populations may have been Turkicized by an East Asian minority elite, resulting in a small but detectable increase in East Asian ancestry. However, these authors also found that Türkic period individuals were extremely genetically diverse, with some individuals being of near complete West Eurasian descent. To explain this diversity of ancestry, they propose that there were also incoming West Eurasians moving eastward on the Eurasian steppe during the Türkic period, resulting in admixture.", "title": "Genetics" }, { "paragraph_id": 20, "text": "A 2020 study analyzed genetic data from 7 early medieval Türk skeletal remains from Eastern Turkic Khaganate burial sites in Mongolia. The authors described the Türk samples as highly diverse, carrying on average 40% West Eurasian, and 60% East Eurasian ancestry. West Eurasian ancestry in the Türks combined Sarmatian-related and BMAC ancestry, while the East Eurasian ancestry was related to Ancient Northeast Asians. The authors also observed that the Western Steppe Herder ancestry in the Türks was largely inherited from male ancestors, which also corresponds with the marked increase of paternal haplogroups such as R and J during the Türkic period in Mongolia. Admixture between East and West Eurasian ancestors of the Türkic samples was dated to 500 CE, or roughly 8 generations prior. Three of the Türkic-affiliated males carried the paternal haplogroups J2a and J1a, two carried haplogroup C-F3830, and one carried R1a-Z93. The analyzed maternal haplogroups were identified as D4, D2, B4, C4, H1 and U7.", "title": "Genetics" }, { "paragraph_id": 21, "text": "A 2023 study published in the Journal of Systematics and Evolution analyzed the DNA of Empress Ashina (551–582), a royal Göktürk and immediate descendant of the first Khagans, whose remains were recovered from a mausoleum in Xianyang, China. The authors determined that Empress Ashina belonged to the North-East Asian mtDNA haplogroup F1d. Approximately 96-98% of her autosomal ancestry was of Ancient Northeast Asian origin, while roughly 2-4% was of West Eurasian origin, indicating ancient admixture, and no Chinese (\"Yellow River\") admixture. The results are consistent with a North-East Asian origin of the royal Ashina family and the Göktürk Khaganate. However, the Ashina did not show close genetic affinity with central-steppe Türks and early medieval Türks, who exhibit a high (but variable) degree of West Eurasian ancestry, which indicates that there was genetic sub-structure within the Türkic empire. For example, the ancestry of early medieval Turks was derived from Ancient Northeast Asians for about 62% of their genome, while the remaining 38% was derived from West Eurasians (BMAC and Afanasievo), with the admixture occurring around the year 500 CE.", "title": "Genetics" }, { "paragraph_id": 22, "text": "The Ashina was found to share genetic affinities to post-Iron Age Tungusic and Mongolic pastoralists, and was genetically closer to East Asians, while having heterogeneous relationships towards various Turkic-speaking groups in central Asia, suggesting genetic heterogeneity and multiple sources of origin for the population of the Turkic empire. This shows that the Ashina lineage had a dominating contribution on Mongolic and Tungusic speakers but limited contribution on Turkic-speaking populations. According to the authors, these findings \"once again validates a cultural diffusion model over a demic diffusion model for the spread of Turkic languages\" and refutes \"the western Eurasian origin and multiple origin hypotheses\" in favor of an East Asian origin for the royal Ashina family.", "title": "Genetics" }, { "paragraph_id": 23, "text": "", "title": "Sources" } ]
The Göktürks, Türks, Celestial Turks or Blue Turks were a nomadic confederation of Turkic peoples in medieval Inner Asia. The Göktürks, under the leadership of Bumin Qaghan and his sons, succeeded the Rouran Khaganate as the main power in the region and established the First Turkic Khaganate, one of several nomadic dynasties that would shape the future geolocation, culture, and dominant beliefs of Turkic peoples.
2001-05-16T15:25:32Z
2023-12-30T12:58:35Z
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https://en.wikipedia.org/wiki/G%C3%B6kt%C3%BCrks
12,236
GDP (disambiguation)
GDP, short for gross domestic product, is the basic measure of a country's overall economic output. GDP may also refer to: GdP may refer to:
[ { "paragraph_id": 0, "text": "GDP, short for gross domestic product, is the basic measure of a country's overall economic output.", "title": "" }, { "paragraph_id": 1, "text": "GDP may also refer to:", "title": "" }, { "paragraph_id": 2, "text": "GdP may refer to:", "title": "" } ]
GDP, short for gross domestic product, is the basic measure of a country's overall economic output. GDP may also refer to: GDP (chemotherapy), a chemotherapy treatment regimen GDP (musician), an American hip hop musician from New Jersey Giant depolarizing potentials, the first type of electrical activity of developing brain Gibraltar Defence Police, a civil police force which guards and enforces law on Ministry of Defence installations in Gibraltar Gidea Park railway station, National Rail station code GDP Good distribution practice, the guidelines for the proper distribution of medicinal products for human use Global Drifter Program, a program that was aiming to collect measurements of surface ocean currents, sea surface temperature and sea-level atmospheric pressure using drifters. Good documentation practice, pharmaceutical description of standards by which documents are created and maintained Ground delay program, a traffic flow initiative for aviation in the United States Guanosine diphosphate, a nucleotide Grand Ducal Police, the national police force of Luxembourg GdP may refer to: Gewerkschaft der Polizei (GdP), a trade union of police employees in Germany
2001-05-16T19:37:54Z
2023-08-20T22:12:35Z
[ "Template:Wiktionary", "Template:Lang", "Template:Disambiguation" ]
https://en.wikipedia.org/wiki/GDP_(disambiguation)
12,239
Guilt (emotion)
Guilt is a moral emotion that occurs when a person believes or realizes—accurately or not—that they have compromised their own standards of conduct or have violated universal moral standards and bear significant responsibility for that violation. Guilt is closely related to the concept of remorse, regret, as well as shame. Guilt is an important factor in perpetuating obsessive–compulsive disorder symptoms. The etymology of the word is obscure, and developed its modern spelling from the O.E. form gylt "crime, sin, fault, fine, debt", which is possibly derived from O.E. gieldan "to pay for, debt". Because it was used in the Lord's Prayer as the translation for the Latin debitum and also in Matthew xviii. 27, and gyltiȝ is used to render debet in Matthew xxiii. 18, it has been inferred to have had the primary sense of ‘debt’, though there is no real evidence for this. Its development into a "sense of guilt" is first recorded in 1690 as a misuse of its original meaning. "Guilt by association" is first recorded in 1941. "Guilty" is similarly from O.E. gyltig, itself from gylt. Guilt and its associated causes, advantages, and disadvantages are common themes in psychology and psychiatry. Both in specialized and in ordinary language, guilt is an affective state in which one experiences conflict at having done something that one believes one should not have done (or conversely, having not done something one believes one should have done). It gives rise to a feeling which does not go away easily, driven by 'conscience'. Sigmund Freud described this as the result of a struggle between the ego and the superego – parental imprinting. Freud rejected the role of God as punisher in times of illness or rewarder in time of wellness. While removing one source of guilt from patients, he described another. This was the unconscious force within the individual that contributed to illness, Freud in fact coming to consider "the obstacle of an unconscious sense of guilt...as the most powerful of all obstacles to recovery." For his later explicator, Jacques Lacan, guilt was the inevitable companion of the signifying subject who acknowledged normality in the form of the Symbolic order. Alice Miller claims that "many people suffer all their lives from this oppressive feeling of guilt, the sense of not having lived up to their parents' expectations....no argument can overcome these guilt feelings, for they have their beginnings in life's earliest period, and from that they derive their intensity." This may be linked to what Les Parrott has called "the disease of false guilt....At the root of false guilt is the idea that what you feel must be true." The philosopher Martin Buber underlined the difference between the Freudian notion of guilt, based on internal conflicts, and existential guilt, based on actual harm done to others. Guilt is often associated with anxiety. In mania, according to Otto Fenichel, the patient succeeds in applying to guilt "the defense mechanism of denial by overcompensation...re-enacts being a person without guilt feelings." In psychological research, guilt can be measured by using questionnaires, such as the Differential Emotions Scale (Izard's DES), or the Dutch Guilt Measurement Instrument. According to psychoanalytic theory, defenses against feeling guilt can become an overriding aspect of one's personality. The methods that can be used to avoid guilt are multiple. They include: Guilt proneness is reliably associated with moral character. Similarly, feelings of guilt can prompt subsequent virtuous behavior. People who feel guilty may be more likely to exercise restraint, avoid self-indulgence, and exhibit less prejudice. Guilt appears to prompt reparatory behaviors to alleviate the negative emotions that it engenders. People appear to engage in targeted and specific reparatory behaviors toward the persons they wronged or offended. Individuals high in psychopathy lack any true sense of guilt or remorse for harm they may have caused others. Instead, they rationalize their behavior, blame someone else, or deny it outright. People with psychopathy have a tendency to be harmful to themselves and to others. They have little ability to plan ahead for the future. An individual with psychopathy will never find themselves at fault because they will do whatever it takes to benefit themselves without reservation. A person that does not feel guilt or remorse would have no reason to find themselves at fault for something that they did with the intention of hurting another person. To a person high in psychopathy, their actions can always be rationalized to be the fault of another person. This is seen by psychologists as part of a lack of moral reasoning (in comparison with the majority of humans), an inability to evaluate situations in a moral framework, and an inability to develop emotional bonds with other people due to a lack of empathy. One study on psychopaths found that, under certain circumstances, they could willfully empathize with others, and that their empathic reaction initiated the same way it does for controls. Psychopathic criminals were brain-scanned while watching videos of a person harming another individual. The psychopaths' empathic reaction initiated the same way it did for controls when they were instructed to empathize with the harmed individual, and the area of the brain relating to pain was activated when the psychopaths were asked to imagine how the harmed individual felt. The research suggests psychopaths can switch empathy on at will, which would enable them to be both callous and charming. The team who conducted the study say they do not know how to transform this willful empathy into the spontaneous empathy most people have, though they propose it might be possible to rehabilitate psychopaths by helping them to activate their "empathy switch". Others suggested that it remains unclear whether psychopaths' experience of empathy was the same as that of controls, and also questioned the possibility of devising therapeutic interventions that would make the empathic reactions more automatic. Neuroscientist Antonio R. Damasio and his colleagues showed that subjects with damage to the ventromedial prefrontal cortex lack the ability to empathically feel their way to moral answers, and that when confronted with moral dilemmas, these brain-damaged patients coldly came up with "end-justifies-the-means" answers, leading Damasio to conclude that the point was not that they reached immoral conclusions, but that when they were confronted by a difficult issue – in this case as whether to shoot down a passenger plane hijacked by terrorists before it hits a major city – these patients appear to reach decisions without the anguish that afflicts those with normally functioning brains. According to Adrian Raine, a clinical neuroscientist also at the University of Southern California, one of this study's implications is that society may have to rethink how it judges immoral people: "Psychopaths often feel no empathy or remorse. Without that awareness, people relying exclusively on reasoning seem to find it harder to sort their way through moral thickets. Does that mean they should be held to different standards of accountability?" Some evolutionary psychologists theorize that guilt and shame helped maintain beneficial relationships, such as reciprocal altruism. If a person feels guilty when he harms another or fails to reciprocate kindness, he is more likely not to harm others or become too selfish. In this way, he reduces the chances of retaliation by members of his tribe, and thereby increases his survival prospects, and those of the tribe or group. As with any other emotion, guilt can be manipulated to control or influence others. As highly social animals living in large, relatively stable groups, humans need ways to deal with conflicts and events in which they inadvertently or purposefully harm others. If someone causes harm to another, and then feels guilt and demonstrates regret and sorrow, the person harmed is likely to forgive. Thus, guilt makes it possible to forgive, and helps hold the social group together. Collective guilt (or group guilt) is the unpleasant and often emotional reaction that results among a group of individuals when it is perceived that the group illegitimately harmed members of another group. It is often the result of "sharing a social identity with others whose actions represent a threat to the positivity of that identity". For an individual to experience collective guilt, he must identify himself as a part of the in-group. "This produces a perceptual shift from thinking of oneself in terms of 'I' and 'me' to 'us' or 'we'.” Guilt and shame are two closely related concepts, but they have key differences that should not be overlooked. Cultural Anthropologist Ruth Benedict describes shame as the result of a violation of cultural or social values, while guilt is conjured up internally when one's personal morals are violated. To put it more simply, the primary difference between shame and guilt is the source that creates the emotion. Shame arises from a real or imagined negative perception coming from others and guilt arises from a negative perception of one's own thoughts or actions. Psychoanalyst Helen Block Lewis stated that, "The experience of shame is directly about the self, which is the focus of evaluation. In guilt, the self is not the central object of negative evaluation, but rather the thing done is the focus." An individual can still possess a positive perception of themselves while also feeling guilt for certain actions or thoughts they took part in. Contrary to guilt, Shame has a more inclusive focus on the individual as a whole. Fossum and Mason's ideas clearly outline this idea in their book Facing Shame. They state that "While guilt is a painful feeling of regret and responsibility for one's actions, shame is a painful feeling about oneself as a person". Shame can almost be described as looking at yourself unfavorably through the eyes of others. Psychiatrist Judith Lewis Herman portrays this idea by stating that "Shame is an acutely self-conscious state in which the self is 'split,' imagining the self in the eyes of the other; by contrast, in guilt the self is unified". Both shame and guilt are directly related to self-perception, only shame causes the individual to account for the cultural and social beliefs of others. Paul Gilbert talks about the powerful hold that shame can take over someone in his article Evolution, Social Roles, and the Differences in Shame and Guilt. He says that "The fear of shame and ridicule can be so strong that people will risk serious physical injury or even death to avoid it. One of the reasons for this is because shame can indicate serious damage to social acceptance and a breakdown in a variety of social relationships. The evolutionary root of shame is in a self-focused, social threat system related to competitive behavior and the need to prove oneself acceptable/desirable to others" Guilt on the other hand evolved from a place of Care-Giving and avoidance of any act that harms others. Traditional Japanese society, Korean society and Chinese culture are sometimes said to be "shame-based" rather than "guilt-based", in that the social consequences of "getting caught" are seen as more important than the individual feelings or experiences of the agent (see the work of Ruth Benedict). The same has been said of Ancient Greek society, a culture where, in Bruno Snell's words, if "honour is destroyed the moral existence of the loser collapses." This may lead to more of a focus on etiquette than on ethics as understood in Western civilization, leading some in Western civilizations to question why the word ethos was adapted from Ancient Greek with such vast differences in cultural norms. Christianity and Islam inherit most notions of guilt from Judaism, Persian, and Roman ideas, mostly as interpreted through Augustine, who adapted Plato's ideas to Christianity. The Latin word for guilt is culpa, a word sometimes seen in law literature, for instance in mea culpa meaning "my fault (guilt)". Guilt is a main theme in John Steinbeck's East of Eden, Fyodor Dostoyevsky's Crime and Punishment, Tennessee Williams' A Streetcar Named Desire, William Shakespeare's play Macbeth, Edgar Allan Poe's "The Tell-Tale Heart" and "The Black Cat", and many other works of literature. In Sartre's The Flies, the Furies (in the form of flies) represent the morbid, strangling forces of neurotic guilt which bind us to authoritarian and totalitarian power. Guilt is a major theme in many works by Nathaniel Hawthorne, and is an almost universal concern of novelists who explore inner life and secrets. In his Kyriai Doxai (Principal Doctrines) 17 and 35, Epicurus teaches that we may identify and diagnose guilt by its signs and perturbations. Within his ethical system based on pleasure and pain, guilt manifests as constant fear of detection that emerges from "secretly doing something contrary to an agreement to not harm one another or be harmed". Since Epicurus rejects supernatural claims, the easiest way to avoid this perturbation is to avoid the antisocial behavior in order to continue enjoying ataraxia (the state of no-perturbation). However, once guilt is unavoidable, Epicurean Guides recommended confession of one's offenses as a practice that helps to purge the character from its evil tendencies and reform the character. According to Norman DeWitt, author of "St Paul and Epicurus", confession was one of the Epicurean practices that was later appropriated by the early Christian communities. Guilt in the Christian Bible is not merely an emotional state; it is also a legal state of deserving punishment. The Hebrew Bible does not have a unique word for guilt, but uses a single word to signify: "sin, the guilt of it, the punishment due unto it, and a sacrifice for it." The Greek New Testament uses a word for guilt that means "standing exposed to judgment for sin" (e. g., Romans 3:19). In what Christians call the "Old Testament", Christians believe the Bible teaches that, through sacrifice, one's sins can be forgiven (Judaism categorically rejects this idea, holding that forgiveness of sin is exclusively through repentance, and the role of sacrifices was for atonement of sins committed by accident or ignorance ). The New Testament says that forgiveness is given as written in 1 Corinthians 15:3–4: "3 For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, for that he was buried, that he was raised on the third day according to the Scriptures." In both the Old Testament and the New Testament, salvation is granted based on God's grace and forgiveness (Gen 6:8; 19:19; Exo 33:12–17; 34:6–7). The New Testament says that, in Jesus Christ, God took upon Himself the sins of the world and died on the cross to pay mankind's debt (Rom 6:23). Those who repent and accept Christ's sacrifice for their sins, will be redeemed by God and thus not guilty before Him. They will be granted eternal life which will take effect after the Second Coming of Christ (1 Thess 4:13–18). The Bible agrees with pagan cultures that guilt creates a cost that someone must pay (Heb 9:22). (This assumption was expressed in the previous section, "Defences": "Guilty people punish themselves if they have no opportunity to compensate the transgression that caused them to feel guilty. It was found that self-punishment did not occur if people had an opportunity to compensate the victim of their transgression.") Unlike pagan deities who demanded that debts for sin be paid by humans, God, according to the Bible, loved humanity enough to pay it Himself (Mat 5:45).
[ { "paragraph_id": 0, "text": "Guilt is a moral emotion that occurs when a person believes or realizes—accurately or not—that they have compromised their own standards of conduct or have violated universal moral standards and bear significant responsibility for that violation. Guilt is closely related to the concept of remorse, regret, as well as shame.", "title": "" }, { "paragraph_id": 1, "text": "Guilt is an important factor in perpetuating obsessive–compulsive disorder symptoms.", "title": "" }, { "paragraph_id": 2, "text": "The etymology of the word is obscure, and developed its modern spelling from the O.E. form gylt \"crime, sin, fault, fine, debt\", which is possibly derived from O.E. gieldan \"to pay for, debt\". Because it was used in the Lord's Prayer as the translation for the Latin debitum and also in Matthew xviii. 27, and gyltiȝ is used to render debet in Matthew xxiii. 18, it has been inferred to have had the primary sense of ‘debt’, though there is no real evidence for this.", "title": "Etymology" }, { "paragraph_id": 3, "text": "Its development into a \"sense of guilt\" is first recorded in 1690 as a misuse of its original meaning. \"Guilt by association\" is first recorded in 1941.", "title": "Etymology" }, { "paragraph_id": 4, "text": "\"Guilty\" is similarly from O.E. gyltig, itself from gylt.", "title": "Etymology" }, { "paragraph_id": 5, "text": "Guilt and its associated causes, advantages, and disadvantages are common themes in psychology and psychiatry. Both in specialized and in ordinary language, guilt is an affective state in which one experiences conflict at having done something that one believes one should not have done (or conversely, having not done something one believes one should have done). It gives rise to a feeling which does not go away easily, driven by 'conscience'. Sigmund Freud described this as the result of a struggle between the ego and the superego – parental imprinting. Freud rejected the role of God as punisher in times of illness or rewarder in time of wellness. While removing one source of guilt from patients, he described another. This was the unconscious force within the individual that contributed to illness, Freud in fact coming to consider \"the obstacle of an unconscious sense of guilt...as the most powerful of all obstacles to recovery.\" For his later explicator, Jacques Lacan, guilt was the inevitable companion of the signifying subject who acknowledged normality in the form of the Symbolic order.", "title": "Psychology" }, { "paragraph_id": 6, "text": "Alice Miller claims that \"many people suffer all their lives from this oppressive feeling of guilt, the sense of not having lived up to their parents' expectations....no argument can overcome these guilt feelings, for they have their beginnings in life's earliest period, and from that they derive their intensity.\" This may be linked to what Les Parrott has called \"the disease of false guilt....At the root of false guilt is the idea that what you feel must be true.\"", "title": "Psychology" }, { "paragraph_id": 7, "text": "The philosopher Martin Buber underlined the difference between the Freudian notion of guilt, based on internal conflicts, and existential guilt, based on actual harm done to others.", "title": "Psychology" }, { "paragraph_id": 8, "text": "Guilt is often associated with anxiety. In mania, according to Otto Fenichel, the patient succeeds in applying to guilt \"the defense mechanism of denial by overcompensation...re-enacts being a person without guilt feelings.\"", "title": "Psychology" }, { "paragraph_id": 9, "text": "In psychological research, guilt can be measured by using questionnaires, such as the Differential Emotions Scale (Izard's DES), or the Dutch Guilt Measurement Instrument.", "title": "Psychology" }, { "paragraph_id": 10, "text": "According to psychoanalytic theory, defenses against feeling guilt can become an overriding aspect of one's personality. The methods that can be used to avoid guilt are multiple. They include:", "title": "Psychology" }, { "paragraph_id": 11, "text": "Guilt proneness is reliably associated with moral character. Similarly, feelings of guilt can prompt subsequent virtuous behavior. People who feel guilty may be more likely to exercise restraint, avoid self-indulgence, and exhibit less prejudice. Guilt appears to prompt reparatory behaviors to alleviate the negative emotions that it engenders. People appear to engage in targeted and specific reparatory behaviors toward the persons they wronged or offended.", "title": "Psychology" }, { "paragraph_id": 12, "text": "Individuals high in psychopathy lack any true sense of guilt or remorse for harm they may have caused others. Instead, they rationalize their behavior, blame someone else, or deny it outright. People with psychopathy have a tendency to be harmful to themselves and to others. They have little ability to plan ahead for the future. An individual with psychopathy will never find themselves at fault because they will do whatever it takes to benefit themselves without reservation. A person that does not feel guilt or remorse would have no reason to find themselves at fault for something that they did with the intention of hurting another person. To a person high in psychopathy, their actions can always be rationalized to be the fault of another person. This is seen by psychologists as part of a lack of moral reasoning (in comparison with the majority of humans), an inability to evaluate situations in a moral framework, and an inability to develop emotional bonds with other people due to a lack of empathy.", "title": "Psychology" }, { "paragraph_id": 13, "text": "One study on psychopaths found that, under certain circumstances, they could willfully empathize with others, and that their empathic reaction initiated the same way it does for controls. Psychopathic criminals were brain-scanned while watching videos of a person harming another individual. The psychopaths' empathic reaction initiated the same way it did for controls when they were instructed to empathize with the harmed individual, and the area of the brain relating to pain was activated when the psychopaths were asked to imagine how the harmed individual felt. The research suggests psychopaths can switch empathy on at will, which would enable them to be both callous and charming. The team who conducted the study say they do not know how to transform this willful empathy into the spontaneous empathy most people have, though they propose it might be possible to rehabilitate psychopaths by helping them to activate their \"empathy switch\". Others suggested that it remains unclear whether psychopaths' experience of empathy was the same as that of controls, and also questioned the possibility of devising therapeutic interventions that would make the empathic reactions more automatic.", "title": "Psychology" }, { "paragraph_id": 14, "text": "Neuroscientist Antonio R. Damasio and his colleagues showed that subjects with damage to the ventromedial prefrontal cortex lack the ability to empathically feel their way to moral answers, and that when confronted with moral dilemmas, these brain-damaged patients coldly came up with \"end-justifies-the-means\" answers, leading Damasio to conclude that the point was not that they reached immoral conclusions, but that when they were confronted by a difficult issue – in this case as whether to shoot down a passenger plane hijacked by terrorists before it hits a major city – these patients appear to reach decisions without the anguish that afflicts those with normally functioning brains. According to Adrian Raine, a clinical neuroscientist also at the University of Southern California, one of this study's implications is that society may have to rethink how it judges immoral people: \"Psychopaths often feel no empathy or remorse. Without that awareness, people relying exclusively on reasoning seem to find it harder to sort their way through moral thickets. Does that mean they should be held to different standards of accountability?\"", "title": "Psychology" }, { "paragraph_id": 15, "text": "Some evolutionary psychologists theorize that guilt and shame helped maintain beneficial relationships, such as reciprocal altruism. If a person feels guilty when he harms another or fails to reciprocate kindness, he is more likely not to harm others or become too selfish. In this way, he reduces the chances of retaliation by members of his tribe, and thereby increases his survival prospects, and those of the tribe or group. As with any other emotion, guilt can be manipulated to control or influence others. As highly social animals living in large, relatively stable groups, humans need ways to deal with conflicts and events in which they inadvertently or purposefully harm others. If someone causes harm to another, and then feels guilt and demonstrates regret and sorrow, the person harmed is likely to forgive. Thus, guilt makes it possible to forgive, and helps hold the social group together.", "title": "Psychology" }, { "paragraph_id": 16, "text": "Collective guilt (or group guilt) is the unpleasant and often emotional reaction that results among a group of individuals when it is perceived that the group illegitimately harmed members of another group. It is often the result of \"sharing a social identity with others whose actions represent a threat to the positivity of that identity\". For an individual to experience collective guilt, he must identify himself as a part of the in-group. \"This produces a perceptual shift from thinking of oneself in terms of 'I' and 'me' to 'us' or 'we'.”", "title": "Collective guilt" }, { "paragraph_id": 17, "text": "Guilt and shame are two closely related concepts, but they have key differences that should not be overlooked. Cultural Anthropologist Ruth Benedict describes shame as the result of a violation of cultural or social values, while guilt is conjured up internally when one's personal morals are violated. To put it more simply, the primary difference between shame and guilt is the source that creates the emotion. Shame arises from a real or imagined negative perception coming from others and guilt arises from a negative perception of one's own thoughts or actions.", "title": "Comparison with shame" }, { "paragraph_id": 18, "text": "Psychoanalyst Helen Block Lewis stated that, \"The experience of shame is directly about the self, which is the focus of evaluation. In guilt, the self is not the central object of negative evaluation, but rather the thing done is the focus.\" An individual can still possess a positive perception of themselves while also feeling guilt for certain actions or thoughts they took part in. Contrary to guilt, Shame has a more inclusive focus on the individual as a whole. Fossum and Mason's ideas clearly outline this idea in their book Facing Shame. They state that \"While guilt is a painful feeling of regret and responsibility for one's actions, shame is a painful feeling about oneself as a person\".", "title": "Comparison with shame" }, { "paragraph_id": 19, "text": "Shame can almost be described as looking at yourself unfavorably through the eyes of others. Psychiatrist Judith Lewis Herman portrays this idea by stating that \"Shame is an acutely self-conscious state in which the self is 'split,' imagining the self in the eyes of the other; by contrast, in guilt the self is unified\". Both shame and guilt are directly related to self-perception, only shame causes the individual to account for the cultural and social beliefs of others.", "title": "Comparison with shame" }, { "paragraph_id": 20, "text": "Paul Gilbert talks about the powerful hold that shame can take over someone in his article Evolution, Social Roles, and the Differences in Shame and Guilt. He says that \"The fear of shame and ridicule can be so strong that people will risk serious physical injury or even death to avoid it. One of the reasons for this is because shame can indicate serious damage to social acceptance and a breakdown in a variety of social relationships. The evolutionary root of shame is in a self-focused, social threat system related to competitive behavior and the need to prove oneself acceptable/desirable to others\" Guilt on the other hand evolved from a place of Care-Giving and avoidance of any act that harms others.", "title": "Comparison with shame" }, { "paragraph_id": 21, "text": "Traditional Japanese society, Korean society and Chinese culture are sometimes said to be \"shame-based\" rather than \"guilt-based\", in that the social consequences of \"getting caught\" are seen as more important than the individual feelings or experiences of the agent (see the work of Ruth Benedict). The same has been said of Ancient Greek society, a culture where, in Bruno Snell's words, if \"honour is destroyed the moral existence of the loser collapses.\"", "title": "Cultural views" }, { "paragraph_id": 22, "text": "This may lead to more of a focus on etiquette than on ethics as understood in Western civilization, leading some in Western civilizations to question why the word ethos was adapted from Ancient Greek with such vast differences in cultural norms. Christianity and Islam inherit most notions of guilt from Judaism, Persian, and Roman ideas, mostly as interpreted through Augustine, who adapted Plato's ideas to Christianity. The Latin word for guilt is culpa, a word sometimes seen in law literature, for instance in mea culpa meaning \"my fault (guilt)\".", "title": "Cultural views" }, { "paragraph_id": 23, "text": "Guilt is a main theme in John Steinbeck's East of Eden, Fyodor Dostoyevsky's Crime and Punishment, Tennessee Williams' A Streetcar Named Desire, William Shakespeare's play Macbeth, Edgar Allan Poe's \"The Tell-Tale Heart\" and \"The Black Cat\", and many other works of literature. In Sartre's The Flies, the Furies (in the form of flies) represent the morbid, strangling forces of neurotic guilt which bind us to authoritarian and totalitarian power.", "title": "Cultural views" }, { "paragraph_id": 24, "text": "Guilt is a major theme in many works by Nathaniel Hawthorne, and is an almost universal concern of novelists who explore inner life and secrets.", "title": "Cultural views" }, { "paragraph_id": 25, "text": "In his Kyriai Doxai (Principal Doctrines) 17 and 35, Epicurus teaches that we may identify and diagnose guilt by its signs and perturbations. Within his ethical system based on pleasure and pain, guilt manifests as constant fear of detection that emerges from \"secretly doing something contrary to an agreement to not harm one another or be harmed\".", "title": "Cultural views" }, { "paragraph_id": 26, "text": "Since Epicurus rejects supernatural claims, the easiest way to avoid this perturbation is to avoid the antisocial behavior in order to continue enjoying ataraxia (the state of no-perturbation). However, once guilt is unavoidable, Epicurean Guides recommended confession of one's offenses as a practice that helps to purge the character from its evil tendencies and reform the character. According to Norman DeWitt, author of \"St Paul and Epicurus\", confession was one of the Epicurean practices that was later appropriated by the early Christian communities.", "title": "Cultural views" }, { "paragraph_id": 27, "text": "Guilt in the Christian Bible is not merely an emotional state; it is also a legal state of deserving punishment. The Hebrew Bible does not have a unique word for guilt, but uses a single word to signify: \"sin, the guilt of it, the punishment due unto it, and a sacrifice for it.\" The Greek New Testament uses a word for guilt that means \"standing exposed to judgment for sin\" (e. g., Romans 3:19). In what Christians call the \"Old Testament\", Christians believe the Bible teaches that, through sacrifice, one's sins can be forgiven (Judaism categorically rejects this idea, holding that forgiveness of sin is exclusively through repentance, and the role of sacrifices was for atonement of sins committed by accident or ignorance ).", "title": "Cultural views" }, { "paragraph_id": 28, "text": "The New Testament says that forgiveness is given as written in 1 Corinthians 15:3–4: \"3 For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, for that he was buried, that he was raised on the third day according to the Scriptures.\" In both the Old Testament and the New Testament, salvation is granted based on God's grace and forgiveness (Gen 6:8; 19:19; Exo 33:12–17; 34:6–7).", "title": "Cultural views" }, { "paragraph_id": 29, "text": "The New Testament says that, in Jesus Christ, God took upon Himself the sins of the world and died on the cross to pay mankind's debt (Rom 6:23). Those who repent and accept Christ's sacrifice for their sins, will be redeemed by God and thus not guilty before Him. They will be granted eternal life which will take effect after the Second Coming of Christ (1 Thess 4:13–18).", "title": "Cultural views" }, { "paragraph_id": 30, "text": "The Bible agrees with pagan cultures that guilt creates a cost that someone must pay (Heb 9:22). (This assumption was expressed in the previous section, \"Defences\": \"Guilty people punish themselves if they have no opportunity to compensate the transgression that caused them to feel guilty. It was found that self-punishment did not occur if people had an opportunity to compensate the victim of their transgression.\") Unlike pagan deities who demanded that debts for sin be paid by humans, God, according to the Bible, loved humanity enough to pay it Himself (Mat 5:45).", "title": "Cultural views" } ]
Guilt is a moral emotion that occurs when a person believes or realizes—accurately or not—that they have compromised their own standards of conduct or have violated universal moral standards and bear significant responsibility for that violation. Guilt is closely related to the concept of remorse, regret, as well as shame. Guilt is an important factor in perpetuating obsessive–compulsive disorder symptoms.
2001-07-10T22:51:05Z
2023-12-11T16:21:30Z
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https://en.wikipedia.org/wiki/Guilt_(emotion)
12,240
Gold
Gold is a chemical element; it has symbol Au (from Latin aurum 'gold') and atomic number 79. In pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as in electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is insoluble in nitric acid alone, which dissolves silver and base metals, a property long used to refine gold and confirm the presence of gold in metallic substances, giving rise to the term 'acid test'. Gold dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. Gold also dissolves in mercury, forming amalgam alloys, and as the gold acts simply as a solute, this is not a chemical reaction. A relatively rare element, gold is a precious metal that has been used for coinage, jewelry, and other work of art throughout recorded history. In the past, a gold standard was often implemented as a monetary policy. Gold coins ceased to be minted as a circulating currency in the 1930s, and the world gold standard was abandoned for a fiat currency system after the Nixon shock measures of 1971. In 2020, the world's largest gold producer was China, followed by Russia and Australia. A total of around 201,296 tonnes of gold exists above ground, as of 2020. This is equal to a cube with each side measuring roughly 21.7 meters (71 ft). The world's consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold's high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity have led to its continued use in corrosion-resistant electrical connectors in all types of computerized devices (its chief industrial use). Gold is also used in infrared shielding, the production of colored glass, gold leafing, and tooth restoration. Certain gold salts are still used as anti-inflammatories in medicine. Gold is the most malleable of all metals. It can be drawn into a wire of single-atom width, and then stretched considerably before it breaks. Such nanowires distort via the formation, reorientation, and migration of dislocations and crystal twins without noticeable hardening. A single gram of gold can be beaten into a sheet of 1 square metre (11 sq ft), and an avoirdupois ounce into 300 square feet (28 m). Gold leaf can be beaten thin enough to become semi-transparent. The transmitted light appears greenish-blue because gold strongly reflects yellow and red. Such semi-transparent sheets also strongly reflect infrared light, making them useful as infrared (radiant heat) shields in the visors of heat-resistant suits and in sun visors for spacesuits. Gold is a good conductor of heat and electricity. Gold has a density of 19.3 g/cm, almost identical to that of tungsten at 19.25 g/cm; as such, tungsten has been used in the counterfeiting of gold bars, such as by plating a tungsten bar with gold. By comparison, the density of lead is 11.34 g/cm, and that of the densest element, osmium, is 22.588±0.015 g/cm. Whereas most metals are gray or silvery white, gold is slightly reddish-yellow. This color is determined by the frequency of plasma oscillations among the metal's valence electrons, in the ultraviolet range for most metals but in the visible range for gold due to relativistic effects affecting the orbitals around gold atoms. Similar effects impart a golden hue to metallic caesium. Common colored gold alloys include the distinctive eighteen-karat rose gold created by the addition of copper. Alloys containing palladium or nickel are also important in commercial jewelry as these produce white gold alloys. Fourteen-karat gold-copper alloy is nearly identical in color to certain bronze alloys, and both may be used to produce police and other badges. Fourteen- and eighteen-karat gold alloys with silver alone appear greenish-yellow and are referred to as green gold. Blue gold can be made by alloying with iron, and purple gold can be made by alloying with aluminium. Less commonly, addition of manganese, indium, and other elements can produce more unusual colors of gold for various applications. Colloidal gold, used by electron-microscopists, is red if the particles are small; larger particles of colloidal gold are blue. Gold has only one stable isotope, Au, which is also its only naturally occurring isotope, so gold is both a mononuclidic and monoisotopic element. Thirty-six radioisotopes have been synthesized, ranging in atomic mass from 169 to 205. The most stable of these is Au with a half-life of 186.1 days. The least stable is Au, which decays by proton emission with a half-life of 30 µs. Most of gold's radioisotopes with atomic masses below 197 decay by some combination of proton emission, α decay, and β decay. The exceptions are Au, which decays by electron capture, and Au, which decays most often by electron capture (93%) with a minor β decay path (7%). All of gold's radioisotopes with atomic masses above 197 decay by β decay. At least 32 nuclear isomers have also been characterized, ranging in atomic mass from 170 to 200. Within that range, only Au, Au, Au, Au, and Au do not have isomers. Gold's most stable isomer is Au with a half-life of 2.27 days. Gold's least stable isomer is Au with a half-life of only 7 ns. Au has three decay paths: β decay, isomeric transition, and alpha decay. No other isomer or isotope of gold has three decay paths. The possible production of gold from a more common element, such as lead, has long been a subject of human inquiry, and the ancient and medieval discipline of alchemy often focused on it; however, the transmutation of the chemical elements did not become possible until the understanding of nuclear physics in the 20th century. The first synthesis of gold was conducted by Japanese physicist Hantaro Nagaoka, who synthesized gold from mercury in 1924 by neutron bombardment. An American team, working without knowledge of Nagaoka's prior study, conducted the same experiment in 1941, achieving the same result and showing that the isotopes of gold produced by it were all radioactive. In 1980, Glenn Seaborg transmuted several thousand atoms of bismuth into gold at the Lawrence Berkeley Laboratory. Gold can be manufactured in a nuclear reactor, but doing so is highly impractical and would cost far more than the value of the gold that is produced. Although gold is the most noble of the noble metals, it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au(I) and Au(III) dominate its chemistry. Au(I), referred to as the aurous ion, is the most common oxidation state with soft ligands such as thioethers, thiolates, and organophosphines. Au(I) compounds are typically linear. A good example is Au(CN)−2, which is the soluble form of gold encountered in mining. The binary gold halides, such as AuCl, form zigzag polymeric chains, again featuring linear coordination at Au. Most drugs based on gold are Au(I) derivatives. Au(III) (referred to as auric) is a common oxidation state, and is illustrated by gold(III) chloride, Au2Cl6. The gold atom centers in Au(III) complexes, like other d compounds, are typically square planar, with chemical bonds that have both covalent and ionic character. Gold(I,III) chloride is also known, an example of a mixed-valence complex. Gold does not react with oxygen at any temperature and, up to 100 °C, is resistant to attack from ozone: Some free halogens react with gold. Gold is strongly attacked by fluorine at dull-red heat to form gold(III) fluoride AuF3. Powdered gold reacts with chlorine at 180 °C to form gold(III) chloride AuCl3. Gold reacts with bromine at 140 °C to form a combination of gold(III) bromide AuBr3 and gold(I) bromide AuBr, but reacts very slowly with iodine to form gold(I) iodide AuI: Gold does not react with sulfur directly, but gold(III) sulfide can be made by passing hydrogen sulfide through a dilute solution of gold(III) chloride or chlorauric acid. Unlike sulfur, phosphorus reacts directly with gold at elevated temperatures to produce gold phosphide (Au2P3). Gold readily dissolves in mercury at room temperature to form an amalgam, and forms alloys with many other metals at higher temperatures. These alloys can be produced to modify the hardness and other metallurgical properties, to control melting point or to create exotic colors. Gold is unaffected by most acids. It does not react with hydrofluoric, hydrochloric, hydrobromic, hydriodic, sulfuric, or nitric acid. It does react with selenic acid, and is dissolved by aqua regia, a 1:3 mixture of nitric acid and hydrochloric acid. Nitric acid oxidizes the metal to +3 ions, but only in minute amounts, typically undetectable in the pure acid because of the chemical equilibrium of the reaction. However, the ions are removed from the equilibrium by hydrochloric acid, forming AuCl−4 ions, or chloroauric acid, thereby enabling further oxidation: Gold is similarly unaffected by most bases. It does not react with aqueous, solid, or molten sodium or potassium hydroxide. It does however, react with sodium or potassium cyanide under alkaline conditions when oxygen is present to form soluble complexes. Common oxidation states of gold include +1 (gold(I) or aurous compounds) and +3 (gold(III) or auric compounds). Gold ions in solution are readily reduced and precipitated as metal by adding any other metal as the reducing agent. The added metal is oxidized and dissolves, allowing the gold to be displaced from solution and be recovered as a solid precipitate. Less common oxidation states of gold include −1, +2, and +5. The −1 oxidation state occurs in aurides, compounds containing the Au anion. Caesium auride (CsAu), for example, crystallizes in the caesium chloride motif; rubidium, potassium, and tetramethylammonium aurides are also known. Gold has the highest electron affinity of any metal, at 222.8 kJ/mol, making Au a stable species, analogous to the halides. Gold also has a –1 oxidation state in covalent complexes with the group 4 transition metals, such as in titanium tetraauride and the analogous zirconium and hafnium compounds. These chemicals are expected to form gold-bridged dimers in a manner similar to titanium(IV) hydride. Gold(II) compounds are usually diamagnetic with Au–Au bonds such as [Au(CH2)2P(C6H5)2]2Cl2. The evaporation of a solution of Au(OH)3 in concentrated H2SO4 produces red crystals of gold(II) sulfate, Au2(SO4)2. Originally thought to be a mixed-valence compound, it has been shown to contain Au4+2 cations, analogous to the better-known mercury(I) ion, Hg2+2. A gold(II) complex, the tetraxenonogold(II) cation, which contains xenon as a ligand, occurs in [AuXe4](Sb2F11)2. In September 2023, a novel type of metal-halide perovskite material consisting of Au and Au cations in its crystal structure has been found. It has been shown to unexpectedly stable at normal conditions. Gold pentafluoride, along with its derivative anion, AuF−6, and its difluorine complex, gold heptafluoride, is the sole example of gold(V), the highest verified oxidation state. Some gold compounds exhibit aurophilic bonding, which describes the tendency of gold ions to interact at distances that are too long to be a conventional Au–Au bond but shorter than van der Waals bonding. The interaction is estimated to be comparable in strength to that of a hydrogen bond. Well-defined cluster compounds are numerous. In some cases, gold has a fractional oxidation state. A representative example is the octahedral species {Au(P(C6H5)3)}2+6. Gold is thought to have been produced in supernova nucleosynthesis, and from the collision of neutron stars, and to have been present in the dust from which the Solar System formed. Traditionally, gold in the universe is thought to have formed by the r-process (rapid neutron capture) in supernova nucleosynthesis, but more recently it has been suggested that gold and other elements heavier than iron may also be produced in quantity by the r-process in the collision of neutron stars. In both cases, satellite spectrometers at first only indirectly detected the resulting gold. However, in August 2017, the spectroscopic signatures of heavy elements, including gold, were observed by electromagnetic observatories in the GW170817 neutron star merger event, after gravitational wave detectors confirmed the event as a neutron star merger. Current astrophysical models suggest that this single neutron star merger event generated between 3 and 13 Earth masses of gold. This amount, along with estimations of the rate of occurrence of these neutron star merger events, suggests that such mergers may produce enough gold to account for most of the abundance of this element in the universe. Because the Earth was molten when it was formed, almost all of the gold present in the early Earth probably sank into the planetary core. Therefore, most of the gold that is in the Earth's crust and mantle has in one model thought to have been delivered to Earth later, by asteroid impacts during the Late Heavy Bombardment, about 4 billion years ago. Gold which is reachable by humans has, in one case, been associated with a particular asteroid impact. The asteroid that formed Vredefort impact structure 2.020 billion years ago is often credited with seeding the Witwatersrand basin in South Africa with the richest gold deposits on earth. However, this scenario is now questioned. The gold-bearing Witwatersrand rocks were laid down between 700 and 950 million years before the Vredefort impact. These gold-bearing rocks had furthermore been covered by a thick layer of Ventersdorp lavas and the Transvaal Supergroup of rocks before the meteor struck, and thus the gold did not actually arrive in the asteroid/meteorite. What the Vredefort impact achieved, however, was to distort the Witwatersrand basin in such a way that the gold-bearing rocks were brought to the present erosion surface in Johannesburg, on the Witwatersrand, just inside the rim of the original 300 km (190 mi) diameter crater caused by the meteor strike. The discovery of the deposit in 1886 launched the Witwatersrand Gold Rush. Some 22% of all the gold that is ascertained to exist today on Earth has been extracted from these Witwatersrand rocks. Notwithstanding the impact above, much of the rest of the gold on Earth is thought to have been incorporated into the planet since its very beginning, as planetesimals formed the planet's mantle, early in Earth's creation. In 2017, an international group of scientists, established that gold "came to the Earth's surface from the deepest regions of our planet", the mantle, evidenced by their findings at Deseado Massif in the Argentinian Patagonia. On Earth, gold is found in ores in rock formed from the Precambrian time onward. It most often occurs as a native metal, typically in a metal solid solution with silver (i.e. as a gold/silver alloy). Such alloys usually have a silver content of 8–10%. Electrum is elemental gold with more than 20% silver, and is commonly known as white gold. Electrum's color runs from golden-silvery to silvery, dependent upon the silver content. The more silver, the lower the specific gravity. Native gold occurs as very small to microscopic particles embedded in rock, often together with quartz or sulfide minerals such as "fool's gold", which is a pyrite. These are called lode deposits. The metal in a native state is also found in the form of free flakes, grains or larger nuggets that have been eroded from rocks and end up in alluvial deposits called placer deposits. Such free gold is always richer at the exposed surface of gold-bearing veins, owing to the oxidation of accompanying minerals followed by weathering; and by washing of the dust into streams and rivers, where it collects and can be welded by water action to form nuggets. Gold sometimes occurs combined with tellurium as the minerals calaverite, krennerite, nagyagite, petzite and sylvanite (see telluride minerals), and as the rare bismuthide maldonite (Au2Bi) and antimonide aurostibite (AuSb2). Gold also occurs in rare alloys with copper, lead, and mercury: the minerals auricupride (Cu3Au), novodneprite (AuPb3) and weishanite ((Au,Ag)3Hg2). Recent research suggests that microbes can sometimes play an important role in forming gold deposits, transporting and precipitating gold to form grains and nuggets that collect in alluvial deposits. Another recent study has claimed water in faults vaporizes during an earthquake, depositing gold. When an earthquake strikes, it moves along a fault. Water often lubricates faults, filling in fractures and jogs. About 10 kilometres (6.2 mi) below the surface, under very high temperatures and pressures, the water carries high concentrations of carbon dioxide, silica, and gold. During an earthquake, the fault jog suddenly opens wider. The water inside the void instantly vaporizes, flashing to steam and forcing silica, which forms the mineral quartz, and gold out of the fluids and onto nearby surfaces. The world's oceans contain gold. Measured concentrations of gold in the Atlantic and Northeast Pacific are 50–150 femtomol/L or 10–30 parts per quadrillion (about 10–30 g/km). In general, gold concentrations for south Atlantic and central Pacific samples are the same (~50 femtomol/L) but less certain. Mediterranean deep waters contain slightly higher concentrations of gold (100–150 femtomol/L) attributed to wind-blown dust or rivers. At 10 parts per quadrillion the Earth's oceans would hold 15,000 tonnes of gold. These figures are three orders of magnitude less than reported in the literature prior to 1988, indicating contamination problems with the earlier data. A number of people have claimed to be able to economically recover gold from sea water, but they were either mistaken or acted in an intentional deception. Prescott Jernegan ran a gold-from-seawater swindle in the United States in the 1890s, as did an English fraudster in the early 1900s. Fritz Haber did research on the extraction of gold from sea water in an effort to help pay Germany's reparations following World War I. Based on the published values of 2 to 64 ppb of gold in seawater a commercially successful extraction seemed possible. After analysis of 4,000 water samples yielding an average of 0.004 ppb it became clear that extraction would not be possible and he ended the project. The earliest recorded metal employed by humans appears to be gold, which can be found free or "native". Small amounts of natural gold have been found in Spanish caves used during the late Paleolithic period, c. 40,000 BC. The oldest gold artifacts in the world are from Bulgaria and are dating back to the 5th millennium BC (4,600 BC to 4,200 BC), such as those found in the Varna Necropolis near Lake Varna and the Black Sea coast, thought to be the earliest "well-dated" finding of gold artifacts in history. Several prehistoric Bulgarian finds are considered no less old – the golden treasures of Hotnitsa, Durankulak, artifacts from the Kurgan settlement of Yunatsite near Pazardzhik, the golden treasure Sakar, as well as beads and gold jewelry found in the Kurgan settlement of Provadia – Solnitsata ("salt pit"). However, Varna gold is most often called the oldest since this treasure is the largest and most diverse. Gold artifacts probably made their first appearance in Ancient Egypt at the very beginning of the pre-dynastic period, at the end of the fifth millennium BC and the start of the fourth, and smelting was developed during the course of the 4th millennium; gold artifacts appear in the archeology of Lower Mesopotamia during the early 4th millennium. As of 1990, gold artifacts found at the Wadi Qana cave cemetery of the 4th millennium BC in West Bank were the earliest from the Levant. Gold artifacts such as the golden hats and the Nebra disk appeared in Central Europe from the 2nd millennium BC Bronze Age. The oldest known map of a gold mine was drawn in the 19th Dynasty of Ancient Egypt (1320–1200 BC), whereas the first written reference to gold was recorded in the 12th Dynasty around 1900 BC. Egyptian hieroglyphs from as early as 2600 BC describe gold, which King Tushratta of the Mitanni claimed was "more plentiful than dirt" in Egypt. Egypt and especially Nubia had the resources to make them major gold-producing areas for much of history. One of the earliest known maps, known as the Turin Papyrus Map, shows the plan of a gold mine in Nubia together with indications of the local geology. The primitive working methods are described by both Strabo and Diodorus Siculus, and included fire-setting. Large mines were also present across the Red Sea in what is now Saudi Arabia. Gold is mentioned in the Amarna letters numbered 19 and 26 from around the 14th century BC. Gold is mentioned frequently in the Old Testament, starting with Genesis 2:11 (at Havilah), the story of the golden calf, and many parts of the temple including the Menorah and the golden altar. In the New Testament, it is included with the gifts of the magi in the first chapters of Matthew. The Book of Revelation 21:21 describes the city of New Jerusalem as having streets "made of pure gold, clear as crystal". Exploitation of gold in the south-east corner of the Black Sea is said to date from the time of Midas, and this gold was important in the establishment of what is probably the world's earliest coinage in Lydia around 610 BC. The legend of the golden fleece dating from eighth century BCE may refer to the use of fleeces to trap gold dust from placer deposits in the ancient world. From the 6th or 5th century BC, the Chu (state) circulated the Ying Yuan, one kind of square gold coin. In Roman metallurgy, new methods for extracting gold on a large scale were developed by introducing hydraulic mining methods, especially in Hispania from 25 BC onwards and in Dacia from 106 AD onwards. One of their largest mines was at Las Medulas in León, where seven long aqueducts enabled them to sluice most of a large alluvial deposit. The mines at Roşia Montană in Transylvania were also very large, and until very recently, still mined by opencast methods. They also exploited smaller deposits in Britain, such as placer and hard-rock deposits at Dolaucothi. The various methods they used are well described by Pliny the Elder in his encyclopedia Naturalis Historia written towards the end of the first century AD. During Mansa Musa's (ruler of the Mali Empire from 1312 to 1337) hajj to Mecca in 1324, he passed through Cairo in July 1324, and was reportedly accompanied by a camel train that included thousands of people and nearly a hundred camels where he gave away so much gold that it depressed the price in Egypt for over a decade, causing high inflation. A contemporary Arab historian remarked: Gold was at a high price in Egypt until they came in that year. The mithqal did not go below 25 dirhams and was generally above, but from that time its value fell and it cheapened in price and has remained cheap till now. The mithqal does not exceed 22 dirhams or less. This has been the state of affairs for about twelve years until this day by reason of the large amount of gold which they brought into Egypt and spent there [...]. The European exploration of the Americas was fueled in no small part by reports of the gold ornaments displayed in great profusion by Native American peoples, especially in Mesoamerica, Peru, Ecuador and Colombia. The Aztecs regarded gold as the product of the gods, calling it literally "god excrement" (teocuitlatl in Nahuatl), and after Moctezuma II was killed, most of this gold was shipped to Spain. However, for the indigenous peoples of North America gold was considered useless and they saw much greater value in other minerals which were directly related to their utility, such as obsidian, flint, and slate. El Dorado is applied to a legendary story in which precious stones were found in fabulous abundance along with gold coins. The concept of El Dorado underwent several transformations, and eventually accounts of the previous myth were also combined with those of a legendary lost city. El Dorado, was the term used by the Spanish Empire to describe a mythical tribal chief (zipa) of the Muisca native people in Colombia, who, as an initiation rite, covered himself with gold dust and submerged in Lake Guatavita. The legends surrounding El Dorado changed over time, as it went from being a man, to a city, to a kingdom, and then finally to an empire. Beginning in the early modern period, European exploration and colonization of West Africa was driven in large part by reports of gold deposits in the region, which was eventually referred to by Europeans as the "Gold Coast". From the late 15th to early 19th centuries, European trade in the region was primarily focused in gold, along with ivory and slaves. The gold trade in West Africa was dominated by the Ashanti Empire, who initially traded with the Portuguese before branching out and trading with British, French, Spanish and Danish merchants. British desires to secure control of West African gold deposits played a role in the Anglo-Ashanti wars of the late 19th century, which saw the Ashanti Empire annexed by Britain. Gold played a role in western culture, as a cause for desire and of corruption, as told in children's fables such as Rumpelstiltskin—where Rumpelstiltskin turns hay into gold for the peasant's daughter in return for her child when she becomes a princess—and the stealing of the hen that lays golden eggs in Jack and the Beanstalk. The top prize at the Olympic Games and many other sports competitions is the gold medal. 75% of the presently accounted for gold has been extracted since 1910, two-thirds since 1950. One main goal of the alchemists was to produce gold from other substances, such as lead — presumably by the interaction with a mythical substance called the philosopher's stone. Trying to produce gold led the alchemists to systematically find out what can be done with substances, and this laid the foundation for today's chemistry, which can produce gold (albeit uneconomically) by using nuclear transmutation. Their symbol for gold was the circle with a point at its center (☉), which was also the astrological symbol and the ancient Chinese character for the Sun. The Dome of the Rock is covered with an ultra-thin golden glassier. The Sikh Golden temple, the Harmandir Sahib, is a building covered with gold. Similarly the Wat Phra Kaew emerald Buddhist temple (wat) in Thailand has ornamental gold-leafed statues and roofs. Some European king and queen's crowns were made of gold, and gold was used for the bridal crown since antiquity. An ancient Talmudic text circa 100 AD describes Rachel, wife of Rabbi Akiva, receiving a "Jerusalem of Gold" (diadem). A Greek burial crown made of gold was found in a grave circa 370 BC. 'Gold' is cognate with similar words in many Germanic languages, deriving via Proto-Germanic *gulþą from Proto-Indo-European *ǵʰelh₃- ("to shine, to gleam; to be yellow or green"). The symbol Au is from the Latin: aurum, the Latin word for "gold". The Proto-Indo-European ancestor of aurum was *h₂é-h₂us-o-, meaning "glow". This word is derived from the same root (Proto-Indo-European *h₂u̯es- "to dawn") as *h₂éu̯sōs, the ancestor of the Latin word Aurora, "dawn". This etymological relationship is presumably behind the frequent claim in scientific publications that aurum meant "shining dawn". In popular culture gold is a high standard of excellence, often used in awards. Great achievements are frequently rewarded with gold, in the form of gold medals, gold trophies and other decorations. Winners of athletic events and other graded competitions are usually awarded a gold medal. Many awards such as the Nobel Prize are made from gold as well. Other award statues and prizes are depicted in gold or are gold plated (such as the Academy Awards, the Golden Globe Awards, the Emmy Awards, the Palme d'Or, and the British Academy Film Awards). Aristotle in his ethics used gold symbolism when referring to what is now known as the golden mean. Similarly, gold is associated with perfect or divine principles, such as in the case of the golden ratio and the golden rule. Gold is further associated with the wisdom of aging and fruition. The fiftieth wedding anniversary is golden. A person's most valued or most successful latter years are sometimes considered "golden years". The height of a civilization is referred to as a golden age. The first known prehistoric human usages of gold were religious in nature. In some forms of Christianity and Judaism, gold has been associated both with the sacred and evil. In the Book of Exodus, the Golden Calf is a symbol of idolatry, while in the Book of Genesis, Abraham was said to be rich in gold and silver, and Moses was instructed to cover the Mercy Seat of the Ark of the Covenant with pure gold. In Byzantine iconography the halos of Christ, Virgin Mary and the saints are often golden. In Islam, gold (along with silk) is often cited as being forbidden for men to wear. Abu Bakr al-Jazaeri, quoting a hadith, said that "[t]he wearing of silk and gold are forbidden on the males of my nation, and they are lawful to their women". This, however, has not been enforced consistently throughout history, e.g. in the Ottoman Empire. Further, small gold accents on clothing, such as in embroidery, may be permitted. In ancient Greek religion and mythology, Theia was seen as the goddess of gold, silver and other gems. According to Christopher Columbus, those who had something of gold were in possession of something of great value on Earth and a substance to even help souls to paradise. Wedding rings are typically made of gold. It is long lasting and unaffected by the passage of time and may aid in the ring symbolism of eternal vows before God and the perfection the marriage signifies. In Orthodox Christian wedding ceremonies, the wedded couple is adorned with a golden crown (though some opt for wreaths, instead) during the ceremony, an amalgamation of symbolic rites. On 24 August 2020, Israeli archaeologists discovered a trove of early Islamic gold coins near the central city of Yavne. Analysis of the extremely rare collection of 425 gold coins indicated that they were from the late 9th century. Dating to around 1,100 years back, the gold coins were from the Abbasid Caliphate. According to the United States Geological Survey in 2016, about 5,726,000,000 troy ounces (178,100 t) of gold has been accounted for, of which 85% remains in active use. Since the 1880s, South Africa has been the source of a large proportion of the world's gold supply, and about 22% of the gold presently accounted is from South Africa. Production in 1970 accounted for 79% of the world supply, about 1,480 tonnes. In 2007 China (with 276 tonnes) overtook South Africa as the world's largest gold producer, the first time since 1905 that South Africa had not been the largest. In 2020, China was the world's leading gold-mining country, followed in order by Russia, Australia, the United States, Canada, and Ghana. In South America, the controversial project Pascua Lama aims at exploitation of rich fields in the high mountains of Atacama Desert, at the border between Chile and Argentina. It has been estimated that up to one-quarter of the yearly global gold production originates from artisanal or small scale mining. The city of Johannesburg located in South Africa was founded as a result of the Witwatersrand Gold Rush which resulted in the discovery of some of the largest natural gold deposits in recorded history. The gold fields are confined to the northern and north-western edges of the Witwatersrand basin, which is a 5–7 km (3.1–4.3 mi) thick layer of archean rocks located, in most places, deep under the Free State, Gauteng and surrounding provinces. These Witwatersrand rocks are exposed at the surface on the Witwatersrand, in and around Johannesburg, but also in isolated patches to the south-east and south-west of Johannesburg, as well as in an arc around the Vredefort Dome which lies close to the center of the Witwatersrand basin. From these surface exposures the basin dips extensively, requiring some of the mining to occur at depths of nearly 4,000 m (13,000 ft), making them, especially the Savuka and TauTona mines to the south-west of Johannesburg, the deepest mines on earth. The gold is found only in six areas where archean rivers from the north and north-west formed extensive pebbly Braided river deltas before draining into the "Witwatersrand sea" where the rest of the Witwatersrand sediments were deposited. The Second Boer War of 1899–1901 between the British Empire and the Afrikaner Boers was at least partly over the rights of miners and possession of the gold wealth in South Africa. During the 19th century, gold rushes occurred whenever large gold deposits were discovered. The first documented discovery of gold in the United States was at the Reed Gold Mine near Georgeville, North Carolina in 1803. The first major gold strike in the United States occurred in a small north Georgia town called Dahlonega. Further gold rushes occurred in California, Colorado, the Black Hills, Otago in New Zealand, a number of locations across Australia, Witwatersrand in South Africa, and the Klondike in Canada. Grasberg mine located in Papua, Indonesia is the largest gold mine in the world. Gold extraction is most economical in large, easily mined deposits. Ore grades as little as 0.5 parts per million (ppm) can be economical. Typical ore grades in open-pit mines are 1–5 ppm; ore grades in underground or hard rock mines are usually at least 3 ppm. Because ore grades of 30 ppm are usually needed before gold is visible to the naked eye, in most gold mines the gold is invisible. The average gold mining and extraction costs were about $317 per troy ounce in 2007, but these can vary widely depending on mining type and ore quality; global mine production amounted to 2,471.1 tonnes. After initial production, gold is often subsequently refined industrially by the Wohlwill process which is based on electrolysis or by the Miller process, that is chlorination in the melt. The Wohlwill process results in higher purity, but is more complex and is only applied in small-scale installations. Other methods of assaying and purifying smaller amounts of gold include parting and inquartation as well as cupellation, or refining methods based on the dissolution of gold in aqua regia. In 1997, recycled gold accounted for approximately 20% of the 2700 tons of gold supplied to the market. Jewelry companies such as Generation Collection and computer companies including Dell conduct recycling As of 2020, the amount of carbon dioxide CO2 produced in mining a kilogram of gold is 16 tonnes, while recycling a kilogram of gold produces 53 kilograms of CO2 equivalent. Approximately 30 percent of the global gold supply is recycled and not mined as of 2020. The consumption of gold produced in the world is about 50% in jewelry, 40% in investments, and 10% in industry. According to the World Gold Council, China was the world's largest single consumer of gold in 2013, overtaking India. Gold production is associated with contribution to hazardous pollution. Low-grade gold ore may contain less than one ppm gold metal; such ore is ground and mixed with sodium cyanide to dissolve the gold. Cyanide is a highly poisonous chemical, which can kill living creatures when exposed in minute quantities. Many cyanide spills from gold mines have occurred in both developed and developing countries which killed aquatic life in long stretches of affected rivers. Environmentalists consider these events major environmental disasters. Up to thirty tons of used ore can be dumped as waste for producing one troy ounce of gold. Gold ore dumps are the source of many heavy elements such as cadmium, lead, zinc, copper, arsenic, selenium and mercury. When sulfide-bearing minerals in these ore dumps are exposed to air and water, the sulfide transforms into sulfuric acid which in turn dissolves these heavy metals facilitating their passage into surface water and ground water. This process is called acid mine drainage. These gold ore dumps contain long-term, highly hazardous waste. It was once common to use mercury to recover gold from ore, but today the use of mercury is largely limited to small-scale individual miners. Minute quantities of mercury compounds can reach water bodies, causing heavy metal contamination. Mercury can then enter into the human food chain in the form of methylmercury. Mercury poisoning in humans causes incurable brain function damage and severe retardation. Gold extraction is also a highly energy-intensive industry, extracting ore from deep mines and grinding the large quantity of ore for further chemical extraction requires nearly 25 kWh of electricity per gram of gold produced. Gold has been widely used throughout the world as money, for efficient indirect exchange (versus barter), and to store wealth in hoards. For exchange purposes, mints produce standardized gold bullion coins, bars and other units of fixed weight and purity. The first known coins containing gold were struck in Lydia, Asia Minor, around 600 BC. The talent coin of gold in use during the periods of Grecian history both before and during the time of the life of Homer weighed between 8.42 and 8.75 grams. From an earlier preference in using silver, European economies re-established the minting of gold as coinage during the thirteenth and fourteenth centuries. Bills (that mature into gold coin) and gold certificates (convertible into gold coin at the issuing bank) added to the circulating stock of gold standard money in most 19th century industrial economies. In preparation for World War I the warring nations moved to fractional gold standards, inflating their currencies to finance the war effort. Post-war, the victorious countries, most notably Britain, gradually restored gold-convertibility, but international flows of gold via bills of exchange remained embargoed; international shipments were made exclusively for bilateral trades or to pay war reparations. After World War II gold was replaced by a system of nominally convertible currencies related by fixed exchange rates following the Bretton Woods system. Gold standards and the direct convertibility of currencies to gold have been abandoned by world governments, led in 1971 by the United States' refusal to redeem its dollars in gold. Fiat currency now fills most monetary roles. Switzerland was the last country to tie its currency to gold; this was ended by a referendum in 1999. Central banks continue to keep a portion of their liquid reserves as gold in some form, and metals exchanges such as the London Bullion Market Association still clear transactions denominated in gold, including future delivery contracts. Today, gold mining output is declining. With the sharp growth of economies in the 20th century, and increasing foreign exchange, the world's gold reserves and their trading market have become a small fraction of all markets and fixed exchange rates of currencies to gold have been replaced by floating prices for gold and gold future contract. Though the gold stock grows by only 1% or 2% per year, very little metal is irretrievably consumed. Inventory above ground would satisfy many decades of industrial and even artisan uses at current prices. The gold proportion (fineness) of alloys is measured by karat (k). Pure gold (commercially termed fine gold) is designated as 24 karat, abbreviated 24k. English gold coins intended for circulation from 1526 into the 1930s were typically a standard 22k alloy called crown gold, for hardness (American gold coins for circulation after 1837 contain an alloy of 0.900 fine gold, or 21.6 kt). Although the prices of some platinum group metals can be much higher, gold has long been considered the most desirable of precious metals, and its value has been used as the standard for many currencies. Gold has been used as a symbol for purity, value, royalty, and particularly roles that combine these properties. Gold as a sign of wealth and prestige was ridiculed by Thomas More in his treatise Utopia. On that imaginary island, gold is so abundant that it is used to make chains for slaves, tableware, and lavatory seats. When ambassadors from other countries arrive, dressed in ostentatious gold jewels and badges, the Utopians mistake them for menial servants, paying homage instead to the most modestly dressed of their party. The ISO 4217 currency code of gold is XAU. Many holders of gold store it in form of bullion coins or bars as a hedge against inflation or other economic disruptions, though its efficacy as such has been questioned; historically, it has not proven itself reliable as a hedging instrument. Modern bullion coins for investment or collector purposes do not require good mechanical wear properties; they are typically fine gold at 24k, although the American Gold Eagle and the British gold sovereign continue to be minted in 22k (0.92) metal in historical tradition, and the South African Krugerrand, first released in 1967, is also 22k (0.92). The special issue Canadian Gold Maple Leaf coin contains the highest purity gold of any bullion coin, at 99.999% or 0.99999, while the popular issue Canadian Gold Maple Leaf coin has a purity of 99.99%. In 2006, the United States Mint began producing the American Buffalo gold bullion coin with a purity of 99.99%. The Australian Gold Kangaroos were first coined in 1986 as the Australian Gold Nugget but changed the reverse design in 1989. Other modern coins include the Austrian Vienna Philharmonic bullion coin and the Chinese Gold Panda. Like other precious metals, gold is measured by troy weight and by grams. The proportion of gold in the alloy is measured by karat (k), with 24 karat (24k) being pure gold (100%), and lower karat numbers proportionally less (18k = 75%). The purity of a gold bar or coin can also be expressed as a decimal figure ranging from 0 to 1, known as the millesimal fineness, such as 0.995 being nearly pure. The price of gold is determined through trading in the gold and derivatives markets, but a procedure known as the Gold Fixing in London, originating in September 1919, provides a daily benchmark price to the industry. The afternoon fixing was introduced in 1968 to provide a price when US markets are open. As of September 2017, gold was valued at around $42 per gram ($1,300 per troy ounce). Historically gold coinage was widely used as currency; when paper money was introduced, it typically was a receipt redeemable for gold coin or bullion. In a monetary system known as the gold standard, a certain weight of gold was given the name of a unit of currency. For a long period, the United States government set the value of the US dollar so that one troy ounce was equal to $20.67 ($0.665 per gram), but in 1934 the dollar was devalued to $35.00 per troy ounce ($0.889/g). By 1961, it was becoming hard to maintain this price, and a pool of US and European banks agreed to manipulate the market to prevent further currency devaluation against increased gold demand. The largest gold depository in the world is that of the U.S. Federal Reserve Bank in New York, which holds about 3% of the gold known to exist and accounted for today, as does the similarly laden U.S. Bullion Depository at Fort Knox. In 2005 the World Gold Council estimated total global gold supply to be 3,859 tonnes and demand to be 3,754 tonnes, giving a surplus of 105 tonnes. After 15 August 1971 Nixon shock, the price began to greatly increase, and between 1968 and 2000 the price of gold ranged widely, from a high of $850 per troy ounce ($27.33/g) on 21 January 1980, to a low of $252.90 per troy ounce ($8.13/g) on 21 June 1999 (London Gold Fixing). Prices increased rapidly from 2001, but the 1980 high was not exceeded until 3 January 2008, when a new maximum of $865.35 per troy ounce was set. Another record price was set on 17 March 2008, at $1023.50 per troy ounce ($32.91/g). On 2 December 2009, gold reached a new high closing at $1,217.23. Gold further rallied hitting new highs in May 2010 after the European Union debt crisis prompted further purchase of gold as a safe asset. On 1 March 2011, gold hit a new all-time high of $1432.57, based on investor concerns regarding ongoing unrest in North Africa as well as in the Middle East. From April 2001 to August 2011, spot gold prices more than quintupled in value against the US dollar, hitting a new all-time high of $1,913.50 on 23 August 2011, prompting speculation that the long secular bear market had ended and a bull market had returned. However, the price then began a slow decline towards $1200 per troy ounce in late 2014 and 2015. In August 2020, the gold price picked up to US$2060 per ounce after a total growth of 59% from August 2018 to October 2020, a period during which it outplaced the Nasdaq total return of 54%. Gold futures are traded on the COMEX exchange. These contacts are priced in USD per troy ounce (1 troy ounce = 31.1034768 grams). Below are the CQG contract specifications outlining the futures contracts: Because of the softness of pure (24k) gold, it is usually alloyed with other metals for use in jewelry, altering its hardness and ductility, melting point, color and other properties. Alloys with lower karat rating, typically 22k, 18k, 14k or 10k, contain higher percentages of copper, silver, palladium or other base metals in the alloy. Nickel is toxic, and its release from nickel white gold is controlled by legislation in Europe. Palladium-gold alloys are more expensive than those using nickel. High-karat white gold alloys are more resistant to corrosion than are either pure silver or sterling silver. The Japanese craft of Mokume-gane exploits the color contrasts between laminated colored gold alloys to produce decorative wood-grain effects. By 2014, the gold jewelry industry was escalating despite a dip in gold prices. Demand in the first quarter of 2014 pushed turnover to $23.7 billion according to a World Gold Council report. Gold solder is used for joining the components of gold jewelry by high-temperature hard soldering or brazing. If the work is to be of hallmarking quality, the gold solder alloy must match the fineness of the work, and alloy formulas are manufactured to color-match yellow and white gold. Gold solder is usually made in at least three melting-point ranges referred to as Easy, Medium and Hard. By using the hard, high-melting point solder first, followed by solders with progressively lower melting points, goldsmiths can assemble complex items with several separate soldered joints. Gold can also be made into thread and used in embroidery. Only 10% of the world consumption of new gold produced goes to industry, but by far the most important industrial use for new gold is in fabrication of corrosion-free electrical connectors in computers and other electrical devices. For example, according to the World Gold Council, a typical cell phone may contain 50 mg of gold, worth about 2 dollars 82 cents. But since nearly one billion cell phones are produced each year, a gold value of US$2.82 in each phone adds to US$2.82 billion in gold from just this application. (Prices updated to November 2022) Though gold is attacked by free chlorine, its good conductivity and general resistance to oxidation and corrosion in other environments (including resistance to non-chlorinated acids) has led to its widespread industrial use in the electronic era as a thin-layer coating on electrical connectors, thereby ensuring good connection. For example, gold is used in the connectors of the more expensive electronics cables, such as audio, video and USB cables. The benefit of using gold over other connector metals such as tin in these applications has been debated; gold connectors are often criticized by audio-visual experts as unnecessary for most consumers and seen as simply a marketing ploy. However, the use of gold in other applications in electronic sliding contacts in highly humid or corrosive atmospheres, and in use for contacts with a very high failure cost (certain computers, communications equipment, spacecraft, jet aircraft engines) remains very common. Besides sliding electrical contacts, gold is also used in electrical contacts because of its resistance to corrosion, electrical conductivity, ductility and lack of toxicity. Switch contacts are generally subjected to more intense corrosion stress than are sliding contacts. Fine gold wires are used to connect semiconductor devices to their packages through a process known as wire bonding. The concentration of free electrons in gold metal is 5.91×10 cm. Gold is highly conductive to electricity and has been used for electrical wiring in some high-energy applications (only silver and copper are more conductive per volume, but gold has the advantage of corrosion resistance). For example, gold electrical wires were used during some of the Manhattan Project's atomic experiments, but large high-current silver wires were used in the calutron isotope separator magnets in the project. It is estimated that 16% of the world's presently-accounted-for gold and 22% of the world's silver is contained in electronic technology in Japan. Metallic and gold compounds have long been used for medicinal purposes. Gold, usually as the metal, is perhaps the most anciently administered medicine (apparently by shamanic practitioners) and known to Dioscorides. In medieval times, gold was often seen as beneficial for the health, in the belief that something so rare and beautiful could not be anything but healthy. Even some modern esotericists and forms of alternative medicine assign metallic gold a healing power. In the 19th century gold had a reputation as an anxiolytic, a therapy for nervous disorders. Depression, epilepsy, migraine, and glandular problems such as amenorrhea and impotence were treated, and most notably alcoholism (Keeley, 1897). The apparent paradox of the actual toxicology of the substance suggests the possibility of serious gaps in the understanding of the action of gold in physiology. Only salts and radioisotopes of gold are of pharmacological value, since elemental (metallic) gold is inert to all chemicals it encounters inside the body (e.g., ingested gold cannot be attacked by stomach acid). Some gold salts do have anti-inflammatory properties and at present two are still used as pharmaceuticals in the treatment of arthritis and other similar conditions in the US (sodium aurothiomalate and auranofin). These drugs have been explored as a means to help to reduce the pain and swelling of rheumatoid arthritis, and also (historically) against tuberculosis and some parasites. Gold alloys are used in restorative dentistry, especially in tooth restorations, such as crowns and permanent bridges. The gold alloys' slight malleability facilitates the creation of a superior molar mating surface with other teeth and produces results that are generally more satisfactory than those produced by the creation of porcelain crowns. The use of gold crowns in more prominent teeth such as incisors is favored in some cultures and discouraged in others. Colloidal gold preparations (suspensions of gold nanoparticles) in water are intensely red-colored, and can be made with tightly controlled particle sizes up to a few tens of nanometers across by reduction of gold chloride with citrate or ascorbate ions. Colloidal gold is used in research applications in medicine, biology and materials science. The technique of immunogold labeling exploits the ability of the gold particles to adsorb protein molecules onto their surfaces. Colloidal gold particles coated with specific antibodies can be used as probes for the presence and position of antigens on the surfaces of cells. In ultrathin sections of tissues viewed by electron microscopy, the immunogold labels appear as extremely dense round spots at the position of the antigen. Gold, or alloys of gold and palladium, are applied as conductive coating to biological specimens and other non-conducting materials such as plastics and glass to be viewed in a scanning electron microscope. The coating, which is usually applied by sputtering with an argon plasma, has a triple role in this application. Gold's very high electrical conductivity drains electrical charge to earth, and its very high density provides stopping power for electrons in the electron beam, helping to limit the depth to which the electron beam penetrates the specimen. This improves definition of the position and topography of the specimen surface and increases the spatial resolution of the image. Gold also produces a high output of secondary electrons when irradiated by an electron beam, and these low-energy electrons are the most commonly used signal source used in the scanning electron microscope. The isotope gold-198 (half-life 2.7 days) is used in nuclear medicine, in some cancer treatments and for treating other diseases. Pure metallic (elemental) gold is non-toxic and non-irritating when ingested and is sometimes used as a food decoration in the form of gold leaf. Metallic gold is also a component of the alcoholic drinks Goldschläger, Gold Strike, and Goldwasser. Metallic gold is approved as a food additive in the EU (E175 in the Codex Alimentarius). Although the gold ion is toxic, the acceptance of metallic gold as a food additive is due to its relative chemical inertness, and resistance to being corroded or transformed into soluble salts (gold compounds) by any known chemical process which would be encountered in the human body. Soluble compounds (gold salts) such as gold chloride are toxic to the liver and kidneys. Common cyanide salts of gold such as potassium gold cyanide, used in gold electroplating, are toxic by virtue of both their cyanide and gold content. There are rare cases of lethal gold poisoning from potassium gold cyanide. Gold toxicity can be ameliorated with chelation therapy with an agent such as dimercaprol. Gold metal was voted Allergen of the Year in 2001 by the American Contact Dermatitis Society; gold contact allergies affect mostly women. Despite this, gold is a relatively non-potent contact allergen, in comparison with metals like nickel. A sample of the fungus Aspergillus niger was found growing from gold mining solution; and was found to contain cyano metal complexes, such as gold, silver, copper, iron and zinc. The fungus also plays a role in the solubilization of heavy metal sulfides.
[ { "paragraph_id": 0, "text": "Gold is a chemical element; it has symbol Au (from Latin aurum 'gold') and atomic number 79. In pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements and is solid under standard conditions.", "title": "" }, { "paragraph_id": 1, "text": "Gold often occurs in free elemental (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as in electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).", "title": "" }, { "paragraph_id": 2, "text": "Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is insoluble in nitric acid alone, which dissolves silver and base metals, a property long used to refine gold and confirm the presence of gold in metallic substances, giving rise to the term 'acid test'. Gold dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. Gold also dissolves in mercury, forming amalgam alloys, and as the gold acts simply as a solute, this is not a chemical reaction.", "title": "" }, { "paragraph_id": 3, "text": "A relatively rare element, gold is a precious metal that has been used for coinage, jewelry, and other work of art throughout recorded history. In the past, a gold standard was often implemented as a monetary policy. Gold coins ceased to be minted as a circulating currency in the 1930s, and the world gold standard was abandoned for a fiat currency system after the Nixon shock measures of 1971.", "title": "" }, { "paragraph_id": 4, "text": "In 2020, the world's largest gold producer was China, followed by Russia and Australia. A total of around 201,296 tonnes of gold exists above ground, as of 2020. This is equal to a cube with each side measuring roughly 21.7 meters (71 ft). The world's consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold's high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity have led to its continued use in corrosion-resistant electrical connectors in all types of computerized devices (its chief industrial use). Gold is also used in infrared shielding, the production of colored glass, gold leafing, and tooth restoration. Certain gold salts are still used as anti-inflammatories in medicine.", "title": "" }, { "paragraph_id": 5, "text": "Gold is the most malleable of all metals. It can be drawn into a wire of single-atom width, and then stretched considerably before it breaks. Such nanowires distort via the formation, reorientation, and migration of dislocations and crystal twins without noticeable hardening. A single gram of gold can be beaten into a sheet of 1 square metre (11 sq ft), and an avoirdupois ounce into 300 square feet (28 m). Gold leaf can be beaten thin enough to become semi-transparent. The transmitted light appears greenish-blue because gold strongly reflects yellow and red. Such semi-transparent sheets also strongly reflect infrared light, making them useful as infrared (radiant heat) shields in the visors of heat-resistant suits and in sun visors for spacesuits. Gold is a good conductor of heat and electricity.", "title": "Characteristics" }, { "paragraph_id": 6, "text": "Gold has a density of 19.3 g/cm, almost identical to that of tungsten at 19.25 g/cm; as such, tungsten has been used in the counterfeiting of gold bars, such as by plating a tungsten bar with gold. By comparison, the density of lead is 11.34 g/cm, and that of the densest element, osmium, is 22.588±0.015 g/cm.", "title": "Characteristics" }, { "paragraph_id": 7, "text": "Whereas most metals are gray or silvery white, gold is slightly reddish-yellow. This color is determined by the frequency of plasma oscillations among the metal's valence electrons, in the ultraviolet range for most metals but in the visible range for gold due to relativistic effects affecting the orbitals around gold atoms. Similar effects impart a golden hue to metallic caesium.", "title": "Characteristics" }, { "paragraph_id": 8, "text": "Common colored gold alloys include the distinctive eighteen-karat rose gold created by the addition of copper. Alloys containing palladium or nickel are also important in commercial jewelry as these produce white gold alloys. Fourteen-karat gold-copper alloy is nearly identical in color to certain bronze alloys, and both may be used to produce police and other badges. Fourteen- and eighteen-karat gold alloys with silver alone appear greenish-yellow and are referred to as green gold. Blue gold can be made by alloying with iron, and purple gold can be made by alloying with aluminium. Less commonly, addition of manganese, indium, and other elements can produce more unusual colors of gold for various applications.", "title": "Characteristics" }, { "paragraph_id": 9, "text": "Colloidal gold, used by electron-microscopists, is red if the particles are small; larger particles of colloidal gold are blue.", "title": "Characteristics" }, { "paragraph_id": 10, "text": "Gold has only one stable isotope, Au, which is also its only naturally occurring isotope, so gold is both a mononuclidic and monoisotopic element. Thirty-six radioisotopes have been synthesized, ranging in atomic mass from 169 to 205. The most stable of these is Au with a half-life of 186.1 days. The least stable is Au, which decays by proton emission with a half-life of 30 µs. Most of gold's radioisotopes with atomic masses below 197 decay by some combination of proton emission, α decay, and β decay. The exceptions are Au, which decays by electron capture, and Au, which decays most often by electron capture (93%) with a minor β decay path (7%). All of gold's radioisotopes with atomic masses above 197 decay by β decay.", "title": "Characteristics" }, { "paragraph_id": 11, "text": "At least 32 nuclear isomers have also been characterized, ranging in atomic mass from 170 to 200. Within that range, only Au, Au, Au, Au, and Au do not have isomers. Gold's most stable isomer is Au with a half-life of 2.27 days. Gold's least stable isomer is Au with a half-life of only 7 ns. Au has three decay paths: β decay, isomeric transition, and alpha decay. No other isomer or isotope of gold has three decay paths.", "title": "Characteristics" }, { "paragraph_id": 12, "text": "The possible production of gold from a more common element, such as lead, has long been a subject of human inquiry, and the ancient and medieval discipline of alchemy often focused on it; however, the transmutation of the chemical elements did not become possible until the understanding of nuclear physics in the 20th century. The first synthesis of gold was conducted by Japanese physicist Hantaro Nagaoka, who synthesized gold from mercury in 1924 by neutron bombardment. An American team, working without knowledge of Nagaoka's prior study, conducted the same experiment in 1941, achieving the same result and showing that the isotopes of gold produced by it were all radioactive. In 1980, Glenn Seaborg transmuted several thousand atoms of bismuth into gold at the Lawrence Berkeley Laboratory. Gold can be manufactured in a nuclear reactor, but doing so is highly impractical and would cost far more than the value of the gold that is produced.", "title": "Characteristics" }, { "paragraph_id": 13, "text": "Although gold is the most noble of the noble metals, it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au(I) and Au(III) dominate its chemistry. Au(I), referred to as the aurous ion, is the most common oxidation state with soft ligands such as thioethers, thiolates, and organophosphines. Au(I) compounds are typically linear. A good example is Au(CN)−2, which is the soluble form of gold encountered in mining. The binary gold halides, such as AuCl, form zigzag polymeric chains, again featuring linear coordination at Au. Most drugs based on gold are Au(I) derivatives.", "title": "Chemistry" }, { "paragraph_id": 14, "text": "Au(III) (referred to as auric) is a common oxidation state, and is illustrated by gold(III) chloride, Au2Cl6. The gold atom centers in Au(III) complexes, like other d compounds, are typically square planar, with chemical bonds that have both covalent and ionic character. Gold(I,III) chloride is also known, an example of a mixed-valence complex.", "title": "Chemistry" }, { "paragraph_id": 15, "text": "Gold does not react with oxygen at any temperature and, up to 100 °C, is resistant to attack from ozone:", "title": "Chemistry" }, { "paragraph_id": 16, "text": "Some free halogens react with gold. Gold is strongly attacked by fluorine at dull-red heat to form gold(III) fluoride AuF3. Powdered gold reacts with chlorine at 180 °C to form gold(III) chloride AuCl3. Gold reacts with bromine at 140 °C to form a combination of gold(III) bromide AuBr3 and gold(I) bromide AuBr, but reacts very slowly with iodine to form gold(I) iodide AuI:", "title": "Chemistry" }, { "paragraph_id": 17, "text": "Gold does not react with sulfur directly, but gold(III) sulfide can be made by passing hydrogen sulfide through a dilute solution of gold(III) chloride or chlorauric acid.", "title": "Chemistry" }, { "paragraph_id": 18, "text": "Unlike sulfur, phosphorus reacts directly with gold at elevated temperatures to produce gold phosphide (Au2P3).", "title": "Chemistry" }, { "paragraph_id": 19, "text": "Gold readily dissolves in mercury at room temperature to form an amalgam, and forms alloys with many other metals at higher temperatures. These alloys can be produced to modify the hardness and other metallurgical properties, to control melting point or to create exotic colors.", "title": "Chemistry" }, { "paragraph_id": 20, "text": "Gold is unaffected by most acids. It does not react with hydrofluoric, hydrochloric, hydrobromic, hydriodic, sulfuric, or nitric acid. It does react with selenic acid, and is dissolved by aqua regia, a 1:3 mixture of nitric acid and hydrochloric acid. Nitric acid oxidizes the metal to +3 ions, but only in minute amounts, typically undetectable in the pure acid because of the chemical equilibrium of the reaction. However, the ions are removed from the equilibrium by hydrochloric acid, forming AuCl−4 ions, or chloroauric acid, thereby enabling further oxidation:", "title": "Chemistry" }, { "paragraph_id": 21, "text": "Gold is similarly unaffected by most bases. It does not react with aqueous, solid, or molten sodium or potassium hydroxide. It does however, react with sodium or potassium cyanide under alkaline conditions when oxygen is present to form soluble complexes.", "title": "Chemistry" }, { "paragraph_id": 22, "text": "Common oxidation states of gold include +1 (gold(I) or aurous compounds) and +3 (gold(III) or auric compounds). Gold ions in solution are readily reduced and precipitated as metal by adding any other metal as the reducing agent. The added metal is oxidized and dissolves, allowing the gold to be displaced from solution and be recovered as a solid precipitate.", "title": "Chemistry" }, { "paragraph_id": 23, "text": "Less common oxidation states of gold include −1, +2, and +5.", "title": "Chemistry" }, { "paragraph_id": 24, "text": "The −1 oxidation state occurs in aurides, compounds containing the Au anion. Caesium auride (CsAu), for example, crystallizes in the caesium chloride motif; rubidium, potassium, and tetramethylammonium aurides are also known. Gold has the highest electron affinity of any metal, at 222.8 kJ/mol, making Au a stable species, analogous to the halides.", "title": "Chemistry" }, { "paragraph_id": 25, "text": "Gold also has a –1 oxidation state in covalent complexes with the group 4 transition metals, such as in titanium tetraauride and the analogous zirconium and hafnium compounds. These chemicals are expected to form gold-bridged dimers in a manner similar to titanium(IV) hydride.", "title": "Chemistry" }, { "paragraph_id": 26, "text": "Gold(II) compounds are usually diamagnetic with Au–Au bonds such as [Au(CH2)2P(C6H5)2]2Cl2. The evaporation of a solution of Au(OH)3 in concentrated H2SO4 produces red crystals of gold(II) sulfate, Au2(SO4)2. Originally thought to be a mixed-valence compound, it has been shown to contain Au4+2 cations, analogous to the better-known mercury(I) ion, Hg2+2. A gold(II) complex, the tetraxenonogold(II) cation, which contains xenon as a ligand, occurs in [AuXe4](Sb2F11)2. In September 2023, a novel type of metal-halide perovskite material consisting of Au and Au cations in its crystal structure has been found. It has been shown to unexpectedly stable at normal conditions.", "title": "Chemistry" }, { "paragraph_id": 27, "text": "Gold pentafluoride, along with its derivative anion, AuF−6, and its difluorine complex, gold heptafluoride, is the sole example of gold(V), the highest verified oxidation state.", "title": "Chemistry" }, { "paragraph_id": 28, "text": "Some gold compounds exhibit aurophilic bonding, which describes the tendency of gold ions to interact at distances that are too long to be a conventional Au–Au bond but shorter than van der Waals bonding. The interaction is estimated to be comparable in strength to that of a hydrogen bond.", "title": "Chemistry" }, { "paragraph_id": 29, "text": "Well-defined cluster compounds are numerous. In some cases, gold has a fractional oxidation state. A representative example is the octahedral species {Au(P(C6H5)3)}2+6.", "title": "Chemistry" }, { "paragraph_id": 30, "text": "Gold is thought to have been produced in supernova nucleosynthesis, and from the collision of neutron stars, and to have been present in the dust from which the Solar System formed.", "title": "Origin" }, { "paragraph_id": 31, "text": "Traditionally, gold in the universe is thought to have formed by the r-process (rapid neutron capture) in supernova nucleosynthesis, but more recently it has been suggested that gold and other elements heavier than iron may also be produced in quantity by the r-process in the collision of neutron stars. In both cases, satellite spectrometers at first only indirectly detected the resulting gold. However, in August 2017, the spectroscopic signatures of heavy elements, including gold, were observed by electromagnetic observatories in the GW170817 neutron star merger event, after gravitational wave detectors confirmed the event as a neutron star merger. Current astrophysical models suggest that this single neutron star merger event generated between 3 and 13 Earth masses of gold. This amount, along with estimations of the rate of occurrence of these neutron star merger events, suggests that such mergers may produce enough gold to account for most of the abundance of this element in the universe.", "title": "Origin" }, { "paragraph_id": 32, "text": "Because the Earth was molten when it was formed, almost all of the gold present in the early Earth probably sank into the planetary core. Therefore, most of the gold that is in the Earth's crust and mantle has in one model thought to have been delivered to Earth later, by asteroid impacts during the Late Heavy Bombardment, about 4 billion years ago.", "title": "Origin" }, { "paragraph_id": 33, "text": "Gold which is reachable by humans has, in one case, been associated with a particular asteroid impact. The asteroid that formed Vredefort impact structure 2.020 billion years ago is often credited with seeding the Witwatersrand basin in South Africa with the richest gold deposits on earth. However, this scenario is now questioned. The gold-bearing Witwatersrand rocks were laid down between 700 and 950 million years before the Vredefort impact. These gold-bearing rocks had furthermore been covered by a thick layer of Ventersdorp lavas and the Transvaal Supergroup of rocks before the meteor struck, and thus the gold did not actually arrive in the asteroid/meteorite. What the Vredefort impact achieved, however, was to distort the Witwatersrand basin in such a way that the gold-bearing rocks were brought to the present erosion surface in Johannesburg, on the Witwatersrand, just inside the rim of the original 300 km (190 mi) diameter crater caused by the meteor strike. The discovery of the deposit in 1886 launched the Witwatersrand Gold Rush. Some 22% of all the gold that is ascertained to exist today on Earth has been extracted from these Witwatersrand rocks.", "title": "Origin" }, { "paragraph_id": 34, "text": "Notwithstanding the impact above, much of the rest of the gold on Earth is thought to have been incorporated into the planet since its very beginning, as planetesimals formed the planet's mantle, early in Earth's creation. In 2017, an international group of scientists, established that gold \"came to the Earth's surface from the deepest regions of our planet\", the mantle, evidenced by their findings at Deseado Massif in the Argentinian Patagonia.", "title": "Origin" }, { "paragraph_id": 35, "text": "On Earth, gold is found in ores in rock formed from the Precambrian time onward. It most often occurs as a native metal, typically in a metal solid solution with silver (i.e. as a gold/silver alloy). Such alloys usually have a silver content of 8–10%. Electrum is elemental gold with more than 20% silver, and is commonly known as white gold. Electrum's color runs from golden-silvery to silvery, dependent upon the silver content. The more silver, the lower the specific gravity.", "title": "Occurrence" }, { "paragraph_id": 36, "text": "Native gold occurs as very small to microscopic particles embedded in rock, often together with quartz or sulfide minerals such as \"fool's gold\", which is a pyrite. These are called lode deposits. The metal in a native state is also found in the form of free flakes, grains or larger nuggets that have been eroded from rocks and end up in alluvial deposits called placer deposits. Such free gold is always richer at the exposed surface of gold-bearing veins, owing to the oxidation of accompanying minerals followed by weathering; and by washing of the dust into streams and rivers, where it collects and can be welded by water action to form nuggets.", "title": "Occurrence" }, { "paragraph_id": 37, "text": "Gold sometimes occurs combined with tellurium as the minerals calaverite, krennerite, nagyagite, petzite and sylvanite (see telluride minerals), and as the rare bismuthide maldonite (Au2Bi) and antimonide aurostibite (AuSb2). Gold also occurs in rare alloys with copper, lead, and mercury: the minerals auricupride (Cu3Au), novodneprite (AuPb3) and weishanite ((Au,Ag)3Hg2).", "title": "Occurrence" }, { "paragraph_id": 38, "text": "Recent research suggests that microbes can sometimes play an important role in forming gold deposits, transporting and precipitating gold to form grains and nuggets that collect in alluvial deposits.", "title": "Occurrence" }, { "paragraph_id": 39, "text": "Another recent study has claimed water in faults vaporizes during an earthquake, depositing gold. When an earthquake strikes, it moves along a fault. Water often lubricates faults, filling in fractures and jogs. About 10 kilometres (6.2 mi) below the surface, under very high temperatures and pressures, the water carries high concentrations of carbon dioxide, silica, and gold. During an earthquake, the fault jog suddenly opens wider. The water inside the void instantly vaporizes, flashing to steam and forcing silica, which forms the mineral quartz, and gold out of the fluids and onto nearby surfaces.", "title": "Occurrence" }, { "paragraph_id": 40, "text": "The world's oceans contain gold. Measured concentrations of gold in the Atlantic and Northeast Pacific are 50–150 femtomol/L or 10–30 parts per quadrillion (about 10–30 g/km). In general, gold concentrations for south Atlantic and central Pacific samples are the same (~50 femtomol/L) but less certain. Mediterranean deep waters contain slightly higher concentrations of gold (100–150 femtomol/L) attributed to wind-blown dust or rivers. At 10 parts per quadrillion the Earth's oceans would hold 15,000 tonnes of gold. These figures are three orders of magnitude less than reported in the literature prior to 1988, indicating contamination problems with the earlier data.", "title": "Occurrence" }, { "paragraph_id": 41, "text": "A number of people have claimed to be able to economically recover gold from sea water, but they were either mistaken or acted in an intentional deception. Prescott Jernegan ran a gold-from-seawater swindle in the United States in the 1890s, as did an English fraudster in the early 1900s. Fritz Haber did research on the extraction of gold from sea water in an effort to help pay Germany's reparations following World War I. Based on the published values of 2 to 64 ppb of gold in seawater a commercially successful extraction seemed possible. After analysis of 4,000 water samples yielding an average of 0.004 ppb it became clear that extraction would not be possible and he ended the project.", "title": "Occurrence" }, { "paragraph_id": 42, "text": "The earliest recorded metal employed by humans appears to be gold, which can be found free or \"native\". Small amounts of natural gold have been found in Spanish caves used during the late Paleolithic period, c. 40,000 BC.", "title": "History" }, { "paragraph_id": 43, "text": "The oldest gold artifacts in the world are from Bulgaria and are dating back to the 5th millennium BC (4,600 BC to 4,200 BC), such as those found in the Varna Necropolis near Lake Varna and the Black Sea coast, thought to be the earliest \"well-dated\" finding of gold artifacts in history. Several prehistoric Bulgarian finds are considered no less old – the golden treasures of Hotnitsa, Durankulak, artifacts from the Kurgan settlement of Yunatsite near Pazardzhik, the golden treasure Sakar, as well as beads and gold jewelry found in the Kurgan settlement of Provadia – Solnitsata (\"salt pit\"). However, Varna gold is most often called the oldest since this treasure is the largest and most diverse.", "title": "History" }, { "paragraph_id": 44, "text": "Gold artifacts probably made their first appearance in Ancient Egypt at the very beginning of the pre-dynastic period, at the end of the fifth millennium BC and the start of the fourth, and smelting was developed during the course of the 4th millennium; gold artifacts appear in the archeology of Lower Mesopotamia during the early 4th millennium. As of 1990, gold artifacts found at the Wadi Qana cave cemetery of the 4th millennium BC in West Bank were the earliest from the Levant. Gold artifacts such as the golden hats and the Nebra disk appeared in Central Europe from the 2nd millennium BC Bronze Age.", "title": "History" }, { "paragraph_id": 45, "text": "The oldest known map of a gold mine was drawn in the 19th Dynasty of Ancient Egypt (1320–1200 BC), whereas the first written reference to gold was recorded in the 12th Dynasty around 1900 BC. Egyptian hieroglyphs from as early as 2600 BC describe gold, which King Tushratta of the Mitanni claimed was \"more plentiful than dirt\" in Egypt. Egypt and especially Nubia had the resources to make them major gold-producing areas for much of history. One of the earliest known maps, known as the Turin Papyrus Map, shows the plan of a gold mine in Nubia together with indications of the local geology. The primitive working methods are described by both Strabo and Diodorus Siculus, and included fire-setting. Large mines were also present across the Red Sea in what is now Saudi Arabia.", "title": "History" }, { "paragraph_id": 46, "text": "Gold is mentioned in the Amarna letters numbered 19 and 26 from around the 14th century BC.", "title": "History" }, { "paragraph_id": 47, "text": "Gold is mentioned frequently in the Old Testament, starting with Genesis 2:11 (at Havilah), the story of the golden calf, and many parts of the temple including the Menorah and the golden altar. In the New Testament, it is included with the gifts of the magi in the first chapters of Matthew. The Book of Revelation 21:21 describes the city of New Jerusalem as having streets \"made of pure gold, clear as crystal\". Exploitation of gold in the south-east corner of the Black Sea is said to date from the time of Midas, and this gold was important in the establishment of what is probably the world's earliest coinage in Lydia around 610 BC. The legend of the golden fleece dating from eighth century BCE may refer to the use of fleeces to trap gold dust from placer deposits in the ancient world. From the 6th or 5th century BC, the Chu (state) circulated the Ying Yuan, one kind of square gold coin.", "title": "History" }, { "paragraph_id": 48, "text": "In Roman metallurgy, new methods for extracting gold on a large scale were developed by introducing hydraulic mining methods, especially in Hispania from 25 BC onwards and in Dacia from 106 AD onwards. One of their largest mines was at Las Medulas in León, where seven long aqueducts enabled them to sluice most of a large alluvial deposit. The mines at Roşia Montană in Transylvania were also very large, and until very recently, still mined by opencast methods. They also exploited smaller deposits in Britain, such as placer and hard-rock deposits at Dolaucothi. The various methods they used are well described by Pliny the Elder in his encyclopedia Naturalis Historia written towards the end of the first century AD.", "title": "History" }, { "paragraph_id": 49, "text": "During Mansa Musa's (ruler of the Mali Empire from 1312 to 1337) hajj to Mecca in 1324, he passed through Cairo in July 1324, and was reportedly accompanied by a camel train that included thousands of people and nearly a hundred camels where he gave away so much gold that it depressed the price in Egypt for over a decade, causing high inflation. A contemporary Arab historian remarked:", "title": "History" }, { "paragraph_id": 50, "text": "Gold was at a high price in Egypt until they came in that year. The mithqal did not go below 25 dirhams and was generally above, but from that time its value fell and it cheapened in price and has remained cheap till now. The mithqal does not exceed 22 dirhams or less. This has been the state of affairs for about twelve years until this day by reason of the large amount of gold which they brought into Egypt and spent there [...].", "title": "History" }, { "paragraph_id": 51, "text": "The European exploration of the Americas was fueled in no small part by reports of the gold ornaments displayed in great profusion by Native American peoples, especially in Mesoamerica, Peru, Ecuador and Colombia. The Aztecs regarded gold as the product of the gods, calling it literally \"god excrement\" (teocuitlatl in Nahuatl), and after Moctezuma II was killed, most of this gold was shipped to Spain. However, for the indigenous peoples of North America gold was considered useless and they saw much greater value in other minerals which were directly related to their utility, such as obsidian, flint, and slate. El Dorado is applied to a legendary story in which precious stones were found in fabulous abundance along with gold coins. The concept of El Dorado underwent several transformations, and eventually accounts of the previous myth were also combined with those of a legendary lost city. El Dorado, was the term used by the Spanish Empire to describe a mythical tribal chief (zipa) of the Muisca native people in Colombia, who, as an initiation rite, covered himself with gold dust and submerged in Lake Guatavita. The legends surrounding El Dorado changed over time, as it went from being a man, to a city, to a kingdom, and then finally to an empire.", "title": "History" }, { "paragraph_id": 52, "text": "Beginning in the early modern period, European exploration and colonization of West Africa was driven in large part by reports of gold deposits in the region, which was eventually referred to by Europeans as the \"Gold Coast\". From the late 15th to early 19th centuries, European trade in the region was primarily focused in gold, along with ivory and slaves. The gold trade in West Africa was dominated by the Ashanti Empire, who initially traded with the Portuguese before branching out and trading with British, French, Spanish and Danish merchants. British desires to secure control of West African gold deposits played a role in the Anglo-Ashanti wars of the late 19th century, which saw the Ashanti Empire annexed by Britain.", "title": "History" }, { "paragraph_id": 53, "text": "Gold played a role in western culture, as a cause for desire and of corruption, as told in children's fables such as Rumpelstiltskin—where Rumpelstiltskin turns hay into gold for the peasant's daughter in return for her child when she becomes a princess—and the stealing of the hen that lays golden eggs in Jack and the Beanstalk.", "title": "History" }, { "paragraph_id": 54, "text": "The top prize at the Olympic Games and many other sports competitions is the gold medal.", "title": "History" }, { "paragraph_id": 55, "text": "75% of the presently accounted for gold has been extracted since 1910, two-thirds since 1950.", "title": "History" }, { "paragraph_id": 56, "text": "One main goal of the alchemists was to produce gold from other substances, such as lead — presumably by the interaction with a mythical substance called the philosopher's stone. Trying to produce gold led the alchemists to systematically find out what can be done with substances, and this laid the foundation for today's chemistry, which can produce gold (albeit uneconomically) by using nuclear transmutation. Their symbol for gold was the circle with a point at its center (☉), which was also the astrological symbol and the ancient Chinese character for the Sun.", "title": "History" }, { "paragraph_id": 57, "text": "The Dome of the Rock is covered with an ultra-thin golden glassier. The Sikh Golden temple, the Harmandir Sahib, is a building covered with gold. Similarly the Wat Phra Kaew emerald Buddhist temple (wat) in Thailand has ornamental gold-leafed statues and roofs. Some European king and queen's crowns were made of gold, and gold was used for the bridal crown since antiquity. An ancient Talmudic text circa 100 AD describes Rachel, wife of Rabbi Akiva, receiving a \"Jerusalem of Gold\" (diadem). A Greek burial crown made of gold was found in a grave circa 370 BC.", "title": "History" }, { "paragraph_id": 58, "text": "'Gold' is cognate with similar words in many Germanic languages, deriving via Proto-Germanic *gulþą from Proto-Indo-European *ǵʰelh₃- (\"to shine, to gleam; to be yellow or green\").", "title": "History" }, { "paragraph_id": 59, "text": "The symbol Au is from the Latin: aurum, the Latin word for \"gold\". The Proto-Indo-European ancestor of aurum was *h₂é-h₂us-o-, meaning \"glow\". This word is derived from the same root (Proto-Indo-European *h₂u̯es- \"to dawn\") as *h₂éu̯sōs, the ancestor of the Latin word Aurora, \"dawn\". This etymological relationship is presumably behind the frequent claim in scientific publications that aurum meant \"shining dawn\".", "title": "History" }, { "paragraph_id": 60, "text": "", "title": "History" }, { "paragraph_id": 61, "text": "In popular culture gold is a high standard of excellence, often used in awards. Great achievements are frequently rewarded with gold, in the form of gold medals, gold trophies and other decorations. Winners of athletic events and other graded competitions are usually awarded a gold medal. Many awards such as the Nobel Prize are made from gold as well. Other award statues and prizes are depicted in gold or are gold plated (such as the Academy Awards, the Golden Globe Awards, the Emmy Awards, the Palme d'Or, and the British Academy Film Awards).", "title": "History" }, { "paragraph_id": 62, "text": "Aristotle in his ethics used gold symbolism when referring to what is now known as the golden mean. Similarly, gold is associated with perfect or divine principles, such as in the case of the golden ratio and the golden rule. Gold is further associated with the wisdom of aging and fruition. The fiftieth wedding anniversary is golden. A person's most valued or most successful latter years are sometimes considered \"golden years\". The height of a civilization is referred to as a golden age.", "title": "History" }, { "paragraph_id": 63, "text": "The first known prehistoric human usages of gold were religious in nature.", "title": "History" }, { "paragraph_id": 64, "text": "In some forms of Christianity and Judaism, gold has been associated both with the sacred and evil. In the Book of Exodus, the Golden Calf is a symbol of idolatry, while in the Book of Genesis, Abraham was said to be rich in gold and silver, and Moses was instructed to cover the Mercy Seat of the Ark of the Covenant with pure gold. In Byzantine iconography the halos of Christ, Virgin Mary and the saints are often golden.", "title": "History" }, { "paragraph_id": 65, "text": "In Islam, gold (along with silk) is often cited as being forbidden for men to wear. Abu Bakr al-Jazaeri, quoting a hadith, said that \"[t]he wearing of silk and gold are forbidden on the males of my nation, and they are lawful to their women\". This, however, has not been enforced consistently throughout history, e.g. in the Ottoman Empire. Further, small gold accents on clothing, such as in embroidery, may be permitted.", "title": "History" }, { "paragraph_id": 66, "text": "In ancient Greek religion and mythology, Theia was seen as the goddess of gold, silver and other gems.", "title": "History" }, { "paragraph_id": 67, "text": "According to Christopher Columbus, those who had something of gold were in possession of something of great value on Earth and a substance to even help souls to paradise.", "title": "History" }, { "paragraph_id": 68, "text": "Wedding rings are typically made of gold. It is long lasting and unaffected by the passage of time and may aid in the ring symbolism of eternal vows before God and the perfection the marriage signifies. In Orthodox Christian wedding ceremonies, the wedded couple is adorned with a golden crown (though some opt for wreaths, instead) during the ceremony, an amalgamation of symbolic rites.", "title": "History" }, { "paragraph_id": 69, "text": "On 24 August 2020, Israeli archaeologists discovered a trove of early Islamic gold coins near the central city of Yavne. Analysis of the extremely rare collection of 425 gold coins indicated that they were from the late 9th century. Dating to around 1,100 years back, the gold coins were from the Abbasid Caliphate.", "title": "History" }, { "paragraph_id": 70, "text": "According to the United States Geological Survey in 2016, about 5,726,000,000 troy ounces (178,100 t) of gold has been accounted for, of which 85% remains in active use.", "title": "Production" }, { "paragraph_id": 71, "text": "Since the 1880s, South Africa has been the source of a large proportion of the world's gold supply, and about 22% of the gold presently accounted is from South Africa. Production in 1970 accounted for 79% of the world supply, about 1,480 tonnes. In 2007 China (with 276 tonnes) overtook South Africa as the world's largest gold producer, the first time since 1905 that South Africa had not been the largest.", "title": "Production" }, { "paragraph_id": 72, "text": "In 2020, China was the world's leading gold-mining country, followed in order by Russia, Australia, the United States, Canada, and Ghana.", "title": "Production" }, { "paragraph_id": 73, "text": "In South America, the controversial project Pascua Lama aims at exploitation of rich fields in the high mountains of Atacama Desert, at the border between Chile and Argentina.", "title": "Production" }, { "paragraph_id": 74, "text": "It has been estimated that up to one-quarter of the yearly global gold production originates from artisanal or small scale mining.", "title": "Production" }, { "paragraph_id": 75, "text": "The city of Johannesburg located in South Africa was founded as a result of the Witwatersrand Gold Rush which resulted in the discovery of some of the largest natural gold deposits in recorded history. The gold fields are confined to the northern and north-western edges of the Witwatersrand basin, which is a 5–7 km (3.1–4.3 mi) thick layer of archean rocks located, in most places, deep under the Free State, Gauteng and surrounding provinces. These Witwatersrand rocks are exposed at the surface on the Witwatersrand, in and around Johannesburg, but also in isolated patches to the south-east and south-west of Johannesburg, as well as in an arc around the Vredefort Dome which lies close to the center of the Witwatersrand basin. From these surface exposures the basin dips extensively, requiring some of the mining to occur at depths of nearly 4,000 m (13,000 ft), making them, especially the Savuka and TauTona mines to the south-west of Johannesburg, the deepest mines on earth. The gold is found only in six areas where archean rivers from the north and north-west formed extensive pebbly Braided river deltas before draining into the \"Witwatersrand sea\" where the rest of the Witwatersrand sediments were deposited.", "title": "Production" }, { "paragraph_id": 76, "text": "The Second Boer War of 1899–1901 between the British Empire and the Afrikaner Boers was at least partly over the rights of miners and possession of the gold wealth in South Africa.", "title": "Production" }, { "paragraph_id": 77, "text": "During the 19th century, gold rushes occurred whenever large gold deposits were discovered. The first documented discovery of gold in the United States was at the Reed Gold Mine near Georgeville, North Carolina in 1803. The first major gold strike in the United States occurred in a small north Georgia town called Dahlonega. Further gold rushes occurred in California, Colorado, the Black Hills, Otago in New Zealand, a number of locations across Australia, Witwatersrand in South Africa, and the Klondike in Canada.", "title": "Production" }, { "paragraph_id": 78, "text": "Grasberg mine located in Papua, Indonesia is the largest gold mine in the world.", "title": "Production" }, { "paragraph_id": 79, "text": "Gold extraction is most economical in large, easily mined deposits. Ore grades as little as 0.5 parts per million (ppm) can be economical. Typical ore grades in open-pit mines are 1–5 ppm; ore grades in underground or hard rock mines are usually at least 3 ppm. Because ore grades of 30 ppm are usually needed before gold is visible to the naked eye, in most gold mines the gold is invisible.", "title": "Production" }, { "paragraph_id": 80, "text": "The average gold mining and extraction costs were about $317 per troy ounce in 2007, but these can vary widely depending on mining type and ore quality; global mine production amounted to 2,471.1 tonnes.", "title": "Production" }, { "paragraph_id": 81, "text": "After initial production, gold is often subsequently refined industrially by the Wohlwill process which is based on electrolysis or by the Miller process, that is chlorination in the melt. The Wohlwill process results in higher purity, but is more complex and is only applied in small-scale installations. Other methods of assaying and purifying smaller amounts of gold include parting and inquartation as well as cupellation, or refining methods based on the dissolution of gold in aqua regia.", "title": "Production" }, { "paragraph_id": 82, "text": "In 1997, recycled gold accounted for approximately 20% of the 2700 tons of gold supplied to the market. Jewelry companies such as Generation Collection and computer companies including Dell conduct recycling", "title": "Production" }, { "paragraph_id": 83, "text": "As of 2020, the amount of carbon dioxide CO2 produced in mining a kilogram of gold is 16 tonnes, while recycling a kilogram of gold produces 53 kilograms of CO2 equivalent. Approximately 30 percent of the global gold supply is recycled and not mined as of 2020.", "title": "Production" }, { "paragraph_id": 84, "text": "The consumption of gold produced in the world is about 50% in jewelry, 40% in investments, and 10% in industry.", "title": "Production" }, { "paragraph_id": 85, "text": "According to the World Gold Council, China was the world's largest single consumer of gold in 2013, overtaking India.", "title": "Production" }, { "paragraph_id": 86, "text": "Gold production is associated with contribution to hazardous pollution.", "title": "Production" }, { "paragraph_id": 87, "text": "Low-grade gold ore may contain less than one ppm gold metal; such ore is ground and mixed with sodium cyanide to dissolve the gold. Cyanide is a highly poisonous chemical, which can kill living creatures when exposed in minute quantities. Many cyanide spills from gold mines have occurred in both developed and developing countries which killed aquatic life in long stretches of affected rivers. Environmentalists consider these events major environmental disasters. Up to thirty tons of used ore can be dumped as waste for producing one troy ounce of gold. Gold ore dumps are the source of many heavy elements such as cadmium, lead, zinc, copper, arsenic, selenium and mercury. When sulfide-bearing minerals in these ore dumps are exposed to air and water, the sulfide transforms into sulfuric acid which in turn dissolves these heavy metals facilitating their passage into surface water and ground water. This process is called acid mine drainage. These gold ore dumps contain long-term, highly hazardous waste.", "title": "Production" }, { "paragraph_id": 88, "text": "It was once common to use mercury to recover gold from ore, but today the use of mercury is largely limited to small-scale individual miners. Minute quantities of mercury compounds can reach water bodies, causing heavy metal contamination. Mercury can then enter into the human food chain in the form of methylmercury. Mercury poisoning in humans causes incurable brain function damage and severe retardation.", "title": "Production" }, { "paragraph_id": 89, "text": "Gold extraction is also a highly energy-intensive industry, extracting ore from deep mines and grinding the large quantity of ore for further chemical extraction requires nearly 25 kWh of electricity per gram of gold produced.", "title": "Production" }, { "paragraph_id": 90, "text": "Gold has been widely used throughout the world as money, for efficient indirect exchange (versus barter), and to store wealth in hoards. For exchange purposes, mints produce standardized gold bullion coins, bars and other units of fixed weight and purity.", "title": "Monetary use" }, { "paragraph_id": 91, "text": "The first known coins containing gold were struck in Lydia, Asia Minor, around 600 BC. The talent coin of gold in use during the periods of Grecian history both before and during the time of the life of Homer weighed between 8.42 and 8.75 grams. From an earlier preference in using silver, European economies re-established the minting of gold as coinage during the thirteenth and fourteenth centuries.", "title": "Monetary use" }, { "paragraph_id": 92, "text": "Bills (that mature into gold coin) and gold certificates (convertible into gold coin at the issuing bank) added to the circulating stock of gold standard money in most 19th century industrial economies. In preparation for World War I the warring nations moved to fractional gold standards, inflating their currencies to finance the war effort. Post-war, the victorious countries, most notably Britain, gradually restored gold-convertibility, but international flows of gold via bills of exchange remained embargoed; international shipments were made exclusively for bilateral trades or to pay war reparations.", "title": "Monetary use" }, { "paragraph_id": 93, "text": "After World War II gold was replaced by a system of nominally convertible currencies related by fixed exchange rates following the Bretton Woods system. Gold standards and the direct convertibility of currencies to gold have been abandoned by world governments, led in 1971 by the United States' refusal to redeem its dollars in gold. Fiat currency now fills most monetary roles. Switzerland was the last country to tie its currency to gold; this was ended by a referendum in 1999.", "title": "Monetary use" }, { "paragraph_id": 94, "text": "Central banks continue to keep a portion of their liquid reserves as gold in some form, and metals exchanges such as the London Bullion Market Association still clear transactions denominated in gold, including future delivery contracts. Today, gold mining output is declining. With the sharp growth of economies in the 20th century, and increasing foreign exchange, the world's gold reserves and their trading market have become a small fraction of all markets and fixed exchange rates of currencies to gold have been replaced by floating prices for gold and gold future contract. Though the gold stock grows by only 1% or 2% per year, very little metal is irretrievably consumed. Inventory above ground would satisfy many decades of industrial and even artisan uses at current prices.", "title": "Monetary use" }, { "paragraph_id": 95, "text": "The gold proportion (fineness) of alloys is measured by karat (k). Pure gold (commercially termed fine gold) is designated as 24 karat, abbreviated 24k. English gold coins intended for circulation from 1526 into the 1930s were typically a standard 22k alloy called crown gold, for hardness (American gold coins for circulation after 1837 contain an alloy of 0.900 fine gold, or 21.6 kt).", "title": "Monetary use" }, { "paragraph_id": 96, "text": "Although the prices of some platinum group metals can be much higher, gold has long been considered the most desirable of precious metals, and its value has been used as the standard for many currencies. Gold has been used as a symbol for purity, value, royalty, and particularly roles that combine these properties. Gold as a sign of wealth and prestige was ridiculed by Thomas More in his treatise Utopia. On that imaginary island, gold is so abundant that it is used to make chains for slaves, tableware, and lavatory seats. When ambassadors from other countries arrive, dressed in ostentatious gold jewels and badges, the Utopians mistake them for menial servants, paying homage instead to the most modestly dressed of their party.", "title": "Monetary use" }, { "paragraph_id": 97, "text": "The ISO 4217 currency code of gold is XAU. Many holders of gold store it in form of bullion coins or bars as a hedge against inflation or other economic disruptions, though its efficacy as such has been questioned; historically, it has not proven itself reliable as a hedging instrument. Modern bullion coins for investment or collector purposes do not require good mechanical wear properties; they are typically fine gold at 24k, although the American Gold Eagle and the British gold sovereign continue to be minted in 22k (0.92) metal in historical tradition, and the South African Krugerrand, first released in 1967, is also 22k (0.92).", "title": "Monetary use" }, { "paragraph_id": 98, "text": "The special issue Canadian Gold Maple Leaf coin contains the highest purity gold of any bullion coin, at 99.999% or 0.99999, while the popular issue Canadian Gold Maple Leaf coin has a purity of 99.99%. In 2006, the United States Mint began producing the American Buffalo gold bullion coin with a purity of 99.99%. The Australian Gold Kangaroos were first coined in 1986 as the Australian Gold Nugget but changed the reverse design in 1989. Other modern coins include the Austrian Vienna Philharmonic bullion coin and the Chinese Gold Panda.", "title": "Monetary use" }, { "paragraph_id": 99, "text": "Like other precious metals, gold is measured by troy weight and by grams. The proportion of gold in the alloy is measured by karat (k), with 24 karat (24k) being pure gold (100%), and lower karat numbers proportionally less (18k = 75%). The purity of a gold bar or coin can also be expressed as a decimal figure ranging from 0 to 1, known as the millesimal fineness, such as 0.995 being nearly pure.", "title": "Monetary use" }, { "paragraph_id": 100, "text": "The price of gold is determined through trading in the gold and derivatives markets, but a procedure known as the Gold Fixing in London, originating in September 1919, provides a daily benchmark price to the industry. The afternoon fixing was introduced in 1968 to provide a price when US markets are open. As of September 2017, gold was valued at around $42 per gram ($1,300 per troy ounce).", "title": "Monetary use" }, { "paragraph_id": 101, "text": "Historically gold coinage was widely used as currency; when paper money was introduced, it typically was a receipt redeemable for gold coin or bullion. In a monetary system known as the gold standard, a certain weight of gold was given the name of a unit of currency. For a long period, the United States government set the value of the US dollar so that one troy ounce was equal to $20.67 ($0.665 per gram), but in 1934 the dollar was devalued to $35.00 per troy ounce ($0.889/g). By 1961, it was becoming hard to maintain this price, and a pool of US and European banks agreed to manipulate the market to prevent further currency devaluation against increased gold demand.", "title": "Monetary use" }, { "paragraph_id": 102, "text": "The largest gold depository in the world is that of the U.S. Federal Reserve Bank in New York, which holds about 3% of the gold known to exist and accounted for today, as does the similarly laden U.S. Bullion Depository at Fort Knox. In 2005 the World Gold Council estimated total global gold supply to be 3,859 tonnes and demand to be 3,754 tonnes, giving a surplus of 105 tonnes.", "title": "Monetary use" }, { "paragraph_id": 103, "text": "After 15 August 1971 Nixon shock, the price began to greatly increase, and between 1968 and 2000 the price of gold ranged widely, from a high of $850 per troy ounce ($27.33/g) on 21 January 1980, to a low of $252.90 per troy ounce ($8.13/g) on 21 June 1999 (London Gold Fixing). Prices increased rapidly from 2001, but the 1980 high was not exceeded until 3 January 2008, when a new maximum of $865.35 per troy ounce was set. Another record price was set on 17 March 2008, at $1023.50 per troy ounce ($32.91/g).", "title": "Monetary use" }, { "paragraph_id": 104, "text": "On 2 December 2009, gold reached a new high closing at $1,217.23. Gold further rallied hitting new highs in May 2010 after the European Union debt crisis prompted further purchase of gold as a safe asset. On 1 March 2011, gold hit a new all-time high of $1432.57, based on investor concerns regarding ongoing unrest in North Africa as well as in the Middle East.", "title": "Monetary use" }, { "paragraph_id": 105, "text": "From April 2001 to August 2011, spot gold prices more than quintupled in value against the US dollar, hitting a new all-time high of $1,913.50 on 23 August 2011, prompting speculation that the long secular bear market had ended and a bull market had returned. However, the price then began a slow decline towards $1200 per troy ounce in late 2014 and 2015.", "title": "Monetary use" }, { "paragraph_id": 106, "text": "In August 2020, the gold price picked up to US$2060 per ounce after a total growth of 59% from August 2018 to October 2020, a period during which it outplaced the Nasdaq total return of 54%.", "title": "Monetary use" }, { "paragraph_id": 107, "text": "Gold futures are traded on the COMEX exchange. These contacts are priced in USD per troy ounce (1 troy ounce = 31.1034768 grams). Below are the CQG contract specifications outlining the futures contracts:", "title": "Monetary use" }, { "paragraph_id": 108, "text": "Because of the softness of pure (24k) gold, it is usually alloyed with other metals for use in jewelry, altering its hardness and ductility, melting point, color and other properties. Alloys with lower karat rating, typically 22k, 18k, 14k or 10k, contain higher percentages of copper, silver, palladium or other base metals in the alloy. Nickel is toxic, and its release from nickel white gold is controlled by legislation in Europe. Palladium-gold alloys are more expensive than those using nickel. High-karat white gold alloys are more resistant to corrosion than are either pure silver or sterling silver. The Japanese craft of Mokume-gane exploits the color contrasts between laminated colored gold alloys to produce decorative wood-grain effects.", "title": "Other applications" }, { "paragraph_id": 109, "text": "By 2014, the gold jewelry industry was escalating despite a dip in gold prices. Demand in the first quarter of 2014 pushed turnover to $23.7 billion according to a World Gold Council report.", "title": "Other applications" }, { "paragraph_id": 110, "text": "Gold solder is used for joining the components of gold jewelry by high-temperature hard soldering or brazing. If the work is to be of hallmarking quality, the gold solder alloy must match the fineness of the work, and alloy formulas are manufactured to color-match yellow and white gold. Gold solder is usually made in at least three melting-point ranges referred to as Easy, Medium and Hard. By using the hard, high-melting point solder first, followed by solders with progressively lower melting points, goldsmiths can assemble complex items with several separate soldered joints. Gold can also be made into thread and used in embroidery.", "title": "Other applications" }, { "paragraph_id": 111, "text": "Only 10% of the world consumption of new gold produced goes to industry, but by far the most important industrial use for new gold is in fabrication of corrosion-free electrical connectors in computers and other electrical devices. For example, according to the World Gold Council, a typical cell phone may contain 50 mg of gold, worth about 2 dollars 82 cents. But since nearly one billion cell phones are produced each year, a gold value of US$2.82 in each phone adds to US$2.82 billion in gold from just this application. (Prices updated to November 2022)", "title": "Other applications" }, { "paragraph_id": 112, "text": "Though gold is attacked by free chlorine, its good conductivity and general resistance to oxidation and corrosion in other environments (including resistance to non-chlorinated acids) has led to its widespread industrial use in the electronic era as a thin-layer coating on electrical connectors, thereby ensuring good connection. For example, gold is used in the connectors of the more expensive electronics cables, such as audio, video and USB cables. The benefit of using gold over other connector metals such as tin in these applications has been debated; gold connectors are often criticized by audio-visual experts as unnecessary for most consumers and seen as simply a marketing ploy. However, the use of gold in other applications in electronic sliding contacts in highly humid or corrosive atmospheres, and in use for contacts with a very high failure cost (certain computers, communications equipment, spacecraft, jet aircraft engines) remains very common.", "title": "Other applications" }, { "paragraph_id": 113, "text": "Besides sliding electrical contacts, gold is also used in electrical contacts because of its resistance to corrosion, electrical conductivity, ductility and lack of toxicity. Switch contacts are generally subjected to more intense corrosion stress than are sliding contacts. Fine gold wires are used to connect semiconductor devices to their packages through a process known as wire bonding.", "title": "Other applications" }, { "paragraph_id": 114, "text": "The concentration of free electrons in gold metal is 5.91×10 cm. Gold is highly conductive to electricity and has been used for electrical wiring in some high-energy applications (only silver and copper are more conductive per volume, but gold has the advantage of corrosion resistance). For example, gold electrical wires were used during some of the Manhattan Project's atomic experiments, but large high-current silver wires were used in the calutron isotope separator magnets in the project.", "title": "Other applications" }, { "paragraph_id": 115, "text": "It is estimated that 16% of the world's presently-accounted-for gold and 22% of the world's silver is contained in electronic technology in Japan.", "title": "Other applications" }, { "paragraph_id": 116, "text": "Metallic and gold compounds have long been used for medicinal purposes. Gold, usually as the metal, is perhaps the most anciently administered medicine (apparently by shamanic practitioners) and known to Dioscorides. In medieval times, gold was often seen as beneficial for the health, in the belief that something so rare and beautiful could not be anything but healthy. Even some modern esotericists and forms of alternative medicine assign metallic gold a healing power.", "title": "Other applications" }, { "paragraph_id": 117, "text": "In the 19th century gold had a reputation as an anxiolytic, a therapy for nervous disorders. Depression, epilepsy, migraine, and glandular problems such as amenorrhea and impotence were treated, and most notably alcoholism (Keeley, 1897).", "title": "Other applications" }, { "paragraph_id": 118, "text": "The apparent paradox of the actual toxicology of the substance suggests the possibility of serious gaps in the understanding of the action of gold in physiology. Only salts and radioisotopes of gold are of pharmacological value, since elemental (metallic) gold is inert to all chemicals it encounters inside the body (e.g., ingested gold cannot be attacked by stomach acid). Some gold salts do have anti-inflammatory properties and at present two are still used as pharmaceuticals in the treatment of arthritis and other similar conditions in the US (sodium aurothiomalate and auranofin). These drugs have been explored as a means to help to reduce the pain and swelling of rheumatoid arthritis, and also (historically) against tuberculosis and some parasites.", "title": "Other applications" }, { "paragraph_id": 119, "text": "Gold alloys are used in restorative dentistry, especially in tooth restorations, such as crowns and permanent bridges. The gold alloys' slight malleability facilitates the creation of a superior molar mating surface with other teeth and produces results that are generally more satisfactory than those produced by the creation of porcelain crowns. The use of gold crowns in more prominent teeth such as incisors is favored in some cultures and discouraged in others.", "title": "Other applications" }, { "paragraph_id": 120, "text": "Colloidal gold preparations (suspensions of gold nanoparticles) in water are intensely red-colored, and can be made with tightly controlled particle sizes up to a few tens of nanometers across by reduction of gold chloride with citrate or ascorbate ions. Colloidal gold is used in research applications in medicine, biology and materials science. The technique of immunogold labeling exploits the ability of the gold particles to adsorb protein molecules onto their surfaces. Colloidal gold particles coated with specific antibodies can be used as probes for the presence and position of antigens on the surfaces of cells. In ultrathin sections of tissues viewed by electron microscopy, the immunogold labels appear as extremely dense round spots at the position of the antigen.", "title": "Other applications" }, { "paragraph_id": 121, "text": "Gold, or alloys of gold and palladium, are applied as conductive coating to biological specimens and other non-conducting materials such as plastics and glass to be viewed in a scanning electron microscope. The coating, which is usually applied by sputtering with an argon plasma, has a triple role in this application. Gold's very high electrical conductivity drains electrical charge to earth, and its very high density provides stopping power for electrons in the electron beam, helping to limit the depth to which the electron beam penetrates the specimen. This improves definition of the position and topography of the specimen surface and increases the spatial resolution of the image. Gold also produces a high output of secondary electrons when irradiated by an electron beam, and these low-energy electrons are the most commonly used signal source used in the scanning electron microscope.", "title": "Other applications" }, { "paragraph_id": 122, "text": "The isotope gold-198 (half-life 2.7 days) is used in nuclear medicine, in some cancer treatments and for treating other diseases.", "title": "Other applications" }, { "paragraph_id": 123, "text": "Pure metallic (elemental) gold is non-toxic and non-irritating when ingested and is sometimes used as a food decoration in the form of gold leaf. Metallic gold is also a component of the alcoholic drinks Goldschläger, Gold Strike, and Goldwasser. Metallic gold is approved as a food additive in the EU (E175 in the Codex Alimentarius). Although the gold ion is toxic, the acceptance of metallic gold as a food additive is due to its relative chemical inertness, and resistance to being corroded or transformed into soluble salts (gold compounds) by any known chemical process which would be encountered in the human body.", "title": "Toxicity" }, { "paragraph_id": 124, "text": "Soluble compounds (gold salts) such as gold chloride are toxic to the liver and kidneys. Common cyanide salts of gold such as potassium gold cyanide, used in gold electroplating, are toxic by virtue of both their cyanide and gold content. There are rare cases of lethal gold poisoning from potassium gold cyanide. Gold toxicity can be ameliorated with chelation therapy with an agent such as dimercaprol.", "title": "Toxicity" }, { "paragraph_id": 125, "text": "Gold metal was voted Allergen of the Year in 2001 by the American Contact Dermatitis Society; gold contact allergies affect mostly women. Despite this, gold is a relatively non-potent contact allergen, in comparison with metals like nickel.", "title": "Toxicity" }, { "paragraph_id": 126, "text": "A sample of the fungus Aspergillus niger was found growing from gold mining solution; and was found to contain cyano metal complexes, such as gold, silver, copper, iron and zinc. The fungus also plays a role in the solubilization of heavy metal sulfides.", "title": "Toxicity" } ]
Gold is a chemical element; it has symbol Au and atomic number 79. In pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental, as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver, naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium. Gold is resistant to most acids, though it does dissolve in aqua regia, forming a soluble tetrachloroaurate anion. Gold is insoluble in nitric acid alone, which dissolves silver and base metals, a property long used to refine gold and confirm the presence of gold in metallic substances, giving rise to the term 'acid test'. Gold dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. Gold also dissolves in mercury, forming amalgam alloys, and as the gold acts simply as a solute, this is not a chemical reaction. A relatively rare element, gold is a precious metal that has been used for coinage, jewelry, and other work of art throughout recorded history. In the past, a gold standard was often implemented as a monetary policy. Gold coins ceased to be minted as a circulating currency in the 1930s, and the world gold standard was abandoned for a fiat currency system after the Nixon shock measures of 1971. In 2020, the world's largest gold producer was China, followed by Russia and Australia. A total of around 201,296 tonnes of gold exists above ground, as of 2020. This is equal to a cube with each side measuring roughly 21.7 meters (71 ft). The world's consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold's high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity have led to its continued use in corrosion-resistant electrical connectors in all types of computerized devices. Gold is also used in infrared shielding, the production of colored glass, gold leafing, and tooth restoration. Certain gold salts are still used as anti-inflammatories in medicine.
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https://en.wikipedia.org/wiki/Gold
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Gallium
Gallium is a chemical element; it has symbol Ga and atomic number 31. Discovered by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875, gallium is in group 13 of the periodic table and is similar to the other metals of the group (aluminium, indium, and thallium). Elemental gallium is a relatively soft, silvery metal at standard temperature and pressure. In its liquid state, it becomes silvery white. If enough force is applied, solid gallium may fracture conchoidally. Since its discovery in 1875, gallium has widely been used to make alloys with low melting points. It is also used in semiconductors, as a dopant in semiconductor substrates. The melting point of gallium is used as a temperature reference point. Gallium alloys are used in thermometers as a non-toxic and environmentally friendly alternative to mercury, and can withstand higher temperatures than mercury. An even lower melting point of −19 °C (−2 °F), well below the freezing point of water, is claimed for the alloy galinstan (62–95% gallium, 5–22% indium, and 0–16% tin by weight), but that may be the freezing point with the effect of supercooling. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores (such as sphalerite) and in bauxite. Elemental gallium is a liquid at temperatures greater than 29.76 °C (85.57 °F), and will melt in a person's hands at normal human body temperature of 37.0 °C (98.6 °F). Gallium is predominantly used in electronics. Gallium arsenide, the primary chemical compound of gallium in electronics, is used in microwave circuits, high-speed switching circuits, and infrared circuits. Semiconducting gallium nitride and indium gallium nitride produce blue and violet light-emitting diodes and diode lasers. Gallium is also used in the production of artificial gadolinium gallium garnet for jewelry. Gallium is considered a technology-critical element by the United States National Library of Medicine and Frontiers Media. Gallium has no known natural role in biology. Gallium(III) behaves in a similar manner to ferric salts in biological systems and has been used in some medical applications, including pharmaceuticals and radiopharmaceuticals. Elemental gallium is not found in nature, but it is easily obtained by smelting. Very pure gallium is a silvery blue metal that fractures conchoidally like glass. Gallium liquid expands by 3.10% when it solidifies; therefore, it should not be stored in glass or metal containers because the container may rupture when the gallium changes state. Gallium shares the higher-density liquid state with a short list of other materials that includes water, silicon, germanium, bismuth, and plutonium. Gallium forms alloys with most metals. It readily diffuses into cracks or grain boundaries of some metals such as aluminium, aluminium–zinc alloys and steel, causing extreme loss of strength and ductility called liquid metal embrittlement. The melting point of gallium, at 302.9146 K (29.7646 °C, 85.5763 °F), is just above room temperature, and is approximately the same as the average summer daytime temperatures in Earth's mid-latitudes. This melting point (mp) is one of the formal temperature reference points in the International Temperature Scale of 1990 (ITS-90) established by the International Bureau of Weights and Measures (BIPM). The triple point of gallium, 302.9166 K (29.7666 °C, 85.5799 °F), is used by the US National Institute of Standards and Technology (NIST) in preference to the melting point. The melting point of gallium allows it to melt in the human hand, and then solidify if removed. The liquid metal has a strong tendency to supercool below its melting point/freezing point: Ga nanoparticles can be kept in the liquid state below 90 K. Seeding with a crystal helps to initiate freezing. Gallium is one of the four non-radioactive metals (with caesium, rubidium, and mercury) that are known to be liquid at, or near, normal room temperature. Of the four, gallium is the only one that is neither highly reactive (as are rubidium and caesium) nor highly toxic (as is mercury) and can, therefore, be used in metal-in-glass high-temperature thermometers. It is also notable for having one of the largest liquid ranges for a metal, and for having (unlike mercury) a low vapor pressure at high temperatures. Gallium's boiling point, 2676 K, is nearly nine times higher than its melting point on the absolute scale, the greatest ratio between melting point and boiling point of any element. Unlike mercury, liquid gallium metal wets glass and skin, along with most other materials (with the exceptions of quartz, graphite, gallium(III) oxide and PTFE), making it mechanically more difficult to handle even though it is substantially less toxic and requires far fewer precautions than mercury. Gallium painted onto glass is a brilliant mirror. For this reason as well as the metal contamination and freezing-expansion problems, samples of gallium metal are usually supplied in polyethylene packets within other containers. Gallium does not crystallize in any of the simple crystal structures. The stable phase under normal conditions is orthorhombic with 8 atoms in the conventional unit cell. Within a unit cell, each atom has only one nearest neighbor (at a distance of 244 pm). The remaining six unit cell neighbors are spaced 27, 30 and 39 pm farther away, and they are grouped in pairs with the same distance. Many stable and metastable phases are found as function of temperature and pressure. The bonding between the two nearest neighbors is covalent; hence Ga2 dimers are seen as the fundamental building blocks of the crystal. This explains the low melting point relative to the neighbor elements, aluminium and indium. This structure is strikingly similar to that of iodine and may form because of interactions between the single 4p electrons of gallium atoms, further away from the nucleus than the 4s electrons and the [Ar]3d core. This phenomenon recurs with mercury with its "pseudo-noble-gas" [Xe]4f5d6s electron configuration, which is liquid at room temperature. The 3d electrons do not shield the outer electrons very well from the nucleus and hence the first ionisation energy of gallium is greater than that of aluminium. Ga2 dimers do not persist in the liquid state and liquid gallium exhibits a complex low-coordinated structure in which each gallium atom is surrounded by 10 others, rather than 11–12 neighbors typical of most liquid metals. The physical properties of gallium are highly anisotropic, i.e. have different values along the three major crystallographic axes a, b, and c (see table), producing a significant difference between the linear (α) and volume thermal expansion coefficients. The properties of gallium are strongly temperature-dependent, particularly near the melting point. For example, the coefficient of thermal expansion increases by several hundred percent upon melting. Gallium has 31 known isotopes, ranging in mass number from 56 to 86. Only two isotopes are stable and occur naturally, gallium-69 and gallium-71. Gallium-69 is more abundant: it makes up about 60.1% of natural gallium, while gallium-71 makes up the remaining 39.9%. All the other isotopes are radioactive, with gallium-67 being the longest-lived (half-life 3.261 days). Isotopes lighter than gallium-69 usually decay through beta plus decay (positron emission) or electron capture to isotopes of zinc, although the lightest few (mass numbers 56–59) decay through prompt proton emission. Isotopes heavier than gallium-71 decay through beta minus decay (electron emission), possibly with delayed neutron emission, to isotopes of germanium, while gallium-70 can decay through both beta minus decay and electron capture. Gallium-67 is unique among the light isotopes in having only electron capture as a decay mode, as its decay energy is not sufficient to allow positron emission. Gallium-67 and gallium-68 (half-life 67.7 min) are both used in nuclear medicine. Gallium is found primarily in the +3 oxidation state. The +1 oxidation state is also found in some compounds, although it is less common than it is for gallium's heavier congeners indium and thallium. For example, the very stable GaCl2 contains both gallium(I) and gallium(III) and can be formulated as GaGaCl4; in contrast, the monochloride is unstable above 0 °C, disproportionating into elemental gallium and gallium(III) chloride. Compounds containing Ga–Ga bonds are true gallium(II) compounds, such as GaS (which can be formulated as Ga2(S)2) and the dioxan complex Ga2Cl4(C4H8O2)2. Strong acids dissolve gallium, forming gallium(III) salts such as Ga(NO3)3 (gallium nitrate). Aqueous solutions of gallium(III) salts contain the hydrated gallium ion, [Ga(H2O)6]. Gallium(III) hydroxide, Ga(OH)3, may be precipitated from gallium(III) solutions by adding ammonia. Dehydrating Ga(OH)3 at 100 °C produces gallium oxide hydroxide, GaO(OH). Alkaline hydroxide solutions dissolve gallium, forming gallate salts (not to be confused with identically named gallic acid salts) containing the Ga(OH)4 anion. Gallium hydroxide, which is amphoteric, also dissolves in alkali to form gallate salts. Although earlier work suggested Ga(OH)6 as another possible gallate anion, it was not found in later work. Gallium reacts with the chalcogens only at relatively high temperatures. At room temperature, gallium metal is not reactive with air and water because it forms a passive, protective oxide layer. At higher temperatures, however, it reacts with atmospheric oxygen to form gallium(III) oxide, Ga2O3. Reducing Ga2O3 with elemental gallium in vacuum at 500 °C to 700 °C yields the dark brown gallium(I) oxide, Ga2O. Ga2O is a very strong reducing agent, capable of reducing H2SO4 to H2S. It disproportionates at 800 °C back to gallium and Ga2O3. Gallium(III) sulfide, Ga2S3, has 3 possible crystal modifications. It can be made by the reaction of gallium with hydrogen sulfide (H2S) at 950 °C. Alternatively, Ga(OH)3 can be used at 747 °C: Reacting a mixture of alkali metal carbonates and Ga2O3 with H2S leads to the formation of thiogallates containing the [Ga2S4] anion. Strong acids decompose these salts, releasing H2S in the process. The mercury salt, HgGa2S4, can be used as a phosphor. Gallium also forms sulfides in lower oxidation states, such as gallium(II) sulfide and the green gallium(I) sulfide, the latter of which is produced from the former by heating to 1000 °C under a stream of nitrogen. The other binary chalcogenides, Ga2Se3 and Ga2Te3, have the zincblende structure. They are all semiconductors but are easily hydrolysed and have limited utility. Gallium reacts with ammonia at 1050 °C to form gallium nitride, GaN. Gallium also forms binary compounds with phosphorus, arsenic, and antimony: gallium phosphide (GaP), gallium arsenide (GaAs), and gallium antimonide (GaSb). These compounds have the same structure as ZnS, and have important semiconducting properties. GaP, GaAs, and GaSb can be synthesized by the direct reaction of gallium with elemental phosphorus, arsenic, or antimony. They exhibit higher electrical conductivity than GaN. GaP can also be synthesized by reacting Ga2O with phosphorus at low temperatures. Gallium forms ternary nitrides; for example: Similar compounds with phosphorus and arsenic are possible: Li3GaP2 and Li3GaAs2. These compounds are easily hydrolyzed by dilute acids and water. Gallium(III) oxide reacts with fluorinating agents such as HF or F2 to form gallium(III) fluoride, GaF3. It is an ionic compound strongly insoluble in water. However, it dissolves in hydrofluoric acid, in which it forms an adduct with water, GaF3·3H2O. Attempting to dehydrate this adduct forms GaF2OH·nH2O. The adduct reacts with ammonia to form GaF3·3NH3, which can then be heated to form anhydrous GaF3. Gallium trichloride is formed by the reaction of gallium metal with chlorine gas. Unlike the trifluoride, gallium(III) chloride exists as dimeric molecules, Ga2Cl6, with a melting point of 78 °C. Eqivalent compounds are formed with bromine and iodine, Ga2Br6 and Ga2I6. Like the other group 13 trihalides, gallium(III) halides are Lewis acids, reacting as halide acceptors with alkali metal halides to form salts containing GaX4 anions, where X is a halogen. They also react with alkyl halides to form carbocations and GaX4. When heated to a high temperature, gallium(III) halides react with elemental gallium to form the respective gallium(I) halides. For example, GaCl3 reacts with Ga to form GaCl: At lower temperatures, the equilibrium shifts toward the left and GaCl disproportionates back to elemental gallium and GaCl3. GaCl can also be produced by reacting Ga with HCl at 950 °C; the product can be condensed as a red solid. Gallium(I) compounds can be stabilized by forming adducts with Lewis acids. For example: The so-called "gallium(II) halides", GaX2, are actually adducts of gallium(I) halides with the respective gallium(III) halides, having the structure Ga[GaX4]. For example: Like aluminium, gallium also forms a hydride, GaH3, known as gallane, which may be produced by reacting lithium gallanate (LiGaH4) with gallium(III) chloride at −30 °C: In the presence of dimethyl ether as solvent, GaH3 polymerizes to (GaH3)n. If no solvent is used, the dimer Ga2H6 (digallane) is formed as a gas. Its structure is similar to diborane, having two hydrogen atoms bridging the two gallium centers, unlike α-AlH3 in which aluminium has a coordination number of 6. Gallane is unstable above −10 °C, decomposing to elemental gallium and hydrogen. Organogallium compounds are of similar reactivity to organoindium compounds, less reactive than organoaluminium compounds, but more reactive than organothallium compounds. Alkylgalliums are monomeric. Lewis acidity decreases in the order Al > Ga > In and as a result organogallium compounds do not form bridged dimers as organoaluminium compounds do. Organogallium compounds are also less reactive than organoaluminium compounds. They do form stable peroxides. These alkylgalliums are liquids at room temperature, having low melting points, and are quite mobile and flammable. Triphenylgallium is monomeric in solution, but its crystals form chain structures due to weak intermolecluar Ga···C interactions. Gallium trichloride is a common starting reagent for the formation of organogallium compounds, such as in carbogallation reactions. Gallium trichloride reacts with lithium cyclopentadienide in diethyl ether to form the trigonal planar gallium cyclopentadienyl complex GaCp3. Gallium(I) forms complexes with arene ligands such as hexamethylbenzene. Because this ligand is quite bulky, the structure of the [Ga(η-C6Me6)] is that of a half-sandwich. Less bulky ligands such as mesitylene allow two ligands to be attached to the central gallium atom in a bent sandwich structure. Benzene is even less bulky and allows the formation of dimers: an example is [Ga(η-C6H6)2] [GaCl4]·3C6H6. In 1871, the existence of gallium was first predicted by Russian chemist Dmitri Mendeleev, who named it "eka-aluminium" from its position in his periodic table. He also predicted several properties of eka-aluminium that correspond closely to the real properties of gallium, such as its density, melting point, oxide character, and bonding in chloride. Mendeleev further predicted that eka-aluminium would be discovered by means of the spectroscope, and that metallic eka-aluminium would dissolve slowly in both acids and alkalis and would not react with air. He also predicted that M2O3 would dissolve in acids to give MX3 salts, that eka-aluminium salts would form basic salts, that eka-aluminium sulfate should form alums, and that anhydrous MCl3 should have a greater volatility than ZnCl2: all of these predictions turned out to be true. Gallium was discovered using spectroscopy by French chemist Paul Emile Lecoq de Boisbaudran in 1875 from its characteristic spectrum (two violet lines) in a sample of sphalerite. Later that year, Lecoq obtained the free metal by electrolysis of the hydroxide in potassium hydroxide solution. He named the element "gallia", from Latin Gallia meaning Gaul, after his native land of France. It was later claimed that, in a multilingual pun of a kind favoured by men of science in the 19th century, he had also named gallium after himself: Le coq is French for "the rooster", and the Latin word for "rooster" is gallus. In an 1877 article, Lecoq denied this conjecture. Originally, de Boisbaudran determined the density of gallium as 4.7 g/cm, the only property that failed to match Mendeleev's predictions; Mendeleev then wrote to him and suggested that he should remeasure the density, and de Boisbaudran then obtained the correct value of 5.9 g/cm, that Mendeleev had predicted exactly. From its discovery in 1875 until the era of semiconductors, the primary uses of gallium were high-temperature thermometrics and metal alloys with unusual properties of stability or ease of melting (some such being liquid at room temperature). The development of gallium arsenide as a direct bandgap semiconductor in the 1960s ushered in the most important stage in the applications of gallium. In the late 1960s, the electronics industry started using gallium on a commercial scale to fabricate light emitting diodes, photovoltaics and semiconductors, while the metals industry used it to reduce the melting point of alloys. Gallium does not exist as a free element in the Earth's crust, and the few high-content minerals, such as gallite (CuGaS2), are too rare to serve as a primary source. The abundance in the Earth's crust is approximately 16.9 ppm. This is comparable to the crustal abundances of lead, cobalt, and niobium. Yet unlike these elements, gallium does not form its own ore deposits with concentrations of > 0.1 wt.% in ore. Rather it occurs at trace concentrations similar to the crustal value in zinc ores, and at somewhat higher values (~ 50 ppm) in aluminium ores, from both of which it is extracted as a by-product. This lack of independent deposits is due to gallium's geochemical behaviour, showing no strong enrichment in the processes relevant to the formation of most ore deposits. The United States Geological Survey (USGS) estimates that more than 1 million tons of gallium is contained in known reserves of bauxite and zinc ores. Some coal flue dusts contain small quantities of gallium, typically less than 1% by weight. However, these amounts are not extractable without mining of the host materials (see below). Thus, the availability of gallium is fundamentally determined by the rate at which bauxite, zinc ores, and coal are extracted. Gallium is produced exclusively as a by-product during the processing of the ores of other metals. Its main source material is bauxite, the chief ore of aluminium, but minor amounts are also extracted from sulfidic zinc ores (sphalerite being the main host mineral). In the past, certain coals were an important source. During the processing of bauxite to alumina in the Bayer process, gallium accumulates in the sodium hydroxide liquor. From this it can be extracted by a variety of methods. The most recent is the use of ion-exchange resin. Achievable extraction efficiencies critically depend on the original concentration in the feed bauxite. At a typical feed concentration of 50 ppm, about 15% of the contained gallium is extractable. The remainder reports to the red mud and aluminium hydroxide streams. Gallium is removed from the ion-exchange resin in solution. Electrolysis then gives gallium metal. For semiconductor use, it is further purified with zone melting or single-crystal extraction from a melt (Czochralski process). Purities of 99.9999% are routinely achieved and commercially available. Its by-product status means that gallium production is constrained by the amount of bauxite, sulfidic zinc ores (and coal) extracted per year. Therefore, its availability needs to be discussed in terms of supply potential. The supply potential of a by-product is defined as that amount which is economically extractable from its host materials per year under current market conditions (i.e. technology and price). Reserves and resources are not relevant for by-products, since they cannot be extracted independently from the main-products. Recent estimates put the supply potential of gallium at a minimum of 2,100 t/yr from bauxite, 85 t/yr from sulfidic zinc ores, and potentially 590 t/yr from coal. These figures are significantly greater than current production (375 t in 2016). Thus, major future increases in the by-product production of gallium will be possible without significant increases in production costs or price. The average price for low-grade gallium was $120 per kilogram in 2016 and $135–140 per kilogram in 2017. In 2017, the world's production of low-grade gallium was c. 315 tons—an increase of 15% from 2016. China, Japan, South Korea, Russia, and Ukraine were the leading producers, while Germany ceased primary production of gallium in 2016. The yield of high-purity gallium was ca. 180 tons, mostly originating from China, Japan, Slovakia, UK and U.S. The 2017 world annual production capacity was estimated at 730 tons for low-grade and 320 tons for refined gallium. China produced c. 250 tons of low-grade gallium in 2016 and c. 300 tons in 2017. It also accounted for more than half of global LED production. As of July 2023, China accounted for between 80% to 95% of its production. Semiconductor applications dominate the commercial demand for gallium, accounting for 98% of the total. The next major application is for gadolinium gallium garnets. Extremely high-purity (>99.9999%) gallium is commercially available to serve the semiconductor industry. Gallium arsenide (GaAs) and gallium nitride (GaN) used in electronic components represented about 98% of the gallium consumption in the United States in 2007. About 66% of semiconductor gallium is used in the U.S. in integrated circuits (mostly gallium arsenide), such as the manufacture of ultra-high-speed logic chips and MESFETs for low-noise microwave preamplifiers in cell phones. About 20% of this gallium is used in optoelectronics. Worldwide, gallium arsenide makes up 95% of the annual global gallium consumption. It amounted to $7.5 billion in 2016, with 53% originating from cell phones, 27% from wireless communications, and the rest from automotive, consumer, fiber-optic, and military applications. The recent increase in GaAs consumption is mostly related to the emergence of 3G and 4G smartphones, which employ up to 10 times the amount of GaAs in older models. Gallium arsenide and gallium nitride can also be found in a variety of optoelectronic devices which had a market share of $15.3 billion in 2015 and $18.5 billion in 2016. Aluminium gallium arsenide (AlGaAs) is used in high-power infrared laser diodes. The semiconductors gallium nitride and indium gallium nitride are used in blue and violet optoelectronic devices, mostly laser diodes and light-emitting diodes. For example, gallium nitride 405 nm diode lasers are used as a violet light source for higher-density Blu-ray Disc compact data disc drives. Other major applications of gallium nitride are cable television transmission, commercial wireless infrastructure, power electronics, and satellites. The GaN radio frequency device market alone was estimated at $370 million in 2016 and $420 million in 2016. Multijunction photovoltaic cells, developed for satellite power applications, are made by molecular-beam epitaxy or metalorganic vapour-phase epitaxy of thin films of gallium arsenide, indium gallium phosphide, or indium gallium arsenide. The Mars Exploration Rovers and several satellites use triple-junction gallium arsenide on germanium cells. Gallium is also a component in photovoltaic compounds (such as copper indium gallium selenium sulfide Cu(In,Ga)(Se,S)2) used in solar panels as a cost-efficient alternative to crystalline silicon. Gallium readily alloys with most metals, and is used as an ingredient in low-melting alloys. The nearly eutectic alloy of gallium, indium, and tin is a room temperature liquid used in medical thermometers. This alloy, with the trade-name Galinstan (with the "-stan" referring to the tin, stannum in Latin), has a low melting point of −19 °C (−2.2 °F). It has been suggested that this family of alloys could also be used to cool computer chips in place of water, and is often used as a replacement for thermal paste in high-performance computing. Gallium alloys have been evaluated as substitutes for mercury dental amalgams, but these materials have yet to see wide acceptance. Liquid alloys containing mostly gallium and indium have been found to precipitate gaseous CO2 into solid carbon and are being researched as potential methodologies for carbon capture and possibly carbon removal. Because gallium wets glass or porcelain, gallium can be used to create brilliant mirrors. When the wetting action of gallium-alloys is not desired (as in Galinstan glass thermometers), the glass must be protected with a transparent layer of gallium(III) oxide. The plutonium used in nuclear weapon pits is stabilized in the δ phase and made machinable by alloying with gallium. Although gallium has no natural function in biology, gallium ions interact with processes in the body in a manner similar to iron(III). Because these processes include inflammation, a marker for many disease states, several gallium salts are used (or are in development) as pharmaceuticals and radiopharmaceuticals in medicine. Interest in the anticancer properties of gallium emerged when it was discovered that Ga(III) citrate injected in tumor-bearing animals localized to sites of tumor. Clinical trials have shown gallium nitrate to have antineoplastic activity against non-Hodgkin's lymphoma and urothelial cancers. A new generation of gallium-ligand complexes such as tris(8-quinolinolato)gallium(III) (KP46) and gallium maltolate has emerged. Gallium nitrate (brand name Ganite) has been used as an intravenous pharmaceutical to treat hypercalcemia associated with tumor metastasis to bones. Gallium is thought to interfere with osteoclast function, and the therapy may be effective when other treatments have failed. Gallium maltolate, an oral, highly absorbable form of gallium(III) ion, is an anti-proliferative to pathologically proliferating cells, particularly cancer cells and some bacteria that accept it in place of ferric iron (Fe). Researchers are conducting clinical and preclinical trials on this compound as a potential treatment for a number of cancers, infectious diseases, and inflammatory diseases. When gallium ions are mistakenly taken up in place of iron(III) by bacteria such as Pseudomonas, the ions interfere with respiration, and the bacteria die. This happens because iron is redox-active, allowing the transfer of electrons during respiration, while gallium is redox-inactive. A complex amine-phenol Ga(III) compound MR045 is selectively toxic to parasites resistant to chloroquine, a common drug against malaria. Both the Ga(III) complex and chloroquine act by inhibiting crystallization of hemozoin, a disposal product formed from the digestion of blood by the parasites. Gallium-67 salts such as gallium citrate and gallium nitrate are used as radiopharmaceutical agents in the nuclear medicine imaging known as gallium scan. The radioactive isotope Ga is used, and the compound or salt of gallium is unimportant. The body handles Ga in many ways as though it were Fe, and the ion is bound (and concentrates) in areas of inflammation, such as infection, and in areas of rapid cell division. This allows such sites to be imaged by nuclear scan techniques. Gallium-68, a positron emitter with a half-life of 68 min, is now used as a diagnostic radionuclide in PET-CT when linked to pharmaceutical preparations such as DOTATOC, a somatostatin analogue used for neuroendocrine tumors investigation, and DOTA-TATE, a newer one, used for neuroendocrine metastasis and lung neuroendocrine cancer, such as certain types of microcytoma. Gallium-68's preparation as a pharmaceutical is chemical, and the radionuclide is extracted by elution from germanium-68, a synthetic radioisotope of germanium, in gallium-68 generators. Neutrino detection: Gallium is used for neutrino detection. Possibly the largest amount of pure gallium ever collected in a single location is the Gallium-Germanium Neutrino Telescope used by the SAGE experiment at the Baksan Neutrino Observatory in Russia. This detector contains 55–57 tonnes (~9 cubic metres) of liquid gallium. Another experiment was the GALLEX neutrino detector operated in the early 1990s in an Italian mountain tunnel. The detector contained 12.2 tons of watered gallium-71. Solar neutrinos caused a few atoms of Ga to become radioactive Ge, which were detected. This experiment showed that the solar neutrino flux is 40% less than theory predicted. This deficit (solar neutrino problem) was not explained until better solar neutrino detectors and theories were constructed (see SNO). Ion source: Gallium is also used as a liquid metal ion source for a focused ion beam. For example, a focused gallium-ion beam was used to create the world's smallest book, Teeny Ted from Turnip Town. Lubricants: Gallium serves as an additive in glide wax for skis and other low-friction surface materials. Flexible electronics: Materials scientists speculate that the properties of gallium could make it suitable for the development of flexible and wearable devices. Hydrogen generation: Gallium disrupts the protective oxide layer on aluminium, allowing water to react with the aluminium in AlGa to produce hydrogen gas. Humor: A well-known practical joke among chemists is to fashion gallium spoons and use them to serve tea to unsuspecting guests, since gallium has a similar appearance to its lighter homolog aluminium. The spoons then melt in the hot tea. Advances in trace element testing have allowed scientists to discover traces of dissolved gallium in the Atlantic and Pacific Oceans In recent years, dissolved gallium concentrations have presented in the Beaufort Sea. These reports reflect the possible profiles of the Pacific and Atlantic Ocean waters. For the Pacific Oceans, typical dissolved gallium concentrations are between 4–6 pmol/kg at depths <~150 m. In comparison, for Atlantic waters 25–28 pmol/kg at depths >~350 m. Gallium has entered oceans mainly through aeolian input, but having gallium in our oceans can be used to resolve aluminium distribution in the oceans. The reason for this is that gallium is geochemically similar to aluminium, just less reactive. Gallium also has a slightly larger surface water residence time than aluminium. Gallium has a similar dissolved profile similar to that of aluminium, due to this gallium can be used as a tracer for aluminium. Gallium can also be used as a tracer of aeolian inputs of iron. Gallium is used as a tracer for iron in the northwest Pacific, south and central Atlantic Oceans. For example, in the northwest Pacific, low gallium surface waters, in the subpolar region suggest that there is low dust input, which can subsequently explain the following high-nutrient, low-chlorophyll environmental behavior. Metallic gallium is not toxic. However, several gallium compounds are toxic. Gallium halide complexes can be toxic. The Ga ion of soluble gallium salts tends to form the insoluble hydroxide when injected in large doses; precipitation of this hydroxide resulted in nephrotoxicity in animals. In lower doses, soluble gallium is tolerated well and does not accumulate as a poison, instead being excreted mostly through urine. Excretion of gallium occurs in two phases: the first phase has a biological half-life of 1 hour, while the second has a biological half-life of 25 hours. Inhaled Ga2O3 particles are probably toxic.
[ { "paragraph_id": 0, "text": "Gallium is a chemical element; it has symbol Ga and atomic number 31. Discovered by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875, gallium is in group 13 of the periodic table and is similar to the other metals of the group (aluminium, indium, and thallium).", "title": "" }, { "paragraph_id": 1, "text": "Elemental gallium is a relatively soft, silvery metal at standard temperature and pressure. In its liquid state, it becomes silvery white. If enough force is applied, solid gallium may fracture conchoidally. Since its discovery in 1875, gallium has widely been used to make alloys with low melting points. It is also used in semiconductors, as a dopant in semiconductor substrates.", "title": "" }, { "paragraph_id": 2, "text": "The melting point of gallium is used as a temperature reference point. Gallium alloys are used in thermometers as a non-toxic and environmentally friendly alternative to mercury, and can withstand higher temperatures than mercury. An even lower melting point of −19 °C (−2 °F), well below the freezing point of water, is claimed for the alloy galinstan (62–95% gallium, 5–22% indium, and 0–16% tin by weight), but that may be the freezing point with the effect of supercooling.", "title": "" }, { "paragraph_id": 3, "text": "Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores (such as sphalerite) and in bauxite. Elemental gallium is a liquid at temperatures greater than 29.76 °C (85.57 °F), and will melt in a person's hands at normal human body temperature of 37.0 °C (98.6 °F).", "title": "" }, { "paragraph_id": 4, "text": "Gallium is predominantly used in electronics. Gallium arsenide, the primary chemical compound of gallium in electronics, is used in microwave circuits, high-speed switching circuits, and infrared circuits. Semiconducting gallium nitride and indium gallium nitride produce blue and violet light-emitting diodes and diode lasers. Gallium is also used in the production of artificial gadolinium gallium garnet for jewelry. Gallium is considered a technology-critical element by the United States National Library of Medicine and Frontiers Media.", "title": "" }, { "paragraph_id": 5, "text": "Gallium has no known natural role in biology. Gallium(III) behaves in a similar manner to ferric salts in biological systems and has been used in some medical applications, including pharmaceuticals and radiopharmaceuticals.", "title": "" }, { "paragraph_id": 6, "text": "Elemental gallium is not found in nature, but it is easily obtained by smelting. Very pure gallium is a silvery blue metal that fractures conchoidally like glass. Gallium liquid expands by 3.10% when it solidifies; therefore, it should not be stored in glass or metal containers because the container may rupture when the gallium changes state. Gallium shares the higher-density liquid state with a short list of other materials that includes water, silicon, germanium, bismuth, and plutonium.", "title": "Physical properties" }, { "paragraph_id": 7, "text": "Gallium forms alloys with most metals. It readily diffuses into cracks or grain boundaries of some metals such as aluminium, aluminium–zinc alloys and steel, causing extreme loss of strength and ductility called liquid metal embrittlement.", "title": "Physical properties" }, { "paragraph_id": 8, "text": "The melting point of gallium, at 302.9146 K (29.7646 °C, 85.5763 °F), is just above room temperature, and is approximately the same as the average summer daytime temperatures in Earth's mid-latitudes. This melting point (mp) is one of the formal temperature reference points in the International Temperature Scale of 1990 (ITS-90) established by the International Bureau of Weights and Measures (BIPM). The triple point of gallium, 302.9166 K (29.7666 °C, 85.5799 °F), is used by the US National Institute of Standards and Technology (NIST) in preference to the melting point.", "title": "Physical properties" }, { "paragraph_id": 9, "text": "The melting point of gallium allows it to melt in the human hand, and then solidify if removed. The liquid metal has a strong tendency to supercool below its melting point/freezing point: Ga nanoparticles can be kept in the liquid state below 90 K. Seeding with a crystal helps to initiate freezing. Gallium is one of the four non-radioactive metals (with caesium, rubidium, and mercury) that are known to be liquid at, or near, normal room temperature. Of the four, gallium is the only one that is neither highly reactive (as are rubidium and caesium) nor highly toxic (as is mercury) and can, therefore, be used in metal-in-glass high-temperature thermometers. It is also notable for having one of the largest liquid ranges for a metal, and for having (unlike mercury) a low vapor pressure at high temperatures. Gallium's boiling point, 2676 K, is nearly nine times higher than its melting point on the absolute scale, the greatest ratio between melting point and boiling point of any element. Unlike mercury, liquid gallium metal wets glass and skin, along with most other materials (with the exceptions of quartz, graphite, gallium(III) oxide and PTFE), making it mechanically more difficult to handle even though it is substantially less toxic and requires far fewer precautions than mercury. Gallium painted onto glass is a brilliant mirror. For this reason as well as the metal contamination and freezing-expansion problems, samples of gallium metal are usually supplied in polyethylene packets within other containers.", "title": "Physical properties" }, { "paragraph_id": 10, "text": "Gallium does not crystallize in any of the simple crystal structures. The stable phase under normal conditions is orthorhombic with 8 atoms in the conventional unit cell. Within a unit cell, each atom has only one nearest neighbor (at a distance of 244 pm). The remaining six unit cell neighbors are spaced 27, 30 and 39 pm farther away, and they are grouped in pairs with the same distance. Many stable and metastable phases are found as function of temperature and pressure.", "title": "Physical properties" }, { "paragraph_id": 11, "text": "The bonding between the two nearest neighbors is covalent; hence Ga2 dimers are seen as the fundamental building blocks of the crystal. This explains the low melting point relative to the neighbor elements, aluminium and indium. This structure is strikingly similar to that of iodine and may form because of interactions between the single 4p electrons of gallium atoms, further away from the nucleus than the 4s electrons and the [Ar]3d core. This phenomenon recurs with mercury with its \"pseudo-noble-gas\" [Xe]4f5d6s electron configuration, which is liquid at room temperature. The 3d electrons do not shield the outer electrons very well from the nucleus and hence the first ionisation energy of gallium is greater than that of aluminium. Ga2 dimers do not persist in the liquid state and liquid gallium exhibits a complex low-coordinated structure in which each gallium atom is surrounded by 10 others, rather than 11–12 neighbors typical of most liquid metals.", "title": "Physical properties" }, { "paragraph_id": 12, "text": "The physical properties of gallium are highly anisotropic, i.e. have different values along the three major crystallographic axes a, b, and c (see table), producing a significant difference between the linear (α) and volume thermal expansion coefficients. The properties of gallium are strongly temperature-dependent, particularly near the melting point. For example, the coefficient of thermal expansion increases by several hundred percent upon melting.", "title": "Physical properties" }, { "paragraph_id": 13, "text": "Gallium has 31 known isotopes, ranging in mass number from 56 to 86. Only two isotopes are stable and occur naturally, gallium-69 and gallium-71. Gallium-69 is more abundant: it makes up about 60.1% of natural gallium, while gallium-71 makes up the remaining 39.9%. All the other isotopes are radioactive, with gallium-67 being the longest-lived (half-life 3.261 days). Isotopes lighter than gallium-69 usually decay through beta plus decay (positron emission) or electron capture to isotopes of zinc, although the lightest few (mass numbers 56–59) decay through prompt proton emission. Isotopes heavier than gallium-71 decay through beta minus decay (electron emission), possibly with delayed neutron emission, to isotopes of germanium, while gallium-70 can decay through both beta minus decay and electron capture. Gallium-67 is unique among the light isotopes in having only electron capture as a decay mode, as its decay energy is not sufficient to allow positron emission. Gallium-67 and gallium-68 (half-life 67.7 min) are both used in nuclear medicine.", "title": "Physical properties" }, { "paragraph_id": 14, "text": "Gallium is found primarily in the +3 oxidation state. The +1 oxidation state is also found in some compounds, although it is less common than it is for gallium's heavier congeners indium and thallium. For example, the very stable GaCl2 contains both gallium(I) and gallium(III) and can be formulated as GaGaCl4; in contrast, the monochloride is unstable above 0 °C, disproportionating into elemental gallium and gallium(III) chloride. Compounds containing Ga–Ga bonds are true gallium(II) compounds, such as GaS (which can be formulated as Ga2(S)2) and the dioxan complex Ga2Cl4(C4H8O2)2.", "title": "Chemical properties" }, { "paragraph_id": 15, "text": "Strong acids dissolve gallium, forming gallium(III) salts such as Ga(NO3)3 (gallium nitrate). Aqueous solutions of gallium(III) salts contain the hydrated gallium ion, [Ga(H2O)6]. Gallium(III) hydroxide, Ga(OH)3, may be precipitated from gallium(III) solutions by adding ammonia. Dehydrating Ga(OH)3 at 100 °C produces gallium oxide hydroxide, GaO(OH).", "title": "Chemical properties" }, { "paragraph_id": 16, "text": "Alkaline hydroxide solutions dissolve gallium, forming gallate salts (not to be confused with identically named gallic acid salts) containing the Ga(OH)4 anion. Gallium hydroxide, which is amphoteric, also dissolves in alkali to form gallate salts. Although earlier work suggested Ga(OH)6 as another possible gallate anion, it was not found in later work.", "title": "Chemical properties" }, { "paragraph_id": 17, "text": "Gallium reacts with the chalcogens only at relatively high temperatures. At room temperature, gallium metal is not reactive with air and water because it forms a passive, protective oxide layer. At higher temperatures, however, it reacts with atmospheric oxygen to form gallium(III) oxide, Ga2O3. Reducing Ga2O3 with elemental gallium in vacuum at 500 °C to 700 °C yields the dark brown gallium(I) oxide, Ga2O. Ga2O is a very strong reducing agent, capable of reducing H2SO4 to H2S. It disproportionates at 800 °C back to gallium and Ga2O3.", "title": "Chemical properties" }, { "paragraph_id": 18, "text": "Gallium(III) sulfide, Ga2S3, has 3 possible crystal modifications. It can be made by the reaction of gallium with hydrogen sulfide (H2S) at 950 °C. Alternatively, Ga(OH)3 can be used at 747 °C:", "title": "Chemical properties" }, { "paragraph_id": 19, "text": "Reacting a mixture of alkali metal carbonates and Ga2O3 with H2S leads to the formation of thiogallates containing the [Ga2S4] anion. Strong acids decompose these salts, releasing H2S in the process. The mercury salt, HgGa2S4, can be used as a phosphor.", "title": "Chemical properties" }, { "paragraph_id": 20, "text": "Gallium also forms sulfides in lower oxidation states, such as gallium(II) sulfide and the green gallium(I) sulfide, the latter of which is produced from the former by heating to 1000 °C under a stream of nitrogen.", "title": "Chemical properties" }, { "paragraph_id": 21, "text": "The other binary chalcogenides, Ga2Se3 and Ga2Te3, have the zincblende structure. They are all semiconductors but are easily hydrolysed and have limited utility.", "title": "Chemical properties" }, { "paragraph_id": 22, "text": "Gallium reacts with ammonia at 1050 °C to form gallium nitride, GaN. Gallium also forms binary compounds with phosphorus, arsenic, and antimony: gallium phosphide (GaP), gallium arsenide (GaAs), and gallium antimonide (GaSb). These compounds have the same structure as ZnS, and have important semiconducting properties. GaP, GaAs, and GaSb can be synthesized by the direct reaction of gallium with elemental phosphorus, arsenic, or antimony. They exhibit higher electrical conductivity than GaN. GaP can also be synthesized by reacting Ga2O with phosphorus at low temperatures.", "title": "Chemical properties" }, { "paragraph_id": 23, "text": "Gallium forms ternary nitrides; for example:", "title": "Chemical properties" }, { "paragraph_id": 24, "text": "Similar compounds with phosphorus and arsenic are possible: Li3GaP2 and Li3GaAs2. These compounds are easily hydrolyzed by dilute acids and water.", "title": "Chemical properties" }, { "paragraph_id": 25, "text": "Gallium(III) oxide reacts with fluorinating agents such as HF or F2 to form gallium(III) fluoride, GaF3. It is an ionic compound strongly insoluble in water. However, it dissolves in hydrofluoric acid, in which it forms an adduct with water, GaF3·3H2O. Attempting to dehydrate this adduct forms GaF2OH·nH2O. The adduct reacts with ammonia to form GaF3·3NH3, which can then be heated to form anhydrous GaF3.", "title": "Chemical properties" }, { "paragraph_id": 26, "text": "Gallium trichloride is formed by the reaction of gallium metal with chlorine gas. Unlike the trifluoride, gallium(III) chloride exists as dimeric molecules, Ga2Cl6, with a melting point of 78 °C. Eqivalent compounds are formed with bromine and iodine, Ga2Br6 and Ga2I6.", "title": "Chemical properties" }, { "paragraph_id": 27, "text": "Like the other group 13 trihalides, gallium(III) halides are Lewis acids, reacting as halide acceptors with alkali metal halides to form salts containing GaX4 anions, where X is a halogen. They also react with alkyl halides to form carbocations and GaX4.", "title": "Chemical properties" }, { "paragraph_id": 28, "text": "When heated to a high temperature, gallium(III) halides react with elemental gallium to form the respective gallium(I) halides. For example, GaCl3 reacts with Ga to form GaCl:", "title": "Chemical properties" }, { "paragraph_id": 29, "text": "At lower temperatures, the equilibrium shifts toward the left and GaCl disproportionates back to elemental gallium and GaCl3. GaCl can also be produced by reacting Ga with HCl at 950 °C; the product can be condensed as a red solid.", "title": "Chemical properties" }, { "paragraph_id": 30, "text": "Gallium(I) compounds can be stabilized by forming adducts with Lewis acids. For example:", "title": "Chemical properties" }, { "paragraph_id": 31, "text": "The so-called \"gallium(II) halides\", GaX2, are actually adducts of gallium(I) halides with the respective gallium(III) halides, having the structure Ga[GaX4]. For example:", "title": "Chemical properties" }, { "paragraph_id": 32, "text": "Like aluminium, gallium also forms a hydride, GaH3, known as gallane, which may be produced by reacting lithium gallanate (LiGaH4) with gallium(III) chloride at −30 °C:", "title": "Chemical properties" }, { "paragraph_id": 33, "text": "In the presence of dimethyl ether as solvent, GaH3 polymerizes to (GaH3)n. If no solvent is used, the dimer Ga2H6 (digallane) is formed as a gas. Its structure is similar to diborane, having two hydrogen atoms bridging the two gallium centers, unlike α-AlH3 in which aluminium has a coordination number of 6.", "title": "Chemical properties" }, { "paragraph_id": 34, "text": "Gallane is unstable above −10 °C, decomposing to elemental gallium and hydrogen.", "title": "Chemical properties" }, { "paragraph_id": 35, "text": "Organogallium compounds are of similar reactivity to organoindium compounds, less reactive than organoaluminium compounds, but more reactive than organothallium compounds. Alkylgalliums are monomeric. Lewis acidity decreases in the order Al > Ga > In and as a result organogallium compounds do not form bridged dimers as organoaluminium compounds do. Organogallium compounds are also less reactive than organoaluminium compounds. They do form stable peroxides. These alkylgalliums are liquids at room temperature, having low melting points, and are quite mobile and flammable. Triphenylgallium is monomeric in solution, but its crystals form chain structures due to weak intermolecluar Ga···C interactions.", "title": "Chemical properties" }, { "paragraph_id": 36, "text": "Gallium trichloride is a common starting reagent for the formation of organogallium compounds, such as in carbogallation reactions. Gallium trichloride reacts with lithium cyclopentadienide in diethyl ether to form the trigonal planar gallium cyclopentadienyl complex GaCp3. Gallium(I) forms complexes with arene ligands such as hexamethylbenzene. Because this ligand is quite bulky, the structure of the [Ga(η-C6Me6)] is that of a half-sandwich. Less bulky ligands such as mesitylene allow two ligands to be attached to the central gallium atom in a bent sandwich structure. Benzene is even less bulky and allows the formation of dimers: an example is [Ga(η-C6H6)2] [GaCl4]·3C6H6.", "title": "Chemical properties" }, { "paragraph_id": 37, "text": "In 1871, the existence of gallium was first predicted by Russian chemist Dmitri Mendeleev, who named it \"eka-aluminium\" from its position in his periodic table. He also predicted several properties of eka-aluminium that correspond closely to the real properties of gallium, such as its density, melting point, oxide character, and bonding in chloride.", "title": "History" }, { "paragraph_id": 38, "text": "Mendeleev further predicted that eka-aluminium would be discovered by means of the spectroscope, and that metallic eka-aluminium would dissolve slowly in both acids and alkalis and would not react with air. He also predicted that M2O3 would dissolve in acids to give MX3 salts, that eka-aluminium salts would form basic salts, that eka-aluminium sulfate should form alums, and that anhydrous MCl3 should have a greater volatility than ZnCl2: all of these predictions turned out to be true.", "title": "History" }, { "paragraph_id": 39, "text": "Gallium was discovered using spectroscopy by French chemist Paul Emile Lecoq de Boisbaudran in 1875 from its characteristic spectrum (two violet lines) in a sample of sphalerite. Later that year, Lecoq obtained the free metal by electrolysis of the hydroxide in potassium hydroxide solution.", "title": "History" }, { "paragraph_id": 40, "text": "He named the element \"gallia\", from Latin Gallia meaning Gaul, after his native land of France. It was later claimed that, in a multilingual pun of a kind favoured by men of science in the 19th century, he had also named gallium after himself: Le coq is French for \"the rooster\", and the Latin word for \"rooster\" is gallus. In an 1877 article, Lecoq denied this conjecture.", "title": "History" }, { "paragraph_id": 41, "text": "Originally, de Boisbaudran determined the density of gallium as 4.7 g/cm, the only property that failed to match Mendeleev's predictions; Mendeleev then wrote to him and suggested that he should remeasure the density, and de Boisbaudran then obtained the correct value of 5.9 g/cm, that Mendeleev had predicted exactly.", "title": "History" }, { "paragraph_id": 42, "text": "From its discovery in 1875 until the era of semiconductors, the primary uses of gallium were high-temperature thermometrics and metal alloys with unusual properties of stability or ease of melting (some such being liquid at room temperature).", "title": "History" }, { "paragraph_id": 43, "text": "The development of gallium arsenide as a direct bandgap semiconductor in the 1960s ushered in the most important stage in the applications of gallium. In the late 1960s, the electronics industry started using gallium on a commercial scale to fabricate light emitting diodes, photovoltaics and semiconductors, while the metals industry used it to reduce the melting point of alloys.", "title": "History" }, { "paragraph_id": 44, "text": "Gallium does not exist as a free element in the Earth's crust, and the few high-content minerals, such as gallite (CuGaS2), are too rare to serve as a primary source. The abundance in the Earth's crust is approximately 16.9 ppm. This is comparable to the crustal abundances of lead, cobalt, and niobium. Yet unlike these elements, gallium does not form its own ore deposits with concentrations of > 0.1 wt.% in ore. Rather it occurs at trace concentrations similar to the crustal value in zinc ores, and at somewhat higher values (~ 50 ppm) in aluminium ores, from both of which it is extracted as a by-product. This lack of independent deposits is due to gallium's geochemical behaviour, showing no strong enrichment in the processes relevant to the formation of most ore deposits.", "title": "Occurrence" }, { "paragraph_id": 45, "text": "The United States Geological Survey (USGS) estimates that more than 1 million tons of gallium is contained in known reserves of bauxite and zinc ores. Some coal flue dusts contain small quantities of gallium, typically less than 1% by weight. However, these amounts are not extractable without mining of the host materials (see below). Thus, the availability of gallium is fundamentally determined by the rate at which bauxite, zinc ores, and coal are extracted.", "title": "Occurrence" }, { "paragraph_id": 46, "text": "Gallium is produced exclusively as a by-product during the processing of the ores of other metals. Its main source material is bauxite, the chief ore of aluminium, but minor amounts are also extracted from sulfidic zinc ores (sphalerite being the main host mineral). In the past, certain coals were an important source.", "title": "Production and availability" }, { "paragraph_id": 47, "text": "During the processing of bauxite to alumina in the Bayer process, gallium accumulates in the sodium hydroxide liquor. From this it can be extracted by a variety of methods. The most recent is the use of ion-exchange resin. Achievable extraction efficiencies critically depend on the original concentration in the feed bauxite. At a typical feed concentration of 50 ppm, about 15% of the contained gallium is extractable. The remainder reports to the red mud and aluminium hydroxide streams. Gallium is removed from the ion-exchange resin in solution. Electrolysis then gives gallium metal. For semiconductor use, it is further purified with zone melting or single-crystal extraction from a melt (Czochralski process). Purities of 99.9999% are routinely achieved and commercially available.", "title": "Production and availability" }, { "paragraph_id": 48, "text": "Its by-product status means that gallium production is constrained by the amount of bauxite, sulfidic zinc ores (and coal) extracted per year. Therefore, its availability needs to be discussed in terms of supply potential. The supply potential of a by-product is defined as that amount which is economically extractable from its host materials per year under current market conditions (i.e. technology and price). Reserves and resources are not relevant for by-products, since they cannot be extracted independently from the main-products. Recent estimates put the supply potential of gallium at a minimum of 2,100 t/yr from bauxite, 85 t/yr from sulfidic zinc ores, and potentially 590 t/yr from coal. These figures are significantly greater than current production (375 t in 2016). Thus, major future increases in the by-product production of gallium will be possible without significant increases in production costs or price. The average price for low-grade gallium was $120 per kilogram in 2016 and $135–140 per kilogram in 2017.", "title": "Production and availability" }, { "paragraph_id": 49, "text": "In 2017, the world's production of low-grade gallium was c. 315 tons—an increase of 15% from 2016. China, Japan, South Korea, Russia, and Ukraine were the leading producers, while Germany ceased primary production of gallium in 2016. The yield of high-purity gallium was ca. 180 tons, mostly originating from China, Japan, Slovakia, UK and U.S. The 2017 world annual production capacity was estimated at 730 tons for low-grade and 320 tons for refined gallium.", "title": "Production and availability" }, { "paragraph_id": 50, "text": "China produced c. 250 tons of low-grade gallium in 2016 and c. 300 tons in 2017. It also accounted for more than half of global LED production. As of July 2023, China accounted for between 80% to 95% of its production.", "title": "Production and availability" }, { "paragraph_id": 51, "text": "Semiconductor applications dominate the commercial demand for gallium, accounting for 98% of the total. The next major application is for gadolinium gallium garnets.", "title": "Applications" }, { "paragraph_id": 52, "text": "Extremely high-purity (>99.9999%) gallium is commercially available to serve the semiconductor industry. Gallium arsenide (GaAs) and gallium nitride (GaN) used in electronic components represented about 98% of the gallium consumption in the United States in 2007. About 66% of semiconductor gallium is used in the U.S. in integrated circuits (mostly gallium arsenide), such as the manufacture of ultra-high-speed logic chips and MESFETs for low-noise microwave preamplifiers in cell phones. About 20% of this gallium is used in optoelectronics.", "title": "Applications" }, { "paragraph_id": 53, "text": "Worldwide, gallium arsenide makes up 95% of the annual global gallium consumption. It amounted to $7.5 billion in 2016, with 53% originating from cell phones, 27% from wireless communications, and the rest from automotive, consumer, fiber-optic, and military applications. The recent increase in GaAs consumption is mostly related to the emergence of 3G and 4G smartphones, which employ up to 10 times the amount of GaAs in older models.", "title": "Applications" }, { "paragraph_id": 54, "text": "Gallium arsenide and gallium nitride can also be found in a variety of optoelectronic devices which had a market share of $15.3 billion in 2015 and $18.5 billion in 2016. Aluminium gallium arsenide (AlGaAs) is used in high-power infrared laser diodes. The semiconductors gallium nitride and indium gallium nitride are used in blue and violet optoelectronic devices, mostly laser diodes and light-emitting diodes. For example, gallium nitride 405 nm diode lasers are used as a violet light source for higher-density Blu-ray Disc compact data disc drives.", "title": "Applications" }, { "paragraph_id": 55, "text": "Other major applications of gallium nitride are cable television transmission, commercial wireless infrastructure, power electronics, and satellites. The GaN radio frequency device market alone was estimated at $370 million in 2016 and $420 million in 2016.", "title": "Applications" }, { "paragraph_id": 56, "text": "Multijunction photovoltaic cells, developed for satellite power applications, are made by molecular-beam epitaxy or metalorganic vapour-phase epitaxy of thin films of gallium arsenide, indium gallium phosphide, or indium gallium arsenide. The Mars Exploration Rovers and several satellites use triple-junction gallium arsenide on germanium cells. Gallium is also a component in photovoltaic compounds (such as copper indium gallium selenium sulfide Cu(In,Ga)(Se,S)2) used in solar panels as a cost-efficient alternative to crystalline silicon.", "title": "Applications" }, { "paragraph_id": 57, "text": "Gallium readily alloys with most metals, and is used as an ingredient in low-melting alloys. The nearly eutectic alloy of gallium, indium, and tin is a room temperature liquid used in medical thermometers. This alloy, with the trade-name Galinstan (with the \"-stan\" referring to the tin, stannum in Latin), has a low melting point of −19 °C (−2.2 °F). It has been suggested that this family of alloys could also be used to cool computer chips in place of water, and is often used as a replacement for thermal paste in high-performance computing. Gallium alloys have been evaluated as substitutes for mercury dental amalgams, but these materials have yet to see wide acceptance. Liquid alloys containing mostly gallium and indium have been found to precipitate gaseous CO2 into solid carbon and are being researched as potential methodologies for carbon capture and possibly carbon removal.", "title": "Applications" }, { "paragraph_id": 58, "text": "Because gallium wets glass or porcelain, gallium can be used to create brilliant mirrors. When the wetting action of gallium-alloys is not desired (as in Galinstan glass thermometers), the glass must be protected with a transparent layer of gallium(III) oxide.", "title": "Applications" }, { "paragraph_id": 59, "text": "The plutonium used in nuclear weapon pits is stabilized in the δ phase and made machinable by alloying with gallium.", "title": "Applications" }, { "paragraph_id": 60, "text": "Although gallium has no natural function in biology, gallium ions interact with processes in the body in a manner similar to iron(III). Because these processes include inflammation, a marker for many disease states, several gallium salts are used (or are in development) as pharmaceuticals and radiopharmaceuticals in medicine. Interest in the anticancer properties of gallium emerged when it was discovered that Ga(III) citrate injected in tumor-bearing animals localized to sites of tumor. Clinical trials have shown gallium nitrate to have antineoplastic activity against non-Hodgkin's lymphoma and urothelial cancers. A new generation of gallium-ligand complexes such as tris(8-quinolinolato)gallium(III) (KP46) and gallium maltolate has emerged. Gallium nitrate (brand name Ganite) has been used as an intravenous pharmaceutical to treat hypercalcemia associated with tumor metastasis to bones. Gallium is thought to interfere with osteoclast function, and the therapy may be effective when other treatments have failed. Gallium maltolate, an oral, highly absorbable form of gallium(III) ion, is an anti-proliferative to pathologically proliferating cells, particularly cancer cells and some bacteria that accept it in place of ferric iron (Fe). Researchers are conducting clinical and preclinical trials on this compound as a potential treatment for a number of cancers, infectious diseases, and inflammatory diseases.", "title": "Applications" }, { "paragraph_id": 61, "text": "When gallium ions are mistakenly taken up in place of iron(III) by bacteria such as Pseudomonas, the ions interfere with respiration, and the bacteria die. This happens because iron is redox-active, allowing the transfer of electrons during respiration, while gallium is redox-inactive.", "title": "Applications" }, { "paragraph_id": 62, "text": "A complex amine-phenol Ga(III) compound MR045 is selectively toxic to parasites resistant to chloroquine, a common drug against malaria. Both the Ga(III) complex and chloroquine act by inhibiting crystallization of hemozoin, a disposal product formed from the digestion of blood by the parasites.", "title": "Applications" }, { "paragraph_id": 63, "text": "Gallium-67 salts such as gallium citrate and gallium nitrate are used as radiopharmaceutical agents in the nuclear medicine imaging known as gallium scan. The radioactive isotope Ga is used, and the compound or salt of gallium is unimportant. The body handles Ga in many ways as though it were Fe, and the ion is bound (and concentrates) in areas of inflammation, such as infection, and in areas of rapid cell division. This allows such sites to be imaged by nuclear scan techniques.", "title": "Applications" }, { "paragraph_id": 64, "text": "Gallium-68, a positron emitter with a half-life of 68 min, is now used as a diagnostic radionuclide in PET-CT when linked to pharmaceutical preparations such as DOTATOC, a somatostatin analogue used for neuroendocrine tumors investigation, and DOTA-TATE, a newer one, used for neuroendocrine metastasis and lung neuroendocrine cancer, such as certain types of microcytoma. Gallium-68's preparation as a pharmaceutical is chemical, and the radionuclide is extracted by elution from germanium-68, a synthetic radioisotope of germanium, in gallium-68 generators.", "title": "Applications" }, { "paragraph_id": 65, "text": "Neutrino detection: Gallium is used for neutrino detection. Possibly the largest amount of pure gallium ever collected in a single location is the Gallium-Germanium Neutrino Telescope used by the SAGE experiment at the Baksan Neutrino Observatory in Russia. This detector contains 55–57 tonnes (~9 cubic metres) of liquid gallium. Another experiment was the GALLEX neutrino detector operated in the early 1990s in an Italian mountain tunnel. The detector contained 12.2 tons of watered gallium-71. Solar neutrinos caused a few atoms of Ga to become radioactive Ge, which were detected. This experiment showed that the solar neutrino flux is 40% less than theory predicted. This deficit (solar neutrino problem) was not explained until better solar neutrino detectors and theories were constructed (see SNO).", "title": "Applications" }, { "paragraph_id": 66, "text": "Ion source: Gallium is also used as a liquid metal ion source for a focused ion beam. For example, a focused gallium-ion beam was used to create the world's smallest book, Teeny Ted from Turnip Town.", "title": "Applications" }, { "paragraph_id": 67, "text": "Lubricants: Gallium serves as an additive in glide wax for skis and other low-friction surface materials.", "title": "Applications" }, { "paragraph_id": 68, "text": "Flexible electronics: Materials scientists speculate that the properties of gallium could make it suitable for the development of flexible and wearable devices.", "title": "Applications" }, { "paragraph_id": 69, "text": "Hydrogen generation: Gallium disrupts the protective oxide layer on aluminium, allowing water to react with the aluminium in AlGa to produce hydrogen gas.", "title": "Applications" }, { "paragraph_id": 70, "text": "Humor: A well-known practical joke among chemists is to fashion gallium spoons and use them to serve tea to unsuspecting guests, since gallium has a similar appearance to its lighter homolog aluminium. The spoons then melt in the hot tea.", "title": "Applications" }, { "paragraph_id": 71, "text": "Advances in trace element testing have allowed scientists to discover traces of dissolved gallium in the Atlantic and Pacific Oceans In recent years, dissolved gallium concentrations have presented in the Beaufort Sea. These reports reflect the possible profiles of the Pacific and Atlantic Ocean waters. For the Pacific Oceans, typical dissolved gallium concentrations are between 4–6 pmol/kg at depths <~150 m. In comparison, for Atlantic waters 25–28 pmol/kg at depths >~350 m.", "title": "Gallium in the ocean" }, { "paragraph_id": 72, "text": "Gallium has entered oceans mainly through aeolian input, but having gallium in our oceans can be used to resolve aluminium distribution in the oceans. The reason for this is that gallium is geochemically similar to aluminium, just less reactive. Gallium also has a slightly larger surface water residence time than aluminium. Gallium has a similar dissolved profile similar to that of aluminium, due to this gallium can be used as a tracer for aluminium. Gallium can also be used as a tracer of aeolian inputs of iron. Gallium is used as a tracer for iron in the northwest Pacific, south and central Atlantic Oceans. For example, in the northwest Pacific, low gallium surface waters, in the subpolar region suggest that there is low dust input, which can subsequently explain the following high-nutrient, low-chlorophyll environmental behavior.", "title": "Gallium in the ocean" }, { "paragraph_id": 73, "text": "Metallic gallium is not toxic. However, several gallium compounds are toxic.", "title": "Precautions" }, { "paragraph_id": 74, "text": "Gallium halide complexes can be toxic. The Ga ion of soluble gallium salts tends to form the insoluble hydroxide when injected in large doses; precipitation of this hydroxide resulted in nephrotoxicity in animals. In lower doses, soluble gallium is tolerated well and does not accumulate as a poison, instead being excreted mostly through urine. Excretion of gallium occurs in two phases: the first phase has a biological half-life of 1 hour, while the second has a biological half-life of 25 hours.", "title": "Precautions" }, { "paragraph_id": 75, "text": "Inhaled Ga2O3 particles are probably toxic.", "title": "Precautions" } ]
Gallium is a chemical element; it has symbol Ga and atomic number 31. Discovered by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875, gallium is in group 13 of the periodic table and is similar to the other metals of the group. Elemental gallium is a relatively soft, silvery metal at standard temperature and pressure. In its liquid state, it becomes silvery white. If enough force is applied, solid gallium may fracture conchoidally. Since its discovery in 1875, gallium has widely been used to make alloys with low melting points. It is also used in semiconductors, as a dopant in semiconductor substrates. The melting point of gallium is used as a temperature reference point. Gallium alloys are used in thermometers as a non-toxic and environmentally friendly alternative to mercury, and can withstand higher temperatures than mercury. An even lower melting point of −19 °C (−2 °F), well below the freezing point of water, is claimed for the alloy galinstan, but that may be the freezing point with the effect of supercooling. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Elemental gallium is a liquid at temperatures greater than 29.76 °C (85.57 °F), and will melt in a person's hands at normal human body temperature of 37.0 °C (98.6 °F). Gallium is predominantly used in electronics. Gallium arsenide, the primary chemical compound of gallium in electronics, is used in microwave circuits, high-speed switching circuits, and infrared circuits. Semiconducting gallium nitride and indium gallium nitride produce blue and violet light-emitting diodes and diode lasers. Gallium is also used in the production of artificial gadolinium gallium garnet for jewelry. Gallium is considered a technology-critical element by the United States National Library of Medicine and Frontiers Media. Gallium has no known natural role in biology. Gallium(III) behaves in a similar manner to ferric salts in biological systems and has been used in some medical applications, including pharmaceuticals and radiopharmaceuticals.
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https://en.wikipedia.org/wiki/Gallium
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Germanium
Germanium is a chemical element; it has symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid in the carbon group that is chemically similar to its group neighbors silicon and tin. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Because it seldom appears in high concentration, germanium was discovered comparatively late in the discovery of the elements. Germanium ranks near fiftieth in relative abundance of the elements in the Earth's crust. In 1869, Dmitri Mendeleev predicted its existence and some of its properties from its position on his periodic table, and called the element ekasilicon. In 1886, Clemens Winkler at Freiberg University found the new element, along with silver and sulfur, in the mineral argyrodite. Winkler named the element after his country, Germany. Germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is also recovered commercially from silver, lead, and copper ores. Elemental germanium is used as a semiconductor in transistors and various other electronic devices. Historically, the first decade of semiconductor electronics was based entirely on germanium. Presently, the major end uses are fibre-optic systems, infrared optics, solar cell applications, and light-emitting diodes (LEDs). Germanium compounds are also used for polymerization catalysts and have most recently found use in the production of nanowires. This element forms a large number of organogermanium compounds, such as tetraethylgermanium, useful in organometallic chemistry. Germanium is considered a technology-critical element. Germanium is not thought to be an essential element for any living organism. Similar to silicon and aluminium, naturally-occurring germanium compounds tend to be insoluble in water and thus have little oral toxicity. However, synthetic soluble germanium salts are nephrotoxic, and synthetic chemically reactive germanium compounds with halogens and hydrogen are irritants and toxins. In his report on The Periodic Law of the Chemical Elements in 1869, the Russian chemist Dmitri Mendeleev predicted the existence of several unknown chemical elements, including one that would fill a gap in the carbon family, located between silicon and tin. Because of its position in his periodic table, Mendeleev called it ekasilicon (Es), and he estimated its atomic weight to be 70 (later 72). In mid-1885, at a mine near Freiberg, Saxony, a new mineral was discovered and named argyrodite because of its high silver content. The chemist Clemens Winkler analyzed this new mineral, which proved to be a combination of silver, sulfur, and a new element. Winkler was able to isolate the new element in 1886 and found it similar to antimony. He initially considered the new element to be eka-antimony, but was soon convinced that it was instead eka-silicon. Before Winkler published his results on the new element, he decided that he would name his element neptunium, since the recent discovery of planet Neptune in 1846 had similarly been preceded by mathematical predictions of its existence. However, the name "neptunium" had already been given to another proposed chemical element (though not the element that today bears the name neptunium, which was discovered in 1940). So instead, Winkler named the new element germanium (from the Latin word, Germania, for Germany) in honor of his homeland. Argyrodite proved empirically to be Ag8GeS6. Because this new element showed some similarities with the elements arsenic and antimony, its proper place in the periodic table was under consideration, but its similarities with Dmitri Mendeleev's predicted element "ekasilicon" confirmed that place on the periodic table. With further material from 500 kg of ore from the mines in Saxony, Winkler confirmed the chemical properties of the new element in 1887. He also determined an atomic weight of 72.32 by analyzing pure germanium tetrachloride (GeCl4), while Lecoq de Boisbaudran deduced 72.3 by a comparison of the lines in the spark spectrum of the element. Winkler was able to prepare several new compounds of germanium, including fluorides, chlorides, sulfides, dioxide, and tetraethylgermane (Ge(C2H5)4), the first organogermane. The physical data from those compounds—which corresponded well with Mendeleev's predictions—made the discovery an important confirmation of Mendeleev's idea of element periodicity. Here is a comparison between the prediction and Winkler's data: Until the late 1930s, germanium was thought to be a poorly conducting metal. Germanium did not become economically significant until after 1945 when its properties as an electronic semiconductor were recognized. During World War II, small amounts of germanium were used in some special electronic devices, mostly diodes. The first major use was the point-contact Schottky diodes for radar pulse detection during the War. The first silicon–germanium alloys were obtained in 1955. Before 1945, only a few hundred kilograms of germanium were produced in smelters each year, but by the end of the 1950s, the annual worldwide production had reached 40 metric tons (44 short tons). The development of the germanium transistor in 1948 opened the door to countless applications of solid state electronics. From 1950 through the early 1970s, this area provided an increasing market for germanium, but then high-purity silicon began replacing germanium in transistors, diodes, and rectifiers. For example, the company that became Fairchild Semiconductor was founded in 1957 with the express purpose of producing silicon transistors. Silicon has superior electrical properties, but it requires much greater purity that could not be commercially achieved in the early years of semiconductor electronics. Meanwhile, the demand for germanium for fiber optic communication networks, infrared night vision systems, and polymerization catalysts increased dramatically. These end uses represented 85% of worldwide germanium consumption in 2000. The US government even designated germanium as a strategic and critical material, calling for a 146 ton (132 tonne) supply in the national defense stockpile in 1987. Germanium differs from silicon in that the supply is limited by the availability of exploitable sources, while the supply of silicon is limited only by production capacity since silicon comes from ordinary sand and quartz. While silicon could be bought in 1998 for less than $10 per kg, the price of germanium was almost $800 per kg. Under standard conditions, germanium is a brittle, silvery-white, semi-metallic element. This form constitutes an allotrope known as α-germanium, which has a metallic luster and a diamond cubic crystal structure, the same as diamond. While in crystal form, germanium has a displacement threshold energy of 19.7 − 0.5 + 0.6 eV {\displaystyle 19.7_{-0.5}^{+0.6}~{\text{eV}}} . At pressures above 120 kbar, germanium becomes the allotrope β-germanium with the same structure as β-tin. Like silicon, gallium, bismuth, antimony, and water, germanium is one of the few substances that expands as it solidifies (i.e. freezes) from the molten state. Germanium is a semiconductor having an indirect bandgap, as is crystalline silicon. Zone refining techniques have led to the production of crystalline germanium for semiconductors that has an impurity of only one part in 10, making it one of the purest materials ever obtained. The first semi-metallic material discovered (in 2005) to become a superconductor in the presence of an extremely strong electromagnetic field was an alloy of germanium, uranium, and rhodium. Pure germanium is known to spontaneously extrude very long screw dislocations, referred to as germanium whiskers. The growth of these whiskers is one of the primary reasons for the failure of older diodes and transistors made from germanium, as, depending on what they eventually touch, they may lead to an electrical short. Elemental germanium starts to oxidize slowly in air at around 250 °C, forming GeO2 . Germanium is insoluble in dilute acids and alkalis but dissolves slowly in hot concentrated sulfuric and nitric acids and reacts violently with molten alkalis to produce germanates ([GeO3]). Germanium occurs mostly in the oxidation state +4 although many +2 compounds are known. Other oxidation states are rare: +3 is found in compounds such as Ge2Cl6, and +3 and +1 are found on the surface of oxides, or negative oxidation states in germanides, such as −4 in Mg2Ge. Germanium cluster anions (Zintl ions) such as Ge4, Ge9, Ge9, [(Ge9)2] have been prepared by the extraction from alloys containing alkali metals and germanium in liquid ammonia in the presence of ethylenediamine or a cryptand. The oxidation states of the element in these ions are not integers—similar to the ozonides O3. Two oxides of germanium are known: germanium dioxide (GeO2, germania) and germanium monoxide, (GeO). The dioxide, GeO2, can be obtained by roasting germanium disulfide (GeS2), and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. The monoxide, germanous oxide, can be obtained by the high temperature reaction of GeO2 with elemental Ge. The dioxide (and the related oxides and germanates) exhibits the unusual property of having a high refractive index for visible light, but transparency to infrared light. Bismuth germanate, Bi4Ge3O12 (BGO), is used as a scintillator. Binary compounds with other chalcogens are also known, such as the disulfide (GeS2) and diselenide (GeSe2), and the monosulfide (GeS), monoselenide (GeSe), and monotelluride (GeTe). GeS2 forms as a white precipitate when hydrogen sulfide is passed through strongly acid solutions containing Ge(IV). The disulfide is appreciably soluble in water and in solutions of caustic alkalis or alkaline sulfides. Nevertheless, it is not soluble in acidic water, which allowed Winkler to discover the element. By heating the disulfide in a current of hydrogen, the monosulfide (GeS) is formed, which sublimes in thin plates of a dark color and metallic luster, and is soluble in solutions of the caustic alkalis. Upon melting with alkaline carbonates and sulfur, germanium compounds form salts known as thiogermanates. Four tetrahalides are known. Under normal conditions GeI4 is a solid, GeF4 a gas and the others volatile liquids. For example, germanium tetrachloride, GeCl4, is obtained as a colorless fuming liquid boiling at 83.1 °C by heating the metal with chlorine. All the tetrahalides are readily hydrolyzed to hydrated germanium dioxide. GeCl4 is used in the production of organogermanium compounds. All four dihalides are known and in contrast to the tetrahalides are polymeric solids. Additionally Ge2Cl6 and some higher compounds of formula GenCl2n+2 are known. The unusual compound Ge6Cl16 has been prepared that contains the Ge5Cl12 unit with a neopentane structure. Germane (GeH4) is a compound similar in structure to methane. Polygermanes—compounds that are similar to alkanes—with formula GenH2n+2 containing up to five germanium atoms are known. The germanes are less volatile and less reactive than their corresponding silicon analogues. GeH4 reacts with alkali metals in liquid ammonia to form white crystalline MGeH3 which contain the GeH3 anion. The germanium hydrohalides with one, two and three halogen atoms are colorless reactive liquids. The first organogermanium compound was synthesized by Winkler in 1887; the reaction of germanium tetrachloride with diethylzinc yielded tetraethylgermane (Ge(C2H5)4). Organogermanes of the type R4Ge (where R is an alkyl) such as tetramethylgermane (Ge(CH3)4) and tetraethylgermane are accessed through the cheapest available germanium precursor germanium tetrachloride and alkyl nucleophiles. Organic germanium hydrides such as isobutylgermane ((CH3)2CHCH2GeH3) were found to be less hazardous and may be used as a liquid substitute for toxic germane gas in semiconductor applications. Many germanium reactive intermediates are known: germyl free radicals, germylenes (similar to carbenes), and germynes (similar to carbynes). The organogermanium compound 2-carboxyethylgermasesquioxane was first reported in the 1970s, and for a while was used as a dietary supplement and thought to possibly have anti-tumor qualities. Using a ligand called Eind (1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl) germanium is able to form a double bond with oxygen (germanone). Germanium hydride and germanium tetrahydride are very flammable and even explosive when mixed with air. Germanium occurs in five natural isotopes: Ge, Ge, Ge, Ge, and Ge. Of these, Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78×10 years. Ge is the most common isotope, having a natural abundance of approximately 36%. Ge is the least common with a natural abundance of approximately 7%. When bombarded with alpha particles, the isotope Ge will generate stable Se, releasing high energy electrons in the process. Because of this, it is used in combination with radon for nuclear batteries. At least 27 radioisotopes have also been synthesized, ranging in atomic mass from 58 to 89. The most stable of these is Ge, decaying by electron capture with a half-life of 270.95 days. The least stable is Ge, with a half-life of 30 ms. While most of germanium's radioisotopes decay by beta decay, Ge and Ge decay by β delayed proton emission. Ge through Ge isotopes also exhibit minor β delayed neutron emission decay paths. Germanium is created by stellar nucleosynthesis, mostly by the s-process in asymptotic giant branch stars. The s-process is a slow neutron capture of lighter elements inside pulsating red giant stars. Germanium has been detected in some of the most distant stars and in the atmosphere of Jupiter. Germanium's abundance in the Earth's crust is approximately 1.6 ppm. Only a few minerals like argyrodite, briartite, germanite, renierite and sphalerite contain appreciable amounts of germanium. Only few of them (especially germanite) are, very rarely, found in mineable amounts. Some zinc–copper–lead ore bodies contain enough germanium to justify extraction from the final ore concentrate. An unusual natural enrichment process causes a high content of germanium in some coal seams, discovered by Victor Moritz Goldschmidt during a broad survey for germanium deposits. The highest concentration ever found was in Hartley coal ash with as much as 1.6% germanium. The coal deposits near Xilinhaote, Inner Mongolia, contain an estimated 1600 tonnes of germanium. About 118 tonnes of germanium were produced in 2011 worldwide, mostly in China (80 t), Russia (5 t) and United States (3 t). Germanium is recovered as a by-product from sphalerite zinc ores where it is concentrated in amounts as great as 0.3%, especially from low-temperature sediment-hosted, massive Zn–Pb–Cu(–Ba) deposits and carbonate-hosted Zn–Pb deposits. A recent study found that at least 10,000 t of extractable germanium is contained in known zinc reserves, particularly those hosted by Mississippi-Valley type deposits, while at least 112,000 t will be found in coal reserves. In 2007 35% of the demand was met by recycled germanium. While it is produced mainly from sphalerite, it is also found in silver, lead, and copper ores. Another source of germanium is fly ash of power plants fueled from coal deposits that contain germanium. Russia and China used this as a source for germanium. Russia's deposits are located in the far east of Sakhalin Island, and northeast of Vladivostok. The deposits in China are located mainly in the lignite mines near Lincang, Yunnan; coal is also mined near Xilinhaote, Inner Mongolia. The ore concentrates are mostly sulfidic; they are converted to the oxides by heating under air in a process known as roasting: Some of the germanium is left in the dust produced, while the rest is converted to germanates, which are then leached (together with zinc) from the cinder by sulfuric acid. After neutralization, only the zinc stays in solution while germanium and other metals precipitate. After removing some of the zinc in the precipitate by the Waelz process, the residing Waelz oxide is leached a second time. The dioxide is obtained as precipitate and converted with chlorine gas or hydrochloric acid to germanium tetrachloride, which has a low boiling point and can be isolated by distillation: Germanium tetrachloride is either hydrolyzed to the oxide (GeO2) or purified by fractional distillation and then hydrolyzed. The highly pure GeO2 is now suitable for the production of germanium glass. It is reduced to the element by reacting it with hydrogen, producing germanium suitable for infrared optics and semiconductor production: The germanium for steel production and other industrial processes is normally reduced using carbon: The major end uses for germanium in 2007, worldwide, were estimated to be: 35% for fiber-optics, 30% infrared optics, 15% polymerization catalysts, and 15% electronics and solar electric applications. The remaining 5% went into such uses as phosphors, metallurgy, and chemotherapy. The notable properties of germania (GeO2) are its high index of refraction and its low optical dispersion. These make it especially useful for wide-angle camera lenses, microscopy, and the core part of optical fibers. It has replaced titania as the dopant for silica fiber, eliminating the subsequent heat treatment that made the fibers brittle. At the end of 2002, the fiber optics industry consumed 60% of the annual germanium use in the United States, but this is less than 10% of worldwide consumption. GeSbTe is a phase change material used for its optic properties, such as that used in rewritable DVDs. Because germanium is transparent in the infrared wavelengths, it is an important infrared optical material that can be readily cut and polished into lenses and windows. It is especially used as the front optic in thermal imaging cameras working in the 8 to 14 micron range for passive thermal imaging and for hot-spot detection in military, mobile night vision, and fire fighting applications. It is used in infrared spectroscopes and other optical equipment that require extremely sensitive infrared detectors. It has a very high refractive index (4.0) and must be coated with anti-reflection agents. Particularly, a very hard special antireflection coating of diamond-like carbon (DLC), refractive index 2.0, is a good match and produces a diamond-hard surface that can withstand much environmental abuse. Germanium can be alloyed with silicon, and silicon–germanium alloys are rapidly becoming an important semiconductor material for high-speed integrated circuits. Circuits utilizing the properties of Si-SiGe heterojunctions can be much faster than those using silicon alone. The SiGe chips, with high-speed properties, can be made with low-cost, well-established production techniques of the silicon chip industry. High efficiency solar panels are a major use of germanium. Because germanium and gallium arsenide have nearly identical lattice constant, germanium substrates can be used to make gallium-arsenide solar cells. Germanium is the substrate of the wafers for high-efficiency multijunction photovoltaic cells for space applications, such as the Mars Exploration Rovers, which use triple-junction gallium arsenide on germanium cells. High-brightness LEDs, used for automobile headlights and to backlight LCD screens, are also an important application. Germanium-on-insulator (GeOI) substrates are seen as a potential replacement for silicon on miniaturized chips. CMOS circuit based on GeOI substrates has been reported recently. Other uses in electronics include phosphors in fluorescent lamps and solid-state light-emitting diodes (LEDs). Germanium transistors are still used in some effects pedals by musicians who wish to reproduce the distinctive tonal character of the "fuzz"-tone from the early rock and roll era, most notably the Dallas Arbiter Fuzz Face. Germanium has been studied as a potential material for implantable bioelectronic sensors that are resorbed in the body without generating harmful hydrogen gas, replacing zinc oxide- and indium gallium zinc oxide-based implementations. Germanium dioxide is also used in catalysts for polymerization in the production of polyethylene terephthalate (PET). The high brilliance of this polyester is especially favored for PET bottles marketed in Japan. In the United States, germanium is not used for polymerization catalysts. Due to the similarity between silica (SiO2) and germanium dioxide (GeO2), the silica stationary phase in some gas chromatography columns can be replaced by GeO2. In recent years germanium has seen increasing use in precious metal alloys. In sterling silver alloys, for instance, it reduces firescale, increases tarnish resistance, and improves precipitation hardening. A tarnish-proof silver alloy trademarked Argentium contains 1.2% germanium. Semiconductor detectors made of single crystal high-purity germanium can precisely identify radiation sources—for example in airport security. Germanium is useful for monochromators for beamlines used in single crystal neutron scattering and synchrotron X-ray diffraction. The reflectivity has advantages over silicon in neutron and high energy X-ray applications. Crystals of high purity germanium are used in detectors for gamma spectroscopy and the search for dark matter. Germanium crystals are also used in X-ray spectrometers for the determination of phosphorus, chlorine and sulfur. Germanium is emerging as an important material for spintronics and spin-based quantum computing applications. In 2010, researchers demonstrated room temperature spin transport and more recently donor electron spins in germanium has been shown to have very long coherence times. Due to its use in advanced electronics and optics, Germanium is considered a technology-critical element (by e.g. the European Union), essential to fulfill the green and digital transition. As China controls 60% of global Germanium production it holds a dominant position over the world's supply chains. On 3 July 2023 China suddenly imposed restrictions on the exports of germanium (and gallium), ratcheting up trade tensions with Western allies. Invoking "national security interests," the Chinese Ministry of Commerce informed that companies that intend to sell products containing germanium would need an export licence. It sees such products as "dual-use" items that may have military purposes and therefore warrant an extra layer of oversight. The new dispute opened a new chapter in the increasingly fierce technology race that has pitted the United States, and to a lesser extent Europe, against China. The US wants its allies to heavily curb, or downright prohibit, advanced electronic components bound to the Chinese market in order to prevent Beijing from securing global technology supremacy. China denied any tit-for-tat intention behind the Germanium export restrictions. Following China's export restrictions, Russian state-owned company Rostec announced an increase in germanium production to meet domestic demand. Germanium is not considered essential to the health of plants or animals. Germanium in the environment has little or no health impact. This is primarily because it usually occurs only as a trace element in ores and carbonaceous materials, and the various industrial and electronic applications involve very small quantities that are not likely to be ingested. For similar reasons, end-use germanium has little impact on the environment as a biohazard. Some reactive intermediate compounds of germanium are poisonous (see precautions, below). Germanium supplements, made from both organic and inorganic germanium, have been marketed as an alternative medicine capable of treating leukemia and lung cancer. There is, however, no medical evidence of benefit; some evidence suggests that such supplements are actively harmful. U.S. Food and Drug Administration (FDA) research has concluded that inorganic germanium, when used as a nutritional supplement, "presents potential human health hazard". Some germanium compounds have been administered by alternative medical practitioners as non-FDA-allowed injectable solutions. Soluble inorganic forms of germanium used at first, notably the citrate-lactate salt, resulted in some cases of renal dysfunction, hepatic steatosis, and peripheral neuropathy in individuals using them over a long term. Plasma and urine germanium concentrations in these individuals, several of whom died, were several orders of magnitude greater than endogenous levels. A more recent organic form, beta-carboxyethylgermanium sesquioxide (propagermanium), has not exhibited the same spectrum of toxic effects. Certain compounds of germanium have low toxicity to mammals, but have toxic effects against certain bacteria. While use of germanium itself does not require precautions, some of germanium's artificially produced compounds are quite reactive and present an immediate hazard to human health on exposure. For example, Germanium tetrachloride and germane (GeH4) are a liquid and gas, respectively, that can be very irritating to the eyes, skin, lungs, and throat.
[ { "paragraph_id": 0, "text": "Germanium is a chemical element; it has symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid in the carbon group that is chemically similar to its group neighbors silicon and tin. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature.", "title": "" }, { "paragraph_id": 1, "text": "Because it seldom appears in high concentration, germanium was discovered comparatively late in the discovery of the elements. Germanium ranks near fiftieth in relative abundance of the elements in the Earth's crust. In 1869, Dmitri Mendeleev predicted its existence and some of its properties from its position on his periodic table, and called the element ekasilicon. In 1886, Clemens Winkler at Freiberg University found the new element, along with silver and sulfur, in the mineral argyrodite. Winkler named the element after his country, Germany. Germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is also recovered commercially from silver, lead, and copper ores.", "title": "" }, { "paragraph_id": 2, "text": "Elemental germanium is used as a semiconductor in transistors and various other electronic devices. Historically, the first decade of semiconductor electronics was based entirely on germanium. Presently, the major end uses are fibre-optic systems, infrared optics, solar cell applications, and light-emitting diodes (LEDs). Germanium compounds are also used for polymerization catalysts and have most recently found use in the production of nanowires. This element forms a large number of organogermanium compounds, such as tetraethylgermanium, useful in organometallic chemistry. Germanium is considered a technology-critical element.", "title": "" }, { "paragraph_id": 3, "text": "Germanium is not thought to be an essential element for any living organism. Similar to silicon and aluminium, naturally-occurring germanium compounds tend to be insoluble in water and thus have little oral toxicity. However, synthetic soluble germanium salts are nephrotoxic, and synthetic chemically reactive germanium compounds with halogens and hydrogen are irritants and toxins.", "title": "" }, { "paragraph_id": 4, "text": "In his report on The Periodic Law of the Chemical Elements in 1869, the Russian chemist Dmitri Mendeleev predicted the existence of several unknown chemical elements, including one that would fill a gap in the carbon family, located between silicon and tin. Because of its position in his periodic table, Mendeleev called it ekasilicon (Es), and he estimated its atomic weight to be 70 (later 72).", "title": "History" }, { "paragraph_id": 5, "text": "In mid-1885, at a mine near Freiberg, Saxony, a new mineral was discovered and named argyrodite because of its high silver content. The chemist Clemens Winkler analyzed this new mineral, which proved to be a combination of silver, sulfur, and a new element. Winkler was able to isolate the new element in 1886 and found it similar to antimony. He initially considered the new element to be eka-antimony, but was soon convinced that it was instead eka-silicon. Before Winkler published his results on the new element, he decided that he would name his element neptunium, since the recent discovery of planet Neptune in 1846 had similarly been preceded by mathematical predictions of its existence. However, the name \"neptunium\" had already been given to another proposed chemical element (though not the element that today bears the name neptunium, which was discovered in 1940). So instead, Winkler named the new element germanium (from the Latin word, Germania, for Germany) in honor of his homeland. Argyrodite proved empirically to be Ag8GeS6. Because this new element showed some similarities with the elements arsenic and antimony, its proper place in the periodic table was under consideration, but its similarities with Dmitri Mendeleev's predicted element \"ekasilicon\" confirmed that place on the periodic table. With further material from 500 kg of ore from the mines in Saxony, Winkler confirmed the chemical properties of the new element in 1887. He also determined an atomic weight of 72.32 by analyzing pure germanium tetrachloride (GeCl4), while Lecoq de Boisbaudran deduced 72.3 by a comparison of the lines in the spark spectrum of the element.", "title": "History" }, { "paragraph_id": 6, "text": "Winkler was able to prepare several new compounds of germanium, including fluorides, chlorides, sulfides, dioxide, and tetraethylgermane (Ge(C2H5)4), the first organogermane. The physical data from those compounds—which corresponded well with Mendeleev's predictions—made the discovery an important confirmation of Mendeleev's idea of element periodicity. Here is a comparison between the prediction and Winkler's data:", "title": "History" }, { "paragraph_id": 7, "text": "Until the late 1930s, germanium was thought to be a poorly conducting metal. Germanium did not become economically significant until after 1945 when its properties as an electronic semiconductor were recognized. During World War II, small amounts of germanium were used in some special electronic devices, mostly diodes. The first major use was the point-contact Schottky diodes for radar pulse detection during the War. The first silicon–germanium alloys were obtained in 1955. Before 1945, only a few hundred kilograms of germanium were produced in smelters each year, but by the end of the 1950s, the annual worldwide production had reached 40 metric tons (44 short tons).", "title": "History" }, { "paragraph_id": 8, "text": "The development of the germanium transistor in 1948 opened the door to countless applications of solid state electronics. From 1950 through the early 1970s, this area provided an increasing market for germanium, but then high-purity silicon began replacing germanium in transistors, diodes, and rectifiers. For example, the company that became Fairchild Semiconductor was founded in 1957 with the express purpose of producing silicon transistors. Silicon has superior electrical properties, but it requires much greater purity that could not be commercially achieved in the early years of semiconductor electronics.", "title": "History" }, { "paragraph_id": 9, "text": "Meanwhile, the demand for germanium for fiber optic communication networks, infrared night vision systems, and polymerization catalysts increased dramatically. These end uses represented 85% of worldwide germanium consumption in 2000. The US government even designated germanium as a strategic and critical material, calling for a 146 ton (132 tonne) supply in the national defense stockpile in 1987.", "title": "History" }, { "paragraph_id": 10, "text": "Germanium differs from silicon in that the supply is limited by the availability of exploitable sources, while the supply of silicon is limited only by production capacity since silicon comes from ordinary sand and quartz. While silicon could be bought in 1998 for less than $10 per kg, the price of germanium was almost $800 per kg.", "title": "History" }, { "paragraph_id": 11, "text": "Under standard conditions, germanium is a brittle, silvery-white, semi-metallic element. This form constitutes an allotrope known as α-germanium, which has a metallic luster and a diamond cubic crystal structure, the same as diamond. While in crystal form, germanium has a displacement threshold energy of 19.7 − 0.5 + 0.6 eV {\\displaystyle 19.7_{-0.5}^{+0.6}~{\\text{eV}}} . At pressures above 120 kbar, germanium becomes the allotrope β-germanium with the same structure as β-tin. Like silicon, gallium, bismuth, antimony, and water, germanium is one of the few substances that expands as it solidifies (i.e. freezes) from the molten state.", "title": "Characteristics" }, { "paragraph_id": 12, "text": "Germanium is a semiconductor having an indirect bandgap, as is crystalline silicon. Zone refining techniques have led to the production of crystalline germanium for semiconductors that has an impurity of only one part in 10, making it one of the purest materials ever obtained. The first semi-metallic material discovered (in 2005) to become a superconductor in the presence of an extremely strong electromagnetic field was an alloy of germanium, uranium, and rhodium.", "title": "Characteristics" }, { "paragraph_id": 13, "text": "Pure germanium is known to spontaneously extrude very long screw dislocations, referred to as germanium whiskers. The growth of these whiskers is one of the primary reasons for the failure of older diodes and transistors made from germanium, as, depending on what they eventually touch, they may lead to an electrical short.", "title": "Characteristics" }, { "paragraph_id": 14, "text": "Elemental germanium starts to oxidize slowly in air at around 250 °C, forming GeO2 . Germanium is insoluble in dilute acids and alkalis but dissolves slowly in hot concentrated sulfuric and nitric acids and reacts violently with molten alkalis to produce germanates ([GeO3]). Germanium occurs mostly in the oxidation state +4 although many +2 compounds are known. Other oxidation states are rare: +3 is found in compounds such as Ge2Cl6, and +3 and +1 are found on the surface of oxides, or negative oxidation states in germanides, such as −4 in Mg2Ge. Germanium cluster anions (Zintl ions) such as Ge4, Ge9, Ge9, [(Ge9)2] have been prepared by the extraction from alloys containing alkali metals and germanium in liquid ammonia in the presence of ethylenediamine or a cryptand. The oxidation states of the element in these ions are not integers—similar to the ozonides O3.", "title": "Characteristics" }, { "paragraph_id": 15, "text": "Two oxides of germanium are known: germanium dioxide (GeO2, germania) and germanium monoxide, (GeO). The dioxide, GeO2, can be obtained by roasting germanium disulfide (GeS2), and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. The monoxide, germanous oxide, can be obtained by the high temperature reaction of GeO2 with elemental Ge. The dioxide (and the related oxides and germanates) exhibits the unusual property of having a high refractive index for visible light, but transparency to infrared light. Bismuth germanate, Bi4Ge3O12 (BGO), is used as a scintillator.", "title": "Characteristics" }, { "paragraph_id": 16, "text": "Binary compounds with other chalcogens are also known, such as the disulfide (GeS2) and diselenide (GeSe2), and the monosulfide (GeS), monoselenide (GeSe), and monotelluride (GeTe). GeS2 forms as a white precipitate when hydrogen sulfide is passed through strongly acid solutions containing Ge(IV). The disulfide is appreciably soluble in water and in solutions of caustic alkalis or alkaline sulfides. Nevertheless, it is not soluble in acidic water, which allowed Winkler to discover the element. By heating the disulfide in a current of hydrogen, the monosulfide (GeS) is formed, which sublimes in thin plates of a dark color and metallic luster, and is soluble in solutions of the caustic alkalis. Upon melting with alkaline carbonates and sulfur, germanium compounds form salts known as thiogermanates.", "title": "Characteristics" }, { "paragraph_id": 17, "text": "Four tetrahalides are known. Under normal conditions GeI4 is a solid, GeF4 a gas and the others volatile liquids. For example, germanium tetrachloride, GeCl4, is obtained as a colorless fuming liquid boiling at 83.1 °C by heating the metal with chlorine. All the tetrahalides are readily hydrolyzed to hydrated germanium dioxide. GeCl4 is used in the production of organogermanium compounds. All four dihalides are known and in contrast to the tetrahalides are polymeric solids. Additionally Ge2Cl6 and some higher compounds of formula GenCl2n+2 are known. The unusual compound Ge6Cl16 has been prepared that contains the Ge5Cl12 unit with a neopentane structure.", "title": "Characteristics" }, { "paragraph_id": 18, "text": "Germane (GeH4) is a compound similar in structure to methane. Polygermanes—compounds that are similar to alkanes—with formula GenH2n+2 containing up to five germanium atoms are known. The germanes are less volatile and less reactive than their corresponding silicon analogues. GeH4 reacts with alkali metals in liquid ammonia to form white crystalline MGeH3 which contain the GeH3 anion. The germanium hydrohalides with one, two and three halogen atoms are colorless reactive liquids.", "title": "Characteristics" }, { "paragraph_id": 19, "text": "The first organogermanium compound was synthesized by Winkler in 1887; the reaction of germanium tetrachloride with diethylzinc yielded tetraethylgermane (Ge(C2H5)4). Organogermanes of the type R4Ge (where R is an alkyl) such as tetramethylgermane (Ge(CH3)4) and tetraethylgermane are accessed through the cheapest available germanium precursor germanium tetrachloride and alkyl nucleophiles. Organic germanium hydrides such as isobutylgermane ((CH3)2CHCH2GeH3) were found to be less hazardous and may be used as a liquid substitute for toxic germane gas in semiconductor applications. Many germanium reactive intermediates are known: germyl free radicals, germylenes (similar to carbenes), and germynes (similar to carbynes). The organogermanium compound 2-carboxyethylgermasesquioxane was first reported in the 1970s, and for a while was used as a dietary supplement and thought to possibly have anti-tumor qualities.", "title": "Characteristics" }, { "paragraph_id": 20, "text": "Using a ligand called Eind (1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl) germanium is able to form a double bond with oxygen (germanone). Germanium hydride and germanium tetrahydride are very flammable and even explosive when mixed with air.", "title": "Characteristics" }, { "paragraph_id": 21, "text": "Germanium occurs in five natural isotopes: Ge, Ge, Ge, Ge, and Ge. Of these, Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78×10 years. Ge is the most common isotope, having a natural abundance of approximately 36%. Ge is the least common with a natural abundance of approximately 7%. When bombarded with alpha particles, the isotope Ge will generate stable Se, releasing high energy electrons in the process. Because of this, it is used in combination with radon for nuclear batteries.", "title": "Characteristics" }, { "paragraph_id": 22, "text": "At least 27 radioisotopes have also been synthesized, ranging in atomic mass from 58 to 89. The most stable of these is Ge, decaying by electron capture with a half-life of 270.95 days. The least stable is Ge, with a half-life of 30 ms. While most of germanium's radioisotopes decay by beta decay, Ge and Ge decay by β delayed proton emission. Ge through Ge isotopes also exhibit minor β delayed neutron emission decay paths.", "title": "Characteristics" }, { "paragraph_id": 23, "text": "Germanium is created by stellar nucleosynthesis, mostly by the s-process in asymptotic giant branch stars. The s-process is a slow neutron capture of lighter elements inside pulsating red giant stars. Germanium has been detected in some of the most distant stars and in the atmosphere of Jupiter.", "title": "Characteristics" }, { "paragraph_id": 24, "text": "Germanium's abundance in the Earth's crust is approximately 1.6 ppm. Only a few minerals like argyrodite, briartite, germanite, renierite and sphalerite contain appreciable amounts of germanium. Only few of them (especially germanite) are, very rarely, found in mineable amounts. Some zinc–copper–lead ore bodies contain enough germanium to justify extraction from the final ore concentrate. An unusual natural enrichment process causes a high content of germanium in some coal seams, discovered by Victor Moritz Goldschmidt during a broad survey for germanium deposits. The highest concentration ever found was in Hartley coal ash with as much as 1.6% germanium. The coal deposits near Xilinhaote, Inner Mongolia, contain an estimated 1600 tonnes of germanium.", "title": "Characteristics" }, { "paragraph_id": 25, "text": "About 118 tonnes of germanium were produced in 2011 worldwide, mostly in China (80 t), Russia (5 t) and United States (3 t). Germanium is recovered as a by-product from sphalerite zinc ores where it is concentrated in amounts as great as 0.3%, especially from low-temperature sediment-hosted, massive Zn–Pb–Cu(–Ba) deposits and carbonate-hosted Zn–Pb deposits. A recent study found that at least 10,000 t of extractable germanium is contained in known zinc reserves, particularly those hosted by Mississippi-Valley type deposits, while at least 112,000 t will be found in coal reserves. In 2007 35% of the demand was met by recycled germanium.", "title": "Production" }, { "paragraph_id": 26, "text": "While it is produced mainly from sphalerite, it is also found in silver, lead, and copper ores. Another source of germanium is fly ash of power plants fueled from coal deposits that contain germanium. Russia and China used this as a source for germanium. Russia's deposits are located in the far east of Sakhalin Island, and northeast of Vladivostok. The deposits in China are located mainly in the lignite mines near Lincang, Yunnan; coal is also mined near Xilinhaote, Inner Mongolia.", "title": "Production" }, { "paragraph_id": 27, "text": "The ore concentrates are mostly sulfidic; they are converted to the oxides by heating under air in a process known as roasting:", "title": "Production" }, { "paragraph_id": 28, "text": "Some of the germanium is left in the dust produced, while the rest is converted to germanates, which are then leached (together with zinc) from the cinder by sulfuric acid. After neutralization, only the zinc stays in solution while germanium and other metals precipitate. After removing some of the zinc in the precipitate by the Waelz process, the residing Waelz oxide is leached a second time. The dioxide is obtained as precipitate and converted with chlorine gas or hydrochloric acid to germanium tetrachloride, which has a low boiling point and can be isolated by distillation:", "title": "Production" }, { "paragraph_id": 29, "text": "Germanium tetrachloride is either hydrolyzed to the oxide (GeO2) or purified by fractional distillation and then hydrolyzed. The highly pure GeO2 is now suitable for the production of germanium glass. It is reduced to the element by reacting it with hydrogen, producing germanium suitable for infrared optics and semiconductor production:", "title": "Production" }, { "paragraph_id": 30, "text": "The germanium for steel production and other industrial processes is normally reduced using carbon:", "title": "Production" }, { "paragraph_id": 31, "text": "The major end uses for germanium in 2007, worldwide, were estimated to be: 35% for fiber-optics, 30% infrared optics, 15% polymerization catalysts, and 15% electronics and solar electric applications. The remaining 5% went into such uses as phosphors, metallurgy, and chemotherapy.", "title": "Applications" }, { "paragraph_id": 32, "text": "The notable properties of germania (GeO2) are its high index of refraction and its low optical dispersion. These make it especially useful for wide-angle camera lenses, microscopy, and the core part of optical fibers. It has replaced titania as the dopant for silica fiber, eliminating the subsequent heat treatment that made the fibers brittle. At the end of 2002, the fiber optics industry consumed 60% of the annual germanium use in the United States, but this is less than 10% of worldwide consumption. GeSbTe is a phase change material used for its optic properties, such as that used in rewritable DVDs.", "title": "Applications" }, { "paragraph_id": 33, "text": "Because germanium is transparent in the infrared wavelengths, it is an important infrared optical material that can be readily cut and polished into lenses and windows. It is especially used as the front optic in thermal imaging cameras working in the 8 to 14 micron range for passive thermal imaging and for hot-spot detection in military, mobile night vision, and fire fighting applications. It is used in infrared spectroscopes and other optical equipment that require extremely sensitive infrared detectors. It has a very high refractive index (4.0) and must be coated with anti-reflection agents. Particularly, a very hard special antireflection coating of diamond-like carbon (DLC), refractive index 2.0, is a good match and produces a diamond-hard surface that can withstand much environmental abuse.", "title": "Applications" }, { "paragraph_id": 34, "text": "Germanium can be alloyed with silicon, and silicon–germanium alloys are rapidly becoming an important semiconductor material for high-speed integrated circuits. Circuits utilizing the properties of Si-SiGe heterojunctions can be much faster than those using silicon alone. The SiGe chips, with high-speed properties, can be made with low-cost, well-established production techniques of the silicon chip industry.", "title": "Applications" }, { "paragraph_id": 35, "text": "High efficiency solar panels are a major use of germanium. Because germanium and gallium arsenide have nearly identical lattice constant, germanium substrates can be used to make gallium-arsenide solar cells. Germanium is the substrate of the wafers for high-efficiency multijunction photovoltaic cells for space applications, such as the Mars Exploration Rovers, which use triple-junction gallium arsenide on germanium cells. High-brightness LEDs, used for automobile headlights and to backlight LCD screens, are also an important application.", "title": "Applications" }, { "paragraph_id": 36, "text": "Germanium-on-insulator (GeOI) substrates are seen as a potential replacement for silicon on miniaturized chips. CMOS circuit based on GeOI substrates has been reported recently. Other uses in electronics include phosphors in fluorescent lamps and solid-state light-emitting diodes (LEDs). Germanium transistors are still used in some effects pedals by musicians who wish to reproduce the distinctive tonal character of the \"fuzz\"-tone from the early rock and roll era, most notably the Dallas Arbiter Fuzz Face.", "title": "Applications" }, { "paragraph_id": 37, "text": "Germanium has been studied as a potential material for implantable bioelectronic sensors that are resorbed in the body without generating harmful hydrogen gas, replacing zinc oxide- and indium gallium zinc oxide-based implementations.", "title": "Applications" }, { "paragraph_id": 38, "text": "Germanium dioxide is also used in catalysts for polymerization in the production of polyethylene terephthalate (PET). The high brilliance of this polyester is especially favored for PET bottles marketed in Japan. In the United States, germanium is not used for polymerization catalysts.", "title": "Applications" }, { "paragraph_id": 39, "text": "Due to the similarity between silica (SiO2) and germanium dioxide (GeO2), the silica stationary phase in some gas chromatography columns can be replaced by GeO2.", "title": "Applications" }, { "paragraph_id": 40, "text": "In recent years germanium has seen increasing use in precious metal alloys. In sterling silver alloys, for instance, it reduces firescale, increases tarnish resistance, and improves precipitation hardening. A tarnish-proof silver alloy trademarked Argentium contains 1.2% germanium.", "title": "Applications" }, { "paragraph_id": 41, "text": "Semiconductor detectors made of single crystal high-purity germanium can precisely identify radiation sources—for example in airport security. Germanium is useful for monochromators for beamlines used in single crystal neutron scattering and synchrotron X-ray diffraction. The reflectivity has advantages over silicon in neutron and high energy X-ray applications. Crystals of high purity germanium are used in detectors for gamma spectroscopy and the search for dark matter. Germanium crystals are also used in X-ray spectrometers for the determination of phosphorus, chlorine and sulfur.", "title": "Applications" }, { "paragraph_id": 42, "text": "Germanium is emerging as an important material for spintronics and spin-based quantum computing applications. In 2010, researchers demonstrated room temperature spin transport and more recently donor electron spins in germanium has been shown to have very long coherence times.", "title": "Applications" }, { "paragraph_id": 43, "text": "Due to its use in advanced electronics and optics, Germanium is considered a technology-critical element (by e.g. the European Union), essential to fulfill the green and digital transition. As China controls 60% of global Germanium production it holds a dominant position over the world's supply chains. On 3 July 2023 China suddenly imposed restrictions on the exports of germanium (and gallium), ratcheting up trade tensions with Western allies. Invoking \"national security interests,\" the Chinese Ministry of Commerce informed that companies that intend to sell products containing germanium would need an export licence. It sees such products as \"dual-use\" items that may have military purposes and therefore warrant an extra layer of oversight. The new dispute opened a new chapter in the increasingly fierce technology race that has pitted the United States, and to a lesser extent Europe, against China. The US wants its allies to heavily curb, or downright prohibit, advanced electronic components bound to the Chinese market in order to prevent Beijing from securing global technology supremacy. China denied any tit-for-tat intention behind the Germanium export restrictions. Following China's export restrictions, Russian state-owned company Rostec announced an increase in germanium production to meet domestic demand.", "title": "Strategic importance" }, { "paragraph_id": 44, "text": "Germanium is not considered essential to the health of plants or animals. Germanium in the environment has little or no health impact. This is primarily because it usually occurs only as a trace element in ores and carbonaceous materials, and the various industrial and electronic applications involve very small quantities that are not likely to be ingested. For similar reasons, end-use germanium has little impact on the environment as a biohazard. Some reactive intermediate compounds of germanium are poisonous (see precautions, below).", "title": "Germanium and health" }, { "paragraph_id": 45, "text": "Germanium supplements, made from both organic and inorganic germanium, have been marketed as an alternative medicine capable of treating leukemia and lung cancer. There is, however, no medical evidence of benefit; some evidence suggests that such supplements are actively harmful. U.S. Food and Drug Administration (FDA) research has concluded that inorganic germanium, when used as a nutritional supplement, \"presents potential human health hazard\".", "title": "Germanium and health" }, { "paragraph_id": 46, "text": "Some germanium compounds have been administered by alternative medical practitioners as non-FDA-allowed injectable solutions. Soluble inorganic forms of germanium used at first, notably the citrate-lactate salt, resulted in some cases of renal dysfunction, hepatic steatosis, and peripheral neuropathy in individuals using them over a long term. Plasma and urine germanium concentrations in these individuals, several of whom died, were several orders of magnitude greater than endogenous levels. A more recent organic form, beta-carboxyethylgermanium sesquioxide (propagermanium), has not exhibited the same spectrum of toxic effects.", "title": "Germanium and health" }, { "paragraph_id": 47, "text": "Certain compounds of germanium have low toxicity to mammals, but have toxic effects against certain bacteria.", "title": "Germanium and health" }, { "paragraph_id": 48, "text": "While use of germanium itself does not require precautions, some of germanium's artificially produced compounds are quite reactive and present an immediate hazard to human health on exposure. For example, Germanium tetrachloride and germane (GeH4) are a liquid and gas, respectively, that can be very irritating to the eyes, skin, lungs, and throat.", "title": "Germanium and health" }, { "paragraph_id": 49, "text": "", "title": "External links" } ]
Germanium is a chemical element; it has symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid in the carbon group that is chemically similar to its group neighbors silicon and tin. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Because it seldom appears in high concentration, germanium was discovered comparatively late in the discovery of the elements. Germanium ranks near fiftieth in relative abundance of the elements in the Earth's crust. In 1869, Dmitri Mendeleev predicted its existence and some of its properties from its position on his periodic table, and called the element ekasilicon. In 1886, Clemens Winkler at Freiberg University found the new element, along with silver and sulfur, in the mineral argyrodite. Winkler named the element after his country, Germany. Germanium is mined primarily from sphalerite, though germanium is also recovered commercially from silver, lead, and copper ores. Elemental germanium is used as a semiconductor in transistors and various other electronic devices. Historically, the first decade of semiconductor electronics was based entirely on germanium. Presently, the major end uses are fibre-optic systems, infrared optics, solar cell applications, and light-emitting diodes (LEDs). Germanium compounds are also used for polymerization catalysts and have most recently found use in the production of nanowires. This element forms a large number of organogermanium compounds, such as tetraethylgermanium, useful in organometallic chemistry. Germanium is considered a technology-critical element. Germanium is not thought to be an essential element for any living organism. Similar to silicon and aluminium, naturally-occurring germanium compounds tend to be insoluble in water and thus have little oral toxicity. However, synthetic soluble germanium salts are nephrotoxic, and synthetic chemically reactive germanium compounds with halogens and hydrogen are irritants and toxins.
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https://en.wikipedia.org/wiki/Germanium
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Gadolinium
Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with an attraction to a magnetic field higher than that of nickel. Above this temperature it is the most paramagnetic element. It is found in nature only in an oxidized form. When separated, it usually has impurities of the other rare-earths because of their similar chemical properties. Gadolinium was discovered in 1880 by Jean Charles de Marignac, who detected its oxide by using spectroscopy. It is named after the mineral gadolinite, one of the minerals in which gadolinium is found, itself named for the Finnish chemist Johan Gadolin. Pure gadolinium was first isolated by the chemist Paul-Émile Lecoq de Boisbaudran around 1886. Gadolinium possesses unusual metallurgical properties, to the extent that as little as 1% of gadolinium can significantly improve the workability and resistance to oxidation at high temperatures of iron, chromium, and related metals. Gadolinium as a metal or a salt absorbs neutrons and is, therefore, used sometimes for shielding in neutron radiography and in nuclear reactors. Like most of the rare earths, gadolinium forms trivalent ions with fluorescent properties, and salts of gadolinium(III) are used as phosphors in various applications. Gadolinium(III) ions in water-soluble salts are highly toxic to mammals. However, chelated gadolinium(III) compounds prevent the gadolinium(III) from being exposed to the organism and the majority is excreted by healthy kidneys before it can deposit in tissues. Because of its paramagnetic properties, solutions of chelated organic gadolinium complexes are used as intravenously administered gadolinium-based MRI contrast agents in medical magnetic resonance imaging. Varying amounts deposit in tissues of the brain, cardiac muscle, kidney, other organs and the skin, mainly depending on kidney function, structure of the chelates (linear or macrocyclic) and the dose administered. Gadolinium is the eighth member of the lanthanide series. In the periodic table, it appears between the elements europium to its left and terbium to its right, and above the actinide curium. It is a silvery-white, malleable, ductile rare-earth element. Its 64 electrons are arranged in the configuration of [Xe]4f5d6s, of which the ten 4f, 5d, and 6s electrons are valence. Like most other metals in the lanthanide series, three electrons are usually available as valence electrons. The remaining 4f electrons are too strongly bound: this is because the 4f orbitals penetrate the most through the inert xenon core of electrons to the nucleus, followed by 5d and 6s, and this increases with higher ionic charge. Gadolinium crystallizes in the hexagonal close-packed α-form at room temperature. At temperatures above 1,235 °C (2,255 °F), it forms or transforms into its β-form, which has a body-centered cubic structure. The isotope gadolinium-157 has the highest thermal-neutron capture cross-section among any stable nuclide: about 259,000 barns. Only xenon-135 has a higher capture cross-section, about 2.0 million barns, but this isotope is radioactive. Gadolinium is believed to be ferromagnetic at temperatures below 20 °C (68 °F) and is strongly paramagnetic above this temperature. In fact, at body temperature, gadolinium exhibits the greatest paramagnetic effect of any element. There is evidence that gadolinium is a helical antiferromagnetic, rather than a ferromagnetic, below 20 °C (68 °F). Gadolinium demonstrates a magnetocaloric effect whereby its temperature increases when it enters a magnetic field and decreases when it leaves the magnetic field. A significant magnetocaloric effect is observed at higher temperatures, up to about 300 kelvins, in the compounds Gd5(Si1-xGex)4. Individual gadolinium atoms can be isolated by encapsulating them into fullerene molecules, where they can be visualized with a transmission electron microscope. Individual Gd atoms and small Gd clusters can be incorporated into carbon nanotubes. Gadolinium combines with most elements to form Gd(III) derivatives. It also combines with nitrogen, carbon, sulfur, phosphorus, boron, selenium, silicon, and arsenic at elevated temperatures, forming binary compounds. Unlike the other rare-earth elements, metallic gadolinium is relatively stable in dry air. However, it tarnishes quickly in moist air, forming a loosely-adhering gadolinium(III) oxide (Gd2O3): which spalls off, exposing more surface to oxidation. Gadolinium is a strong reducing agent, which reduces oxides of several metals into their elements. Gadolinium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form gadolinium(III) hydroxide (Gd(OH)3): Gadolinium metal is attacked readily by dilute sulfuric acid to form solutions containing the colorless Gd(III) ions, which exist as [Gd(H2O)9] complexes: In the great majority of its compounds, like many rare-earth metals, gadolinium adopts the oxidation state +3. However, gadolinium can be found on rare occasions in the 0, +1 and +2 oxidation states. All four trihalides are known. All are white, except for the iodide, which is yellow. Most commonly encountered of the halides is gadolinium(III) chloride (GdCl3). The oxide dissolves in acids to give the salts, such as gadolinium(III) nitrate. Gadolinium(III), like most lanthanide ions, forms complexes with high coordination numbers. This tendency is illustrated by the use of the chelating agent DOTA, an octadentate ligand. Salts of [Gd(DOTA)] are useful in magnetic resonance imaging. A variety of related chelate complexes have been developed, including gadodiamide. Reduced gadolinium compounds are known, especially in the solid state. Gadolinium(II) halides are obtained by heating Gd(III) halides in presence of metallic Gd in tantalum containers. Gadolinium also forms the sesquichloride Gd2Cl3, which can be further reduced to GdCl by annealing at 800 °C (1,470 °F). This gadolinium(I) chloride forms platelets with layered graphite-like structure. Naturally occurring gadolinium is composed of six stable isotopes, Gd, Gd, Gd, Gd, Gd and Gd, and one radioisotope, Gd, with the isotope Gd being the most abundant (24.8% natural abundance). The predicted double beta decay of Gd has never been observed (an experimental lower limit on its half-life of more than 1.3×10 years has been measured). Thirty-three radioisotopes of gadolinium have been observed, with the most stable being Gd (naturally occurring), with a half-life of about 1.08×10 years, and Gd, with a half-life of 1.79×10 years. All of the remaining radioactive isotopes have half-lives of less than 75 years. The majority of these have half-lives of less than 25 seconds. Gadolinium isotopes have four metastable isomers, with the most stable being Gd (t1/2= 110 seconds), Gd (t1/2= 85 seconds) and Gd (t1/2= 24.5 seconds). The isotopes with atomic masses lower than the most abundant stable isotope, Gd, primarily decay by electron capture to isotopes of europium. At higher atomic masses, the primary decay mode is beta decay, and the primary products are isotopes of terbium. Gadolinium is named after the mineral gadolinite, in turn named after Finnish chemist and geologist Johan Gadolin. In 1880, the Swiss chemist Jean Charles Galissard de Marignac observed the spectroscopic lines from gadolinium in samples of gadolinite (which actually contains relatively little gadolinium, but enough to show a spectrum) and in the separate mineral cerite. The latter mineral proved to contain far more of the element with the new spectral line. De Marignac eventually separated a mineral oxide from cerite, which he realized was the oxide of this new element. He named the oxide "gadolinia". Because he realized that "gadolinia" was the oxide of a new element, he is credited with the discovery of gadolinium. The French chemist Paul-Émile Lecoq de Boisbaudran carried out the separation of gadolinium metal from gadolinia in 1886. Gadolinium is a constituent in many minerals such as monazite and bastnäsite. The metal is too reactive to exist naturally. Paradoxically, as noted above, the mineral gadolinite actually contains only traces of this element. The abundance in the Earth's crust is about 6.2 mg/kg. The main mining areas are in China, the US, Brazil, Sri Lanka, India, and Australia with reserves expected to exceed one million tonnes. World production of pure gadolinium is about 400 tonnes per year. The only known mineral with essential gadolinium, lepersonnite-(Gd), is very rare. Gadolinium is produced both from monazite and bastnäsite. Gadolinium metal is obtained from its oxide or salts by heating it with calcium at 1,450 °C (2,640 °F) in an argon atmosphere. Sponge gadolinium can be produced by reducing molten GdCl3 with an appropriate metal at temperatures below 1,312 °C (2,394 °F) (the melting point of Gd) at reduced pressure. Gadolinium has no large-scale applications, but it has a variety of specialized uses. Because gadolinium has a high neutron cross-section, it is effective for use with neutron radiography and in shielding of nuclear reactors. It is used as a secondary, emergency shut-down measure in some nuclear reactors, particularly of the CANDU reactor type. Gadolinium is used in nuclear marine propulsion systems as a burnable poison. The use of gadolinium in neutron capture therapy to target tumors has been investigated, and gadolinium-containing compounds have proven promising. Gadolinium possesses unusual metallurgic properties, with as little as 1% of gadolinium improving the workability and resistance of iron, chromium, and related alloys to high temperatures and oxidation. Gadolinium is paramagnetic at room temperature, with a ferromagnetic Curie point of 20 °C (68 °F). Paramagnetic ions, such as gadolinium, increase nuclear spin relaxation rates, making gadolinium useful as a contrast agent for magnetic resonance imaging (MRI). Solutions of organic gadolinium complexes and gadolinium compounds are used as intravenous contrast agents to enhance images in medical and magnetic resonance angiography (MRA) procedures. Magnevist is the most widespread example. Nanotubes packed with gadolinium, called "gadonanotubes", are 40 times more effective than the usual gadolinium contrast agent. Traditional gadolinium-based contrast agents are un-targeted, generally distributing throughout the body after injection, but will not readily cross the intact blood–brain barrier. Brain tumors, and other disorders that degrade the blood-brain barrier, allow these agents to penetrate into the brain and facilitate their detection by contrast-enhanced MRI. Similarly, delayed gadolinium-enhanced magnetic resonance imaging of cartilage uses an ionic compound agent, originally Magnevist, that is excluded from healthy cartilage based on electrostatic repulsion but will enter proteoglycan-depleted cartilage in diseases such as osteoarthritis. Gadolinium is used as a phosphor in medical imaging. It is contained in the phosphor layer of X-ray detectors, suspended in a polymer matrix. Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) at the phosphor layer converts the X-rays released from the source into light. This material emits green light at 540 nm because of the presence of Tb, which is very useful for enhancing the imaging quality. The energy conversion of Gd is up to 20%, which means that one fifth of the X-ray energy striking the phosphor layer can be converted into visible photons. Gadolinium oxyorthosilicate (Gd2SiO5, GSO; usually doped by 0.1–1.0% of Ce) is a single crystal that is used as a scintillator in medical imaging such as positron emission tomography, and for detecting neutrons. Gadolinium compounds are also used for making green phosphors for color TV tubes. Gadolinium-153 is produced in a nuclear reactor from elemental europium or enriched gadolinium targets. It has a half-life of 240±10 days and emits gamma radiation with strong peaks at 41 keV and 102 keV. It is used in many quality-assurance applications, such as line sources and calibration phantoms, to ensure that nuclear-medicine imaging systems operate correctly and produce useful images of radioisotope distribution inside the patient. It is also used as a gamma-ray source in X-ray absorption measurements and in bone density gauges for osteoporosis screening. Gadolinium is used for making gadolinium yttrium garnet (Gd:Y3Al5O12), which has microwave applications and is used in fabrication of various optical components and as substrate material for magneto-optical films. Gadolinium can also serve as an electrolyte in solid oxide fuel cells (SOFCs). Using gadolinium as a dopant for materials like cerium oxide (in the form of gadolinium-doped ceria) gives an electrolyte having both high ionic conductivity and low operating temperatures. Research is being conducted on magnetic refrigeration near room temperature, which could provide significant efficiency and environmental advantages over conventional refrigeration methods. Gadolinium-based materials, such as Gd5(SixGe1−x)4, are currently the most promising materials, owing to their high Curie temperature and giant magnetocaloric effect. Pure Gd itself exhibits a large magnetocaloric effect near its Curie temperature of 20 °C (68 °F), and this has sparked interest into producing Gd alloys having a larger effect and tunable Curie temperature. In Gd5(SixGe1−x)4, Si and Ge compositions can be varied to adjust the Curie temperature. Gadolinium barium copper oxide (GdBCO) is a superconductor with applications in superconducting motors or generators such as in wind turbines. It can be manufactured in the same way as the most widely researched cuprate high temperature superconductor, yttrium barium copper oxide (YBCO) and uses an analogous chemical composition (GdBa2Cu3O7−δ ). It was used in 2014 to set a new world record for the highest trapped magnetic field in a bulk high temperature superconductor, with a field of 17.6T being trapped within two GdBCO bulks. Gadolinium is used for antineutrino detection in the Japanese Super-Kamiokande detector in order to sense supernova explosions. Low-energy neutrons that arise from antineutrino absorption by protons in the detector's ultrapure water are captured by gadolinium nuclei, which subsequently emit gamma rays that are detected as part of the antineutrino signature. Gadolinium gallium garnet (GGG, Gd3Ga5O12) was used for imitation diamonds and for computer bubble memory. As a free ion, gadolinium is reported often to be highly toxic, but MRI contrast agents are chelated compounds and are considered safe enough to be used in most persons. The toxicity of free gadolinium ions in animals is due to interference with a number of calcium-ion channel dependent processes. The 50% lethal dose is about 0.34 mmol/kg (IV, mouse) or 100–200 mg/kg. Toxicity studies in rodents show that chelation of gadolinium (which also improves its solubility) decreases its toxicity with regard to the free ion by a factor of 31 (i.e., the lethal dose for the Gd-chelate increases by 31 times). It is believed therefore that clinical toxicity of gadolinium-based contrast agents (GBCAs) in humans will depend on the strength of the chelating agent; however this research is still not complete. About a dozen different Gd-chelated agents have been approved as MRI contrast agents around the world. In patients with kidney failure, there is a risk of a rare but serious illness called nephrogenic systemic fibrosis (NSF) that is caused by the use of gadolinium based contrast agents. The disease resembles scleromyxedema and to some extent scleroderma. It may occur months after a contrast agent has been injected. Its association with gadolinium and not the carrier molecule is confirmed by its occurrence with various contrast materials in which gadolinium is carried by very different carrier molecules. Due to this, it is not recommended to use these agents for any individual with end-stage kidney failure as they will require emergent dialysis. Similar but not identical symptoms to NSF may occur in subjects with normal or near-normal renal function within hours to 2 months following the administration of GBCAs; the name "gadolinium deposition disease" (GDD) has been proposed for this condition, which occurs in the absence of pre-existent disease or subsequently developed disease of an alternate known process. A 2016 study reported numerous anecdotal cases of GDD. However, in that study, participants were recruited from online support groups for subjects self-identified as having gadolinium toxicity, and no relevant medical history or data were collected. There have yet to be definitive scientific studies proving the existence of the condition. Included in the current guidelines from the Canadian Association of Radiologists are that dialysis patients should only receive gadolinium agents where essential and that they should receive dialysis after the exam. If a contrast-enhanced MRI must be performed on a dialysis patient, it is recommended that certain high-risk contrast agents be avoided but not that a lower dose be considered. The American College of Radiology recommends that contrast-enhanced MRI examinations be performed as closely before dialysis as possible as a precautionary measure, although this has not been proven to reduce the likelihood of developing NSF. The FDA recommends that potential for gadolinium retention be considered when choosing the type of GBCA used in patients requiring multiple lifetime doses, pregnant women, children, and patients with inflammatory conditions. Anaphylactoid reactions are rare, occurring in approximately 0.03–0.1%. Long-term environmental impacts of gadolinium contamination due to human usage is a topic of ongoing research. Gadolinium has no known native biological role, but its compounds are used as research tools in biomedicine. Gd compounds are components of MRI contrast agents. It is used in various ion channel electrophysiology experiments to block sodium leak channels and stretch activated ion channels. Gadolinium has recently been used to measure the distance between two points in a protein via electron paramagnetic resonance, something that gadolinium is especially amenable to thanks to EPR sensitivity at w-band (95 GHz) frequencies.
[ { "paragraph_id": 0, "text": "Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with an attraction to a magnetic field higher than that of nickel. Above this temperature it is the most paramagnetic element. It is found in nature only in an oxidized form. When separated, it usually has impurities of the other rare-earths because of their similar chemical properties.", "title": "" }, { "paragraph_id": 1, "text": "Gadolinium was discovered in 1880 by Jean Charles de Marignac, who detected its oxide by using spectroscopy. It is named after the mineral gadolinite, one of the minerals in which gadolinium is found, itself named for the Finnish chemist Johan Gadolin. Pure gadolinium was first isolated by the chemist Paul-Émile Lecoq de Boisbaudran around 1886.", "title": "" }, { "paragraph_id": 2, "text": "Gadolinium possesses unusual metallurgical properties, to the extent that as little as 1% of gadolinium can significantly improve the workability and resistance to oxidation at high temperatures of iron, chromium, and related metals. Gadolinium as a metal or a salt absorbs neutrons and is, therefore, used sometimes for shielding in neutron radiography and in nuclear reactors.", "title": "" }, { "paragraph_id": 3, "text": "Like most of the rare earths, gadolinium forms trivalent ions with fluorescent properties, and salts of gadolinium(III) are used as phosphors in various applications.", "title": "" }, { "paragraph_id": 4, "text": "Gadolinium(III) ions in water-soluble salts are highly toxic to mammals. However, chelated gadolinium(III) compounds prevent the gadolinium(III) from being exposed to the organism and the majority is excreted by healthy kidneys before it can deposit in tissues. Because of its paramagnetic properties, solutions of chelated organic gadolinium complexes are used as intravenously administered gadolinium-based MRI contrast agents in medical magnetic resonance imaging. Varying amounts deposit in tissues of the brain, cardiac muscle, kidney, other organs and the skin, mainly depending on kidney function, structure of the chelates (linear or macrocyclic) and the dose administered.", "title": "" }, { "paragraph_id": 5, "text": "Gadolinium is the eighth member of the lanthanide series. In the periodic table, it appears between the elements europium to its left and terbium to its right, and above the actinide curium. It is a silvery-white, malleable, ductile rare-earth element. Its 64 electrons are arranged in the configuration of [Xe]4f5d6s, of which the ten 4f, 5d, and 6s electrons are valence.", "title": "Characteristics" }, { "paragraph_id": 6, "text": "Like most other metals in the lanthanide series, three electrons are usually available as valence electrons. The remaining 4f electrons are too strongly bound: this is because the 4f orbitals penetrate the most through the inert xenon core of electrons to the nucleus, followed by 5d and 6s, and this increases with higher ionic charge. Gadolinium crystallizes in the hexagonal close-packed α-form at room temperature. At temperatures above 1,235 °C (2,255 °F), it forms or transforms into its β-form, which has a body-centered cubic structure.", "title": "Characteristics" }, { "paragraph_id": 7, "text": "The isotope gadolinium-157 has the highest thermal-neutron capture cross-section among any stable nuclide: about 259,000 barns. Only xenon-135 has a higher capture cross-section, about 2.0 million barns, but this isotope is radioactive.", "title": "Characteristics" }, { "paragraph_id": 8, "text": "Gadolinium is believed to be ferromagnetic at temperatures below 20 °C (68 °F) and is strongly paramagnetic above this temperature. In fact, at body temperature, gadolinium exhibits the greatest paramagnetic effect of any element. There is evidence that gadolinium is a helical antiferromagnetic, rather than a ferromagnetic, below 20 °C (68 °F). Gadolinium demonstrates a magnetocaloric effect whereby its temperature increases when it enters a magnetic field and decreases when it leaves the magnetic field. A significant magnetocaloric effect is observed at higher temperatures, up to about 300 kelvins, in the compounds Gd5(Si1-xGex)4.", "title": "Characteristics" }, { "paragraph_id": 9, "text": "Individual gadolinium atoms can be isolated by encapsulating them into fullerene molecules, where they can be visualized with a transmission electron microscope. Individual Gd atoms and small Gd clusters can be incorporated into carbon nanotubes.", "title": "Characteristics" }, { "paragraph_id": 10, "text": "Gadolinium combines with most elements to form Gd(III) derivatives. It also combines with nitrogen, carbon, sulfur, phosphorus, boron, selenium, silicon, and arsenic at elevated temperatures, forming binary compounds.", "title": "Characteristics" }, { "paragraph_id": 11, "text": "Unlike the other rare-earth elements, metallic gadolinium is relatively stable in dry air. However, it tarnishes quickly in moist air, forming a loosely-adhering gadolinium(III) oxide (Gd2O3):", "title": "Characteristics" }, { "paragraph_id": 12, "text": "which spalls off, exposing more surface to oxidation.", "title": "Characteristics" }, { "paragraph_id": 13, "text": "Gadolinium is a strong reducing agent, which reduces oxides of several metals into their elements. Gadolinium is quite electropositive and reacts slowly with cold water and quite quickly with hot water to form gadolinium(III) hydroxide (Gd(OH)3):", "title": "Characteristics" }, { "paragraph_id": 14, "text": "Gadolinium metal is attacked readily by dilute sulfuric acid to form solutions containing the colorless Gd(III) ions, which exist as [Gd(H2O)9] complexes:", "title": "Characteristics" }, { "paragraph_id": 15, "text": "In the great majority of its compounds, like many rare-earth metals, gadolinium adopts the oxidation state +3. However, gadolinium can be found on rare occasions in the 0, +1 and +2 oxidation states. All four trihalides are known. All are white, except for the iodide, which is yellow. Most commonly encountered of the halides is gadolinium(III) chloride (GdCl3). The oxide dissolves in acids to give the salts, such as gadolinium(III) nitrate.", "title": "Characteristics" }, { "paragraph_id": 16, "text": "Gadolinium(III), like most lanthanide ions, forms complexes with high coordination numbers. This tendency is illustrated by the use of the chelating agent DOTA, an octadentate ligand. Salts of [Gd(DOTA)] are useful in magnetic resonance imaging. A variety of related chelate complexes have been developed, including gadodiamide.", "title": "Characteristics" }, { "paragraph_id": 17, "text": "Reduced gadolinium compounds are known, especially in the solid state. Gadolinium(II) halides are obtained by heating Gd(III) halides in presence of metallic Gd in tantalum containers. Gadolinium also forms the sesquichloride Gd2Cl3, which can be further reduced to GdCl by annealing at 800 °C (1,470 °F). This gadolinium(I) chloride forms platelets with layered graphite-like structure.", "title": "Characteristics" }, { "paragraph_id": 18, "text": "Naturally occurring gadolinium is composed of six stable isotopes, Gd, Gd, Gd, Gd, Gd and Gd, and one radioisotope, Gd, with the isotope Gd being the most abundant (24.8% natural abundance). The predicted double beta decay of Gd has never been observed (an experimental lower limit on its half-life of more than 1.3×10 years has been measured).", "title": "Characteristics" }, { "paragraph_id": 19, "text": "Thirty-three radioisotopes of gadolinium have been observed, with the most stable being Gd (naturally occurring), with a half-life of about 1.08×10 years, and Gd, with a half-life of 1.79×10 years. All of the remaining radioactive isotopes have half-lives of less than 75 years. The majority of these have half-lives of less than 25 seconds. Gadolinium isotopes have four metastable isomers, with the most stable being Gd (t1/2= 110 seconds), Gd (t1/2= 85 seconds) and Gd (t1/2= 24.5 seconds).", "title": "Characteristics" }, { "paragraph_id": 20, "text": "The isotopes with atomic masses lower than the most abundant stable isotope, Gd, primarily decay by electron capture to isotopes of europium. At higher atomic masses, the primary decay mode is beta decay, and the primary products are isotopes of terbium.", "title": "Characteristics" }, { "paragraph_id": 21, "text": "Gadolinium is named after the mineral gadolinite, in turn named after Finnish chemist and geologist Johan Gadolin. In 1880, the Swiss chemist Jean Charles Galissard de Marignac observed the spectroscopic lines from gadolinium in samples of gadolinite (which actually contains relatively little gadolinium, but enough to show a spectrum) and in the separate mineral cerite. The latter mineral proved to contain far more of the element with the new spectral line. De Marignac eventually separated a mineral oxide from cerite, which he realized was the oxide of this new element. He named the oxide \"gadolinia\". Because he realized that \"gadolinia\" was the oxide of a new element, he is credited with the discovery of gadolinium. The French chemist Paul-Émile Lecoq de Boisbaudran carried out the separation of gadolinium metal from gadolinia in 1886.", "title": "History" }, { "paragraph_id": 22, "text": "Gadolinium is a constituent in many minerals such as monazite and bastnäsite. The metal is too reactive to exist naturally. Paradoxically, as noted above, the mineral gadolinite actually contains only traces of this element. The abundance in the Earth's crust is about 6.2 mg/kg. The main mining areas are in China, the US, Brazil, Sri Lanka, India, and Australia with reserves expected to exceed one million tonnes. World production of pure gadolinium is about 400 tonnes per year. The only known mineral with essential gadolinium, lepersonnite-(Gd), is very rare.", "title": "Occurrence" }, { "paragraph_id": 23, "text": "Gadolinium is produced both from monazite and bastnäsite.", "title": "Production" }, { "paragraph_id": 24, "text": "Gadolinium metal is obtained from its oxide or salts by heating it with calcium at 1,450 °C (2,640 °F) in an argon atmosphere. Sponge gadolinium can be produced by reducing molten GdCl3 with an appropriate metal at temperatures below 1,312 °C (2,394 °F) (the melting point of Gd) at reduced pressure.", "title": "Production" }, { "paragraph_id": 25, "text": "Gadolinium has no large-scale applications, but it has a variety of specialized uses.", "title": "Applications" }, { "paragraph_id": 26, "text": "Because gadolinium has a high neutron cross-section, it is effective for use with neutron radiography and in shielding of nuclear reactors. It is used as a secondary, emergency shut-down measure in some nuclear reactors, particularly of the CANDU reactor type. Gadolinium is used in nuclear marine propulsion systems as a burnable poison. The use of gadolinium in neutron capture therapy to target tumors has been investigated, and gadolinium-containing compounds have proven promising.", "title": "Applications" }, { "paragraph_id": 27, "text": "Gadolinium possesses unusual metallurgic properties, with as little as 1% of gadolinium improving the workability and resistance of iron, chromium, and related alloys to high temperatures and oxidation.", "title": "Applications" }, { "paragraph_id": 28, "text": "Gadolinium is paramagnetic at room temperature, with a ferromagnetic Curie point of 20 °C (68 °F). Paramagnetic ions, such as gadolinium, increase nuclear spin relaxation rates, making gadolinium useful as a contrast agent for magnetic resonance imaging (MRI). Solutions of organic gadolinium complexes and gadolinium compounds are used as intravenous contrast agents to enhance images in medical and magnetic resonance angiography (MRA) procedures. Magnevist is the most widespread example. Nanotubes packed with gadolinium, called \"gadonanotubes\", are 40 times more effective than the usual gadolinium contrast agent. Traditional gadolinium-based contrast agents are un-targeted, generally distributing throughout the body after injection, but will not readily cross the intact blood–brain barrier. Brain tumors, and other disorders that degrade the blood-brain barrier, allow these agents to penetrate into the brain and facilitate their detection by contrast-enhanced MRI. Similarly, delayed gadolinium-enhanced magnetic resonance imaging of cartilage uses an ionic compound agent, originally Magnevist, that is excluded from healthy cartilage based on electrostatic repulsion but will enter proteoglycan-depleted cartilage in diseases such as osteoarthritis.", "title": "Applications" }, { "paragraph_id": 29, "text": "Gadolinium is used as a phosphor in medical imaging. It is contained in the phosphor layer of X-ray detectors, suspended in a polymer matrix. Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) at the phosphor layer converts the X-rays released from the source into light. This material emits green light at 540 nm because of the presence of Tb, which is very useful for enhancing the imaging quality. The energy conversion of Gd is up to 20%, which means that one fifth of the X-ray energy striking the phosphor layer can be converted into visible photons. Gadolinium oxyorthosilicate (Gd2SiO5, GSO; usually doped by 0.1–1.0% of Ce) is a single crystal that is used as a scintillator in medical imaging such as positron emission tomography, and for detecting neutrons.", "title": "Applications" }, { "paragraph_id": 30, "text": "Gadolinium compounds are also used for making green phosphors for color TV tubes.", "title": "Applications" }, { "paragraph_id": 31, "text": "Gadolinium-153 is produced in a nuclear reactor from elemental europium or enriched gadolinium targets. It has a half-life of 240±10 days and emits gamma radiation with strong peaks at 41 keV and 102 keV. It is used in many quality-assurance applications, such as line sources and calibration phantoms, to ensure that nuclear-medicine imaging systems operate correctly and produce useful images of radioisotope distribution inside the patient. It is also used as a gamma-ray source in X-ray absorption measurements and in bone density gauges for osteoporosis screening.", "title": "Applications" }, { "paragraph_id": 32, "text": "Gadolinium is used for making gadolinium yttrium garnet (Gd:Y3Al5O12), which has microwave applications and is used in fabrication of various optical components and as substrate material for magneto-optical films.", "title": "Applications" }, { "paragraph_id": 33, "text": "Gadolinium can also serve as an electrolyte in solid oxide fuel cells (SOFCs). Using gadolinium as a dopant for materials like cerium oxide (in the form of gadolinium-doped ceria) gives an electrolyte having both high ionic conductivity and low operating temperatures.", "title": "Applications" }, { "paragraph_id": 34, "text": "Research is being conducted on magnetic refrigeration near room temperature, which could provide significant efficiency and environmental advantages over conventional refrigeration methods. Gadolinium-based materials, such as Gd5(SixGe1−x)4, are currently the most promising materials, owing to their high Curie temperature and giant magnetocaloric effect. Pure Gd itself exhibits a large magnetocaloric effect near its Curie temperature of 20 °C (68 °F), and this has sparked interest into producing Gd alloys having a larger effect and tunable Curie temperature. In Gd5(SixGe1−x)4, Si and Ge compositions can be varied to adjust the Curie temperature.", "title": "Applications" }, { "paragraph_id": 35, "text": "Gadolinium barium copper oxide (GdBCO) is a superconductor with applications in superconducting motors or generators such as in wind turbines. It can be manufactured in the same way as the most widely researched cuprate high temperature superconductor, yttrium barium copper oxide (YBCO) and uses an analogous chemical composition (GdBa2Cu3O7−δ ). It was used in 2014 to set a new world record for the highest trapped magnetic field in a bulk high temperature superconductor, with a field of 17.6T being trapped within two GdBCO bulks.", "title": "Applications" }, { "paragraph_id": 36, "text": "Gadolinium is used for antineutrino detection in the Japanese Super-Kamiokande detector in order to sense supernova explosions. Low-energy neutrons that arise from antineutrino absorption by protons in the detector's ultrapure water are captured by gadolinium nuclei, which subsequently emit gamma rays that are detected as part of the antineutrino signature.", "title": "Applications" }, { "paragraph_id": 37, "text": "Gadolinium gallium garnet (GGG, Gd3Ga5O12) was used for imitation diamonds and for computer bubble memory.", "title": "Applications" }, { "paragraph_id": 38, "text": "As a free ion, gadolinium is reported often to be highly toxic, but MRI contrast agents are chelated compounds and are considered safe enough to be used in most persons. The toxicity of free gadolinium ions in animals is due to interference with a number of calcium-ion channel dependent processes. The 50% lethal dose is about 0.34 mmol/kg (IV, mouse) or 100–200 mg/kg. Toxicity studies in rodents show that chelation of gadolinium (which also improves its solubility) decreases its toxicity with regard to the free ion by a factor of 31 (i.e., the lethal dose for the Gd-chelate increases by 31 times). It is believed therefore that clinical toxicity of gadolinium-based contrast agents (GBCAs) in humans will depend on the strength of the chelating agent; however this research is still not complete. About a dozen different Gd-chelated agents have been approved as MRI contrast agents around the world.", "title": "Safety" }, { "paragraph_id": 39, "text": "In patients with kidney failure, there is a risk of a rare but serious illness called nephrogenic systemic fibrosis (NSF) that is caused by the use of gadolinium based contrast agents. The disease resembles scleromyxedema and to some extent scleroderma. It may occur months after a contrast agent has been injected. Its association with gadolinium and not the carrier molecule is confirmed by its occurrence with various contrast materials in which gadolinium is carried by very different carrier molecules. Due to this, it is not recommended to use these agents for any individual with end-stage kidney failure as they will require emergent dialysis. Similar but not identical symptoms to NSF may occur in subjects with normal or near-normal renal function within hours to 2 months following the administration of GBCAs; the name \"gadolinium deposition disease\" (GDD) has been proposed for this condition, which occurs in the absence of pre-existent disease or subsequently developed disease of an alternate known process. A 2016 study reported numerous anecdotal cases of GDD. However, in that study, participants were recruited from online support groups for subjects self-identified as having gadolinium toxicity, and no relevant medical history or data were collected. There have yet to be definitive scientific studies proving the existence of the condition.", "title": "Safety" }, { "paragraph_id": 40, "text": "Included in the current guidelines from the Canadian Association of Radiologists are that dialysis patients should only receive gadolinium agents where essential and that they should receive dialysis after the exam. If a contrast-enhanced MRI must be performed on a dialysis patient, it is recommended that certain high-risk contrast agents be avoided but not that a lower dose be considered. The American College of Radiology recommends that contrast-enhanced MRI examinations be performed as closely before dialysis as possible as a precautionary measure, although this has not been proven to reduce the likelihood of developing NSF. The FDA recommends that potential for gadolinium retention be considered when choosing the type of GBCA used in patients requiring multiple lifetime doses, pregnant women, children, and patients with inflammatory conditions.", "title": "Safety" }, { "paragraph_id": 41, "text": "Anaphylactoid reactions are rare, occurring in approximately 0.03–0.1%.", "title": "Safety" }, { "paragraph_id": 42, "text": "Long-term environmental impacts of gadolinium contamination due to human usage is a topic of ongoing research.", "title": "Safety" }, { "paragraph_id": 43, "text": "Gadolinium has no known native biological role, but its compounds are used as research tools in biomedicine. Gd compounds are components of MRI contrast agents. It is used in various ion channel electrophysiology experiments to block sodium leak channels and stretch activated ion channels. Gadolinium has recently been used to measure the distance between two points in a protein via electron paramagnetic resonance, something that gadolinium is especially amenable to thanks to EPR sensitivity at w-band (95 GHz) frequencies.", "title": "Biological use" } ]
Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with an attraction to a magnetic field higher than that of nickel. Above this temperature it is the most paramagnetic element. It is found in nature only in an oxidized form. When separated, it usually has impurities of the other rare-earths because of their similar chemical properties. Gadolinium was discovered in 1880 by Jean Charles de Marignac, who detected its oxide by using spectroscopy. It is named after the mineral gadolinite, one of the minerals in which gadolinium is found, itself named for the Finnish chemist Johan Gadolin. Pure gadolinium was first isolated by the chemist Paul-Émile Lecoq de Boisbaudran around 1886. Gadolinium possesses unusual metallurgical properties, to the extent that as little as 1% of gadolinium can significantly improve the workability and resistance to oxidation at high temperatures of iron, chromium, and related metals. Gadolinium as a metal or a salt absorbs neutrons and is, therefore, used sometimes for shielding in neutron radiography and in nuclear reactors. Like most of the rare earths, gadolinium forms trivalent ions with fluorescent properties, and salts of gadolinium(III) are used as phosphors in various applications. Gadolinium(III) ions in water-soluble salts are highly toxic to mammals. However, chelated gadolinium(III) compounds prevent the gadolinium(III) from being exposed to the organism and the majority is excreted by healthy kidneys before it can deposit in tissues. Because of its paramagnetic properties, solutions of chelated organic gadolinium complexes are used as intravenously administered gadolinium-based MRI contrast agents in medical magnetic resonance imaging. Varying amounts deposit in tissues of the brain, cardiac muscle, kidney, other organs and the skin, mainly depending on kidney function, structure of the chelates and the dose administered.
2001-05-17T14:30:32Z
2023-12-16T07:59:16Z
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https://en.wikipedia.org/wiki/Gadolinium
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German Unity Day
German Unity Day (German: Tag der Deutschen Einheit, pronounced [ˈtaːk deːɐ̯ ˈdɔɪ̯t͡ʃn̩ ˈaɪ̯n̩haɪ̯t] ) is the National Day of Germany, celebrated on 3 October as a public holiday. It commemorates German reunification in 1990 when the German Democratic Republic (East Germany) joined the Federal Republic of Germany (West Germany), so that for the first time since 1945 there existed a single German state. German Unity Day on 3 October has been the German National Holiday since 1990, when the reunification was formally completed. An alternative choice to commemorate the reunification could have been the day the Berlin Wall came down: 9 November 1989, which coincided with the anniversary of the proclamation of the German Republic in 1918, and the defeat of Hitler's first coup in 1923. However, 9 November was also the anniversary of the first large-scale Nazi-led pogroms against Jews in 1938 (Kristallnacht), so the day was considered racist as a national holiday (see 9 November in German history). Therefore, 3 October 1990, the day of the formal reunification, was chosen instead. It replaced the "German Unity Day" on 17 June, the national holiday of the Federal Republic of Germany from 1954. Germany has historically associated various dates with its nationhood and unity. Before 1871, in the area where the single state of Germany now exists, different kingdoms and principalities existed. After the unification of Germany, and the Founding of the Empire 1871, there was still no common national holiday. The Sedantag was, however, celebrated every year on 2 September, recalling the decisive victory in the Franco-Prussian War on 2 September 1870. Before the Empire was founded in 1872, there were calls for a national holiday, and there were three suggestions. No decision was made. Until 1873, the Sedantag was moved to 18 January or the day of the Frankfurt Treaty (10 May 1871). The Sedantag would soon also be celebrated at the universities and in many German cities. It never occurred to them to think about "Empire Parade" or "Emperor's Birthday". Some Culture Ministers of the states, especially in Prussia, decided that the Sedantag would be an official festival in schools. Upon many suggestions, the date of the Emperor's proclamation on 18 January would be established as day of remembrance. Emperor Wilhelm I declined this: "This was also the day of the first Prussian coronation of the king, which should not fall into the shadow of a united German holiday." Despite this, the Day of the founding of the German Empire was still celebrated locally and nationally to some degree. These celebrations continued in the Weimar Republic and Nazi Germany. Following World War II, East Germany completely abandoned the holiday, while West Germany still celebrated it on a smaller scale. West Germany did acknowledge the centennial of the German Empire as the founding of the German state in 1971. This holiday is still celebrated by some Germans. On 31 July 1919, the Weimar Constitution would be accepted in its form by the Weimar National Congress. In memorial of this "Hour of birth of democracy", 11 August was created as Constitution Day, because the President of Germany Friedrich Ebert, signed the constitution on this day. Shortly after the Nazis took power in 1933 (the so-called Machtergreifung), May Day (1 May) was established as a national holiday in the German Reich. It was already celebrated as a "Day of the Labor Movement" since 1890, and also was part of the tradition for the May dance commemorating the Walpurgis Night. Immediately after the establishment of the holiday in 1933, the Nazis banned trade unions on 2 May 1933 and occupied their buildings as offices for the Nazi Movement. On 1 March 1939, Hitler declared 9 November (the day of the failed Beer Hall Putsch in 1923) as the "Memorial Day for the movement" as the national holiday. From 1954 to 1990, 17 June was an official holiday in the Federal Republic of Germany to commemorate the East German uprising of 1953, even with the name "Day of the German Unity". Since 1963, it was proclaimed by the President of the Federal Republic as "National Day of Memorial of the German People". However, by the mid-1960s as hope faded that the two Germanies would ever be re-united, this date became more of a holiday and day of recreation than a day to consider national unity. In the year 1990, the "Day of German Unity" was celebrated twice, on this date and on 3 October. In East Germany, the Founding Day in 1949 was celebrated on 7 October as Day of the Republic, until the 40th anniversary in 1989. The motive for setting the date of 3 October as the possible Day of Unity was decided by the Volkskammer (GDR Congress) on the impending economical and political collapse of the GDR. The Helsinki Conference was set for 2 October, at which the foreign ministers would be informed of the results of the Two-plus-Four talks. At the beginning of July, the governments of both German states decided on the schedule: elections in the GDR would be held on 14 October, and a common election for the entire country on 2 December. The decision on the date was finally made on 22 August by the GDR's Minister-President, Lothar de Maizière, at a special session of the Volkskammer, which began at 9 p.m. After a heated debate, the President of the Volkskammer, Sabine Bergmann-Pohl, announced the results at 2:30 a.m. on 23 August: The Volkskammer decides on the accession of the GDR to the Constitution of the Federal Republic of Germany according to Article 23 of the Basic Laws effective as of 3 October 1990. In the matter Nr. 201 there have been 363 votes. There were no invalid votes. 294 deputies have voted 'yes.' (Strong applause from CDU/DA, DSU, FDP, partly SPD and the deputies standing up in their seats.) 62 deputies have voted 'no', and 7 people abstained. This is a historic event. Ladies and Gentlemen, I believe that we have not made an easy decision, but today we have acted within our responsibilities of the voting rights of the citizens of the GDR. I thank everybody that this result was made possible by a consensus across party lines. Gregor Gysi, Chairman of the SED-PDS, was visibly moved and made a personal statement: "Madame President! The Parliament has no more and no less decided on the downfall of the German Democratic Republic as of 3 October 1990". (Jubilant cheers from the CDU/DA, DSU and SPD.) On 3 November 2004, the Federal Chancellor, Gerhard Schröder, suggested that the "Day of the German Unity" be celebrated on a Sunday, for economic reasons. Instead of 3 October, the National Reunification should be celebrated on the first Sunday of October. This suggestion received a lot of criticism from many sides, amongst them from Federal President Horst Köhler as well as the President of the Bundestag, Wolfgang Thierse. The demand worried a part of the population because of discontent for increased working hours would be seen as a provocation and devaluing the national holiday. In addition, fixing the Unity Day on the first Sunday of October would have meant that it would sometimes fall on 7 October, which happens to have been the national day of East Germany; this date would thus have been seen as commemorating the division of Germany rather than the reunification. The idea was dropped after a short but angry debate. The Day of German Unity is celebrated each year with a ceremonial act and a citizen's festival (Bürgerfest). The celebrations are hosted by a major city, usually the state capital, in the German state presiding over the Bundesrat in the respective year (a sequence determined by the Königstein Agreement). After Bonn in 2011, Frankfurt am Main was the second non-state capital to host the celebrations in 2015; however, both cities are significant in German political history (Bonn as former capital of West Germany and Frankfurt as the place of the Frankfurt Parliament of 1848–49). In addition, various celebrations are held in the federal capital Berlin, mainly based on the Straße des 17. Juni and around the Brandenburg Gate. State capitals and also other cities often have additional festivities. Furthermore, the Oktoberfest beer festival in Munich, which traditionally runs until the first Sunday in October, now runs until 3 October, if the Sunday in question falls on the first or second day of October. The celebrations in the host city always includes a festival and fireworks show. At the 1999 Day of German Unity celebration in Wiesbaden the Zipfelbund [de] (Compass Confederation) was formalised. The Zipfelbund are the four communities at the cardinal compass points of Germany: North – List on the island of Sylt, West – Selfkant, South – Oberstdorf and East – Görlitz. Together, they always participate in the respective annual celebration to represent the modern borders of Germany.
[ { "paragraph_id": 0, "text": "German Unity Day (German: Tag der Deutschen Einheit, pronounced [ˈtaːk deːɐ̯ ˈdɔɪ̯t͡ʃn̩ ˈaɪ̯n̩haɪ̯t] ) is the National Day of Germany, celebrated on 3 October as a public holiday. It commemorates German reunification in 1990 when the German Democratic Republic (East Germany) joined the Federal Republic of Germany (West Germany), so that for the first time since 1945 there existed a single German state. German Unity Day on 3 October has been the German National Holiday since 1990, when the reunification was formally completed.", "title": "" }, { "paragraph_id": 1, "text": "An alternative choice to commemorate the reunification could have been the day the Berlin Wall came down: 9 November 1989, which coincided with the anniversary of the proclamation of the German Republic in 1918, and the defeat of Hitler's first coup in 1923. However, 9 November was also the anniversary of the first large-scale Nazi-led pogroms against Jews in 1938 (Kristallnacht), so the day was considered racist as a national holiday (see 9 November in German history). Therefore, 3 October 1990, the day of the formal reunification, was chosen instead. It replaced the \"German Unity Day\" on 17 June, the national holiday of the Federal Republic of Germany from 1954.", "title": "" }, { "paragraph_id": 2, "text": "Germany has historically associated various dates with its nationhood and unity.", "title": "History" }, { "paragraph_id": 3, "text": "Before 1871, in the area where the single state of Germany now exists, different kingdoms and principalities existed. After the unification of Germany, and the Founding of the Empire 1871, there was still no common national holiday. The Sedantag was, however, celebrated every year on 2 September, recalling the decisive victory in the Franco-Prussian War on 2 September 1870.", "title": "History" }, { "paragraph_id": 4, "text": "Before the Empire was founded in 1872, there were calls for a national holiday, and there were three suggestions. No decision was made. Until 1873, the Sedantag was moved to 18 January or the day of the Frankfurt Treaty (10 May 1871). The Sedantag would soon also be celebrated at the universities and in many German cities. It never occurred to them to think about \"Empire Parade\" or \"Emperor's Birthday\". Some Culture Ministers of the states, especially in Prussia, decided that the Sedantag would be an official festival in schools. Upon many suggestions, the date of the Emperor's proclamation on 18 January would be established as day of remembrance. Emperor Wilhelm I declined this: \"This was also the day of the first Prussian coronation of the king, which should not fall into the shadow of a united German holiday.\"", "title": "History" }, { "paragraph_id": 5, "text": "Despite this, the Day of the founding of the German Empire was still celebrated locally and nationally to some degree. These celebrations continued in the Weimar Republic and Nazi Germany. Following World War II, East Germany completely abandoned the holiday, while West Germany still celebrated it on a smaller scale. West Germany did acknowledge the centennial of the German Empire as the founding of the German state in 1971. This holiday is still celebrated by some Germans.", "title": "History" }, { "paragraph_id": 6, "text": "On 31 July 1919, the Weimar Constitution would be accepted in its form by the Weimar National Congress. In memorial of this \"Hour of birth of democracy\", 11 August was created as Constitution Day, because the President of Germany Friedrich Ebert, signed the constitution on this day.", "title": "History" }, { "paragraph_id": 7, "text": "Shortly after the Nazis took power in 1933 (the so-called Machtergreifung), May Day (1 May) was established as a national holiday in the German Reich. It was already celebrated as a \"Day of the Labor Movement\" since 1890, and also was part of the tradition for the May dance commemorating the Walpurgis Night. Immediately after the establishment of the holiday in 1933, the Nazis banned trade unions on 2 May 1933 and occupied their buildings as offices for the Nazi Movement. On 1 March 1939, Hitler declared 9 November (the day of the failed Beer Hall Putsch in 1923) as the \"Memorial Day for the movement\" as the national holiday.", "title": "History" }, { "paragraph_id": 8, "text": "From 1954 to 1990, 17 June was an official holiday in the Federal Republic of Germany to commemorate the East German uprising of 1953, even with the name \"Day of the German Unity\". Since 1963, it was proclaimed by the President of the Federal Republic as \"National Day of Memorial of the German People\". However, by the mid-1960s as hope faded that the two Germanies would ever be re-united, this date became more of a holiday and day of recreation than a day to consider national unity. In the year 1990, the \"Day of German Unity\" was celebrated twice, on this date and on 3 October.", "title": "History" }, { "paragraph_id": 9, "text": "In East Germany, the Founding Day in 1949 was celebrated on 7 October as Day of the Republic, until the 40th anniversary in 1989.", "title": "History" }, { "paragraph_id": 10, "text": "The motive for setting the date of 3 October as the possible Day of Unity was decided by the Volkskammer (GDR Congress) on the impending economical and political collapse of the GDR. The Helsinki Conference was set for 2 October, at which the foreign ministers would be informed of the results of the Two-plus-Four talks.", "title": "Decision for GDR's unity with the Federal Republic" }, { "paragraph_id": 11, "text": "At the beginning of July, the governments of both German states decided on the schedule: elections in the GDR would be held on 14 October, and a common election for the entire country on 2 December.", "title": "Decision for GDR's unity with the Federal Republic" }, { "paragraph_id": 12, "text": "The decision on the date was finally made on 22 August by the GDR's Minister-President, Lothar de Maizière, at a special session of the Volkskammer, which began at 9 p.m. After a heated debate, the President of the Volkskammer, Sabine Bergmann-Pohl, announced the results at 2:30 a.m. on 23 August:", "title": "Decision for GDR's unity with the Federal Republic" }, { "paragraph_id": 13, "text": "The Volkskammer decides on the accession of the GDR to the Constitution of the Federal Republic of Germany according to Article 23 of the Basic Laws effective as of 3 October 1990. In the matter Nr. 201 there have been 363 votes. There were no invalid votes. 294 deputies have voted 'yes.' (Strong applause from CDU/DA, DSU, FDP, partly SPD and the deputies standing up in their seats.) 62 deputies have voted 'no', and 7 people abstained. This is a historic event. Ladies and Gentlemen, I believe that we have not made an easy decision, but today we have acted within our responsibilities of the voting rights of the citizens of the GDR. I thank everybody that this result was made possible by a consensus across party lines.", "title": "Decision for GDR's unity with the Federal Republic" }, { "paragraph_id": 14, "text": "Gregor Gysi, Chairman of the SED-PDS, was visibly moved and made a personal statement: \"Madame President! The Parliament has no more and no less decided on the downfall of the German Democratic Republic as of 3 October 1990\". (Jubilant cheers from the CDU/DA, DSU and SPD.)", "title": "Decision for GDR's unity with the Federal Republic" }, { "paragraph_id": 15, "text": "On 3 November 2004, the Federal Chancellor, Gerhard Schröder, suggested that the \"Day of the German Unity\" be celebrated on a Sunday, for economic reasons. Instead of 3 October, the National Reunification should be celebrated on the first Sunday of October. This suggestion received a lot of criticism from many sides, amongst them from Federal President Horst Köhler as well as the President of the Bundestag, Wolfgang Thierse. The demand worried a part of the population because of discontent for increased working hours would be seen as a provocation and devaluing the national holiday. In addition, fixing the Unity Day on the first Sunday of October would have meant that it would sometimes fall on 7 October, which happens to have been the national day of East Germany; this date would thus have been seen as commemorating the division of Germany rather than the reunification. The idea was dropped after a short but angry debate.", "title": "Decision for GDR's unity with the Federal Republic" }, { "paragraph_id": 16, "text": "The Day of German Unity is celebrated each year with a ceremonial act and a citizen's festival (Bürgerfest).", "title": "Celebrations" }, { "paragraph_id": 17, "text": "The celebrations are hosted by a major city, usually the state capital, in the German state presiding over the Bundesrat in the respective year (a sequence determined by the Königstein Agreement). After Bonn in 2011, Frankfurt am Main was the second non-state capital to host the celebrations in 2015; however, both cities are significant in German political history (Bonn as former capital of West Germany and Frankfurt as the place of the Frankfurt Parliament of 1848–49).", "title": "Celebrations" }, { "paragraph_id": 18, "text": "In addition, various celebrations are held in the federal capital Berlin, mainly based on the Straße des 17. Juni and around the Brandenburg Gate. State capitals and also other cities often have additional festivities. Furthermore, the Oktoberfest beer festival in Munich, which traditionally runs until the first Sunday in October, now runs until 3 October, if the Sunday in question falls on the first or second day of October. The celebrations in the host city always includes a festival and fireworks show.", "title": "Celebrations" }, { "paragraph_id": 19, "text": "At the 1999 Day of German Unity celebration in Wiesbaden the Zipfelbund [de] (Compass Confederation) was formalised. The Zipfelbund are the four communities at the cardinal compass points of Germany: North – List on the island of Sylt, West – Selfkant, South – Oberstdorf and East – Görlitz. Together, they always participate in the respective annual celebration to represent the modern borders of Germany.", "title": "Celebrations" } ]
German Unity Day is the National Day of Germany, celebrated on 3 October as a public holiday. It commemorates German reunification in 1990 when the German Democratic Republic joined the Federal Republic of Germany, so that for the first time since 1945 there existed a single German state. German Unity Day on 3 October has been the German National Holiday since 1990, when the reunification was formally completed. An alternative choice to commemorate the reunification could have been the day the Berlin Wall came down: 9 November 1989, which coincided with the anniversary of the proclamation of the German Republic in 1918, and the defeat of Hitler's first coup in 1923. However, 9 November was also the anniversary of the first large-scale Nazi-led pogroms against Jews in 1938 (Kristallnacht), so the day was considered racist as a national holiday. Therefore, 3 October 1990, the day of the formal reunification, was chosen instead. It replaced the "German Unity Day" on 17 June, the national holiday of the Federal Republic of Germany from 1954.
2002-02-25T15:51:15Z
2023-11-15T23:03:46Z
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https://en.wikipedia.org/wiki/German_Unity_Day
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Alliance 90/The Greens
Alliance 90/The Greens (German: Bündnis 90/Die Grünen, pronounced [ˈbʏntnɪs ˈnɔʏntsɪç diː ˈɡʁyːnən] ), often simply referred to as the Greens (Grüne, pronounced [ˈɡʁyːnə] ), is a green political party in Germany. It was formed in 1993 by the merger of The Greens (formed in West Germany in 1980) and Alliance 90 (formed in East Germany in 1990). The Greens had itself merged with the East German Green Party after German reunification in 1990. Since January 2022, Ricarda Lang and Omid Nouripour have been co-leaders of the party. It currently holds 118 of the 736 seats in the Bundestag, having won 14.8% of votes cast in the 2021 federal election, and its parliamentary group is the third largest of six. Its parliamentary co-leaders are Britta Haßelmann and Katharina Dröge. The Greens have been part of the federal government twice: first as a junior partner to the Social Democrats (SPD) from 1998 to 2005, and then with the SPD and the Free Democratic Party (FDP) in the traffic light coalition since the 2021 German federal election. In the incumbent Scholz cabinet, the Greens have five ministers, including Vice-Chancellor Robert Habeck and Foreign Minister Annalena Baerbock. The party holds seats in all of Germany's state legislatures, except the Saarland, and is a member of coalition governments in eleven states. Winfried Kretschmann, Minister-President of Baden-Württemberg, is the only Green head of government in Germany. The Landtag of Baden-Württemberg is also the only state legislature in which Alliance 90/The Greens is the largest party; it is the second largest party in the legislatures of Berlin, Hamburg, and Schleswig-Holstein. Alliance 90/The Greens is a founding member of the European Green Party and the Greens–European Free Alliance group in the European Parliament. It is currently the largest party in the G/EFA group, with 21 MEPs. In the 2019 European election, Alliance 90/The Greens was the second largest party in Germany, winning 20.5% of votes cast. The party had 126,451 members in December 2022, making it the fourth largest party in Germany by membership. The Green Party was initially founded in West Germany as Die Grünen (the Greens) in January 1980. It grew out of the anti-nuclear energy, environmental, peace, new left, and new social movements of the late 20th century. Grüne Liste Umweltschutz (green list for environmental protection) was the name used for some branches in Lower Saxony and other states in the Federal Republic of Germany. These groups were founded in 1977 and took part in several elections. Most of them merged with The Greens in 1980. The West Berlin state branch of The Greens was founded as Alternative Liste, or precisely, Alternative Liste für Demokratie und Umweltschutz (AL; alternative list for democracy and environmental protection) in 1978 and became the official West Berlin branch of The Greens in 1980. In 1993 it renamed to Alliance 90/The Greens Berlin after the merger with East Berlin's Greens and Alliance 90. The Hamburg state branch of the Green Party was called Grün-Alternative Liste Hamburg (GAL; green-alternative list) from its foundation in 1982 until 2012. In 1984 it became the official Hamburg branch of The Greens. The political party The Greens (German: Die Grünen) sprung out of the wave of New Social Movements that were active in the 1970s, including environmentalist, anti-war, and anti-nuclear movements which can trace their origin to the student protests of 1968. Officially founded as a German national party on 13 January 1980 in Karlsruhe, the party sought to give these movements political and parliamentary representation, as the pre-existing peoples parties were not organised in a way to address their stated issues. Its membership included organisers from former attempts to achieve institutional representation such as GLU and AUD. Opposition to pollution, use of nuclear power, NATO military action, and certain aspects of industrialised society were principal campaign issues. The party also championed sexual liberation and the abolition of age of consent laws. The formation of a party was purportedly first discussed by movement leaders in 1978. Important figures in the first years were – among others – Petra Kelly, Joschka Fischer, Gert Bastian, Lukas Beckmann, Rudolf Bahro, Joseph Beuys, Antje Vollmer, Herbert Gruhl, August Haußleiter, Luise Rinser, Dirk Schneider, Christian Ströbele, Jutta Ditfurth, and Baldur Springmann. In the foundational congress of 1980, the ideological tenets of the party were consolidated, proclaiming the famous Four Pillars of the Green Party: In 1982, the conservative factions of the Greens broke away to form the Ecological Democratic Party (ÖDP). Those who remained in the Green party were more strongly pacifist and against restrictions on immigration and reproductive rights, while supporting the legalisation of cannabis use, placing a higher priority on working for LGBT rights, and tending to advocate what they described as "anti-authoritarian" concepts of education and child-rearing. They also tended to identify more closely with a culture of protest and civil disobedience, frequently clashing with police at demonstrations against nuclear weapons, nuclear energy, and the construction of a new runway (Startbahn West) at Frankfurt Airport. Those who left the party at the time might have felt similarly about some of these issues, but did not identify with the forms of protest that Green party members took part in. After some success at state-level elections, the party won 27 seats with 5.7% of the vote in the Bundestag, the lower house of the German parliament, in the 1983 federal election. Among the important political issues at the time was the deployment of Pershing II IRBMs and nuclear-tipped cruise missiles by the U.S. and NATO on West German soil, generating strong opposition in the general population that found an outlet in mass demonstrations. The newly formed party was able to draw on this popular movement to recruit support. Partly due to the impact of the Chernobyl disaster in 1986, and to growing awareness of the threat of air pollution and acid rain to German forests (Waldsterben), the Greens increased their share of the vote to 8.3% in the 1987 federal election. Around this time, Joschka Fischer emerged as the unofficial leader of the party, which he remained until resigning all leadership posts following the 2005 federal election. The Greens were the target of attempts by the East German secret police to enlist the cooperation of members who were willing to align the party with the agenda of the German Democratic Republic. The party ranks included several politicians who were later discovered to have been Stasi agents, including Bundestag representative Dirk Schneider, European Parliament representative Brigitte Heinrich, and Red Army Faction defense lawyer Klaus Croissant. Greens politician and Bundestag representative Gert Bastian was also a founding member of Generals for Peace [de], a pacifist group created and funded by the Stasi, the revelation of which may have contributed to the murder-suicide in which he killed his partner and Greens founder Petra Kelly. A study commissioned by the Greens determined that 15 to 20 members intimately cooperated with the Stasi and another 450 to 500 had been informants. Until 1987, the Greens included a faction involved in pedophile activism, the SchwuP short for Arbeitsgemeinschaft "Schwule, Päderasten und Transsexuelle" (approx. working group "Gays, Pederasts and Transsexuals"). This faction campaigned for repealing § 176 of the German penal code, dealing with child sexual abuse. This group was controversial within the party itself, and was seen as partly responsible for the poor election result of 1985. This controversy re-surfaced in 2013 and chairwoman Claudia Roth stated she welcomed an independent scientific investigation on the extent of influence pedophile activists had on the party in the mid-1980s. In November 2014, the political scientist Franz Walter presented the final report about his research on a press conference. In the 1990 federal elections, taking place post-reunified Germany, the Greens in the West did not pass the 5% limit required to win seats in the Bundestag. It was only due to a temporary modification of German election law, applying the five-percent "hurdle" separately in East and West Germany, that the Greens acquired any parliamentary seats at all. This happened because in the new states of Germany, the Greens, in a joint effort with Alliance 90, a heterogeneous grouping of civil rights activists, were able to gain more than 5% of the vote. Some critics attribute this poor performance to the reluctance of the campaign to cater to the prevalent mood of nationalism, instead focusing on subjects such as global warming. A campaign poster at the time proudly stated, "Everyone is talking about Germany; we're talking about the weather!", paraphrasing a popular slogan of Deutsche Bundesbahn, the German national railway. The party also opposed imminent reunification that was in process, instead wanting to initiate debates on ecology and nuclear issues before reunification causing a drop in support in Western Germany. After the 1994 federal election; however, the merged party returned to the Bundestag, and the Greens received 7.3% of the vote nationwide and 49 seats. In the 1998 federal election, despite a slight fall in their percentage of the vote (6.7%), the Greens retained 47 seats and joined the federal government for the first time in 'Red-Green' coalition government with the Social Democratic Party of Germany (SPD). Joschka Fischer became Vice-Chancellor of Germany and foreign minister in the new government, which had two other Green ministers (Andrea Fischer, later Renate Künast, and Jürgen Trittin). Almost immediately the party was plunged into a crisis by the question of German participation in the NATO actions in Kosovo. Numerous anti-war party members resigned their party membership when the first post-war deployment of German troops in a military conflict abroad occurred under a Red-Green government, and the party began to experience a long string of defeats in local and state-level elections. Disappointment with the Green participation in government increased when anti-nuclear power activists realised that shutting down the nation's nuclear power stations would not happen as quickly as they wished, and numerous pro-business SPD members of the federal cabinet opposed the environmentalist agenda of the Greens, calling for tacit compromises. In 2001, the party experienced a further crisis as some Green Members of Parliament refused to back the government's plan of sending military personnel to help with the 2001 invasion of Afghanistan. Chancellor Gerhard Schröder called a vote of confidence, tying it to his strategy on the war. Four Green MPs and one Social Democrat voted against the government, but Schröder was still able to command a majority. On the other hand, the Greens achieved a major success as a governing party through the 2000 decision to phase out the use of nuclear energy. Minister of Environment, Nature Conservation and Nuclear Safety Jürgen Trittin reached an agreement with energy companies on the gradual phasing out of the country's nineteen nuclear power plants and a cessation of civil usage of nuclear power by 2020. This was authorised through the Nuclear Exit Law. Based on an estimate of 32 years as the normal period of operation for a nuclear power plant, the agreement defines precisely how much energy a power plant is allowed to produce before being shut down. This law has since been overturned. Despite the crises of the preceding electoral period, in the 2002 federal election, the Greens increased their total to 55 seats (in a smaller parliament) and 8.6%. This was partly due to the perception that the internal debate over the war in Afghanistan had been more honest and open than in other parties, and one of the MPs who had voted against the Afghanistan deployment, Hans-Christian Ströbele, was directly elected to the Bundestag as a district representative for the Friedrichshain-Kreuzberg – Prenzlauer Berg East constituency in Berlin, becoming the first Green to ever gain a first-past-the-post seat in Germany. The Greens benefited from increased inroads among traditionally left-wing demographics which had benefited from Green-initiated legislation in the 1998–2002 term, such as environmentalists (Renewable Energies Act) and LGBT groups (Registered Partnership Law). Perhaps most important for determining the success of both the Greens and the SPD was the increasing threat of war in Iraq, which was highly unpopular with the German public, and helped gather votes for the parties which had taken a stand against participation in this war. Despite losses for the SPD, the Red-Green coalition government retained a very slight majority in the Bundestag (4 seats) and was renewed, with Joschka Fischer as foreign minister, Renate Künast as minister for consumer protection, nutrition and agriculture, and Jürgen Trittin as minister for the environment. One internal issue in 2002 was the failed attempt to settle a long-standing discussion about the question of whether members of parliament should be allowed to become members of the party executive. Two party conventions declined to change the party statute. The necessary majority of two-thirds was missed by a small margin. As a result, former party chairpersons Fritz Kuhn and Claudia Roth (who had been elected to parliament that year) were no longer able to continue in their executive function and were replaced by former party secretary general Reinhard Bütikofer and former Bundestag member Angelika Beer. The party then held a member referendum on this question in the spring of 2003 which changed the party statute. Now members of parliament may be elected for two of the six seats of the party executive, as long as they are not ministers or caucus leaders. 57% of all party members voted in the member referendum, with 67% voting in favor of the change. The referendum was only the second in the history of Alliance 90/The Greens, the first having been held about the merger of the Greens and Alliance 90. In 2004, after Angelika Beer was elected to the European parliament, Claudia Roth was elected to replace her as party chair. The only party convention in 2003 was planned for November 2003, but about 20% of the local organisations forced the federal party to hold a special party convention in Cottbus early to discuss the party position regarding Agenda 2010, a major reform of the German welfare programmes planned by Chancellor Schröder. The November 2003 party convention was held in Dresden and decided the election platform for the 2004 European Parliament elections. The German Green list for these elections was headed by Rebecca Harms (then leader of the Green party in Lower Saxony) and Daniel Cohn-Bendit, previously Member of the European Parliament for The Greens of France. The November 2003 convention is also noteworthy because it was the first convention of a German political party ever to use an electronic voting system. The Greens gained a record 13 of Germany's 99 seats in these elections, mainly due to the perceived competence of Green ministers in the federal government and the unpopularity of the Social Democratic Party. In early 2005, the Greens were the target of the German Visa Affair 2005, instigated in the media by the Christian Democratic Union (CDU). At the end of April 2005, they celebrated the decommissioning of the Obrigheim nuclear power station. They also continue to support a bill for an Anti-Discrimination Law (de: Allgemeines Gleichbehandlungsgesetz) in the Bundestag. In May 2005, the only remaining state-level red-green coalition government lost the vote in the North Rhine-Westphalia state election, leaving only the federal government with participation of the Greens (apart from local governments). In the early 2005 federal election the party incurred very small losses and achieved 8.1% of the vote and 51 seats. However, due to larger losses of the SPD, the previous coalition no longer had a majority in the Bundestag. For almost two years after the federal election in 2005, the Greens were not part of any government at the state or federal level. In June 2007, the Greens in Bremen entered into a coalition with the Social Democratic Party (SPD) following the 2007 Bremen state election. In April 2008, following the 2008 Hamburg state election, the Green-Alternative List (GAL) in Hamburg entered into a coalition with the Christian Democratic Union (CDU), the first such state-level coalition in Germany. Although the GAL had to agree to the deepening of the Elbe River, the construction of a new coal-fired power station and two road projects they had opposed, they also received some significant concessions from the CDU. These included reforming state schools by increasing the number of primary school educational stages, the restoration of trams as public transportation in the city-state, and more pedestrian-friendly real estate development. On 29 November 2010, the coalition collapsed, resulting in an election that was won by SPD. Following the Saarland state election of August 2009, The Greens held the balance of power after a close election where no two-party coalitions could create a stable majority government. After negotiations, the Saarland Greens rejected the option of a left-wing 'red-red-green' coalition with the SPD and The Left (Die Linke) in order to form a centre-right state government with the CDU and Free Democratic Party (FDP), a historical first time that a Jamaica coalition has formed in German politics. In June 2010, in the first state election following the victory of the CDU/CSU and FDP in the 2009 federal election, the "black-yellow" CDU-FDP coalition in North Rhine-Westphalia under Jürgen Rüttgers lost its majority. The Greens and the SPD came one seat short of a governing majority, but after multiple negotiations about coalitions of SPD and Greens with either the FDP or The Left, the SPD and Greens decided to form a minority government, which was possible because under the constitution of North Rhine-Westphalia a plurality of seats is sufficient to elect a minister-president. So a red-green government in a state where it was defeated under Peer Steinbrück in 2005 came into office again on 14 June 2010 with the election of Hannelore Kraft as minister-president (Cabinet Kraft I). The Greens founded the first international chapter of a German political party in the U.S. on 13 April 2008 at the Goethe-Institut in Washington D.C. Its main goal is "to provide a platform for politically active and green-oriented German citizens, in and beyond Washington D.C., to discuss and actively participate in German Green politics. [...] to foster professional and personal exchange, channeling the outcomes towards the political discourse in Germany." In March 2011 (two weeks after the Fukushima nuclear disaster had begun), the Greens made large gains in Rhineland-Palatinate and in Baden-Württemberg. In Baden-Württemberg they became the senior partner in a governing coalition for the first time. Winfried Kretschmann is now the first Green to serve as Minister-President of a German State (Cabinet Kretschmann I and II). Polling data from August 2011 indicated that one in five Germans supported the Greens. From 4 October 2011 to 4 September 2016, the party was represented in all state parliaments. Like the Social Democrats, the Greens backed Chancellor Angela Merkel on most bailout votes in the German parliament during her second term, saying their pro-European stances overrode party politics. Shortly before the elections, the party plummeted to a four-year low in the polls, undermining efforts by Peer Steinbrück's Social Democrats to unseat Merkel. While being in opposition on the federal level since 2005, the Greens have established themselves as a powerful force in Germany's political system. By 2016, the Greens had joined 11 out of 16 state governments in a variety of coalitions. Over the years, they have built up an informal structure called G-coordination to organize interests between the federal party office, the parliamentary group in the Bundestag, and the Greens governing on the state level. The Greens remained the smallest of six parties in the Bundestag in the 2017 federal election, winning 8.9% of votes. After the election, they entered into talks for a Jamaica coalition with the CDU and FDP. Discussions collapsed after the FDP withdrew in November. After the federal election and unsuccessful Jamaica negotiations, the party held elections for two new co-leaders; incumbents Özdemir and Peter did not stand for re-election. Robert Habeck and Annalena Baerbock were elected with 81% and 64% of votes, respectively. Habeck had served as deputy premier and environment minister in Schleswig-Holstein since 2012, while Baerbock had been a leading figure in the party's Brandenburg branch since 2009. Their election was considered a break with tradition, as they were both members of the moderate wing. The Greens saw a major surge in support during the Bavarian and Hessian state elections in October 2018, becoming the second largest party in both. They subsequently rose to second place behind the CDU/CSU in national polling, averaging between 17% and 20% over the next six months. In the 2019 European Parliament election, the Greens achieved their best ever result in a national election, placing second with 20.5% of the vote and winning 21 seats. National polling released after the election showed a major boost for the party. The first poll after the election, conducted by Forsa, showed the Greens in first place on 27%. This was the first time the Greens had ever been in first place in a national opinion poll, and the first time in the history of the Federal Republic that any party other than the CDU/CSU or SPD had placed first in a national poll. This trend continued as polls from May to July showed the CDU/CSU and Greens trading first place, after which point the CDU/CSU pulled ahead once more. The Greens continued to poll in the low 20% range into early 2020. The Greens recorded best-ever results in the Brandenburg (10.8%) and Saxony (8.6%) state elections in September 2019, and subsequently joined coalition governments in both states. They suffered an unexpected decline in the Thuringian election in October, only narrowing retaining their seats with 5.2%. In the February 2020 Hamburg state election, the Greens became the second largest party, winning 24.2% of votes cast. In March 2021, the Greens improved their performance in Baden-Württemberg, where they remained the strongest party with 32.6% of votes, and Rhineland-Palatinate, where they moved into third place with 9.3%. Due to their sustained position as the second most popular party in national polling ahead of the September 2021 federal election, the Greens chose to forgo the traditional dual lead-candidacy in favour of selecting a single Chancellor candidate. Co-leader Annalena Baerbock was announced as Chancellor candidate on 19 April and formally confirmed on 12 June with 98.5% approval. The Greens surged in opinion polls in late April and May, briefly surpassing the CDU as the most popular party in the country, but their numbers slipped back after Baerbock was caught up in several controversies. Her personal popularity also fell below that of both Armin Laschet and Olaf Scholz, the Chancellor candidates for the CDU and SPD, respectively. The party's fortunes did not reverse even after the July floods, which saw climate change return as the most important issue among voters. The situation worsened in August as the SPD surged into first place to the detriment of both the CDU and Greens. The Greens finished in third place in the 2021 federal election with 14.8% of votes. Though their best ever federal election result, it was considered a bitter disappointment in light of their polling numbers during the previous three years. They entered coalition talks with the FDP and SPD, eventually joining a traffic light coalition under Chancellor Olaf Scholz which took office on 8 December 2021. The Greens have five ministers in the Scholz cabinet, including Robert Habeck as Vice-Chancellor and Annalena Baerbock as foreign minister. Since party statute mandates that party leaders may not hold government office, Baerbock and Habeck stepped down after entering cabinet. At a party conference in January 2022, Ricarda Lang and Omid Nouripour were elected to succeed them. At the time of her election, Lang was 28 years old, speaker for women's issues, and a former leader of the Green Youth. 46-year-old Nouripour was foreign affairs spokesman and a member of the Bundestag since 2006. Of the new leaders, Lang is considered a representative of the party's left-wing, while Nouripour represents the right-wing. The party's main ideological trends are green politics and social liberalism. Its political position is generally described to be centre-left, but there are also sources describing the party as centrist. The West German Greens played a crucial role in the development of green politics in Europe, with their original program outlining "four principles: ecological, social, grassroots, and non-violent." Initially ideologically heterogenous, the party took up a position on the radical left in its early years, which were dominated by conflicts between the more left-wing "Fundi" (fundamentalist) and more moderate "Realo" (realist) factions. These conflicts became less significant as the party moved toward the political mainstream in the 1990s. During the 2021 federal election, the WZB Berlin Social Science Center classified the party as the most centrist of Germany's left-wing parties. However, Baerbock campaigned from the left of the SPD, stating that the party's economic program is geared towards the "common good" while the SPD's no longer is. The party has a more pragmatic approach to workers' rights than the SPD. On the other hand, the party clearly holds positions to the left of the SPD on issues such as fiscal discipline, particularly on the debt brake, the climate transition, and property expropriation in Berlin. They are focusing on environmentalist and socially progressive policies. Emphasis is placed on mitigating climate change, reducing carbon emissions, and fostering sustainability and environmentally-friendly practices. They support equality, social justice, and humanitarian responses to events such as the European migrant crisis. Their fiscal platform is flexible and seeks to balance social, economic, and environmental interests. The party is strongly pro-European, advocating European federalism, and promotes wider international cooperation, including strengthening existing alliances. Starting from the leadership of Annalena Baerbock and Robert Habeck, commentators have observed the Greens taking a pragmatic, moderate approach to work with parties from across the political spectrum. Baerbock described their stances and style as a form of "radical realism" attempting to reconcile principles with practical politics. At the same time, the party has denounced populism and division, and placed rhetorical emphasis on optimism and cross-party cooperation. Accompanied by record high popularity and election results, this led some to suggest that the Greens were filling a gap in the political centre, which was left by the declining popularity of the CDU/CSU and SPD. The party has economically left-liberal views. The Greens are regarded as taking a Atlanticist line on defense and pushing for a stronger common EU foreign policy, especially against Russia and China. Green Party co-leader Annalena Baerbock has proposed a post-pacifist foreign policy. She supports eastward expansion of NATO and has considered the number of UN resolutions critical of Israel as "absurd compared to resolutions against other states." The party's program included references to NATO as an "indispensable" part of European security. The Greens have promised to abolish the contested Nord Stream 2 pipeline to ship Russian natural gas to Germany. The party criticized the EU's investment deal with China. In 2016, the Greens criticised Germany's defense plan with Saudi Arabia, which has been waging war in Yemen and has been accused of massive human rights violations. The party remains divided over issues such as nuclear disarmament and U.S. nuclear weapons on German territory. Some Greens want Germany to sign the United Nations' Treaty on the Prohibition of Nuclear Weapons. Ever since the party's inception, The Greens have been concerned with the immediate halt of construction or operation of all nuclear power stations. As an alternative, they promote a shift to non-nuclear renewable energy and a comprehensive program of energy conservation. In 1986, large parts of Germany were covered with radioactive contamination from the Chernobyl disaster and Germans went to great lengths to deal with the contamination. Germany's anti-nuclear stance was strengthened. From the mid-1990s onwards, anti-nuclear protests were primarily directed against transports of radioactive waste in "CASTOR" containers. After the Chernobyl disaster, the Greens became more radicalised and resisted compromise on the nuclear issue. During the 1990s, a re-orientation towards a moderate program occurred, with concern about global warming and ozone depletion taking a more prominent role. During the federal red-green government (1998–2005) many people became disappointed with what they saw as excessive compromise on key Greens policies. Energy policy is still the most important cross-cutting issue in climate and economic policies. Implementation of Green Policy would see electricity generation from 100 percent renewable sources as early as 2040. The development of renewable energy and combined heat and power is also a great opportunity for technical and economic innovation. Solar industry and environmental technologies are already a significant part of key industries providing jobs which need to be developed and promoted vigorously. In addition, a priority of green energy policy is increasing the thermal insulation and energy efficiency of homes, the phaseout of all nuclear energy generation with possible high-efficiency gas-fired power plants operational during the transition phase. The central idea of green politics is sustainable development. The concept of environmental protection is the cornerstone of Alliance 90/The Greens policy. In particular, the economic, energy and transport policy claims are in close interaction with environmental considerations. The Greens acknowledge the natural environment as a high priority and animal protection should be enshrined as a national objective in constitutional law. An effective environmental policy would be based on a common environmental code, with the urgent integration of a climate change bill. During the red-green coalition (1998–2005) a policy of agricultural change was launched labeled as a paradigm shift in agricultural policy towards a more ecological friendly agriculture, which needs to continue. The Greens have praised the European Green Deal, which aims to make the EU climate neutral by 2050. Climate change is at the center of all policy considerations. This includes environmental policy and safety and social aspects. The plans of the Alliance 90/The Greens provide a climate change bill laying down binding reductions to greenhouse gas emissions in Germany by 2020 restricting emissions to minus 40 percent compared to 1990. Alliance 90/The Greens supports the eventual federalization of the European Union into a Federal European Republic (German: Föderale Europäische Republik), i.e. a single federal European sovereign state. A similarly high priority is given to transport policy. The switch from a traveling allowance to a mobility allowance, which is paid regardless of income to all employees, replacing company car privileges. The truck toll will act as a climate protection instrument internalizing the external costs of transport. Railway should be promoted in order to achieve the desired environmental objectives and the comprehensive care of customers. The railway infrastructure is to remain permanently in the public sector, allowing a reduction in expenditure on road construction infrastructure. The Greens want to control privileges on kerosene and for international flights, introduce an air ticket levy. Fossil fuels such as heavy oil or diesel shall be replaced by emission-neutral fuels and green propulsion systems in order to make shipping climate-neutral in the long term. For many years, the Green Party has advocated against the "Ehegattensplitting" policy, under which the incomes of married couples are split for taxation purposes. Furthermore, the Party advocates for a massive increase in federal spending for places in preschools, and for increased investment in education: an additional 1 billion Euros for vocational schools and 200 million Euros more BAföG (Bundesausbildungsförderungsgesetz in German, approximately translated to "the Federal Law for the Advancement of Education") for adults. In its 2013 platform, the Green Party successfully advocated for a minimum wage of 8.50 Euro per hour, which was implemented on 1 January 2015. It continues to press for higher minimum wages. The Greens want the starting retirement age to remain 67, but with some qualifications – for example, a provision for partial retirement. The party supports and has supported various forms of rent regulation. During the 2021 election, the party called for rent hikes to be capped at 2.5% per year. The Greens support progressive taxation and is critical of FDP efforts to cut taxes for top earners. The Green Party supports the implementation of quotas in executive boards, the policy of equal pay for equal work, and continuing the fight against domestic violence. According to its website, the Green Party "fights for the acceptance and against the exclusion of homosexuals, bisexuals, intersex- and transgender people and others". In order to recognize the political persecution that LGBT+ people face abroad, the Green Party wants to extend asylum to LGBTQIA+ people abroad. The policy change was sponsored primarily by Volker Beck, one of the Party's most prominent gay members. Because of the extensive support the Green Party has given the LGBTQIA+ community since its conception, many LGBTQIA+ people vote for the Green Party even if their political ideology does not quite align otherwise. The party supports the legalization and regulation of cannabis and is the sponsor of the proposed German cannabis control bill. Furthermore, the Greens support research on the drug and the use of marijuana for medicinal purposes. A 2000 study by the Infratest Dimap political research company has suggested the Green voter demographic includes those on higher incomes (e.g. above €2000/month) and the party's support is less among households with lower incomes. The same polling research also concluded that the Greens received fewer votes from the unemployed and general working population, with business people favouring the party as well as the centre-right liberal Free Democratic Party. According to Infratest Dimap the Greens received more voters from the age group 34–42 than any other age group and that the young were generally more supportive of the party than the old. (Source: Intrafest Dimap political research company for the ARD.) The Greens have a higher voter demographic in urban areas than rural areas, except for a small number of rural areas with pressing local environmental concerns, such as strip mining or radioactive waste deposits. The cities of Bonn, Cologne, Stuttgart, Berlin, Hamburg, Frankfurt and Munich have among the highest percentages of Green voters in the country. The towns of Aachen, Bonn, Darmstadt, Hanover, Mönchengladbach and Wuppertal have Green mayors. The party has a lower level of support in the states of the former German Democratic Republic (East Germany); nonetheless, the party is currently represented in every state landtag except Saarland. Results of Alliance 90/The Greens (East) and The Greens (West)
[ { "paragraph_id": 0, "text": "Alliance 90/The Greens (German: Bündnis 90/Die Grünen, pronounced [ˈbʏntnɪs ˈnɔʏntsɪç diː ˈɡʁyːnən] ), often simply referred to as the Greens (Grüne, pronounced [ˈɡʁyːnə] ), is a green political party in Germany. It was formed in 1993 by the merger of The Greens (formed in West Germany in 1980) and Alliance 90 (formed in East Germany in 1990). The Greens had itself merged with the East German Green Party after German reunification in 1990.", "title": "" }, { "paragraph_id": 1, "text": "Since January 2022, Ricarda Lang and Omid Nouripour have been co-leaders of the party. It currently holds 118 of the 736 seats in the Bundestag, having won 14.8% of votes cast in the 2021 federal election, and its parliamentary group is the third largest of six. Its parliamentary co-leaders are Britta Haßelmann and Katharina Dröge. The Greens have been part of the federal government twice: first as a junior partner to the Social Democrats (SPD) from 1998 to 2005, and then with the SPD and the Free Democratic Party (FDP) in the traffic light coalition since the 2021 German federal election. In the incumbent Scholz cabinet, the Greens have five ministers, including Vice-Chancellor Robert Habeck and Foreign Minister Annalena Baerbock.", "title": "" }, { "paragraph_id": 2, "text": "The party holds seats in all of Germany's state legislatures, except the Saarland, and is a member of coalition governments in eleven states. Winfried Kretschmann, Minister-President of Baden-Württemberg, is the only Green head of government in Germany. The Landtag of Baden-Württemberg is also the only state legislature in which Alliance 90/The Greens is the largest party; it is the second largest party in the legislatures of Berlin, Hamburg, and Schleswig-Holstein.", "title": "" }, { "paragraph_id": 3, "text": "Alliance 90/The Greens is a founding member of the European Green Party and the Greens–European Free Alliance group in the European Parliament. It is currently the largest party in the G/EFA group, with 21 MEPs. In the 2019 European election, Alliance 90/The Greens was the second largest party in Germany, winning 20.5% of votes cast. The party had 126,451 members in December 2022, making it the fourth largest party in Germany by membership.", "title": "" }, { "paragraph_id": 4, "text": "The Green Party was initially founded in West Germany as Die Grünen (the Greens) in January 1980. It grew out of the anti-nuclear energy, environmental, peace, new left, and new social movements of the late 20th century.", "title": "Former names and variants in the states" }, { "paragraph_id": 5, "text": "Grüne Liste Umweltschutz (green list for environmental protection) was the name used for some branches in Lower Saxony and other states in the Federal Republic of Germany. These groups were founded in 1977 and took part in several elections. Most of them merged with The Greens in 1980.", "title": "Former names and variants in the states" }, { "paragraph_id": 6, "text": "The West Berlin state branch of The Greens was founded as Alternative Liste, or precisely, Alternative Liste für Demokratie und Umweltschutz (AL; alternative list for democracy and environmental protection) in 1978 and became the official West Berlin branch of The Greens in 1980. In 1993 it renamed to Alliance 90/The Greens Berlin after the merger with East Berlin's Greens and Alliance 90.", "title": "Former names and variants in the states" }, { "paragraph_id": 7, "text": "The Hamburg state branch of the Green Party was called Grün-Alternative Liste Hamburg (GAL; green-alternative list) from its foundation in 1982 until 2012. In 1984 it became the official Hamburg branch of The Greens.", "title": "Former names and variants in the states" }, { "paragraph_id": 8, "text": "The political party The Greens (German: Die Grünen) sprung out of the wave of New Social Movements that were active in the 1970s, including environmentalist, anti-war, and anti-nuclear movements which can trace their origin to the student protests of 1968. Officially founded as a German national party on 13 January 1980 in Karlsruhe, the party sought to give these movements political and parliamentary representation, as the pre-existing peoples parties were not organised in a way to address their stated issues. Its membership included organisers from former attempts to achieve institutional representation such as GLU and AUD. Opposition to pollution, use of nuclear power, NATO military action, and certain aspects of industrialised society were principal campaign issues. The party also championed sexual liberation and the abolition of age of consent laws.", "title": "History" }, { "paragraph_id": 9, "text": "The formation of a party was purportedly first discussed by movement leaders in 1978. Important figures in the first years were – among others – Petra Kelly, Joschka Fischer, Gert Bastian, Lukas Beckmann, Rudolf Bahro, Joseph Beuys, Antje Vollmer, Herbert Gruhl, August Haußleiter, Luise Rinser, Dirk Schneider, Christian Ströbele, Jutta Ditfurth, and Baldur Springmann.", "title": "History" }, { "paragraph_id": 10, "text": "In the foundational congress of 1980, the ideological tenets of the party were consolidated, proclaiming the famous Four Pillars of the Green Party:", "title": "History" }, { "paragraph_id": 11, "text": "In 1982, the conservative factions of the Greens broke away to form the Ecological Democratic Party (ÖDP). Those who remained in the Green party were more strongly pacifist and against restrictions on immigration and reproductive rights, while supporting the legalisation of cannabis use, placing a higher priority on working for LGBT rights, and tending to advocate what they described as \"anti-authoritarian\" concepts of education and child-rearing. They also tended to identify more closely with a culture of protest and civil disobedience, frequently clashing with police at demonstrations against nuclear weapons, nuclear energy, and the construction of a new runway (Startbahn West) at Frankfurt Airport. Those who left the party at the time might have felt similarly about some of these issues, but did not identify with the forms of protest that Green party members took part in.", "title": "History" }, { "paragraph_id": 12, "text": "After some success at state-level elections, the party won 27 seats with 5.7% of the vote in the Bundestag, the lower house of the German parliament, in the 1983 federal election. Among the important political issues at the time was the deployment of Pershing II IRBMs and nuclear-tipped cruise missiles by the U.S. and NATO on West German soil, generating strong opposition in the general population that found an outlet in mass demonstrations. The newly formed party was able to draw on this popular movement to recruit support. Partly due to the impact of the Chernobyl disaster in 1986, and to growing awareness of the threat of air pollution and acid rain to German forests (Waldsterben), the Greens increased their share of the vote to 8.3% in the 1987 federal election. Around this time, Joschka Fischer emerged as the unofficial leader of the party, which he remained until resigning all leadership posts following the 2005 federal election.", "title": "History" }, { "paragraph_id": 13, "text": "The Greens were the target of attempts by the East German secret police to enlist the cooperation of members who were willing to align the party with the agenda of the German Democratic Republic. The party ranks included several politicians who were later discovered to have been Stasi agents, including Bundestag representative Dirk Schneider, European Parliament representative Brigitte Heinrich, and Red Army Faction defense lawyer Klaus Croissant. Greens politician and Bundestag representative Gert Bastian was also a founding member of Generals for Peace [de], a pacifist group created and funded by the Stasi, the revelation of which may have contributed to the murder-suicide in which he killed his partner and Greens founder Petra Kelly. A study commissioned by the Greens determined that 15 to 20 members intimately cooperated with the Stasi and another 450 to 500 had been informants.", "title": "History" }, { "paragraph_id": 14, "text": "Until 1987, the Greens included a faction involved in pedophile activism, the SchwuP short for Arbeitsgemeinschaft \"Schwule, Päderasten und Transsexuelle\" (approx. working group \"Gays, Pederasts and Transsexuals\"). This faction campaigned for repealing § 176 of the German penal code, dealing with child sexual abuse. This group was controversial within the party itself, and was seen as partly responsible for the poor election result of 1985. This controversy re-surfaced in 2013 and chairwoman Claudia Roth stated she welcomed an independent scientific investigation on the extent of influence pedophile activists had on the party in the mid-1980s. In November 2014, the political scientist Franz Walter presented the final report about his research on a press conference.", "title": "History" }, { "paragraph_id": 15, "text": "In the 1990 federal elections, taking place post-reunified Germany, the Greens in the West did not pass the 5% limit required to win seats in the Bundestag. It was only due to a temporary modification of German election law, applying the five-percent \"hurdle\" separately in East and West Germany, that the Greens acquired any parliamentary seats at all. This happened because in the new states of Germany, the Greens, in a joint effort with Alliance 90, a heterogeneous grouping of civil rights activists, were able to gain more than 5% of the vote. Some critics attribute this poor performance to the reluctance of the campaign to cater to the prevalent mood of nationalism, instead focusing on subjects such as global warming. A campaign poster at the time proudly stated, \"Everyone is talking about Germany; we're talking about the weather!\", paraphrasing a popular slogan of Deutsche Bundesbahn, the German national railway. The party also opposed imminent reunification that was in process, instead wanting to initiate debates on ecology and nuclear issues before reunification causing a drop in support in Western Germany. After the 1994 federal election; however, the merged party returned to the Bundestag, and the Greens received 7.3% of the vote nationwide and 49 seats.", "title": "History" }, { "paragraph_id": 16, "text": "In the 1998 federal election, despite a slight fall in their percentage of the vote (6.7%), the Greens retained 47 seats and joined the federal government for the first time in 'Red-Green' coalition government with the Social Democratic Party of Germany (SPD). Joschka Fischer became Vice-Chancellor of Germany and foreign minister in the new government, which had two other Green ministers (Andrea Fischer, later Renate Künast, and Jürgen Trittin).", "title": "History" }, { "paragraph_id": 17, "text": "Almost immediately the party was plunged into a crisis by the question of German participation in the NATO actions in Kosovo. Numerous anti-war party members resigned their party membership when the first post-war deployment of German troops in a military conflict abroad occurred under a Red-Green government, and the party began to experience a long string of defeats in local and state-level elections. Disappointment with the Green participation in government increased when anti-nuclear power activists realised that shutting down the nation's nuclear power stations would not happen as quickly as they wished, and numerous pro-business SPD members of the federal cabinet opposed the environmentalist agenda of the Greens, calling for tacit compromises.", "title": "History" }, { "paragraph_id": 18, "text": "In 2001, the party experienced a further crisis as some Green Members of Parliament refused to back the government's plan of sending military personnel to help with the 2001 invasion of Afghanistan. Chancellor Gerhard Schröder called a vote of confidence, tying it to his strategy on the war. Four Green MPs and one Social Democrat voted against the government, but Schröder was still able to command a majority.", "title": "History" }, { "paragraph_id": 19, "text": "On the other hand, the Greens achieved a major success as a governing party through the 2000 decision to phase out the use of nuclear energy. Minister of Environment, Nature Conservation and Nuclear Safety Jürgen Trittin reached an agreement with energy companies on the gradual phasing out of the country's nineteen nuclear power plants and a cessation of civil usage of nuclear power by 2020. This was authorised through the Nuclear Exit Law. Based on an estimate of 32 years as the normal period of operation for a nuclear power plant, the agreement defines precisely how much energy a power plant is allowed to produce before being shut down. This law has since been overturned.", "title": "History" }, { "paragraph_id": 20, "text": "Despite the crises of the preceding electoral period, in the 2002 federal election, the Greens increased their total to 55 seats (in a smaller parliament) and 8.6%. This was partly due to the perception that the internal debate over the war in Afghanistan had been more honest and open than in other parties, and one of the MPs who had voted against the Afghanistan deployment, Hans-Christian Ströbele, was directly elected to the Bundestag as a district representative for the Friedrichshain-Kreuzberg – Prenzlauer Berg East constituency in Berlin, becoming the first Green to ever gain a first-past-the-post seat in Germany.", "title": "History" }, { "paragraph_id": 21, "text": "The Greens benefited from increased inroads among traditionally left-wing demographics which had benefited from Green-initiated legislation in the 1998–2002 term, such as environmentalists (Renewable Energies Act) and LGBT groups (Registered Partnership Law). Perhaps most important for determining the success of both the Greens and the SPD was the increasing threat of war in Iraq, which was highly unpopular with the German public, and helped gather votes for the parties which had taken a stand against participation in this war. Despite losses for the SPD, the Red-Green coalition government retained a very slight majority in the Bundestag (4 seats) and was renewed, with Joschka Fischer as foreign minister, Renate Künast as minister for consumer protection, nutrition and agriculture, and Jürgen Trittin as minister for the environment.", "title": "History" }, { "paragraph_id": 22, "text": "One internal issue in 2002 was the failed attempt to settle a long-standing discussion about the question of whether members of parliament should be allowed to become members of the party executive. Two party conventions declined to change the party statute. The necessary majority of two-thirds was missed by a small margin. As a result, former party chairpersons Fritz Kuhn and Claudia Roth (who had been elected to parliament that year) were no longer able to continue in their executive function and were replaced by former party secretary general Reinhard Bütikofer and former Bundestag member Angelika Beer. The party then held a member referendum on this question in the spring of 2003 which changed the party statute. Now members of parliament may be elected for two of the six seats of the party executive, as long as they are not ministers or caucus leaders. 57% of all party members voted in the member referendum, with 67% voting in favor of the change. The referendum was only the second in the history of Alliance 90/The Greens, the first having been held about the merger of the Greens and Alliance 90. In 2004, after Angelika Beer was elected to the European parliament, Claudia Roth was elected to replace her as party chair.", "title": "History" }, { "paragraph_id": 23, "text": "The only party convention in 2003 was planned for November 2003, but about 20% of the local organisations forced the federal party to hold a special party convention in Cottbus early to discuss the party position regarding Agenda 2010, a major reform of the German welfare programmes planned by Chancellor Schröder.", "title": "History" }, { "paragraph_id": 24, "text": "The November 2003 party convention was held in Dresden and decided the election platform for the 2004 European Parliament elections. The German Green list for these elections was headed by Rebecca Harms (then leader of the Green party in Lower Saxony) and Daniel Cohn-Bendit, previously Member of the European Parliament for The Greens of France. The November 2003 convention is also noteworthy because it was the first convention of a German political party ever to use an electronic voting system.", "title": "History" }, { "paragraph_id": 25, "text": "The Greens gained a record 13 of Germany's 99 seats in these elections, mainly due to the perceived competence of Green ministers in the federal government and the unpopularity of the Social Democratic Party.", "title": "History" }, { "paragraph_id": 26, "text": "In early 2005, the Greens were the target of the German Visa Affair 2005, instigated in the media by the Christian Democratic Union (CDU). At the end of April 2005, they celebrated the decommissioning of the Obrigheim nuclear power station. They also continue to support a bill for an Anti-Discrimination Law (de: Allgemeines Gleichbehandlungsgesetz) in the Bundestag.", "title": "History" }, { "paragraph_id": 27, "text": "In May 2005, the only remaining state-level red-green coalition government lost the vote in the North Rhine-Westphalia state election, leaving only the federal government with participation of the Greens (apart from local governments). In the early 2005 federal election the party incurred very small losses and achieved 8.1% of the vote and 51 seats. However, due to larger losses of the SPD, the previous coalition no longer had a majority in the Bundestag.", "title": "History" }, { "paragraph_id": 28, "text": "For almost two years after the federal election in 2005, the Greens were not part of any government at the state or federal level. In June 2007, the Greens in Bremen entered into a coalition with the Social Democratic Party (SPD) following the 2007 Bremen state election.", "title": "History" }, { "paragraph_id": 29, "text": "In April 2008, following the 2008 Hamburg state election, the Green-Alternative List (GAL) in Hamburg entered into a coalition with the Christian Democratic Union (CDU), the first such state-level coalition in Germany. Although the GAL had to agree to the deepening of the Elbe River, the construction of a new coal-fired power station and two road projects they had opposed, they also received some significant concessions from the CDU. These included reforming state schools by increasing the number of primary school educational stages, the restoration of trams as public transportation in the city-state, and more pedestrian-friendly real estate development. On 29 November 2010, the coalition collapsed, resulting in an election that was won by SPD.", "title": "History" }, { "paragraph_id": 30, "text": "Following the Saarland state election of August 2009, The Greens held the balance of power after a close election where no two-party coalitions could create a stable majority government. After negotiations, the Saarland Greens rejected the option of a left-wing 'red-red-green' coalition with the SPD and The Left (Die Linke) in order to form a centre-right state government with the CDU and Free Democratic Party (FDP), a historical first time that a Jamaica coalition has formed in German politics.", "title": "History" }, { "paragraph_id": 31, "text": "In June 2010, in the first state election following the victory of the CDU/CSU and FDP in the 2009 federal election, the \"black-yellow\" CDU-FDP coalition in North Rhine-Westphalia under Jürgen Rüttgers lost its majority. The Greens and the SPD came one seat short of a governing majority, but after multiple negotiations about coalitions of SPD and Greens with either the FDP or The Left, the SPD and Greens decided to form a minority government, which was possible because under the constitution of North Rhine-Westphalia a plurality of seats is sufficient to elect a minister-president. So a red-green government in a state where it was defeated under Peer Steinbrück in 2005 came into office again on 14 June 2010 with the election of Hannelore Kraft as minister-president (Cabinet Kraft I).", "title": "History" }, { "paragraph_id": 32, "text": "The Greens founded the first international chapter of a German political party in the U.S. on 13 April 2008 at the Goethe-Institut in Washington D.C. Its main goal is \"to provide a platform for politically active and green-oriented German citizens, in and beyond Washington D.C., to discuss and actively participate in German Green politics. [...] to foster professional and personal exchange, channeling the outcomes towards the political discourse in Germany.\"", "title": "History" }, { "paragraph_id": 33, "text": "In March 2011 (two weeks after the Fukushima nuclear disaster had begun), the Greens made large gains in Rhineland-Palatinate and in Baden-Württemberg. In Baden-Württemberg they became the senior partner in a governing coalition for the first time. Winfried Kretschmann is now the first Green to serve as Minister-President of a German State (Cabinet Kretschmann I and II). Polling data from August 2011 indicated that one in five Germans supported the Greens. From 4 October 2011 to 4 September 2016, the party was represented in all state parliaments.", "title": "History" }, { "paragraph_id": 34, "text": "Like the Social Democrats, the Greens backed Chancellor Angela Merkel on most bailout votes in the German parliament during her second term, saying their pro-European stances overrode party politics. Shortly before the elections, the party plummeted to a four-year low in the polls, undermining efforts by Peer Steinbrück's Social Democrats to unseat Merkel. While being in opposition on the federal level since 2005, the Greens have established themselves as a powerful force in Germany's political system. By 2016, the Greens had joined 11 out of 16 state governments in a variety of coalitions. Over the years, they have built up an informal structure called G-coordination to organize interests between the federal party office, the parliamentary group in the Bundestag, and the Greens governing on the state level.", "title": "History" }, { "paragraph_id": 35, "text": "The Greens remained the smallest of six parties in the Bundestag in the 2017 federal election, winning 8.9% of votes. After the election, they entered into talks for a Jamaica coalition with the CDU and FDP. Discussions collapsed after the FDP withdrew in November.", "title": "History" }, { "paragraph_id": 36, "text": "After the federal election and unsuccessful Jamaica negotiations, the party held elections for two new co-leaders; incumbents Özdemir and Peter did not stand for re-election. Robert Habeck and Annalena Baerbock were elected with 81% and 64% of votes, respectively. Habeck had served as deputy premier and environment minister in Schleswig-Holstein since 2012, while Baerbock had been a leading figure in the party's Brandenburg branch since 2009. Their election was considered a break with tradition, as they were both members of the moderate wing.", "title": "History" }, { "paragraph_id": 37, "text": "The Greens saw a major surge in support during the Bavarian and Hessian state elections in October 2018, becoming the second largest party in both. They subsequently rose to second place behind the CDU/CSU in national polling, averaging between 17% and 20% over the next six months.", "title": "History" }, { "paragraph_id": 38, "text": "In the 2019 European Parliament election, the Greens achieved their best ever result in a national election, placing second with 20.5% of the vote and winning 21 seats. National polling released after the election showed a major boost for the party. The first poll after the election, conducted by Forsa, showed the Greens in first place on 27%. This was the first time the Greens had ever been in first place in a national opinion poll, and the first time in the history of the Federal Republic that any party other than the CDU/CSU or SPD had placed first in a national poll. This trend continued as polls from May to July showed the CDU/CSU and Greens trading first place, after which point the CDU/CSU pulled ahead once more. The Greens continued to poll in the low 20% range into early 2020.", "title": "History" }, { "paragraph_id": 39, "text": "The Greens recorded best-ever results in the Brandenburg (10.8%) and Saxony (8.6%) state elections in September 2019, and subsequently joined coalition governments in both states. They suffered an unexpected decline in the Thuringian election in October, only narrowing retaining their seats with 5.2%. In the February 2020 Hamburg state election, the Greens became the second largest party, winning 24.2% of votes cast.", "title": "History" }, { "paragraph_id": 40, "text": "In March 2021, the Greens improved their performance in Baden-Württemberg, where they remained the strongest party with 32.6% of votes, and Rhineland-Palatinate, where they moved into third place with 9.3%.", "title": "History" }, { "paragraph_id": 41, "text": "Due to their sustained position as the second most popular party in national polling ahead of the September 2021 federal election, the Greens chose to forgo the traditional dual lead-candidacy in favour of selecting a single Chancellor candidate. Co-leader Annalena Baerbock was announced as Chancellor candidate on 19 April and formally confirmed on 12 June with 98.5% approval.", "title": "History" }, { "paragraph_id": 42, "text": "The Greens surged in opinion polls in late April and May, briefly surpassing the CDU as the most popular party in the country, but their numbers slipped back after Baerbock was caught up in several controversies. Her personal popularity also fell below that of both Armin Laschet and Olaf Scholz, the Chancellor candidates for the CDU and SPD, respectively. The party's fortunes did not reverse even after the July floods, which saw climate change return as the most important issue among voters. The situation worsened in August as the SPD surged into first place to the detriment of both the CDU and Greens.", "title": "History" }, { "paragraph_id": 43, "text": "The Greens finished in third place in the 2021 federal election with 14.8% of votes. Though their best ever federal election result, it was considered a bitter disappointment in light of their polling numbers during the previous three years. They entered coalition talks with the FDP and SPD, eventually joining a traffic light coalition under Chancellor Olaf Scholz which took office on 8 December 2021. The Greens have five ministers in the Scholz cabinet, including Robert Habeck as Vice-Chancellor and Annalena Baerbock as foreign minister.", "title": "History" }, { "paragraph_id": 44, "text": "Since party statute mandates that party leaders may not hold government office, Baerbock and Habeck stepped down after entering cabinet. At a party conference in January 2022, Ricarda Lang and Omid Nouripour were elected to succeed them. At the time of her election, Lang was 28 years old, speaker for women's issues, and a former leader of the Green Youth. 46-year-old Nouripour was foreign affairs spokesman and a member of the Bundestag since 2006. Of the new leaders, Lang is considered a representative of the party's left-wing, while Nouripour represents the right-wing.", "title": "History" }, { "paragraph_id": 45, "text": "The party's main ideological trends are green politics and social liberalism. Its political position is generally described to be centre-left, but there are also sources describing the party as centrist. The West German Greens played a crucial role in the development of green politics in Europe, with their original program outlining \"four principles: ecological, social, grassroots, and non-violent.\" Initially ideologically heterogenous, the party took up a position on the radical left in its early years, which were dominated by conflicts between the more left-wing \"Fundi\" (fundamentalist) and more moderate \"Realo\" (realist) factions. These conflicts became less significant as the party moved toward the political mainstream in the 1990s.", "title": "Ideology and policies" }, { "paragraph_id": 46, "text": "During the 2021 federal election, the WZB Berlin Social Science Center classified the party as the most centrist of Germany's left-wing parties. However, Baerbock campaigned from the left of the SPD, stating that the party's economic program is geared towards the \"common good\" while the SPD's no longer is. The party has a more pragmatic approach to workers' rights than the SPD. On the other hand, the party clearly holds positions to the left of the SPD on issues such as fiscal discipline, particularly on the debt brake, the climate transition, and property expropriation in Berlin. They are focusing on environmentalist and socially progressive policies. Emphasis is placed on mitigating climate change, reducing carbon emissions, and fostering sustainability and environmentally-friendly practices. They support equality, social justice, and humanitarian responses to events such as the European migrant crisis. Their fiscal platform is flexible and seeks to balance social, economic, and environmental interests. The party is strongly pro-European, advocating European federalism, and promotes wider international cooperation, including strengthening existing alliances.", "title": "Ideology and policies" }, { "paragraph_id": 47, "text": "Starting from the leadership of Annalena Baerbock and Robert Habeck, commentators have observed the Greens taking a pragmatic, moderate approach to work with parties from across the political spectrum. Baerbock described their stances and style as a form of \"radical realism\" attempting to reconcile principles with practical politics. At the same time, the party has denounced populism and division, and placed rhetorical emphasis on optimism and cross-party cooperation. Accompanied by record high popularity and election results, this led some to suggest that the Greens were filling a gap in the political centre, which was left by the declining popularity of the CDU/CSU and SPD.", "title": "Ideology and policies" }, { "paragraph_id": 48, "text": "The party has economically left-liberal views.", "title": "Ideology and policies" }, { "paragraph_id": 49, "text": "The Greens are regarded as taking a Atlanticist line on defense and pushing for a stronger common EU foreign policy, especially against Russia and China. Green Party co-leader Annalena Baerbock has proposed a post-pacifist foreign policy. She supports eastward expansion of NATO and has considered the number of UN resolutions critical of Israel as \"absurd compared to resolutions against other states.\" The party's program included references to NATO as an \"indispensable\" part of European security. The Greens have promised to abolish the contested Nord Stream 2 pipeline to ship Russian natural gas to Germany. The party criticized the EU's investment deal with China. In 2016, the Greens criticised Germany's defense plan with Saudi Arabia, which has been waging war in Yemen and has been accused of massive human rights violations.", "title": "Ideology and policies" }, { "paragraph_id": 50, "text": "The party remains divided over issues such as nuclear disarmament and U.S. nuclear weapons on German territory. Some Greens want Germany to sign the United Nations' Treaty on the Prohibition of Nuclear Weapons.", "title": "Ideology and policies" }, { "paragraph_id": 51, "text": "Ever since the party's inception, The Greens have been concerned with the immediate halt of construction or operation of all nuclear power stations. As an alternative, they promote a shift to non-nuclear renewable energy and a comprehensive program of energy conservation.", "title": "Ideology and policies" }, { "paragraph_id": 52, "text": "In 1986, large parts of Germany were covered with radioactive contamination from the Chernobyl disaster and Germans went to great lengths to deal with the contamination. Germany's anti-nuclear stance was strengthened. From the mid-1990s onwards, anti-nuclear protests were primarily directed against transports of radioactive waste in \"CASTOR\" containers.", "title": "Ideology and policies" }, { "paragraph_id": 53, "text": "After the Chernobyl disaster, the Greens became more radicalised and resisted compromise on the nuclear issue. During the 1990s, a re-orientation towards a moderate program occurred, with concern about global warming and ozone depletion taking a more prominent role. During the federal red-green government (1998–2005) many people became disappointed with what they saw as excessive compromise on key Greens policies.", "title": "Ideology and policies" }, { "paragraph_id": 54, "text": "Energy policy is still the most important cross-cutting issue in climate and economic policies. Implementation of Green Policy would see electricity generation from 100 percent renewable sources as early as 2040. The development of renewable energy and combined heat and power is also a great opportunity for technical and economic innovation. Solar industry and environmental technologies are already a significant part of key industries providing jobs which need to be developed and promoted vigorously. In addition, a priority of green energy policy is increasing the thermal insulation and energy efficiency of homes, the phaseout of all nuclear energy generation with possible high-efficiency gas-fired power plants operational during the transition phase.", "title": "Ideology and policies" }, { "paragraph_id": 55, "text": "The central idea of green politics is sustainable development. The concept of environmental protection is the cornerstone of Alliance 90/The Greens policy. In particular, the economic, energy and transport policy claims are in close interaction with environmental considerations. The Greens acknowledge the natural environment as a high priority and animal protection should be enshrined as a national objective in constitutional law. An effective environmental policy would be based on a common environmental code, with the urgent integration of a climate change bill. During the red-green coalition (1998–2005) a policy of agricultural change was launched labeled as a paradigm shift in agricultural policy towards a more ecological friendly agriculture, which needs to continue.", "title": "Ideology and policies" }, { "paragraph_id": 56, "text": "The Greens have praised the European Green Deal, which aims to make the EU climate neutral by 2050. Climate change is at the center of all policy considerations. This includes environmental policy and safety and social aspects. The plans of the Alliance 90/The Greens provide a climate change bill laying down binding reductions to greenhouse gas emissions in Germany by 2020 restricting emissions to minus 40 percent compared to 1990.", "title": "Ideology and policies" }, { "paragraph_id": 57, "text": "Alliance 90/The Greens supports the eventual federalization of the European Union into a Federal European Republic (German: Föderale Europäische Republik), i.e. a single federal European sovereign state.", "title": "Ideology and policies" }, { "paragraph_id": 58, "text": "A similarly high priority is given to transport policy. The switch from a traveling allowance to a mobility allowance, which is paid regardless of income to all employees, replacing company car privileges. The truck toll will act as a climate protection instrument internalizing the external costs of transport. Railway should be promoted in order to achieve the desired environmental objectives and the comprehensive care of customers. The railway infrastructure is to remain permanently in the public sector, allowing a reduction in expenditure on road construction infrastructure. The Greens want to control privileges on kerosene and for international flights, introduce an air ticket levy.", "title": "Ideology and policies" }, { "paragraph_id": 59, "text": "Fossil fuels such as heavy oil or diesel shall be replaced by emission-neutral fuels and green propulsion systems in order to make shipping climate-neutral in the long term.", "title": "Ideology and policies" }, { "paragraph_id": 60, "text": "For many years, the Green Party has advocated against the \"Ehegattensplitting\" policy, under which the incomes of married couples are split for taxation purposes. Furthermore, the Party advocates for a massive increase in federal spending for places in preschools, and for increased investment in education: an additional 1 billion Euros for vocational schools and 200 million Euros more BAföG (Bundesausbildungsförderungsgesetz in German, approximately translated to \"the Federal Law for the Advancement of Education\") for adults.", "title": "Ideology and policies" }, { "paragraph_id": 61, "text": "In its 2013 platform, the Green Party successfully advocated for a minimum wage of 8.50 Euro per hour, which was implemented on 1 January 2015. It continues to press for higher minimum wages.", "title": "Ideology and policies" }, { "paragraph_id": 62, "text": "The Greens want the starting retirement age to remain 67, but with some qualifications – for example, a provision for partial retirement.", "title": "Ideology and policies" }, { "paragraph_id": 63, "text": "The party supports and has supported various forms of rent regulation. During the 2021 election, the party called for rent hikes to be capped at 2.5% per year.", "title": "Ideology and policies" }, { "paragraph_id": 64, "text": "The Greens support progressive taxation and is critical of FDP efforts to cut taxes for top earners.", "title": "Ideology and policies" }, { "paragraph_id": 65, "text": "The Green Party supports the implementation of quotas in executive boards, the policy of equal pay for equal work, and continuing the fight against domestic violence. According to its website, the Green Party \"fights for the acceptance and against the exclusion of homosexuals, bisexuals, intersex- and transgender people and others\".", "title": "Ideology and policies" }, { "paragraph_id": 66, "text": "In order to recognize the political persecution that LGBT+ people face abroad, the Green Party wants to extend asylum to LGBTQIA+ people abroad. The policy change was sponsored primarily by Volker Beck, one of the Party's most prominent gay members. Because of the extensive support the Green Party has given the LGBTQIA+ community since its conception, many LGBTQIA+ people vote for the Green Party even if their political ideology does not quite align otherwise.", "title": "Ideology and policies" }, { "paragraph_id": 67, "text": "The party supports the legalization and regulation of cannabis and is the sponsor of the proposed German cannabis control bill.", "title": "Ideology and policies" }, { "paragraph_id": 68, "text": "Furthermore, the Greens support research on the drug and the use of marijuana for medicinal purposes.", "title": "Ideology and policies" }, { "paragraph_id": 69, "text": "A 2000 study by the Infratest Dimap political research company has suggested the Green voter demographic includes those on higher incomes (e.g. above €2000/month) and the party's support is less among households with lower incomes. The same polling research also concluded that the Greens received fewer votes from the unemployed and general working population, with business people favouring the party as well as the centre-right liberal Free Democratic Party. According to Infratest Dimap the Greens received more voters from the age group 34–42 than any other age group and that the young were generally more supportive of the party than the old. (Source: Intrafest Dimap political research company for the ARD.)", "title": "Electorate" }, { "paragraph_id": 70, "text": "The Greens have a higher voter demographic in urban areas than rural areas, except for a small number of rural areas with pressing local environmental concerns, such as strip mining or radioactive waste deposits. The cities of Bonn, Cologne, Stuttgart, Berlin, Hamburg, Frankfurt and Munich have among the highest percentages of Green voters in the country. The towns of Aachen, Bonn, Darmstadt, Hanover, Mönchengladbach and Wuppertal have Green mayors. The party has a lower level of support in the states of the former German Democratic Republic (East Germany); nonetheless, the party is currently represented in every state landtag except Saarland.", "title": "Electorate" }, { "paragraph_id": 71, "text": "Results of Alliance 90/The Greens (East) and The Greens (West)", "title": "Election results" } ]
Alliance 90/The Greens, often simply referred to as the Greens, is a green political party in Germany. It was formed in 1993 by the merger of The Greens and Alliance 90. The Greens had itself merged with the East German Green Party after German reunification in 1990. Since January 2022, Ricarda Lang and Omid Nouripour have been co-leaders of the party. It currently holds 118 of the 736 seats in the Bundestag, having won 14.8% of votes cast in the 2021 federal election, and its parliamentary group is the third largest of six. Its parliamentary co-leaders are Britta Haßelmann and Katharina Dröge. The Greens have been part of the federal government twice: first as a junior partner to the Social Democrats (SPD) from 1998 to 2005, and then with the SPD and the Free Democratic Party (FDP) in the traffic light coalition since the 2021 German federal election. In the incumbent Scholz cabinet, the Greens have five ministers, including Vice-Chancellor Robert Habeck and Foreign Minister Annalena Baerbock. The party holds seats in all of Germany's state legislatures, except the Saarland, and is a member of coalition governments in eleven states. Winfried Kretschmann, Minister-President of Baden-Württemberg, is the only Green head of government in Germany. The Landtag of Baden-Württemberg is also the only state legislature in which Alliance 90/The Greens is the largest party; it is the second largest party in the legislatures of Berlin, Hamburg, and Schleswig-Holstein. Alliance 90/The Greens is a founding member of the European Green Party and the Greens–European Free Alliance group in the European Parliament. It is currently the largest party in the G/EFA group, with 21 MEPs. In the 2019 European election, Alliance 90/The Greens was the second largest party in Germany, winning 20.5% of votes cast. The party had 126,451 members in December 2022, making it the fourth largest party in Germany by membership.
2001-11-09T23:23:12Z
2023-12-31T20:00:35Z
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https://en.wikipedia.org/wiki/Alliance_90/The_Greens
12,248
Gheorghe Zamfir
Gheorghe Zamfir (Romanian pronunciation: [ˈɡe̯orɡe zamˈfir] ; born April 6, 1941) is a Romanian nai (pan flute) musician. Zamfir is known for playing an expanded version of normally 20-pipe nai, with 22, 25, 28 or even 30 pipes, to increase its range, and obtaining as many as eight overtones (additional to the fundamental tone) from each pipe by changing his embouchure. He is known as "The Master of the Pan Flute". Zamfir came to the public eye when he was approached by Swiss ethnomusicologist Marcel Cellier, who extensively researched Romanian folk music in the 1960s. The composer Vladimir Cosma brought Zamfir with his pan flute to Western European countries for the first time in 1972 as the soloist in Cosma's original music for the movie Le grand blond avec une chaussure noire. The movie received several awards, including the Top Foreign Film from the National Board of Review in 1973. Zamfir continued to perform as a soloist in movie soundtracks by composers Francis Lai, Ennio Morricone and many others. Largely through television commercials where he was billed as "Zamfir, Master of the Pan Flute", he introduced the folk instrument to a modern audience and revived it from obscurity. In 1966, Zamfir was appointed conductor of the "Ciocîrlia Orchestra", one of the most prestigious state ensembles of Romania, destined for concert tours abroad. This created the opportunity for composition and arranging. In 1969 he left Ciocîrlia and started his own taraf (small band) and in 1970 he had his first longer term contract in Paris. Zamfir discovered the much greater freedom for artistic adventure. His taraf consisted of: Ion Drăgoi (violin), Ion Lăceanu (flutes), Dumitru Fărcaș (tarogato), Petre Vidrean (double bass) and Tony Iordache (cymbalum) all number one soloists in their country. This taraf made some excellent recordings (CD Zamfir a Paris). He changed the composition of the band soon after: Efta Botoca (violin), Marin Chisar (flutes), Dorin Ciobaru and Pavel Cebzan (clarinet and tarogato), Vasile Pandelescu (accordion), Petre Vidrean (bass) and Pantelimon Stînga (cymbalum). It is said that this change was made to increase the command of Zamfir and have more artistic freedom. A turning point was the recording of Zamfir's composition "Messe pour la Paix" (Philips). His taraf joined a choir and a symphonic orchestra. This was evidence of the growing ambition. While the Philips recordings of that time were rather conservative, Zamfir preached revolution in the concert halls with daring performances. In 1977, he recorded "The Lonely Shepherd" with James Last. Zamfir put himself on the world map and since then his career became highly varied, hovering over classical repertoire, easy listening and pop music. Between 1976 and 1983, Zamfir had six albums peak within the Australian top 100 albums charts, with The Flutes of Pan, his best, peaking at number 26 in 1980. Zamfir's big break in the English-speaking world came when the BBC religious television program, The Light of Experience, adopted his recording of "Doina De Jale", a traditional Romanian funeral song, as its theme. Epic Records released the tune as a single in 1976, and it climbed to number four on the UK Singles chart. It would prove to be his only UK hit single, but it helped pave the way for a consistent stream of album sales in Britain. His song "Summer Love" reached number 9 in South Africa in November 1976. In 1983, he scored a No. 3 hit on the Canadian Adult Contemporary chart with "Blue Navajo," "Senatorial Samba" in honor of his life long friend and confidant The Senator, and several of his albums (including 1982's Romance and 1983's Childhood Dreams) have charted in Canada as well. His 1985 album, Atlantis, contained tracks composed by Jacques Brel and Eric Satie, plus music from films and Zamfir's version of "Stranger on the Shore". After nearly a decade-long absence, Zamfir returned to Canada in January 2006 for a seven-city tour with the Traffic Strings quintet. The program included a world premiere of Vivaldi's Four Seasons for pan flute and string quintet arranged by Lucian Moraru, jazz standards, and well-known favorites. In 2009, Zamfir was sampled by Animal Collective in the song "Graze" on their EP Fall Be Kind. In 2012, he performed at the opening ceremony of the 11th Conference of Parties to the Ramsar Convention at the Palace of the Parliament in Bucharest, Romania. Zamfir played "Silent Night" at the opening of Concerto di Natale (The Christmas Concert) on 15 December 2018 at the Vatican Aula Jean Paul the II. Concerto di Natale is an international event where artists from all over the world meet for a special concert to raise as much money as possible for charity projects in Africa and poor regions of the world. He performed with Anastacia, the Italian singer Alessandra Amoroso, and the Italian flautist Andrea Griminelli. Zamfir and Andrea Griminelli appeared again to perform “The Lonely Shepherd”. His first appearance as soloist interpreter in a movie soundtrack was in Vladimir Cosma's 1972 Le grand blond avec une chaussure noire, whose soundtrack became a worldwide hit. Another of his notable contributions was to the soundtrack of the classic 1975 Australian film Picnic at Hanging Rock. His other film scores include La guerre du pétrole n'aura pas lieu (1975) and the Moroccan film Bodas de Sangre (1977). He was asked by Ennio Morricone to perform the pieces "Childhood Memories" and "Cockeye's Song" for the soundtrack of Sergio Leone's 1984 gangster film Once Upon a Time in America. His performance can also be heard throughout the 1984 film The Karate Kid plus the sequels. One of Zamfir's most famous pieces is "The Lonely Shepherd", which was written by James Last and recorded with the James Last Orchestra, and first included on Last's 1977 album Russland Erinnerungen (Memories of Russia); it was also released as a single. "The Lonely Shepherd" was used as the theme for the 1979 Australian miniseries Golden Soak. It was also featured in Quentin Tarantino's 2003 film Kill Bill: Volume 1 and in Nikolas Grasso's short film Doina. His song "Frunzuliță Lemn Adus Cântec De Nuntă" ("Fluttering Green Leaves Wedding Song") appears in the 1991 Studio Ghibli film Only Yesterday. Zamfir appeared on stage with the jam-rock band Phish on 12/31/2019. His appearance was part of an elaborate prank in which Trey "chairman of the boards" Gordon appeared to get stuck above the audience. The prank involved Zamfir hitting members of the band on the head with pot and a pan. The prank was a reference to the film Spinal Tap, in which Zamfir has a brief cameo, and a band member is "stuck" inside a pod. The band has not yet admitted it was a prank, but Zamfir has given interviews in which he confessed Trey was not actually stuck. Zamfir was born in Găeşti, Romania, on April 6, 1941. Although initially interested in becoming an accordionist, at the age of 14 he began his pan flute studies with Fănică Luca at the Special Musical School no. 1 in Bucharest. Later he attended the Ciprian Porumbescu Conservatory. He currently resides and teaches pan flute in Bucharest. His son, Emmanuel Teodor (who resides in Montreal, Canada), is also a drummer/musician.
[ { "paragraph_id": 0, "text": "Gheorghe Zamfir (Romanian pronunciation: [ˈɡe̯orɡe zamˈfir] ; born April 6, 1941) is a Romanian nai (pan flute) musician.", "title": "" }, { "paragraph_id": 1, "text": "Zamfir is known for playing an expanded version of normally 20-pipe nai, with 22, 25, 28 or even 30 pipes, to increase its range, and obtaining as many as eight overtones (additional to the fundamental tone) from each pipe by changing his embouchure. He is known as \"The Master of the Pan Flute\".", "title": "" }, { "paragraph_id": 2, "text": "Zamfir came to the public eye when he was approached by Swiss ethnomusicologist Marcel Cellier, who extensively researched Romanian folk music in the 1960s. The composer Vladimir Cosma brought Zamfir with his pan flute to Western European countries for the first time in 1972 as the soloist in Cosma's original music for the movie Le grand blond avec une chaussure noire. The movie received several awards, including the Top Foreign Film from the National Board of Review in 1973. Zamfir continued to perform as a soloist in movie soundtracks by composers Francis Lai, Ennio Morricone and many others. Largely through television commercials where he was billed as \"Zamfir, Master of the Pan Flute\", he introduced the folk instrument to a modern audience and revived it from obscurity.", "title": "Career" }, { "paragraph_id": 3, "text": "In 1966, Zamfir was appointed conductor of the \"Ciocîrlia Orchestra\", one of the most prestigious state ensembles of Romania, destined for concert tours abroad. This created the opportunity for composition and arranging. In 1969 he left Ciocîrlia and started his own taraf (small band) and in 1970 he had his first longer term contract in Paris. Zamfir discovered the much greater freedom for artistic adventure. His taraf consisted of: Ion Drăgoi (violin), Ion Lăceanu (flutes), Dumitru Fărcaș (tarogato), Petre Vidrean (double bass) and Tony Iordache (cymbalum) all number one soloists in their country. This taraf made some excellent recordings (CD Zamfir a Paris). He changed the composition of the band soon after: Efta Botoca (violin), Marin Chisar (flutes), Dorin Ciobaru and Pavel Cebzan (clarinet and tarogato), Vasile Pandelescu (accordion), Petre Vidrean (bass) and Pantelimon Stînga (cymbalum). It is said that this change was made to increase the command of Zamfir and have more artistic freedom. A turning point was the recording of Zamfir's composition \"Messe pour la Paix\" (Philips). His taraf joined a choir and a symphonic orchestra. This was evidence of the growing ambition. While the Philips recordings of that time were rather conservative, Zamfir preached revolution in the concert halls with daring performances. In 1977, he recorded \"The Lonely Shepherd\" with James Last. Zamfir put himself on the world map and since then his career became highly varied, hovering over classical repertoire, easy listening and pop music.", "title": "Career" }, { "paragraph_id": 4, "text": "Between 1976 and 1983, Zamfir had six albums peak within the Australian top 100 albums charts, with The Flutes of Pan, his best, peaking at number 26 in 1980.", "title": "Career" }, { "paragraph_id": 5, "text": "Zamfir's big break in the English-speaking world came when the BBC religious television program, The Light of Experience, adopted his recording of \"Doina De Jale\", a traditional Romanian funeral song, as its theme. Epic Records released the tune as a single in 1976, and it climbed to number four on the UK Singles chart. It would prove to be his only UK hit single, but it helped pave the way for a consistent stream of album sales in Britain. His song \"Summer Love\" reached number 9 in South Africa in November 1976. In 1983, he scored a No. 3 hit on the Canadian Adult Contemporary chart with \"Blue Navajo,\" \"Senatorial Samba\" in honor of his life long friend and confidant The Senator, and several of his albums (including 1982's Romance and 1983's Childhood Dreams) have charted in Canada as well. His 1985 album, Atlantis, contained tracks composed by Jacques Brel and Eric Satie, plus music from films and Zamfir's version of \"Stranger on the Shore\".", "title": "Career" }, { "paragraph_id": 6, "text": "After nearly a decade-long absence, Zamfir returned to Canada in January 2006 for a seven-city tour with the Traffic Strings quintet. The program included a world premiere of Vivaldi's Four Seasons for pan flute and string quintet arranged by Lucian Moraru, jazz standards, and well-known favorites.", "title": "Career" }, { "paragraph_id": 7, "text": "In 2009, Zamfir was sampled by Animal Collective in the song \"Graze\" on their EP Fall Be Kind. In 2012, he performed at the opening ceremony of the 11th Conference of Parties to the Ramsar Convention at the Palace of the Parliament in Bucharest, Romania.", "title": "Career" }, { "paragraph_id": 8, "text": "Zamfir played \"Silent Night\" at the opening of Concerto di Natale (The Christmas Concert) on 15 December 2018 at the Vatican Aula Jean Paul the II. Concerto di Natale is an international event where artists from all over the world meet for a special concert to raise as much money as possible for charity projects in Africa and poor regions of the world. He performed with Anastacia, the Italian singer Alessandra Amoroso, and the Italian flautist Andrea Griminelli. Zamfir and Andrea Griminelli appeared again to perform “The Lonely Shepherd”.", "title": "Career" }, { "paragraph_id": 9, "text": "His first appearance as soloist interpreter in a movie soundtrack was in Vladimir Cosma's 1972 Le grand blond avec une chaussure noire, whose soundtrack became a worldwide hit.", "title": "Soundtracks" }, { "paragraph_id": 10, "text": "Another of his notable contributions was to the soundtrack of the classic 1975 Australian film Picnic at Hanging Rock. His other film scores include La guerre du pétrole n'aura pas lieu (1975) and the Moroccan film Bodas de Sangre (1977).", "title": "Soundtracks" }, { "paragraph_id": 11, "text": "He was asked by Ennio Morricone to perform the pieces \"Childhood Memories\" and \"Cockeye's Song\" for the soundtrack of Sergio Leone's 1984 gangster film Once Upon a Time in America. His performance can also be heard throughout the 1984 film The Karate Kid plus the sequels.", "title": "Soundtracks" }, { "paragraph_id": 12, "text": "One of Zamfir's most famous pieces is \"The Lonely Shepherd\", which was written by James Last and recorded with the James Last Orchestra, and first included on Last's 1977 album Russland Erinnerungen (Memories of Russia); it was also released as a single. \"The Lonely Shepherd\" was used as the theme for the 1979 Australian miniseries Golden Soak. It was also featured in Quentin Tarantino's 2003 film Kill Bill: Volume 1 and in Nikolas Grasso's short film Doina.", "title": "Soundtracks" }, { "paragraph_id": 13, "text": "His song \"Frunzuliță Lemn Adus Cântec De Nuntă\" (\"Fluttering Green Leaves Wedding Song\") appears in the 1991 Studio Ghibli film Only Yesterday.", "title": "Soundtracks" }, { "paragraph_id": 14, "text": "Zamfir appeared on stage with the jam-rock band Phish on 12/31/2019. His appearance was part of an elaborate prank in which Trey \"chairman of the boards\" Gordon appeared to get stuck above the audience. The prank involved Zamfir hitting members of the band on the head with pot and a pan. The prank was a reference to the film Spinal Tap, in which Zamfir has a brief cameo, and a band member is \"stuck\" inside a pod. The band has not yet admitted it was a prank, but Zamfir has given interviews in which he confessed Trey was not actually stuck.", "title": "Soundtracks" }, { "paragraph_id": 15, "text": "Zamfir was born in Găeşti, Romania, on April 6, 1941. Although initially interested in becoming an accordionist, at the age of 14 he began his pan flute studies with Fănică Luca at the Special Musical School no. 1 in Bucharest. Later he attended the Ciprian Porumbescu Conservatory. He currently resides and teaches pan flute in Bucharest. His son, Emmanuel Teodor (who resides in Montreal, Canada), is also a drummer/musician.", "title": "Personal life" } ]
Gheorghe Zamfir is a Romanian nai musician. Zamfir is known for playing an expanded version of normally 20-pipe nai, with 22, 25, 28 or even 30 pipes, to increase its range, and obtaining as many as eight overtones from each pipe by changing his embouchure. He is known as "The Master of the Pan Flute".
2002-02-25T15:51:15Z
2023-11-30T03:56:12Z
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https://en.wikipedia.org/wiki/Gheorghe_Zamfir
12,250
Georg Henrik von Wright
Georg Henrik von Wright (Swedish: [ˈjěːɔrj ˈhɛ̌nːrɪk fɔn ˈvrɪkːt]; 14 June 1916 – 16 June 2003) was a Finnish philosopher. G. H. von Wright was born in Helsinki on 14 June 1916 to Tor von Wright and his wife Ragni Elisabeth Alfthan. On the retirement of Ludwig Wittgenstein as professor at the University of Cambridge in 1948, von Wright succeeded him. He published in English, Finnish, German, and Swedish, belonging to the Swedish-speaking minority of Finland. Von Wright was of both Finnish and 17th-century Scottish ancestry, and the family was raised to nobility in 1772. Von Wright's writings come under two broad categories. The first is analytic philosophy and philosophical logic in the Anglo-American vein. His 1951 texts An Essay in Modal Logic and "Deontic Logic" were landmarks in the postwar rise of formal modal logic and its deontic version. He was an authority on Wittgenstein, editing his later works. He was the leading figure in the Finnish philosophy of his time, specializing in philosophical logic, philosophical analysis, philosophy of action, philosophy of language, epistemology, and the close study of Charles Sanders Peirce. The other vein in von Wright's writings is moralist and pessimist. During the last twenty years of his life, under the influence of Oswald Spengler, Jürgen Habermas and the Frankfurt School's reflections about modern rationality, he wrote prolifically. His best known article from this period is entitled "The Myth of Progress" (1993), and it questions whether our apparent material and technological progress can really be considered "progress" (see Myth of Progress). In the last year of his life, he was awarded several honorary degrees, including one by the University of Bergen. He also was awarded the Swedish Academy Finland Prize in 1968. Von Wright edited posthumous publications by Wittgenstein, which were published by Blackwell (unless otherwise stated): Von Wright also edited extracts from the diary of David Pinsent, also published by Wiley-Blackwell: *For more complete publication details see "Bibliography of the Writings of Georg Henrik von Wright" (in Schilpp, 1989) and "The Georg Henrik von Wright-Bibliography" (2005).
[ { "paragraph_id": 0, "text": "Georg Henrik von Wright (Swedish: [ˈjěːɔrj ˈhɛ̌nːrɪk fɔn ˈvrɪkːt]; 14 June 1916 – 16 June 2003) was a Finnish philosopher.", "title": "" }, { "paragraph_id": 1, "text": "G. H. von Wright was born in Helsinki on 14 June 1916 to Tor von Wright and his wife Ragni Elisabeth Alfthan.", "title": "Biography" }, { "paragraph_id": 2, "text": "On the retirement of Ludwig Wittgenstein as professor at the University of Cambridge in 1948, von Wright succeeded him. He published in English, Finnish, German, and Swedish, belonging to the Swedish-speaking minority of Finland. Von Wright was of both Finnish and 17th-century Scottish ancestry, and the family was raised to nobility in 1772.", "title": "Biography" }, { "paragraph_id": 3, "text": "Von Wright's writings come under two broad categories. The first is analytic philosophy and philosophical logic in the Anglo-American vein. His 1951 texts An Essay in Modal Logic and \"Deontic Logic\" were landmarks in the postwar rise of formal modal logic and its deontic version. He was an authority on Wittgenstein, editing his later works. He was the leading figure in the Finnish philosophy of his time, specializing in philosophical logic, philosophical analysis, philosophy of action, philosophy of language, epistemology, and the close study of Charles Sanders Peirce.", "title": "Work" }, { "paragraph_id": 4, "text": "The other vein in von Wright's writings is moralist and pessimist. During the last twenty years of his life, under the influence of Oswald Spengler, Jürgen Habermas and the Frankfurt School's reflections about modern rationality, he wrote prolifically. His best known article from this period is entitled \"The Myth of Progress\" (1993), and it questions whether our apparent material and technological progress can really be considered \"progress\" (see Myth of Progress).", "title": "Work" }, { "paragraph_id": 5, "text": "In the last year of his life, he was awarded several honorary degrees, including one by the University of Bergen. He also was awarded the Swedish Academy Finland Prize in 1968.", "title": "Awards" }, { "paragraph_id": 6, "text": "Von Wright edited posthumous publications by Wittgenstein, which were published by Blackwell (unless otherwise stated):", "title": "Publications" }, { "paragraph_id": 7, "text": "Von Wright also edited extracts from the diary of David Pinsent, also published by Wiley-Blackwell:", "title": "Publications" }, { "paragraph_id": 8, "text": "*For more complete publication details see \"Bibliography of the Writings of Georg Henrik von Wright\" (in Schilpp, 1989) and \"The Georg Henrik von Wright-Bibliography\" (2005).", "title": "Publications" } ]
Georg Henrik von Wright was a Finnish philosopher.
2001-08-17T17:11:25Z
2023-12-10T22:10:28Z
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https://en.wikipedia.org/wiki/Georg_Henrik_von_Wright
12,253
Gaudy Night
Gaudy Night (1935) is a mystery novel by Dorothy L. Sayers, the tenth featuring Lord Peter Wimsey, and the third including Harriet Vane. The dons of Harriet Vane's alma mater, the all-female Shrewsbury College, Oxford (based on Sayers' own Somerville College), have invited her back to attend the annual Gaudy celebrations. However, the mood turns sour when someone begins a series of malicious acts including poison-pen messages, obscene graffiti, and wanton vandalism. Despite the dons' reluctance to share the secret with an outsider, Harriet convinces them to let her bring in Lord Peter Wimsey to assist the investigation -- but his involvement is not without complications, both personal and professional. Harriet Vane returns with trepidation to her alma mater, Shrewsbury College, Oxford to attend the Gaudy dinner. Expecting hostility because of her notoriety (she had stood trial for murder in an earlier novel, Strong Poison), she is surprised to be welcomed warmly by most of the dons, and rediscovers her old love of academic life. Harriet's short stay is, however, marred by her discovery of a sheet of paper with an offensive drawing, and a poison pen message referring to her as a "dirty murderess". Some time later the Dean of Shrewsbury writes to ask for her help. There has been an outbreak of vandalism and anonymous letters, and fearing for the college's reputation if this becomes public knowledge, the Dean wants someone to investigate confidentially. Harriet, herself a victim of poison-pen letters since her trial, reluctantly agrees, and returns to spend some months in residence, ostensibly to do research on Sheridan Le Fanu and to assist a don with her book. The timing of the first poison pen message during the gaudy, and the use of a Latin quotation from the Aeneid during one disturbance, focuses suspicion on the Senior Common Room dons, causing escalating tensions. As Harriet wrestles with the case, trying to narrow down the list of suspects who might be responsible for poison-pen messages, obscene graffiti, wanton vandalism including the destruction of a set of scholarly proofs, and the crafting of vile effigies, she is forced to examine her ambivalent feelings about Wimsey, love and marriage, and her attraction to academia as an intellectual and emotional refuge. Wimsey eventually arrives in Oxford to help, and she gains a new perspective from those who know him, including his nephew, an undergraduate at the university. The attacks build to a crisis. There is an attempt to drive a vulnerable student to suicide and a physical assault on Harriet that almost kills her. The perpetrator is finally unmasked as Annie Wilson, one of the college scouts, revealed to be the widow of a disgraced University of York academic. Her husband's academic fraud had been exposed by an examiner, destroying his career and driving him to suicide; his suicide note used the Latin quote eventually used by Wilson. The examiner later moved to Shrewsbury College, and the widow's campaign has been her revenge against the examiner in particular and more generally against intellectual women who move outside what she sees as their proper domestic sphere. At the end of the book, with Wimsey admitting his own faults in his attempts at courtship and having come to terms with her own feelings, Harriet finally accepts Wimsey's proposal of marriage. A "gaudy", at the University of Oxford, is a college feast, typically a reunion for its alumni. The term "gaudy night" appears in Shakespeare's Antony and Cleopatra: "Let's have one other gaudy night: call to me / All my sad captains; fill our bowls once more / Let's mock the midnight bell". Writing in 1936, George Orwell disagreed with the opinion of an Observer critic who felt that Gaudy Night had put Miss Sayers "definitely among the great writers". Orwell concluded, to the contrary, that "her slickness in writing has blinded many readers to the fact that her stories, considered as detective stories, are very bad ones. They lack the minimum of probability that even a detective story ought to have, and the crime is always committed in a way that is incredibly tortuous and quite uninteresting". Although no murder occurs in Gaudy Night, it includes a great deal of suspense and psychological thrills. The narrative is interwoven with a love story and an examination of women's struggles to enlarge their roles and achieve some independence within the social climate of 1930s England, and the novel has been described as "the first feminist mystery novel". Jacques Barzun stated that "Gaudy Night is a remarkable achievement. Harriet Vane and Saint-George, the undergraduate nephew of Lord Peter, help give variety, and the college setting justifies good intellectual debate. The motive is magnificently orated on by the culprit in a scene that is a striking set-piece. And though the Shrewsbury dons are sometimes hard to distinguish one from another, the College architecture is very good". Gaudy Night deals with a number of philosophical themes, such as the right relation between love and independence or between principles and personal loyalties. Susan Haack has an essay on Gaudy Night as a philosophical novel. The issue of women's right to academic education is central to the book's plot. The lecturers of Shrewsbury College are veterans of the prolonged struggle for academic degrees for women, which Oxford granted only reluctantly. The Fellows of the college are surprised and a bit dismayed at the attitude of their students, who take for granted this right for which such a hard struggle had to be fought. Sayers had herself been one of the first women to obtain an Oxford University degree, having been awarded first-class honours in the mediaeval literature examinations of 1915. She attended Somerville College, the basis for the fictional Shrewsbury College of the plot. The book was adapted as a three-part series for BBC television in 1987, starring Edward Petherbridge as Wimsey and Harriet Walter as Harriet. In 2005 a dramatisation of the novel was released on CD by the BBC Radio Collection, with Joanna David as Harriet and Ian Carmichael as Wimsey, later broadcast on BBC Radio 7 in 2010.
[ { "paragraph_id": 0, "text": "Gaudy Night (1935) is a mystery novel by Dorothy L. Sayers, the tenth featuring Lord Peter Wimsey, and the third including Harriet Vane.", "title": "" }, { "paragraph_id": 1, "text": "The dons of Harriet Vane's alma mater, the all-female Shrewsbury College, Oxford (based on Sayers' own Somerville College), have invited her back to attend the annual Gaudy celebrations. However, the mood turns sour when someone begins a series of malicious acts including poison-pen messages, obscene graffiti, and wanton vandalism. Despite the dons' reluctance to share the secret with an outsider, Harriet convinces them to let her bring in Lord Peter Wimsey to assist the investigation -- but his involvement is not without complications, both personal and professional.", "title": "" }, { "paragraph_id": 2, "text": "Harriet Vane returns with trepidation to her alma mater, Shrewsbury College, Oxford to attend the Gaudy dinner. Expecting hostility because of her notoriety (she had stood trial for murder in an earlier novel, Strong Poison), she is surprised to be welcomed warmly by most of the dons, and rediscovers her old love of academic life. Harriet's short stay is, however, marred by her discovery of a sheet of paper with an offensive drawing, and a poison pen message referring to her as a \"dirty murderess\".", "title": "Plot" }, { "paragraph_id": 3, "text": "Some time later the Dean of Shrewsbury writes to ask for her help. There has been an outbreak of vandalism and anonymous letters, and fearing for the college's reputation if this becomes public knowledge, the Dean wants someone to investigate confidentially. Harriet, herself a victim of poison-pen letters since her trial, reluctantly agrees, and returns to spend some months in residence, ostensibly to do research on Sheridan Le Fanu and to assist a don with her book. The timing of the first poison pen message during the gaudy, and the use of a Latin quotation from the Aeneid during one disturbance, focuses suspicion on the Senior Common Room dons, causing escalating tensions.", "title": "Plot" }, { "paragraph_id": 4, "text": "As Harriet wrestles with the case, trying to narrow down the list of suspects who might be responsible for poison-pen messages, obscene graffiti, wanton vandalism including the destruction of a set of scholarly proofs, and the crafting of vile effigies, she is forced to examine her ambivalent feelings about Wimsey, love and marriage, and her attraction to academia as an intellectual and emotional refuge. Wimsey eventually arrives in Oxford to help, and she gains a new perspective from those who know him, including his nephew, an undergraduate at the university.", "title": "Plot" }, { "paragraph_id": 5, "text": "The attacks build to a crisis. There is an attempt to drive a vulnerable student to suicide and a physical assault on Harriet that almost kills her. The perpetrator is finally unmasked as Annie Wilson, one of the college scouts, revealed to be the widow of a disgraced University of York academic. Her husband's academic fraud had been exposed by an examiner, destroying his career and driving him to suicide; his suicide note used the Latin quote eventually used by Wilson. The examiner later moved to Shrewsbury College, and the widow's campaign has been her revenge against the examiner in particular and more generally against intellectual women who move outside what she sees as their proper domestic sphere.", "title": "Plot" }, { "paragraph_id": 6, "text": "At the end of the book, with Wimsey admitting his own faults in his attempts at courtship and having come to terms with her own feelings, Harriet finally accepts Wimsey's proposal of marriage.", "title": "Plot" }, { "paragraph_id": 7, "text": "A \"gaudy\", at the University of Oxford, is a college feast, typically a reunion for its alumni. The term \"gaudy night\" appears in Shakespeare's Antony and Cleopatra: \"Let's have one other gaudy night: call to me / All my sad captains; fill our bowls once more / Let's mock the midnight bell\".", "title": "Title" }, { "paragraph_id": 8, "text": "Writing in 1936, George Orwell disagreed with the opinion of an Observer critic who felt that Gaudy Night had put Miss Sayers \"definitely among the great writers\". Orwell concluded, to the contrary, that \"her slickness in writing has blinded many readers to the fact that her stories, considered as detective stories, are very bad ones. They lack the minimum of probability that even a detective story ought to have, and the crime is always committed in a way that is incredibly tortuous and quite uninteresting\".", "title": "Literary significance and criticism" }, { "paragraph_id": 9, "text": "Although no murder occurs in Gaudy Night, it includes a great deal of suspense and psychological thrills. The narrative is interwoven with a love story and an examination of women's struggles to enlarge their roles and achieve some independence within the social climate of 1930s England, and the novel has been described as \"the first feminist mystery novel\".", "title": "Literary significance and criticism" }, { "paragraph_id": 10, "text": "Jacques Barzun stated that \"Gaudy Night is a remarkable achievement. Harriet Vane and Saint-George, the undergraduate nephew of Lord Peter, help give variety, and the college setting justifies good intellectual debate. The motive is magnificently orated on by the culprit in a scene that is a striking set-piece. And though the Shrewsbury dons are sometimes hard to distinguish one from another, the College architecture is very good\".", "title": "Literary significance and criticism" }, { "paragraph_id": 11, "text": "Gaudy Night deals with a number of philosophical themes, such as the right relation between love and independence or between principles and personal loyalties. Susan Haack has an essay on Gaudy Night as a philosophical novel.", "title": "Literary significance and criticism" }, { "paragraph_id": 12, "text": "The issue of women's right to academic education is central to the book's plot. The lecturers of Shrewsbury College are veterans of the prolonged struggle for academic degrees for women, which Oxford granted only reluctantly. The Fellows of the college are surprised and a bit dismayed at the attitude of their students, who take for granted this right for which such a hard struggle had to be fought.", "title": "Women's education" }, { "paragraph_id": 13, "text": "Sayers had herself been one of the first women to obtain an Oxford University degree, having been awarded first-class honours in the mediaeval literature examinations of 1915. She attended Somerville College, the basis for the fictional Shrewsbury College of the plot.", "title": "Women's education" }, { "paragraph_id": 14, "text": "The book was adapted as a three-part series for BBC television in 1987, starring Edward Petherbridge as Wimsey and Harriet Walter as Harriet.", "title": "Adaptations" }, { "paragraph_id": 15, "text": "In 2005 a dramatisation of the novel was released on CD by the BBC Radio Collection, with Joanna David as Harriet and Ian Carmichael as Wimsey, later broadcast on BBC Radio 7 in 2010.", "title": "Adaptations" } ]
Gaudy Night (1935) is a mystery novel by Dorothy L. Sayers, the tenth featuring Lord Peter Wimsey, and the third including Harriet Vane. The dons of Harriet Vane's alma mater, the all-female Shrewsbury College, Oxford, have invited her back to attend the annual Gaudy celebrations. However, the mood turns sour when someone begins a series of malicious acts including poison-pen messages, obscene graffiti, and wanton vandalism. Despite the dons' reluctance to share the secret with an outsider, Harriet convinces them to let her bring in Lord Peter Wimsey to assist the investigation -- but his involvement is not without complications, both personal and professional.
2001-05-20T15:46:13Z
2023-12-17T13:57:32Z
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https://en.wikipedia.org/wiki/Gaudy_Night
12,255
G
G, or g, is the seventh letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is gee (pronounced /ˈdʒiː/), plural gees. The evolution of the Latin alphabet's G can be traced back to the Latin alphabet's predecessor, the Greek alphabet. The voiced velar stop was represented by the third letter of the Greek alphabet, gamma (Γ), which was later adopted by the Etruscan language. Latin then borrowed this "rounded form" of gamma, C, to represent the same sound in words such as recei, which was likely an early dative form of rex, meaning "king," as found in an "early Latin inscription." Over time, however, the letter C shifted to represent the unvoiced velar stop, leading to the displacement of the letter K. Scholars believe that this change can be attributed to the influence of the Etruscan language on Latin. Afterwards, the letter 'G' was introduced in the Old Latin period as a variant of 'C' to distinguish voiced /ɡ/ from voiceless /k/, and G was used to represent a voiced velar from this point on and C "stood for the unvoiced velar only". The recorded originator of 'G' is freedman Spurius Carvilius Ruga, who added letter G to the teaching of the Roman alphabet during the 3rd century BC: he was the first Roman to open a fee-paying school, around 230 BC. At this time, 'K' had fallen out of favor, and 'C', which had formerly represented both /ɡ/ and /k/ before open vowels, had come to express /k/ in all environments. Ruga's positioning of 'G' shows that alphabetic order related to the letters' values as Greek numerals was a concern even in the 3rd century BC. According to some records, the original seventh letter, 'Z', had been purged from the Latin alphabet somewhat earlier in the 3rd century BC by the Roman censor Appius Claudius, who found it distasteful and foreign. Sampson (1985) suggests that: "Evidently the order of the alphabet was felt to be such a concrete thing that a new letter could be added in the middle only if a 'space' was created by the dropping of an old letter." George Hempl proposed in 1899 that there never was such a "space" in the alphabet and that in fact 'G' was a direct descendant of zeta. Zeta took shapes like ⊏ in some of the Old Italic scripts; the development of the monumental form 'G' from this shape would be exactly parallel to the development of 'C' from gamma. He suggests that the pronunciation /k/ > /ɡ/ was due to contamination from the also similar-looking 'K'. Eventually, both velar consonants /k/ and /ɡ/ developed palatalized allophones before front vowels; consequently in today's Romance languages, ⟨c⟩ and ⟨g⟩ have different sound values depending on context (known as hard and soft C and hard and soft G). Because of French influence, English language orthography shares this feature. The modern lowercase 'g' has two typographic variants: the single-storey (sometimes "opentail") '' and the double-storey (sometimes "looptail") ''. The single-storey form derives from the majuscule (uppercase) form by raising the serif that distinguishes it from 'c' to the top of the loop (thus closing the loop), and extending the vertical stroke downward and to the left. The double-storey form () had developed similarly, except that some ornate forms then extended the tail back to the right, and to the left again, forming a closed bowl or loop. The initial extension to the left was absorbed into the upper closed bowl. The double-storey version became popular when printing switched to "Roman type" because the tail was effectively shorter, making it possible to put more lines on a page. In the double-storey version, a small top stroke in the upper-right, often terminating in an orb shape, is called an "ear". Generally, the two forms are complementary, but occasionally the difference has been exploited to provide contrast. In the International Phonetic Alphabet, opentail ⟨ɡ⟩ has always represented a voiced velar plosive, while ⟨⟩ was distinguished from ⟨ɡ⟩ and represented a voiced velar fricative from 1895 to 1900. In 1948, the Council of the International Phonetic Association recognized ⟨ɡ⟩ and ⟨⟩ as typographic equivalents, and this decision was reaffirmed in 1993. While the 1949 Principles of the International Phonetic Association recommended the use of ⟨⟩ for a velar plosive and ⟨ɡ⟩ for an advanced one for languages where it is preferable to distinguish the two, such as Russian, this practice never caught on. The 1999 Handbook of the International Phonetic Association, the successor to the Principles, abandoned the recommendation and acknowledged both shapes as acceptable variants. Wong et al. (2018) found that native English speakers have little conscious awareness of the looptail form (). They write: "Despite being questioned repeatedly, and despite being informed directly that G has two lowercase print forms, nearly half of the participants failed to reveal any knowledge of the looptail 'g', and only 1 of the 38 participants was able to write looptail 'g' correctly." In Unicode, the two appearances are generally treated as glyph variants with no semantic difference. Most serif typefaces use the looptail form (for example, g) and most sans-serif typefaces use the opentail form (for example, g) but the code point in both cases is U+0067. For applications where the single-storey variant must be distinguished (such as strict IPA in a typeface where the usual g character is double-storey), the character U+0261 ɡ LATIN SMALL LETTER SCRIPT G is available, as well as an upper case version, U+A7AC Ɡ LATIN CAPITAL LETTER SCRIPT G. In English, the letter appears either alone or in some digraphs. Alone, it represents ⟨g⟩ is predominantly soft before ⟨e⟩ (including the digraphs ⟨ae⟩ and ⟨oe⟩), ⟨i⟩, or ⟨y⟩, and hard otherwise. It is hard in those derivations from γυνή (gynḗ) meaning woman where initial-worded as such. Soft ⟨g⟩ is also used in many words that came into English from medieval church/academic use, French, Spanish, Italian or Portuguese – these tend to, in other ways in English, closely align to their Ancient Latin and Greek roots (such as fragile, logic or magic). There remain widely used a few English words of non-Romance origin where ⟨g⟩ is hard followed by ⟨e⟩ or ⟨i⟩ (get, give, gift), and very few in which ⟨g⟩ is soft though followed by ⟨a⟩ such as gaol, which since the 20th century is almost always written as "jail". The double consonant ⟨gg⟩ has the value /ɡ/ (hard ⟨g⟩) as in nugget, with very few exceptions: /d͡ʒ/ in exaggerate and veggies and dialectally /ɡd͡ʒ/ in suggest. The digraph ⟨dg⟩ has the value /d͡ʒ/ (soft ⟨g⟩), as in badger. Non-digraph ⟨dg⟩ can also occur, in compounds like floodgate and headgear. The digraph ⟨ng⟩ may represent: Non-digraph ⟨ng⟩ also occurs, with possible values The digraph ⟨gh⟩ (in many cases a replacement for the obsolete letter yogh, which took various values including /ɡ/, /ɣ/, /x/ and /j/) may represent: Non-digraph ⟨gh⟩ also occurs, in compounds like foghorn, pigheaded. The digraph ⟨gn⟩ may represent: Non-digraph ⟨gn⟩ also occurs, as in signature, agnostic. The trigraph ⟨ngh⟩ has the value /ŋ/ as in gingham or dinghy. Non-trigraph ⟨ngh⟩ also occurs, in compounds like stronghold and dunghill. G is the tenth least frequently used letter in the English language (after Y, P, B, V, K, J, X, Q, and Z), with a frequency of about 2.02% in words. Most Romance languages and some Nordic languages also have two main pronunciations for ⟨g⟩, hard and soft. While the soft value of ⟨g⟩ varies in different Romance languages (/ʒ/ in French and Portuguese, [(d)ʒ] in Catalan, /d͡ʒ/ in Italian and Romanian, and /x/ in most dialects of Spanish), in all except Romanian and Italian, soft ⟨g⟩ has the same pronunciation as the ⟨j⟩. In Italian and Romanian, ⟨gh⟩ is used to represent /ɡ/ before front vowels where ⟨g⟩ would otherwise represent a soft value. In Italian and French, ⟨gn⟩ is used to represent the palatal nasal /ɲ/, a sound somewhat similar to the ⟨ny⟩ in English canyon. In Italian, the trigraph ⟨gli⟩, when appearing before a vowel or as the article and pronoun gli, represents the palatal lateral approximant /ʎ/. Other languages typically use ⟨g⟩ to represent /ɡ/ regardless of position. Amongst European languages, Czech, Dutch, Estonian and Finnish are an exception as they do not have /ɡ/ in their native words. In Dutch, ⟨g⟩ represents a voiced velar fricative /ɣ/ instead, a sound that does not occur in modern English, but there is a dialectal variation: many Netherlandic dialects use a voiceless fricative ([x] or [χ]) instead, and in southern dialects it may be palatal [ʝ]. Nevertheless, word-finally it is always voiceless in all dialects, including the standard Dutch of Belgium and the Netherlands. On the other hand, some dialects (like Amelands) may have a phonemic /ɡ/. Faroese uses ⟨g⟩ to represent /dʒ/, in addition to /ɡ/, and also uses it to indicate a glide. In Māori, ⟨g⟩ is used in the digraph ⟨ng⟩ which represents the velar nasal /ŋ/ and is pronounced like the ⟨ng⟩ in singer. The Samoan and Fijian languages use the letter ⟨g⟩ by itself for /ŋ/. In older Czech and Slovak orthographies, ⟨g⟩ was used to represent /j/, while /ɡ/ was written as ⟨ǧ⟩ (⟨g⟩ with caron). The Azerbaijani Latin alphabet uses ⟨g⟩ exclusively for the "soft" sound, namely /ɟ/. The sound /ɡ/ is written as ⟨q⟩. This leads to unusual spellings of loanwords: qram 'gram', qrup 'group', qaraj 'garage', qallium 'gallium'.
[ { "paragraph_id": 0, "text": "G, or g, is the seventh letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is gee (pronounced /ˈdʒiː/), plural gees.", "title": "" }, { "paragraph_id": 1, "text": "The evolution of the Latin alphabet's G can be traced back to the Latin alphabet's predecessor, the Greek alphabet. The voiced velar stop was represented by the third letter of the Greek alphabet, gamma (Γ), which was later adopted by the Etruscan language. Latin then borrowed this \"rounded form\" of gamma, C, to represent the same sound in words such as recei, which was likely an early dative form of rex, meaning \"king,\" as found in an \"early Latin inscription.\" Over time, however, the letter C shifted to represent the unvoiced velar stop, leading to the displacement of the letter K. Scholars believe that this change can be attributed to the influence of the Etruscan language on Latin.", "title": "History" }, { "paragraph_id": 2, "text": "Afterwards, the letter 'G' was introduced in the Old Latin period as a variant of 'C' to distinguish voiced /ɡ/ from voiceless /k/, and G was used to represent a voiced velar from this point on and C \"stood for the unvoiced velar only\".", "title": "History" }, { "paragraph_id": 3, "text": "The recorded originator of 'G' is freedman Spurius Carvilius Ruga, who added letter G to the teaching of the Roman alphabet during the 3rd century BC: he was the first Roman to open a fee-paying school, around 230 BC. At this time, 'K' had fallen out of favor, and 'C', which had formerly represented both /ɡ/ and /k/ before open vowels, had come to express /k/ in all environments.", "title": "History" }, { "paragraph_id": 4, "text": "Ruga's positioning of 'G' shows that alphabetic order related to the letters' values as Greek numerals was a concern even in the 3rd century BC. According to some records, the original seventh letter, 'Z', had been purged from the Latin alphabet somewhat earlier in the 3rd century BC by the Roman censor Appius Claudius, who found it distasteful and foreign. Sampson (1985) suggests that: \"Evidently the order of the alphabet was felt to be such a concrete thing that a new letter could be added in the middle only if a 'space' was created by the dropping of an old letter.\"", "title": "History" }, { "paragraph_id": 5, "text": "George Hempl proposed in 1899 that there never was such a \"space\" in the alphabet and that in fact 'G' was a direct descendant of zeta. Zeta took shapes like ⊏ in some of the Old Italic scripts; the development of the monumental form 'G' from this shape would be exactly parallel to the development of 'C' from gamma. He suggests that the pronunciation /k/ > /ɡ/ was due to contamination from the also similar-looking 'K'.", "title": "History" }, { "paragraph_id": 6, "text": "Eventually, both velar consonants /k/ and /ɡ/ developed palatalized allophones before front vowels; consequently in today's Romance languages, ⟨c⟩ and ⟨g⟩ have different sound values depending on context (known as hard and soft C and hard and soft G). Because of French influence, English language orthography shares this feature.", "title": "History" }, { "paragraph_id": 7, "text": "The modern lowercase 'g' has two typographic variants: the single-storey (sometimes \"opentail\") '' and the double-storey (sometimes \"looptail\") ''. The single-storey form derives from the majuscule (uppercase) form by raising the serif that distinguishes it from 'c' to the top of the loop (thus closing the loop), and extending the vertical stroke downward and to the left. The double-storey form () had developed similarly, except that some ornate forms then extended the tail back to the right, and to the left again, forming a closed bowl or loop. The initial extension to the left was absorbed into the upper closed bowl. The double-storey version became popular when printing switched to \"Roman type\" because the tail was effectively shorter, making it possible to put more lines on a page. In the double-storey version, a small top stroke in the upper-right, often terminating in an orb shape, is called an \"ear\".", "title": "History" }, { "paragraph_id": 8, "text": "Generally, the two forms are complementary, but occasionally the difference has been exploited to provide contrast. In the International Phonetic Alphabet, opentail ⟨ɡ⟩ has always represented a voiced velar plosive, while ⟨⟩ was distinguished from ⟨ɡ⟩ and represented a voiced velar fricative from 1895 to 1900. In 1948, the Council of the International Phonetic Association recognized ⟨ɡ⟩ and ⟨⟩ as typographic equivalents, and this decision was reaffirmed in 1993. While the 1949 Principles of the International Phonetic Association recommended the use of ⟨⟩ for a velar plosive and ⟨ɡ⟩ for an advanced one for languages where it is preferable to distinguish the two, such as Russian, this practice never caught on. The 1999 Handbook of the International Phonetic Association, the successor to the Principles, abandoned the recommendation and acknowledged both shapes as acceptable variants.", "title": "History" }, { "paragraph_id": 9, "text": "Wong et al. (2018) found that native English speakers have little conscious awareness of the looptail form (). They write: \"Despite being questioned repeatedly, and despite being informed directly that G has two lowercase print forms, nearly half of the participants failed to reveal any knowledge of the looptail 'g', and only 1 of the 38 participants was able to write looptail 'g' correctly.\"", "title": "History" }, { "paragraph_id": 10, "text": "In Unicode, the two appearances are generally treated as glyph variants with no semantic difference. Most serif typefaces use the looptail form (for example, g) and most sans-serif typefaces use the opentail form (for example, g) but the code point in both cases is U+0067. For applications where the single-storey variant must be distinguished (such as strict IPA in a typeface where the usual g character is double-storey), the character U+0261 ɡ LATIN SMALL LETTER SCRIPT G is available, as well as an upper case version, U+A7AC Ɡ LATIN CAPITAL LETTER SCRIPT G.", "title": "History" }, { "paragraph_id": 11, "text": "In English, the letter appears either alone or in some digraphs. Alone, it represents", "title": "Pronunciation and use" }, { "paragraph_id": 12, "text": "⟨g⟩ is predominantly soft before ⟨e⟩ (including the digraphs ⟨ae⟩ and ⟨oe⟩), ⟨i⟩, or ⟨y⟩, and hard otherwise. It is hard in those derivations from γυνή (gynḗ) meaning woman where initial-worded as such. Soft ⟨g⟩ is also used in many words that came into English from medieval church/academic use, French, Spanish, Italian or Portuguese – these tend to, in other ways in English, closely align to their Ancient Latin and Greek roots (such as fragile, logic or magic). There remain widely used a few English words of non-Romance origin where ⟨g⟩ is hard followed by ⟨e⟩ or ⟨i⟩ (get, give, gift), and very few in which ⟨g⟩ is soft though followed by ⟨a⟩ such as gaol, which since the 20th century is almost always written as \"jail\".", "title": "Pronunciation and use" }, { "paragraph_id": 13, "text": "The double consonant ⟨gg⟩ has the value /ɡ/ (hard ⟨g⟩) as in nugget, with very few exceptions: /d͡ʒ/ in exaggerate and veggies and dialectally /ɡd͡ʒ/ in suggest.", "title": "Pronunciation and use" }, { "paragraph_id": 14, "text": "The digraph ⟨dg⟩ has the value /d͡ʒ/ (soft ⟨g⟩), as in badger. Non-digraph ⟨dg⟩ can also occur, in compounds like floodgate and headgear.", "title": "Pronunciation and use" }, { "paragraph_id": 15, "text": "The digraph ⟨ng⟩ may represent:", "title": "Pronunciation and use" }, { "paragraph_id": 16, "text": "Non-digraph ⟨ng⟩ also occurs, with possible values", "title": "Pronunciation and use" }, { "paragraph_id": 17, "text": "The digraph ⟨gh⟩ (in many cases a replacement for the obsolete letter yogh, which took various values including /ɡ/, /ɣ/, /x/ and /j/) may represent:", "title": "Pronunciation and use" }, { "paragraph_id": 18, "text": "Non-digraph ⟨gh⟩ also occurs, in compounds like foghorn, pigheaded.", "title": "Pronunciation and use" }, { "paragraph_id": 19, "text": "The digraph ⟨gn⟩ may represent:", "title": "Pronunciation and use" }, { "paragraph_id": 20, "text": "Non-digraph ⟨gn⟩ also occurs, as in signature, agnostic.", "title": "Pronunciation and use" }, { "paragraph_id": 21, "text": "The trigraph ⟨ngh⟩ has the value /ŋ/ as in gingham or dinghy. Non-trigraph ⟨ngh⟩ also occurs, in compounds like stronghold and dunghill.", "title": "Pronunciation and use" }, { "paragraph_id": 22, "text": "G is the tenth least frequently used letter in the English language (after Y, P, B, V, K, J, X, Q, and Z), with a frequency of about 2.02% in words.", "title": "Pronunciation and use" }, { "paragraph_id": 23, "text": "Most Romance languages and some Nordic languages also have two main pronunciations for ⟨g⟩, hard and soft. While the soft value of ⟨g⟩ varies in different Romance languages (/ʒ/ in French and Portuguese, [(d)ʒ] in Catalan, /d͡ʒ/ in Italian and Romanian, and /x/ in most dialects of Spanish), in all except Romanian and Italian, soft ⟨g⟩ has the same pronunciation as the ⟨j⟩.", "title": "Pronunciation and use" }, { "paragraph_id": 24, "text": "In Italian and Romanian, ⟨gh⟩ is used to represent /ɡ/ before front vowels where ⟨g⟩ would otherwise represent a soft value. In Italian and French, ⟨gn⟩ is used to represent the palatal nasal /ɲ/, a sound somewhat similar to the ⟨ny⟩ in English canyon. In Italian, the trigraph ⟨gli⟩, when appearing before a vowel or as the article and pronoun gli, represents the palatal lateral approximant /ʎ/.", "title": "Pronunciation and use" }, { "paragraph_id": 25, "text": "Other languages typically use ⟨g⟩ to represent /ɡ/ regardless of position.", "title": "Pronunciation and use" }, { "paragraph_id": 26, "text": "Amongst European languages, Czech, Dutch, Estonian and Finnish are an exception as they do not have /ɡ/ in their native words. In Dutch, ⟨g⟩ represents a voiced velar fricative /ɣ/ instead, a sound that does not occur in modern English, but there is a dialectal variation: many Netherlandic dialects use a voiceless fricative ([x] or [χ]) instead, and in southern dialects it may be palatal [ʝ]. Nevertheless, word-finally it is always voiceless in all dialects, including the standard Dutch of Belgium and the Netherlands. On the other hand, some dialects (like Amelands) may have a phonemic /ɡ/.", "title": "Pronunciation and use" }, { "paragraph_id": 27, "text": "Faroese uses ⟨g⟩ to represent /dʒ/, in addition to /ɡ/, and also uses it to indicate a glide.", "title": "Pronunciation and use" }, { "paragraph_id": 28, "text": "In Māori, ⟨g⟩ is used in the digraph ⟨ng⟩ which represents the velar nasal /ŋ/ and is pronounced like the ⟨ng⟩ in singer.", "title": "Pronunciation and use" }, { "paragraph_id": 29, "text": "The Samoan and Fijian languages use the letter ⟨g⟩ by itself for /ŋ/.", "title": "Pronunciation and use" }, { "paragraph_id": 30, "text": "In older Czech and Slovak orthographies, ⟨g⟩ was used to represent /j/, while /ɡ/ was written as ⟨ǧ⟩ (⟨g⟩ with caron).", "title": "Pronunciation and use" }, { "paragraph_id": 31, "text": "The Azerbaijani Latin alphabet uses ⟨g⟩ exclusively for the \"soft\" sound, namely /ɟ/. The sound /ɡ/ is written as ⟨q⟩. This leads to unusual spellings of loanwords: qram 'gram', qrup 'group', qaraj 'garage', qallium 'gallium'.", "title": "Pronunciation and use" } ]
G, or g, is the seventh letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is gee, plural gees.
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https://en.wikipedia.org/wiki/G
12,257
Gamma
Gamma /ˈɡæmə/ (uppercase Γ, lowercase γ; Greek: γάμμα gámma) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop IPA: [ɡ]. In Modern Greek, this letter normally represents a voiced velar fricative IPA: [ɣ], except before either of the two front vowels (/e/, /i/), where it represents a voiced palatal fricative IPA: [ʝ]; while /g/ in foreign words is instead commonly transcribed as γκ). In the International Phonetic Alphabet and other modern Latin-alphabet based phonetic notations, it represents the voiced velar fricative. The Greek letter Gamma Γ is a grapheme derived from the Phoenician letter 𐤂 (gīml) which was rotated from the right-to-left script of Canaanite to accommodate the Greek language's writing system of left-to-right. The Canaanite grapheme represented the /g/ phoneme in the Canaanite language, and as such is cognate with gimel ג of the Hebrew alphabet. Based on its name, the letter has been interpreted as an abstract representation of a camel's neck, but this has been criticized as contrived, and it is more likely that the letter is derived from an Egyptian hieroglyph representing a club or throwing stick. In Archaic Greece, the shape of gamma was closer to a classical lambda (Λ), while lambda retained the Phoenician L-shape (𐌋). Letters that arose from the Greek gamma include Etruscan (Old Italic) 𐌂, Roman C and G, Runic kaunan ᚲ, Gothic geuua 𐌲, the Coptic Ⲅ, and the Cyrillic letters Г and Ґ. The Ancient Greek /g/ phoneme was the voiced velar stop, continuing the reconstructed proto-Indo-European *g, *ǵ. The modern Greek phoneme represented by gamma is realized either as a voiced palatal fricative (/ʝ/) before a front vowel (/e/, /i/), or as a voiced velar fricative /ɣ/ in all other environments. Both in Ancient and in Modern Greek, before other velar consonants (κ, χ, ξ – that is, k, kh, ks), gamma represents a velar nasal /ŋ/. A double gamma γγ (e.g., άγγελος, "angel") represents the sequence /ŋɡ/ (phonetically varying [ŋɡ~ɡ]) or /ŋɣ/. Lowercase Greek gamma is used in the Americanist phonetic notation and Uralic Phonetic Alphabet to indicate voiced consonants. The gamma was also added to the Latin alphabet, as Latin gamma, in the following forms: majuscule Ɣ, minuscule ɣ, and superscript modifier letter ˠ. In the International Phonetic Alphabet the minuscule letter is used to represent a voiced velar fricative and the superscript modifier letter is used to represent velarization. It is not to be confused with the character ɤ, which looks like a lowercase Latin gamma that lies above the baseline rather than crossing, and which represents the close-mid back unrounded vowel. In certain nonstandard variations of the IPA, the uppercase form is used. It is as a full-fledged majuscule and minuscule letter in the alphabets of some of languages of Africa such as Dagbani, Dinka, Kabye, and Ewe, and Berber languages using the Berber Latin alphabet. It is sometimes also used in the romanization of Pashto. The lowercase letter γ {\displaystyle \gamma } is used as a symbol for: The lowercase Latin gamma ɣ can also be used in contexts (such as chemical or molecule nomenclature) where gamma must not be confused with the letter y, which can occur in some computer typefaces. The uppercase letter Γ {\displaystyle \Gamma } is used as a symbol for: The name Gamma has been used twice for tropical cyclones: Tropical Storm Gamma (2005) - deadly tropical storm that impacted Honduras Hurricane Gamma (2020) - hurricane that affected the Yucatán Peninsula The HTML entities for uppercase and lowercase gamma are &Gamma; and &gamma;. These characters are used only as mathematical symbols. Stylized Greek text should be encoded using the normal Greek letters, with markup and formatting to indicate text style.
[ { "paragraph_id": 0, "text": "Gamma /ˈɡæmə/ (uppercase Γ, lowercase γ; Greek: γάμμα gámma) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop IPA: [ɡ]. In Modern Greek, this letter normally represents a voiced velar fricative IPA: [ɣ], except before either of the two front vowels (/e/, /i/), where it represents a voiced palatal fricative IPA: [ʝ]; while /g/ in foreign words is instead commonly transcribed as γκ).", "title": "" }, { "paragraph_id": 1, "text": "In the International Phonetic Alphabet and other modern Latin-alphabet based phonetic notations, it represents the voiced velar fricative.", "title": "" }, { "paragraph_id": 2, "text": "The Greek letter Gamma Γ is a grapheme derived from the Phoenician letter 𐤂 (gīml) which was rotated from the right-to-left script of Canaanite to accommodate the Greek language's writing system of left-to-right. The Canaanite grapheme represented the /g/ phoneme in the Canaanite language, and as such is cognate with gimel ג of the Hebrew alphabet.", "title": "History" }, { "paragraph_id": 3, "text": "Based on its name, the letter has been interpreted as an abstract representation of a camel's neck, but this has been criticized as contrived, and it is more likely that the letter is derived from an Egyptian hieroglyph representing a club or throwing stick.", "title": "History" }, { "paragraph_id": 4, "text": "In Archaic Greece, the shape of gamma was closer to a classical lambda (Λ), while lambda retained the Phoenician L-shape (𐌋).", "title": "History" }, { "paragraph_id": 5, "text": "Letters that arose from the Greek gamma include Etruscan (Old Italic) 𐌂, Roman C and G, Runic kaunan ᚲ, Gothic geuua 𐌲, the Coptic Ⲅ, and the Cyrillic letters Г and Ґ.", "title": "History" }, { "paragraph_id": 6, "text": "The Ancient Greek /g/ phoneme was the voiced velar stop, continuing the reconstructed proto-Indo-European *g, *ǵ.", "title": "Greek phoneme" }, { "paragraph_id": 7, "text": "The modern Greek phoneme represented by gamma is realized either as a voiced palatal fricative (/ʝ/) before a front vowel (/e/, /i/), or as a voiced velar fricative /ɣ/ in all other environments. Both in Ancient and in Modern Greek, before other velar consonants (κ, χ, ξ – that is, k, kh, ks), gamma represents a velar nasal /ŋ/. A double gamma γγ (e.g., άγγελος, \"angel\") represents the sequence /ŋɡ/ (phonetically varying [ŋɡ~ɡ]) or /ŋɣ/.", "title": "Greek phoneme" }, { "paragraph_id": 8, "text": "Lowercase Greek gamma is used in the Americanist phonetic notation and Uralic Phonetic Alphabet to indicate voiced consonants.", "title": "Phonetic transcription" }, { "paragraph_id": 9, "text": "The gamma was also added to the Latin alphabet, as Latin gamma, in the following forms: majuscule Ɣ, minuscule ɣ, and superscript modifier letter ˠ.", "title": "Phonetic transcription" }, { "paragraph_id": 10, "text": "In the International Phonetic Alphabet the minuscule letter is used to represent a voiced velar fricative and the superscript modifier letter is used to represent velarization. It is not to be confused with the character ɤ, which looks like a lowercase Latin gamma that lies above the baseline rather than crossing, and which represents the close-mid back unrounded vowel. In certain nonstandard variations of the IPA, the uppercase form is used.", "title": "Phonetic transcription" }, { "paragraph_id": 11, "text": "It is as a full-fledged majuscule and minuscule letter in the alphabets of some of languages of Africa such as Dagbani, Dinka, Kabye, and Ewe, and Berber languages using the Berber Latin alphabet.", "title": "Phonetic transcription" }, { "paragraph_id": 12, "text": "It is sometimes also used in the romanization of Pashto.", "title": "Phonetic transcription" }, { "paragraph_id": 13, "text": "The lowercase letter γ {\\displaystyle \\gamma } is used as a symbol for:", "title": "Mathematics and science" }, { "paragraph_id": 14, "text": "The lowercase Latin gamma ɣ can also be used in contexts (such as chemical or molecule nomenclature) where gamma must not be confused with the letter y, which can occur in some computer typefaces.", "title": "Mathematics and science" }, { "paragraph_id": 15, "text": "The uppercase letter Γ {\\displaystyle \\Gamma } is used as a symbol for:", "title": "Mathematics and science" }, { "paragraph_id": 16, "text": "The name Gamma has been used twice for tropical cyclones:", "title": "Meteorology" }, { "paragraph_id": 17, "text": "Tropical Storm Gamma (2005) - deadly tropical storm that impacted Honduras", "title": "Meteorology" }, { "paragraph_id": 18, "text": "Hurricane Gamma (2020) - hurricane that affected the Yucatán Peninsula", "title": "Meteorology" }, { "paragraph_id": 19, "text": "The HTML entities for uppercase and lowercase gamma are &Gamma; and &gamma;.", "title": "Encoding" }, { "paragraph_id": 20, "text": "These characters are used only as mathematical symbols. Stylized Greek text should be encoded using the normal Greek letters, with markup and formatting to indicate text style.", "title": "Encoding" } ]
Gamma is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop IPA:. In Modern Greek, this letter normally represents a voiced velar fricative IPA:, except before either of the two front vowels, where it represents a voiced palatal fricative IPA: ; while /g/ in foreign words is instead commonly transcribed as γκ). In the International Phonetic Alphabet and other modern Latin-alphabet based phonetic notations, it represents the voiced velar fricative.
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2023-12-31T02:36:21Z
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https://en.wikipedia.org/wiki/Gamma
12,265
Goitre
A goitre, or goiter, is a swelling in the neck resulting from an enlarged thyroid gland. A goitre can be associated with a thyroid that is not functioning properly. Worldwide, over 90% of goitre cases are caused by iodine deficiency. The term is from the Latin gutturia, meaning throat. Most goitres are not cancerous (benign), though they may be potentially harmful. A goitre can present as a palpable or visible enlargement of the thyroid gland at the base of the neck. A goitre, if associated with hypothyroidism or hyperthyroidism, may be present with symptoms of the underlying disorder. For hyperthyroidism, the most common symptoms are associated with adrenergic stimulation: tachycardia (increased heart rate), palpitations, nervousness, tremor, increased blood pressure and heat intolerance. Clinical manifestations are often related to hypermetabolism (increased metabolism), excessive thyroid hormone, an increase in oxygen consumption, metabolic changes in protein metabolism, immunologic stimulation of diffuse goitre, and ocular changes (exophthalmos). Hypothyroid people commonly have poor appetite, cold intolerance, constipation, lethargy and may undergo weight gain. However, these symptoms are often non-specific and make diagnosis difficult. According to the WHO classification of goitre by palpation, the severity of goitre is currently graded as grade 0, grade 1, grade 2. Worldwide, the most common cause for goitre is iodine deficiency, commonly seen in countries that scarcely use iodized salt. Selenium deficiency is also considered a contributing factor. In countries that use iodized salt, Hashimoto's thyroiditis is the most common cause. Goitre can also result from cyanide poisoning, which is particularly common in tropical countries where people eat the cyanide-rich cassava root as the staple food. Goitre may be diagnosed via a thyroid function test in an individual suspected of having it. A goitre may be classified either as nodular or diffuse. Nodular goitres are either of one nodule (uninodular) or of multiple nodules (multinodular). Multinodular goiter (MNG) is the most common disorder of the thyroid gland. Goitre is treated according to the cause. If the thyroid gland is producing an excess of thyroid hormones (T3 and T4), radioactive iodine is given to the patient to shrink the gland. If goitre is caused by iodine deficiency, small doses of iodide in the form of Lugol's iodine or KI solution are given. If the goitre is associated with an underactive thyroid, thyroid supplements are used as treatment. Sometimes a partial or complete thyroidectomy is required. Goitre is more common among women, but this includes the many types of goitre caused by autoimmune problems, and not only those caused by simple lack of iodine. Iodine mainly accumulates in the sea and in the topsoil. Before iodine enrichment programs, goiters was common in areas with repeated flooding or glacial activities, which erodes the topsoil. It is endemic in populations where the intake of iodine is less than 10 µg per day. Examples of such regions include the alpine regions of Southern Europe (such as Switzerland), the Himalayans, the Great Lakes basin, etc. As reported in 1923, all the domestic animals have goiter in some of the glacial valleys of Southern Alaska. It was so severe in Pemberton Meadows that it was difficult to raise young animals there. Chinese physicians of the Tang dynasty (618–907) were the first to successfully treat patients with goitre by using the iodine-rich thyroid gland of animals such as sheep and pigs—in raw, pill, or powdered form. This was outlined in Zhen Quan's (d. 643 AD) book, as well as several others. One Chinese book, The Pharmacopoeia of the Heavenly Husbandman, asserted that iodine-rich sargassum was used to treat goitre patients by the 1st century BC, but this book was written much later. In the 12th century, Zayn al-Din al-Jurjani, a Persian physician, provided the first description of Graves' disease after noting the association of goitre and a displacement of the eye known as exophthalmos in his Thesaurus of the Shah of Khwarazm, the major medical dictionary of its time. The disease was later named after Irish doctor Robert James Graves, who described a case of goitre with exophthalmos in 1835. The German Karl Adolph von Basedow also independently reported the same constellation of symptoms in 1840, while earlier reports of the disease were also published by the Italians Giuseppe Flajani and Antonio Giuseppe Testa, in 1802 and 1810 respectively, and by the English physician Caleb Hillier Parry (a friend of Edward Jenner) in the late 18th century. Paracelsus (1493–1541) was the first person to propose a relationship between goitre and minerals (particularly lead) in drinking water. Iodine was later discovered by Bernard Courtois in 1811 from seaweed ash. Goitre was previously common in many areas that were deficient in iodine in the soil. For example, in the English Midlands, the condition was known as Derbyshire Neck. In the United States, goitre was found in the Appalachian, Great Lakes, Midwest, and Intermountain regions. The condition is now practically absent in affluent nations, where table salt is supplemented with iodine. However, it is still prevalent in India, China, Central Asia, and Central Africa. Goitre had been prevalent in the alpine countries for a long time. Switzerland reduced the condition by introducing iodized salt in 1922. The Bavarian tracht in the Miesbach and Salzburg regions, which appeared in the 19th century, includes a choker, dubbed Kropfband (struma band) which was used to hide either the goitre or the remnants of goitre surgery. In the 1920s wearing bottles of iodine around the neck was believed to prevent goitre. The coat of arms and crest of Die Kröpfner, of Tyrol showed a man "afflicted with a large goitre", an apparent pun on the German for the word ("Kropf").
[ { "paragraph_id": 0, "text": "A goitre, or goiter, is a swelling in the neck resulting from an enlarged thyroid gland. A goitre can be associated with a thyroid that is not functioning properly.", "title": "" }, { "paragraph_id": 1, "text": "Worldwide, over 90% of goitre cases are caused by iodine deficiency. The term is from the Latin gutturia, meaning throat. Most goitres are not cancerous (benign), though they may be potentially harmful.", "title": "" }, { "paragraph_id": 2, "text": "A goitre can present as a palpable or visible enlargement of the thyroid gland at the base of the neck. A goitre, if associated with hypothyroidism or hyperthyroidism, may be present with symptoms of the underlying disorder. For hyperthyroidism, the most common symptoms are associated with adrenergic stimulation: tachycardia (increased heart rate), palpitations, nervousness, tremor, increased blood pressure and heat intolerance. Clinical manifestations are often related to hypermetabolism (increased metabolism), excessive thyroid hormone, an increase in oxygen consumption, metabolic changes in protein metabolism, immunologic stimulation of diffuse goitre, and ocular changes (exophthalmos). Hypothyroid people commonly have poor appetite, cold intolerance, constipation, lethargy and may undergo weight gain. However, these symptoms are often non-specific and make diagnosis difficult.", "title": "Signs and symptoms" }, { "paragraph_id": 3, "text": "According to the WHO classification of goitre by palpation, the severity of goitre is currently graded as grade 0, grade 1, grade 2.", "title": "Signs and symptoms" }, { "paragraph_id": 4, "text": "Worldwide, the most common cause for goitre is iodine deficiency, commonly seen in countries that scarcely use iodized salt. Selenium deficiency is also considered a contributing factor. In countries that use iodized salt, Hashimoto's thyroiditis is the most common cause. Goitre can also result from cyanide poisoning, which is particularly common in tropical countries where people eat the cyanide-rich cassava root as the staple food.", "title": "Causes" }, { "paragraph_id": 5, "text": "Goitre may be diagnosed via a thyroid function test in an individual suspected of having it.", "title": "Diagnosis" }, { "paragraph_id": 6, "text": "A goitre may be classified either as nodular or diffuse. Nodular goitres are either of one nodule (uninodular) or of multiple nodules (multinodular). Multinodular goiter (MNG) is the most common disorder of the thyroid gland.", "title": "Diagnosis" }, { "paragraph_id": 7, "text": "Goitre is treated according to the cause. If the thyroid gland is producing an excess of thyroid hormones (T3 and T4), radioactive iodine is given to the patient to shrink the gland. If goitre is caused by iodine deficiency, small doses of iodide in the form of Lugol's iodine or KI solution are given. If the goitre is associated with an underactive thyroid, thyroid supplements are used as treatment. Sometimes a partial or complete thyroidectomy is required.", "title": "Treatment" }, { "paragraph_id": 8, "text": "Goitre is more common among women, but this includes the many types of goitre caused by autoimmune problems, and not only those caused by simple lack of iodine.", "title": "Epidemiology" }, { "paragraph_id": 9, "text": "Iodine mainly accumulates in the sea and in the topsoil. Before iodine enrichment programs, goiters was common in areas with repeated flooding or glacial activities, which erodes the topsoil. It is endemic in populations where the intake of iodine is less than 10 µg per day.", "title": "Epidemiology" }, { "paragraph_id": 10, "text": "Examples of such regions include the alpine regions of Southern Europe (such as Switzerland), the Himalayans, the Great Lakes basin, etc. As reported in 1923, all the domestic animals have goiter in some of the glacial valleys of Southern Alaska. It was so severe in Pemberton Meadows that it was difficult to raise young animals there.", "title": "Epidemiology" }, { "paragraph_id": 11, "text": "Chinese physicians of the Tang dynasty (618–907) were the first to successfully treat patients with goitre by using the iodine-rich thyroid gland of animals such as sheep and pigs—in raw, pill, or powdered form. This was outlined in Zhen Quan's (d. 643 AD) book, as well as several others. One Chinese book, The Pharmacopoeia of the Heavenly Husbandman, asserted that iodine-rich sargassum was used to treat goitre patients by the 1st century BC, but this book was written much later.", "title": "History" }, { "paragraph_id": 12, "text": "In the 12th century, Zayn al-Din al-Jurjani, a Persian physician, provided the first description of Graves' disease after noting the association of goitre and a displacement of the eye known as exophthalmos in his Thesaurus of the Shah of Khwarazm, the major medical dictionary of its time. The disease was later named after Irish doctor Robert James Graves, who described a case of goitre with exophthalmos in 1835. The German Karl Adolph von Basedow also independently reported the same constellation of symptoms in 1840, while earlier reports of the disease were also published by the Italians Giuseppe Flajani and Antonio Giuseppe Testa, in 1802 and 1810 respectively, and by the English physician Caleb Hillier Parry (a friend of Edward Jenner) in the late 18th century.", "title": "History" }, { "paragraph_id": 13, "text": "Paracelsus (1493–1541) was the first person to propose a relationship between goitre and minerals (particularly lead) in drinking water. Iodine was later discovered by Bernard Courtois in 1811 from seaweed ash.", "title": "History" }, { "paragraph_id": 14, "text": "Goitre was previously common in many areas that were deficient in iodine in the soil. For example, in the English Midlands, the condition was known as Derbyshire Neck. In the United States, goitre was found in the Appalachian, Great Lakes, Midwest, and Intermountain regions. The condition is now practically absent in affluent nations, where table salt is supplemented with iodine. However, it is still prevalent in India, China, Central Asia, and Central Africa.", "title": "History" }, { "paragraph_id": 15, "text": "Goitre had been prevalent in the alpine countries for a long time. Switzerland reduced the condition by introducing iodized salt in 1922. The Bavarian tracht in the Miesbach and Salzburg regions, which appeared in the 19th century, includes a choker, dubbed Kropfband (struma band) which was used to hide either the goitre or the remnants of goitre surgery.", "title": "History" }, { "paragraph_id": 16, "text": "In the 1920s wearing bottles of iodine around the neck was believed to prevent goitre.", "title": "Society and culture" }, { "paragraph_id": 17, "text": "The coat of arms and crest of Die Kröpfner, of Tyrol showed a man \"afflicted with a large goitre\", an apparent pun on the German for the word (\"Kropf\").", "title": "Society and culture" } ]
A goitre, or goiter, is a swelling in the neck resulting from an enlarged thyroid gland. A goitre can be associated with a thyroid that is not functioning properly. Worldwide, over 90% of goitre cases are caused by iodine deficiency. The term is from the Latin gutturia, meaning throat. Most goitres are not cancerous (benign), though they may be potentially harmful.
2001-05-22T13:03:09Z
2023-09-27T00:57:18Z
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https://en.wikipedia.org/wiki/Goitre
12,266
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the context of a population. Genetics has given rise to a number of subfields, including molecular genetics, epigenetics and population genetics. Organisms studied within the broad field span the domains of life (archaea, bacteria, and eukarya). Genetic processes work in combination with an organism's environment and experiences to influence development and behavior, often referred to as nature versus nurture. The intracellular or extracellular environment of a living cell or organism may increase or decrease gene transcription. A classic example is two seeds of genetically identical corn, one placed in a temperate climate and one in an arid climate (lacking sufficient waterfall or rain). While the average height of the two corn stalks may be genetically determined to be equal, the one in the arid climate only grows to half the height of the one in the temperate climate due to lack of water and nutrients in its environment. The word genetics stems from the ancient Greek γενετικός genetikos meaning "genitive"/"generative", which in turn derives from γένεσις genesis meaning "origin". The observation that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. The modern science of genetics, seeking to understand this process, began with the work of the Augustinian friar Gregor Mendel in the mid-19th century. Prior to Mendel, Imre Festetics, a Hungarian noble, who lived in Kőszeg before Mendel, was the first who used the word "genetic" in hereditarian context. He described several rules of biological inheritance in his works The genetic laws of the Nature (Die genetischen Gesetze der Natur, 1819). His second law is the same as that which Mendel published. In his third law, he developed the basic principles of mutation (he can be considered a forerunner of Hugo de Vries). Festetics argued that changes observed in the generation of farm animals, plants, and humans are the result of scientific laws. Festetics empirically deduced that organisms inherit their characteristics, not acquire them. He recognized recessive traits and inherent variation by postulating that traits of past generations could reappear later, and organisms could produce progeny with different attributes. These observations represent an important prelude to Mendel's theory of particulate inheritance insofar as it features a transition of heredity from its status as myth to that of a scientific discipline, by providing a fundamental theoretical basis for genetics in the twentieth century. Other theories of inheritance preceded Mendel's work. A popular theory during the 19th century, and implied by Charles Darwin's 1859 On the Origin of Species, was blending inheritance: the idea that individuals inherit a smooth blend of traits from their parents. Mendel's work provided examples where traits were definitely not blended after hybridization, showing that traits are produced by combinations of distinct genes rather than a continuous blend. Blending of traits in the progeny is now explained by the action of multiple genes with quantitative effects. Another theory that had some support at that time was the inheritance of acquired characteristics: the belief that individuals inherit traits strengthened by their parents. This theory (commonly associated with Jean-Baptiste Lamarck) is now known to be wrong—the experiences of individuals do not affect the genes they pass to their children. Other theories included Darwin's pangenesis (which had both acquired and inherited aspects) and Francis Galton's reformulation of pangenesis as both particulate and inherited. Modern genetics started with Mendel's studies of the nature of inheritance in plants. In his paper "Versuche über Pflanzenhybriden" ("Experiments on Plant Hybridization"), presented in 1865 to the Naturforschender Verein (Society for Research in Nature) in Brno, Mendel traced the inheritance patterns of certain traits in pea plants and described them mathematically. Although this pattern of inheritance could only be observed for a few traits, Mendel's work suggested that heredity was particulate, not acquired, and that the inheritance patterns of many traits could be explained through simple rules and ratios. The importance of Mendel's work did not gain wide understanding until 1900, after his death, when Hugo de Vries and other scientists rediscovered his research. William Bateson, a proponent of Mendel's work, coined the word genetics in 1905. (The adjective genetic, derived from the Greek word genesis—γένεσις, "origin", predates the noun and was first used in a biological sense in 1860.) Bateson both acted as a mentor and was aided significantly by the work of other scientists from Newnham College at Cambridge, specifically the work of Becky Saunders, Nora Darwin Barlow, and Muriel Wheldale Onslow. Bateson popularized the usage of the word genetics to describe the study of inheritance in his inaugural address to the Third International Conference on Plant Hybridization in London in 1906. After the rediscovery of Mendel's work, scientists tried to determine which molecules in the cell were responsible for inheritance. In 1900, Nettie Stevens began studying the mealworm. Over the next 11 years, she discovered that females only had the X chromosome and males had both X and Y chromosomes. She was able to conclude that sex is a chromosomal factor and is determined by the male. In 1911, Thomas Hunt Morgan argued that genes are on chromosomes, based on observations of a sex-linked white eye mutation in fruit flies. In 1913, his student Alfred Sturtevant used the phenomenon of genetic linkage to show that genes are arranged linearly on the chromosome. Although genes were known to exist on chromosomes, chromosomes are composed of both protein and DNA, and scientists did not know which of the two is responsible for inheritance. In 1928, Frederick Griffith discovered the phenomenon of transformation: dead bacteria could transfer genetic material to "transform" other still-living bacteria. Sixteen years later, in 1944, the Avery–MacLeod–McCarty experiment identified DNA as the molecule responsible for transformation. The role of the nucleus as the repository of genetic information in eukaryotes had been established by Hämmerling in 1943 in his work on the single celled alga Acetabularia. The Hershey–Chase experiment in 1952 confirmed that DNA (rather than protein) is the genetic material of the viruses that infect bacteria, providing further evidence that DNA is the molecule responsible for inheritance. James Watson and Francis Crick determined the structure of DNA in 1953, using the X-ray crystallography work of Rosalind Franklin and Maurice Wilkins that indicated DNA has a helical structure (i.e., shaped like a corkscrew). Their double-helix model had two strands of DNA with the nucleotides pointing inward, each matching a complementary nucleotide on the other strand to form what look like rungs on a twisted ladder. This structure showed that genetic information exists in the sequence of nucleotides on each strand of DNA. The structure also suggested a simple method for replication: if the strands are separated, new partner strands can be reconstructed for each based on the sequence of the old strand. This property is what gives DNA its semi-conservative nature where one strand of new DNA is from an original parent strand. Although the structure of DNA showed how inheritance works, it was still not known how DNA influences the behavior of cells. In the following years, scientists tried to understand how DNA controls the process of protein production. It was discovered that the cell uses DNA as a template to create matching messenger RNA, molecules with nucleotides very similar to DNA. The nucleotide sequence of a messenger RNA is used to create an amino acid sequence in protein; this translation between nucleotide sequences and amino acid sequences is known as the genetic code. With the newfound molecular understanding of inheritance came an explosion of research. A notable theory arose from Tomoko Ohta in 1973 with her amendment to the neutral theory of molecular evolution through publishing the nearly neutral theory of molecular evolution. In this theory, Ohta stressed the importance of natural selection and the environment to the rate at which genetic evolution occurs. One important development was chain-termination DNA sequencing in 1977 by Frederick Sanger. This technology allows scientists to read the nucleotide sequence of a DNA molecule. In 1983, Kary Banks Mullis developed the polymerase chain reaction, providing a quick way to isolate and amplify a specific section of DNA from a mixture. The efforts of the Human Genome Project, Department of Energy, NIH, and parallel private efforts by Celera Genomics led to the sequencing of the human genome in 2003. At its most fundamental level, inheritance in organisms occurs by passing discrete heritable units, called genes, from parents to offspring. This property was first observed by Gregor Mendel, who studied the segregation of heritable traits in pea plants, showing for example that flowers on a single plant were either purple or white—but never an intermediate between the two colors. The discrete versions of the same gene controlling the inherited appearance (phenotypes) are called alleles. In the case of the pea, which is a diploid species, each individual plant has two copies of each gene, one copy inherited from each parent. Many species, including humans, have this pattern of inheritance. Diploid organisms with two copies of the same allele of a given gene are called homozygous at that gene locus, while organisms with two different alleles of a given gene are called heterozygous. The set of alleles for a given organism is called its genotype, while the observable traits of the organism are called its phenotype. When organisms are heterozygous at a gene, often one allele is called dominant as its qualities dominate the phenotype of the organism, while the other allele is called recessive as its qualities recede and are not observed. Some alleles do not have complete dominance and instead have incomplete dominance by expressing an intermediate phenotype, or codominance by expressing both alleles at once. When a pair of organisms reproduce sexually, their offspring randomly inherit one of the two alleles from each parent. These observations of discrete inheritance and the segregation of alleles are collectively known as Mendel's first law or the Law of Segregation. However, the probability of getting one gene over the other can change due to dominant, recessive, homozygous, or heterozygous genes. For example, Mendel found that if you cross homozygous dominate trait and homozygous recessive trait your odds of getting the dominant trait is 3:1. Real geneticist study and calculate probabilities by using theoretical probabilities, empirical probabilities, the product rule, the sum rule, and more. Geneticists use diagrams and symbols to describe inheritance. A gene is represented by one or a few letters. Often a "+" symbol is used to mark the usual, non-mutant allele for a gene. In fertilization and breeding experiments (and especially when discussing Mendel's laws) the parents are referred to as the "P" generation and the offspring as the "F1" (first filial) generation. When the F1 offspring mate with each other, the offspring are called the "F2" (second filial) generation. One of the common diagrams used to predict the result of cross-breeding is the Punnett square. When studying human genetic diseases, geneticists often use pedigree charts to represent the inheritance of traits. These charts map the inheritance of a trait in a family tree. Organisms have thousands of genes, and in sexually reproducing organisms these genes generally assort independently of each other. This means that the inheritance of an allele for yellow or green pea color is unrelated to the inheritance of alleles for white or purple flowers. This phenomenon, known as "Mendel's second law" or the "law of independent assortment," means that the alleles of different genes get shuffled between parents to form offspring with many different combinations. Different genes often interact to influence the same trait. In the Blue-eyed Mary (Omphalodes verna), for example, there exists a gene with alleles that determine the color of flowers: blue or magenta. Another gene, however, controls whether the flowers have color at all or are white. When a plant has two copies of this white allele, its flowers are white—regardless of whether the first gene has blue or magenta alleles. This interaction between genes is called epistasis, with the second gene epistatic to the first. Many traits are not discrete features (e.g. purple or white flowers) but are instead continuous features (e.g. human height and skin color). These complex traits are products of many genes. The influence of these genes is mediated, to varying degrees, by the environment an organism has experienced. The degree to which an organism's genes contribute to a complex trait is called heritability. Measurement of the heritability of a trait is relative—in a more variable environment, the environment has a bigger influence on the total variation of the trait. For example, human height is a trait with complex causes. It has a heritability of 89% in the United States. In Nigeria, however, where people experience a more variable access to good nutrition and health care, height has a heritability of only 62%. The molecular basis for genes is deoxyribonucleic acid (DNA). DNA is composed of deoxyribose (sugar molecule), a phosphate group, and a base (amine group). There are four types of bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The phosphates make hydrogen bonds with the sugars to make long phosphate-sugar backbones. Bases specifically pair together (T&A, C&G) between two backbones and make like rungs on a ladder. The bases, phosphates, and sugars together make a nucleotide that connects to make long chains of DNA. Genetic information exists in the sequence of these nucleotides, and genes exist as stretches of sequence along the DNA chain. These chains coil into a double a-helix structure and wrap around proteins called Histones which provide the structural support. DNA wrapped around these histones are called chromosomes. Viruses sometimes use the similar molecule RNA instead of DNA as their genetic material. DNA normally exists as a double-stranded molecule, coiled into the shape of a double helix. Each nucleotide in DNA preferentially pairs with its partner nucleotide on the opposite strand: A pairs with T, and C pairs with G. Thus, in its two-stranded form, each strand effectively contains all necessary information, redundant with its partner strand. This structure of DNA is the physical basis for inheritance: DNA replication duplicates the genetic information by splitting the strands and using each strand as a template for synthesis of a new partner strand. Genes are arranged linearly along long chains of DNA base-pair sequences. In bacteria, each cell usually contains a single circular genophore, while eukaryotic organisms (such as plants and animals) have their DNA arranged in multiple linear chromosomes. These DNA strands are often extremely long; the largest human chromosome, for example, is about 247 million base pairs in length. The DNA of a chromosome is associated with structural proteins that organize, compact, and control access to the DNA, forming a material called chromatin; in eukaryotes, chromatin is usually composed of nucleosomes, segments of DNA wound around cores of histone proteins. The full set of hereditary material in an organism (usually the combined DNA sequences of all chromosomes) is called the genome. DNA is most often found in the nucleus of cells, but Ruth Sager helped in the discovery of nonchromosomal genes found outside of the nucleus. In plants, these are often found in the chloroplasts and in other organisms, in the mitochondria. These nonchromosomal genes can still be passed on by either partner in sexual reproduction and they control a variety of hereditary characteristics that replicate and remain active throughout generations. While haploid organisms have only one copy of each chromosome, most animals and many plants are diploid, containing two of each chromosome and thus two copies of every gene. The two alleles for a gene are located on identical loci of the two homologous chromosomes, each allele inherited from a different parent. Many species have so-called sex chromosomes that determine the sex of each organism. In humans and many other animals, the Y chromosome contains the gene that triggers the development of the specifically male characteristics. In evolution, this chromosome has lost most of its content and also most of its genes, while the X chromosome is similar to the other chromosomes and contains many genes. This being said, Mary Frances Lyon discovered that there is X-chromosome inactivation during reproduction to avoid passing on twice as many genes to the offspring. Lyon's discovery led to the discovery of X-linked diseases. When cells divide, their full genome is copied and each daughter cell inherits one copy. This process, called mitosis, is the simplest form of reproduction and is the basis for asexual reproduction. Asexual reproduction can also occur in multicellular organisms, producing offspring that inherit their genome from a single parent. Offspring that are genetically identical to their parents are called clones. Eukaryotic organisms often use sexual reproduction to generate offspring that contain a mixture of genetic material inherited from two different parents. The process of sexual reproduction alternates between forms that contain single copies of the genome (haploid) and double copies (diploid). Haploid cells fuse and combine genetic material to create a diploid cell with paired chromosomes. Diploid organisms form haploids by dividing, without replicating their DNA, to create daughter cells that randomly inherit one of each pair of chromosomes. Most animals and many plants are diploid for most of their lifespan, with the haploid form reduced to single cell gametes such as sperm or eggs. Although they do not use the haploid/diploid method of sexual reproduction, bacteria have many methods of acquiring new genetic information. Some bacteria can undergo conjugation, transferring a small circular piece of DNA to another bacterium. Bacteria can also take up raw DNA fragments found in the environment and integrate them into their genomes, a phenomenon known as transformation. These processes result in horizontal gene transfer, transmitting fragments of genetic information between organisms that would be otherwise unrelated. Natural bacterial transformation occurs in many bacterial species, and can be regarded as a sexual process for transferring DNA from one cell to another cell (usually of the same species). Transformation requires the action of numerous bacterial gene products, and its primary adaptive function appears to be repair of DNA damages in the recipient cell. The diploid nature of chromosomes allows for genes on different chromosomes to assort independently or be separated from their homologous pair during sexual reproduction wherein haploid gametes are formed. In this way new combinations of genes can occur in the offspring of a mating pair. Genes on the same chromosome would theoretically never recombine. However, they do, via the cellular process of chromosomal crossover. During crossover, chromosomes exchange stretches of DNA, effectively shuffling the gene alleles between the chromosomes. This process of chromosomal crossover generally occurs during meiosis, a series of cell divisions that creates haploid cells. Meiotic recombination, particularly in microbial eukaryotes, appears to serve the adaptive function of repair of DNA damages. The first cytological demonstration of crossing over was performed by Harriet Creighton and Barbara McClintock in 1931. Their research and experiments on corn provided cytological evidence for the genetic theory that linked genes on paired chromosomes do in fact exchange places from one homolog to the other. The probability of chromosomal crossover occurring between two given points on the chromosome is related to the distance between the points. For an arbitrarily long distance, the probability of crossover is high enough that the inheritance of the genes is effectively uncorrelated. For genes that are closer together, however, the lower probability of crossover means that the genes demonstrate genetic linkage; alleles for the two genes tend to be inherited together. The amounts of linkage between a series of genes can be combined to form a linear linkage map that roughly describes the arrangement of the genes along the chromosome. Genes express their functional effect through the production of proteins, which are molecules responsible for most functions in the cell. Proteins are made up of one or more polypeptide chains, each composed of a sequence of amino acids. The DNA sequence of a gene is used to produce a specific amino acid sequence. This process begins with the production of an RNA molecule with a sequence matching the gene's DNA sequence, a process called transcription. This messenger RNA molecule then serves to produce a corresponding amino acid sequence through a process called translation. Each group of three nucleotides in the sequence, called a codon, corresponds either to one of the twenty possible amino acids in a protein or an instruction to end the amino acid sequence; this correspondence is called the genetic code. The flow of information is unidirectional: information is transferred from nucleotide sequences into the amino acid sequence of proteins, but it never transfers from protein back into the sequence of DNA—a phenomenon Francis Crick called the central dogma of molecular biology. The specific sequence of amino acids results in a unique three-dimensional structure for that protein, and the three-dimensional structures of proteins are related to their functions. Some are simple structural molecules, like the fibers formed by the protein collagen. Proteins can bind to other proteins and simple molecules, sometimes acting as enzymes by facilitating chemical reactions within the bound molecules (without changing the structure of the protein itself). Protein structure is dynamic; the protein hemoglobin bends into slightly different forms as it facilitates the capture, transport, and release of oxygen molecules within mammalian blood. A single nucleotide difference within DNA can cause a change in the amino acid sequence of a protein. Because protein structures are the result of their amino acid sequences, some changes can dramatically change the properties of a protein by destabilizing the structure or changing the surface of the protein in a way that changes its interaction with other proteins and molecules. For example, sickle-cell anemia is a human genetic disease that results from a single base difference within the coding region for the β-globin section of hemoglobin, causing a single amino acid change that changes hemoglobin's physical properties. Sickle-cell versions of hemoglobin stick to themselves, stacking to form fibers that distort the shape of red blood cells carrying the protein. These sickle-shaped cells no longer flow smoothly through blood vessels, having a tendency to clog or degrade, causing the medical problems associated with this disease. Some DNA sequences are transcribed into RNA but are not translated into protein products—such RNA molecules are called non-coding RNA. In some cases, these products fold into structures which are involved in critical cell functions (e.g. ribosomal RNA and transfer RNA). RNA can also have regulatory effects through hybridization interactions with other RNA molecules (such as microRNA). Although genes contain all the information an organism uses to function, the environment plays an important role in determining the ultimate phenotypes an organism displays. The phrase "nature and nurture" refers to this complementary relationship. The phenotype of an organism depends on the interaction of genes and the environment. An interesting example is the coat coloration of the Siamese cat. In this case, the body temperature of the cat plays the role of the environment. The cat's genes code for dark hair, thus the hair-producing cells in the cat make cellular proteins resulting in dark hair. But these dark hair-producing proteins are sensitive to temperature (i.e. have a mutation causing temperature-sensitivity) and denature in higher-temperature environments, failing to produce dark-hair pigment in areas where the cat has a higher body temperature. In a low-temperature environment, however, the protein's structure is stable and produces dark-hair pigment normally. The protein remains functional in areas of skin that are colder—such as its legs, ears, tail, and face—so the cat has dark hair at its extremities. Environment plays a major role in effects of the human genetic disease phenylketonuria. The mutation that causes phenylketonuria disrupts the ability of the body to break down the amino acid phenylalanine, causing a toxic build-up of an intermediate molecule that, in turn, causes severe symptoms of progressive intellectual disability and seizures. However, if someone with the phenylketonuria mutation follows a strict diet that avoids this amino acid, they remain normal and healthy. A common method for determining how genes and environment ("nature and nurture") contribute to a phenotype involves studying identical and fraternal twins, or other siblings of multiple births. Identical siblings are genetically the same since they come from the same zygote. Meanwhile, fraternal twins are as genetically different from one another as normal siblings. By comparing how often a certain disorder occurs in a pair of identical twins to how often it occurs in a pair of fraternal twins, scientists can determine whether that disorder is caused by genetic or postnatal environmental factors. One famous example involved the study of the Genain quadruplets, who were identical quadruplets all diagnosed with schizophrenia. The genome of a given organism contains thousands of genes, but not all these genes need to be active at any given moment. A gene is expressed when it is being transcribed into mRNA and there exist many cellular methods of controlling the expression of genes such that proteins are produced only when needed by the cell. Transcription factors are regulatory proteins that bind to DNA, either promoting or inhibiting the transcription of a gene. Within the genome of Escherichia coli bacteria, for example, there exists a series of genes necessary for the synthesis of the amino acid tryptophan. However, when tryptophan is already available to the cell, these genes for tryptophan synthesis are no longer needed. The presence of tryptophan directly affects the activity of the genes—tryptophan molecules bind to the tryptophan repressor (a transcription factor), changing the repressor's structure such that the repressor binds to the genes. The tryptophan repressor blocks the transcription and expression of the genes, thereby creating negative feedback regulation of the tryptophan synthesis process. Differences in gene expression are especially clear within multicellular organisms, where cells all contain the same genome but have very different structures and behaviors due to the expression of different sets of genes. All the cells in a multicellular organism derive from a single cell, differentiating into variant cell types in response to external and intercellular signals and gradually establishing different patterns of gene expression to create different behaviors. As no single gene is responsible for the development of structures within multicellular organisms, these patterns arise from the complex interactions between many cells. Within eukaryotes, there exist structural features of chromatin that influence the transcription of genes, often in the form of modifications to DNA and chromatin that are stably inherited by daughter cells. These features are called "epigenetic" because they exist "on top" of the DNA sequence and retain inheritance from one cell generation to the next. Because of epigenetic features, different cell types grown within the same medium can retain very different properties. Although epigenetic features are generally dynamic over the course of development, some, like the phenomenon of paramutation, have multigenerational inheritance and exist as rare exceptions to the general rule of DNA as the basis for inheritance. During the process of DNA replication, errors occasionally occur in the polymerization of the second strand. These errors, called mutations, can affect the phenotype of an organism, especially if they occur within the protein coding sequence of a gene. Error rates are usually very low—1 error in every 10–100 million bases—due to the "proofreading" ability of DNA polymerases. Processes that increase the rate of changes in DNA are called mutagenic: mutagenic chemicals promote errors in DNA replication, often by interfering with the structure of base-pairing, while UV radiation induces mutations by causing damage to the DNA structure. Chemical damage to DNA occurs naturally as well and cells use DNA repair mechanisms to repair mismatches and breaks. The repair does not, however, always restore the original sequence. A particularly important source of DNA damages appears to be reactive oxygen species produced by cellular aerobic respiration, and these can lead to mutations. In organisms that use chromosomal crossover to exchange DNA and recombine genes, errors in alignment during meiosis can also cause mutations. Errors in crossover are especially likely when similar sequences cause partner chromosomes to adopt a mistaken alignment; this makes some regions in genomes more prone to mutating in this way. These errors create large structural changes in DNA sequence—duplications, inversions, deletions of entire regions—or the accidental exchange of whole parts of sequences between different chromosomes, chromosomal translocation. Mutations alter an organism's genotype and occasionally this causes different phenotypes to appear. Most mutations have little effect on an organism's phenotype, health, or reproductive fitness. Mutations that do have an effect are usually detrimental, but occasionally some can be beneficial. Studies in the fly Drosophila melanogaster suggest that if a mutation changes a protein produced by a gene, about 70 percent of these mutations are harmful with the remainder being either neutral or weakly beneficial. Population genetics studies the distribution of genetic differences within populations and how these distributions change over time. Changes in the frequency of an allele in a population are mainly influenced by natural selection, where a given allele provides a selective or reproductive advantage to the organism, as well as other factors such as mutation, genetic drift, genetic hitchhiking, artificial selection and migration. Over many generations, the genomes of organisms can change significantly, resulting in evolution. In the process called adaptation, selection for beneficial mutations can cause a species to evolve into forms better able to survive in their environment. New species are formed through the process of speciation, often caused by geographical separations that prevent populations from exchanging genes with each other. By comparing the homology between different species' genomes, it is possible to calculate the evolutionary distance between them and when they may have diverged. Genetic comparisons are generally considered a more accurate method of characterizing the relatedness between species than the comparison of phenotypic characteristics. The evolutionary distances between species can be used to form evolutionary trees; these trees represent the common descent and divergence of species over time, although they do not show the transfer of genetic material between unrelated species (known as horizontal gene transfer and most common in bacteria). Although geneticists originally studied inheritance in a wide variety of organisms, the range of species studied has narrowed. One reason is that when significant research already exists for a given organism, new researchers are more likely to choose it for further study, and so eventually a few model organisms became the basis for most genetics research. Common research topics in model organism genetics include the study of gene regulation and the involvement of genes in development and cancer. Organisms were chosen, in part, for convenience—short generation times and easy genetic manipulation made some organisms popular genetics research tools. Widely used model organisms include the gut bacterium Escherichia coli, the plant Arabidopsis thaliana, baker's yeast (Saccharomyces cerevisiae), the nematode Caenorhabditis elegans, the common fruit fly (Drosophila melanogaster), the zebrafish (Danio rerio), and the common house mouse (Mus musculus). Medical genetics seeks to understand how genetic variation relates to human health and disease. When searching for an unknown gene that may be involved in a disease, researchers commonly use genetic linkage and genetic pedigree charts to find the location on the genome associated with the disease. At the population level, researchers take advantage of Mendelian randomization to look for locations in the genome that are associated with diseases, a method especially useful for multigenic traits not clearly defined by a single gene. Once a candidate gene is found, further research is often done on the corresponding (or homologous) genes of model organisms. In addition to studying genetic diseases, the increased availability of genotyping methods has led to the field of pharmacogenetics: the study of how genotype can affect drug responses. Individuals differ in their inherited tendency to develop cancer, and cancer is a genetic disease. The process of cancer development in the body is a combination of events. Mutations occasionally occur within cells in the body as they divide. Although these mutations will not be inherited by any offspring, they can affect the behavior of cells, sometimes causing them to grow and divide more frequently. There are biological mechanisms that attempt to stop this process; signals are given to inappropriately dividing cells that should trigger cell death, but sometimes additional mutations occur that cause cells to ignore these messages. An internal process of natural selection occurs within the body and eventually mutations accumulate within cells to promote their own growth, creating a cancerous tumor that grows and invades various tissues of the body. Normally, a cell divides only in response to signals called growth factors and stops growing once in contact with surrounding cells and in response to growth-inhibitory signals. It usually then divides a limited number of times and dies, staying within the epithelium where it is unable to migrate to other organs. To become a cancer cell, a cell has to accumulate mutations in a number of genes (three to seven). A cancer cell can divide without growth factor and ignores inhibitory signals. Also, it is immortal and can grow indefinitely, even after it makes contact with neighboring cells. It may escape from the epithelium and ultimately from the primary tumor. Then, the escaped cell can cross the endothelium of a blood vessel and get transported by the bloodstream to colonize a new organ, forming deadly metastasis. Although there are some genetic predispositions in a small fraction of cancers, the major fraction is due to a set of new genetic mutations that originally appear and accumulate in one or a small number of cells that will divide to form the tumor and are not transmitted to the progeny (somatic mutations). The most frequent mutations are a loss of function of p53 protein, a tumor suppressor, or in the p53 pathway, and gain of function mutations in the Ras proteins, or in other oncogenes. DNA can be manipulated in the laboratory. Restriction enzymes are commonly used enzymes that cut DNA at specific sequences, producing predictable fragments of DNA. DNA fragments can be visualized through use of gel electrophoresis, which separates fragments according to their length. The use of ligation enzymes allows DNA fragments to be connected. By binding ("ligating") fragments of DNA together from different sources, researchers can create recombinant DNA, the DNA often associated with genetically modified organisms. Recombinant DNA is commonly used in the context of plasmids: short circular DNA molecules with a few genes on them. In the process known as molecular cloning, researchers can amplify the DNA fragments by inserting plasmids into bacteria and then culturing them on plates of agar (to isolate clones of bacteria cells). "Cloning" can also refer to the various means of creating cloned ("clonal") organisms. DNA can also be amplified using a procedure called the polymerase chain reaction (PCR). By using specific short sequences of DNA, PCR can isolate and exponentially amplify a targeted region of DNA. Because it can amplify from extremely small amounts of DNA, PCR is also often used to detect the presence of specific DNA sequences. DNA sequencing, one of the most fundamental technologies developed to study genetics, allows researchers to determine the sequence of nucleotides in DNA fragments. The technique of chain-termination sequencing, developed in 1977 by a team led by Frederick Sanger, is still routinely used to sequence DNA fragments. Using this technology, researchers have been able to study the molecular sequences associated with many human diseases. As sequencing has become less expensive, researchers have sequenced the genomes of many organisms using a process called genome assembly, which uses computational tools to stitch together sequences from many different fragments. These technologies were used to sequence the human genome in the Human Genome Project completed in 2003. New high-throughput sequencing technologies are dramatically lowering the cost of DNA sequencing, with many researchers hoping to bring the cost of resequencing a human genome down to a thousand dollars. Next-generation sequencing (or high-throughput sequencing) came about due to the ever-increasing demand for low-cost sequencing. These sequencing technologies allow the production of potentially millions of sequences concurrently. The large amount of sequence data available has created the subfield of genomics, research that uses computational tools to search for and analyze patterns in the full genomes of organisms. Genomics can also be considered a subfield of bioinformatics, which uses computational approaches to analyze large sets of biological data. A common problem to these fields of research is how to manage and share data that deals with human subject and personally identifiable information. On 19 March 2015, a group of leading biologists urged a worldwide ban on clinical use of methods, particularly the use of CRISPR and zinc finger, to edit the human genome in a way that can be inherited. In April 2015, Chinese researchers reported results of basic research to edit the DNA of non-viable human embryos using CRISPR.
[ { "paragraph_id": 0, "text": "Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied \"trait inheritance\", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete \"units of inheritance\". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene.", "title": "" }, { "paragraph_id": 1, "text": "Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the context of a population. Genetics has given rise to a number of subfields, including molecular genetics, epigenetics and population genetics. Organisms studied within the broad field span the domains of life (archaea, bacteria, and eukarya).", "title": "" }, { "paragraph_id": 2, "text": "Genetic processes work in combination with an organism's environment and experiences to influence development and behavior, often referred to as nature versus nurture. The intracellular or extracellular environment of a living cell or organism may increase or decrease gene transcription. A classic example is two seeds of genetically identical corn, one placed in a temperate climate and one in an arid climate (lacking sufficient waterfall or rain). While the average height of the two corn stalks may be genetically determined to be equal, the one in the arid climate only grows to half the height of the one in the temperate climate due to lack of water and nutrients in its environment.", "title": "" }, { "paragraph_id": 3, "text": "The word genetics stems from the ancient Greek γενετικός genetikos meaning \"genitive\"/\"generative\", which in turn derives from γένεσις genesis meaning \"origin\".", "title": "Etymology" }, { "paragraph_id": 4, "text": "The observation that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. The modern science of genetics, seeking to understand this process, began with the work of the Augustinian friar Gregor Mendel in the mid-19th century.", "title": "History" }, { "paragraph_id": 5, "text": "Prior to Mendel, Imre Festetics, a Hungarian noble, who lived in Kőszeg before Mendel, was the first who used the word \"genetic\" in hereditarian context. He described several rules of biological inheritance in his works The genetic laws of the Nature (Die genetischen Gesetze der Natur, 1819). His second law is the same as that which Mendel published. In his third law, he developed the basic principles of mutation (he can be considered a forerunner of Hugo de Vries). Festetics argued that changes observed in the generation of farm animals, plants, and humans are the result of scientific laws. Festetics empirically deduced that organisms inherit their characteristics, not acquire them. He recognized recessive traits and inherent variation by postulating that traits of past generations could reappear later, and organisms could produce progeny with different attributes. These observations represent an important prelude to Mendel's theory of particulate inheritance insofar as it features a transition of heredity from its status as myth to that of a scientific discipline, by providing a fundamental theoretical basis for genetics in the twentieth century.", "title": "History" }, { "paragraph_id": 6, "text": "Other theories of inheritance preceded Mendel's work. A popular theory during the 19th century, and implied by Charles Darwin's 1859 On the Origin of Species, was blending inheritance: the idea that individuals inherit a smooth blend of traits from their parents. Mendel's work provided examples where traits were definitely not blended after hybridization, showing that traits are produced by combinations of distinct genes rather than a continuous blend. Blending of traits in the progeny is now explained by the action of multiple genes with quantitative effects. Another theory that had some support at that time was the inheritance of acquired characteristics: the belief that individuals inherit traits strengthened by their parents. This theory (commonly associated with Jean-Baptiste Lamarck) is now known to be wrong—the experiences of individuals do not affect the genes they pass to their children. Other theories included Darwin's pangenesis (which had both acquired and inherited aspects) and Francis Galton's reformulation of pangenesis as both particulate and inherited.", "title": "History" }, { "paragraph_id": 7, "text": "Modern genetics started with Mendel's studies of the nature of inheritance in plants. In his paper \"Versuche über Pflanzenhybriden\" (\"Experiments on Plant Hybridization\"), presented in 1865 to the Naturforschender Verein (Society for Research in Nature) in Brno, Mendel traced the inheritance patterns of certain traits in pea plants and described them mathematically. Although this pattern of inheritance could only be observed for a few traits, Mendel's work suggested that heredity was particulate, not acquired, and that the inheritance patterns of many traits could be explained through simple rules and ratios.", "title": "History" }, { "paragraph_id": 8, "text": "The importance of Mendel's work did not gain wide understanding until 1900, after his death, when Hugo de Vries and other scientists rediscovered his research. William Bateson, a proponent of Mendel's work, coined the word genetics in 1905. (The adjective genetic, derived from the Greek word genesis—γένεσις, \"origin\", predates the noun and was first used in a biological sense in 1860.) Bateson both acted as a mentor and was aided significantly by the work of other scientists from Newnham College at Cambridge, specifically the work of Becky Saunders, Nora Darwin Barlow, and Muriel Wheldale Onslow. Bateson popularized the usage of the word genetics to describe the study of inheritance in his inaugural address to the Third International Conference on Plant Hybridization in London in 1906.", "title": "History" }, { "paragraph_id": 9, "text": "After the rediscovery of Mendel's work, scientists tried to determine which molecules in the cell were responsible for inheritance. In 1900, Nettie Stevens began studying the mealworm. Over the next 11 years, she discovered that females only had the X chromosome and males had both X and Y chromosomes. She was able to conclude that sex is a chromosomal factor and is determined by the male. In 1911, Thomas Hunt Morgan argued that genes are on chromosomes, based on observations of a sex-linked white eye mutation in fruit flies. In 1913, his student Alfred Sturtevant used the phenomenon of genetic linkage to show that genes are arranged linearly on the chromosome.", "title": "History" }, { "paragraph_id": 10, "text": "Although genes were known to exist on chromosomes, chromosomes are composed of both protein and DNA, and scientists did not know which of the two is responsible for inheritance. In 1928, Frederick Griffith discovered the phenomenon of transformation: dead bacteria could transfer genetic material to \"transform\" other still-living bacteria. Sixteen years later, in 1944, the Avery–MacLeod–McCarty experiment identified DNA as the molecule responsible for transformation. The role of the nucleus as the repository of genetic information in eukaryotes had been established by Hämmerling in 1943 in his work on the single celled alga Acetabularia. The Hershey–Chase experiment in 1952 confirmed that DNA (rather than protein) is the genetic material of the viruses that infect bacteria, providing further evidence that DNA is the molecule responsible for inheritance.", "title": "History" }, { "paragraph_id": 11, "text": "James Watson and Francis Crick determined the structure of DNA in 1953, using the X-ray crystallography work of Rosalind Franklin and Maurice Wilkins that indicated DNA has a helical structure (i.e., shaped like a corkscrew). Their double-helix model had two strands of DNA with the nucleotides pointing inward, each matching a complementary nucleotide on the other strand to form what look like rungs on a twisted ladder. This structure showed that genetic information exists in the sequence of nucleotides on each strand of DNA. The structure also suggested a simple method for replication: if the strands are separated, new partner strands can be reconstructed for each based on the sequence of the old strand. This property is what gives DNA its semi-conservative nature where one strand of new DNA is from an original parent strand.", "title": "History" }, { "paragraph_id": 12, "text": "Although the structure of DNA showed how inheritance works, it was still not known how DNA influences the behavior of cells. In the following years, scientists tried to understand how DNA controls the process of protein production. It was discovered that the cell uses DNA as a template to create matching messenger RNA, molecules with nucleotides very similar to DNA. The nucleotide sequence of a messenger RNA is used to create an amino acid sequence in protein; this translation between nucleotide sequences and amino acid sequences is known as the genetic code.", "title": "History" }, { "paragraph_id": 13, "text": "With the newfound molecular understanding of inheritance came an explosion of research. A notable theory arose from Tomoko Ohta in 1973 with her amendment to the neutral theory of molecular evolution through publishing the nearly neutral theory of molecular evolution. In this theory, Ohta stressed the importance of natural selection and the environment to the rate at which genetic evolution occurs. One important development was chain-termination DNA sequencing in 1977 by Frederick Sanger. This technology allows scientists to read the nucleotide sequence of a DNA molecule. In 1983, Kary Banks Mullis developed the polymerase chain reaction, providing a quick way to isolate and amplify a specific section of DNA from a mixture. The efforts of the Human Genome Project, Department of Energy, NIH, and parallel private efforts by Celera Genomics led to the sequencing of the human genome in 2003.", "title": "History" }, { "paragraph_id": 14, "text": "At its most fundamental level, inheritance in organisms occurs by passing discrete heritable units, called genes, from parents to offspring. This property was first observed by Gregor Mendel, who studied the segregation of heritable traits in pea plants, showing for example that flowers on a single plant were either purple or white—but never an intermediate between the two colors. The discrete versions of the same gene controlling the inherited appearance (phenotypes) are called alleles.", "title": "Features of inheritance" }, { "paragraph_id": 15, "text": "In the case of the pea, which is a diploid species, each individual plant has two copies of each gene, one copy inherited from each parent. Many species, including humans, have this pattern of inheritance. Diploid organisms with two copies of the same allele of a given gene are called homozygous at that gene locus, while organisms with two different alleles of a given gene are called heterozygous. The set of alleles for a given organism is called its genotype, while the observable traits of the organism are called its phenotype. When organisms are heterozygous at a gene, often one allele is called dominant as its qualities dominate the phenotype of the organism, while the other allele is called recessive as its qualities recede and are not observed. Some alleles do not have complete dominance and instead have incomplete dominance by expressing an intermediate phenotype, or codominance by expressing both alleles at once.", "title": "Features of inheritance" }, { "paragraph_id": 16, "text": "When a pair of organisms reproduce sexually, their offspring randomly inherit one of the two alleles from each parent. These observations of discrete inheritance and the segregation of alleles are collectively known as Mendel's first law or the Law of Segregation. However, the probability of getting one gene over the other can change due to dominant, recessive, homozygous, or heterozygous genes. For example, Mendel found that if you cross homozygous dominate trait and homozygous recessive trait your odds of getting the dominant trait is 3:1. Real geneticist study and calculate probabilities by using theoretical probabilities, empirical probabilities, the product rule, the sum rule, and more.", "title": "Features of inheritance" }, { "paragraph_id": 17, "text": "Geneticists use diagrams and symbols to describe inheritance. A gene is represented by one or a few letters. Often a \"+\" symbol is used to mark the usual, non-mutant allele for a gene.", "title": "Features of inheritance" }, { "paragraph_id": 18, "text": "In fertilization and breeding experiments (and especially when discussing Mendel's laws) the parents are referred to as the \"P\" generation and the offspring as the \"F1\" (first filial) generation. When the F1 offspring mate with each other, the offspring are called the \"F2\" (second filial) generation. One of the common diagrams used to predict the result of cross-breeding is the Punnett square.", "title": "Features of inheritance" }, { "paragraph_id": 19, "text": "When studying human genetic diseases, geneticists often use pedigree charts to represent the inheritance of traits. These charts map the inheritance of a trait in a family tree.", "title": "Features of inheritance" }, { "paragraph_id": 20, "text": "Organisms have thousands of genes, and in sexually reproducing organisms these genes generally assort independently of each other. This means that the inheritance of an allele for yellow or green pea color is unrelated to the inheritance of alleles for white or purple flowers. This phenomenon, known as \"Mendel's second law\" or the \"law of independent assortment,\" means that the alleles of different genes get shuffled between parents to form offspring with many different combinations. Different genes often interact to influence the same trait. In the Blue-eyed Mary (Omphalodes verna), for example, there exists a gene with alleles that determine the color of flowers: blue or magenta. Another gene, however, controls whether the flowers have color at all or are white. When a plant has two copies of this white allele, its flowers are white—regardless of whether the first gene has blue or magenta alleles. This interaction between genes is called epistasis, with the second gene epistatic to the first.", "title": "Features of inheritance" }, { "paragraph_id": 21, "text": "Many traits are not discrete features (e.g. purple or white flowers) but are instead continuous features (e.g. human height and skin color). These complex traits are products of many genes. The influence of these genes is mediated, to varying degrees, by the environment an organism has experienced. The degree to which an organism's genes contribute to a complex trait is called heritability. Measurement of the heritability of a trait is relative—in a more variable environment, the environment has a bigger influence on the total variation of the trait. For example, human height is a trait with complex causes. It has a heritability of 89% in the United States. In Nigeria, however, where people experience a more variable access to good nutrition and health care, height has a heritability of only 62%.", "title": "Features of inheritance" }, { "paragraph_id": 22, "text": "The molecular basis for genes is deoxyribonucleic acid (DNA). DNA is composed of deoxyribose (sugar molecule), a phosphate group, and a base (amine group). There are four types of bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The phosphates make hydrogen bonds with the sugars to make long phosphate-sugar backbones. Bases specifically pair together (T&A, C&G) between two backbones and make like rungs on a ladder. The bases, phosphates, and sugars together make a nucleotide that connects to make long chains of DNA. Genetic information exists in the sequence of these nucleotides, and genes exist as stretches of sequence along the DNA chain. These chains coil into a double a-helix structure and wrap around proteins called Histones which provide the structural support. DNA wrapped around these histones are called chromosomes. Viruses sometimes use the similar molecule RNA instead of DNA as their genetic material.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 23, "text": "DNA normally exists as a double-stranded molecule, coiled into the shape of a double helix. Each nucleotide in DNA preferentially pairs with its partner nucleotide on the opposite strand: A pairs with T, and C pairs with G. Thus, in its two-stranded form, each strand effectively contains all necessary information, redundant with its partner strand. This structure of DNA is the physical basis for inheritance: DNA replication duplicates the genetic information by splitting the strands and using each strand as a template for synthesis of a new partner strand.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 24, "text": "Genes are arranged linearly along long chains of DNA base-pair sequences. In bacteria, each cell usually contains a single circular genophore, while eukaryotic organisms (such as plants and animals) have their DNA arranged in multiple linear chromosomes. These DNA strands are often extremely long; the largest human chromosome, for example, is about 247 million base pairs in length. The DNA of a chromosome is associated with structural proteins that organize, compact, and control access to the DNA, forming a material called chromatin; in eukaryotes, chromatin is usually composed of nucleosomes, segments of DNA wound around cores of histone proteins. The full set of hereditary material in an organism (usually the combined DNA sequences of all chromosomes) is called the genome.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 25, "text": "DNA is most often found in the nucleus of cells, but Ruth Sager helped in the discovery of nonchromosomal genes found outside of the nucleus. In plants, these are often found in the chloroplasts and in other organisms, in the mitochondria. These nonchromosomal genes can still be passed on by either partner in sexual reproduction and they control a variety of hereditary characteristics that replicate and remain active throughout generations.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 26, "text": "While haploid organisms have only one copy of each chromosome, most animals and many plants are diploid, containing two of each chromosome and thus two copies of every gene. The two alleles for a gene are located on identical loci of the two homologous chromosomes, each allele inherited from a different parent.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 27, "text": "Many species have so-called sex chromosomes that determine the sex of each organism. In humans and many other animals, the Y chromosome contains the gene that triggers the development of the specifically male characteristics. In evolution, this chromosome has lost most of its content and also most of its genes, while the X chromosome is similar to the other chromosomes and contains many genes. This being said, Mary Frances Lyon discovered that there is X-chromosome inactivation during reproduction to avoid passing on twice as many genes to the offspring. Lyon's discovery led to the discovery of X-linked diseases.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 28, "text": "When cells divide, their full genome is copied and each daughter cell inherits one copy. This process, called mitosis, is the simplest form of reproduction and is the basis for asexual reproduction. Asexual reproduction can also occur in multicellular organisms, producing offspring that inherit their genome from a single parent. Offspring that are genetically identical to their parents are called clones.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 29, "text": "Eukaryotic organisms often use sexual reproduction to generate offspring that contain a mixture of genetic material inherited from two different parents. The process of sexual reproduction alternates between forms that contain single copies of the genome (haploid) and double copies (diploid). Haploid cells fuse and combine genetic material to create a diploid cell with paired chromosomes. Diploid organisms form haploids by dividing, without replicating their DNA, to create daughter cells that randomly inherit one of each pair of chromosomes. Most animals and many plants are diploid for most of their lifespan, with the haploid form reduced to single cell gametes such as sperm or eggs.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 30, "text": "Although they do not use the haploid/diploid method of sexual reproduction, bacteria have many methods of acquiring new genetic information. Some bacteria can undergo conjugation, transferring a small circular piece of DNA to another bacterium. Bacteria can also take up raw DNA fragments found in the environment and integrate them into their genomes, a phenomenon known as transformation. These processes result in horizontal gene transfer, transmitting fragments of genetic information between organisms that would be otherwise unrelated. Natural bacterial transformation occurs in many bacterial species, and can be regarded as a sexual process for transferring DNA from one cell to another cell (usually of the same species). Transformation requires the action of numerous bacterial gene products, and its primary adaptive function appears to be repair of DNA damages in the recipient cell.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 31, "text": "The diploid nature of chromosomes allows for genes on different chromosomes to assort independently or be separated from their homologous pair during sexual reproduction wherein haploid gametes are formed. In this way new combinations of genes can occur in the offspring of a mating pair. Genes on the same chromosome would theoretically never recombine. However, they do, via the cellular process of chromosomal crossover. During crossover, chromosomes exchange stretches of DNA, effectively shuffling the gene alleles between the chromosomes. This process of chromosomal crossover generally occurs during meiosis, a series of cell divisions that creates haploid cells. Meiotic recombination, particularly in microbial eukaryotes, appears to serve the adaptive function of repair of DNA damages.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 32, "text": "The first cytological demonstration of crossing over was performed by Harriet Creighton and Barbara McClintock in 1931. Their research and experiments on corn provided cytological evidence for the genetic theory that linked genes on paired chromosomes do in fact exchange places from one homolog to the other.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 33, "text": "The probability of chromosomal crossover occurring between two given points on the chromosome is related to the distance between the points. For an arbitrarily long distance, the probability of crossover is high enough that the inheritance of the genes is effectively uncorrelated. For genes that are closer together, however, the lower probability of crossover means that the genes demonstrate genetic linkage; alleles for the two genes tend to be inherited together. The amounts of linkage between a series of genes can be combined to form a linear linkage map that roughly describes the arrangement of the genes along the chromosome.", "title": "Molecular basis for inheritance" }, { "paragraph_id": 34, "text": "Genes express their functional effect through the production of proteins, which are molecules responsible for most functions in the cell. Proteins are made up of one or more polypeptide chains, each composed of a sequence of amino acids. The DNA sequence of a gene is used to produce a specific amino acid sequence. This process begins with the production of an RNA molecule with a sequence matching the gene's DNA sequence, a process called transcription.", "title": "Gene expression" }, { "paragraph_id": 35, "text": "This messenger RNA molecule then serves to produce a corresponding amino acid sequence through a process called translation. Each group of three nucleotides in the sequence, called a codon, corresponds either to one of the twenty possible amino acids in a protein or an instruction to end the amino acid sequence; this correspondence is called the genetic code. The flow of information is unidirectional: information is transferred from nucleotide sequences into the amino acid sequence of proteins, but it never transfers from protein back into the sequence of DNA—a phenomenon Francis Crick called the central dogma of molecular biology.", "title": "Gene expression" }, { "paragraph_id": 36, "text": "The specific sequence of amino acids results in a unique three-dimensional structure for that protein, and the three-dimensional structures of proteins are related to their functions. Some are simple structural molecules, like the fibers formed by the protein collagen. Proteins can bind to other proteins and simple molecules, sometimes acting as enzymes by facilitating chemical reactions within the bound molecules (without changing the structure of the protein itself). Protein structure is dynamic; the protein hemoglobin bends into slightly different forms as it facilitates the capture, transport, and release of oxygen molecules within mammalian blood.", "title": "Gene expression" }, { "paragraph_id": 37, "text": "A single nucleotide difference within DNA can cause a change in the amino acid sequence of a protein. Because protein structures are the result of their amino acid sequences, some changes can dramatically change the properties of a protein by destabilizing the structure or changing the surface of the protein in a way that changes its interaction with other proteins and molecules. For example, sickle-cell anemia is a human genetic disease that results from a single base difference within the coding region for the β-globin section of hemoglobin, causing a single amino acid change that changes hemoglobin's physical properties. Sickle-cell versions of hemoglobin stick to themselves, stacking to form fibers that distort the shape of red blood cells carrying the protein. These sickle-shaped cells no longer flow smoothly through blood vessels, having a tendency to clog or degrade, causing the medical problems associated with this disease.", "title": "Gene expression" }, { "paragraph_id": 38, "text": "Some DNA sequences are transcribed into RNA but are not translated into protein products—such RNA molecules are called non-coding RNA. In some cases, these products fold into structures which are involved in critical cell functions (e.g. ribosomal RNA and transfer RNA). RNA can also have regulatory effects through hybridization interactions with other RNA molecules (such as microRNA).", "title": "Gene expression" }, { "paragraph_id": 39, "text": "Although genes contain all the information an organism uses to function, the environment plays an important role in determining the ultimate phenotypes an organism displays. The phrase \"nature and nurture\" refers to this complementary relationship. The phenotype of an organism depends on the interaction of genes and the environment. An interesting example is the coat coloration of the Siamese cat. In this case, the body temperature of the cat plays the role of the environment. The cat's genes code for dark hair, thus the hair-producing cells in the cat make cellular proteins resulting in dark hair. But these dark hair-producing proteins are sensitive to temperature (i.e. have a mutation causing temperature-sensitivity) and denature in higher-temperature environments, failing to produce dark-hair pigment in areas where the cat has a higher body temperature. In a low-temperature environment, however, the protein's structure is stable and produces dark-hair pigment normally. The protein remains functional in areas of skin that are colder—such as its legs, ears, tail, and face—so the cat has dark hair at its extremities.", "title": "Gene expression" }, { "paragraph_id": 40, "text": "Environment plays a major role in effects of the human genetic disease phenylketonuria. The mutation that causes phenylketonuria disrupts the ability of the body to break down the amino acid phenylalanine, causing a toxic build-up of an intermediate molecule that, in turn, causes severe symptoms of progressive intellectual disability and seizures. However, if someone with the phenylketonuria mutation follows a strict diet that avoids this amino acid, they remain normal and healthy.", "title": "Gene expression" }, { "paragraph_id": 41, "text": "A common method for determining how genes and environment (\"nature and nurture\") contribute to a phenotype involves studying identical and fraternal twins, or other siblings of multiple births. Identical siblings are genetically the same since they come from the same zygote. Meanwhile, fraternal twins are as genetically different from one another as normal siblings. By comparing how often a certain disorder occurs in a pair of identical twins to how often it occurs in a pair of fraternal twins, scientists can determine whether that disorder is caused by genetic or postnatal environmental factors. One famous example involved the study of the Genain quadruplets, who were identical quadruplets all diagnosed with schizophrenia.", "title": "Gene expression" }, { "paragraph_id": 42, "text": "The genome of a given organism contains thousands of genes, but not all these genes need to be active at any given moment. A gene is expressed when it is being transcribed into mRNA and there exist many cellular methods of controlling the expression of genes such that proteins are produced only when needed by the cell. Transcription factors are regulatory proteins that bind to DNA, either promoting or inhibiting the transcription of a gene. Within the genome of Escherichia coli bacteria, for example, there exists a series of genes necessary for the synthesis of the amino acid tryptophan. However, when tryptophan is already available to the cell, these genes for tryptophan synthesis are no longer needed. The presence of tryptophan directly affects the activity of the genes—tryptophan molecules bind to the tryptophan repressor (a transcription factor), changing the repressor's structure such that the repressor binds to the genes. The tryptophan repressor blocks the transcription and expression of the genes, thereby creating negative feedback regulation of the tryptophan synthesis process.", "title": "Gene expression" }, { "paragraph_id": 43, "text": "Differences in gene expression are especially clear within multicellular organisms, where cells all contain the same genome but have very different structures and behaviors due to the expression of different sets of genes. All the cells in a multicellular organism derive from a single cell, differentiating into variant cell types in response to external and intercellular signals and gradually establishing different patterns of gene expression to create different behaviors. As no single gene is responsible for the development of structures within multicellular organisms, these patterns arise from the complex interactions between many cells.", "title": "Gene expression" }, { "paragraph_id": 44, "text": "Within eukaryotes, there exist structural features of chromatin that influence the transcription of genes, often in the form of modifications to DNA and chromatin that are stably inherited by daughter cells. These features are called \"epigenetic\" because they exist \"on top\" of the DNA sequence and retain inheritance from one cell generation to the next. Because of epigenetic features, different cell types grown within the same medium can retain very different properties. Although epigenetic features are generally dynamic over the course of development, some, like the phenomenon of paramutation, have multigenerational inheritance and exist as rare exceptions to the general rule of DNA as the basis for inheritance.", "title": "Gene expression" }, { "paragraph_id": 45, "text": "During the process of DNA replication, errors occasionally occur in the polymerization of the second strand. These errors, called mutations, can affect the phenotype of an organism, especially if they occur within the protein coding sequence of a gene. Error rates are usually very low—1 error in every 10–100 million bases—due to the \"proofreading\" ability of DNA polymerases. Processes that increase the rate of changes in DNA are called mutagenic: mutagenic chemicals promote errors in DNA replication, often by interfering with the structure of base-pairing, while UV radiation induces mutations by causing damage to the DNA structure. Chemical damage to DNA occurs naturally as well and cells use DNA repair mechanisms to repair mismatches and breaks. The repair does not, however, always restore the original sequence. A particularly important source of DNA damages appears to be reactive oxygen species produced by cellular aerobic respiration, and these can lead to mutations.", "title": "Genetic change" }, { "paragraph_id": 46, "text": "In organisms that use chromosomal crossover to exchange DNA and recombine genes, errors in alignment during meiosis can also cause mutations. Errors in crossover are especially likely when similar sequences cause partner chromosomes to adopt a mistaken alignment; this makes some regions in genomes more prone to mutating in this way. These errors create large structural changes in DNA sequence—duplications, inversions, deletions of entire regions—or the accidental exchange of whole parts of sequences between different chromosomes, chromosomal translocation.", "title": "Genetic change" }, { "paragraph_id": 47, "text": "Mutations alter an organism's genotype and occasionally this causes different phenotypes to appear. Most mutations have little effect on an organism's phenotype, health, or reproductive fitness. Mutations that do have an effect are usually detrimental, but occasionally some can be beneficial. Studies in the fly Drosophila melanogaster suggest that if a mutation changes a protein produced by a gene, about 70 percent of these mutations are harmful with the remainder being either neutral or weakly beneficial.", "title": "Genetic change" }, { "paragraph_id": 48, "text": "Population genetics studies the distribution of genetic differences within populations and how these distributions change over time. Changes in the frequency of an allele in a population are mainly influenced by natural selection, where a given allele provides a selective or reproductive advantage to the organism, as well as other factors such as mutation, genetic drift, genetic hitchhiking, artificial selection and migration.", "title": "Genetic change" }, { "paragraph_id": 49, "text": "Over many generations, the genomes of organisms can change significantly, resulting in evolution. In the process called adaptation, selection for beneficial mutations can cause a species to evolve into forms better able to survive in their environment. New species are formed through the process of speciation, often caused by geographical separations that prevent populations from exchanging genes with each other.", "title": "Genetic change" }, { "paragraph_id": 50, "text": "By comparing the homology between different species' genomes, it is possible to calculate the evolutionary distance between them and when they may have diverged. Genetic comparisons are generally considered a more accurate method of characterizing the relatedness between species than the comparison of phenotypic characteristics. The evolutionary distances between species can be used to form evolutionary trees; these trees represent the common descent and divergence of species over time, although they do not show the transfer of genetic material between unrelated species (known as horizontal gene transfer and most common in bacteria).", "title": "Genetic change" }, { "paragraph_id": 51, "text": "Although geneticists originally studied inheritance in a wide variety of organisms, the range of species studied has narrowed. One reason is that when significant research already exists for a given organism, new researchers are more likely to choose it for further study, and so eventually a few model organisms became the basis for most genetics research. Common research topics in model organism genetics include the study of gene regulation and the involvement of genes in development and cancer. Organisms were chosen, in part, for convenience—short generation times and easy genetic manipulation made some organisms popular genetics research tools. Widely used model organisms include the gut bacterium Escherichia coli, the plant Arabidopsis thaliana, baker's yeast (Saccharomyces cerevisiae), the nematode Caenorhabditis elegans, the common fruit fly (Drosophila melanogaster), the zebrafish (Danio rerio), and the common house mouse (Mus musculus).", "title": "Genetic change" }, { "paragraph_id": 52, "text": "Medical genetics seeks to understand how genetic variation relates to human health and disease. When searching for an unknown gene that may be involved in a disease, researchers commonly use genetic linkage and genetic pedigree charts to find the location on the genome associated with the disease. At the population level, researchers take advantage of Mendelian randomization to look for locations in the genome that are associated with diseases, a method especially useful for multigenic traits not clearly defined by a single gene. Once a candidate gene is found, further research is often done on the corresponding (or homologous) genes of model organisms. In addition to studying genetic diseases, the increased availability of genotyping methods has led to the field of pharmacogenetics: the study of how genotype can affect drug responses.", "title": "Genetic change" }, { "paragraph_id": 53, "text": "Individuals differ in their inherited tendency to develop cancer, and cancer is a genetic disease. The process of cancer development in the body is a combination of events. Mutations occasionally occur within cells in the body as they divide. Although these mutations will not be inherited by any offspring, they can affect the behavior of cells, sometimes causing them to grow and divide more frequently. There are biological mechanisms that attempt to stop this process; signals are given to inappropriately dividing cells that should trigger cell death, but sometimes additional mutations occur that cause cells to ignore these messages. An internal process of natural selection occurs within the body and eventually mutations accumulate within cells to promote their own growth, creating a cancerous tumor that grows and invades various tissues of the body. Normally, a cell divides only in response to signals called growth factors and stops growing once in contact with surrounding cells and in response to growth-inhibitory signals. It usually then divides a limited number of times and dies, staying within the epithelium where it is unable to migrate to other organs. To become a cancer cell, a cell has to accumulate mutations in a number of genes (three to seven). A cancer cell can divide without growth factor and ignores inhibitory signals. Also, it is immortal and can grow indefinitely, even after it makes contact with neighboring cells. It may escape from the epithelium and ultimately from the primary tumor. Then, the escaped cell can cross the endothelium of a blood vessel and get transported by the bloodstream to colonize a new organ, forming deadly metastasis. Although there are some genetic predispositions in a small fraction of cancers, the major fraction is due to a set of new genetic mutations that originally appear and accumulate in one or a small number of cells that will divide to form the tumor and are not transmitted to the progeny (somatic mutations). The most frequent mutations are a loss of function of p53 protein, a tumor suppressor, or in the p53 pathway, and gain of function mutations in the Ras proteins, or in other oncogenes.", "title": "Genetic change" }, { "paragraph_id": 54, "text": "DNA can be manipulated in the laboratory. Restriction enzymes are commonly used enzymes that cut DNA at specific sequences, producing predictable fragments of DNA. DNA fragments can be visualized through use of gel electrophoresis, which separates fragments according to their length.", "title": "Genetic change" }, { "paragraph_id": 55, "text": "The use of ligation enzymes allows DNA fragments to be connected. By binding (\"ligating\") fragments of DNA together from different sources, researchers can create recombinant DNA, the DNA often associated with genetically modified organisms. Recombinant DNA is commonly used in the context of plasmids: short circular DNA molecules with a few genes on them. In the process known as molecular cloning, researchers can amplify the DNA fragments by inserting plasmids into bacteria and then culturing them on plates of agar (to isolate clones of bacteria cells). \"Cloning\" can also refer to the various means of creating cloned (\"clonal\") organisms.", "title": "Genetic change" }, { "paragraph_id": 56, "text": "DNA can also be amplified using a procedure called the polymerase chain reaction (PCR). By using specific short sequences of DNA, PCR can isolate and exponentially amplify a targeted region of DNA. Because it can amplify from extremely small amounts of DNA, PCR is also often used to detect the presence of specific DNA sequences.", "title": "Genetic change" }, { "paragraph_id": 57, "text": "DNA sequencing, one of the most fundamental technologies developed to study genetics, allows researchers to determine the sequence of nucleotides in DNA fragments. The technique of chain-termination sequencing, developed in 1977 by a team led by Frederick Sanger, is still routinely used to sequence DNA fragments. Using this technology, researchers have been able to study the molecular sequences associated with many human diseases.", "title": "Genetic change" }, { "paragraph_id": 58, "text": "As sequencing has become less expensive, researchers have sequenced the genomes of many organisms using a process called genome assembly, which uses computational tools to stitch together sequences from many different fragments. These technologies were used to sequence the human genome in the Human Genome Project completed in 2003. New high-throughput sequencing technologies are dramatically lowering the cost of DNA sequencing, with many researchers hoping to bring the cost of resequencing a human genome down to a thousand dollars.", "title": "Genetic change" }, { "paragraph_id": 59, "text": "Next-generation sequencing (or high-throughput sequencing) came about due to the ever-increasing demand for low-cost sequencing. These sequencing technologies allow the production of potentially millions of sequences concurrently. The large amount of sequence data available has created the subfield of genomics, research that uses computational tools to search for and analyze patterns in the full genomes of organisms. Genomics can also be considered a subfield of bioinformatics, which uses computational approaches to analyze large sets of biological data. A common problem to these fields of research is how to manage and share data that deals with human subject and personally identifiable information.", "title": "Genetic change" }, { "paragraph_id": 60, "text": "On 19 March 2015, a group of leading biologists urged a worldwide ban on clinical use of methods, particularly the use of CRISPR and zinc finger, to edit the human genome in a way that can be inherited. In April 2015, Chinese researchers reported results of basic research to edit the DNA of non-viable human embryos using CRISPR.", "title": "Society and culture" }, { "paragraph_id": 61, "text": "", "title": "External links" } ]
Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism, and within the context of a population. Genetics has given rise to a number of subfields, including molecular genetics, epigenetics and population genetics. Organisms studied within the broad field span the domains of life. Genetic processes work in combination with an organism's environment and experiences to influence development and behavior, often referred to as nature versus nurture. The intracellular or extracellular environment of a living cell or organism may increase or decrease gene transcription. A classic example is two seeds of genetically identical corn, one placed in a temperate climate and one in an arid climate. While the average height of the two corn stalks may be genetically determined to be equal, the one in the arid climate only grows to half the height of the one in the temperate climate due to lack of water and nutrients in its environment.
2001-10-10T18:55:08Z
2023-12-24T18:06:46Z
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https://en.wikipedia.org/wiki/Genetics
12,272
George Pappas
George Sotiros Pappas (born 1942) is a professor of philosophy at Ohio State University. Pappas specializes in epistemology, the history of early modern philosophy, philosophy of religion and metaphysics. He is of Greek and English origin. He is the author of the Stanford Encyclopedia of Philosophy entry on "Internalist versus Externalist" conceptions of epistemic justification. He was co-editor (with Marshall Swain) of Essays on Knowledge and Justification (1978), regarded as a key anthology of essays relating to the Gettier problem and used as a core text in undergraduate epistemology courses. Pappas is an editorial consultant of Berkeley Studies. Pappas is known to be a leading Berkeley scholar; his essay "Berkeley and Scepticism" was in 1993 awarded the International Berkeley Prize. Pappas is a regular participant of International Berkeley Conferences. At one such conference, celebrating the 300th anniversary of George Berkeley's birth, Pappas propounded a new approach to the relationship between Berkeley's anti-abstractionism and "esse est percipi" principle. On Pappas' reading, Berkeley's two theses — that there are no abstract ideas and that sensible objects must be perceived in order to exist — entail one another. Pappas' formulation of the relationship between these two propositions is ingenious and merits his verdict that it is a 'very exciting result' ... So far as I know, his thesis is original. Some writers, to be sure, have some close to suggesting that the first proposition is a necessary condition for the truth of the second, but I cannot think of a commentator who holds that it is both a necessary and sufficient condition. Pappas' interpretation of Berkeley's esse is percipi thesis has sparked much discussion. In 1989, the Garland Publishing Company brought out a 15-volume collection of major works on Berkeley; Pappas' paper "Abstract ideas and the 'esse is percipi' thesis" was included in the third volume, as it was considered to be a significant contribution to Berkeley scholarship. Pappas developed his treatment of Berkeley's "esse est percipi" principle to repudiate the "inherence interpretation of Berkeley", upon which Edwin E. Allaire, among others, elaborated. That account is put forward to answer an extremely perplexing question in the history of philosophy: Why did Berkeley embrace idealism, i. e., why did he hold that esse est percipi, that to be is to be perceived? (Hausman 1984, pp. 421–2) After emerging in the early 1960s, the "inherence account" attracted numerous proponents and became an influential element of contemporary Berkeley scholarship. In his paper "Ideas, minds, and Berkeley" Pappas revealed some discrepancies between fountain-head evidences and Allaire's approach to a reconstruction of Berkeley's idealism. Pappas' critical examination of the "inherence account" is greatly appreciated by Berkeley scholars. Pappas' penetrating remarks compelled Edwin B. Allaire to revise and improve his conception. Even those who share Allaire's account of Berkeley's idealism acknowledge Pappas' article to be "an excellent review and critique of the IA [inherence account]." In 2000, Pappas published his monograph Berkeley's thought in which some parts were based on earlier papers of his. While writings by A. A. Luce or Geoffrey Warnock are long outdated, Berkeley's thought is often included in lists of recommended literature on Berkeley's philosophy.
[ { "paragraph_id": 0, "text": "George Sotiros Pappas (born 1942) is a professor of philosophy at Ohio State University. Pappas specializes in epistemology, the history of early modern philosophy, philosophy of religion and metaphysics. He is of Greek and English origin.", "title": "" }, { "paragraph_id": 1, "text": "He is the author of the Stanford Encyclopedia of Philosophy entry on \"Internalist versus Externalist\" conceptions of epistemic justification.", "title": "" }, { "paragraph_id": 2, "text": "He was co-editor (with Marshall Swain) of Essays on Knowledge and Justification (1978), regarded as a key anthology of essays relating to the Gettier problem and used as a core text in undergraduate epistemology courses.", "title": "" }, { "paragraph_id": 3, "text": "Pappas is an editorial consultant of Berkeley Studies.", "title": "" }, { "paragraph_id": 4, "text": "Pappas is known to be a leading Berkeley scholar; his essay \"Berkeley and Scepticism\" was in 1993 awarded the International Berkeley Prize. Pappas is a regular participant of International Berkeley Conferences. At one such conference, celebrating the 300th anniversary of George Berkeley's birth, Pappas propounded a new approach to the relationship between Berkeley's anti-abstractionism and \"esse est percipi\" principle. On Pappas' reading, Berkeley's two theses — that there are no abstract ideas and that sensible objects must be perceived in order to exist — entail one another.", "title": "Studies in Berkeley's philosophy" }, { "paragraph_id": 5, "text": "Pappas' formulation of the relationship between these two propositions is ingenious and merits his verdict that it is a 'very exciting result' ... So far as I know, his thesis is original. Some writers, to be sure, have some close to suggesting that the first proposition is a necessary condition for the truth of the second, but I cannot think of a commentator who holds that it is both a necessary and sufficient condition.", "title": "Studies in Berkeley's philosophy" }, { "paragraph_id": 6, "text": "Pappas' interpretation of Berkeley's esse is percipi thesis has sparked much discussion. In 1989, the Garland Publishing Company brought out a 15-volume collection of major works on Berkeley; Pappas' paper \"Abstract ideas and the 'esse is percipi' thesis\" was included in the third volume, as it was considered to be a significant contribution to Berkeley scholarship.", "title": "Studies in Berkeley's philosophy" }, { "paragraph_id": 7, "text": "Pappas developed his treatment of Berkeley's \"esse est percipi\" principle to repudiate the \"inherence interpretation of Berkeley\", upon which Edwin E. Allaire, among others, elaborated.", "title": "Studies in Berkeley's philosophy" }, { "paragraph_id": 8, "text": "That account is put forward to answer an extremely perplexing question in the history of philosophy: Why did Berkeley embrace idealism, i. e., why did he hold that esse est percipi, that to be is to be perceived? (Hausman 1984, pp. 421–2)", "title": "Studies in Berkeley's philosophy" }, { "paragraph_id": 9, "text": "After emerging in the early 1960s, the \"inherence account\" attracted numerous proponents and became an influential element of contemporary Berkeley scholarship. In his paper \"Ideas, minds, and Berkeley\" Pappas revealed some discrepancies between fountain-head evidences and Allaire's approach to a reconstruction of Berkeley's idealism. Pappas' critical examination of the \"inherence account\" is greatly appreciated by Berkeley scholars. Pappas' penetrating remarks compelled Edwin B. Allaire to revise and improve his conception. Even those who share Allaire's account of Berkeley's idealism acknowledge Pappas' article to be \"an excellent review and critique of the IA [inherence account].\"", "title": "Studies in Berkeley's philosophy" }, { "paragraph_id": 10, "text": "In 2000, Pappas published his monograph Berkeley's thought in which some parts were based on earlier papers of his. While writings by A. A. Luce or Geoffrey Warnock are long outdated, Berkeley's thought is often included in lists of recommended literature on Berkeley's philosophy.", "title": "Studies in Berkeley's philosophy" } ]
George Sotiros Pappas is a professor of philosophy at Ohio State University. Pappas specializes in epistemology, the history of early modern philosophy, philosophy of religion and metaphysics. He is of Greek and English origin. He is the author of the Stanford Encyclopedia of Philosophy entry on "Internalist versus Externalist" conceptions of epistemic justification. He was co-editor of Essays on Knowledge and Justification (1978), regarded as a key anthology of essays relating to the Gettier problem and used as a core text in undergraduate epistemology courses. Pappas is an editorial consultant of Berkeley Studies.
2023-06-12T16:54:49Z
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https://en.wikipedia.org/wiki/George_Pappas
12,274
Guy de Maupassant
Henri René Albert Guy de Maupassant (UK: /ˈmoʊpæsɒ̃/, US: /ˈmoʊpəsɒnt, ˌmoʊpəˈsɒ̃/; French: [ɡi d(ə) mopasɑ̃]; 5 August 1850 – 6 July 1893) was a 19th-century French author, celebrated as a master of the short story, as well as a representative of the naturalist school, depicting human lives, destinies and social forces in disillusioned and often pessimistic terms. Maupassant was a protégé of Gustave Flaubert and his stories are characterized by economy of style and efficient, seemingly effortless dénouements. Many are set during the Franco-Prussian War of the 1870s, describing the futility of war and the innocent civilians who, caught up in events beyond their control, are permanently changed by their experiences. He wrote 300 short stories, six novels, three travel books, and one volume of verse. His first published story, "Boule de Suif" ("The Dumpling", 1880), is often considered his most famous work. Henri-René-Albert-Guy de Maupassant was born on 5 August 1850 at the late 16th-century Château de Miromesnil (near Dieppe in the Seine-Inférieure (now Seine-Maritime) Department, France), the elder son of Gustave de Maupassant (1821–99) and Laure Le Poittevin, whose family hailed from the prosperous bourgeoisie. His mother urged her husband when they married in 1846 to obtain the right to use the particule or form "de Maupassant" instead of "Maupassant" as his family name, in order to indicate noble birth. Gustave’s great-great-grandfather, Jean-Baptiste de Maupassant (1699–1774), conseiller-secrétaire to King Louis XV, had been ennobled by Emperor Francis I in 1752, and although his family were considered petite noblesse they had not yet received official recognition by the Kingdom of France. He then obtained from the Tribunal Civil of Rouen by royal decree dated 9 July 1846 the right to style himself "de Maupassant" instead of "Maupassant", being formally assumed as the family name before the birth of his children. When Maupassant was 11 and his brother Hervé was five, his mother, an independent-minded woman, risked social disgrace to obtain a legal separation from her husband, who was violent towards her. After the separation, Laure Le Poittevin kept custody of her two sons. In the absence of the Maupassant's father, his mother became the most influential figure in the young boy's life. She was an exceptionally well-read woman and was very fond of classical literature, particularly Shakespeare. Until the age of thirteen, Guy lived happily with his mother, at Étretat in Normandy. At the Villa des Verguies, between the sea and the luxuriant countryside, he grew very fond of fishing and of outdoor activities. When Guy reached the age of thirteen, his mother placed her two sons as day boarders in a private school, the Institution Leroy-Petit, in Rouen—the Institution Robineau of Maupassant's story La Question du Latin—for classical studies. From his early education, he retained a marked hostility to religion, and to judge from verses composed around this time, he deplored the ecclesiastical atmosphere, its ritual and discipline. Finding the place unbearable, he finally got himself expelled in his penultimate year. In 1867, while he was in junior high school, Maupassant met Gustave Flaubert at Croisset on the insistence of his mother. Next year, in autumn, he was sent to the Lycée Pierre-Corneille in Rouen where he proved a good scholar, indulging in poetry and taking a prominent part in theatricals. In October 1868, at the age of 18, he saved the famous poet Algernon Swinburne from drowning off the coast of Étretat. The Franco-Prussian War broke out soon after his graduation from college in 1870 and Maupassant volunteered to serve in the French Army without attending military academy as aspirant. In 1871, he left Normandy and moved to Paris, where he spent ten years as a clerk in the Navy Department. During this time his only recreation and relaxation was boating on the Seine on Sundays and holidays. Gustave Flaubert took him under his protection and acted as a kind of literary guardian to him, guiding his debut in journalism and literature. At Flaubert's home he met Émile Zola (1840–1902) and the Russian novelist Ivan Turgenev (1818–1883), as well as many of the proponents of the realist and naturalist schools. He wrote and himself played (1875) in a comedy - "À la feuille de rose, maison turque" - with Flaubert's blessing. In 1878, he was transferred to the Ministry of Public Instruction and became a contributing editor to several leading newspapers such as Le Figaro, Gil Blas, Le Gaulois and l'Écho de Paris. He devoted his spare time to writing novels and short stories. In 1880 he published what is considered his first masterpiece, "Boule de Suif", which met with instant and tremendous success. Flaubert characterized it as "a masterpiece that will endure". This, Maupassant's first piece of short fiction set during the Franco-Prussian War of 1870–71, was followed by short stories such as "Deux Amis", "Mother Savage", and "Mademoiselle Fifi". "The fear that haunted his restless brain day and night was already visible in his eyes, I for one considered him then as a doomed man. I knew that the subtle poison of his own Boule de Suif had already begun its work of destruction in this magnificent brain. Did he know it himself? I often thought he did. The MS. of his Sur L'Eau was lying on the table between us, he had just read me a few chapters, the best thing he had ever written I thought. He was still producing with feverish haste one masterpiece after another, slashing his excited brain with champagne, ether and drugs of all sorts. Women after women in endless succession hastened the destruction, women recruited from all quarters... actresses, ballet-dancers, midinettes, grisettes, common prostitutes-- 'le taureau triste' his friends used to call him. The decade from 1880 to 1891 was the most fertile period of Maupassant's life. Made famous by his first short story, he worked methodically and produced two or sometimes four volumes annually. His talent and practical business sense made him wealthy. In 1881 he published his first volume of short stories under the title of La Maison Tellier; it reached its twelfth edition within two years. In 1883 he finished his first novel, Une Vie (translated into English as A Woman's Life), 25,000 copies of which were sold in less than a year. "Bed 29", published in 1884, is a social and political satirical collection of some of his best short stories, including the titular story which is shocking and scandalous, even by modern standards. His editor, Victor Havard, commissioned him to write more stories, and Maupassant continued to produce them efficiently and frequently. His second novel, Bel-Ami, which came out in 1885, had thirty-seven printings in four months. Then, he wrote what many consider his greatest novel, Pierre et Jean (1888). With a natural aversion to society, he loved retirement, solitude, and meditation. He traveled extensively in Algeria, Italy, England, Brittany, Sicily, and the Auvergne, and from each voyage brought back a new volume. He cruised on his private yacht Bel-Ami, named after his novel. This life did not prevent him from making friends among the literary celebrities of his day: Alexandre Dumas, fils had a paternal affection for him; at Aix-les-Bains he met Hippolyte Taine (1828–1893) and became devoted to the philosopher-historian. Flaubert continued to act as his literary godfather. His friendship with the Goncourts was of short duration; his frank and practical nature reacted against the ambiance of gossip, scandal, duplicity, and invidious criticism that the two brothers had created around them in the guise of an 18th-century style salon. Maupassant was one of a fair number of 19th-century Parisians (including Charles Gounod, Alexandre Dumas, fils, and Charles Garnier) who did not care for the Eiffel Tower (erected 1887/89). He often ate lunch in the restaurant at its base, not out of preference for the food but because only there could he avoid seeing its otherwise unavoidable profile. He and forty-six other Parisian literary and artistic notables attached their names to an elaborately irate letter of protest against the tower's construction, written to the Minister of Public Works, and published on 14 February 1887. Declining appointment to the Légion d'honneur and election to the Académie française, Maupassant also wrote under several pseudonyms, including "Joseph Prunier", "Guy de Valmont", and "Maufrigneuse" (which he used from 1881 to 1885). In his later years he developed a constant desire for solitude, an obsession for self-preservation, and a fear of death and paranoia of persecution caused by the syphilis he had contracted in his youth. It has been suggested that his brother, Hervé, also suffered from syphilis and that the disease may have been congenital. On 2 January 1892, Maupassant tried to commit suicide by cutting his throat; he was committed to the private asylum of Esprit Blanche at Passy, in Paris, where he died on 6 July 1893 from syphilis. Maupassant penned his own epitaph: "I have coveted everything and taken pleasure in nothing." He is buried in Section 26 of the Montparnasse Cemetery, Paris. Maupassant is considered a father of the modern short story. Literary theorist Kornelije Kvas wrote that along "with Chekhov, Maupassant is the greatest master of the short story in world literature. He is not a naturalist like Zola; to him, physiological processes do not constitute the basis of human actions, although the influence of the environment is manifested in his prose. In many respects, Maupassant's naturalism is Schopenhauerian anthropological pessimism, as he is often harsh and merciless when it comes to depicting human nature. He owes most to Flaubert, from whom he learned to use a concise and measured style and to establish a distance towards the object of narration." He delighted in clever plotting, and served as a model for Somerset Maugham and O. Henry in this respect. One of his famous short stories, "The Necklace", was imitated with a twist by Maugham ("Mr Know-All", "A String of Beads"). Henry James's "Paste" adapts another story of his with a similar title, "The Jewels". Taking his cue from Balzac, Maupassant wrote comfortably in both the high-realist and fantastic modes; stories and novels such as "L'Héritage" and Bel-Ami aim to recreate Third Republic France in a realistic way, whereas many of the short stories (notably "Le Horla" and "Qui sait?") describe apparently supernatural phenomena. The supernatural in Maupassant, however, is often implicitly a symptom of the protagonists' troubled minds; Maupassant was fascinated by the burgeoning discipline of psychiatry, and attended the public lectures of Jean-Martin Charcot between 1885 and 1886. Leo Tolstoy used Maupassant as the subject for one of his essays on art: The Works of Guy de Maupassant. His stories are second only to Shakespeare in their inspiration of movie adaptations with films ranging from Stagecoach, Oyuki the Virgin and Masculine Feminine. Friedrich Nietzsche's autobiography mentions him in the following text: "I cannot at all conceive in which century of history one could haul together such inquisitive and at the same time delicate psychologists as one can in contemporary Paris: I can name as a sample – for their number is by no means small, ... or to pick out one of the stronger race, a genuine Latin to whom I am particularly attached, Guy de Maupassant." William Saroyan wrote a short story about Maupassant in his 1971 book, Letters from 74 rue Taitbout or Don't Go But If You Must Say Hello To Everybody. Isaac Babel wrote a short story about him, "Guy de Maupassant." It appears in The Collected Stories of Isaac Babel and in the story anthology You’ve Got To Read This: Contemporary American Writers Introduce Stories that Held Them in Awe. Gene Roddenberry, in an early draft for The Questor Tapes, wrote a scene in which the android Questor employs Maupassant's theory that, "the human female will open her mind to a man to whom she has opened other channels of communications." In the script Questor copulates with a woman to obtain information that she is reluctant to impart. Due to complaints from NBC executives, this scene was never filmed. Michel Drach directed and co-wrote a 1982 French biographical film: Guy de Maupassant. Claude Brasseur stars as the titular character. Several of Maupassant's short stories, including "La Peur" and "The Necklace", were adapted as episodes of the 1986 Indian anthology television series Katha Sagar.
[ { "paragraph_id": 0, "text": "Henri René Albert Guy de Maupassant (UK: /ˈmoʊpæsɒ̃/, US: /ˈmoʊpəsɒnt, ˌmoʊpəˈsɒ̃/; French: [ɡi d(ə) mopasɑ̃]; 5 August 1850 – 6 July 1893) was a 19th-century French author, celebrated as a master of the short story, as well as a representative of the naturalist school, depicting human lives, destinies and social forces in disillusioned and often pessimistic terms.", "title": "" }, { "paragraph_id": 1, "text": "Maupassant was a protégé of Gustave Flaubert and his stories are characterized by economy of style and efficient, seemingly effortless dénouements. Many are set during the Franco-Prussian War of the 1870s, describing the futility of war and the innocent civilians who, caught up in events beyond their control, are permanently changed by their experiences. He wrote 300 short stories, six novels, three travel books, and one volume of verse. His first published story, \"Boule de Suif\" (\"The Dumpling\", 1880), is often considered his most famous work.", "title": "" }, { "paragraph_id": 2, "text": "Henri-René-Albert-Guy de Maupassant was born on 5 August 1850 at the late 16th-century Château de Miromesnil (near Dieppe in the Seine-Inférieure (now Seine-Maritime) Department, France), the elder son of Gustave de Maupassant (1821–99) and Laure Le Poittevin, whose family hailed from the prosperous bourgeoisie. His mother urged her husband when they married in 1846 to obtain the right to use the particule or form \"de Maupassant\" instead of \"Maupassant\" as his family name, in order to indicate noble birth. Gustave’s great-great-grandfather, Jean-Baptiste de Maupassant (1699–1774), conseiller-secrétaire to King Louis XV, had been ennobled by Emperor Francis I in 1752, and although his family were considered petite noblesse they had not yet received official recognition by the Kingdom of France. He then obtained from the Tribunal Civil of Rouen by royal decree dated 9 July 1846 the right to style himself \"de Maupassant\" instead of \"Maupassant\", being formally assumed as the family name before the birth of his children.", "title": "Biography" }, { "paragraph_id": 3, "text": "When Maupassant was 11 and his brother Hervé was five, his mother, an independent-minded woman, risked social disgrace to obtain a legal separation from her husband, who was violent towards her.", "title": "Biography" }, { "paragraph_id": 4, "text": "After the separation, Laure Le Poittevin kept custody of her two sons. In the absence of the Maupassant's father, his mother became the most influential figure in the young boy's life. She was an exceptionally well-read woman and was very fond of classical literature, particularly Shakespeare. Until the age of thirteen, Guy lived happily with his mother, at Étretat in Normandy. At the Villa des Verguies, between the sea and the luxuriant countryside, he grew very fond of fishing and of outdoor activities. When Guy reached the age of thirteen, his mother placed her two sons as day boarders in a private school, the Institution Leroy-Petit, in Rouen—the Institution Robineau of Maupassant's story La Question du Latin—for classical studies. From his early education, he retained a marked hostility to religion, and to judge from verses composed around this time, he deplored the ecclesiastical atmosphere, its ritual and discipline. Finding the place unbearable, he finally got himself expelled in his penultimate year.", "title": "Biography" }, { "paragraph_id": 5, "text": "In 1867, while he was in junior high school, Maupassant met Gustave Flaubert at Croisset on the insistence of his mother. Next year, in autumn, he was sent to the Lycée Pierre-Corneille in Rouen where he proved a good scholar, indulging in poetry and taking a prominent part in theatricals. In October 1868, at the age of 18, he saved the famous poet Algernon Swinburne from drowning off the coast of Étretat.", "title": "Biography" }, { "paragraph_id": 6, "text": "The Franco-Prussian War broke out soon after his graduation from college in 1870 and Maupassant volunteered to serve in the French Army without attending military academy as aspirant. In 1871, he left Normandy and moved to Paris, where he spent ten years as a clerk in the Navy Department. During this time his only recreation and relaxation was boating on the Seine on Sundays and holidays.", "title": "Biography" }, { "paragraph_id": 7, "text": "Gustave Flaubert took him under his protection and acted as a kind of literary guardian to him, guiding his debut in journalism and literature. At Flaubert's home he met Émile Zola (1840–1902) and the Russian novelist Ivan Turgenev (1818–1883), as well as many of the proponents of the realist and naturalist schools. He wrote and himself played (1875) in a comedy - \"À la feuille de rose, maison turque\" - with Flaubert's blessing.", "title": "Biography" }, { "paragraph_id": 8, "text": "In 1878, he was transferred to the Ministry of Public Instruction and became a contributing editor to several leading newspapers such as Le Figaro, Gil Blas, Le Gaulois and l'Écho de Paris. He devoted his spare time to writing novels and short stories.", "title": "Biography" }, { "paragraph_id": 9, "text": "In 1880 he published what is considered his first masterpiece, \"Boule de Suif\", which met with instant and tremendous success. Flaubert characterized it as \"a masterpiece that will endure\". This, Maupassant's first piece of short fiction set during the Franco-Prussian War of 1870–71, was followed by short stories such as \"Deux Amis\", \"Mother Savage\", and \"Mademoiselle Fifi\".", "title": "Biography" }, { "paragraph_id": 10, "text": "\"The fear that haunted his restless brain day and night was already visible in his eyes, I for one considered him then as a doomed man. I knew that the subtle poison of his own Boule de Suif had already begun its work of destruction in this magnificent brain. Did he know it himself? I often thought he did. The MS. of his Sur L'Eau was lying on the table between us, he had just read me a few chapters, the best thing he had ever written I thought. He was still producing with feverish haste one masterpiece after another, slashing his excited brain with champagne, ether and drugs of all sorts. Women after women in endless succession hastened the destruction, women recruited from all quarters... actresses, ballet-dancers, midinettes, grisettes, common prostitutes-- 'le taureau triste' his friends used to call him.", "title": "Biography" }, { "paragraph_id": 11, "text": "The decade from 1880 to 1891 was the most fertile period of Maupassant's life. Made famous by his first short story, he worked methodically and produced two or sometimes four volumes annually. His talent and practical business sense made him wealthy.", "title": "Biography" }, { "paragraph_id": 12, "text": "In 1881 he published his first volume of short stories under the title of La Maison Tellier; it reached its twelfth edition within two years. In 1883 he finished his first novel, Une Vie (translated into English as A Woman's Life), 25,000 copies of which were sold in less than a year.", "title": "Biography" }, { "paragraph_id": 13, "text": "\"Bed 29\", published in 1884, is a social and political satirical collection of some of his best short stories, including the titular story which is shocking and scandalous, even by modern standards.", "title": "Biography" }, { "paragraph_id": 14, "text": "His editor, Victor Havard, commissioned him to write more stories, and Maupassant continued to produce them efficiently and frequently. His second novel, Bel-Ami, which came out in 1885, had thirty-seven printings in four months. Then, he wrote what many consider his greatest novel, Pierre et Jean (1888).", "title": "Biography" }, { "paragraph_id": 15, "text": "With a natural aversion to society, he loved retirement, solitude, and meditation. He traveled extensively in Algeria, Italy, England, Brittany, Sicily, and the Auvergne, and from each voyage brought back a new volume. He cruised on his private yacht Bel-Ami, named after his novel. This life did not prevent him from making friends among the literary celebrities of his day: Alexandre Dumas, fils had a paternal affection for him; at Aix-les-Bains he met Hippolyte Taine (1828–1893) and became devoted to the philosopher-historian.", "title": "Biography" }, { "paragraph_id": 16, "text": "Flaubert continued to act as his literary godfather. His friendship with the Goncourts was of short duration; his frank and practical nature reacted against the ambiance of gossip, scandal, duplicity, and invidious criticism that the two brothers had created around them in the guise of an 18th-century style salon.", "title": "Biography" }, { "paragraph_id": 17, "text": "Maupassant was one of a fair number of 19th-century Parisians (including Charles Gounod, Alexandre Dumas, fils, and Charles Garnier) who did not care for the Eiffel Tower (erected 1887/89). He often ate lunch in the restaurant at its base, not out of preference for the food but because only there could he avoid seeing its otherwise unavoidable profile. He and forty-six other Parisian literary and artistic notables attached their names to an elaborately irate letter of protest against the tower's construction, written to the Minister of Public Works, and published on 14 February 1887.", "title": "Biography" }, { "paragraph_id": 18, "text": "Declining appointment to the Légion d'honneur and election to the Académie française, Maupassant also wrote under several pseudonyms, including \"Joseph Prunier\", \"Guy de Valmont\", and \"Maufrigneuse\" (which he used from 1881 to 1885).", "title": "Biography" }, { "paragraph_id": 19, "text": "In his later years he developed a constant desire for solitude, an obsession for self-preservation, and a fear of death and paranoia of persecution caused by the syphilis he had contracted in his youth. It has been suggested that his brother, Hervé, also suffered from syphilis and that the disease may have been congenital. On 2 January 1892, Maupassant tried to commit suicide by cutting his throat; he was committed to the private asylum of Esprit Blanche at Passy, in Paris, where he died on 6 July 1893 from syphilis.", "title": "Biography" }, { "paragraph_id": 20, "text": "Maupassant penned his own epitaph: \"I have coveted everything and taken pleasure in nothing.\" He is buried in Section 26 of the Montparnasse Cemetery, Paris.", "title": "Biography" }, { "paragraph_id": 21, "text": "Maupassant is considered a father of the modern short story. Literary theorist Kornelije Kvas wrote that along \"with Chekhov, Maupassant is the greatest master of the short story in world literature. He is not a naturalist like Zola; to him, physiological processes do not constitute the basis of human actions, although the influence of the environment is manifested in his prose. In many respects, Maupassant's naturalism is Schopenhauerian anthropological pessimism, as he is often harsh and merciless when it comes to depicting human nature. He owes most to Flaubert, from whom he learned to use a concise and measured style and to establish a distance towards the object of narration.\" He delighted in clever plotting, and served as a model for Somerset Maugham and O. Henry in this respect. One of his famous short stories, \"The Necklace\", was imitated with a twist by Maugham (\"Mr Know-All\", \"A String of Beads\"). Henry James's \"Paste\" adapts another story of his with a similar title, \"The Jewels\".", "title": "Significance" }, { "paragraph_id": 22, "text": "Taking his cue from Balzac, Maupassant wrote comfortably in both the high-realist and fantastic modes; stories and novels such as \"L'Héritage\" and Bel-Ami aim to recreate Third Republic France in a realistic way, whereas many of the short stories (notably \"Le Horla\" and \"Qui sait?\") describe apparently supernatural phenomena.", "title": "Significance" }, { "paragraph_id": 23, "text": "The supernatural in Maupassant, however, is often implicitly a symptom of the protagonists' troubled minds; Maupassant was fascinated by the burgeoning discipline of psychiatry, and attended the public lectures of Jean-Martin Charcot between 1885 and 1886.", "title": "Significance" }, { "paragraph_id": 24, "text": "Leo Tolstoy used Maupassant as the subject for one of his essays on art: The Works of Guy de Maupassant. His stories are second only to Shakespeare in their inspiration of movie adaptations with films ranging from Stagecoach, Oyuki the Virgin and Masculine Feminine.", "title": "Legacy" }, { "paragraph_id": 25, "text": "Friedrich Nietzsche's autobiography mentions him in the following text:", "title": "Legacy" }, { "paragraph_id": 26, "text": "\"I cannot at all conceive in which century of history one could haul together such inquisitive and at the same time delicate psychologists as one can in contemporary Paris: I can name as a sample – for their number is by no means small, ... or to pick out one of the stronger race, a genuine Latin to whom I am particularly attached, Guy de Maupassant.\"", "title": "Legacy" }, { "paragraph_id": 27, "text": "William Saroyan wrote a short story about Maupassant in his 1971 book, Letters from 74 rue Taitbout or Don't Go But If You Must Say Hello To Everybody.", "title": "Legacy" }, { "paragraph_id": 28, "text": "Isaac Babel wrote a short story about him, \"Guy de Maupassant.\" It appears in The Collected Stories of Isaac Babel and in the story anthology You’ve Got To Read This: Contemporary American Writers Introduce Stories that Held Them in Awe.", "title": "Legacy" }, { "paragraph_id": 29, "text": "Gene Roddenberry, in an early draft for The Questor Tapes, wrote a scene in which the android Questor employs Maupassant's theory that, \"the human female will open her mind to a man to whom she has opened other channels of communications.\" In the script Questor copulates with a woman to obtain information that she is reluctant to impart. Due to complaints from NBC executives, this scene was never filmed.", "title": "Legacy" }, { "paragraph_id": 30, "text": "Michel Drach directed and co-wrote a 1982 French biographical film: Guy de Maupassant. Claude Brasseur stars as the titular character.", "title": "Legacy" }, { "paragraph_id": 31, "text": "Several of Maupassant's short stories, including \"La Peur\" and \"The Necklace\", were adapted as episodes of the 1986 Indian anthology television series Katha Sagar.", "title": "Legacy" } ]
Henri René Albert Guy de Maupassant was a 19th-century French author, celebrated as a master of the short story, as well as a representative of the naturalist school, depicting human lives, destinies and social forces in disillusioned and often pessimistic terms. Maupassant was a protégé of Gustave Flaubert and his stories are characterized by economy of style and efficient, seemingly effortless dénouements. Many are set during the Franco-Prussian War of the 1870s, describing the futility of war and the innocent civilians who, caught up in events beyond their control, are permanently changed by their experiences. He wrote 300 short stories, six novels, three travel books, and one volume of verse. His first published story, "Boule de Suif", is often considered his most famous work.
2001-05-26T19:04:54Z
2023-12-10T03:04:18Z
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https://en.wikipedia.org/wiki/Guy_de_Maupassant
12,276
Gheorghe Hagi
Gheorghe Hagi (Romanian pronunciation: [ˈɡe̯orɡe ˈhad͡ʒʲ] ; born 5 February 1965) is a Romanian professional football manager and former player, who is currently the owner and manager of Liga I club Farul Constanța. Deployed as an attacking midfielder, Hagi was considered one of the best players in the world during the 1980s and '90s, and is regarded by many as the greatest Romanian footballer of all time. Fans of Turkish club Galatasaray, with whom Hagi ended his career, called him "Comandante" ("The Commander"), while he was known as "Regele" ("The King") to Romanian supporters. Nicknamed "The Maradona of the Carpathians", he was a creative advanced playmaker renowned for his dribbling, technique, vision, passing and shooting. After starting his playing career in Romania, with Farul Constanța, and subsequently featuring for Sportul Studențesc and Steaua București, he later also had spells in Spain with Real Madrid and FC Barcelona, Italy with Brescia, and Turkey, with Galatasaray; as such, Hagi is one of the few footballers to have played for both Spanish rival clubs Real Madrid and Barcelona. Throughout his club career, he won numerous titles while playing in four different countries: he won three Romanian League titles, two Cupa României titles, and the European Super Cup with Steaua București – also reaching the final of the 1988–89 European Cup –, a Supercopa de España title with Real Madrid, the Anglo-Italian Cup with Brescia, another Supercopa de España title with Barcelona, and four Süper Lig titles, two Turkish Cups, two Turkish Super Cups, the UEFA Cup, and the UEFA Super Cup with Galatasaray. At international level, Hagi played for the Romania national team in three FIFA World Cups, in 1990, 1994 (where he was named in the World Cup All-Star Team after helping his nation to the quarter-finals of the tournament) and 1998; as well as in three UEFA European Championships, in 1984, 1996 and 2000. He won a total of 124 caps for Romania between 1983 and 2000, making him the second-most capped Romanian player of all time, behind only Dorinel Munteanu; he is also the joint all-time leading goalscorer of the Romania national side (alongside Adrian Mutu) with 35 goals. Hagi is considered a hero both in his homeland and in Turkey. He was named Romanian Footballer of the Year a record seven times, and is regarded as one of the best football players of his generation. Hagi was nominated six times for the Ballon d'Or, his best performance being a 4th place in 1994. In November 2003, to celebrate UEFA's Jubilee, Hagi was selected as the Golden Player of Romania by the Romanian Football Federation as their most outstanding player of the past 50 years. In 2004, he was named by Pelé as one of the 125 Greatest Living Footballers at a FIFA Awards Ceremony. In 1999, he was ranked at number 25 in World Soccer Magazine's list of the 100 greatest players of the 20th century. Following his retirement in 2001, Hagi pursued a managerial career, coaching the Romania national team, as well as clubs in both Romania and Turkey, namely Bursaspor, Galatasaray, Politehnica Timișoara, Steaua București, Viitorul Constanța and Farul Constanța. In 2009, he founded Romanian club Viitorul Constanța, which he has coached between 2014 and 2020. Hagi also established his namesake football academy, one of the largest ones in Southeastern Europe. Hagi was born to Chirata Hagi, his mother, and Iancu Hagi, his father. Hagi's grandfather was one of 40,000 ethnic Aromanians who fled Greece to Romania. He set up home in the village of Săcele, near Constanța on the Black Sea coast. Hagi has fond memories of his grandfather who, like many Aromanians, was a shepherd. According to him, “I was proud when he, who was called Gheorghe like me, asked me to go and spend the whole day with him minding the sheep,” he said. “I loved to eat cheese and tomatoes with him, and that is still my favorite food today.” He also said "ambition is the main quality of the Aromanians". Hagi started his career playing for the youth teams of FC Constanța under the guidance of coach Iosif Bükössy in the 1970s. He was selected by the Romanian Football Federation to join the squad of Luceafărul București in 1980, where he remained for two years. In 1982, he returned to FC Constanța, making his Divizia A debut under coach Emanoil Hașoti in a 3–0 loss against SC Bacău, but one year later, aged 18, he was prepared to make the step up to play for a top team. He was originally directed to Universitatea Craiova, but chose Sportul Studențesc of Bucharest instead. In late 1986, Hagi transferred to Steaua București as the team prepared for the European Super Cup final against Dynamo Kyiv. The original contract was for a one-game loan only, the final. However, after winning the trophy, in which Hagi scored the only goal of the match from a free kick, Steaua did not want to release him back to Sportul Studențesc and retained him. During his Steaua years (1987–1990), Hagi played 97 Liga I games, scoring 76 goals, and netted 98 goals in total in 107 appearances for the club across all competitions. With the club, he reached the European Cup semi-final in 1988, and the final in the following year, while Hagi finished as one of the competition's top scorers in the former edition of the tournament. Hagi also won three consecutive league and Cup doubles with Steaua between 1987 and 1989. His strong performances had him linked with Arrigo Sacchi's Milan, fellow Serie A club Juventus, and German side Bayern Munich, but Nicolae Ceaușescu's communist government rejected any offer. After impressing at the 1990 FIFA World Cup, Hagi was signed by Spanish club Real Madrid on 27 June that same year; the La Liga side paid $3.5 million to Steaua București in order to acquire him. Hagi played two seasons with Real Madrid, which were largely unsuccessful, scoring 20 goals in 84 games, and only winning the Supercopa de España; some of his most memorable performances for the club included a hat-trick in a 5–0 home win over Athletic Bilbao at the Santiago Bernabéu Stadium, on match-day 22 of the 1991–92 season, and a 40-yard lob against Osasuna during the same campaign. He also helped Los Blancos to reach the 1991–92 UEFA Cup semi-finals, contributing with 3 goals scored in 10 appearances. He was subsequently sold to Italian side Brescia for 8 billion lira in 1992. Hagi began the 1992–93 season with Brescia in Serie A, but after his first season, the club was relegated to Serie B. The following season, Hagi helped the club win the Anglo-Italian Cup, with Brescia defeating Notts County 1–0 in the final at Wembley, and also helped the team finish third in Serie B and earn promotion back to Serie A. After performing memorably during the 1994 World Cup, Hagi returned to Spain, and was signed by defending La Liga champions Barcelona for £2 million, where he immediately won his second Supercopa de España title; however, he later struggled to gain playing time at the club under manager Johan Cruyff, but managed to give his contribution by scoring 3 goals in 5 matches when Barça reached the semi-finals in the 1995–96 UEFA Cup season. After two years at Barça, Hagi signed for Turkish club Galatasaray in 1996, at the age of 31. He had been the subject of a competing transfer offer from São Paulo FC. Although in the twilight of his career, at Galatasaray, he was extremely successful, and became highly popular among the Turkish supporters, due to his excellent performances for the club. Hagi was an important member of the Galatasaray team that went on to win four consecutive league titles between 1996 and 2000. In 2000, at age 35, Hagi had one of the best seasons of his career, winning every possible major title with Galatasaray that season. Most significantly, Hagi captained the club to win the 1999–2000 UEFA Cup after defeating Arsenal on penalties in the final, following a 0–0 draw; during the match, Hagi was sent off in extra-time for punching Arsenal captain Tony Adams. Consequently, Galatasaray became the first Turkish club to win a UEFA club competition title. The team's UEFA Cup triumph was immediately followed by the UEFA Super Cup title, with a historic 2–1 win against Hagi's former club Real Madrid in extra-time. The mass hysteria caused by these wins in Istanbul raised Hagi's popularity with the fans even further, and prompted former France international Luis Fernández to say, "Hagi is like wine, the older it gets, the better it is." When he retired in 2001, Hagi was one of the most popular players in both Turkey and Romania. Hagi drew praise from the Galatasaray supporters for his performances during his time with the club, who adopted the chant "I Love You Hagi" in his honour. While coaching Galatasaray in 2004, he briefly came out of retirement to play in the testimonial game for his former teammate Suat Kaya against Turkey XI. Hagi played the first half wearing his iconic shirt number 10 and helped Galatasaray win 2–1. Gheorghe Hagi made his debut for Romania on 10 August 1983 at the age of 18, under coach Mircea Lucescu who used him in all the minutes of friendly which ended 0–0 against Norway, played on the Ullevaal stadium from Oslo. He scored his first international goal against Northern Ireland in 1984. The following year, he was made captain for the first time, in a World Cup qualifier against the same opponent. Although Romania failed to qualify for the 1986 World Cup, Hagi later took part at the 1990 World Cup, where he helped the team reach the round of 16, before Republic of Ireland ended their run, after winning the resulting penalty shoot-out following a 0–0 draw, with Hagi netting Romania's first spot kick. Four years later, he led the Romanian team to its best ever international performance at the 1994 World Cup, as they reached the quarter-finals, only to lose to Sweden in a penalty shoot-out once again. Hagi scored three times in the tournament, including a memorable goal in their 3–2 surprise defeat of South American powerhouse and previous runners-up Argentina. In the first of Romania's group stage matches, a 3–1 win against Colombia, Hagi provided two assists and scored one of the most memorable goals of the tournament, curling in a 40-yard lob over Colombian goalkeeper Óscar Córdoba who was caught out of position; the goal was later voted the fifth greatest World Cup goal in a FIFAworldcup.com poll. Hagi was named in the Team of the Tournament for his performances. Four years later, he captained Romania at the 1998 World Cup; Hagi initially communicated that France '98 would be his final tournament. Romania topped their group, which featured England, Colombia, and Tunisia, and reached the round of 16, before being eliminated by Croatia. After the tournament, Hagi retired from the national team, only to change his mind after a few months and participate in UEFA Euro 2000, during which he was sent off in the 2–0 quarter-final loss against eventual runners-up Italy; this was his final international appearance. Hagi retired from professional football in 2001, at the age of 36; that year, he was given a send-off in a testimonial game on 24 April, called "Gala Hagi," featuring a team of Romanian All-Stars against a team of international All-Stars. At the time of his retirement, his 124 caps for his country were a national record, which has since been surpassed by Dorinel Munteanu. He currently still holds the record of most goals scored for the Romania national team, alongside Adrian Mutu, with 35. In 2001, Hagi was named the manager of the Romania national team, replacing Ladislau Bölöni, who left the squad to coach Sporting Clube de Portugal. After failing to qualify the team for the World Cup, Hagi was sacked. His only notable achievement during the six months as Romania's manager was the win in Budapest against Hungary. In 2003, Hagi took over as coach of Turkish Süper Lig side Bursaspor, but left the club after a disappointing start to the season. Hagi then became manager of Galatasaray in 2004, leading the team to the Turkish Cup in 2005 final with 5–1 as a score against fierce rivals Fenerbahçe. His contract, however, was not renewed since his team was not able to win 2004–05 Süper Lig title over Fenerbahçe during the centennial of the club. Steaua București sought to hire Hagi in the summer of 2005, but Hagi's requested wage could not be met by the Romanian champions, and he became manager of Politehnica Timișoara instead. However, after a string of poor results and disagreements with management, he left the club after a few months. Constanța's main stadium used to bear his name, but the name was changed after Hagi signed with Politehnica Timișoara. From June to September 2007, Hagi coached FC Steaua București, had a mediocre start in the internal championship mainly due to the large number of unavailable injured players, and managed to qualify the team for the second time in line to the UEFA Champions League group stages, passing two qualifying rounds. He resigned due to a long series of conflicts with club owner Gigi Becali, which also happens to be his godson. The main reason for resigning was the owner's policy of imposing players, making the team's strategy and threats. Hagi's resigned mere hours after FC Steaua's first Champions League match away against Slavia Prague, a 2–1 loss. After Frank Rijkaard was sacked as coach, Hagi signed a one and a half-year contract with Galatasaray on 21 October 2010. His official presentation was held on 22 October. His former teammate from Galatasaray Tugay Kerimoğlu assisted him in Istanbul, but he was sacked on 22 March 2011 after a series of poor results in the Süper Lig. In September 2014, Hagi appointed himself manager of Viitorul Constanța, in addition to being the owner and chairman of the club. Successfully avoiding relegation in his first season, Viitorul went on to be the season's wonder in the 2015–16 season, finishing the first half of the regular season on 3rd place, which led Hagi to be named Romania Coach of the Year. Eventually, Viitorul finished the regular season on 4th place, earning their first play-off qualification. Viitorul finished the play-off on 5th place, but qualified for the UEFA Europa League third qualifying round due to Dinamo București's insolvency. In their first European match, Viitorul were defeated 0–5 by Gent at the Ghelamco Arena, and were eliminated after a 0–0 home draw. Viitorul won their maiden league title, being 2016–17 Liga I champions after a 1–0 home victory over CFR Cluj; they finished the play-off with 44 points, same as FCSB, but on a better head-to-head record after a 3–1 home victory over FCSB. As a result, Hagi won his second Romania Coach of the Year award. A talented left-footed attacking midfielder, Hagi's playing style was frequently compared with Diego Maradona's throughout his career, due to his technical ability as well as his temperamental character and leadership; as a youth, he was mainly inspired by compatriots Anghel Iordănescu and Ion Dumitru. A quick, agile, creative, and mobile advanced playmaker, Hagi was also tactically versatile, and capable of playing in several midfield and offensive positions on either wing or through the middle, due to his ability with both feet, despite being naturally left-footed, although he had a preference for using his stronger foot; his preferred position was in a free role as a classic number 10, but he was also used as a second striker on occasion. Hagi was renowned in particular for his first touch and speed on the ball, as well as his timing, interpretation of space, bursts of acceleration and dribbling skills, which enabled him to get past defenders; he was also highly regarded for his vision and precise passing, although he was capable of both scoring and assisting goals, and was also an accurate finisher and set-piece taker, who had a penchant for scoring goals from powerful, bending long range strikes. Despite his small stature and slender build, Hagi possessed significant upper body strength, which, along with his control, aided him in protecting the ball from opponents, and allowed him to create space for himself or his teammates. Despite his skill and his reputation as one of the greatest number 10s of his generation, his career was marked by inconsistency at times, and he was also considered to be a controversial player, due to his rebellious and arrogant attitude, as well as his low work-rate, aggression, unsportsmanlike behaviour, and lack of discipline, which led him to have several disagreements and confrontations with his managers, opponents, and officials. Hagi is currently married to Marilena Hagi, with whom he had two children, Ianis and Kira. His son, Ianis Hagi, who is also a footballer, was born in 1998 in Istanbul, Turkey, when he was playing for Galatasaray SK. His daughter, Kira Hagi, who was born in 1996, in Barcelona, Catalonia, Spain, when he was playing for Barcelona, is an actress. Hagi was chosen to dub in Romanian the character Dagda in the animated movie Epic.
[ { "paragraph_id": 0, "text": "Gheorghe Hagi (Romanian pronunciation: [ˈɡe̯orɡe ˈhad͡ʒʲ] ; born 5 February 1965) is a Romanian professional football manager and former player, who is currently the owner and manager of Liga I club Farul Constanța. Deployed as an attacking midfielder, Hagi was considered one of the best players in the world during the 1980s and '90s, and is regarded by many as the greatest Romanian footballer of all time. Fans of Turkish club Galatasaray, with whom Hagi ended his career, called him \"Comandante\" (\"The Commander\"), while he was known as \"Regele\" (\"The King\") to Romanian supporters. Nicknamed \"The Maradona of the Carpathians\", he was a creative advanced playmaker renowned for his dribbling, technique, vision, passing and shooting.", "title": "" }, { "paragraph_id": 1, "text": "After starting his playing career in Romania, with Farul Constanța, and subsequently featuring for Sportul Studențesc and Steaua București, he later also had spells in Spain with Real Madrid and FC Barcelona, Italy with Brescia, and Turkey, with Galatasaray; as such, Hagi is one of the few footballers to have played for both Spanish rival clubs Real Madrid and Barcelona. Throughout his club career, he won numerous titles while playing in four different countries: he won three Romanian League titles, two Cupa României titles, and the European Super Cup with Steaua București – also reaching the final of the 1988–89 European Cup –, a Supercopa de España title with Real Madrid, the Anglo-Italian Cup with Brescia, another Supercopa de España title with Barcelona, and four Süper Lig titles, two Turkish Cups, two Turkish Super Cups, the UEFA Cup, and the UEFA Super Cup with Galatasaray.", "title": "" }, { "paragraph_id": 2, "text": "At international level, Hagi played for the Romania national team in three FIFA World Cups, in 1990, 1994 (where he was named in the World Cup All-Star Team after helping his nation to the quarter-finals of the tournament) and 1998; as well as in three UEFA European Championships, in 1984, 1996 and 2000. He won a total of 124 caps for Romania between 1983 and 2000, making him the second-most capped Romanian player of all time, behind only Dorinel Munteanu; he is also the joint all-time leading goalscorer of the Romania national side (alongside Adrian Mutu) with 35 goals.", "title": "" }, { "paragraph_id": 3, "text": "Hagi is considered a hero both in his homeland and in Turkey. He was named Romanian Footballer of the Year a record seven times, and is regarded as one of the best football players of his generation. Hagi was nominated six times for the Ballon d'Or, his best performance being a 4th place in 1994. In November 2003, to celebrate UEFA's Jubilee, Hagi was selected as the Golden Player of Romania by the Romanian Football Federation as their most outstanding player of the past 50 years. In 2004, he was named by Pelé as one of the 125 Greatest Living Footballers at a FIFA Awards Ceremony. In 1999, he was ranked at number 25 in World Soccer Magazine's list of the 100 greatest players of the 20th century.", "title": "" }, { "paragraph_id": 4, "text": "Following his retirement in 2001, Hagi pursued a managerial career, coaching the Romania national team, as well as clubs in both Romania and Turkey, namely Bursaspor, Galatasaray, Politehnica Timișoara, Steaua București, Viitorul Constanța and Farul Constanța. In 2009, he founded Romanian club Viitorul Constanța, which he has coached between 2014 and 2020. Hagi also established his namesake football academy, one of the largest ones in Southeastern Europe.", "title": "" }, { "paragraph_id": 5, "text": "Hagi was born to Chirata Hagi, his mother, and Iancu Hagi, his father. Hagi's grandfather was one of 40,000 ethnic Aromanians who fled Greece to Romania. He set up home in the village of Săcele, near Constanța on the Black Sea coast. Hagi has fond memories of his grandfather who, like many Aromanians, was a shepherd. According to him, “I was proud when he, who was called Gheorghe like me, asked me to go and spend the whole day with him minding the sheep,” he said. “I loved to eat cheese and tomatoes with him, and that is still my favorite food today.” He also said \"ambition is the main quality of the Aromanians\".", "title": "Early life" }, { "paragraph_id": 6, "text": "Hagi started his career playing for the youth teams of FC Constanța under the guidance of coach Iosif Bükössy in the 1970s. He was selected by the Romanian Football Federation to join the squad of Luceafărul București in 1980, where he remained for two years. In 1982, he returned to FC Constanța, making his Divizia A debut under coach Emanoil Hașoti in a 3–0 loss against SC Bacău, but one year later, aged 18, he was prepared to make the step up to play for a top team. He was originally directed to Universitatea Craiova, but chose Sportul Studențesc of Bucharest instead.", "title": "Club career" }, { "paragraph_id": 7, "text": "In late 1986, Hagi transferred to Steaua București as the team prepared for the European Super Cup final against Dynamo Kyiv. The original contract was for a one-game loan only, the final. However, after winning the trophy, in which Hagi scored the only goal of the match from a free kick, Steaua did not want to release him back to Sportul Studențesc and retained him. During his Steaua years (1987–1990), Hagi played 97 Liga I games, scoring 76 goals, and netted 98 goals in total in 107 appearances for the club across all competitions. With the club, he reached the European Cup semi-final in 1988, and the final in the following year, while Hagi finished as one of the competition's top scorers in the former edition of the tournament. Hagi also won three consecutive league and Cup doubles with Steaua between 1987 and 1989. His strong performances had him linked with Arrigo Sacchi's Milan, fellow Serie A club Juventus, and German side Bayern Munich, but Nicolae Ceaușescu's communist government rejected any offer.", "title": "Club career" }, { "paragraph_id": 8, "text": "After impressing at the 1990 FIFA World Cup, Hagi was signed by Spanish club Real Madrid on 27 June that same year; the La Liga side paid $3.5 million to Steaua București in order to acquire him. Hagi played two seasons with Real Madrid, which were largely unsuccessful, scoring 20 goals in 84 games, and only winning the Supercopa de España; some of his most memorable performances for the club included a hat-trick in a 5–0 home win over Athletic Bilbao at the Santiago Bernabéu Stadium, on match-day 22 of the 1991–92 season, and a 40-yard lob against Osasuna during the same campaign. He also helped Los Blancos to reach the 1991–92 UEFA Cup semi-finals, contributing with 3 goals scored in 10 appearances. He was subsequently sold to Italian side Brescia for 8 billion lira in 1992.", "title": "Club career" }, { "paragraph_id": 9, "text": "Hagi began the 1992–93 season with Brescia in Serie A, but after his first season, the club was relegated to Serie B. The following season, Hagi helped the club win the Anglo-Italian Cup, with Brescia defeating Notts County 1–0 in the final at Wembley, and also helped the team finish third in Serie B and earn promotion back to Serie A. After performing memorably during the 1994 World Cup, Hagi returned to Spain, and was signed by defending La Liga champions Barcelona for £2 million, where he immediately won his second Supercopa de España title; however, he later struggled to gain playing time at the club under manager Johan Cruyff, but managed to give his contribution by scoring 3 goals in 5 matches when Barça reached the semi-finals in the 1995–96 UEFA Cup season.", "title": "Club career" }, { "paragraph_id": 10, "text": "After two years at Barça, Hagi signed for Turkish club Galatasaray in 1996, at the age of 31. He had been the subject of a competing transfer offer from São Paulo FC. Although in the twilight of his career, at Galatasaray, he was extremely successful, and became highly popular among the Turkish supporters, due to his excellent performances for the club. Hagi was an important member of the Galatasaray team that went on to win four consecutive league titles between 1996 and 2000. In 2000, at age 35, Hagi had one of the best seasons of his career, winning every possible major title with Galatasaray that season. Most significantly, Hagi captained the club to win the 1999–2000 UEFA Cup after defeating Arsenal on penalties in the final, following a 0–0 draw; during the match, Hagi was sent off in extra-time for punching Arsenal captain Tony Adams. Consequently, Galatasaray became the first Turkish club to win a UEFA club competition title. The team's UEFA Cup triumph was immediately followed by the UEFA Super Cup title, with a historic 2–1 win against Hagi's former club Real Madrid in extra-time. The mass hysteria caused by these wins in Istanbul raised Hagi's popularity with the fans even further, and prompted former France international Luis Fernández to say, \"Hagi is like wine, the older it gets, the better it is.\"", "title": "Club career" }, { "paragraph_id": 11, "text": "When he retired in 2001, Hagi was one of the most popular players in both Turkey and Romania. Hagi drew praise from the Galatasaray supporters for his performances during his time with the club, who adopted the chant \"I Love You Hagi\" in his honour. While coaching Galatasaray in 2004, he briefly came out of retirement to play in the testimonial game for his former teammate Suat Kaya against Turkey XI. Hagi played the first half wearing his iconic shirt number 10 and helped Galatasaray win 2–1.", "title": "Club career" }, { "paragraph_id": 12, "text": "Gheorghe Hagi made his debut for Romania on 10 August 1983 at the age of 18, under coach Mircea Lucescu who used him in all the minutes of friendly which ended 0–0 against Norway, played on the Ullevaal stadium from Oslo. He scored his first international goal against Northern Ireland in 1984. The following year, he was made captain for the first time, in a World Cup qualifier against the same opponent.", "title": "International career" }, { "paragraph_id": 13, "text": "Although Romania failed to qualify for the 1986 World Cup, Hagi later took part at the 1990 World Cup, where he helped the team reach the round of 16, before Republic of Ireland ended their run, after winning the resulting penalty shoot-out following a 0–0 draw, with Hagi netting Romania's first spot kick. Four years later, he led the Romanian team to its best ever international performance at the 1994 World Cup, as they reached the quarter-finals, only to lose to Sweden in a penalty shoot-out once again. Hagi scored three times in the tournament, including a memorable goal in their 3–2 surprise defeat of South American powerhouse and previous runners-up Argentina. In the first of Romania's group stage matches, a 3–1 win against Colombia, Hagi provided two assists and scored one of the most memorable goals of the tournament, curling in a 40-yard lob over Colombian goalkeeper Óscar Córdoba who was caught out of position; the goal was later voted the fifth greatest World Cup goal in a FIFAworldcup.com poll. Hagi was named in the Team of the Tournament for his performances.", "title": "International career" }, { "paragraph_id": 14, "text": "Four years later, he captained Romania at the 1998 World Cup; Hagi initially communicated that France '98 would be his final tournament. Romania topped their group, which featured England, Colombia, and Tunisia, and reached the round of 16, before being eliminated by Croatia. After the tournament, Hagi retired from the national team, only to change his mind after a few months and participate in UEFA Euro 2000, during which he was sent off in the 2–0 quarter-final loss against eventual runners-up Italy; this was his final international appearance.", "title": "International career" }, { "paragraph_id": 15, "text": "Hagi retired from professional football in 2001, at the age of 36; that year, he was given a send-off in a testimonial game on 24 April, called \"Gala Hagi,\" featuring a team of Romanian All-Stars against a team of international All-Stars. At the time of his retirement, his 124 caps for his country were a national record, which has since been surpassed by Dorinel Munteanu. He currently still holds the record of most goals scored for the Romania national team, alongside Adrian Mutu, with 35.", "title": "International career" }, { "paragraph_id": 16, "text": "In 2001, Hagi was named the manager of the Romania national team, replacing Ladislau Bölöni, who left the squad to coach Sporting Clube de Portugal. After failing to qualify the team for the World Cup, Hagi was sacked. His only notable achievement during the six months as Romania's manager was the win in Budapest against Hungary.", "title": "Career as coach" }, { "paragraph_id": 17, "text": "In 2003, Hagi took over as coach of Turkish Süper Lig side Bursaspor, but left the club after a disappointing start to the season.", "title": "Career as coach" }, { "paragraph_id": 18, "text": "Hagi then became manager of Galatasaray in 2004, leading the team to the Turkish Cup in 2005 final with 5–1 as a score against fierce rivals Fenerbahçe. His contract, however, was not renewed since his team was not able to win 2004–05 Süper Lig title over Fenerbahçe during the centennial of the club.", "title": "Career as coach" }, { "paragraph_id": 19, "text": "Steaua București sought to hire Hagi in the summer of 2005, but Hagi's requested wage could not be met by the Romanian champions, and he became manager of Politehnica Timișoara instead. However, after a string of poor results and disagreements with management, he left the club after a few months. Constanța's main stadium used to bear his name, but the name was changed after Hagi signed with Politehnica Timișoara.", "title": "Career as coach" }, { "paragraph_id": 20, "text": "From June to September 2007, Hagi coached FC Steaua București, had a mediocre start in the internal championship mainly due to the large number of unavailable injured players, and managed to qualify the team for the second time in line to the UEFA Champions League group stages, passing two qualifying rounds. He resigned due to a long series of conflicts with club owner Gigi Becali, which also happens to be his godson. The main reason for resigning was the owner's policy of imposing players, making the team's strategy and threats. Hagi's resigned mere hours after FC Steaua's first Champions League match away against Slavia Prague, a 2–1 loss.", "title": "Career as coach" }, { "paragraph_id": 21, "text": "After Frank Rijkaard was sacked as coach, Hagi signed a one and a half-year contract with Galatasaray on 21 October 2010. His official presentation was held on 22 October. His former teammate from Galatasaray Tugay Kerimoğlu assisted him in Istanbul, but he was sacked on 22 March 2011 after a series of poor results in the Süper Lig.", "title": "Career as coach" }, { "paragraph_id": 22, "text": "In September 2014, Hagi appointed himself manager of Viitorul Constanța, in addition to being the owner and chairman of the club. Successfully avoiding relegation in his first season, Viitorul went on to be the season's wonder in the 2015–16 season, finishing the first half of the regular season on 3rd place, which led Hagi to be named Romania Coach of the Year. Eventually, Viitorul finished the regular season on 4th place, earning their first play-off qualification. Viitorul finished the play-off on 5th place, but qualified for the UEFA Europa League third qualifying round due to Dinamo București's insolvency. In their first European match, Viitorul were defeated 0–5 by Gent at the Ghelamco Arena, and were eliminated after a 0–0 home draw.", "title": "Career as coach" }, { "paragraph_id": 23, "text": "Viitorul won their maiden league title, being 2016–17 Liga I champions after a 1–0 home victory over CFR Cluj; they finished the play-off with 44 points, same as FCSB, but on a better head-to-head record after a 3–1 home victory over FCSB. As a result, Hagi won his second Romania Coach of the Year award.", "title": "Career as coach" }, { "paragraph_id": 24, "text": "A talented left-footed attacking midfielder, Hagi's playing style was frequently compared with Diego Maradona's throughout his career, due to his technical ability as well as his temperamental character and leadership; as a youth, he was mainly inspired by compatriots Anghel Iordănescu and Ion Dumitru. A quick, agile, creative, and mobile advanced playmaker, Hagi was also tactically versatile, and capable of playing in several midfield and offensive positions on either wing or through the middle, due to his ability with both feet, despite being naturally left-footed, although he had a preference for using his stronger foot; his preferred position was in a free role as a classic number 10, but he was also used as a second striker on occasion. Hagi was renowned in particular for his first touch and speed on the ball, as well as his timing, interpretation of space, bursts of acceleration and dribbling skills, which enabled him to get past defenders; he was also highly regarded for his vision and precise passing, although he was capable of both scoring and assisting goals, and was also an accurate finisher and set-piece taker, who had a penchant for scoring goals from powerful, bending long range strikes. Despite his small stature and slender build, Hagi possessed significant upper body strength, which, along with his control, aided him in protecting the ball from opponents, and allowed him to create space for himself or his teammates. Despite his skill and his reputation as one of the greatest number 10s of his generation, his career was marked by inconsistency at times, and he was also considered to be a controversial player, due to his rebellious and arrogant attitude, as well as his low work-rate, aggression, unsportsmanlike behaviour, and lack of discipline, which led him to have several disagreements and confrontations with his managers, opponents, and officials.", "title": "Style of play" }, { "paragraph_id": 25, "text": "Hagi is currently married to Marilena Hagi, with whom he had two children, Ianis and Kira.", "title": "Personal life" }, { "paragraph_id": 26, "text": "His son, Ianis Hagi, who is also a footballer, was born in 1998 in Istanbul, Turkey, when he was playing for Galatasaray SK.", "title": "Personal life" }, { "paragraph_id": 27, "text": "His daughter, Kira Hagi, who was born in 1996, in Barcelona, Catalonia, Spain, when he was playing for Barcelona, is an actress.", "title": "Personal life" }, { "paragraph_id": 28, "text": "Hagi was chosen to dub in Romanian the character Dagda in the animated movie Epic.", "title": "Personal life" } ]
Gheorghe Hagi is a Romanian professional football manager and former player, who is currently the owner and manager of Liga I club Farul Constanța. Deployed as an attacking midfielder, Hagi was considered one of the best players in the world during the 1980s and '90s, and is regarded by many as the greatest Romanian footballer of all time. Fans of Turkish club Galatasaray, with whom Hagi ended his career, called him "Comandante", while he was known as "Regele" to Romanian supporters. Nicknamed "The Maradona of the Carpathians", he was a creative advanced playmaker renowned for his dribbling, technique, vision, passing and shooting. After starting his playing career in Romania, with Farul Constanța, and subsequently featuring for Sportul Studențesc and Steaua București, he later also had spells in Spain with Real Madrid and FC Barcelona, Italy with Brescia, and Turkey, with Galatasaray; as such, Hagi is one of the few footballers to have played for both Spanish rival clubs Real Madrid and Barcelona. Throughout his club career, he won numerous titles while playing in four different countries: he won three Romanian League titles, two Cupa României titles, and the European Super Cup with Steaua București – also reaching the final of the 1988–89 European Cup –, a Supercopa de España title with Real Madrid, the Anglo-Italian Cup with Brescia, another Supercopa de España title with Barcelona, and four Süper Lig titles, two Turkish Cups, two Turkish Super Cups, the UEFA Cup, and the UEFA Super Cup with Galatasaray. At international level, Hagi played for the Romania national team in three FIFA World Cups, in 1990, 1994 and 1998; as well as in three UEFA European Championships, in 1984, 1996 and 2000. He won a total of 124 caps for Romania between 1983 and 2000, making him the second-most capped Romanian player of all time, behind only Dorinel Munteanu; he is also the joint all-time leading goalscorer of the Romania national side with 35 goals. Hagi is considered a hero both in his homeland and in Turkey. He was named Romanian Footballer of the Year a record seven times, and is regarded as one of the best football players of his generation. Hagi was nominated six times for the Ballon d'Or, his best performance being a 4th place in 1994. In November 2003, to celebrate UEFA's Jubilee, Hagi was selected as the Golden Player of Romania by the Romanian Football Federation as their most outstanding player of the past 50 years. In 2004, he was named by Pelé as one of the 125 Greatest Living Footballers at a FIFA Awards Ceremony. In 1999, he was ranked at number 25 in World Soccer Magazine's list of the 100 greatest players of the 20th century. Following his retirement in 2001, Hagi pursued a managerial career, coaching the Romania national team, as well as clubs in both Romania and Turkey, namely Bursaspor, Galatasaray, Politehnica Timișoara, Steaua București, Viitorul Constanța and Farul Constanța. In 2009, he founded Romanian club Viitorul Constanța, which he has coached between 2014 and 2020. Hagi also established his namesake football academy, one of the largest ones in Southeastern Europe.
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https://en.wikipedia.org/wiki/Gheorghe_Hagi
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Gordon Banks
Gordon Banks OBE (30 December 1937 – 12 February 2019) was an English professional footballer who played as a goalkeeper. Widely regarded as one of the greatest goalkeepers of all time, he made 679 appearances during a 20-year professional career, and won 73 caps for England, highlighted by starting every game of the nation's 1966 World Cup victory. Banks joined Chesterfield in March 1953, and played for their youth team in the 1956 FA Youth Cup final. He made his first team debut in November 1958, and was sold to Leicester City for £7,000 in July 1959. He played in four cup finals for the club, as they were beaten in the 1961 and 1963 FA Cup finals, before winning the League Cup in 1964 and finishing as finalists in 1965. Despite this success, and his World Cup win in 1966, Banks was dropped by Leicester and sold on to Stoke City for £50,000 in April 1967. In the 1970 World Cup, he made one of the game's greatest saves to prevent a Pelé goal, but was absent due to illness as England were beaten by West Germany in the quarter-finals. Banks was Stoke City's goalkeeper in the 1972 League Cup win, the club's only major honour. He was still Stoke's and England's number one when a car crash in October 1972 cost him both the sight in his right eye and, eventually, his professional career. He played two last seasons in the United States for the Fort Lauderdale Strikers in 1977 and 1978, and despite only having vision in one eye, was NASL Goalkeeper of the Year in 1977 after posting the best defensive record in the league. He briefly entered management with Telford United, but left the game in December 1980. Banks was named FWA Footballer of the Year in 1972, and was named FIFA Goalkeeper of the Year on six occasions. The IFFHS named Banks the second-best goalkeeper of the 20th century, after Lev Yashin. Banks was born in Abbeydale, Sheffield, and brought up in the working-class area of Tinsley. The family later moved to the village of Catcliffe after his father set up a (then-illegal) betting shop. This brought greater prosperity but also misery; one day Banks's disabled brother was mugged for the shop's daily takings, and died of his injuries some weeks later. Banks left school in December 1952, aged 15, and took up employment as a bagger with a local coal merchant, which helped to build up his upper body strength. He spent a season playing for amateur side Millspaugh after their regular goalkeeper failed to turn up for a match; the club's trainer spotted Banks amongst the spectators and invited him to play in goal as he was aware that Banks had previously played for Sheffield Schoolboys. His performances there earned him a game in the Yorkshire League for Rawmarsh Welfare, However, a 12–2 defeat to Stocksbridge Works on his debut was followed by a 3–1 home defeat, and he was dropped by Rawmarsh and returned to Millspaugh. Still aged 15, he then switched jobs to become a hod carrier. He was scouted by Chesterfield whilst playing for Millspaugh, and offered a six-game trial in the youth team in March 1953. He impressed enough in these games to be offered a part-time £3-a-week contract by manager Teddy Davison in July 1953. The reserve team were placed in the Central League on account of a powerful club director rather than on merit, and Banks conceded 122 goals in the 1954–55 season as the "Spireites" finished in last place with only three victories. Banks was posted to Germany with the Royal Signals on national service, and won the Rhine Cup with his regimental team. He recovered from a fractured elbow to help the Chesterfield youth team to the 1956 final of the FA Youth Cup. There they were beaten 4–3 on aggregate by Manchester United's famous "Busby Babes"—a team that included both Wilf McGuinness and Bobby Charlton. Banks was given his first team debut by manager Doug Livingstone, at the expense of long-serving Ron Powell, in a Third Division game against Colchester United at Saltergate in November 1958. The game ended 2–2, and Banks kept his place against Norwich City in the following match; by the end of the 1958–59 season he had missed only three games, those owing to injury. With no goalkeeping coach to guide him, Banks had to learn from his mistakes on the pitch, and he soon developed into a modern vocal goalkeeper who ordered the players in front of him into a more effective defence. Having just 23 league and three cup appearances to his name, it came as a surprise to Banks when Matt Gillies, manager of First Division club Leicester City, bought him from Chesterfield for £7,000 in July 1959; this also meant a wage increase to £15 a week. Banks faced competition from five other goalkeepers, including 30-year-old Scotland international Johnny Anderson and 25-year-old Dave MacLaren. He started the 1959–60 season as the reserve team's goalkeeper. This in effect made him the club's second-choice, ahead of four of his rivals but behind first team choice MacLaren. He had played four reserve team games when MacLaren picked up an injury, and manager Matt Gillies selected Banks for his Leicester debut against Blackpool at Filbert Street on 9 September. The match finished 1–1, with Jackie Mudie's strike cancelling out Ken Leek's opener. Banks retained his place for the 2–0 loss to Newcastle United at St James' Park three days later. With McLaren fit again, Banks was sent back to the reserves but, after the first team conceded 14 goals in the next five games, he was recalled and became the first-choice goalkeeper for the remainder of the season. The defensive record did not improve at first, with Banks conceding six in a heavy defeat by Everton at Goodison Park, but he improved in each match and the Foxes settled for a comfortable 12th-place finish. In training, he worked extensively on improving his weaknesses, such as coming for crosses. He put in extra hours during training and came up with practice sessions to improve his skills – this was largely unique in an era where there were no specialized goalkeeping coaches. In the summer, both Anderson and MacLaren departed, leaving Banks as the club's undisputed number one ahead of a group of understudies. Leicester finished sixth in 1960–61, and managed to beat champions Tottenham Hotspur at White Hart Lane. Yet their greatest accomplishment was in reaching the final of the FA Cup, with Banks conceding only five goals in their nine games en route to the final, and keeping three clean sheets in the semi-final and two replays against Sheffield United. Their opponents in the final at Wembley were Tottenham, who had already won the First Division title by an eight-point margin. Right-back Len Chalmers picked up a severe injury early in the match, and with Ken Leek dropped for disciplinary reasons in favour of rookie Hughie McIlmoyle, City were effectively playing with ten men and offered little threat going forward. Bobby Smith and Terry Dyson gave Spurs a 2–0 win and the first "double" of the 20th century, with Banks unable to prevent either goal. The 1961–62 season proved to be highly disappointing, as Leicester finished 14th in the league and exited the FA Cup at the hands of Stoke City. The only highlight was the club's participation in the European Cup Winners' Cup, which actually put Banks in the difficult position of choosing to play for his club against Spanish club Atlético Madrid or choosing to attend the England versus Portugal match as a non-playing squad member. He elected to attend both games, leaving London at full-time to reach Leicester 30 minutes before the kick-off against Madrid. A last-minute goal earned the Spaniards a 1–1 draw at Filbert Street. In the return leg, Banks saved an Enrique Collar penalty, but Atlético were awarded a second penalty which Collar converted, and Leicester lost the game 2–0 (losing the tie 3–1 on aggregate). Banks broke his nose at Craven Cottage on the opening day of the 1962–63 season, in a 2–1 defeat by Fulham. Leicester went to chase a possible double, reaching the FA Cup semi-finals whilst lying top of the table in April. City beat Liverpool 1–0 at Hillsborough to reach the final, with Banks keeping a clean sheet despite his goal being under a near-constant siege from the Merseyside club. The News of the World reported that Liverpool had had 34 attempts on goal to Leicester's one, and Banks later stated that it was his finest performance at club level. Unluckily, Banks then broke a finger in a 2–1 defeat by West Bromwich Albion at The Hawthorns, and was out injured as Leicester lost their final three league games, ending the season in a disappointing fourth place. In the 1963 FA Cup final Banks and the rest of the team underperformed, and lost the game 3–1 to Manchester United. City ended the 1963–64 season in 11th place, having been inconsistent all season. Success instead came through the League Cup, as they beat West Ham United 6–3 over two legs in the semi-finals to reach the final against Stoke City. The opening tie at the Victoria Ground finished 1–1 in extremely muddy conditions as Banks spilled a shot from Bill Asprey, with Keith Bebbington pouncing on the rebound. Back at Filbert Street, goals from Mike Stringfellow, Dave Gibson and Howard Riley won the game for Leicester 3–2 and settled the tie at 4–3. Banks started the 1964–65 season on wages of £40 a week, and the club only agreed to pay £60 a week in December. These miserly wages made it difficult for the club to spend the £80,000 it received from the sale of Frank McLintock – he had put in a transfer request over dissatisfaction with his pay and quality replacements were reluctant to join a club that paid full internationals like Banks and McLintock no more than the base rate that rival clubs paid to average players. Leicester finished 18th in the league and were knocked out of the FA Cup by Liverpool at Anfield in the sixth round. In the League Cup, City struggled to get past Peterborough United (in a replay), Grimsby Town and Crystal Palace (in a replay), before they recorded an 8–1 victory over Coventry City at Highfield Road. After easing past Plymouth Argyle in the semi-finals, Banks found himself playing in another League Cup final. However, Chelsea won the final after successfully defending their 3–2 win at Stamford Bridge with a goalless draw at Filbert Street. Banks missed the first nine games of the 1965–66 season after breaking his wrist when diving at the feet of Northampton Town's Joe Kiernan in a pre-season friendly. Leicester finished the season in seventh spot, and exited both cup competitions at the hands of Manchester City. Despite being a World Cup winner in the previous summer, Banks was dropped towards the end of the 1966–67 season in favour of highly promising teenage reserve Peter Shilton. Manager Matt Gillies was blunt, telling Banks "we [Gillies and the club's directors] think your best days are behind you, and you should move on". Teammate Richie Norman told Banks that Gillies was pressured into the decision, Shilton having told the board he would leave the club unless he was given first team football. Banks was transfer listed at £50,000, the same price the club received for Derek Dougan in March 1967. However, many of the big clubs were unwilling to spend such a sum on a goalkeeper. Liverpool manager Bill Shankly showed strong interest, but could not convince the club's board of directors to agree to such a large fee for a goalkeeper. West Ham United manager Ron Greenwood was prepared to match the fee, but instead signed Kilmarnock's Bobby Ferguson for £65,000 because he had already agreed terms with Kilmarnock and did not want to go back on his word. Terms were instead agreed with Stoke City, a mid-table First Division side. "I've not come here to retire you know. I've come to here to win something." — Banks speaking upon signing with the club after critics questioned Waddington's policy of signing veteran players. On leaving Filbert Street, Banks requested a loyalty bonus from Leicester, and was told by Matt Gillies "We've decided not to pay you a penny. There's to be no compensation payment and that's final." Banks then refused the move until Stoke boss Tony Waddington seemingly negotiated a £2,000 payment out of Leicester. It was only some years later that Banks was informed that Stoke had actually made the payment, not Leicester. Waddington valued good goalkeepers highly, and the two built up a close relationship. During this time, Banks moved to Madeley, Staffordshire. He replaced John Farmer as the club's number one, and kept goal in the last four games of the 1966–67 season, making his home debut at the Victoria Ground in a 3–1 win over his former club Leicester. Banks fitted in well at Stoke, as Waddington built a team of veteran players who were judged by some to be past their best. The Potters struggled near the foot of the First Division table in the 1967–68 and 1968–69 campaigns, before rising to ninth place in the 1969–70 season. Banks remained a reliable stopper for the club, though on 1 March 1969 he was knocked unconscious at Roker Park by Sunderland's Malcolm Moore, and his replacement David Herd conceded four goals in a 4–1 defeat. Banks also played a season for the Cleveland Stokers of the American United Soccer Association in the summer of 1968: he played seven of the short-lived club's 12 games in Cleveland, Ohio. Banks made what he believed to be three of the best saves of his career in a Stoke shirt. In the first instance he saved and caught a powerful and well-placed header from Manchester City's Wyn Davies from just 8 yards (7.3 m) out; in the second case he saved a Francis Lee header at Maine Road; and he made his third great save for the club by catching a volley from Tottenham Hotspur's Alan Gilzean that had been hit from just 6 yards (5.5 m) out at White Hart Lane. Stoke began to compete for honours in the 1970–71 season, though despite impressive victories against the top two clubs—Arsenal and Leeds United—City ended the season in mid-table obscurity. The club's great achievement was in reaching the semi-finals of the FA Cup, beating Millwall, Huddersfield Town, Ipswich Town and Hull City en route. Facing Arsenal at Hillsborough in the semi-finals, they lost a two-goal lead to draw 2–2, and were then beaten 2–0 in the replay at Villa Park. Despite another mid-table finish in 1971–72, Stoke beat Chesterfield, Tranmere Rovers, Hull City and Manchester United to reach another FA Cup semi-final. They again faced Arsenal, and once more a draw at Villa Park meant a replay at Goodison Park. The Gunners' goals in a 2–1 victory came from a disputed Frank McLintock penalty and a John Radford goal that television replays showed was clearly offside. In a May 2011 interview, Banks said that he still felt "cheated" out of a chance to play for the club in an FA Cup final. Stoke and Banks found solace in the League Cup, though it took them 11 matches to reach the final after overcoming Southport, then Oxford United in a replay, Manchester United in a second replay, Bristol Rovers, and then West Ham United in a second replay following an aggregate draw after two legs. In extra time of the second leg with West Ham, Banks fouled Harry Redknapp, conceding a penalty, and then saved Geoff Hurst's powerful spot-kick to keep City in the competition. They then faced Chelsea in the final at Wembley. Peter Osgood beat Banks with a hooked shot just before half-time, but goals from Terry Conroy and George Eastham won Stoke the game 2–1. At the end of the season Banks was named as the FWA Footballer of the Year, becoming the first goalkeeper to receive the honour since Bert Trautmann in 1956. On 22 October 1972, while driving home from a session of work on his injured shoulder with the Stoke physiotherapist, Banks lost control of his new Ford Consul (a re-badged Ford Granada Mk I) car, which ended up in a ditch. He had attempted to overtake a car on a sharp bend and collided with an oncoming Austin A60 van. He was taken to the North Staffordshire Hospital and during an operation received 200 stitches in his face and over 100 micro-stitches inside the socket of his right eye, and was told the chances of saving the sight in his eye were 50–50. His sight never returned, and as the loss of binocular vision severely limited his abilities as a goalkeeper, he retired from professional football the following summer. In April 1977 he went to play as a named superstar in the North American Soccer League (NASL) for Fort Lauderdale Strikers. The Strikers won their division in 1977, and Banks was named NASL Goalkeeper of the Year after he conceded only 29 goals in 26 games—the best defensive record in the NASL. He also played one League of Ireland game for St Patrick's Athletic, keeping a clean sheet in a 1–0 win over Shamrock Rovers at Richmond Park on 2 October 1977. He returned to Fort Lauderdale and played 11 games in the 1978 season. Banks was capped twice for the England under-23 side, in matches against Wales and Scotland in 1961. Ron Springett was the goalkeeper for England as Banks rose to prominence, but after the 1962 World Cup in Chile, a new coach was appointed in former England right-back Alf Ramsey. Ramsey demanded sole control of the team and began looking towards the next World Cup. Banks won his first cap on 6 April 1963 against Scotland at Wembley, after Springett was dropped following a poor performance. England lost 2–1, though Banks was blameless as Scotland's goals came firstly from an error by Jimmy Armfield and then secondly from the penalty spot. He was picked for the next match against Brazil, which ended in a creditable 1–1 draw after Bryan Douglas cancelled out Pepe's opener. Banks continued to play consistently to become established as England's first-choice goalkeeper. In 1963, he was picked to play against the Rest of the World, in a celebration match to mark 100 years of The Football Association. Banks also played in two of England's three games at the "Little World Cup" in Brazil in the summer of 1964, a 1–1 draw with Portugal and a 1–0 defeat to Argentina. Blackpool's Tony Waiters won five caps in the England goal in 1964, but found that his challenge to Banks's first team place came to an end after he conceded five goals to Brazil. During England's summer of 1965 tour he built up a solid understanding with his defenders—George Cohen, Jack Charlton, Bobby Moore, and Ray Wilson—as he only conceded two goals in four matches against Hungary, Yugoslavia, West Germany, and Sweden. They then played seven friendlies in 1966 in the build-up to the World Cup, though the team passed their biggest test of character in the British Home Championship, beating Scotland 4–3 in front of a crowd of over 130,000 at Hampden Park. Going into the competition, the only defeat in 21 matches since the "Little World Cup" came against Austria, in a game that Banks missed due to injury. Banks entered the 1966 FIFA World Cup as England's first-choice goalkeeper, and his understudies Ron Springett and Peter Bonetti never took to the field during the tournament. England opened the tournament with a goalless draw against Uruguay, with Banks a virtual spectator as the highly defensive Uruguayans rarely ventured out of their own half. They then defeated Mexico 2–0, with Banks again rarely troubled throughout. A 2–0 win over France then took England through the group stage without Banks conceding a goal. England beat Argentina 1–0 in the last eight, with Geoff Hurst scoring with a header; the match was sullied by the first-half sending off of Argentinian midfielder Antonio Rattín, who refused to leave the pitch after being dismissed for dissent. In contrast to the previous games, the semi-final against Portugal proved to be a fair contest between two sides of talented players eager to attack from the start of the match. Yet there was panic in the buildup to the game as trainer Harold Shepherdson forgot to buy chewing gum, which Banks used to make his hands stickier and better able to handle the ball, and so Shepherdson had to run to a nearby newsagents to purchase gum as the teams were in the tunnel. Bobby Charlton scored two goals, but Portugal made a strong finish and won a penalty on 82 minutes after Jack Charlton handled the ball in the penalty area. Eusébio converted the penalty after sending Banks the wrong way, and the game finished 2–1 in England's favour. This was the first goal Banks had conceded for England in 721 minutes of regular play, since giving up Scotland's last goal after 81 minutes of the Home International clash in April. This remained a record for an England goalkeeper until 2021 when it was broken by Jordan Pickford. England's opponents in the final were West Germany. It was England who dominated the final but it was Banks who was beaten first. A weak header from Ray Wilson handed a chance to Helmut Haller, who sent an accurate but relatively weak shot into the corner of the net; Banks had been unsighted by Jack Charlton, and he failed to adjust his position in time to reach the ball. England equalised through a Geoff Hurst header within six minutes and went ahead late in the second half through Martin Peters. With seconds left in the game, Lothar Emmerich sent a free kick into the England penalty area, and the ball fell to Wolfgang Weber, who guided the ball over a lunging Ray Wilson and an outstretched Banks into the net to take the game into extra-time. In extra-time, the Germans sent shots in at the England goal which Banks managed to catch and control without any great danger. Hurst scored two goals to complete his hat-trick, and though many claimed his second goal never crossed the line Banks always maintained his belief that the officials called the decision correctly. Between these goals Banks had to deal with a fiery shot from Sigfried Held, and was later exposed only for Uwe Seeler to come just centimetres away from connecting with the ball. Scotland were the first team to beat the world champions, as goals from Denis Law, Bobby Lennox and Jim McCalliog secured a 3–2 victory at Wembley on 15 April 1967. Despite this set-back, England qualified for UEFA Euro 1968, which consisted of just four teams: England, Italy (hosts), the Soviet Union, and Yugoslavia. England played just two games at the tournament, losing 1–0 to Yugoslavia, and then beating the Soviets 2–0 in the third-place play-off. Banks went into the 1970 World Cup as England's number one with 59 caps to his name, and had Peter Bonetti (six caps) and Alex Stepney (one cap) as his understudies. He found the heat and altitude at Guadalajara, Mexico difficult to cope with. The team's efforts at acclimatisation were not helped when Bobby Moore was falsely accused of stealing the infamous "Bogotá Bracelet". Despite this, a Geoff Hurst goal was enough to beat their first opponents, Romania. A far tougher test awaited on 7 June, when England faced Brazil. The day before the match Banks was informed that he had been awarded an OBE. Playing at pace, Brazil were putting England under enormous pressure and an attack was begun by captain Carlos Alberto who sent a low ball down the right flank for the speedy Jairzinho to latch on to. The Brazilian winger sped past left-back Terry Cooper and crossed the ball into the six-yard box, where Pelé connected with a powerful header to send the ball low towards the right-hand corner of the goal. In the knowledge that his header was placed to perfection, Pelé immediately shouted "Gol!" (Brazilian Portuguese for goal). The split-second incident only allowed Banks time for one conscious thought – that the shot was impossible to catch, and the only way to prevent Pelé from following up on the rebound would be to parry the ball over the bar. The ball bounced 2 yards (1.8 m) in front of the goal-line, and Banks managed to make contact with the ball with the fingers of his right hand, and rolled his hand slightly to angle the ball over the crossbar. He landed in the inner netting of the goal, and knew he had saved the ball after seeing Pelé's reaction. Banks then rose to his feet to defend the corner, and broke into laughter after the following exchange: Pelé, and numerous journalists and pundits, would later describe the save as the greatest in the history of the game. Banks later said "They won't remember me for winning the World Cup, it'll be for that save. That's how big a thing it is. People just want to talk about that save." In 2002 the UK public voted the save No. 41 in the list of the 100 Greatest Sporting Moments. Brazil won the game 1–0 after Jairzinho beat Banks in the second half. England ultimately joined Brazil in the last eight after a win in the final group game against Czechoslovakia. The reward was a rematch of the 1966 final against West Germany. The day before the West Germany game England's hopes of making further inroads into the World Cup were dented when Banks started to complain of an upset stomach. He became affected by violent stomach cramps and aching limbs, and spent his time in the bathroom sweating, shivering and vomiting. He passed an extremely undemanding fitness test but suffered a relapse shortly before the game and Ramsey was forced to rest him and play Peter Bonetti in his place. Ramsey remarked that "of all the players to lose, we had to lose him." Banks watched the game on television at the hotel as England lost a two-goal lead to be eliminated 3–2 after extra time. Due to a time delay on the broadcast he switched the television off with England 2–0 in the lead, as Bobby Moore returned to the hotel to break the news of the defeat. Suspicions later surfaced that Banks had been poisoned to take him out of the game, but with no evidence to support them Banks never believed in them. Only four teams competed in UEFA Euro 1972: Belgium (hosts), Hungary, the Soviet Union, and West Germany. England came close to qualifying, but lost 3–1 to West Germany in the final round of qualifying. On 15 May 1971, Banks was involved in a notorious incident with George Best who, while playing against England for Northern Ireland, flicked the ball out of Banks's hands and headed it into the net. The move was audacious, but was disallowed by the referee, who judged it to be dangerous play. Banks played his 73rd and final game for England on 27 May 1972, in a 1–0 win over Scotland at Hampden Park. During his 73 international games he kept 35 clean sheets and lost just nine games. In December 1977 he was appointed as a coach at Port Vale by manager Dennis Butler, being demoted to reserve coach in October 1978 by new boss Alan Bloor. Banks enjoyed coaching but soon resigned his position, feeling that players such as Bernie Wright refused to take his advice on board. He applied for the vacant management positions at Lincoln City and Rotherham United, but was rejected. He instead accepted the role as manager of Alliance Premier League part-time club Telford United. He signed a goalkeeper, centre-half and centre-forward from Bangor City for £1,500, as well as former Stoke striker John Ruggiero. The "Bucks" finished in 13th place in 1979–80. In November 1980, he left Jackie Mudie in temporary charge of team affairs whilst he underwent surgery, who led the club to defeat in the FA Trophy at the hands of a lower league club. On his return to the club Banks was sacked. He was offered the position of raffle-ticket seller, and accepted the post in the belief that it would entitle him to the money owed to him in the terms of his management contract; he eventually had to settle for 50% of his contract. He later stated that "It broke my heart ... I did not want to stay in the game." An excellent, consistent, and instinctive goalkeeper, who possessed significant physical strength, athleticism, and excellent shot-stopping abilities, Banks is regarded as one of the greatest players of all time in his position. He possessed an excellent positional sense, which he felt to be one of his best assets, and was also known for his handling, awareness, composure, and mental strength, as well as his agility, speed, and quick reflexes, which enabled him to produce acrobatic saves, such as his famous stop from Pelé's header against Brazil at the 1970 World Cup in Mexico. Banks first met his wife Ursula during his national service in Germany in 1955. They had three children: Robert, Julia and Wendy. He separated from Ursula during his time in America, but the couple reunited when Banks returned to England. In October 1972 Banks was involved in a car crash in his Ford Consul while driving on the wrong side of the road, close to his home in Madeley Heath. Fragments of glass had perforated his right eye and damaged the retina requiring 100 micro stitches to the eye and a further 200 to his face. Banks's nephew is Nick Banks, drummer of the band Pulp. Shortly after his retirement, Banks was surprised by Eamonn Andrews for an episode of This Is Your Life. He later fronted a Leicester-based hospitality company. He lost a significant sum of money when the business failed, but was helped out by Leicester City, who offered him a belated testimonial match. He was appointed as Stoke City's president following the death of Stanley Matthews. Since the 1980s he was a member of the three-man pools panel. In 2001, he sold his World Cup winners medal at Christie's for £124,750, and his international cap from the final was also sold for £27,025. Banks was an Inaugural Inductee to the English Football Hall of Fame in 2002. In March 2004, he was named by Pelé as one of the world's 125 greatest living footballers. He was awarded an honorary doctorate from Keele University in February 2006. In May 2006, Banks was the first 'legend' to be inducted into a new Walk of Fame, by having a plaque installed in the pavement in front of Sheffield Town Hall. In July 2008, Pelé unveiled a statue of Banks making his famous 1970 World Cup save outside the Britannia Stadium. In March 2011, he was also inducted into the City of Stoke-on-Trent Hall of Fame, along with Roy Sproson. Pelé became a good friend of Banks and following his death the Brazilian described Banks as a "goalkeeper with magic". In 1980 Banks published his first autobiography, Banks of England. He published a more comprehensive autobiography in 2002: Banksy: My Autobiography. Irish investigative author, Don Mullan, published a boyhood memoir in 2006 called Gordon Banks – A Hero Who Could Fly in which he wrote about the influence of the England goalkeeper on his life. In December 2015, it was announced he was receiving treatment for kidney cancer. Banks died in his sleep on 12 February 2019 at the age of 81. Banks's funeral took place on 4 March 2019 at Stoke Minster. His pallbearers were goalkeepers representing his former teams; Joe Anyon (Chesterfield), Jack Butland (Stoke City), Joe Hart (England) and Kasper Schmeichel (Leicester City).
[ { "paragraph_id": 0, "text": "Gordon Banks OBE (30 December 1937 – 12 February 2019) was an English professional footballer who played as a goalkeeper. Widely regarded as one of the greatest goalkeepers of all time, he made 679 appearances during a 20-year professional career, and won 73 caps for England, highlighted by starting every game of the nation's 1966 World Cup victory.", "title": "" }, { "paragraph_id": 1, "text": "Banks joined Chesterfield in March 1953, and played for their youth team in the 1956 FA Youth Cup final. He made his first team debut in November 1958, and was sold to Leicester City for £7,000 in July 1959. He played in four cup finals for the club, as they were beaten in the 1961 and 1963 FA Cup finals, before winning the League Cup in 1964 and finishing as finalists in 1965. Despite this success, and his World Cup win in 1966, Banks was dropped by Leicester and sold on to Stoke City for £50,000 in April 1967. In the 1970 World Cup, he made one of the game's greatest saves to prevent a Pelé goal, but was absent due to illness as England were beaten by West Germany in the quarter-finals.", "title": "" }, { "paragraph_id": 2, "text": "Banks was Stoke City's goalkeeper in the 1972 League Cup win, the club's only major honour. He was still Stoke's and England's number one when a car crash in October 1972 cost him both the sight in his right eye and, eventually, his professional career. He played two last seasons in the United States for the Fort Lauderdale Strikers in 1977 and 1978, and despite only having vision in one eye, was NASL Goalkeeper of the Year in 1977 after posting the best defensive record in the league. He briefly entered management with Telford United, but left the game in December 1980.", "title": "" }, { "paragraph_id": 3, "text": "Banks was named FWA Footballer of the Year in 1972, and was named FIFA Goalkeeper of the Year on six occasions. The IFFHS named Banks the second-best goalkeeper of the 20th century, after Lev Yashin.", "title": "" }, { "paragraph_id": 4, "text": "Banks was born in Abbeydale, Sheffield, and brought up in the working-class area of Tinsley. The family later moved to the village of Catcliffe after his father set up a (then-illegal) betting shop. This brought greater prosperity but also misery; one day Banks's disabled brother was mugged for the shop's daily takings, and died of his injuries some weeks later. Banks left school in December 1952, aged 15, and took up employment as a bagger with a local coal merchant, which helped to build up his upper body strength. He spent a season playing for amateur side Millspaugh after their regular goalkeeper failed to turn up for a match; the club's trainer spotted Banks amongst the spectators and invited him to play in goal as he was aware that Banks had previously played for Sheffield Schoolboys. His performances there earned him a game in the Yorkshire League for Rawmarsh Welfare, However, a 12–2 defeat to Stocksbridge Works on his debut was followed by a 3–1 home defeat, and he was dropped by Rawmarsh and returned to Millspaugh. Still aged 15, he then switched jobs to become a hod carrier.", "title": "Early life" }, { "paragraph_id": 5, "text": "He was scouted by Chesterfield whilst playing for Millspaugh, and offered a six-game trial in the youth team in March 1953. He impressed enough in these games to be offered a part-time £3-a-week contract by manager Teddy Davison in July 1953. The reserve team were placed in the Central League on account of a powerful club director rather than on merit, and Banks conceded 122 goals in the 1954–55 season as the \"Spireites\" finished in last place with only three victories. Banks was posted to Germany with the Royal Signals on national service, and won the Rhine Cup with his regimental team. He recovered from a fractured elbow to help the Chesterfield youth team to the 1956 final of the FA Youth Cup. There they were beaten 4–3 on aggregate by Manchester United's famous \"Busby Babes\"—a team that included both Wilf McGuinness and Bobby Charlton.", "title": "Club career" }, { "paragraph_id": 6, "text": "Banks was given his first team debut by manager Doug Livingstone, at the expense of long-serving Ron Powell, in a Third Division game against Colchester United at Saltergate in November 1958. The game ended 2–2, and Banks kept his place against Norwich City in the following match; by the end of the 1958–59 season he had missed only three games, those owing to injury. With no goalkeeping coach to guide him, Banks had to learn from his mistakes on the pitch, and he soon developed into a modern vocal goalkeeper who ordered the players in front of him into a more effective defence. Having just 23 league and three cup appearances to his name, it came as a surprise to Banks when Matt Gillies, manager of First Division club Leicester City, bought him from Chesterfield for £7,000 in July 1959; this also meant a wage increase to £15 a week.", "title": "Club career" }, { "paragraph_id": 7, "text": "Banks faced competition from five other goalkeepers, including 30-year-old Scotland international Johnny Anderson and 25-year-old Dave MacLaren. He started the 1959–60 season as the reserve team's goalkeeper. This in effect made him the club's second-choice, ahead of four of his rivals but behind first team choice MacLaren. He had played four reserve team games when MacLaren picked up an injury, and manager Matt Gillies selected Banks for his Leicester debut against Blackpool at Filbert Street on 9 September. The match finished 1–1, with Jackie Mudie's strike cancelling out Ken Leek's opener. Banks retained his place for the 2–0 loss to Newcastle United at St James' Park three days later. With McLaren fit again, Banks was sent back to the reserves but, after the first team conceded 14 goals in the next five games, he was recalled and became the first-choice goalkeeper for the remainder of the season. The defensive record did not improve at first, with Banks conceding six in a heavy defeat by Everton at Goodison Park, but he improved in each match and the Foxes settled for a comfortable 12th-place finish. In training, he worked extensively on improving his weaknesses, such as coming for crosses. He put in extra hours during training and came up with practice sessions to improve his skills – this was largely unique in an era where there were no specialized goalkeeping coaches. In the summer, both Anderson and MacLaren departed, leaving Banks as the club's undisputed number one ahead of a group of understudies.", "title": "Club career" }, { "paragraph_id": 8, "text": "Leicester finished sixth in 1960–61, and managed to beat champions Tottenham Hotspur at White Hart Lane. Yet their greatest accomplishment was in reaching the final of the FA Cup, with Banks conceding only five goals in their nine games en route to the final, and keeping three clean sheets in the semi-final and two replays against Sheffield United. Their opponents in the final at Wembley were Tottenham, who had already won the First Division title by an eight-point margin. Right-back Len Chalmers picked up a severe injury early in the match, and with Ken Leek dropped for disciplinary reasons in favour of rookie Hughie McIlmoyle, City were effectively playing with ten men and offered little threat going forward. Bobby Smith and Terry Dyson gave Spurs a 2–0 win and the first \"double\" of the 20th century, with Banks unable to prevent either goal.", "title": "Club career" }, { "paragraph_id": 9, "text": "The 1961–62 season proved to be highly disappointing, as Leicester finished 14th in the league and exited the FA Cup at the hands of Stoke City. The only highlight was the club's participation in the European Cup Winners' Cup, which actually put Banks in the difficult position of choosing to play for his club against Spanish club Atlético Madrid or choosing to attend the England versus Portugal match as a non-playing squad member. He elected to attend both games, leaving London at full-time to reach Leicester 30 minutes before the kick-off against Madrid. A last-minute goal earned the Spaniards a 1–1 draw at Filbert Street. In the return leg, Banks saved an Enrique Collar penalty, but Atlético were awarded a second penalty which Collar converted, and Leicester lost the game 2–0 (losing the tie 3–1 on aggregate).", "title": "Club career" }, { "paragraph_id": 10, "text": "Banks broke his nose at Craven Cottage on the opening day of the 1962–63 season, in a 2–1 defeat by Fulham. Leicester went to chase a possible double, reaching the FA Cup semi-finals whilst lying top of the table in April. City beat Liverpool 1–0 at Hillsborough to reach the final, with Banks keeping a clean sheet despite his goal being under a near-constant siege from the Merseyside club. The News of the World reported that Liverpool had had 34 attempts on goal to Leicester's one, and Banks later stated that it was his finest performance at club level. Unluckily, Banks then broke a finger in a 2–1 defeat by West Bromwich Albion at The Hawthorns, and was out injured as Leicester lost their final three league games, ending the season in a disappointing fourth place. In the 1963 FA Cup final Banks and the rest of the team underperformed, and lost the game 3–1 to Manchester United.", "title": "Club career" }, { "paragraph_id": 11, "text": "City ended the 1963–64 season in 11th place, having been inconsistent all season. Success instead came through the League Cup, as they beat West Ham United 6–3 over two legs in the semi-finals to reach the final against Stoke City. The opening tie at the Victoria Ground finished 1–1 in extremely muddy conditions as Banks spilled a shot from Bill Asprey, with Keith Bebbington pouncing on the rebound. Back at Filbert Street, goals from Mike Stringfellow, Dave Gibson and Howard Riley won the game for Leicester 3–2 and settled the tie at 4–3.", "title": "Club career" }, { "paragraph_id": 12, "text": "Banks started the 1964–65 season on wages of £40 a week, and the club only agreed to pay £60 a week in December. These miserly wages made it difficult for the club to spend the £80,000 it received from the sale of Frank McLintock – he had put in a transfer request over dissatisfaction with his pay and quality replacements were reluctant to join a club that paid full internationals like Banks and McLintock no more than the base rate that rival clubs paid to average players. Leicester finished 18th in the league and were knocked out of the FA Cup by Liverpool at Anfield in the sixth round. In the League Cup, City struggled to get past Peterborough United (in a replay), Grimsby Town and Crystal Palace (in a replay), before they recorded an 8–1 victory over Coventry City at Highfield Road. After easing past Plymouth Argyle in the semi-finals, Banks found himself playing in another League Cup final. However, Chelsea won the final after successfully defending their 3–2 win at Stamford Bridge with a goalless draw at Filbert Street.", "title": "Club career" }, { "paragraph_id": 13, "text": "Banks missed the first nine games of the 1965–66 season after breaking his wrist when diving at the feet of Northampton Town's Joe Kiernan in a pre-season friendly. Leicester finished the season in seventh spot, and exited both cup competitions at the hands of Manchester City.", "title": "Club career" }, { "paragraph_id": 14, "text": "Despite being a World Cup winner in the previous summer, Banks was dropped towards the end of the 1966–67 season in favour of highly promising teenage reserve Peter Shilton. Manager Matt Gillies was blunt, telling Banks \"we [Gillies and the club's directors] think your best days are behind you, and you should move on\". Teammate Richie Norman told Banks that Gillies was pressured into the decision, Shilton having told the board he would leave the club unless he was given first team football. Banks was transfer listed at £50,000, the same price the club received for Derek Dougan in March 1967. However, many of the big clubs were unwilling to spend such a sum on a goalkeeper. Liverpool manager Bill Shankly showed strong interest, but could not convince the club's board of directors to agree to such a large fee for a goalkeeper. West Ham United manager Ron Greenwood was prepared to match the fee, but instead signed Kilmarnock's Bobby Ferguson for £65,000 because he had already agreed terms with Kilmarnock and did not want to go back on his word. Terms were instead agreed with Stoke City, a mid-table First Division side.", "title": "Club career" }, { "paragraph_id": 15, "text": "\"I've not come here to retire you know. I've come to here to win something.\"", "title": "Club career" }, { "paragraph_id": 16, "text": "— Banks speaking upon signing with the club after critics questioned Waddington's policy of signing veteran players.", "title": "Club career" }, { "paragraph_id": 17, "text": "On leaving Filbert Street, Banks requested a loyalty bonus from Leicester, and was told by Matt Gillies \"We've decided not to pay you a penny. There's to be no compensation payment and that's final.\" Banks then refused the move until Stoke boss Tony Waddington seemingly negotiated a £2,000 payment out of Leicester. It was only some years later that Banks was informed that Stoke had actually made the payment, not Leicester. Waddington valued good goalkeepers highly, and the two built up a close relationship. During this time, Banks moved to Madeley, Staffordshire. He replaced John Farmer as the club's number one, and kept goal in the last four games of the 1966–67 season, making his home debut at the Victoria Ground in a 3–1 win over his former club Leicester.", "title": "Club career" }, { "paragraph_id": 18, "text": "Banks fitted in well at Stoke, as Waddington built a team of veteran players who were judged by some to be past their best. The Potters struggled near the foot of the First Division table in the 1967–68 and 1968–69 campaigns, before rising to ninth place in the 1969–70 season. Banks remained a reliable stopper for the club, though on 1 March 1969 he was knocked unconscious at Roker Park by Sunderland's Malcolm Moore, and his replacement David Herd conceded four goals in a 4–1 defeat. Banks also played a season for the Cleveland Stokers of the American United Soccer Association in the summer of 1968: he played seven of the short-lived club's 12 games in Cleveland, Ohio.", "title": "Club career" }, { "paragraph_id": 19, "text": "Banks made what he believed to be three of the best saves of his career in a Stoke shirt. In the first instance he saved and caught a powerful and well-placed header from Manchester City's Wyn Davies from just 8 yards (7.3 m) out; in the second case he saved a Francis Lee header at Maine Road; and he made his third great save for the club by catching a volley from Tottenham Hotspur's Alan Gilzean that had been hit from just 6 yards (5.5 m) out at White Hart Lane.", "title": "Club career" }, { "paragraph_id": 20, "text": "Stoke began to compete for honours in the 1970–71 season, though despite impressive victories against the top two clubs—Arsenal and Leeds United—City ended the season in mid-table obscurity. The club's great achievement was in reaching the semi-finals of the FA Cup, beating Millwall, Huddersfield Town, Ipswich Town and Hull City en route. Facing Arsenal at Hillsborough in the semi-finals, they lost a two-goal lead to draw 2–2, and were then beaten 2–0 in the replay at Villa Park.", "title": "Club career" }, { "paragraph_id": 21, "text": "Despite another mid-table finish in 1971–72, Stoke beat Chesterfield, Tranmere Rovers, Hull City and Manchester United to reach another FA Cup semi-final. They again faced Arsenal, and once more a draw at Villa Park meant a replay at Goodison Park. The Gunners' goals in a 2–1 victory came from a disputed Frank McLintock penalty and a John Radford goal that television replays showed was clearly offside. In a May 2011 interview, Banks said that he still felt \"cheated\" out of a chance to play for the club in an FA Cup final. Stoke and Banks found solace in the League Cup, though it took them 11 matches to reach the final after overcoming Southport, then Oxford United in a replay, Manchester United in a second replay, Bristol Rovers, and then West Ham United in a second replay following an aggregate draw after two legs. In extra time of the second leg with West Ham, Banks fouled Harry Redknapp, conceding a penalty, and then saved Geoff Hurst's powerful spot-kick to keep City in the competition. They then faced Chelsea in the final at Wembley. Peter Osgood beat Banks with a hooked shot just before half-time, but goals from Terry Conroy and George Eastham won Stoke the game 2–1. At the end of the season Banks was named as the FWA Footballer of the Year, becoming the first goalkeeper to receive the honour since Bert Trautmann in 1956.", "title": "Club career" }, { "paragraph_id": 22, "text": "On 22 October 1972, while driving home from a session of work on his injured shoulder with the Stoke physiotherapist, Banks lost control of his new Ford Consul (a re-badged Ford Granada Mk I) car, which ended up in a ditch. He had attempted to overtake a car on a sharp bend and collided with an oncoming Austin A60 van. He was taken to the North Staffordshire Hospital and during an operation received 200 stitches in his face and over 100 micro-stitches inside the socket of his right eye, and was told the chances of saving the sight in his eye were 50–50. His sight never returned, and as the loss of binocular vision severely limited his abilities as a goalkeeper, he retired from professional football the following summer.", "title": "Club career" }, { "paragraph_id": 23, "text": "In April 1977 he went to play as a named superstar in the North American Soccer League (NASL) for Fort Lauderdale Strikers. The Strikers won their division in 1977, and Banks was named NASL Goalkeeper of the Year after he conceded only 29 goals in 26 games—the best defensive record in the NASL. He also played one League of Ireland game for St Patrick's Athletic, keeping a clean sheet in a 1–0 win over Shamrock Rovers at Richmond Park on 2 October 1977. He returned to Fort Lauderdale and played 11 games in the 1978 season.", "title": "Club career" }, { "paragraph_id": 24, "text": "Banks was capped twice for the England under-23 side, in matches against Wales and Scotland in 1961.", "title": "International career" }, { "paragraph_id": 25, "text": "Ron Springett was the goalkeeper for England as Banks rose to prominence, but after the 1962 World Cup in Chile, a new coach was appointed in former England right-back Alf Ramsey. Ramsey demanded sole control of the team and began looking towards the next World Cup. Banks won his first cap on 6 April 1963 against Scotland at Wembley, after Springett was dropped following a poor performance. England lost 2–1, though Banks was blameless as Scotland's goals came firstly from an error by Jimmy Armfield and then secondly from the penalty spot. He was picked for the next match against Brazil, which ended in a creditable 1–1 draw after Bryan Douglas cancelled out Pepe's opener. Banks continued to play consistently to become established as England's first-choice goalkeeper. In 1963, he was picked to play against the Rest of the World, in a celebration match to mark 100 years of The Football Association.", "title": "International career" }, { "paragraph_id": 26, "text": "Banks also played in two of England's three games at the \"Little World Cup\" in Brazil in the summer of 1964, a 1–1 draw with Portugal and a 1–0 defeat to Argentina. Blackpool's Tony Waiters won five caps in the England goal in 1964, but found that his challenge to Banks's first team place came to an end after he conceded five goals to Brazil. During England's summer of 1965 tour he built up a solid understanding with his defenders—George Cohen, Jack Charlton, Bobby Moore, and Ray Wilson—as he only conceded two goals in four matches against Hungary, Yugoslavia, West Germany, and Sweden. They then played seven friendlies in 1966 in the build-up to the World Cup, though the team passed their biggest test of character in the British Home Championship, beating Scotland 4–3 in front of a crowd of over 130,000 at Hampden Park. Going into the competition, the only defeat in 21 matches since the \"Little World Cup\" came against Austria, in a game that Banks missed due to injury.", "title": "International career" }, { "paragraph_id": 27, "text": "Banks entered the 1966 FIFA World Cup as England's first-choice goalkeeper, and his understudies Ron Springett and Peter Bonetti never took to the field during the tournament. England opened the tournament with a goalless draw against Uruguay, with Banks a virtual spectator as the highly defensive Uruguayans rarely ventured out of their own half. They then defeated Mexico 2–0, with Banks again rarely troubled throughout. A 2–0 win over France then took England through the group stage without Banks conceding a goal.", "title": "International career" }, { "paragraph_id": 28, "text": "England beat Argentina 1–0 in the last eight, with Geoff Hurst scoring with a header; the match was sullied by the first-half sending off of Argentinian midfielder Antonio Rattín, who refused to leave the pitch after being dismissed for dissent. In contrast to the previous games, the semi-final against Portugal proved to be a fair contest between two sides of talented players eager to attack from the start of the match. Yet there was panic in the buildup to the game as trainer Harold Shepherdson forgot to buy chewing gum, which Banks used to make his hands stickier and better able to handle the ball, and so Shepherdson had to run to a nearby newsagents to purchase gum as the teams were in the tunnel. Bobby Charlton scored two goals, but Portugal made a strong finish and won a penalty on 82 minutes after Jack Charlton handled the ball in the penalty area. Eusébio converted the penalty after sending Banks the wrong way, and the game finished 2–1 in England's favour. This was the first goal Banks had conceded for England in 721 minutes of regular play, since giving up Scotland's last goal after 81 minutes of the Home International clash in April. This remained a record for an England goalkeeper until 2021 when it was broken by Jordan Pickford.", "title": "International career" }, { "paragraph_id": 29, "text": "England's opponents in the final were West Germany. It was England who dominated the final but it was Banks who was beaten first. A weak header from Ray Wilson handed a chance to Helmut Haller, who sent an accurate but relatively weak shot into the corner of the net; Banks had been unsighted by Jack Charlton, and he failed to adjust his position in time to reach the ball. England equalised through a Geoff Hurst header within six minutes and went ahead late in the second half through Martin Peters. With seconds left in the game, Lothar Emmerich sent a free kick into the England penalty area, and the ball fell to Wolfgang Weber, who guided the ball over a lunging Ray Wilson and an outstretched Banks into the net to take the game into extra-time. In extra-time, the Germans sent shots in at the England goal which Banks managed to catch and control without any great danger. Hurst scored two goals to complete his hat-trick, and though many claimed his second goal never crossed the line Banks always maintained his belief that the officials called the decision correctly. Between these goals Banks had to deal with a fiery shot from Sigfried Held, and was later exposed only for Uwe Seeler to come just centimetres away from connecting with the ball.", "title": "International career" }, { "paragraph_id": 30, "text": "Scotland were the first team to beat the world champions, as goals from Denis Law, Bobby Lennox and Jim McCalliog secured a 3–2 victory at Wembley on 15 April 1967. Despite this set-back, England qualified for UEFA Euro 1968, which consisted of just four teams: England, Italy (hosts), the Soviet Union, and Yugoslavia. England played just two games at the tournament, losing 1–0 to Yugoslavia, and then beating the Soviets 2–0 in the third-place play-off.", "title": "International career" }, { "paragraph_id": 31, "text": "Banks went into the 1970 World Cup as England's number one with 59 caps to his name, and had Peter Bonetti (six caps) and Alex Stepney (one cap) as his understudies. He found the heat and altitude at Guadalajara, Mexico difficult to cope with. The team's efforts at acclimatisation were not helped when Bobby Moore was falsely accused of stealing the infamous \"Bogotá Bracelet\". Despite this, a Geoff Hurst goal was enough to beat their first opponents, Romania. A far tougher test awaited on 7 June, when England faced Brazil. The day before the match Banks was informed that he had been awarded an OBE.", "title": "International career" }, { "paragraph_id": 32, "text": "Playing at pace, Brazil were putting England under enormous pressure and an attack was begun by captain Carlos Alberto who sent a low ball down the right flank for the speedy Jairzinho to latch on to. The Brazilian winger sped past left-back Terry Cooper and crossed the ball into the six-yard box, where Pelé connected with a powerful header to send the ball low towards the right-hand corner of the goal. In the knowledge that his header was placed to perfection, Pelé immediately shouted \"Gol!\" (Brazilian Portuguese for goal).", "title": "International career" }, { "paragraph_id": 33, "text": "The split-second incident only allowed Banks time for one conscious thought – that the shot was impossible to catch, and the only way to prevent Pelé from following up on the rebound would be to parry the ball over the bar. The ball bounced 2 yards (1.8 m) in front of the goal-line, and Banks managed to make contact with the ball with the fingers of his right hand, and rolled his hand slightly to angle the ball over the crossbar. He landed in the inner netting of the goal, and knew he had saved the ball after seeing Pelé's reaction. Banks then rose to his feet to defend the corner, and broke into laughter after the following exchange:", "title": "International career" }, { "paragraph_id": 34, "text": "Pelé, and numerous journalists and pundits, would later describe the save as the greatest in the history of the game. Banks later said \"They won't remember me for winning the World Cup, it'll be for that save. That's how big a thing it is. People just want to talk about that save.\" In 2002 the UK public voted the save No. 41 in the list of the 100 Greatest Sporting Moments.", "title": "International career" }, { "paragraph_id": 35, "text": "Brazil won the game 1–0 after Jairzinho beat Banks in the second half. England ultimately joined Brazil in the last eight after a win in the final group game against Czechoslovakia. The reward was a rematch of the 1966 final against West Germany.", "title": "International career" }, { "paragraph_id": 36, "text": "The day before the West Germany game England's hopes of making further inroads into the World Cup were dented when Banks started to complain of an upset stomach. He became affected by violent stomach cramps and aching limbs, and spent his time in the bathroom sweating, shivering and vomiting. He passed an extremely undemanding fitness test but suffered a relapse shortly before the game and Ramsey was forced to rest him and play Peter Bonetti in his place. Ramsey remarked that \"of all the players to lose, we had to lose him.\" Banks watched the game on television at the hotel as England lost a two-goal lead to be eliminated 3–2 after extra time. Due to a time delay on the broadcast he switched the television off with England 2–0 in the lead, as Bobby Moore returned to the hotel to break the news of the defeat. Suspicions later surfaced that Banks had been poisoned to take him out of the game, but with no evidence to support them Banks never believed in them.", "title": "International career" }, { "paragraph_id": 37, "text": "Only four teams competed in UEFA Euro 1972: Belgium (hosts), Hungary, the Soviet Union, and West Germany. England came close to qualifying, but lost 3–1 to West Germany in the final round of qualifying.", "title": "International career" }, { "paragraph_id": 38, "text": "On 15 May 1971, Banks was involved in a notorious incident with George Best who, while playing against England for Northern Ireland, flicked the ball out of Banks's hands and headed it into the net. The move was audacious, but was disallowed by the referee, who judged it to be dangerous play. Banks played his 73rd and final game for England on 27 May 1972, in a 1–0 win over Scotland at Hampden Park. During his 73 international games he kept 35 clean sheets and lost just nine games.", "title": "International career" }, { "paragraph_id": 39, "text": "In December 1977 he was appointed as a coach at Port Vale by manager Dennis Butler, being demoted to reserve coach in October 1978 by new boss Alan Bloor. Banks enjoyed coaching but soon resigned his position, feeling that players such as Bernie Wright refused to take his advice on board. He applied for the vacant management positions at Lincoln City and Rotherham United, but was rejected. He instead accepted the role as manager of Alliance Premier League part-time club Telford United. He signed a goalkeeper, centre-half and centre-forward from Bangor City for £1,500, as well as former Stoke striker John Ruggiero. The \"Bucks\" finished in 13th place in 1979–80.", "title": "Coaching career" }, { "paragraph_id": 40, "text": "In November 1980, he left Jackie Mudie in temporary charge of team affairs whilst he underwent surgery, who led the club to defeat in the FA Trophy at the hands of a lower league club. On his return to the club Banks was sacked. He was offered the position of raffle-ticket seller, and accepted the post in the belief that it would entitle him to the money owed to him in the terms of his management contract; he eventually had to settle for 50% of his contract. He later stated that \"It broke my heart ... I did not want to stay in the game.\"", "title": "Coaching career" }, { "paragraph_id": 41, "text": "An excellent, consistent, and instinctive goalkeeper, who possessed significant physical strength, athleticism, and excellent shot-stopping abilities, Banks is regarded as one of the greatest players of all time in his position. He possessed an excellent positional sense, which he felt to be one of his best assets, and was also known for his handling, awareness, composure, and mental strength, as well as his agility, speed, and quick reflexes, which enabled him to produce acrobatic saves, such as his famous stop from Pelé's header against Brazil at the 1970 World Cup in Mexico.", "title": "Style of play" }, { "paragraph_id": 42, "text": "Banks first met his wife Ursula during his national service in Germany in 1955. They had three children: Robert, Julia and Wendy. He separated from Ursula during his time in America, but the couple reunited when Banks returned to England.", "title": "Personal life" }, { "paragraph_id": 43, "text": "In October 1972 Banks was involved in a car crash in his Ford Consul while driving on the wrong side of the road, close to his home in Madeley Heath. Fragments of glass had perforated his right eye and damaged the retina requiring 100 micro stitches to the eye and a further 200 to his face.", "title": "Personal life" }, { "paragraph_id": 44, "text": "Banks's nephew is Nick Banks, drummer of the band Pulp.", "title": "Personal life" }, { "paragraph_id": 45, "text": "Shortly after his retirement, Banks was surprised by Eamonn Andrews for an episode of This Is Your Life. He later fronted a Leicester-based hospitality company. He lost a significant sum of money when the business failed, but was helped out by Leicester City, who offered him a belated testimonial match. He was appointed as Stoke City's president following the death of Stanley Matthews. Since the 1980s he was a member of the three-man pools panel.", "title": "Personal life" }, { "paragraph_id": 46, "text": "In 2001, he sold his World Cup winners medal at Christie's for £124,750, and his international cap from the final was also sold for £27,025.", "title": "Personal life" }, { "paragraph_id": 47, "text": "Banks was an Inaugural Inductee to the English Football Hall of Fame in 2002. In March 2004, he was named by Pelé as one of the world's 125 greatest living footballers. He was awarded an honorary doctorate from Keele University in February 2006. In May 2006, Banks was the first 'legend' to be inducted into a new Walk of Fame, by having a plaque installed in the pavement in front of Sheffield Town Hall. In July 2008, Pelé unveiled a statue of Banks making his famous 1970 World Cup save outside the Britannia Stadium. In March 2011, he was also inducted into the City of Stoke-on-Trent Hall of Fame, along with Roy Sproson. Pelé became a good friend of Banks and following his death the Brazilian described Banks as a \"goalkeeper with magic\".", "title": "Personal life" }, { "paragraph_id": 48, "text": "In 1980 Banks published his first autobiography, Banks of England. He published a more comprehensive autobiography in 2002: Banksy: My Autobiography. Irish investigative author, Don Mullan, published a boyhood memoir in 2006 called Gordon Banks – A Hero Who Could Fly in which he wrote about the influence of the England goalkeeper on his life.", "title": "Personal life" }, { "paragraph_id": 49, "text": "In December 2015, it was announced he was receiving treatment for kidney cancer.", "title": "Personal life" }, { "paragraph_id": 50, "text": "Banks died in his sleep on 12 February 2019 at the age of 81. Banks's funeral took place on 4 March 2019 at Stoke Minster. His pallbearers were goalkeepers representing his former teams; Joe Anyon (Chesterfield), Jack Butland (Stoke City), Joe Hart (England) and Kasper Schmeichel (Leicester City).", "title": "Personal life" } ]
Gordon Banks was an English professional footballer who played as a goalkeeper. Widely regarded as one of the greatest goalkeepers of all time, he made 679 appearances during a 20-year professional career, and won 73 caps for England, highlighted by starting every game of the nation's 1966 World Cup victory. Banks joined Chesterfield in March 1953, and played for their youth team in the 1956 FA Youth Cup final. He made his first team debut in November 1958, and was sold to Leicester City for £7,000 in July 1959. He played in four cup finals for the club, as they were beaten in the 1961 and 1963 FA Cup finals, before winning the League Cup in 1964 and finishing as finalists in 1965. Despite this success, and his World Cup win in 1966, Banks was dropped by Leicester and sold on to Stoke City for £50,000 in April 1967. In the 1970 World Cup, he made one of the game's greatest saves to prevent a Pelé goal, but was absent due to illness as England were beaten by West Germany in the quarter-finals. Banks was Stoke City's goalkeeper in the 1972 League Cup win, the club's only major honour. He was still Stoke's and England's number one when a car crash in October 1972 cost him both the sight in his right eye and, eventually, his professional career. He played two last seasons in the United States for the Fort Lauderdale Strikers in 1977 and 1978, and despite only having vision in one eye, was NASL Goalkeeper of the Year in 1977 after posting the best defensive record in the league. He briefly entered management with Telford United, but left the game in December 1980. Banks was named FWA Footballer of the Year in 1972, and was named FIFA Goalkeeper of the Year on six occasions. The IFFHS named Banks the second-best goalkeeper of the 20th century, after Lev Yashin.
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https://en.wikipedia.org/wiki/Gordon_Banks
12,278
Ganglion
A ganglion (pl.: ganglia) is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system, this includes dorsal root ganglia and trigeminal ganglia among a few others. In the autonomic nervous system, there are both sympathetic and parasympathetic ganglia which contain the cell bodies of postganglionic sympathetic and parasympathetic neurons respectively. A pseudoganglion looks like a ganglion, but only has nerve fibers and has no nerve cell bodies. Ganglia are primarily made up of somata and dendritic structures, which are bundled or connected. Ganglia often interconnect with other ganglia to form a complex system of ganglia known as a plexus. Ganglia provide relay points and intermediary connections between different neurological structures in the body, such as the peripheral and central nervous systems. Among vertebrates there are three major groups of ganglia: In the autonomic nervous system, fibers from the central nervous system to the ganglia are known as preganglionic fibers, while those from the ganglia to the effector organ are called postganglionic fibers. The term "ganglion" refers to the peripheral nervous system. However, in the brain (part of the central nervous system), the basal ganglia is a group of nuclei interconnected with the cerebral cortex, thalamus, and brainstem, associated with a variety of functions: motor control, cognition, emotions, and learning. Partly due to this ambiguity, the Terminologia Anatomica recommends using the term 'basal nuclei' instead of 'basal ganglia'; however, this usage has not been generally adopted. A pseudoganglion is a localized thickening of the main part or trunk of a nerve that has the appearance of a ganglion but has only nerve fibers and no nerve cell bodies. Pseudoganglia are found in the teres minor muscle and radial nerve.
[ { "paragraph_id": 0, "text": "A ganglion (pl.: ganglia) is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system, this includes dorsal root ganglia and trigeminal ganglia among a few others. In the autonomic nervous system, there are both sympathetic and parasympathetic ganglia which contain the cell bodies of postganglionic sympathetic and parasympathetic neurons respectively.", "title": "" }, { "paragraph_id": 1, "text": "A pseudoganglion looks like a ganglion, but only has nerve fibers and has no nerve cell bodies.", "title": "" }, { "paragraph_id": 2, "text": "Ganglia are primarily made up of somata and dendritic structures, which are bundled or connected. Ganglia often interconnect with other ganglia to form a complex system of ganglia known as a plexus. Ganglia provide relay points and intermediary connections between different neurological structures in the body, such as the peripheral and central nervous systems.", "title": "Structure" }, { "paragraph_id": 3, "text": "Among vertebrates there are three major groups of ganglia:", "title": "Structure" }, { "paragraph_id": 4, "text": "In the autonomic nervous system, fibers from the central nervous system to the ganglia are known as preganglionic fibers, while those from the ganglia to the effector organ are called postganglionic fibers.", "title": "Structure" }, { "paragraph_id": 5, "text": "The term \"ganglion\" refers to the peripheral nervous system.", "title": "Structure" }, { "paragraph_id": 6, "text": "However, in the brain (part of the central nervous system), the basal ganglia is a group of nuclei interconnected with the cerebral cortex, thalamus, and brainstem, associated with a variety of functions: motor control, cognition, emotions, and learning.", "title": "Structure" }, { "paragraph_id": 7, "text": "Partly due to this ambiguity, the Terminologia Anatomica recommends using the term 'basal nuclei' instead of 'basal ganglia'; however, this usage has not been generally adopted.", "title": "Structure" }, { "paragraph_id": 8, "text": "A pseudoganglion is a localized thickening of the main part or trunk of a nerve that has the appearance of a ganglion but has only nerve fibers and no nerve cell bodies.", "title": "Structure" }, { "paragraph_id": 9, "text": "Pseudoganglia are found in the teres minor muscle and radial nerve.", "title": "Structure" } ]
A ganglion is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system, this includes dorsal root ganglia and trigeminal ganglia among a few others. In the autonomic nervous system, there are both sympathetic and parasympathetic ganglia which contain the cell bodies of postganglionic sympathetic and parasympathetic neurons respectively. A pseudoganglion looks like a ganglion, but only has nerve fibers and has no nerve cell bodies.
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https://en.wikipedia.org/wiki/Ganglion
12,281
Gottfried Wilhelm Leibniz
Gottfried Wilhelm Leibniz (1 July 1646 [O.S. 21 June] – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat. Leibniz has been called the "last universal genius" due to his knowledge and skills in different fields and because such people became less common during the Industrial Revolution and spread of specialized labor after his lifetime. He is a prominent figure in both the history of philosophy and the history of mathematics. He wrote works on philosophy, theology, ethics, politics, law, history, philology, games, music, and other studies. Leibniz also made major contributions to physics and technology, and anticipated notions that surfaced much later in probability theory, biology, medicine, geology, psychology, linguistics and computer science. In addition, he contributed to the field of library science by devising a cataloguing system whilst working at Wolfenbüttel library in Germany that would have served as a guide for many of Europe's largest libraries. Leibniz's contributions to a wide range of subjects were scattered in various learned journals, in tens of thousands of letters and in unpublished manuscripts. He wrote in several languages, primarily in Latin, French and German. As a philosopher, he was a leading representative of 17th-century rationalism and idealism. As a mathematician, his major achievement was the development of the main ideas of differential and integral calculus, independently of Isaac Newton's contemporaneous developments. Mathematicians have consistently favored Leibniz's notation as the conventional and more exact expression of calculus. In the 20th century, Leibniz's notions of the law of continuity and transcendental law of homogeneity found a consistent mathematical formulation by means of non-standard analysis. He was also a pioneer in the field of mechanical calculators. While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, later used in the arithmometer, the first mass-produced mechanical calculator. In philosophy and theology, Leibniz is most noted for his optimism, i.e. his conclusion that our world is, in a qualified sense, the best possible world that God could have created, a view sometimes lampooned by other thinkers, such as Voltaire in his satirical novella Candide. Leibniz, along with René Descartes and Baruch Spinoza, was one of the three influential early modern rationalists. His philosophy also assimilates elements of the scholastic tradition, notably the assumption that some substantive knowledge of reality can be achieved by reasoning from first principles or prior definitions. The work of Leibniz anticipated modern logic and still influences contemporary analytic philosophy, such as its adopted use of the term "possible world" to define modal notions. Gottfried Leibniz was born on July 1 [OS: June 21], 1646, in Leipzig, Saxony, to Friedrich Leibniz and Catharina Schmuck. He was baptized two days later at St. Nicholas Church, Leipzig; his godfather was the Lutheran theologian Martin Geier [de]. His father died when he was six years old, and from that point on, Leibniz was raised by his mother. Leibniz's father had been a Professor of Moral Philosophy at the University of Leipzig, where he also served as dean of philosophy. The boy inherited his father's personal library. He was given free access to it from the age of seven. While Leibniz's schoolwork was largely confined to the study of a small canon of authorities, his father's library enabled him to study a wide variety of advanced philosophical and theological works—ones that he would not have otherwise been able to read until his college years. Access to his father's library, largely written in Latin, also led to his proficiency in the Latin language, which he achieved by the age of 12. At the age of 13 he composed 300 hexameters of Latin verse in a single morning for a special event at school. In April 1661 he enrolled in his father's former university at age 14. There he was guided, among others, by Jakob Thomasius, previously a student of Friedrich. Leibniz completed his bachelor's degree in Philosophy in December 1662. He defended his Disputatio Metaphysica de Principio Individui (Metaphysical Disputation on the Principle of Individuation), which addressed the principle of individuation, on 9 June 1663 [O.S. 30 May], presenting an early version of monadic substance theory. Leibniz earned his master's degree in Philosophy on 7 February 1664. In December 1664 he published and defended a dissertation Specimen Quaestionum Philosophicarum ex Jure collectarum (An Essay of Collected Philosophical Problems of Right), arguing for both a theoretical and a pedagogical relationship between philosophy and law. After one year of legal studies, he was awarded his bachelor's degree in Law on 28 September 1665. His dissertation was titled De conditionibus (On Conditions). In early 1666, at age 19, Leibniz wrote his first book, De Arte Combinatoria (On the Combinatorial Art), the first part of which was also his habilitation thesis in Philosophy, which he defended in March 1666. De Arte Combinatoria was inspired by Ramon Llull's Ars Magna and contained a proof of the existence of God, cast in geometrical form, and based on the argument from motion. His next goal was to earn his license and Doctorate in Law, which normally required three years of study. In 1666, the University of Leipzig turned down Leibniz's doctoral application and refused to grant him a Doctorate in Law, most likely due to his relative youth. Leibniz subsequently left Leipzig. Leibniz then enrolled in the University of Altdorf and quickly submitted a thesis, which he had probably been working on earlier in Leipzig. The title of his thesis was Disputatio Inauguralis de Casibus Perplexis in Jure (Inaugural Disputation on Ambiguous Legal Cases). Leibniz earned his license to practice law and his Doctorate in Law in November 1666. He next declined the offer of an academic appointment at Altdorf, saying that "my thoughts were turned in an entirely different direction". As an adult, Leibniz often introduced himself as "Gottfried von Leibniz". Many posthumously published editions of his writings presented his name on the title page as "Freiherr G. W. von Leibniz." However, no document has ever been found from any contemporary government that stated his appointment to any form of nobility. Leibniz's first position was as a salaried secretary to an alchemical society in Nuremberg. He knew fairly little about the subject at that time but presented himself as deeply learned. He soon met Johann Christian von Boyneburg (1622–1672), the dismissed chief minister of the Elector of Mainz, Johann Philipp von Schönborn. Von Boyneburg hired Leibniz as an assistant, and shortly thereafter reconciled with the Elector and introduced Leibniz to him. Leibniz then dedicated an essay on law to the Elector in the hope of obtaining employment. The stratagem worked; the Elector asked Leibniz to assist with the redrafting of the legal code for the Electorate. In 1669, Leibniz was appointed assessor in the Court of Appeal. Although von Boyneburg died late in 1672, Leibniz remained under the employment of his widow until she dismissed him in 1674. Von Boyneburg did much to promote Leibniz's reputation, and the latter's memoranda and letters began to attract favorable notice. After Leibniz's service to the Elector there soon followed a diplomatic role. He published an essay, under the pseudonym of a fictitious Polish nobleman, arguing (unsuccessfully) for the German candidate for the Polish crown. The main force in European geopolitics during Leibniz's adult life was the ambition of Louis XIV of France, backed by French military and economic might. Meanwhile, the Thirty Years' War had left German-speaking Europe exhausted, fragmented, and economically backward. Leibniz proposed to protect German-speaking Europe by distracting Louis as follows: France would be invited to take Egypt as a stepping stone towards an eventual conquest of the Dutch East Indies. In return, France would agree to leave Germany and the Netherlands undisturbed. This plan obtained the Elector's cautious support. In 1672, the French government invited Leibniz to Paris for discussion, but the plan was soon overtaken by the outbreak of the Franco-Dutch War and became irrelevant. Napoleon's failed invasion of Egypt in 1798 can be seen as an unwitting, late implementation of Leibniz's plan, after the Eastern hemisphere colonial supremacy in Europe had already passed from the Dutch to the British. Thus Leibniz went to Paris in 1672. Soon after arriving, he met Dutch physicist and mathematician Christiaan Huygens and realised that his own knowledge of mathematics and physics was patchy. With Huygens as his mentor, he began a program of self-study that soon pushed him to making major contributions to both subjects, including discovering his version of the differential and integral calculus. He met Nicolas Malebranche and Antoine Arnauld, the leading French philosophers of the day, and studied the writings of Descartes and Pascal, unpublished as well as published. He befriended a German mathematician, Ehrenfried Walther von Tschirnhaus; they corresponded for the rest of their lives. When it became clear that France would not implement its part of Leibniz's Egyptian plan, the Elector sent his nephew, escorted by Leibniz, on a related mission to the English government in London, early in 1673. There Leibniz came into acquaintance of Henry Oldenburg and John Collins. He met with the Royal Society where he demonstrated a calculating machine that he had designed and had been building since 1670. The machine was able to execute all four basic operations (adding, subtracting, multiplying, and dividing), and the society quickly made him an external member. The mission ended abruptly when news of the Elector's death (12 February 1673) reached them. Leibniz promptly returned to Paris and not, as had been planned, to Mainz. The sudden deaths of his two patrons in the same winter meant that Leibniz had to find a new basis for his career. In this regard, a 1669 invitation from Duke John Frederick of Brunswick to visit Hanover proved to have been fateful. Leibniz had declined the invitation, but had begun corresponding with the duke in 1671. In 1673, the duke offered Leibniz the post of counsellor. Leibniz very reluctantly accepted the position two years later, only after it became clear that no employment was forthcoming in Paris, whose intellectual stimulation he relished, or with the Habsburg imperial court. In 1675 he tried to get admitted to the French Academy of Sciences as a foreign honorary member, but it was considered that there were already enough foreigners there and so no invitation came. He left Paris in October 1676. Leibniz managed to delay his arrival in Hanover until the end of 1676 after making one more short journey to London, where Newton accused him of having seen his unpublished work on calculus in advance. This was alleged to be evidence supporting the accusation, made decades later, that he had stolen calculus from Newton. On the journey from London to Hanover, Leibniz stopped in The Hague where he met van Leeuwenhoek, the discoverer of microorganisms. He also spent several days in intense discussion with Spinoza, who had just completed his masterwork, the Ethics. In 1677, he was promoted, at his request, to Privy Counselor of Justice, a post he held for the rest of his life. Leibniz served three consecutive rulers of the House of Brunswick as historian, political adviser, and most consequentially, as librarian of the ducal library. He thenceforth employed his pen on all the various political, historical, and theological matters involving the House of Brunswick; the resulting documents form a valuable part of the historical record for the period. Leibniz began promoting a project to use windmills to improve the mining operations in the Harz Mountains. This project did little to improve mining operations and was shut down by Duke Ernst August in 1685. Among the few people in north Germany to accept Leibniz were the Electress Sophia of Hanover (1630–1714), her daughter Sophia Charlotte of Hanover (1668–1705), the Queen of Prussia and his avowed disciple, and Caroline of Ansbach, the consort of her grandson, the future George II. To each of these women he was correspondent, adviser, and friend. In turn, they all approved of Leibniz more than did their spouses and the future king George I of Great Britain. The population of Hanover was only about 10,000, and its provinciality eventually grated on Leibniz. Nevertheless, to be a major courtier to the House of Brunswick was quite an honor, especially in light of the meteoric rise in the prestige of that House during Leibniz's association with it. In 1692, the Duke of Brunswick became a hereditary Elector of the Holy Roman Empire. The British Act of Settlement 1701 designated the Electress Sophia and her descent as the royal family of England, once both King William III and his sister-in-law and successor, Queen Anne, were dead. Leibniz played a role in the initiatives and negotiations leading up to that Act, but not always an effective one. For example, something he published anonymously in England, thinking to promote the Brunswick cause, was formally censured by the British Parliament. The Brunswicks tolerated the enormous effort Leibniz devoted to intellectual pursuits unrelated to his duties as a courtier, pursuits such as perfecting calculus, writing about other mathematics, logic, physics, and philosophy, and keeping up a vast correspondence. He began working on calculus in 1674; the earliest evidence of its use in his surviving notebooks is 1675. By 1677 he had a coherent system in hand, but did not publish it until 1684. Leibniz's most important mathematical papers were published between 1682 and 1692, usually in a journal which he and Otto Mencke founded in 1682, the Acta Eruditorum. That journal played a key role in advancing his mathematical and scientific reputation, which in turn enhanced his eminence in diplomacy, history, theology, and philosophy. The Elector Ernest Augustus commissioned Leibniz to write a history of the House of Brunswick, going back to the time of Charlemagne or earlier, hoping that the resulting book would advance his dynastic ambitions. From 1687 to 1690, Leibniz traveled extensively in Germany, Austria, and Italy, seeking and finding archival materials bearing on this project. Decades went by but no history appeared; the next Elector became quite annoyed at Leibniz's apparent dilatoriness. Leibniz never finished the project, in part because of his huge output on many other fronts, but also because he insisted on writing a meticulously researched and erudite book based on archival sources, when his patrons would have been quite happy with a short popular book, one perhaps little more than a genealogy with commentary, to be completed in three years or less. They never knew that he had in fact carried out a fair part of his assigned task: when the material Leibniz had written and collected for his history of the House of Brunswick was finally published in the 19th century, it filled three volumes. Leibniz was appointed Librarian of the Herzog August Library in Wolfenbüttel, Lower Saxony, in 1691. In 1708, John Keill, writing in the journal of the Royal Society and with Newton's presumed blessing, accused Leibniz of having plagiarised Newton's calculus. Thus began the calculus priority dispute which darkened the remainder of Leibniz's life. A formal investigation by the Royal Society (in which Newton was an unacknowledged participant), undertaken in response to Leibniz's demand for a retraction, upheld Keill's charge. Historians of mathematics writing since 1900 or so have tended to acquit Leibniz, pointing to important differences between Leibniz's and Newton's versions of calculus. In 1711, while traveling in northern Europe, the Russian Tsar Peter the Great stopped in Hanover and met Leibniz, who then took some interest in Russian matters for the rest of his life. In 1712, Leibniz began a two-year residence in Vienna, where he was appointed Imperial Court Councillor to the Habsburgs. On the death of Queen Anne in 1714, Elector George Louis became King George I of Great Britain, under the terms of the 1701 Act of Settlement. Even though Leibniz had done much to bring about this happy event, it was not to be his hour of glory. Despite the intercession of the Princess of Wales, Caroline of Ansbach, George I forbade Leibniz to join him in London until he completed at least one volume of the history of the Brunswick family his father had commissioned nearly 30 years earlier. Moreover, for George I to include Leibniz in his London court would have been deemed insulting to Newton, who was seen as having won the calculus priority dispute and whose standing in British official circles could not have been higher. Finally, his dear friend and defender, the Dowager Electress Sophia, died in 1714. Leibniz died in Hanover in 1716. At the time, he was so out of favor that neither George I (who happened to be near Hanover at that time) nor any fellow courtier other than his personal secretary attended the funeral. Even though Leibniz was a life member of the Royal Society and the Berlin Academy of Sciences, neither organization saw fit to honor his death. His grave went unmarked for more than 50 years. He was, however, eulogized by Fontenelle, before the French Academy of Sciences in Paris, which had admitted him as a foreign member in 1700. The eulogy was composed at the behest of the Duchess of Orleans, a niece of the Electress Sophia. Leibniz never married. He proposed to an unknown woman at age 50, but changed his mind when she took too long to decide. He complained on occasion about money, but the fair sum he left to his sole heir, his sister's stepson, proved that the Brunswicks had, by and large, paid him well. In his diplomatic endeavors, he at times verged on the unscrupulous, as was all too often the case with professional diplomats of his day. On several occasions, Leibniz backdated and altered personal manuscripts, actions which put him in a bad light during the calculus controversy. He was charming, well-mannered, and not without humor and imagination. He had many friends and admirers all over Europe. He was identified as a Protestant and a philosophical theist. Leibniz remained committed to Trinitarian Christianity throughout his life. Leibniz's philosophical thinking appears fragmented, because his philosophical writings consist mainly of a multitude of short pieces: journal articles, manuscripts published long after his death, and many letters to many correspondents. He wrote only two book-length philosophical treatises, of which only the Théodicée of 1710 was published in his lifetime. Leibniz dated his beginning as a philosopher to his Discourse on Metaphysics, which he composed in 1686 as a commentary on a running dispute between Nicolas Malebranche and Antoine Arnauld. This led to an extensive and valuable correspondence with Arnauld; it and the Discourse were not published until the 19th century. In 1695, Leibniz made his public entrée into European philosophy with a journal article titled "New System of the Nature and Communication of Substances". Between 1695 and 1705, he composed his New Essays on Human Understanding, a lengthy commentary on John Locke's 1690 An Essay Concerning Human Understanding, but upon learning of Locke's 1704 death, lost the desire to publish it, so that the New Essays were not published until 1765. The Monadologie, composed in 1714 and published posthumously, consists of 90 aphorisms. Leibniz also wrote a short paper, "Primae veritates" ("First Truths"), first published by Louis Couturat in 1903 (pp. 518–523) summarizing his views on metaphysics. The paper is undated; that he wrote it while in Vienna in 1689 was determined only in 1999, when the ongoing critical edition finally published Leibniz's philosophical writings for the period 1677–90. Couturat's reading of this paper was the launching point for much 20th-century thinking about Leibniz, especially among analytic philosophers. But after a meticulous study of all of Leibniz's philosophical writings up to 1688—a study the 1999 additions to the critical edition made possible—Mercer (2001) begged to differ with Couturat's reading; the jury is still out. Leibniz met Spinoza in 1676, read some of his unpublished writings, and had since been influenced by some of Spinoza's ideas. While Leibniz befriended him and admired Spinoza's powerful intellect, he was also forthrightly dismayed by Spinoza's conclusions, especially when these were inconsistent with Christian orthodoxy. Unlike Descartes and Spinoza, Leibniz had a thorough university education in philosophy. He was influenced by his Leipzig professor Jakob Thomasius, who also supervised his BA thesis in philosophy. Leibniz also eagerly read Francisco Suárez, a Spanish Jesuit respected even in Lutheran universities. Leibniz was deeply interested in the new methods and conclusions of Descartes, Huygens, Newton, and Boyle, but viewed their work through a lens heavily tinted by scholastic notions. Yet it remains the case that Leibniz's methods and concerns often anticipate the logic, and analytic and linguistic philosophy of the 20th century. Leibniz variously invoked one or another of seven fundamental philosophical Principles: Leibniz would on occasion give a rational defense of a specific principle, but more often took them for granted. Leibniz's best known contribution to metaphysics is his theory of monads, as exposited in Monadologie. He proposes his theory that the universe is made of an infinite number of simple substances known as monads. Monads can also be compared to the corpuscles of the mechanical philosophy of René Descartes and others. These simple substances or monads are the "ultimate units of existence in nature". Monads have no parts but still exist by the qualities that they have. These qualities are continuously changing over time, and each monad is unique. They are also not affected by time and are subject to only creation and annihilation. Monads are centers of force; substance is force, while space, matter, and motion are merely phenomenal. It is said that he anticipated Albert Einstein by arguing, against Newton, that space, time, and motion are completely relative as he quipped, "As for my own opinion, I have said more than once, that I hold space to be something merely relative, as time is, that I hold it to be an order of coexistences, as time is an order of successions." Einstein, who called himself a "Leibnizian" even wrote in the introduction to Max Jammer's book Concepts of Space that Leibnizianism was superior to Newtonianism, and his ideas would have dominated over Newton's had it not been for the poor technological tools of the time; it has been argued that Leibniz paved the way for Einstein's theory of relativity. Leibniz's proof of God can be summarized in the Théodicée. Reason is governed by the principle of contradiction and the principle of sufficient reason. Using the principle of reasoning, Leibniz concluded that the first reason of all things is God. All that we see and experience is subject to change, and the fact that this world is contingent can be explained by the possibility of the world being arranged differently in space and time. The contingent world must have some necessary reason for its existence. Leibniz uses a geometry book as an example to explain his reasoning. If this book was copied from an infinite chain of copies, there must be some reason for the content of the book. Leibniz concluded that there must be the "monas monadum" or God. The ontological essence of a monad is its irreducible simplicity. Unlike atoms, monads possess no material or spatial character. They also differ from atoms by their complete mutual independence, so that interactions among monads are only apparent. Instead, by virtue of the principle of pre-established harmony, each monad follows a pre-programmed set of "instructions" peculiar to itself, so that a monad "knows" what to do at each moment. By virtue of these intrinsic instructions, each monad is like a little mirror of the universe. Monads need not be "small"; e.g., each human being constitutes a monad, in which case free will is problematic. Monads are purported to have gotten rid of the problematic: The Theodicy tries to justify the apparent imperfections of the world by claiming that it is optimal among all possible worlds. It must be the best possible and most balanced world, because it was created by an all powerful and all knowing God, who would not choose to create an imperfect world if a better world could be known to him or possible to exist. In effect, apparent flaws that can be identified in this world must exist in every possible world, because otherwise God would have chosen to create the world that excluded those flaws. Leibniz asserted that the truths of theology (religion) and philosophy cannot contradict each other, since reason and faith are both "gifts of God" so that their conflict would imply God contending against himself. The Theodicy is Leibniz's attempt to reconcile his personal philosophical system with his interpretation of the tenets of Christianity. This project was motivated in part by Leibniz's belief, shared by many philosophers and theologians during the Enlightenment, in the rational and enlightened nature of the Christian religion. It was also shaped by Leibniz's belief in the perfectibility of human nature (if humanity relied on correct philosophy and religion as a guide), and by his belief that metaphysical necessity must have a rational or logical foundation, even if this metaphysical causality seemed inexplicable in terms of physical necessity (the natural laws identified by science). Because reason and faith must be entirely reconciled, any tenet of faith which could not be defended by reason must be rejected. Leibniz then approached one of the central criticisms of Christian theism: if God is all good, all wise, and all powerful, then how did evil come into the world? The answer (according to Leibniz) is that, while God is indeed unlimited in wisdom and power, his human creations, as creations, are limited both in their wisdom and in their will (power to act). This predisposes humans to false beliefs, wrong decisions, and ineffective actions in the exercise of their free will. God does not arbitrarily inflict pain and suffering on humans; rather he permits both moral evil (sin) and physical evil (pain and suffering) as the necessary consequences of metaphysical evil (imperfection), as a means by which humans can identify and correct their erroneous decisions, and as a contrast to true good. Further, although human actions flow from prior causes that ultimately arise in God and therefore are known to God as metaphysical certainties, an individual's free will is exercised within natural laws, where choices are merely contingently necessary and to be decided in the event by a "wonderful spontaneity" that provides individuals with an escape from rigorous predestination. For Leibniz, "God is an absolutely perfect being". He describes this perfection later in section VI as the simplest form of something with the most substantial outcome (VI). Along these lines, he declares that every type of perfection "pertains to him (God) in the highest degree" (I). Even though his types of perfections are not specifically drawn out, Leibniz highlights the one thing that, to him, does certify imperfections and proves that God is perfect: "that one acts imperfectly if he acts with less perfection than he is capable of", and since God is a perfect being, he cannot act imperfectly (III). Because God cannot act imperfectly, the decisions he makes pertaining to the world must be perfect. Leibniz also comforts readers, stating that because he has done everything to the most perfect degree; those who love him cannot be injured. However, to love God is a subject of difficulty as Leibniz believes that we are "not disposed to wish for that which God desires" because we have the ability to alter our disposition (IV). In accordance with this, many act as rebels, but Leibniz says that the only way we can truly love God is by being content "with all that comes to us according to his will" (IV). Because God is "an absolutely perfect being" (I), Leibniz argues that God would be acting imperfectly if he acted with any less perfection than what he is able of (III). His syllogism then ends with the statement that God has made the world perfectly in all ways. This also affects how we should view God and his will. Leibniz states that, in lieu of God's will, we have to understand that God "is the best of all masters" and he will know when his good succeeds, so we, therefore, must act in conformity to his good will—or as much of it as we understand (IV). In our view of God, Leibniz declares that we cannot admire the work solely because of the maker, lest we mar the glory and love God in doing so. Instead, we must admire the maker for the work he has done (II). Effectively, Leibniz states that if we say the earth is good because of the will of God, and not good according to some standards of goodness, then how can we praise God for what he has done if contrary actions are also praiseworthy by this definition (II). Leibniz then asserts that different principles and geometry cannot simply be from the will of God, but must follow from his understanding. Leibniz wrote: "Why is there something rather than nothing? The sufficient reason ... is found in a substance which ... is a necessary being bearing the reason for its existence within itself." Martin Heidegger called this question "the fundamental question of metaphysics". Leibniz believed that much of human reasoning could be reduced to calculations of a sort, and that such calculations could resolve many differences of opinion: The only way to rectify our reasonings is to make them as tangible as those of the Mathematicians, so that we can find our error at a glance, and when there are disputes among persons, we can simply say: Let us calculate, without further ado, to see who is right. Leibniz's calculus ratiocinator, which resembles symbolic logic, can be viewed as a way of making such calculations feasible. Leibniz wrote memoranda that can now be read as groping attempts to get symbolic logic—and thus his calculus—off the ground. These writings remained unpublished until the appearance of a selection edited by Carl Immanuel Gerhardt (1859). Louis Couturat published a selection in 1901; by this time the main developments of modern logic had been created by Charles Sanders Peirce and by Gottlob Frege. Leibniz thought symbols were important for human understanding. He attached so much importance to the development of good notations that he attributed all his discoveries in mathematics to this. His notation for calculus is an example of his skill in this regard. Leibniz's passion for symbols and notation, as well as his belief that these are essential to a well-running logic and mathematics, made him a precursor of semiotics. But Leibniz took his speculations much further. Defining a character as any written sign, he then defined a "real" character as one that represents an idea directly and not simply as the word embodying the idea. Some real characters, such as the notation of logic, serve only to facilitate reasoning. Many characters well known in his day, including Egyptian hieroglyphics, Chinese characters, and the symbols of astronomy and chemistry, he deemed not real. Instead, he proposed the creation of a characteristica universalis or "universal characteristic", built on an alphabet of human thought in which each fundamental concept would be represented by a unique "real" character: It is obvious that if we could find characters or signs suited for expressing all our thoughts as clearly and as exactly as arithmetic expresses numbers or geometry expresses lines, we could do in all matters insofar as they are subject to reasoning all that we can do in arithmetic and geometry. For all investigations which depend on reasoning would be carried out by transposing these characters and by a species of calculus. Complex thoughts would be represented by combining characters for simpler thoughts. Leibniz saw that the uniqueness of prime factorization suggests a central role for prime numbers in the universal characteristic, a striking anticipation of Gödel numbering. Granted, there is no intuitive or mnemonic way to number any set of elementary concepts using the prime numbers. Because Leibniz was a mathematical novice when he first wrote about the characteristic, at first he did not conceive it as an algebra but rather as a universal language or script. Only in 1676 did he conceive of a kind of "algebra of thought", modeled on and including conventional algebra and its notation. The resulting characteristic included a logical calculus, some combinatorics, algebra, his analysis situs (geometry of situation), a universal concept language, and more. What Leibniz actually intended by his characteristica universalis and calculus ratiocinator, and the extent to which modern formal logic does justice to calculus, may never be established. Leibniz's idea of reasoning through a universal language of symbols and calculations remarkably foreshadows great 20th-century developments in formal systems, such as Turing completeness, where computation was used to define equivalent universal languages (see Turing degree). Leibniz has been noted as one of the most important logicians between the times of Aristotle and Gottlob Frege. Leibniz enunciated the principal properties of what we now call conjunction, disjunction, negation, identity, set inclusion, and the empty set. The principles of Leibniz's logic and, arguably, of his whole philosophy, reduce to two: The formal logic that emerged early in the 20th century also requires, at minimum, unary negation and quantified variables ranging over some universe of discourse. Leibniz published nothing on formal logic in his lifetime; most of what he wrote on the subject consists of working drafts. In his History of Western Philosophy, Bertrand Russell went so far as to claim that Leibniz had developed logic in his unpublished writings to a level which was reached only 200 years later. Russell's principal work on Leibniz found that many of Leibniz's most startling philosophical ideas and claims (e.g., that each of the fundamental monads mirrors the whole universe) follow logically from Leibniz's conscious choice to reject relations between things as unreal. He regarded such relations as (real) qualities of things (Leibniz admitted unary predicates only): For him, "Mary is the mother of John" describes separate qualities of Mary and of John. This view contrasts with the relational logic of De Morgan, Peirce, Schröder and Russell himself, now standard in predicate logic. Notably, Leibniz also declared space and time to be inherently relational. Leibniz's 1690 discovery of his algebra of concepts (deductively equivalent to the Boolean algebra) and the associated metaphysics, are of interest in present-day computational metaphysics. Although the mathematical notion of function was implicit in trigonometric and logarithmic tables, which existed in his day, Leibniz was the first, in 1692 and 1694, to employ it explicitly, to denote any of several geometric concepts derived from a curve, such as abscissa, ordinate, tangent, chord, and the perpendicular (see History of the function concept). In the 18th century, "function" lost these geometrical associations. Leibniz also believed that the sum of an infinite number of zeros would be equal to one half using the analogy of the creation of the world from nothing. Leibniz was also one of the pioneers in actuarial science, calculating the purchase price of life annuities and the liquidation of a state's debt. Leibniz's research into formal logic, also relevant to mathematics, is discussed in the preceding section. The best overview of Leibniz's writings on calculus may be found in Bos (1974). Leibniz, who invented one of the earliest mechanical calculators, said of calculation: "For it is unworthy of excellent men to lose hours like slaves in the labor of calculation which could safely be relegated to anyone else if machines were used." Leibniz arranged the coefficients of a system of linear equations into an array, now called a matrix, in order to find a solution to the system if it existed. This method was later called Gaussian elimination. Leibniz laid down the foundations and theory of determinants, although the Japanese mathematician Seki Takakazu also discovered determinants independently of Leibniz. His works show calculating the determinants using cofactors. Calculating the determinant using cofactors is named the Leibniz formula. Finding the determinant of a matrix using this method proves impractical with large n, requiring to calculate n! products and the number of n-permutations. He also solved systems of linear equations using determinants, which is now called Cramer's rule. This method for solving systems of linear equations based on determinants was found in 1684 by Leibniz (Cramer published his findings in 1750). Although Gaussian elimination requires O ( n 3 ) {\displaystyle O(n^{3})} arithmetic operations, linear algebra textbooks still teach cofactor expansion before LU factorization. The Leibniz formula for π states that Leibniz wrote that circles "can most simply be expressed by this series, that is, the aggregate of fractions alternately added and subtracted". However this formula is only accurate with a large number of terms, using 10,000,000 terms to obtain the correct value of π/4 to 8 decimal places. Leibniz attempted to create a definition for a straight line while attempting to prove the parallel postulate. While most mathematicians defined a straight line as the shortest line between two points, Leibniz believed that this was merely a property of a straight line rather than the definition. Leibniz is credited, along with Isaac Newton, with the discovery of calculus (differential and integral calculus). According to Leibniz's notebooks, a critical breakthrough occurred on 11 November 1675, when he employed integral calculus for the first time to find the area under the graph of a function y = f(x). He introduced several notations used to this day, for instance the integral sign ∫ ( ∫ f ( x ) d x {\displaystyle \displaystyle \int f(x)\,dx} ), representing an elongated S, from the Latin word summa, and the d used for differentials ( d y d x {\displaystyle {\frac {dy}{dx}}} ), from the Latin word differentia. Leibniz did not publish anything about his calculus until 1684. Leibniz expressed the inverse relation of integration and differentiation, later called the fundamental theorem of calculus, by means of a figure in his 1693 paper Supplementum geometriae dimensoriae.... However, James Gregory is credited for the theorem's discovery in geometric form, Isaac Barrow proved a more generalized geometric version, and Newton developed supporting theory. The concept became more transparent as developed through Leibniz's formalism and new notation. The product rule of differential calculus is still called "Leibniz's law". In addition, the theorem that tells how and when to differentiate under the integral sign is called the Leibniz integral rule. Leibniz exploited infinitesimals in developing calculus, manipulating them in ways suggesting that they had paradoxical algebraic properties. George Berkeley, in a tract called The Analyst and also in De Motu, criticized these. A recent study argues that Leibnizian calculus was free of contradictions, and was better grounded than Berkeley's empiricist criticisms. From 1711 until his death, Leibniz was engaged in a dispute with John Keill, Newton and others, over whether Leibniz had invented calculus independently of Newton. The use of infinitesimals in mathematics was frowned upon by followers of Karl Weierstrass, but survived in science and engineering, and even in rigorous mathematics, via the fundamental computational device known as the differential. Beginning in 1960, Abraham Robinson worked out a rigorous foundation for Leibniz's infinitesimals, using model theory, in the context of a field of hyperreal numbers. The resulting non-standard analysis can be seen as a belated vindication of Leibniz's mathematical reasoning. Robinson's transfer principle is a mathematical implementation of Leibniz's heuristic law of continuity, while the standard part function implements the Leibnizian transcendental law of homogeneity. Leibniz was the first to use the term analysis situs, later used in the 19th century to refer to what is now known as topology. There are two takes on this situation. On the one hand, Mates, citing a 1954 paper in German by Jacob Freudenthal, argues: Although for Leibniz the situs of a sequence of points is completely determined by the distance between them and is altered if those distances are altered, his admirer Euler, in the famous 1736 paper solving the Königsberg Bridge Problem and its generalizations, used the term geometria situs in such a sense that the situs remains unchanged under topological deformations. He mistakenly credits Leibniz with originating this concept. ... [It] is sometimes not realized that Leibniz used the term in an entirely different sense and hence can hardly be considered the founder of that part of mathematics. But Hideaki Hirano argues differently, quoting Mandelbrot: To sample Leibniz' scientific works is a sobering experience. Next to calculus, and to other thoughts that have been carried out to completion, the number and variety of premonitory thrusts is overwhelming. We saw examples in "packing", ... My Leibniz mania is further reinforced by finding that for one moment its hero attached importance to geometric scaling. In Euclidis Prota ..., which is an attempt to tighten Euclid's axioms, he states ...: "I have diverse definitions for the straight line. The straight line is a curve, any part of which is similar to the whole, and it alone has this property, not only among curves but among sets." This claim can be proved today. Thus the fractal geometry promoted by Mandelbrot drew on Leibniz's notions of self-similarity and the principle of continuity: Natura non facit saltus. We also see that when Leibniz wrote, in a metaphysical vein, that "the straight line is a curve, any part of which is similar to the whole", he was anticipating topology by more than two centuries. As for "packing", Leibniz told his friend and correspondent Des Bosses to imagine a circle, then to inscribe within it three congruent circles with maximum radius; the latter smaller circles could be filled with three even smaller circles by the same procedure. This process can be continued infinitely, from which arises a good idea of self-similarity. Leibniz's improvement of Euclid's axiom contains the same concept. Leibniz's writings are currently discussed, not only for their anticipations and possible discoveries not yet recognized, but as ways of advancing present knowledge. Much of his writing on physics is included in Gerhardt's Mathematical Writings. Leibniz contributed a fair amount to the statics and dynamics emerging around him, often disagreeing with Descartes and Newton. He devised a new theory of motion (dynamics) based on kinetic energy and potential energy, which posited space as relative, whereas Newton was thoroughly convinced that space was absolute. An important example of Leibniz's mature physical thinking is his Specimen Dynamicum of 1695. Until the discovery of subatomic particles and the quantum mechanics governing them, many of Leibniz's speculative ideas about aspects of nature not reducible to statics and dynamics made little sense. For instance, he anticipated Albert Einstein by arguing, against Newton, that space, time and motion are relative, not absolute: "As for my own opinion, I have said more than once, that I hold space to be something merely relative, as time is, that I hold it to be an order of coexistences, as time is an order of successions." Leibniz held a relationist notion of space and time, against Newton's substantivalist views. According to Newton's substantivalism, space and time are entities in their own right, existing independently of things. Leibniz's relationism, in contrast, describes space and time as systems of relations that exist between objects. The rise of general relativity and subsequent work in the history of physics has put Leibniz's stance in a more favorable light. One of Leibniz's projects was to recast Newton's theory as a vortex theory. However, his project went beyond vortex theory, since at its heart there was an attempt to explain one of the most difficult problems in physics, that of the origin of the cohesion of matter. The principle of sufficient reason has been invoked in recent cosmology, and his identity of indiscernibles in quantum mechanics, a field some even credit him with having anticipated in some sense. In addition to his theories about the nature of reality, Leibniz's contributions to the development of calculus have also had a major impact on physics. Leibniz's vis viva (Latin for "living force") is mv, twice the modern kinetic energy. He realized that the total energy would be conserved in certain mechanical systems, so he considered it an innate motive characteristic of matter. Here too his thinking gave rise to another regrettable nationalistic dispute. His vis viva was seen as rivaling the conservation of momentum championed by Newton in England and by Descartes and Voltaire in France; hence academics in those countries tended to neglect Leibniz's idea. Leibniz knew of the validity of conservation of momentum. In reality, both energy and momentum are conserved (in closed systems), so both approaches are valid. By proposing that the earth has a molten core, he anticipated modern geology. In embryology, he was a preformationist, but also proposed that organisms are the outcome of a combination of an infinite number of possible microstructures and of their powers. In the life sciences and paleontology, he revealed an amazing transformist intuition, fueled by his study of comparative anatomy and fossils. One of his principal works on this subject, Protogaea, unpublished in his lifetime, has recently been published in English for the first time. He worked out a primal organismic theory. In medicine, he exhorted the physicians of his time—with some results—to ground their theories in detailed comparative observations and verified experiments, and to distinguish firmly scientific and metaphysical points of view. Psychology had been a central interest of Leibniz. He appears to be an "underappreciated pioneer of psychology" He wrote on topics which are now regarded as fields of psychology: attention and consciousness, memory, learning (association), motivation (the act of "striving"), emergent individuality, the general dynamics of development (evolutionary psychology). His discussions in the New Essays and Monadology often rely on everyday observations such as the behaviour of a dog or the noise of the sea, and he develops intuitive analogies (the synchronous running of clocks or the balance spring of a clock). He also devised postulates and principles that apply to psychology: the continuum of the unnoticed petites perceptions to the distinct, self-aware apperception, and psychophysical parallelism from the point of view of causality and of purpose: "Souls act according to the laws of final causes, through aspirations, ends and means. Bodies act according to the laws of efficient causes, i.e. the laws of motion. And these two realms, that of efficient causes and that of final causes, harmonize with one another." This idea refers to the mind-body problem, stating that the mind and brain do not act upon each other, but act alongside each other separately but in harmony. Leibniz, however, did not use the term psychologia. Leibniz's epistemological position—against John Locke and English empiricism (sensualism)—was made clear: "Nihil est in intellectu quod non fuerit in sensu, nisi intellectu ipse." – "Nothing is in the intellect that was not first in the senses, except the intellect itself." Principles that are not present in sensory impressions can be recognised in human perception and consciousness: logical inferences, categories of thought, the principle of causality and the principle of purpose (teleology). Leibniz found his most important interpreter in Wilhelm Wundt, founder of psychology as a discipline. Wundt used the "… nisi intellectu ipse" quotation 1862 on the title page of his Beiträge zur Theorie der Sinneswahrnehmung (Contributions on the Theory of Sensory Perception) and published a detailed and aspiring monograph on Leibniz. Wundt shaped the term apperception, introduced by Leibniz, into an experimental psychologically based apperception psychology that included neuropsychological modelling – an excellent example of how a concept created by a great philosopher could stimulate a psychological research program. One principle in the thinking of Leibniz played a fundamental role: "the principle of equality of separate but corresponding viewpoints." Wundt characterized this style of thought (perspectivism) in a way that also applied for him—viewpoints that "supplement one another, while also being able to appear as opposites that only resolve themselves when considered more deeply." Much of Leibniz's work went on to have a great impact on the field of psychology. Leibniz thought that there are many petites perceptions, or small perceptions of which we perceive but of which we are unaware. He believed that by the principle that phenomena found in nature were continuous by default, it was likely that the transition between conscious and unconscious states had intermediary steps. For this to be true, there must also be a portion of the mind of which we are unaware at any given time. His theory regarding consciousness in relation to the principle of continuity can be seen as an early theory regarding the stages of sleep. In this way, Leibniz's theory of perception can be viewed as one of many theories leading up to the idea of the unconscious. Leibniz was a direct influence on Ernst Platner, who is credited with originally coining the term Unbewußtseyn (unconscious). Additionally, the idea of subliminal stimuli can be traced back to his theory of small perceptions. Leibniz's ideas regarding music and tonal perception went on to influence the laboratory studies of Wilhelm Wundt. In public health, he advocated establishing a medical administrative authority, with powers over epidemiology and veterinary medicine. He worked to set up a coherent medical training program, oriented towards public health and preventive measures. In economic policy, he proposed tax reforms and a national insurance program, and discussed the balance of trade. He even proposed something akin to what much later emerged as game theory. In sociology he laid the ground for communication theory. In 1906, Garland published a volume of Leibniz's writings bearing on his many practical inventions and engineering work. To date, few of these writings have been translated into English. Nevertheless, it is well understood that Leibniz was a serious inventor, engineer, and applied scientist, with great respect for practical life. Following the motto theoria cum praxi, he urged that theory be combined with practical application, and thus has been claimed as the father of applied science. He designed wind-driven propellers and water pumps, mining machines to extract ore, hydraulic presses, lamps, submarines, clocks, etc. With Denis Papin, he created a steam engine. He even proposed a method for desalinating water. From 1680 to 1685, he struggled to overcome the chronic flooding that afflicted the ducal silver mines in the Harz Mountains, but did not succeed. Leibniz may have been the first computer scientist and information theorist. Early in life, he documented the binary numeral system (base 2), then revisited that system throughout his career. While Leibniz was examining other cultures to compare his metaphysical views, he encountered an ancient Chinese book I Ching. Leibniz interpreted a diagram which showed yin and yang and corresponded it to a zero and one. More information can be found in the Sinophile section. Leibniz had similarities with Juan Caramuel y Lobkowitz and Thomas Harriot, who independently developed the binary system, as he was familiar with their works on the binary system. Juan Caramuel y Lobkowitz worked extensively on logarithms including logarithms with base 2. Thomas Harriot's manuscripts contained a table of binary numbers and their notation, which demonstrated that any number could be written on a base 2 system. Regardless, Leibniz simplified the binary system and articulated logical properties such as conjunction, disjunction, negation, identity, inclusion, and the empty set. He anticipated Lagrangian interpolation and algorithmic information theory. His calculus ratiocinator anticipated aspects of the universal Turing machine. In 1961, Norbert Wiener suggested that Leibniz should be considered the patron saint of cybernetics. Wiener is quoted with "Indeed, the general idea of a computing machine is nothing but a mechanization of Leibniz's Calculus Ratiocinator." In 1671, Leibniz began to invent a machine that could execute all four arithmetic operations, gradually improving it over a number of years. This "stepped reckoner" attracted fair attention and was the basis of his election to the Royal Society in 1673. A number of such machines were made during his years in Hanover by a craftsman working under his supervision. They were not an unambiguous success because they did not fully mechanize the carry operation. Couturat reported finding an unpublished note by Leibniz, dated 1674, describing a machine capable of performing some algebraic operations. Leibniz also devised a (now reproduced) cipher machine, recovered by Nicholas Rescher in 2010. In 1693, Leibniz described a design of a machine which could, in theory, integrate differential equations, which he called "integraph". Leibniz was groping towards hardware and software concepts worked out much later by Charles Babbage and Ada Lovelace. In 1679, while mulling over his binary arithmetic, Leibniz imagined a machine in which binary numbers were represented by marbles, governed by a rudimentary sort of punched cards. Modern electronic digital computers replace Leibniz's marbles moving by gravity with shift registers, voltage gradients, and pulses of electrons, but otherwise they run roughly as Leibniz envisioned in 1679. Later in Leibniz's career (after the death of von Boyneburg), Leibniz moved to Paris and accepted a position as a librarian in the Hanoverian court of Johann Friedrich, Duke of Brunswick-Luneburg. Leibniz's predecessor, Tobias Fleischer, had already created a cataloging system for the Duke's library but it was a clumsy attempt. At this library, Leibniz focused more on advancing the library than on the cataloging. For instance, within a month of taking the new position, he developed a comprehensive plan to expand the library. He was one of the first to consider developing a core collection for a library and felt "that a library for display and ostentation is a luxury and indeed superfluous, but a well-stocked and organized library is important and useful for all areas of human endeavor and is to be regarded on the same level as schools and churches". Leibniz lacked the funds to develop the library in this manner. After working at this library, by the end of 1690 Leibniz was appointed as privy-councilor and librarian of the Bibliotheca Augusta at Wolfenbüttel. It was an extensive library with at least 25,946 printed volumes. At this library, Leibniz sought to improve the catalog. He was not allowed to make complete changes to the existing closed catalog, but was allowed to improve upon it so he started on that task immediately. He created an alphabetical author catalog and had also created other cataloging methods that were not implemented. While serving as librarian of the ducal libraries in Hanover and Wolfenbüttel, Leibniz effectively became one of the founders of library science. Seemingly, Leibniz paid a good deal of attention to the classification of subject matter, favoring a well-balance library covering a host of numerous subjects and interests. Leibniz, for example, proposed the following classification system in the Otivm Hanoveranvm Sive Miscellanea (1737). Leibniz's Idea of Arranging a Narrower Library He also designed a book indexing system in ignorance of the only other such system then extant, that of the Bodleian Library at Oxford University. He also called on publishers to distribute abstracts of all new titles they produced each year, in a standard form that would facilitate indexing. He hoped that this abstracting project would eventually include everything printed from his day back to Gutenberg. Neither proposal met with success at the time, but something like them became standard practice among English language publishers during the 20th century, under the aegis of the Library of Congress and the British Library. He called for the creation of an empirical database as a way to further all sciences. His characteristica universalis, calculus ratiocinator, and a "community of minds"—intended, among other things, to bring political and religious unity to Europe—can be seen as distant unwitting anticipations of artificial languages (e.g., Esperanto and its rivals), symbolic logic, even the World Wide Web. Leibniz emphasized that research was a collaborative endeavor. Hence he warmly advocated the formation of national scientific societies along the lines of the British Royal Society and the French Académie Royale des Sciences. More specifically, in his correspondence and travels he urged the creation of such societies in Dresden, Saint Petersburg, Vienna, and Berlin. Only one such project came to fruition; in 1700, the Berlin Academy of Sciences was created. Leibniz drew up its first statutes, and served as its first President for the remainder of his life. That Academy evolved into the German Academy of Sciences, the publisher of the ongoing critical edition of his works. Leibniz's writings on law, ethics, and politics were long overlooked by English-speaking scholars, but this has changed of late. While Leibniz was no apologist for absolute monarchy like Hobbes, or for tyranny in any form, neither did he echo the political and constitutional views of his contemporary John Locke, views invoked in support of liberalism, in 18th-century America and later elsewhere. The following excerpt from a 1695 letter to Baron J. C. Boyneburg's son Philipp is very revealing of Leibniz's political sentiments: As for ... the great question of the power of sovereigns and the obedience their peoples owe them, I usually say that it would be good for princes to be persuaded that their people have the right to resist them, and for the people, on the other hand, to be persuaded to obey them passively. I am, however, quite of the opinion of Grotius, that one ought to obey as a rule, the evil of revolution being greater beyond comparison than the evils causing it. Yet I recognize that a prince can go to such excess, and place the well-being of the state in such danger, that the obligation to endure ceases. This is most rare, however, and the theologian who authorizes violence under this pretext should take care against excess; excess being infinitely more dangerous than deficiency. In 1677, Leibniz called for a European confederation, governed by a council or senate, whose members would represent entire nations and would be free to vote their consciences; this is sometimes considered an anticipation of the European Union. He believed that Europe would adopt a uniform religion. He reiterated these proposals in 1715. But at the same time, he arrived to propose an interreligious and multicultural project to create a universal system of justice, which required from him a broad interdisciplinary perspective. In order to propose it, he combined linguistics (especially sinology), moral and legal philosophy, management, economics, and politics. Leibniz trained as a legal academic, but under the tutelage of Cartesian-sympathiser Erhard Weigel we already see an attempt to solve legal problems by rationalist mathematical methods (Weigel's influence being most explicit in the Specimen Quaestionum Philosophicarum ex Jure collectarum (An Essay of Collected Philosophical Problems of Right)). For example, the Inaugural Disputation on Perplexing Cases uses early combinatorics to solve some legal disputes, while the 1666 Dissertation on the Combinatorial Art includes simple legal problems by way of illustration. The use of combinatorial methods to solve legal and moral problems seems, via Athanasius Kircher and Daniel Schwenter to be of Llullist inspiration: Ramón Llull attempted to solve ecumenical disputes through recourse to a combinatorial mode of reasoning he regarded as universal (a mathesis universalis). In the late 1660s the enlightened Prince-Bishop of Mainz Johann Philipp von Schönborn announced a review of the legal system and made available a position to support his current law commissioner. Leibniz left Franconia and made for Mainz before even winning the role. On reaching Frankfurt am Main Leibniz penned The New Method of Teaching and Learning the Law, by way of application. The text proposed a reform of legal education and is characteristically syncretic, integrating aspects of Thomism, Hobbesianism, Cartesianism and traditional jurisprudence. Leibniz's argument that the function of legal teaching was not to impress rules as one might train a dog, but to aid the student in discovering their own public reason, evidently impressed von Schönborn as he secured the job. Leibniz's next major attempt to find a universal rational core to law and so found a legal "science of right", came when Leibniz worked in Mainz from 1667–72. Starting initially from Hobbes' mechanistic doctrine of power, Leibniz reverted to logico-combinatorial methods in an attempt to define justice. As Leibniz's so-called Elementa Juris Naturalis advanced, he built in modal notions of right (possibility) and obligation (necessity) in which we see perhaps the earliest elaboration of his possible worlds doctrine within a deontic frame. While ultimately the Elementa remained unpublished, Leibniz continued to work on his drafts and promote their ideas to correspondents up until his death. Leibniz devoted considerable intellectual and diplomatic effort to what would now be called an ecumenical endeavor, seeking to reconcile the Roman Catholic and Lutheran churches. In this respect, he followed the example of his early patrons, Baron von Boyneburg and the Duke John Frederick—both cradle Lutherans who converted to Catholicism as adults—who did what they could to encourage the reunion of the two faiths, and who warmly welcomed such endeavors by others. (The House of Brunswick remained Lutheran, because the Duke's children did not follow their father.) These efforts included corresponding with French bishop Jacques-Bénigne Bossuet, and involved Leibniz in some theological controversy. He evidently thought that the thoroughgoing application of reason would suffice to heal the breach caused by the Reformation. Leibniz the philologist was an avid student of languages, eagerly latching on to any information about vocabulary and grammar that came his way. In 1710, he applied ideas of gradualism and uniformitarianism to linguistics in a short essay. He refuted the belief, widely held by Christian scholars of the time, that Hebrew was the primeval language of the human race. At the same time, he rejected the idea of unrelated language groups and considered them all to have a common source. He also refuted the argument, advanced by Swedish scholars in his day, that a form of proto-Swedish was the ancestor of the Germanic languages. He puzzled over the origins of the Slavic languages and was fascinated by classical Chinese. Leibniz was also an expert in the Sanskrit language. He published the princeps editio (first modern edition) of the late medieval Chronicon Holtzatiae, a Latin chronicle of the County of Holstein. Leibniz was perhaps the first major European intellectual to take a close interest in Chinese civilization, which he knew by corresponding with, and reading other works by, European Christian missionaries posted in China. He apparently read Confucius Sinarum Philosophus in the first year of its publication. He came to the conclusion that Europeans could learn much from the Confucian ethical tradition. He mulled over the possibility that the Chinese characters were an unwitting form of his universal characteristic. He noted how the I Ching hexagrams correspond to the binary numbers from 000000 to 111111, and concluded that this mapping was evidence of major Chinese accomplishments in the sort of philosophical mathematics he admired. Leibniz communicated his ideas of the binary system representing Christianity to the Emperor of China, hoping it would convert him. Leibniz was one of the western philosophers of the time who attempted to accommodate Confucian ideas to prevailing European beliefs. Leibniz's attraction to Chinese philosophy originates from his perception that Chinese philosophy was similar to his own. The historian E.R. Hughes suggests that Leibniz's ideas of "simple substance" and "pre-established harmony" were directly influenced by Confucianism, pointing to the fact that they were conceived during the period when he was reading Confucius Sinarum Philosophus. While making his grand tour of European archives to research the Brunswick family history that he never completed, Leibniz stopped in Vienna between May 1688 and February 1689, where he did much legal and diplomatic work for the Brunswicks. He visited mines, talked with mine engineers, and tried to negotiate export contracts for lead from the ducal mines in the Harz mountains. His proposal that the streets of Vienna be lit with lamps burning rapeseed oil was implemented. During a formal audience with the Austrian Emperor and in subsequent memoranda, he advocated reorganizing the Austrian economy, reforming the coinage of much of central Europe, negotiating a Concordat between the Habsburgs and the Vatican, and creating an imperial research library, official archive, and public insurance fund. He wrote and published an important paper on mechanics. When Leibniz died, his reputation was in decline. He was remembered for only one book, the Théodicée, whose supposed central argument Voltaire lampooned in his popular book Candide, which concludes with the character Candide saying, "Non liquet" (it is not clear), a term that was applied during the Roman Republic to a legal verdict of "not proven". Voltaire's depiction of Leibniz's ideas was so influential that many believed it to be an accurate description. Thus Voltaire and his Candide bear some of the blame for the lingering failure to appreciate and understand Leibniz's ideas. Leibniz had an ardent disciple, Christian Wolff, whose dogmatic and facile outlook did Leibniz's reputation much harm. He also influenced David Hume, who read his Théodicée and used some of his ideas. In any event, philosophical fashion was moving away from the rationalism and system building of the 17th century, of which Leibniz had been such an ardent proponent. His work on law, diplomacy, and history was seen as of ephemeral interest. The vastness and richness of his correspondence went unrecognized. Leibniz's reputation began to recover with the 1765 publication of the Nouveaux Essais. In 1768, Louis Dutens edited the first multi-volume edition of Leibniz's writings, followed in the 19th century by a number of editions, including those edited by Erdmann, Foucher de Careil, Gerhardt, Gerland, Klopp, and Mollat. Publication of Leibniz's correspondence with notables such as Antoine Arnauld, Samuel Clarke, Sophia of Hanover, and her daughter Sophia Charlotte of Hanover, began. In 1900, Bertrand Russell published a critical study of Leibniz's metaphysics. Shortly thereafter, Louis Couturat published an important study of Leibniz, and edited a volume of Leibniz's heretofore unpublished writings, mainly on logic. They made Leibniz somewhat respectable among 20th-century analytical and linguistic philosophers in the English-speaking world (Leibniz had already been of great influence to many Germans such as Bernhard Riemann). For example, Leibniz's phrase salva veritate, meaning interchangeability without loss of or compromising the truth, recurs in Willard Quine's writings. Nevertheless, the secondary literature on Leibniz did not really blossom until after World War II. This is especially true of English speaking countries; in Gregory Brown's bibliography fewer than 30 of the English language entries were published before 1946. American Leibniz studies owe much to Leroy Loemker (1904–1985) through his translations and his interpretive essays in LeClerc (1973). Nicholas Jolley has surmised that Leibniz's reputation as a philosopher is now perhaps higher than at any time since he was alive. Analytic and contemporary philosophy continue to invoke his notions of identity, individuation, and possible worlds. Work in the history of 17th- and 18th-century ideas has revealed more clearly the 17th-century "Intellectual Revolution" that preceded the better-known Industrial and commercial revolutions of the 18th and 19th centuries. In Germany, various important institutions were named after Leibniz. In Hanover in particular, he is the namesake for some of the most important institutions in the town: outside of Hanover: Awards: In 1985, the German government created the Leibniz Prize, offering an annual award of 1.55 million euros for experimental results and 770,000 euros for theoretical ones. It was the world's largest prize for scientific achievement prior to the Fundamental Physics Prize. The collection of manuscript papers of Leibniz at the Gottfried Wilhelm Leibniz Bibliothek – Niedersächische Landesbibliothek was inscribed on UNESCO's Memory of the World Register in 2007. Leibniz still receives popular attention. The Google Doodle for 1 July 2018 celebrated Leibniz's 372nd birthday. Using a quill, his hand is shown writing "Google" in binary ASCII code. One of the earliest popular but indirect expositions of Leibniz was Voltaire's satire Candide, published in 1759. Leibniz was lampooned as Professor Pangloss, described as "the greatest philosopher of the Holy Roman Empire". Leibniz also appears as one of the main historical figures in Neal Stephenson's series of novels The Baroque Cycle. Stephenson credits readings and discussions concerning Leibniz for inspiring him to write the series. Leibniz also stars in Adam Ehrlich Sachs's novel The Organs of Sense. The German biscuit Choco Leibniz is named after Leibniz, a famous resident of Hanover where the manufacturer Bahlsen is based. Leibniz mainly wrote in three languages: scholastic Latin, French and German. During his lifetime, he published many pamphlets and scholarly articles, but only two "philosophical" books, the Combinatorial Art and the Théodicée. (He published numerous pamphlets, often anonymous, on behalf of the House of Brunswick-Lüneburg, most notably the "De jure suprematum" a major consideration of the nature of sovereignty.) One substantial book appeared posthumously, his Nouveaux essais sur l'entendement humain, which Leibniz had withheld from publication after the death of John Locke. Only in 1895, when Bodemann completed his catalogue of Leibniz's manuscripts and correspondence, did the enormous extent of Leibniz's Nachlass become clear: about 15,000 letters to more than 1000 recipients plus more than 40,000 other items. Moreover, quite a few of these letters are of essay length. Much of his vast correspondence, especially the letters dated after 1700, remains unpublished, and much of what is published has appeared only in recent decades. The more than 67,000 records of the Leibniz Edition's Catalogue cover almost all of his known writings and the letters from him and to him. The amount, variety, and disorder of Leibniz's writings are a predictable result of a situation he described in a letter as follows: I cannot tell you how extraordinarily distracted and spread out I am. I am trying to find various things in the archives; I look at old papers and hunt up unpublished documents. From these I hope to shed some light on the history of the [House of] Brunswick. I receive and answer a huge number of letters. At the same time, I have so many mathematical results, philosophical thoughts, and other literary innovations that should not be allowed to vanish that I often do not know where to begin. The extant parts of the critical edition of Leibniz's writings are organized as follows: The systematic cataloguing of all of Leibniz's Nachlass began in 1901. It was hampered by two world wars and then by decades of German division into two states with the Cold War's "iron curtain" in between, separating scholars, and also scattering portions of his literary estates. The ambitious project has had to deal with writings in seven languages, contained in some 200,000 written and printed pages. In 1985 it was reorganized and included in a joint program of German federal and state (Länder) academies. Since then the branches in Potsdam, Münster, Hanover and Berlin have jointly published 57 volumes of the critical edition, with an average of 870 pages, and prepared index and concordance works. The year given is usually that in which the work was completed, not of its eventual publication. Six important collections of English translations are Wiener (1951), Parkinson (1966), Loemker (1969), Ariew and Garber (1989), Woolhouse and Francks (1998), and Strickland (2006). The ongoing critical edition of all of Leibniz's writings is Sämtliche Schriften und Briefe. An updated bibliography of more than 25.000 titles is available at Leibniz Bibliographie.
[ { "paragraph_id": 0, "text": "Gottfried Wilhelm Leibniz (1 July 1646 [O.S. 21 June] – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat. Leibniz has been called the \"last universal genius\" due to his knowledge and skills in different fields and because such people became less common during the Industrial Revolution and spread of specialized labor after his lifetime. He is a prominent figure in both the history of philosophy and the history of mathematics. He wrote works on philosophy, theology, ethics, politics, law, history, philology, games, music, and other studies. Leibniz also made major contributions to physics and technology, and anticipated notions that surfaced much later in probability theory, biology, medicine, geology, psychology, linguistics and computer science. In addition, he contributed to the field of library science by devising a cataloguing system whilst working at Wolfenbüttel library in Germany that would have served as a guide for many of Europe's largest libraries. Leibniz's contributions to a wide range of subjects were scattered in various learned journals, in tens of thousands of letters and in unpublished manuscripts. He wrote in several languages, primarily in Latin, French and German.", "title": "" }, { "paragraph_id": 1, "text": "As a philosopher, he was a leading representative of 17th-century rationalism and idealism. As a mathematician, his major achievement was the development of the main ideas of differential and integral calculus, independently of Isaac Newton's contemporaneous developments. Mathematicians have consistently favored Leibniz's notation as the conventional and more exact expression of calculus.", "title": "" }, { "paragraph_id": 2, "text": "In the 20th century, Leibniz's notions of the law of continuity and transcendental law of homogeneity found a consistent mathematical formulation by means of non-standard analysis. He was also a pioneer in the field of mechanical calculators. While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, later used in the arithmometer, the first mass-produced mechanical calculator.", "title": "" }, { "paragraph_id": 3, "text": "In philosophy and theology, Leibniz is most noted for his optimism, i.e. his conclusion that our world is, in a qualified sense, the best possible world that God could have created, a view sometimes lampooned by other thinkers, such as Voltaire in his satirical novella Candide. Leibniz, along with René Descartes and Baruch Spinoza, was one of the three influential early modern rationalists. His philosophy also assimilates elements of the scholastic tradition, notably the assumption that some substantive knowledge of reality can be achieved by reasoning from first principles or prior definitions. The work of Leibniz anticipated modern logic and still influences contemporary analytic philosophy, such as its adopted use of the term \"possible world\" to define modal notions.", "title": "" }, { "paragraph_id": 4, "text": "Gottfried Leibniz was born on July 1 [OS: June 21], 1646, in Leipzig, Saxony, to Friedrich Leibniz and Catharina Schmuck. He was baptized two days later at St. Nicholas Church, Leipzig; his godfather was the Lutheran theologian Martin Geier [de]. His father died when he was six years old, and from that point on, Leibniz was raised by his mother.", "title": "Biography" }, { "paragraph_id": 5, "text": "Leibniz's father had been a Professor of Moral Philosophy at the University of Leipzig, where he also served as dean of philosophy. The boy inherited his father's personal library. He was given free access to it from the age of seven. While Leibniz's schoolwork was largely confined to the study of a small canon of authorities, his father's library enabled him to study a wide variety of advanced philosophical and theological works—ones that he would not have otherwise been able to read until his college years. Access to his father's library, largely written in Latin, also led to his proficiency in the Latin language, which he achieved by the age of 12. At the age of 13 he composed 300 hexameters of Latin verse in a single morning for a special event at school.", "title": "Biography" }, { "paragraph_id": 6, "text": "In April 1661 he enrolled in his father's former university at age 14. There he was guided, among others, by Jakob Thomasius, previously a student of Friedrich. Leibniz completed his bachelor's degree in Philosophy in December 1662. He defended his Disputatio Metaphysica de Principio Individui (Metaphysical Disputation on the Principle of Individuation), which addressed the principle of individuation, on 9 June 1663 [O.S. 30 May], presenting an early version of monadic substance theory. Leibniz earned his master's degree in Philosophy on 7 February 1664. In December 1664 he published and defended a dissertation Specimen Quaestionum Philosophicarum ex Jure collectarum (An Essay of Collected Philosophical Problems of Right), arguing for both a theoretical and a pedagogical relationship between philosophy and law. After one year of legal studies, he was awarded his bachelor's degree in Law on 28 September 1665. His dissertation was titled De conditionibus (On Conditions).", "title": "Biography" }, { "paragraph_id": 7, "text": "In early 1666, at age 19, Leibniz wrote his first book, De Arte Combinatoria (On the Combinatorial Art), the first part of which was also his habilitation thesis in Philosophy, which he defended in March 1666. De Arte Combinatoria was inspired by Ramon Llull's Ars Magna and contained a proof of the existence of God, cast in geometrical form, and based on the argument from motion.", "title": "Biography" }, { "paragraph_id": 8, "text": "His next goal was to earn his license and Doctorate in Law, which normally required three years of study. In 1666, the University of Leipzig turned down Leibniz's doctoral application and refused to grant him a Doctorate in Law, most likely due to his relative youth. Leibniz subsequently left Leipzig.", "title": "Biography" }, { "paragraph_id": 9, "text": "Leibniz then enrolled in the University of Altdorf and quickly submitted a thesis, which he had probably been working on earlier in Leipzig. The title of his thesis was Disputatio Inauguralis de Casibus Perplexis in Jure (Inaugural Disputation on Ambiguous Legal Cases). Leibniz earned his license to practice law and his Doctorate in Law in November 1666. He next declined the offer of an academic appointment at Altdorf, saying that \"my thoughts were turned in an entirely different direction\".", "title": "Biography" }, { "paragraph_id": 10, "text": "As an adult, Leibniz often introduced himself as \"Gottfried von Leibniz\". Many posthumously published editions of his writings presented his name on the title page as \"Freiherr G. W. von Leibniz.\" However, no document has ever been found from any contemporary government that stated his appointment to any form of nobility.", "title": "Biography" }, { "paragraph_id": 11, "text": "Leibniz's first position was as a salaried secretary to an alchemical society in Nuremberg. He knew fairly little about the subject at that time but presented himself as deeply learned. He soon met Johann Christian von Boyneburg (1622–1672), the dismissed chief minister of the Elector of Mainz, Johann Philipp von Schönborn. Von Boyneburg hired Leibniz as an assistant, and shortly thereafter reconciled with the Elector and introduced Leibniz to him. Leibniz then dedicated an essay on law to the Elector in the hope of obtaining employment. The stratagem worked; the Elector asked Leibniz to assist with the redrafting of the legal code for the Electorate. In 1669, Leibniz was appointed assessor in the Court of Appeal. Although von Boyneburg died late in 1672, Leibniz remained under the employment of his widow until she dismissed him in 1674.", "title": "Biography" }, { "paragraph_id": 12, "text": "Von Boyneburg did much to promote Leibniz's reputation, and the latter's memoranda and letters began to attract favorable notice. After Leibniz's service to the Elector there soon followed a diplomatic role. He published an essay, under the pseudonym of a fictitious Polish nobleman, arguing (unsuccessfully) for the German candidate for the Polish crown. The main force in European geopolitics during Leibniz's adult life was the ambition of Louis XIV of France, backed by French military and economic might. Meanwhile, the Thirty Years' War had left German-speaking Europe exhausted, fragmented, and economically backward. Leibniz proposed to protect German-speaking Europe by distracting Louis as follows: France would be invited to take Egypt as a stepping stone towards an eventual conquest of the Dutch East Indies. In return, France would agree to leave Germany and the Netherlands undisturbed. This plan obtained the Elector's cautious support. In 1672, the French government invited Leibniz to Paris for discussion, but the plan was soon overtaken by the outbreak of the Franco-Dutch War and became irrelevant. Napoleon's failed invasion of Egypt in 1798 can be seen as an unwitting, late implementation of Leibniz's plan, after the Eastern hemisphere colonial supremacy in Europe had already passed from the Dutch to the British.", "title": "Biography" }, { "paragraph_id": 13, "text": "Thus Leibniz went to Paris in 1672. Soon after arriving, he met Dutch physicist and mathematician Christiaan Huygens and realised that his own knowledge of mathematics and physics was patchy. With Huygens as his mentor, he began a program of self-study that soon pushed him to making major contributions to both subjects, including discovering his version of the differential and integral calculus. He met Nicolas Malebranche and Antoine Arnauld, the leading French philosophers of the day, and studied the writings of Descartes and Pascal, unpublished as well as published. He befriended a German mathematician, Ehrenfried Walther von Tschirnhaus; they corresponded for the rest of their lives.", "title": "Biography" }, { "paragraph_id": 14, "text": "When it became clear that France would not implement its part of Leibniz's Egyptian plan, the Elector sent his nephew, escorted by Leibniz, on a related mission to the English government in London, early in 1673. There Leibniz came into acquaintance of Henry Oldenburg and John Collins. He met with the Royal Society where he demonstrated a calculating machine that he had designed and had been building since 1670. The machine was able to execute all four basic operations (adding, subtracting, multiplying, and dividing), and the society quickly made him an external member.", "title": "Biography" }, { "paragraph_id": 15, "text": "The mission ended abruptly when news of the Elector's death (12 February 1673) reached them. Leibniz promptly returned to Paris and not, as had been planned, to Mainz. The sudden deaths of his two patrons in the same winter meant that Leibniz had to find a new basis for his career.", "title": "Biography" }, { "paragraph_id": 16, "text": "In this regard, a 1669 invitation from Duke John Frederick of Brunswick to visit Hanover proved to have been fateful. Leibniz had declined the invitation, but had begun corresponding with the duke in 1671. In 1673, the duke offered Leibniz the post of counsellor. Leibniz very reluctantly accepted the position two years later, only after it became clear that no employment was forthcoming in Paris, whose intellectual stimulation he relished, or with the Habsburg imperial court.", "title": "Biography" }, { "paragraph_id": 17, "text": "In 1675 he tried to get admitted to the French Academy of Sciences as a foreign honorary member, but it was considered that there were already enough foreigners there and so no invitation came. He left Paris in October 1676.", "title": "Biography" }, { "paragraph_id": 18, "text": "Leibniz managed to delay his arrival in Hanover until the end of 1676 after making one more short journey to London, where Newton accused him of having seen his unpublished work on calculus in advance. This was alleged to be evidence supporting the accusation, made decades later, that he had stolen calculus from Newton. On the journey from London to Hanover, Leibniz stopped in The Hague where he met van Leeuwenhoek, the discoverer of microorganisms. He also spent several days in intense discussion with Spinoza, who had just completed his masterwork, the Ethics.", "title": "Biography" }, { "paragraph_id": 19, "text": "In 1677, he was promoted, at his request, to Privy Counselor of Justice, a post he held for the rest of his life. Leibniz served three consecutive rulers of the House of Brunswick as historian, political adviser, and most consequentially, as librarian of the ducal library. He thenceforth employed his pen on all the various political, historical, and theological matters involving the House of Brunswick; the resulting documents form a valuable part of the historical record for the period.", "title": "Biography" }, { "paragraph_id": 20, "text": "Leibniz began promoting a project to use windmills to improve the mining operations in the Harz Mountains. This project did little to improve mining operations and was shut down by Duke Ernst August in 1685.", "title": "Biography" }, { "paragraph_id": 21, "text": "Among the few people in north Germany to accept Leibniz were the Electress Sophia of Hanover (1630–1714), her daughter Sophia Charlotte of Hanover (1668–1705), the Queen of Prussia and his avowed disciple, and Caroline of Ansbach, the consort of her grandson, the future George II. To each of these women he was correspondent, adviser, and friend. In turn, they all approved of Leibniz more than did their spouses and the future king George I of Great Britain.", "title": "Biography" }, { "paragraph_id": 22, "text": "The population of Hanover was only about 10,000, and its provinciality eventually grated on Leibniz. Nevertheless, to be a major courtier to the House of Brunswick was quite an honor, especially in light of the meteoric rise in the prestige of that House during Leibniz's association with it. In 1692, the Duke of Brunswick became a hereditary Elector of the Holy Roman Empire. The British Act of Settlement 1701 designated the Electress Sophia and her descent as the royal family of England, once both King William III and his sister-in-law and successor, Queen Anne, were dead. Leibniz played a role in the initiatives and negotiations leading up to that Act, but not always an effective one. For example, something he published anonymously in England, thinking to promote the Brunswick cause, was formally censured by the British Parliament.", "title": "Biography" }, { "paragraph_id": 23, "text": "The Brunswicks tolerated the enormous effort Leibniz devoted to intellectual pursuits unrelated to his duties as a courtier, pursuits such as perfecting calculus, writing about other mathematics, logic, physics, and philosophy, and keeping up a vast correspondence. He began working on calculus in 1674; the earliest evidence of its use in his surviving notebooks is 1675. By 1677 he had a coherent system in hand, but did not publish it until 1684. Leibniz's most important mathematical papers were published between 1682 and 1692, usually in a journal which he and Otto Mencke founded in 1682, the Acta Eruditorum. That journal played a key role in advancing his mathematical and scientific reputation, which in turn enhanced his eminence in diplomacy, history, theology, and philosophy.", "title": "Biography" }, { "paragraph_id": 24, "text": "The Elector Ernest Augustus commissioned Leibniz to write a history of the House of Brunswick, going back to the time of Charlemagne or earlier, hoping that the resulting book would advance his dynastic ambitions. From 1687 to 1690, Leibniz traveled extensively in Germany, Austria, and Italy, seeking and finding archival materials bearing on this project. Decades went by but no history appeared; the next Elector became quite annoyed at Leibniz's apparent dilatoriness. Leibniz never finished the project, in part because of his huge output on many other fronts, but also because he insisted on writing a meticulously researched and erudite book based on archival sources, when his patrons would have been quite happy with a short popular book, one perhaps little more than a genealogy with commentary, to be completed in three years or less. They never knew that he had in fact carried out a fair part of his assigned task: when the material Leibniz had written and collected for his history of the House of Brunswick was finally published in the 19th century, it filled three volumes.", "title": "Biography" }, { "paragraph_id": 25, "text": "Leibniz was appointed Librarian of the Herzog August Library in Wolfenbüttel, Lower Saxony, in 1691.", "title": "Biography" }, { "paragraph_id": 26, "text": "In 1708, John Keill, writing in the journal of the Royal Society and with Newton's presumed blessing, accused Leibniz of having plagiarised Newton's calculus. Thus began the calculus priority dispute which darkened the remainder of Leibniz's life. A formal investigation by the Royal Society (in which Newton was an unacknowledged participant), undertaken in response to Leibniz's demand for a retraction, upheld Keill's charge. Historians of mathematics writing since 1900 or so have tended to acquit Leibniz, pointing to important differences between Leibniz's and Newton's versions of calculus.", "title": "Biography" }, { "paragraph_id": 27, "text": "In 1711, while traveling in northern Europe, the Russian Tsar Peter the Great stopped in Hanover and met Leibniz, who then took some interest in Russian matters for the rest of his life. In 1712, Leibniz began a two-year residence in Vienna, where he was appointed Imperial Court Councillor to the Habsburgs. On the death of Queen Anne in 1714, Elector George Louis became King George I of Great Britain, under the terms of the 1701 Act of Settlement. Even though Leibniz had done much to bring about this happy event, it was not to be his hour of glory. Despite the intercession of the Princess of Wales, Caroline of Ansbach, George I forbade Leibniz to join him in London until he completed at least one volume of the history of the Brunswick family his father had commissioned nearly 30 years earlier. Moreover, for George I to include Leibniz in his London court would have been deemed insulting to Newton, who was seen as having won the calculus priority dispute and whose standing in British official circles could not have been higher. Finally, his dear friend and defender, the Dowager Electress Sophia, died in 1714.", "title": "Biography" }, { "paragraph_id": 28, "text": "Leibniz died in Hanover in 1716. At the time, he was so out of favor that neither George I (who happened to be near Hanover at that time) nor any fellow courtier other than his personal secretary attended the funeral. Even though Leibniz was a life member of the Royal Society and the Berlin Academy of Sciences, neither organization saw fit to honor his death. His grave went unmarked for more than 50 years. He was, however, eulogized by Fontenelle, before the French Academy of Sciences in Paris, which had admitted him as a foreign member in 1700. The eulogy was composed at the behest of the Duchess of Orleans, a niece of the Electress Sophia.", "title": "Biography" }, { "paragraph_id": 29, "text": "Leibniz never married. He proposed to an unknown woman at age 50, but changed his mind when she took too long to decide. He complained on occasion about money, but the fair sum he left to his sole heir, his sister's stepson, proved that the Brunswicks had, by and large, paid him well. In his diplomatic endeavors, he at times verged on the unscrupulous, as was all too often the case with professional diplomats of his day. On several occasions, Leibniz backdated and altered personal manuscripts, actions which put him in a bad light during the calculus controversy.", "title": "Biography" }, { "paragraph_id": 30, "text": "He was charming, well-mannered, and not without humor and imagination. He had many friends and admirers all over Europe. He was identified as a Protestant and a philosophical theist. Leibniz remained committed to Trinitarian Christianity throughout his life.", "title": "Biography" }, { "paragraph_id": 31, "text": "Leibniz's philosophical thinking appears fragmented, because his philosophical writings consist mainly of a multitude of short pieces: journal articles, manuscripts published long after his death, and many letters to many correspondents. He wrote only two book-length philosophical treatises, of which only the Théodicée of 1710 was published in his lifetime.", "title": "Philosopher" }, { "paragraph_id": 32, "text": "Leibniz dated his beginning as a philosopher to his Discourse on Metaphysics, which he composed in 1686 as a commentary on a running dispute between Nicolas Malebranche and Antoine Arnauld. This led to an extensive and valuable correspondence with Arnauld; it and the Discourse were not published until the 19th century. In 1695, Leibniz made his public entrée into European philosophy with a journal article titled \"New System of the Nature and Communication of Substances\". Between 1695 and 1705, he composed his New Essays on Human Understanding, a lengthy commentary on John Locke's 1690 An Essay Concerning Human Understanding, but upon learning of Locke's 1704 death, lost the desire to publish it, so that the New Essays were not published until 1765. The Monadologie, composed in 1714 and published posthumously, consists of 90 aphorisms.", "title": "Philosopher" }, { "paragraph_id": 33, "text": "Leibniz also wrote a short paper, \"Primae veritates\" (\"First Truths\"), first published by Louis Couturat in 1903 (pp. 518–523) summarizing his views on metaphysics. The paper is undated; that he wrote it while in Vienna in 1689 was determined only in 1999, when the ongoing critical edition finally published Leibniz's philosophical writings for the period 1677–90. Couturat's reading of this paper was the launching point for much 20th-century thinking about Leibniz, especially among analytic philosophers. But after a meticulous study of all of Leibniz's philosophical writings up to 1688—a study the 1999 additions to the critical edition made possible—Mercer (2001) begged to differ with Couturat's reading; the jury is still out.", "title": "Philosopher" }, { "paragraph_id": 34, "text": "Leibniz met Spinoza in 1676, read some of his unpublished writings, and had since been influenced by some of Spinoza's ideas. While Leibniz befriended him and admired Spinoza's powerful intellect, he was also forthrightly dismayed by Spinoza's conclusions, especially when these were inconsistent with Christian orthodoxy.", "title": "Philosopher" }, { "paragraph_id": 35, "text": "Unlike Descartes and Spinoza, Leibniz had a thorough university education in philosophy. He was influenced by his Leipzig professor Jakob Thomasius, who also supervised his BA thesis in philosophy. Leibniz also eagerly read Francisco Suárez, a Spanish Jesuit respected even in Lutheran universities. Leibniz was deeply interested in the new methods and conclusions of Descartes, Huygens, Newton, and Boyle, but viewed their work through a lens heavily tinted by scholastic notions. Yet it remains the case that Leibniz's methods and concerns often anticipate the logic, and analytic and linguistic philosophy of the 20th century.", "title": "Philosopher" }, { "paragraph_id": 36, "text": "Leibniz variously invoked one or another of seven fundamental philosophical Principles:", "title": "Philosopher" }, { "paragraph_id": 37, "text": "Leibniz would on occasion give a rational defense of a specific principle, but more often took them for granted.", "title": "Philosopher" }, { "paragraph_id": 38, "text": "Leibniz's best known contribution to metaphysics is his theory of monads, as exposited in Monadologie. He proposes his theory that the universe is made of an infinite number of simple substances known as monads. Monads can also be compared to the corpuscles of the mechanical philosophy of René Descartes and others. These simple substances or monads are the \"ultimate units of existence in nature\". Monads have no parts but still exist by the qualities that they have. These qualities are continuously changing over time, and each monad is unique. They are also not affected by time and are subject to only creation and annihilation. Monads are centers of force; substance is force, while space, matter, and motion are merely phenomenal. It is said that he anticipated Albert Einstein by arguing, against Newton, that space, time, and motion are completely relative as he quipped, \"As for my own opinion, I have said more than once, that I hold space to be something merely relative, as time is, that I hold it to be an order of coexistences, as time is an order of successions.\" Einstein, who called himself a \"Leibnizian\" even wrote in the introduction to Max Jammer's book Concepts of Space that Leibnizianism was superior to Newtonianism, and his ideas would have dominated over Newton's had it not been for the poor technological tools of the time; it has been argued that Leibniz paved the way for Einstein's theory of relativity.", "title": "Philosopher" }, { "paragraph_id": 39, "text": "Leibniz's proof of God can be summarized in the Théodicée. Reason is governed by the principle of contradiction and the principle of sufficient reason. Using the principle of reasoning, Leibniz concluded that the first reason of all things is God. All that we see and experience is subject to change, and the fact that this world is contingent can be explained by the possibility of the world being arranged differently in space and time. The contingent world must have some necessary reason for its existence. Leibniz uses a geometry book as an example to explain his reasoning. If this book was copied from an infinite chain of copies, there must be some reason for the content of the book. Leibniz concluded that there must be the \"monas monadum\" or God.", "title": "Philosopher" }, { "paragraph_id": 40, "text": "The ontological essence of a monad is its irreducible simplicity. Unlike atoms, monads possess no material or spatial character. They also differ from atoms by their complete mutual independence, so that interactions among monads are only apparent. Instead, by virtue of the principle of pre-established harmony, each monad follows a pre-programmed set of \"instructions\" peculiar to itself, so that a monad \"knows\" what to do at each moment. By virtue of these intrinsic instructions, each monad is like a little mirror of the universe. Monads need not be \"small\"; e.g., each human being constitutes a monad, in which case free will is problematic.", "title": "Philosopher" }, { "paragraph_id": 41, "text": "Monads are purported to have gotten rid of the problematic:", "title": "Philosopher" }, { "paragraph_id": 42, "text": "The Theodicy tries to justify the apparent imperfections of the world by claiming that it is optimal among all possible worlds. It must be the best possible and most balanced world, because it was created by an all powerful and all knowing God, who would not choose to create an imperfect world if a better world could be known to him or possible to exist. In effect, apparent flaws that can be identified in this world must exist in every possible world, because otherwise God would have chosen to create the world that excluded those flaws.", "title": "Philosopher" }, { "paragraph_id": 43, "text": "Leibniz asserted that the truths of theology (religion) and philosophy cannot contradict each other, since reason and faith are both \"gifts of God\" so that their conflict would imply God contending against himself. The Theodicy is Leibniz's attempt to reconcile his personal philosophical system with his interpretation of the tenets of Christianity. This project was motivated in part by Leibniz's belief, shared by many philosophers and theologians during the Enlightenment, in the rational and enlightened nature of the Christian religion. It was also shaped by Leibniz's belief in the perfectibility of human nature (if humanity relied on correct philosophy and religion as a guide), and by his belief that metaphysical necessity must have a rational or logical foundation, even if this metaphysical causality seemed inexplicable in terms of physical necessity (the natural laws identified by science).", "title": "Philosopher" }, { "paragraph_id": 44, "text": "Because reason and faith must be entirely reconciled, any tenet of faith which could not be defended by reason must be rejected. Leibniz then approached one of the central criticisms of Christian theism: if God is all good, all wise, and all powerful, then how did evil come into the world? The answer (according to Leibniz) is that, while God is indeed unlimited in wisdom and power, his human creations, as creations, are limited both in their wisdom and in their will (power to act). This predisposes humans to false beliefs, wrong decisions, and ineffective actions in the exercise of their free will. God does not arbitrarily inflict pain and suffering on humans; rather he permits both moral evil (sin) and physical evil (pain and suffering) as the necessary consequences of metaphysical evil (imperfection), as a means by which humans can identify and correct their erroneous decisions, and as a contrast to true good.", "title": "Philosopher" }, { "paragraph_id": 45, "text": "Further, although human actions flow from prior causes that ultimately arise in God and therefore are known to God as metaphysical certainties, an individual's free will is exercised within natural laws, where choices are merely contingently necessary and to be decided in the event by a \"wonderful spontaneity\" that provides individuals with an escape from rigorous predestination.", "title": "Philosopher" }, { "paragraph_id": 46, "text": "For Leibniz, \"God is an absolutely perfect being\". He describes this perfection later in section VI as the simplest form of something with the most substantial outcome (VI). Along these lines, he declares that every type of perfection \"pertains to him (God) in the highest degree\" (I). Even though his types of perfections are not specifically drawn out, Leibniz highlights the one thing that, to him, does certify imperfections and proves that God is perfect: \"that one acts imperfectly if he acts with less perfection than he is capable of\", and since God is a perfect being, he cannot act imperfectly (III). Because God cannot act imperfectly, the decisions he makes pertaining to the world must be perfect. Leibniz also comforts readers, stating that because he has done everything to the most perfect degree; those who love him cannot be injured. However, to love God is a subject of difficulty as Leibniz believes that we are \"not disposed to wish for that which God desires\" because we have the ability to alter our disposition (IV). In accordance with this, many act as rebels, but Leibniz says that the only way we can truly love God is by being content \"with all that comes to us according to his will\" (IV).", "title": "Philosopher" }, { "paragraph_id": 47, "text": "Because God is \"an absolutely perfect being\" (I), Leibniz argues that God would be acting imperfectly if he acted with any less perfection than what he is able of (III). His syllogism then ends with the statement that God has made the world perfectly in all ways. This also affects how we should view God and his will. Leibniz states that, in lieu of God's will, we have to understand that God \"is the best of all masters\" and he will know when his good succeeds, so we, therefore, must act in conformity to his good will—or as much of it as we understand (IV). In our view of God, Leibniz declares that we cannot admire the work solely because of the maker, lest we mar the glory and love God in doing so. Instead, we must admire the maker for the work he has done (II). Effectively, Leibniz states that if we say the earth is good because of the will of God, and not good according to some standards of goodness, then how can we praise God for what he has done if contrary actions are also praiseworthy by this definition (II). Leibniz then asserts that different principles and geometry cannot simply be from the will of God, but must follow from his understanding.", "title": "Philosopher" }, { "paragraph_id": 48, "text": "Leibniz wrote: \"Why is there something rather than nothing? The sufficient reason ... is found in a substance which ... is a necessary being bearing the reason for its existence within itself.\" Martin Heidegger called this question \"the fundamental question of metaphysics\".", "title": "Philosopher" }, { "paragraph_id": 49, "text": "Leibniz believed that much of human reasoning could be reduced to calculations of a sort, and that such calculations could resolve many differences of opinion:", "title": "Philosopher" }, { "paragraph_id": 50, "text": "The only way to rectify our reasonings is to make them as tangible as those of the Mathematicians, so that we can find our error at a glance, and when there are disputes among persons, we can simply say: Let us calculate, without further ado, to see who is right.", "title": "Philosopher" }, { "paragraph_id": 51, "text": "Leibniz's calculus ratiocinator, which resembles symbolic logic, can be viewed as a way of making such calculations feasible. Leibniz wrote memoranda that can now be read as groping attempts to get symbolic logic—and thus his calculus—off the ground. These writings remained unpublished until the appearance of a selection edited by Carl Immanuel Gerhardt (1859). Louis Couturat published a selection in 1901; by this time the main developments of modern logic had been created by Charles Sanders Peirce and by Gottlob Frege.", "title": "Philosopher" }, { "paragraph_id": 52, "text": "Leibniz thought symbols were important for human understanding. He attached so much importance to the development of good notations that he attributed all his discoveries in mathematics to this. His notation for calculus is an example of his skill in this regard. Leibniz's passion for symbols and notation, as well as his belief that these are essential to a well-running logic and mathematics, made him a precursor of semiotics.", "title": "Philosopher" }, { "paragraph_id": 53, "text": "But Leibniz took his speculations much further. Defining a character as any written sign, he then defined a \"real\" character as one that represents an idea directly and not simply as the word embodying the idea. Some real characters, such as the notation of logic, serve only to facilitate reasoning. Many characters well known in his day, including Egyptian hieroglyphics, Chinese characters, and the symbols of astronomy and chemistry, he deemed not real. Instead, he proposed the creation of a characteristica universalis or \"universal characteristic\", built on an alphabet of human thought in which each fundamental concept would be represented by a unique \"real\" character:", "title": "Philosopher" }, { "paragraph_id": 54, "text": "It is obvious that if we could find characters or signs suited for expressing all our thoughts as clearly and as exactly as arithmetic expresses numbers or geometry expresses lines, we could do in all matters insofar as they are subject to reasoning all that we can do in arithmetic and geometry. For all investigations which depend on reasoning would be carried out by transposing these characters and by a species of calculus.", "title": "Philosopher" }, { "paragraph_id": 55, "text": "Complex thoughts would be represented by combining characters for simpler thoughts. Leibniz saw that the uniqueness of prime factorization suggests a central role for prime numbers in the universal characteristic, a striking anticipation of Gödel numbering. Granted, there is no intuitive or mnemonic way to number any set of elementary concepts using the prime numbers.", "title": "Philosopher" }, { "paragraph_id": 56, "text": "Because Leibniz was a mathematical novice when he first wrote about the characteristic, at first he did not conceive it as an algebra but rather as a universal language or script. Only in 1676 did he conceive of a kind of \"algebra of thought\", modeled on and including conventional algebra and its notation. The resulting characteristic included a logical calculus, some combinatorics, algebra, his analysis situs (geometry of situation), a universal concept language, and more. What Leibniz actually intended by his characteristica universalis and calculus ratiocinator, and the extent to which modern formal logic does justice to calculus, may never be established. Leibniz's idea of reasoning through a universal language of symbols and calculations remarkably foreshadows great 20th-century developments in formal systems, such as Turing completeness, where computation was used to define equivalent universal languages (see Turing degree).", "title": "Philosopher" }, { "paragraph_id": 57, "text": "Leibniz has been noted as one of the most important logicians between the times of Aristotle and Gottlob Frege. Leibniz enunciated the principal properties of what we now call conjunction, disjunction, negation, identity, set inclusion, and the empty set. The principles of Leibniz's logic and, arguably, of his whole philosophy, reduce to two:", "title": "Philosopher" }, { "paragraph_id": 58, "text": "The formal logic that emerged early in the 20th century also requires, at minimum, unary negation and quantified variables ranging over some universe of discourse.", "title": "Philosopher" }, { "paragraph_id": 59, "text": "Leibniz published nothing on formal logic in his lifetime; most of what he wrote on the subject consists of working drafts. In his History of Western Philosophy, Bertrand Russell went so far as to claim that Leibniz had developed logic in his unpublished writings to a level which was reached only 200 years later.", "title": "Philosopher" }, { "paragraph_id": 60, "text": "Russell's principal work on Leibniz found that many of Leibniz's most startling philosophical ideas and claims (e.g., that each of the fundamental monads mirrors the whole universe) follow logically from Leibniz's conscious choice to reject relations between things as unreal. He regarded such relations as (real) qualities of things (Leibniz admitted unary predicates only): For him, \"Mary is the mother of John\" describes separate qualities of Mary and of John. This view contrasts with the relational logic of De Morgan, Peirce, Schröder and Russell himself, now standard in predicate logic. Notably, Leibniz also declared space and time to be inherently relational.", "title": "Philosopher" }, { "paragraph_id": 61, "text": "Leibniz's 1690 discovery of his algebra of concepts (deductively equivalent to the Boolean algebra) and the associated metaphysics, are of interest in present-day computational metaphysics.", "title": "Philosopher" }, { "paragraph_id": 62, "text": "Although the mathematical notion of function was implicit in trigonometric and logarithmic tables, which existed in his day, Leibniz was the first, in 1692 and 1694, to employ it explicitly, to denote any of several geometric concepts derived from a curve, such as abscissa, ordinate, tangent, chord, and the perpendicular (see History of the function concept). In the 18th century, \"function\" lost these geometrical associations. Leibniz also believed that the sum of an infinite number of zeros would be equal to one half using the analogy of the creation of the world from nothing. Leibniz was also one of the pioneers in actuarial science, calculating the purchase price of life annuities and the liquidation of a state's debt.", "title": "Mathematician" }, { "paragraph_id": 63, "text": "Leibniz's research into formal logic, also relevant to mathematics, is discussed in the preceding section. The best overview of Leibniz's writings on calculus may be found in Bos (1974).", "title": "Mathematician" }, { "paragraph_id": 64, "text": "Leibniz, who invented one of the earliest mechanical calculators, said of calculation: \"For it is unworthy of excellent men to lose hours like slaves in the labor of calculation which could safely be relegated to anyone else if machines were used.\"", "title": "Mathematician" }, { "paragraph_id": 65, "text": "Leibniz arranged the coefficients of a system of linear equations into an array, now called a matrix, in order to find a solution to the system if it existed. This method was later called Gaussian elimination. Leibniz laid down the foundations and theory of determinants, although the Japanese mathematician Seki Takakazu also discovered determinants independently of Leibniz. His works show calculating the determinants using cofactors. Calculating the determinant using cofactors is named the Leibniz formula. Finding the determinant of a matrix using this method proves impractical with large n, requiring to calculate n! products and the number of n-permutations. He also solved systems of linear equations using determinants, which is now called Cramer's rule. This method for solving systems of linear equations based on determinants was found in 1684 by Leibniz (Cramer published his findings in 1750). Although Gaussian elimination requires O ( n 3 ) {\\displaystyle O(n^{3})} arithmetic operations, linear algebra textbooks still teach cofactor expansion before LU factorization.", "title": "Mathematician" }, { "paragraph_id": 66, "text": "The Leibniz formula for π states that", "title": "Mathematician" }, { "paragraph_id": 67, "text": "Leibniz wrote that circles \"can most simply be expressed by this series, that is, the aggregate of fractions alternately added and subtracted\". However this formula is only accurate with a large number of terms, using 10,000,000 terms to obtain the correct value of π/4 to 8 decimal places. Leibniz attempted to create a definition for a straight line while attempting to prove the parallel postulate. While most mathematicians defined a straight line as the shortest line between two points, Leibniz believed that this was merely a property of a straight line rather than the definition.", "title": "Mathematician" }, { "paragraph_id": 68, "text": "Leibniz is credited, along with Isaac Newton, with the discovery of calculus (differential and integral calculus). According to Leibniz's notebooks, a critical breakthrough occurred on 11 November 1675, when he employed integral calculus for the first time to find the area under the graph of a function y = f(x). He introduced several notations used to this day, for instance the integral sign ∫ ( ∫ f ( x ) d x {\\displaystyle \\displaystyle \\int f(x)\\,dx} ), representing an elongated S, from the Latin word summa, and the d used for differentials ( d y d x {\\displaystyle {\\frac {dy}{dx}}} ), from the Latin word differentia. Leibniz did not publish anything about his calculus until 1684. Leibniz expressed the inverse relation of integration and differentiation, later called the fundamental theorem of calculus, by means of a figure in his 1693 paper Supplementum geometriae dimensoriae.... However, James Gregory is credited for the theorem's discovery in geometric form, Isaac Barrow proved a more generalized geometric version, and Newton developed supporting theory. The concept became more transparent as developed through Leibniz's formalism and new notation. The product rule of differential calculus is still called \"Leibniz's law\". In addition, the theorem that tells how and when to differentiate under the integral sign is called the Leibniz integral rule.", "title": "Mathematician" }, { "paragraph_id": 69, "text": "Leibniz exploited infinitesimals in developing calculus, manipulating them in ways suggesting that they had paradoxical algebraic properties. George Berkeley, in a tract called The Analyst and also in De Motu, criticized these. A recent study argues that Leibnizian calculus was free of contradictions, and was better grounded than Berkeley's empiricist criticisms.", "title": "Mathematician" }, { "paragraph_id": 70, "text": "From 1711 until his death, Leibniz was engaged in a dispute with John Keill, Newton and others, over whether Leibniz had invented calculus independently of Newton.", "title": "Mathematician" }, { "paragraph_id": 71, "text": "The use of infinitesimals in mathematics was frowned upon by followers of Karl Weierstrass, but survived in science and engineering, and even in rigorous mathematics, via the fundamental computational device known as the differential. Beginning in 1960, Abraham Robinson worked out a rigorous foundation for Leibniz's infinitesimals, using model theory, in the context of a field of hyperreal numbers. The resulting non-standard analysis can be seen as a belated vindication of Leibniz's mathematical reasoning. Robinson's transfer principle is a mathematical implementation of Leibniz's heuristic law of continuity, while the standard part function implements the Leibnizian transcendental law of homogeneity.", "title": "Mathematician" }, { "paragraph_id": 72, "text": "Leibniz was the first to use the term analysis situs, later used in the 19th century to refer to what is now known as topology. There are two takes on this situation. On the one hand, Mates, citing a 1954 paper in German by Jacob Freudenthal, argues:", "title": "Mathematician" }, { "paragraph_id": 73, "text": "Although for Leibniz the situs of a sequence of points is completely determined by the distance between them and is altered if those distances are altered, his admirer Euler, in the famous 1736 paper solving the Königsberg Bridge Problem and its generalizations, used the term geometria situs in such a sense that the situs remains unchanged under topological deformations. He mistakenly credits Leibniz with originating this concept. ... [It] is sometimes not realized that Leibniz used the term in an entirely different sense and hence can hardly be considered the founder of that part of mathematics.", "title": "Mathematician" }, { "paragraph_id": 74, "text": "But Hideaki Hirano argues differently, quoting Mandelbrot:", "title": "Mathematician" }, { "paragraph_id": 75, "text": "To sample Leibniz' scientific works is a sobering experience. Next to calculus, and to other thoughts that have been carried out to completion, the number and variety of premonitory thrusts is overwhelming. We saw examples in \"packing\", ... My Leibniz mania is further reinforced by finding that for one moment its hero attached importance to geometric scaling. In Euclidis Prota ..., which is an attempt to tighten Euclid's axioms, he states ...: \"I have diverse definitions for the straight line. The straight line is a curve, any part of which is similar to the whole, and it alone has this property, not only among curves but among sets.\" This claim can be proved today.", "title": "Mathematician" }, { "paragraph_id": 76, "text": "Thus the fractal geometry promoted by Mandelbrot drew on Leibniz's notions of self-similarity and the principle of continuity: Natura non facit saltus. We also see that when Leibniz wrote, in a metaphysical vein, that \"the straight line is a curve, any part of which is similar to the whole\", he was anticipating topology by more than two centuries. As for \"packing\", Leibniz told his friend and correspondent Des Bosses to imagine a circle, then to inscribe within it three congruent circles with maximum radius; the latter smaller circles could be filled with three even smaller circles by the same procedure. This process can be continued infinitely, from which arises a good idea of self-similarity. Leibniz's improvement of Euclid's axiom contains the same concept.", "title": "Mathematician" }, { "paragraph_id": 77, "text": "Leibniz's writings are currently discussed, not only for their anticipations and possible discoveries not yet recognized, but as ways of advancing present knowledge. Much of his writing on physics is included in Gerhardt's Mathematical Writings.", "title": "Scientist and engineer" }, { "paragraph_id": 78, "text": "Leibniz contributed a fair amount to the statics and dynamics emerging around him, often disagreeing with Descartes and Newton. He devised a new theory of motion (dynamics) based on kinetic energy and potential energy, which posited space as relative, whereas Newton was thoroughly convinced that space was absolute. An important example of Leibniz's mature physical thinking is his Specimen Dynamicum of 1695.", "title": "Scientist and engineer" }, { "paragraph_id": 79, "text": "Until the discovery of subatomic particles and the quantum mechanics governing them, many of Leibniz's speculative ideas about aspects of nature not reducible to statics and dynamics made little sense. For instance, he anticipated Albert Einstein by arguing, against Newton, that space, time and motion are relative, not absolute: \"As for my own opinion, I have said more than once, that I hold space to be something merely relative, as time is, that I hold it to be an order of coexistences, as time is an order of successions.\"", "title": "Scientist and engineer" }, { "paragraph_id": 80, "text": "Leibniz held a relationist notion of space and time, against Newton's substantivalist views. According to Newton's substantivalism, space and time are entities in their own right, existing independently of things. Leibniz's relationism, in contrast, describes space and time as systems of relations that exist between objects. The rise of general relativity and subsequent work in the history of physics has put Leibniz's stance in a more favorable light.", "title": "Scientist and engineer" }, { "paragraph_id": 81, "text": "One of Leibniz's projects was to recast Newton's theory as a vortex theory. However, his project went beyond vortex theory, since at its heart there was an attempt to explain one of the most difficult problems in physics, that of the origin of the cohesion of matter.", "title": "Scientist and engineer" }, { "paragraph_id": 82, "text": "The principle of sufficient reason has been invoked in recent cosmology, and his identity of indiscernibles in quantum mechanics, a field some even credit him with having anticipated in some sense. In addition to his theories about the nature of reality, Leibniz's contributions to the development of calculus have also had a major impact on physics.", "title": "Scientist and engineer" }, { "paragraph_id": 83, "text": "Leibniz's vis viva (Latin for \"living force\") is mv, twice the modern kinetic energy. He realized that the total energy would be conserved in certain mechanical systems, so he considered it an innate motive characteristic of matter. Here too his thinking gave rise to another regrettable nationalistic dispute. His vis viva was seen as rivaling the conservation of momentum championed by Newton in England and by Descartes and Voltaire in France; hence academics in those countries tended to neglect Leibniz's idea. Leibniz knew of the validity of conservation of momentum. In reality, both energy and momentum are conserved (in closed systems), so both approaches are valid.", "title": "Scientist and engineer" }, { "paragraph_id": 84, "text": "By proposing that the earth has a molten core, he anticipated modern geology. In embryology, he was a preformationist, but also proposed that organisms are the outcome of a combination of an infinite number of possible microstructures and of their powers. In the life sciences and paleontology, he revealed an amazing transformist intuition, fueled by his study of comparative anatomy and fossils. One of his principal works on this subject, Protogaea, unpublished in his lifetime, has recently been published in English for the first time. He worked out a primal organismic theory. In medicine, he exhorted the physicians of his time—with some results—to ground their theories in detailed comparative observations and verified experiments, and to distinguish firmly scientific and metaphysical points of view.", "title": "Scientist and engineer" }, { "paragraph_id": 85, "text": "Psychology had been a central interest of Leibniz. He appears to be an \"underappreciated pioneer of psychology\" He wrote on topics which are now regarded as fields of psychology: attention and consciousness, memory, learning (association), motivation (the act of \"striving\"), emergent individuality, the general dynamics of development (evolutionary psychology). His discussions in the New Essays and Monadology often rely on everyday observations such as the behaviour of a dog or the noise of the sea, and he develops intuitive analogies (the synchronous running of clocks or the balance spring of a clock). He also devised postulates and principles that apply to psychology: the continuum of the unnoticed petites perceptions to the distinct, self-aware apperception, and psychophysical parallelism from the point of view of causality and of purpose: \"Souls act according to the laws of final causes, through aspirations, ends and means. Bodies act according to the laws of efficient causes, i.e. the laws of motion. And these two realms, that of efficient causes and that of final causes, harmonize with one another.\" This idea refers to the mind-body problem, stating that the mind and brain do not act upon each other, but act alongside each other separately but in harmony. Leibniz, however, did not use the term psychologia. Leibniz's epistemological position—against John Locke and English empiricism (sensualism)—was made clear: \"Nihil est in intellectu quod non fuerit in sensu, nisi intellectu ipse.\" – \"Nothing is in the intellect that was not first in the senses, except the intellect itself.\" Principles that are not present in sensory impressions can be recognised in human perception and consciousness: logical inferences, categories of thought, the principle of causality and the principle of purpose (teleology).", "title": "Scientist and engineer" }, { "paragraph_id": 86, "text": "Leibniz found his most important interpreter in Wilhelm Wundt, founder of psychology as a discipline. Wundt used the \"… nisi intellectu ipse\" quotation 1862 on the title page of his Beiträge zur Theorie der Sinneswahrnehmung (Contributions on the Theory of Sensory Perception) and published a detailed and aspiring monograph on Leibniz. Wundt shaped the term apperception, introduced by Leibniz, into an experimental psychologically based apperception psychology that included neuropsychological modelling – an excellent example of how a concept created by a great philosopher could stimulate a psychological research program. One principle in the thinking of Leibniz played a fundamental role: \"the principle of equality of separate but corresponding viewpoints.\" Wundt characterized this style of thought (perspectivism) in a way that also applied for him—viewpoints that \"supplement one another, while also being able to appear as opposites that only resolve themselves when considered more deeply.\" Much of Leibniz's work went on to have a great impact on the field of psychology. Leibniz thought that there are many petites perceptions, or small perceptions of which we perceive but of which we are unaware. He believed that by the principle that phenomena found in nature were continuous by default, it was likely that the transition between conscious and unconscious states had intermediary steps. For this to be true, there must also be a portion of the mind of which we are unaware at any given time. His theory regarding consciousness in relation to the principle of continuity can be seen as an early theory regarding the stages of sleep. In this way, Leibniz's theory of perception can be viewed as one of many theories leading up to the idea of the unconscious. Leibniz was a direct influence on Ernst Platner, who is credited with originally coining the term Unbewußtseyn (unconscious). Additionally, the idea of subliminal stimuli can be traced back to his theory of small perceptions. Leibniz's ideas regarding music and tonal perception went on to influence the laboratory studies of Wilhelm Wundt.", "title": "Scientist and engineer" }, { "paragraph_id": 87, "text": "In public health, he advocated establishing a medical administrative authority, with powers over epidemiology and veterinary medicine. He worked to set up a coherent medical training program, oriented towards public health and preventive measures. In economic policy, he proposed tax reforms and a national insurance program, and discussed the balance of trade. He even proposed something akin to what much later emerged as game theory. In sociology he laid the ground for communication theory.", "title": "Scientist and engineer" }, { "paragraph_id": 88, "text": "In 1906, Garland published a volume of Leibniz's writings bearing on his many practical inventions and engineering work. To date, few of these writings have been translated into English. Nevertheless, it is well understood that Leibniz was a serious inventor, engineer, and applied scientist, with great respect for practical life. Following the motto theoria cum praxi, he urged that theory be combined with practical application, and thus has been claimed as the father of applied science. He designed wind-driven propellers and water pumps, mining machines to extract ore, hydraulic presses, lamps, submarines, clocks, etc. With Denis Papin, he created a steam engine. He even proposed a method for desalinating water. From 1680 to 1685, he struggled to overcome the chronic flooding that afflicted the ducal silver mines in the Harz Mountains, but did not succeed.", "title": "Scientist and engineer" }, { "paragraph_id": 89, "text": "Leibniz may have been the first computer scientist and information theorist. Early in life, he documented the binary numeral system (base 2), then revisited that system throughout his career. While Leibniz was examining other cultures to compare his metaphysical views, he encountered an ancient Chinese book I Ching. Leibniz interpreted a diagram which showed yin and yang and corresponded it to a zero and one. More information can be found in the Sinophile section. Leibniz had similarities with Juan Caramuel y Lobkowitz and Thomas Harriot, who independently developed the binary system, as he was familiar with their works on the binary system. Juan Caramuel y Lobkowitz worked extensively on logarithms including logarithms with base 2. Thomas Harriot's manuscripts contained a table of binary numbers and their notation, which demonstrated that any number could be written on a base 2 system. Regardless, Leibniz simplified the binary system and articulated logical properties such as conjunction, disjunction, negation, identity, inclusion, and the empty set. He anticipated Lagrangian interpolation and algorithmic information theory. His calculus ratiocinator anticipated aspects of the universal Turing machine. In 1961, Norbert Wiener suggested that Leibniz should be considered the patron saint of cybernetics. Wiener is quoted with \"Indeed, the general idea of a computing machine is nothing but a mechanization of Leibniz's Calculus Ratiocinator.\"", "title": "Scientist and engineer" }, { "paragraph_id": 90, "text": "In 1671, Leibniz began to invent a machine that could execute all four arithmetic operations, gradually improving it over a number of years. This \"stepped reckoner\" attracted fair attention and was the basis of his election to the Royal Society in 1673. A number of such machines were made during his years in Hanover by a craftsman working under his supervision. They were not an unambiguous success because they did not fully mechanize the carry operation. Couturat reported finding an unpublished note by Leibniz, dated 1674, describing a machine capable of performing some algebraic operations. Leibniz also devised a (now reproduced) cipher machine, recovered by Nicholas Rescher in 2010. In 1693, Leibniz described a design of a machine which could, in theory, integrate differential equations, which he called \"integraph\".", "title": "Scientist and engineer" }, { "paragraph_id": 91, "text": "Leibniz was groping towards hardware and software concepts worked out much later by Charles Babbage and Ada Lovelace. In 1679, while mulling over his binary arithmetic, Leibniz imagined a machine in which binary numbers were represented by marbles, governed by a rudimentary sort of punched cards. Modern electronic digital computers replace Leibniz's marbles moving by gravity with shift registers, voltage gradients, and pulses of electrons, but otherwise they run roughly as Leibniz envisioned in 1679.", "title": "Scientist and engineer" }, { "paragraph_id": 92, "text": "Later in Leibniz's career (after the death of von Boyneburg), Leibniz moved to Paris and accepted a position as a librarian in the Hanoverian court of Johann Friedrich, Duke of Brunswick-Luneburg. Leibniz's predecessor, Tobias Fleischer, had already created a cataloging system for the Duke's library but it was a clumsy attempt. At this library, Leibniz focused more on advancing the library than on the cataloging. For instance, within a month of taking the new position, he developed a comprehensive plan to expand the library. He was one of the first to consider developing a core collection for a library and felt \"that a library for display and ostentation is a luxury and indeed superfluous, but a well-stocked and organized library is important and useful for all areas of human endeavor and is to be regarded on the same level as schools and churches\". Leibniz lacked the funds to develop the library in this manner. After working at this library, by the end of 1690 Leibniz was appointed as privy-councilor and librarian of the Bibliotheca Augusta at Wolfenbüttel. It was an extensive library with at least 25,946 printed volumes. At this library, Leibniz sought to improve the catalog. He was not allowed to make complete changes to the existing closed catalog, but was allowed to improve upon it so he started on that task immediately. He created an alphabetical author catalog and had also created other cataloging methods that were not implemented. While serving as librarian of the ducal libraries in Hanover and Wolfenbüttel, Leibniz effectively became one of the founders of library science. Seemingly, Leibniz paid a good deal of attention to the classification of subject matter, favoring a well-balance library covering a host of numerous subjects and interests. Leibniz, for example, proposed the following classification system in the Otivm Hanoveranvm Sive Miscellanea (1737).", "title": "Scientist and engineer" }, { "paragraph_id": 93, "text": "Leibniz's Idea of Arranging a Narrower Library", "title": "Scientist and engineer" }, { "paragraph_id": 94, "text": "He also designed a book indexing system in ignorance of the only other such system then extant, that of the Bodleian Library at Oxford University. He also called on publishers to distribute abstracts of all new titles they produced each year, in a standard form that would facilitate indexing. He hoped that this abstracting project would eventually include everything printed from his day back to Gutenberg. Neither proposal met with success at the time, but something like them became standard practice among English language publishers during the 20th century, under the aegis of the Library of Congress and the British Library.", "title": "Scientist and engineer" }, { "paragraph_id": 95, "text": "He called for the creation of an empirical database as a way to further all sciences. His characteristica universalis, calculus ratiocinator, and a \"community of minds\"—intended, among other things, to bring political and religious unity to Europe—can be seen as distant unwitting anticipations of artificial languages (e.g., Esperanto and its rivals), symbolic logic, even the World Wide Web.", "title": "Scientist and engineer" }, { "paragraph_id": 96, "text": "Leibniz emphasized that research was a collaborative endeavor. Hence he warmly advocated the formation of national scientific societies along the lines of the British Royal Society and the French Académie Royale des Sciences. More specifically, in his correspondence and travels he urged the creation of such societies in Dresden, Saint Petersburg, Vienna, and Berlin. Only one such project came to fruition; in 1700, the Berlin Academy of Sciences was created. Leibniz drew up its first statutes, and served as its first President for the remainder of his life. That Academy evolved into the German Academy of Sciences, the publisher of the ongoing critical edition of his works.", "title": "Scientist and engineer" }, { "paragraph_id": 97, "text": "Leibniz's writings on law, ethics, and politics were long overlooked by English-speaking scholars, but this has changed of late.", "title": "Lawyer and moralist" }, { "paragraph_id": 98, "text": "While Leibniz was no apologist for absolute monarchy like Hobbes, or for tyranny in any form, neither did he echo the political and constitutional views of his contemporary John Locke, views invoked in support of liberalism, in 18th-century America and later elsewhere. The following excerpt from a 1695 letter to Baron J. C. Boyneburg's son Philipp is very revealing of Leibniz's political sentiments:", "title": "Lawyer and moralist" }, { "paragraph_id": 99, "text": "As for ... the great question of the power of sovereigns and the obedience their peoples owe them, I usually say that it would be good for princes to be persuaded that their people have the right to resist them, and for the people, on the other hand, to be persuaded to obey them passively. I am, however, quite of the opinion of Grotius, that one ought to obey as a rule, the evil of revolution being greater beyond comparison than the evils causing it. Yet I recognize that a prince can go to such excess, and place the well-being of the state in such danger, that the obligation to endure ceases. This is most rare, however, and the theologian who authorizes violence under this pretext should take care against excess; excess being infinitely more dangerous than deficiency.", "title": "Lawyer and moralist" }, { "paragraph_id": 100, "text": "In 1677, Leibniz called for a European confederation, governed by a council or senate, whose members would represent entire nations and would be free to vote their consciences; this is sometimes considered an anticipation of the European Union. He believed that Europe would adopt a uniform religion. He reiterated these proposals in 1715.", "title": "Lawyer and moralist" }, { "paragraph_id": 101, "text": "But at the same time, he arrived to propose an interreligious and multicultural project to create a universal system of justice, which required from him a broad interdisciplinary perspective. In order to propose it, he combined linguistics (especially sinology), moral and legal philosophy, management, economics, and politics.", "title": "Lawyer and moralist" }, { "paragraph_id": 102, "text": "Leibniz trained as a legal academic, but under the tutelage of Cartesian-sympathiser Erhard Weigel we already see an attempt to solve legal problems by rationalist mathematical methods (Weigel's influence being most explicit in the Specimen Quaestionum Philosophicarum ex Jure collectarum (An Essay of Collected Philosophical Problems of Right)). For example, the Inaugural Disputation on Perplexing Cases uses early combinatorics to solve some legal disputes, while the 1666 Dissertation on the Combinatorial Art includes simple legal problems by way of illustration.", "title": "Lawyer and moralist" }, { "paragraph_id": 103, "text": "The use of combinatorial methods to solve legal and moral problems seems, via Athanasius Kircher and Daniel Schwenter to be of Llullist inspiration: Ramón Llull attempted to solve ecumenical disputes through recourse to a combinatorial mode of reasoning he regarded as universal (a mathesis universalis).", "title": "Lawyer and moralist" }, { "paragraph_id": 104, "text": "In the late 1660s the enlightened Prince-Bishop of Mainz Johann Philipp von Schönborn announced a review of the legal system and made available a position to support his current law commissioner. Leibniz left Franconia and made for Mainz before even winning the role. On reaching Frankfurt am Main Leibniz penned The New Method of Teaching and Learning the Law, by way of application. The text proposed a reform of legal education and is characteristically syncretic, integrating aspects of Thomism, Hobbesianism, Cartesianism and traditional jurisprudence. Leibniz's argument that the function of legal teaching was not to impress rules as one might train a dog, but to aid the student in discovering their own public reason, evidently impressed von Schönborn as he secured the job.", "title": "Lawyer and moralist" }, { "paragraph_id": 105, "text": "Leibniz's next major attempt to find a universal rational core to law and so found a legal \"science of right\", came when Leibniz worked in Mainz from 1667–72. Starting initially from Hobbes' mechanistic doctrine of power, Leibniz reverted to logico-combinatorial methods in an attempt to define justice. As Leibniz's so-called Elementa Juris Naturalis advanced, he built in modal notions of right (possibility) and obligation (necessity) in which we see perhaps the earliest elaboration of his possible worlds doctrine within a deontic frame. While ultimately the Elementa remained unpublished, Leibniz continued to work on his drafts and promote their ideas to correspondents up until his death.", "title": "Lawyer and moralist" }, { "paragraph_id": 106, "text": "Leibniz devoted considerable intellectual and diplomatic effort to what would now be called an ecumenical endeavor, seeking to reconcile the Roman Catholic and Lutheran churches. In this respect, he followed the example of his early patrons, Baron von Boyneburg and the Duke John Frederick—both cradle Lutherans who converted to Catholicism as adults—who did what they could to encourage the reunion of the two faiths, and who warmly welcomed such endeavors by others. (The House of Brunswick remained Lutheran, because the Duke's children did not follow their father.) These efforts included corresponding with French bishop Jacques-Bénigne Bossuet, and involved Leibniz in some theological controversy. He evidently thought that the thoroughgoing application of reason would suffice to heal the breach caused by the Reformation.", "title": "Lawyer and moralist" }, { "paragraph_id": 107, "text": "Leibniz the philologist was an avid student of languages, eagerly latching on to any information about vocabulary and grammar that came his way. In 1710, he applied ideas of gradualism and uniformitarianism to linguistics in a short essay. He refuted the belief, widely held by Christian scholars of the time, that Hebrew was the primeval language of the human race. At the same time, he rejected the idea of unrelated language groups and considered them all to have a common source. He also refuted the argument, advanced by Swedish scholars in his day, that a form of proto-Swedish was the ancestor of the Germanic languages. He puzzled over the origins of the Slavic languages and was fascinated by classical Chinese. Leibniz was also an expert in the Sanskrit language.", "title": "Philologist" }, { "paragraph_id": 108, "text": "He published the princeps editio (first modern edition) of the late medieval Chronicon Holtzatiae, a Latin chronicle of the County of Holstein.", "title": "Philologist" }, { "paragraph_id": 109, "text": "Leibniz was perhaps the first major European intellectual to take a close interest in Chinese civilization, which he knew by corresponding with, and reading other works by, European Christian missionaries posted in China. He apparently read Confucius Sinarum Philosophus in the first year of its publication. He came to the conclusion that Europeans could learn much from the Confucian ethical tradition. He mulled over the possibility that the Chinese characters were an unwitting form of his universal characteristic. He noted how the I Ching hexagrams correspond to the binary numbers from 000000 to 111111, and concluded that this mapping was evidence of major Chinese accomplishments in the sort of philosophical mathematics he admired. Leibniz communicated his ideas of the binary system representing Christianity to the Emperor of China, hoping it would convert him. Leibniz was one of the western philosophers of the time who attempted to accommodate Confucian ideas to prevailing European beliefs.", "title": "Sinophile" }, { "paragraph_id": 110, "text": "Leibniz's attraction to Chinese philosophy originates from his perception that Chinese philosophy was similar to his own. The historian E.R. Hughes suggests that Leibniz's ideas of \"simple substance\" and \"pre-established harmony\" were directly influenced by Confucianism, pointing to the fact that they were conceived during the period when he was reading Confucius Sinarum Philosophus.", "title": "Sinophile" }, { "paragraph_id": 111, "text": "While making his grand tour of European archives to research the Brunswick family history that he never completed, Leibniz stopped in Vienna between May 1688 and February 1689, where he did much legal and diplomatic work for the Brunswicks. He visited mines, talked with mine engineers, and tried to negotiate export contracts for lead from the ducal mines in the Harz mountains. His proposal that the streets of Vienna be lit with lamps burning rapeseed oil was implemented. During a formal audience with the Austrian Emperor and in subsequent memoranda, he advocated reorganizing the Austrian economy, reforming the coinage of much of central Europe, negotiating a Concordat between the Habsburgs and the Vatican, and creating an imperial research library, official archive, and public insurance fund. He wrote and published an important paper on mechanics.", "title": "Polymath" }, { "paragraph_id": 112, "text": "When Leibniz died, his reputation was in decline. He was remembered for only one book, the Théodicée, whose supposed central argument Voltaire lampooned in his popular book Candide, which concludes with the character Candide saying, \"Non liquet\" (it is not clear), a term that was applied during the Roman Republic to a legal verdict of \"not proven\". Voltaire's depiction of Leibniz's ideas was so influential that many believed it to be an accurate description. Thus Voltaire and his Candide bear some of the blame for the lingering failure to appreciate and understand Leibniz's ideas. Leibniz had an ardent disciple, Christian Wolff, whose dogmatic and facile outlook did Leibniz's reputation much harm. He also influenced David Hume, who read his Théodicée and used some of his ideas. In any event, philosophical fashion was moving away from the rationalism and system building of the 17th century, of which Leibniz had been such an ardent proponent. His work on law, diplomacy, and history was seen as of ephemeral interest. The vastness and richness of his correspondence went unrecognized.", "title": "Posthumous reputation" }, { "paragraph_id": 113, "text": "Leibniz's reputation began to recover with the 1765 publication of the Nouveaux Essais. In 1768, Louis Dutens edited the first multi-volume edition of Leibniz's writings, followed in the 19th century by a number of editions, including those edited by Erdmann, Foucher de Careil, Gerhardt, Gerland, Klopp, and Mollat. Publication of Leibniz's correspondence with notables such as Antoine Arnauld, Samuel Clarke, Sophia of Hanover, and her daughter Sophia Charlotte of Hanover, began.", "title": "Posthumous reputation" }, { "paragraph_id": 114, "text": "In 1900, Bertrand Russell published a critical study of Leibniz's metaphysics. Shortly thereafter, Louis Couturat published an important study of Leibniz, and edited a volume of Leibniz's heretofore unpublished writings, mainly on logic. They made Leibniz somewhat respectable among 20th-century analytical and linguistic philosophers in the English-speaking world (Leibniz had already been of great influence to many Germans such as Bernhard Riemann). For example, Leibniz's phrase salva veritate, meaning interchangeability without loss of or compromising the truth, recurs in Willard Quine's writings. Nevertheless, the secondary literature on Leibniz did not really blossom until after World War II. This is especially true of English speaking countries; in Gregory Brown's bibliography fewer than 30 of the English language entries were published before 1946. American Leibniz studies owe much to Leroy Loemker (1904–1985) through his translations and his interpretive essays in LeClerc (1973).", "title": "Posthumous reputation" }, { "paragraph_id": 115, "text": "Nicholas Jolley has surmised that Leibniz's reputation as a philosopher is now perhaps higher than at any time since he was alive. Analytic and contemporary philosophy continue to invoke his notions of identity, individuation, and possible worlds. Work in the history of 17th- and 18th-century ideas has revealed more clearly the 17th-century \"Intellectual Revolution\" that preceded the better-known Industrial and commercial revolutions of the 18th and 19th centuries.", "title": "Posthumous reputation" }, { "paragraph_id": 116, "text": "In Germany, various important institutions were named after Leibniz. In Hanover in particular, he is the namesake for some of the most important institutions in the town:", "title": "Posthumous reputation" }, { "paragraph_id": 117, "text": "outside of Hanover:", "title": "Posthumous reputation" }, { "paragraph_id": 118, "text": "Awards:", "title": "Posthumous reputation" }, { "paragraph_id": 119, "text": "In 1985, the German government created the Leibniz Prize, offering an annual award of 1.55 million euros for experimental results and 770,000 euros for theoretical ones. It was the world's largest prize for scientific achievement prior to the Fundamental Physics Prize.", "title": "Posthumous reputation" }, { "paragraph_id": 120, "text": "The collection of manuscript papers of Leibniz at the Gottfried Wilhelm Leibniz Bibliothek – Niedersächische Landesbibliothek was inscribed on UNESCO's Memory of the World Register in 2007.", "title": "Posthumous reputation" }, { "paragraph_id": 121, "text": "Leibniz still receives popular attention. The Google Doodle for 1 July 2018 celebrated Leibniz's 372nd birthday. Using a quill, his hand is shown writing \"Google\" in binary ASCII code.", "title": "Posthumous reputation" }, { "paragraph_id": 122, "text": "One of the earliest popular but indirect expositions of Leibniz was Voltaire's satire Candide, published in 1759. Leibniz was lampooned as Professor Pangloss, described as \"the greatest philosopher of the Holy Roman Empire\".", "title": "Posthumous reputation" }, { "paragraph_id": 123, "text": "Leibniz also appears as one of the main historical figures in Neal Stephenson's series of novels The Baroque Cycle. Stephenson credits readings and discussions concerning Leibniz for inspiring him to write the series.", "title": "Posthumous reputation" }, { "paragraph_id": 124, "text": "Leibniz also stars in Adam Ehrlich Sachs's novel The Organs of Sense.", "title": "Posthumous reputation" }, { "paragraph_id": 125, "text": "The German biscuit Choco Leibniz is named after Leibniz, a famous resident of Hanover where the manufacturer Bahlsen is based.", "title": "Posthumous reputation" }, { "paragraph_id": 126, "text": "Leibniz mainly wrote in three languages: scholastic Latin, French and German. During his lifetime, he published many pamphlets and scholarly articles, but only two \"philosophical\" books, the Combinatorial Art and the Théodicée. (He published numerous pamphlets, often anonymous, on behalf of the House of Brunswick-Lüneburg, most notably the \"De jure suprematum\" a major consideration of the nature of sovereignty.) One substantial book appeared posthumously, his Nouveaux essais sur l'entendement humain, which Leibniz had withheld from publication after the death of John Locke. Only in 1895, when Bodemann completed his catalogue of Leibniz's manuscripts and correspondence, did the enormous extent of Leibniz's Nachlass become clear: about 15,000 letters to more than 1000 recipients plus more than 40,000 other items. Moreover, quite a few of these letters are of essay length. Much of his vast correspondence, especially the letters dated after 1700, remains unpublished, and much of what is published has appeared only in recent decades. The more than 67,000 records of the Leibniz Edition's Catalogue cover almost all of his known writings and the letters from him and to him. The amount, variety, and disorder of Leibniz's writings are a predictable result of a situation he described in a letter as follows:", "title": "Writings and publication" }, { "paragraph_id": 127, "text": "I cannot tell you how extraordinarily distracted and spread out I am. I am trying to find various things in the archives; I look at old papers and hunt up unpublished documents. From these I hope to shed some light on the history of the [House of] Brunswick. I receive and answer a huge number of letters. At the same time, I have so many mathematical results, philosophical thoughts, and other literary innovations that should not be allowed to vanish that I often do not know where to begin.", "title": "Writings and publication" }, { "paragraph_id": 128, "text": "The extant parts of the critical edition of Leibniz's writings are organized as follows:", "title": "Writings and publication" }, { "paragraph_id": 129, "text": "The systematic cataloguing of all of Leibniz's Nachlass began in 1901. It was hampered by two world wars and then by decades of German division into two states with the Cold War's \"iron curtain\" in between, separating scholars, and also scattering portions of his literary estates. The ambitious project has had to deal with writings in seven languages, contained in some 200,000 written and printed pages. In 1985 it was reorganized and included in a joint program of German federal and state (Länder) academies. Since then the branches in Potsdam, Münster, Hanover and Berlin have jointly published 57 volumes of the critical edition, with an average of 870 pages, and prepared index and concordance works.", "title": "Writings and publication" }, { "paragraph_id": 130, "text": "The year given is usually that in which the work was completed, not of its eventual publication.", "title": "Writings and publication" }, { "paragraph_id": 131, "text": "Six important collections of English translations are Wiener (1951), Parkinson (1966), Loemker (1969), Ariew and Garber (1989), Woolhouse and Francks (1998), and Strickland (2006). The ongoing critical edition of all of Leibniz's writings is Sämtliche Schriften und Briefe.", "title": "Writings and publication" }, { "paragraph_id": 132, "text": "An updated bibliography of more than 25.000 titles is available at Leibniz Bibliographie.", "title": "References" } ]
Gottfried Wilhelm Leibniz was a German polymath active as a mathematician, philosopher, scientist and diplomat. Leibniz has been called the "last universal genius" due to his knowledge and skills in different fields and because such people became less common during the Industrial Revolution and spread of specialized labor after his lifetime. He is a prominent figure in both the history of philosophy and the history of mathematics. He wrote works on philosophy, theology, ethics, politics, law, history, philology, games, music, and other studies. Leibniz also made major contributions to physics and technology, and anticipated notions that surfaced much later in probability theory, biology, medicine, geology, psychology, linguistics and computer science. In addition, he contributed to the field of library science by devising a cataloguing system whilst working at Wolfenbüttel library in Germany that would have served as a guide for many of Europe's largest libraries. Leibniz's contributions to a wide range of subjects were scattered in various learned journals, in tens of thousands of letters and in unpublished manuscripts. He wrote in several languages, primarily in Latin, French and German. As a philosopher, he was a leading representative of 17th-century rationalism and idealism. As a mathematician, his major achievement was the development of the main ideas of differential and integral calculus, independently of Isaac Newton's contemporaneous developments. Mathematicians have consistently favored Leibniz's notation as the conventional and more exact expression of calculus. In the 20th century, Leibniz's notions of the law of continuity and transcendental law of homogeneity found a consistent mathematical formulation by means of non-standard analysis. He was also a pioneer in the field of mechanical calculators. While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, later used in the arithmometer, the first mass-produced mechanical calculator. In philosophy and theology, Leibniz is most noted for his optimism, i.e. his conclusion that our world is, in a qualified sense, the best possible world that God could have created, a view sometimes lampooned by other thinkers, such as Voltaire in his satirical novella Candide. Leibniz, along with René Descartes and Baruch Spinoza, was one of the three influential early modern rationalists. His philosophy also assimilates elements of the scholastic tradition, notably the assumption that some substantive knowledge of reality can be achieved by reasoning from first principles or prior definitions. The work of Leibniz anticipated modern logic and still influences contemporary analytic philosophy, such as its adopted use of the term "possible world" to define modal notions.
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2023-12-22T17:44:03Z
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https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz
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Gamma World
Gamma World is a post-apocalyptic science fantasy role-playing game in which player characters explore Earth centuries after the collapse of civilzation, searching for artifacts from the time before "The Great Upheaval". The game was originally designed by James M. Ward and Gary Jaquet, and first published by TSR in 1978. It borrows heavily from Ward's earlier role-playing game, Metamorphosis Alpha. Gamma World takes place in the mid-25th century, more than a century after a second nuclear war had destroyed human civilization. The war that destroyed civilization in Gamma World is only vaguely described in most editions of the game, and what details are provided change from version to version: Later versions altered the reason for the collapse. All editions, however, agree that the cataclysm destroyed all government and society beyond a village scale, plunging the world into a Dark Age. In many editions of the game, technology is at best quasi-medieval (in the first edition, the crossbow is described as "the ultimate weapon" for most Gamma World societies). Some, such as the 2003 and, to a lesser degree the 2010 edition, feature advanced technology that is well known and often easily available. In contrast, super-science artifacts in earlier editions were risky to use due to the average Gamma World character not knowing how to properly operate such devices, or possibly even what the device is at all. The post-apocalyptic inhabitants of Earth now refer to their planet as "Gamma World" (or "Gamma Terra" in later editions). Gamma World is a chaotic, dangerous environment that little resembles pre-apocalyptic Earth. The weapons unleashed during the final war were strong enough to alter coastlines, level cities, and leave large areas of land lethally radioactive. These future weapons bathed the surviving life of Earth in unspecified forms of radiation and biochemical agents, producing widespread, permanent mutations among humans, animals, and plants. As a result, fantastic mutations such as extra limbs, super strength, and psychic powers are relatively common. (Random tables of such improbable mutations are a hallmark of every edition of Gamma World.) Many animals and plants are sentient, semi-civilized species competing with surviving humans. Both humans and non-humans have lost most knowledge of the pre-war humans, whom Gamma World's inhabitants refer to as "the Ancients". The only group with significant knowledge of the Ancients are isolated robots and other artificial intelligences that survived the war—though these machines tend to be damaged, in ill repair, or hostile to organic beings. Gamma World player characters include unmutated humans (referred to as "Pure Strain Humans" in most editions), mutated humans, sentient animals or plants, and androids. Characters explore Ancient ruins and strange post-apocalyptic societies to gain knowledge of the Ancients and social status for themselves. Common adventure themes involve protecting fragile post-apocalypse societies, retrieving Ancient "artifacts" (science fiction gadgetry such as power armor, laser pistols, and anti-grav sleds), or mere survival against the multifarious dangers of the future (such as gun-toting mutant rabbits, rampaging ancient death machines, or other Gamma Worlders bent on mayhem). A recurrent source of conflict on Gamma World is the rivalry among the "Cryptic Alliances", semi-secret societies whose ideological agendas—usually verging on monomania—often bring them into conflict with the rest of the Gamma World. For example, the Pure Strain Human "Knights of Genetic Purity" seek to exterminate all mutants, while the all-mutant "Iron Society" wants to eliminate unmutated humans. Other rivalries involve attitudes towards Ancient technology, with some Alliances (such as "The Restorationists") seeking to rebuild Ancient society, while others (such as "The Seekers") want to destroy remaining artifacts. Throughout the game's many editions, Gamma World has almost always remained strongly compatible with the then-current edition of Dungeons & Dragons (D&D). Attribute generation is much the same for instance with a range of 3 to 18, randomly generated by rolling three six-sided dice. The attributes themselves are the same, but with occasional name changes such as Physical Strength instead of Strength and Mental Strength instead of Wisdom. This allows Gamma World and D&D characters to potentially cross over genres. Character generation is mostly random, and features one of the game's most distinctive mechanics, the mutation tables. Players who choose to play mutants roll dice to randomly determine their characters' mutations. All versions of Gamma World eschew a realistic portrayal of genetic mutation to one degree or another, instead giving characters fantastic abilities like psychic powers, laser beams, force fields, life draining and others. Other mutations are extensions or extremes of naturally existing features transposed from different species, such as electrical generation, infravision, quills, extra limbs, dual brains, carapaces, gills, etc. These were offset with defects that also ranged from the fantastical—such as skin that dissolves in water, or a scent that attracts monsters—to the mundane, such as seizures, madness and phobias. Characters in most versions of Gamma World earn experience points during their adventures, which cause the character's Rank (in some editions, Level) to increase. Unlike D&D, however, the first two editions of Gamma World do not use a concept of true level or character class, and increases in Rank do not affect the character's skills or combat abilities. In fact, in the first three editions of the game, character rank is primarily a measure of the character's social prestige. The game mechanics used for resolving character actions, on the other hand, greatly varied between Gamma World editions. The first two editions, like the early editions of D&D, depend heavily on matrix-based mechanics, where two factors (one representing the actor or attacker, and one representing the opponent) are cross-referenced on a chart. For some actions, such as attacks, the number located on the matrix represents a number the acting player must roll. For other actions (such as determining the result of radiation exposure), the matrix result indicates a non-negotiable result. Gamma World's first two editions had a variety of specialized matrices for different situations (again, closely resembling D&D). The third edition rules replace specialized matrices with the Action Control Table (ACT), a single, color-coded chart that allowed players to determine whether a character action succeeded, and the degree of success, with a single roll. (The ACT concept is drawn from the Marvel Super Heroes game published by TSR shortly before development of Gamma World's third edition.) The ACT requires the referee to cross-reference the difficulty of a character action with the ability score used to complete that action, determining which column of the ACT is used for that action. The character's player then rolls percentile dice; the result is compared to appropriate column, determining a degree of success or failure and eliminating the need for second result roll (e.g. the damage roll that many games require after a successful combat action). The fourth edition was directly compatible with 2nd Edition AD&D with some minor differences in mechanics. The fifth and sixth editions though would relegate Gamma World to that of a Campaign Setting and require the core books to play. 5th uses the Alternity system which is mostly represented in the book but required the core rules in order to resolve some factors. 6th Edition though was fully incomplete on its own and required the d20 Modern rulebook in order to play the game. The seventh version uses a streamlined version of D&D 4th edition mechanics. Character generation choice though was nearly fully removed. Instead of choosing a character class, a player had to roll a twenty-sided die two times and consult an accompanying character origin table. For example, a player might obtain the result "Radioactive Yeti" and gain the powers associated with the "Radioactive" and "Yeti" origins. Attributes, mutations, and skills were also randomly assigned. Two decks of cards comprising the core of a Collectible Card Game are included with the game. One deck represented random Alpha Mutations, which could be drawn to gain temporary powers, and the other contained various Omega Tech, powerful technological devices that could possibly backfire on those that used them. Some 4th edition rules enhancements for the setting include new damage types such as "Radiation", Gamma World-specific skills, and increased lethality. Despite these differences, it is possible to use characters and monsters from a D&D game in Gamma World and vice versa. The original Gamma World boxed set (containing a 56-page rulebook, a map of a devastated North America, and dice) was released in 1978. TSR went on to publish three accessories for the 1st edition of the game: Grenadier Miniatures also supported the game, with a line of licensed miniatures. At least one other TSR product was announced -- Metamorphosis Alpha to Omega, an adaptation of Metamorphosis Alpha's campaign setting to Gamma World's rules (Anon 1981). Work on the adaptation was halted when a 2nd edition of Gamma World was announced. This was later released as Metamorphosis Alpha to Omega using the Amazing Engine Rules. The second edition Gamma World boxed set (with rules designed by Ward, Jaquet, and David James Ritchie) was released in 1983. Two modules and two accessories were released for this version: TSR also produced four packs of Gamma World miniatures. TSR started production on a third adventure module, which was to be assigned the identification code GW5 and had the working title Rapture of the Deep. This module was not published. However, a 'ghost' Second Edition GW5 Rapture of the Deep module was produced in 2007. The 3rd edition of Gamma World was another boxed set, credited to James M. Ward. It introduced the Action Control Table, a color-coded table used to resolve nearly all actions in the game. (Color-coded tables were something of a trend at TSR in the mid-1980s. After 1984's Marvel Super Heroes proved the viability of the concept, TSR revised Gamma World, Star Frontiers, and Top Secret to use similar tables.) Unfortunately for TSR, this version of the rules became notorious for the number of editorial mistakes, including cross-references to rules that didn't appear in the boxed set. The errors were serious enough that TSR published a Gamma World Rules Supplement containing the "missing" rules. The Rules Supplement was sent to gamers who requested it by mail, and included in reprintings of the boxed set. The five modules TSR published for Gamma World's 3rd edition introduced the setting's first multi-module metaplot, which involved rebuilding an ancient 'sky chariot': TSR dropped the 3rd edition of Gamma World from its product line before the multi-module storyline could be completed. In 2003 an unofficial conclusion to the series was published under the title GW11 Omega Project. Despite its editorial issues, the 3rd edition rules were well-received enough to win the 1986/1987 Gamer's Choice Award for "Best Science-Fiction Roleplaying Game". The 4th edition of Gamma World was a 192-page softcover book, written by Bruce Nesmith and James M. Ward, published in May 1992 by TSR. This version of the game abandoned the 3rd edition's Action Control Table for mechanics resembling 2nd Edition Advanced Dungeons & Dragons. TSR published five accessories for the 4th edition: TSR's Gamma World development team announced at Gen Con 1993 that no further products would be released for the 4th edition. They also announced that TSR had restarted development of Metamorphosis Alpha to Omega, but that the manuscript would be completed using the Amazing Engine rules. The 5th version of Gamma World was a supplement for the science-fiction game Alternity. (In a nod to Gamma World's reputation for being repeatedly revised, the book's back cover states "That's right, it's the return of the Gamma World".) The Gamma World Campaign Setting (ISBN 0-7869-1629-X) was a 192-page softcover book written by Andy Collins and Jeff Grubb, published in 2000 by Wizards of the Coast (WOTC), only a month after WOTC announced its cancellation of the Alternity line. This version of Gamma World is unique as the only one not to have accessories or supplements. In September 2002, Omega World, a d20 System mini-game based on Gamma World and written by Jonathan Tweet, was published in Dungeon 94/Polyhedron 153. Tweet does not plan any expansions for the game, although it received a warm reception from Gamma World fans and players new to the concept alike. In November 2002, Sword & Sorcery Studios (SSS) announced that it had licensed the Gamma World setting from WOTC in order to produce a sixth version of the game. SSS's version of the game, which reached the market in 2003, used the d20 Modern system, and mimicked D&D's "three core book" model with three hardcover manuals: Sword & Sorcery Studios also published three paperback supplements for the d20 version of Gamma World: This new version of the game presented a more sober and serious approach to the concept of a post-nuclear world, at odds with the more light-hearted and adventurous approach taken by previous editions; it was also the first edition of the game to include fantastical nanotechnology on a large scale. In August 2005, White Wolf announced that it was reverting the rights to publish Gamma World products back to Wizards of the Coast, putting the game out of print again. Several critics and fans considered Tweet's Omega World to be a superior d20 System treatment of the Gamma World concept. At the Dungeons & Dragons Experience fan convention in early 2010, Wizards of the Coast announced a new version titled D&D Gamma World, eventually released in October of that year. The game is compatible with the D&D 4th Edition rules and the System Reference Document, but is not considered a separate D&D setting. The basic box included 80 non-random cards. In addition, random "boosters" of "Alpha Mutation" and "Omega Tech" cards for players are sold separately in packs of eight. This edition of Gamma World includes the following three boxed sets (one core set and two expansion kits): Additional content was released for the 7th Edition of Gamma World at Game Day 2010 and at the 2010 Penny Arcade Expo, Trouble in Freesboro and Pax Extraterrestria respectively. In addition, a Christmas themed adventure and vehicular combat rules were released online. Additionally, two novels were published in the setting. Sooner Dead by Mel Odom was published February 1, 2011, and Red Sails in the Fallout by Paul Kidd, published July 5, 2011. In Issue 41 of Moves, Steve List reviewed the first edition and commented, "Gamma World is not a game for those who take their science fiction, science, or technology seriously, but it is a good set of rules for role-playing, provided an energetic referee can be found to run the show." Don Turnbull reviewed the first edition of Gamma World for White Dwarf #10, giving it an overall rating of 9 out of 10, and stated that "Gamma World is good quality - let there be no mistake. This has not been thrown together in haste by earnest amateurs over glasses of cheap booze. It is a thoroughly professional job which deserves a place on the shelf (and the playing table) of anyone remotely interested in the science fiction game-setting." In the 1979 book The Playboy Winner's Guide to Board Games, John Jackson reviewed the first edition, and noted that "Gama World could draw on a hundred science-fiction novels for material. It seems to be better organized than its cousin [Metamorphosis Alpha], and the campaign map of an altered America is almost worth the cost of the game itself." Ronald Pehr reviewed the first edition of Gamma World in The Space Gamer No. 32 and commented "If you liked its progenitors, Gamma World is an interesting variant. Beginning players should find it easy to learn, and referees are challenged to create a playable, balanced world. It's somewhat expensive and the sudden-death power of futuristic weaponry and the lack of character 'levels' may put you off, but if the basic premise is appealing you'll probably enjoy Gamma World." In the July 1980 issue of Fantastic Science Fiction, Greg Costikyan called the rules of the first edition "reasonably well written, if poorly organized; they are sufficient to base a campaign upon." However, Costikyan was appalled by the lack of hard science, calling the game "idiotic pseudo-science". Costikyan concluded, "I'm surprised that even TSR would attempt to foist junk like Gamma World off on an unsuspecting public." In the 1980 book The Complete Book of Wargames, game designer Jon Freeman reviewed the first edition and commented, "This is in every sense an improved version of Metamorphosis Alpha. Rules have been tightened and elaborated, and the organization is clearly superior." Freeman concluded, "While it's not quite as open-ended in scope as Dungeons & Dragons, it has plenty of potential. It's hardly flawless, but Gamma World is one of the best things TSR has produced." In Issue 11 of the French games magazine Jeu et Stratégie, Michel Brassinne found the game mechanics only ordinary, but noted "the mutation table is a gem worth its weight in gold, it is indeed sometimes hilarious." Brassinne pointed out that because of similarities in rules, this game could theoretically be combined with other TSR games such as AD&D, but he warned, "be careful, because this is not a walk of pleasure — I experienced it with characters from D&D and I can assure you that I will not do it again soon." Brassinne concluded, "Given dice, cards, modules, pencils and time, the result will be long, exciting sleepless nights." Chris Baylis reviewed the second edition for Imagine magazine, and stated that "For a post nuclear holocaust role-playing game, Gamma World game has just about all the right ingredients, in the correct proportions. It is a very good introduction into the fantasy world of role-playing, and should seriously rival all other RPGs." In the August 1984 issue of Asimov's Science Fiction, Dana Lombardy called the redesign of the 2nd edition "so extensive it should be considered a new game ... Gamma World offers one of the more bizarre and hostile environments to role-play in." Lombardy did note that "the technology is disjointed. You can have a dog-man with a spear fighting alongside a robot with a laser, allied against humanoids with pistols and swords." Lombardy concluded, "If you prefer more straightforward science fiction with known and approximately equal abilities and weapons, then Gamma World may not be for you. It's a topsy-turvy world, where the average pure-strain human is hard-pressed to exist among plants and animals mutated by humanity's wars. But if you like a challenge, and want to role-play something really different — Gamma World could be it." In Issue 37 of the French games magazine Casus Belli, Denis Beck found many improvements in the third edition, writing, "Even if Gamma World sometimes reminds us of a transposition of AD&D into the future, this new version — where we do not find the many problems that handicapped the previous editions — really looks good alongside other post-apocalypse games." Beck concluded, "It may not be the game of the year, but fans of The Great Upheaval will find plenty to enjoy here." In his 1990 book The Complete Guide to Role-Playing Games, game critic Rick Swan reviewed the 3rd edition and commented "Though Gamma World may sound like a loony-bin version of Twilight: 2000, it makes for some exciting adventures as the PCs explore a high-tech wonderland of mysterious landmarks and artifacts". Swan concluded by giving the game a rating of 3 out of 4, saying, "It's a bang-up job [...] that is, if you don't take your nuclear holocausts too seriously." Scott Taylor for Black Gate in 2013 rated Gamma World as #8 in the top ten role-playing games of all time, saying "There seems to be an innate fascination with the end of the world, be it from a global thermal nuclear war, zombie outbreak, alien invasion, or super-bug and Gamma World finds a way to bring the fantastic to this type of setting. It has survived seven editions and three companies, but still, Gamma World remains a fun and functional game in the current RPG marketplace." In 2011, a video game adaptation was announced at E3 called Gamma World: Alpha Mutation for the Xbox 360, PlayStation 3 and PC. It was to be developed by Bedlam Games and published by Atari. Unfortunately, due to unknown reasons, it was cancelled. The Swedish role playing game Mutant, released in 1984 by Äventyrsspel, was first pitched to its future writer as "Gamma World, set in Sweden". The post-apocalyptic premise of the 1997 computer game Fallout was inspired by Gamma World. Game creator Tim Cain said it was not the most balanced RPG but it had a good spirit to it. Gamma World was cited as a source of inspiration for the procedurally generated word-building in Caves of Qud.
[ { "paragraph_id": 0, "text": "Gamma World is a post-apocalyptic science fantasy role-playing game in which player characters explore Earth centuries after the collapse of civilzation, searching for artifacts from the time before \"The Great Upheaval\". The game was originally designed by James M. Ward and Gary Jaquet, and first published by TSR in 1978. It borrows heavily from Ward's earlier role-playing game, Metamorphosis Alpha.", "title": "" }, { "paragraph_id": 1, "text": "Gamma World takes place in the mid-25th century, more than a century after a second nuclear war had destroyed human civilization. The war that destroyed civilization in Gamma World is only vaguely described in most editions of the game, and what details are provided change from version to version:", "title": "Setting" }, { "paragraph_id": 2, "text": "Later versions altered the reason for the collapse.", "title": "Setting" }, { "paragraph_id": 3, "text": "All editions, however, agree that the cataclysm destroyed all government and society beyond a village scale, plunging the world into a Dark Age. In many editions of the game, technology is at best quasi-medieval (in the first edition, the crossbow is described as \"the ultimate weapon\" for most Gamma World societies). Some, such as the 2003 and, to a lesser degree the 2010 edition, feature advanced technology that is well known and often easily available. In contrast, super-science artifacts in earlier editions were risky to use due to the average Gamma World character not knowing how to properly operate such devices, or possibly even what the device is at all. The post-apocalyptic inhabitants of Earth now refer to their planet as \"Gamma World\" (or \"Gamma Terra\" in later editions).", "title": "Setting" }, { "paragraph_id": 4, "text": "Gamma World is a chaotic, dangerous environment that little resembles pre-apocalyptic Earth. The weapons unleashed during the final war were strong enough to alter coastlines, level cities, and leave large areas of land lethally radioactive. These future weapons bathed the surviving life of Earth in unspecified forms of radiation and biochemical agents, producing widespread, permanent mutations among humans, animals, and plants. As a result, fantastic mutations such as extra limbs, super strength, and psychic powers are relatively common. (Random tables of such improbable mutations are a hallmark of every edition of Gamma World.) Many animals and plants are sentient, semi-civilized species competing with surviving humans. Both humans and non-humans have lost most knowledge of the pre-war humans, whom Gamma World's inhabitants refer to as \"the Ancients\". The only group with significant knowledge of the Ancients are isolated robots and other artificial intelligences that survived the war—though these machines tend to be damaged, in ill repair, or hostile to organic beings.", "title": "Setting" }, { "paragraph_id": 5, "text": "Gamma World player characters include unmutated humans (referred to as \"Pure Strain Humans\" in most editions), mutated humans, sentient animals or plants, and androids. Characters explore Ancient ruins and strange post-apocalyptic societies to gain knowledge of the Ancients and social status for themselves. Common adventure themes involve protecting fragile post-apocalypse societies, retrieving Ancient \"artifacts\" (science fiction gadgetry such as power armor, laser pistols, and anti-grav sleds), or mere survival against the multifarious dangers of the future (such as gun-toting mutant rabbits, rampaging ancient death machines, or other Gamma Worlders bent on mayhem).", "title": "Setting" }, { "paragraph_id": 6, "text": "A recurrent source of conflict on Gamma World is the rivalry among the \"Cryptic Alliances\", semi-secret societies whose ideological agendas—usually verging on monomania—often bring them into conflict with the rest of the Gamma World. For example, the Pure Strain Human \"Knights of Genetic Purity\" seek to exterminate all mutants, while the all-mutant \"Iron Society\" wants to eliminate unmutated humans. Other rivalries involve attitudes towards Ancient technology, with some Alliances (such as \"The Restorationists\") seeking to rebuild Ancient society, while others (such as \"The Seekers\") want to destroy remaining artifacts.", "title": "Setting" }, { "paragraph_id": 7, "text": "Throughout the game's many editions, Gamma World has almost always remained strongly compatible with the then-current edition of Dungeons & Dragons (D&D). Attribute generation is much the same for instance with a range of 3 to 18, randomly generated by rolling three six-sided dice. The attributes themselves are the same, but with occasional name changes such as Physical Strength instead of Strength and Mental Strength instead of Wisdom. This allows Gamma World and D&D characters to potentially cross over genres.", "title": "System" }, { "paragraph_id": 8, "text": "Character generation is mostly random, and features one of the game's most distinctive mechanics, the mutation tables. Players who choose to play mutants roll dice to randomly determine their characters' mutations. All versions of Gamma World eschew a realistic portrayal of genetic mutation to one degree or another, instead giving characters fantastic abilities like psychic powers, laser beams, force fields, life draining and others. Other mutations are extensions or extremes of naturally existing features transposed from different species, such as electrical generation, infravision, quills, extra limbs, dual brains, carapaces, gills, etc. These were offset with defects that also ranged from the fantastical—such as skin that dissolves in water, or a scent that attracts monsters—to the mundane, such as seizures, madness and phobias.", "title": "System" }, { "paragraph_id": 9, "text": "Characters in most versions of Gamma World earn experience points during their adventures, which cause the character's Rank (in some editions, Level) to increase. Unlike D&D, however, the first two editions of Gamma World do not use a concept of true level or character class, and increases in Rank do not affect the character's skills or combat abilities. In fact, in the first three editions of the game, character rank is primarily a measure of the character's social prestige.", "title": "System" }, { "paragraph_id": 10, "text": "The game mechanics used for resolving character actions, on the other hand, greatly varied between Gamma World editions. The first two editions, like the early editions of D&D, depend heavily on matrix-based mechanics, where two factors (one representing the actor or attacker, and one representing the opponent) are cross-referenced on a chart. For some actions, such as attacks, the number located on the matrix represents a number the acting player must roll. For other actions (such as determining the result of radiation exposure), the matrix result indicates a non-negotiable result. Gamma World's first two editions had a variety of specialized matrices for different situations (again, closely resembling D&D).", "title": "System" }, { "paragraph_id": 11, "text": "The third edition rules replace specialized matrices with the Action Control Table (ACT), a single, color-coded chart that allowed players to determine whether a character action succeeded, and the degree of success, with a single roll. (The ACT concept is drawn from the Marvel Super Heroes game published by TSR shortly before development of Gamma World's third edition.) The ACT requires the referee to cross-reference the difficulty of a character action with the ability score used to complete that action, determining which column of the ACT is used for that action. The character's player then rolls percentile dice; the result is compared to appropriate column, determining a degree of success or failure and eliminating the need for second result roll (e.g. the damage roll that many games require after a successful combat action).", "title": "System" }, { "paragraph_id": 12, "text": "The fourth edition was directly compatible with 2nd Edition AD&D with some minor differences in mechanics. The fifth and sixth editions though would relegate Gamma World to that of a Campaign Setting and require the core books to play. 5th uses the Alternity system which is mostly represented in the book but required the core rules in order to resolve some factors. 6th Edition though was fully incomplete on its own and required the d20 Modern rulebook in order to play the game.", "title": "System" }, { "paragraph_id": 13, "text": "The seventh version uses a streamlined version of D&D 4th edition mechanics. Character generation choice though was nearly fully removed. Instead of choosing a character class, a player had to roll a twenty-sided die two times and consult an accompanying character origin table. For example, a player might obtain the result \"Radioactive Yeti\" and gain the powers associated with the \"Radioactive\" and \"Yeti\" origins. Attributes, mutations, and skills were also randomly assigned. Two decks of cards comprising the core of a Collectible Card Game are included with the game. One deck represented random Alpha Mutations, which could be drawn to gain temporary powers, and the other contained various Omega Tech, powerful technological devices that could possibly backfire on those that used them. Some 4th edition rules enhancements for the setting include new damage types such as \"Radiation\", Gamma World-specific skills, and increased lethality. Despite these differences, it is possible to use characters and monsters from a D&D game in Gamma World and vice versa.", "title": "System" }, { "paragraph_id": 14, "text": "The original Gamma World boxed set (containing a 56-page rulebook, a map of a devastated North America, and dice) was released in 1978. TSR went on to publish three accessories for the 1st edition of the game:", "title": "History" }, { "paragraph_id": 15, "text": "Grenadier Miniatures also supported the game, with a line of licensed miniatures.", "title": "History" }, { "paragraph_id": 16, "text": "At least one other TSR product was announced -- Metamorphosis Alpha to Omega, an adaptation of Metamorphosis Alpha's campaign setting to Gamma World's rules (Anon 1981). Work on the adaptation was halted when a 2nd edition of Gamma World was announced. This was later released as Metamorphosis Alpha to Omega using the Amazing Engine Rules.", "title": "History" }, { "paragraph_id": 17, "text": "The second edition Gamma World boxed set (with rules designed by Ward, Jaquet, and David James Ritchie) was released in 1983. Two modules and two accessories were released for this version:", "title": "History" }, { "paragraph_id": 18, "text": "TSR also produced four packs of Gamma World miniatures. TSR started production on a third adventure module, which was to be assigned the identification code GW5 and had the working title Rapture of the Deep. This module was not published. However, a 'ghost' Second Edition GW5 Rapture of the Deep module was produced in 2007.", "title": "History" }, { "paragraph_id": 19, "text": "The 3rd edition of Gamma World was another boxed set, credited to James M. Ward. It introduced the Action Control Table, a color-coded table used to resolve nearly all actions in the game. (Color-coded tables were something of a trend at TSR in the mid-1980s. After 1984's Marvel Super Heroes proved the viability of the concept, TSR revised Gamma World, Star Frontiers, and Top Secret to use similar tables.) Unfortunately for TSR, this version of the rules became notorious for the number of editorial mistakes, including cross-references to rules that didn't appear in the boxed set. The errors were serious enough that TSR published a Gamma World Rules Supplement containing the \"missing\" rules. The Rules Supplement was sent to gamers who requested it by mail, and included in reprintings of the boxed set.", "title": "History" }, { "paragraph_id": 20, "text": "The five modules TSR published for Gamma World's 3rd edition introduced the setting's first multi-module metaplot, which involved rebuilding an ancient 'sky chariot':", "title": "History" }, { "paragraph_id": 21, "text": "TSR dropped the 3rd edition of Gamma World from its product line before the multi-module storyline could be completed. In 2003 an unofficial conclusion to the series was published under the title GW11 Omega Project.", "title": "History" }, { "paragraph_id": 22, "text": "Despite its editorial issues, the 3rd edition rules were well-received enough to win the 1986/1987 Gamer's Choice Award for \"Best Science-Fiction Roleplaying Game\".", "title": "History" }, { "paragraph_id": 23, "text": "The 4th edition of Gamma World was a 192-page softcover book, written by Bruce Nesmith and James M. Ward, published in May 1992 by TSR. This version of the game abandoned the 3rd edition's Action Control Table for mechanics resembling 2nd Edition Advanced Dungeons & Dragons. TSR published five accessories for the 4th edition:", "title": "History" }, { "paragraph_id": 24, "text": "TSR's Gamma World development team announced at Gen Con 1993 that no further products would be released for the 4th edition. They also announced that TSR had restarted development of Metamorphosis Alpha to Omega, but that the manuscript would be completed using the Amazing Engine rules.", "title": "History" }, { "paragraph_id": 25, "text": "The 5th version of Gamma World was a supplement for the science-fiction game Alternity. (In a nod to Gamma World's reputation for being repeatedly revised, the book's back cover states \"That's right, it's the return of the Gamma World\".) The Gamma World Campaign Setting (ISBN 0-7869-1629-X) was a 192-page softcover book written by Andy Collins and Jeff Grubb, published in 2000 by Wizards of the Coast (WOTC), only a month after WOTC announced its cancellation of the Alternity line. This version of Gamma World is unique as the only one not to have accessories or supplements.", "title": "History" }, { "paragraph_id": 26, "text": "In September 2002, Omega World, a d20 System mini-game based on Gamma World and written by Jonathan Tweet, was published in Dungeon 94/Polyhedron 153. Tweet does not plan any expansions for the game, although it received a warm reception from Gamma World fans and players new to the concept alike.", "title": "History" }, { "paragraph_id": 27, "text": "In November 2002, Sword & Sorcery Studios (SSS) announced that it had licensed the Gamma World setting from WOTC in order to produce a sixth version of the game. SSS's version of the game, which reached the market in 2003, used the d20 Modern system, and mimicked D&D's \"three core book\" model with three hardcover manuals:", "title": "History" }, { "paragraph_id": 28, "text": "Sword & Sorcery Studios also published three paperback supplements for the d20 version of Gamma World:", "title": "History" }, { "paragraph_id": 29, "text": "This new version of the game presented a more sober and serious approach to the concept of a post-nuclear world, at odds with the more light-hearted and adventurous approach taken by previous editions; it was also the first edition of the game to include fantastical nanotechnology on a large scale. In August 2005, White Wolf announced that it was reverting the rights to publish Gamma World products back to Wizards of the Coast, putting the game out of print again. Several critics and fans considered Tweet's Omega World to be a superior d20 System treatment of the Gamma World concept.", "title": "History" }, { "paragraph_id": 30, "text": "At the Dungeons & Dragons Experience fan convention in early 2010, Wizards of the Coast announced a new version titled D&D Gamma World, eventually released in October of that year. The game is compatible with the D&D 4th Edition rules and the System Reference Document, but is not considered a separate D&D setting.", "title": "History" }, { "paragraph_id": 31, "text": "The basic box included 80 non-random cards. In addition, random \"boosters\" of \"Alpha Mutation\" and \"Omega Tech\" cards for players are sold separately in packs of eight.", "title": "History" }, { "paragraph_id": 32, "text": "This edition of Gamma World includes the following three boxed sets (one core set and two expansion kits):", "title": "History" }, { "paragraph_id": 33, "text": "Additional content was released for the 7th Edition of Gamma World at Game Day 2010 and at the 2010 Penny Arcade Expo, Trouble in Freesboro and Pax Extraterrestria respectively. In addition, a Christmas themed adventure and vehicular combat rules were released online.", "title": "History" }, { "paragraph_id": 34, "text": "Additionally, two novels were published in the setting. Sooner Dead by Mel Odom was published February 1, 2011, and Red Sails in the Fallout by Paul Kidd, published July 5, 2011.", "title": "History" }, { "paragraph_id": 35, "text": "In Issue 41 of Moves, Steve List reviewed the first edition and commented, \"Gamma World is not a game for those who take their science fiction, science, or technology seriously, but it is a good set of rules for role-playing, provided an energetic referee can be found to run the show.\"", "title": "Reception" }, { "paragraph_id": 36, "text": "Don Turnbull reviewed the first edition of Gamma World for White Dwarf #10, giving it an overall rating of 9 out of 10, and stated that \"Gamma World is good quality - let there be no mistake. This has not been thrown together in haste by earnest amateurs over glasses of cheap booze. It is a thoroughly professional job which deserves a place on the shelf (and the playing table) of anyone remotely interested in the science fiction game-setting.\"", "title": "Reception" }, { "paragraph_id": 37, "text": "In the 1979 book The Playboy Winner's Guide to Board Games, John Jackson reviewed the first edition, and noted that \"Gama World could draw on a hundred science-fiction novels for material. It seems to be better organized than its cousin [Metamorphosis Alpha], and the campaign map of an altered America is almost worth the cost of the game itself.\"", "title": "Reception" }, { "paragraph_id": 38, "text": "Ronald Pehr reviewed the first edition of Gamma World in The Space Gamer No. 32 and commented \"If you liked its progenitors, Gamma World is an interesting variant. Beginning players should find it easy to learn, and referees are challenged to create a playable, balanced world. It's somewhat expensive and the sudden-death power of futuristic weaponry and the lack of character 'levels' may put you off, but if the basic premise is appealing you'll probably enjoy Gamma World.\"", "title": "Reception" }, { "paragraph_id": 39, "text": "In the July 1980 issue of Fantastic Science Fiction, Greg Costikyan called the rules of the first edition \"reasonably well written, if poorly organized; they are sufficient to base a campaign upon.\" However, Costikyan was appalled by the lack of hard science, calling the game \"idiotic pseudo-science\". Costikyan concluded, \"I'm surprised that even TSR would attempt to foist junk like Gamma World off on an unsuspecting public.\"", "title": "Reception" }, { "paragraph_id": 40, "text": "In the 1980 book The Complete Book of Wargames, game designer Jon Freeman reviewed the first edition and commented, \"This is in every sense an improved version of Metamorphosis Alpha. Rules have been tightened and elaborated, and the organization is clearly superior.\" Freeman concluded, \"While it's not quite as open-ended in scope as Dungeons & Dragons, it has plenty of potential. It's hardly flawless, but Gamma World is one of the best things TSR has produced.\"", "title": "Reception" }, { "paragraph_id": 41, "text": "In Issue 11 of the French games magazine Jeu et Stratégie, Michel Brassinne found the game mechanics only ordinary, but noted \"the mutation table is a gem worth its weight in gold, it is indeed sometimes hilarious.\" Brassinne pointed out that because of similarities in rules, this game could theoretically be combined with other TSR games such as AD&D, but he warned, \"be careful, because this is not a walk of pleasure — I experienced it with characters from D&D and I can assure you that I will not do it again soon.\" Brassinne concluded, \"Given dice, cards, modules, pencils and time, the result will be long, exciting sleepless nights.\"", "title": "Reception" }, { "paragraph_id": 42, "text": "Chris Baylis reviewed the second edition for Imagine magazine, and stated that \"For a post nuclear holocaust role-playing game, Gamma World game has just about all the right ingredients, in the correct proportions. It is a very good introduction into the fantasy world of role-playing, and should seriously rival all other RPGs.\"", "title": "Reception" }, { "paragraph_id": 43, "text": "In the August 1984 issue of Asimov's Science Fiction, Dana Lombardy called the redesign of the 2nd edition \"so extensive it should be considered a new game ... Gamma World offers one of the more bizarre and hostile environments to role-play in.\" Lombardy did note that \"the technology is disjointed. You can have a dog-man with a spear fighting alongside a robot with a laser, allied against humanoids with pistols and swords.\" Lombardy concluded, \"If you prefer more straightforward science fiction with known and approximately equal abilities and weapons, then Gamma World may not be for you. It's a topsy-turvy world, where the average pure-strain human is hard-pressed to exist among plants and animals mutated by humanity's wars. But if you like a challenge, and want to role-play something really different — Gamma World could be it.\"", "title": "Reception" }, { "paragraph_id": 44, "text": "In Issue 37 of the French games magazine Casus Belli, Denis Beck found many improvements in the third edition, writing, \"Even if Gamma World sometimes reminds us of a transposition of AD&D into the future, this new version — where we do not find the many problems that handicapped the previous editions — really looks good alongside other post-apocalypse games.\" Beck concluded, \"It may not be the game of the year, but fans of The Great Upheaval will find plenty to enjoy here.\"", "title": "Reception" }, { "paragraph_id": 45, "text": "In his 1990 book The Complete Guide to Role-Playing Games, game critic Rick Swan reviewed the 3rd edition and commented \"Though Gamma World may sound like a loony-bin version of Twilight: 2000, it makes for some exciting adventures as the PCs explore a high-tech wonderland of mysterious landmarks and artifacts\". Swan concluded by giving the game a rating of 3 out of 4, saying, \"It's a bang-up job [...] that is, if you don't take your nuclear holocausts too seriously.\"", "title": "Reception" }, { "paragraph_id": 46, "text": "Scott Taylor for Black Gate in 2013 rated Gamma World as #8 in the top ten role-playing games of all time, saying \"There seems to be an innate fascination with the end of the world, be it from a global thermal nuclear war, zombie outbreak, alien invasion, or super-bug and Gamma World finds a way to bring the fantastic to this type of setting. It has survived seven editions and three companies, but still, Gamma World remains a fun and functional game in the current RPG marketplace.\"", "title": "Reception" }, { "paragraph_id": 47, "text": "In 2011, a video game adaptation was announced at E3 called Gamma World: Alpha Mutation for the Xbox 360, PlayStation 3 and PC. It was to be developed by Bedlam Games and published by Atari. Unfortunately, due to unknown reasons, it was cancelled.", "title": "Cancelled Video Game" }, { "paragraph_id": 48, "text": "The Swedish role playing game Mutant, released in 1984 by Äventyrsspel, was first pitched to its future writer as \"Gamma World, set in Sweden\".", "title": "Legacy" }, { "paragraph_id": 49, "text": "The post-apocalyptic premise of the 1997 computer game Fallout was inspired by Gamma World. Game creator Tim Cain said it was not the most balanced RPG but it had a good spirit to it.", "title": "Legacy" }, { "paragraph_id": 50, "text": "Gamma World was cited as a source of inspiration for the procedurally generated word-building in Caves of Qud.", "title": "Legacy" } ]
Gamma World is a post-apocalyptic science fantasy role-playing game in which player characters explore Earth centuries after the collapse of civilzation, searching for artifacts from the time before "The Great Upheaval". The game was originally designed by James M. Ward and Gary Jaquet, and first published by TSR in 1978. It borrows heavily from Ward's earlier role-playing game, Metamorphosis Alpha.
2001-06-03T22:33:35Z
2023-11-20T02:30:16Z
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https://en.wikipedia.org/wiki/Gamma_World
12,284
Grimoire
A grimoire (/ɡrɪmˈwɑːr/ grim-WAHR) (also known as a "book of spells", "magic book", or a "spellbook") is a textbook of magic, typically including instructions on how to create magical objects like talismans and amulets, how to perform magical spells, charms, and divination, and how to summon or invoke supernatural entities such as angels, spirits, deities, and demons. In many cases, the books themselves are believed to be imbued with magical powers, although in many cultures, other sacred texts that are not grimoires (such as the Bible) have been believed to have supernatural properties intrinsically. The only contents found in a grimoire would be information on spells, rituals, the preparation of magical tools, and lists of ingredients and their magical correspondences. In this manner, while all books on magic could be thought of as grimoires, not all magical books should be thought of as grimoires. While the term grimoire is originally European—and many Europeans throughout history, particularly ceremonial magicians and cunning folk, have used grimoires—the historian Owen Davies has noted that similar books can be found all around the world, ranging from Jamaica to Sumatra. He also noted that in this sense, the world's first grimoires were created in Europe and the ancient Near East. The etymology of grimoire is unclear. It is most commonly believed that the term grimoire originated from the Old French word grammaire 'grammar', which had initially been used to refer to all books written in Latin. By the 18th century, the term had gained its now common usage in France and had begun to be used to refer purely to books of magic. Owen Davies presumed this was because "many of them continued to circulate in Latin manuscripts". However, the term grimoire later developed into a figure of speech among the French indicating something that was hard to understand. In the 19th century, with the increasing interest in occultism among the British following the publication of Francis Barrett's The Magus (1801), the term entered English in reference to books of magic. The earliest known written magical incantations come from ancient Mesopotamia (modern Iraq), where they have been found inscribed on cuneiform clay tablets that archaeologists excavated from the city of Uruk and dated to between the 5th and 4th centuries BC. The ancient Egyptians also employed magical incantations, which have been found inscribed on amulets and other items. The Egyptian magical system, known as heka, was greatly altered and expanded after the Macedonians, led by Alexander the Great, invaded Egypt in 332 BC. Under the next three centuries of Hellenistic Egypt, the Coptic writing system evolved, and the Library of Alexandria was opened. This likely had an influence upon books of magic, with the trend on known incantations switching from simple health and protection charms to more specific things, such as financial success and sexual fulfillment. Around this time the legendary figure of Hermes Trismegistus developed as a conflation of the Egyptian god Thoth and the Greek Hermes; this figure was associated with writing and magic and, therefore, of books on magic. The ancient Greeks and Romans believed that books on magic were invented by the Persians. The 1st-century AD writer Pliny the Elder stated that magic had been first discovered by the ancient philosopher Zoroaster around the year 647 BC but that it was only written down in the 5th century BC by the magician Osthanes. His claims are not, however, supported by modern historians. The ancient Jewish people were often viewed as being knowledgeable in magic, which, according to legend, they had learned from Moses, who had learned it in Egypt. Among many ancient writers, Moses was seen as an Egyptian rather than a Jew. Two manuscripts likely dating to the 4th century, both of which purport to be the legendary eighth Book of Moses (the first five being the initial books in the Biblical Old Testament), present him as a polytheist who explained how to conjure gods and subdue demons. Meanwhile, there is definite evidence of grimoires being used by certain—particularly Gnostic—sects of early Christianity. In the Book of Enoch found within the Dead Sea Scrolls, for instance, there is information on astrology and the angels. In possible connection with the Book of Enoch, the idea of Enoch and his great-grandson Noah having some involvement with books of magic given to them by angels continued through to the medieval period. "Many of those [in Ephesus] who believed [in Christianity] now came and openly confessed their evil deeds. A number who had practised sorcery brought their scrolls together and burned them publicly. When they calculated the value of the scrolls, the total came to fifty thousand drachmas. In this way the word of the Lord spread widely and grew in power." Acts 19, c. 1st century Israelite King Solomon was a Biblical figure associated with magic and sorcery in the ancient world. The 1st-century Romano-Jewish historian Josephus mentioned a book circulating under the name of Solomon that contained incantations for summoning demons and described how a Jew called Eleazar used it to cure cases of possession. The book may have been the Testament of Solomon but was more probably a different work. The pseudepigraphic Testament of Solomon is one of the oldest magical texts. It is a Greek manuscript attributed to Solomon and was likely written in either Babylonia or Egypt sometime in the first five centuries AD; over 1,000 years after Solomon's death. The work tells of the building of The Temple and relates that construction was hampered by demons until the archangel Michael gave the King a magical ring. The ring, engraved with the Seal of Solomon, had the power to bind demons from doing harm. Solomon used it to lock demons in jars and commanded others to do his bidding, although eventually, according to the Testament, he was tempted into worshiping "false gods", such as Moloch, Baal, and Rapha. Subsequently, after losing favour with God, King Solomon wrote the work as a warning and a guide to the reader. When Christianity became the dominant faith of the Roman Empire, the early Church frowned upon the propagation of books on magic, connecting it with paganism, and burned books of magic. The New Testament records that after the unsuccessful exorcism by the seven sons of Sceva became known, many converts decided to burn their own magic and pagan books in the city of Ephesus; this advice was adopted on a large scale after the Christian ascent to power. In the Medieval period, the production of grimoires continued in Christendom, as well as amongst Jews and the followers of the newly founded Islamic faith. As the historian Owen Davies noted, "while the [Christian] Church was ultimately successful in defeating pagan worship it never managed to demarcate clearly and maintain a line of practice between religious devotion and magic." The use of such books on magic continued. In Christianised Europe, the Church divided books of magic into two kinds: those that dealt with "natural magic" and those that dealt in "demonic magic". The former was acceptable because it was viewed as merely taking note of the powers in nature that were created by God; for instance, the Anglo-Saxon leechbooks, which contained simple spells for medicinal purposes, were tolerated. Demonic magic was not acceptable, because it was believed that such magic did not come from God, but from the Devil and his demons. These grimoires dealt in such topics as necromancy, divination and demonology. Despite this, "there is ample evidence that the mediaeval clergy were the main practitioners of magic and therefore the owners, transcribers, and circulators of grimoires," while several grimoires were attributed to Popes. One such Arabic grimoire devoted to astral magic, the 10th-century Ghâyat al-Hakîm, was later translated into Latin and circulated in Europe during the 13th century under the name of the Picatrix. However, not all such grimoires of this era were based upon Arabic sources. The 13th-century Sworn Book of Honorius, for instance, was (like the ancient Testament of Solomon before it) largely based on the supposed teachings of the Biblical king Solomon and included ideas such as prayers and a ritual circle, with the mystical purpose of having visions of God, Hell, and Purgatory and gaining much wisdom and knowledge as a result. Another was the Hebrew Sefer Raziel Ha-Malakh, translated in Europe as the Liber Razielis Archangeli. A later book also claiming to have been written by Solomon was originally written in Greek during the 15th century, where it was known as the Magical Treatise of Solomon or the Little Key of the Whole Art of Hygromancy, Found by Several Craftsmen and by the Holy Prophet Solomon. In the 16th century, this work had been translated into Latin and Italian, being renamed the Clavicula Salomonis, or the Key of Solomon. In Christendom during the medieval age, grimoires were written that were attributed to other ancient figures, thereby supposedly giving them a sense of authenticity because of their antiquity. The German abbot and occultist Trithemius (1462–1516) supposedly had a Book of Simon the Magician, based upon the New Testament figure of Simon Magus. Simon Magus had been a contemporary of Jesus Christ's and—like the Biblical Jesus—had supposedly performed miracles, but had been demonized by the Medieval Church as a devil worshiper and evil individual. Similarly, it was commonly believed by medieval people that other ancient figures, such as the poet Virgil, astronomer Ptolemy, and philosopher Aristotle, had been involved in magic, and grimoires claiming to have been written by them were circulated. However, there were those who did not believe this; for instance, the Franciscan friar Roger Bacon (c. 1214–94) stated that books falsely claiming to be by ancient authors "ought to be prohibited by law." As the early modern period commenced in the late 15th century, many changes began to shock Europe that would have an effect on the production of grimoires. Historian Owen Davies classed the most important of these as the Protestant Reformation, and subsequent Catholic Counter-Reformation; The Witch-hunts, and the advent of printing. The Renaissance saw the continuation of interest in magic that had been found in the Medieval period, and in this period, there was an increased interest in Hermeticism among occultists and ceremonial magicians in Europe, largely fueled by the 1471 translation of the ancient Corpus hermeticum into Latin by Marsilio Ficino (1433–99). Alongside this, there was a rise in interest in the Jewish mysticism known as the Kabbalah, which was spread across the continent by Pico della Mirandola and Johannes Reuchlin. The most important magician of the Renaissance was Heinrich Cornelius Agrippa (1486–1535), who widely studied occult topics and earlier grimoires and eventually published his own, the Three Books of Occult Philosophy, in 1533. A similar figure was the Swiss magician known as Paracelsus (1493–1541), who published Of the Supreme Mysteries of Nature, in which he emphasised the distinction between good and bad magic. A third such individual was Johann Georg Faust, upon whom several pieces of later literature were written, such as Christopher Marlowe's Doctor Faustus, that portrayed him as consulting with demons. The idea of demonology had remained strong in the Renaissance, and several demonological grimoires were published, including The Fourth Book of Occult Philosophy, which falsely claimed to having been authored by Cornelius Agrippa, and the Pseudomonarchia Daemonum, which listed 69 demons. To counter this, the Roman Catholic Church authorised the production of many works of exorcism, the rituals of which were often very similar to those of demonic conjuration. Alongside these demonological works, grimoires on natural magic continued to be produced, including Magia Naturalis, written by Giambattista Della Porta (1535–1615). Iceland held magical traditions in regional work as well, most remarkably the Galdrabók, where numerous symbols of mystic origin are dedicated to the practitioner. These pieces give a perfect fusion of Germanic pagan and Christian influence, seeking splendid help from the Norse gods and referring to the titles of demons. The advent of printing in Europe meant that books could be mass-produced for the first time and could reach an ever-growing literate audience. Among the earliest books to be printed were magical texts. The nóminas were one example, consisting of prayers to the saints used as talismans. It was particularly in Protestant countries, such as Switzerland and the German states, which were not under the domination of the Roman Catholic Church, where such grimoires were published. Despite the advent of print, however, handwritten grimoires remained highly valued, as they were believed to contain inherent magical powers, and they continued to be produced. With increasing availability, people lower down the social scale and women began to have access to books on magic; this was often incorporated into the popular folk magic of the average people and, in particular, that of the cunning folk, who were professionally involved in folk magic. These works left Europe and were imported to the parts of Latin America controlled by the Spanish and Portuguese empires and the parts of North America controlled by the British and French empires. Throughout this period, the Inquisition, a Roman Catholic organisation, had organised the mass suppression of peoples and beliefs that they considered heretical. In many cases, grimoires were found in the heretics' possessions and destroyed. In 1599, the church published the Indexes of Prohibited Books, in which many grimoires were listed as forbidden, including several mediaeval ones, such as the Key of Solomon, which were still popular. In Christendom, there also began to develop a widespread fear of witchcraft, which was believed to be Satanic in nature. The subsequent hysteria, known as The Witch-hunts, caused the death of around 40,000 people, most of whom were women. Sometimes, those found with grimoires—particularly demonological ones—were prosecuted and dealt with as witches but, in most cases, those accused had no access to such books. Iceland—which had a relatively high literacy rate—proved an exception to this, with a third of the 134 witch trials held involving people who had owned grimoires. By the end of the Early Modern period, and the beginning of the Enlightenment, many European governments brought in laws prohibiting many superstitious beliefs in an attempt to bring an end to the Witch Hunts; this would invariably affect the release of grimoires. Meanwhile, Hermeticism and the Kabbalah would influence the creation of a mystical philosophy known as Rosicrucianism, which first appeared in the early 17th century, when two pamphlets detailing the existence of the mysterious Rosicrucian group were published in Germany. These claimed that Rosicrucianism had originated with a Medieval figure known as Christian Rosenkreuz, who had founded the Brotherhood of the Rosy Cross; however, there was no evidence for the existence of Rosenkreuz or the Brotherhood. The 18th century saw the rise of the Enlightenment, a movement devoted to science and rationalism, predominantly amongst the ruling classes. However, amongst much of Europe, belief in magic and witchcraft persisted, as did the witch trials in certain areas. Governments tried to crack down on magicians and fortune tellers, particularly in France, where the police viewed them as social pests who took money from the gullible, often in a search for treasure. In doing so, they confiscated many grimoires. Beginning in the 17th century, a new, ephemeral form of printed literature developed in France; the Bibliothèque bleue. Many grimoires published through this circulated among a growing percentage of the populace; in particular, the Grand Albert, the Petit Albert (1782), the Grimoire du Pape Honorius, and the Enchiridion Leonis Papae. The Petit Albert contained a wide variety of magic; for instance, dealing in simple charms for ailments, along with more complex things, such as the instructions for making a Hand of Glory. In the late 18th and early 19th centuries, following the French Revolution of 1789, a hugely influential grimoire was published under the title of the Grand Grimoire, which was considered particularly powerful, because it involved conjuring and making a pact with the devil's chief minister, Lucifugé Rofocale, to gain wealth from him. A new version of this grimoire was later published under the title of the Dragon rouge and was available for sale in many Parisian bookstores. Similar books published in France at this time included the Black Pullet and the Grimoirium Verum. The Black Pullet, probably authored in late-18th-century Rome or France, differs from the typical grimoires in that it does not claim to be a manuscript from antiquity, but told by a man who was a member of Napoleon's armed expeditionary forces in Egypt. The widespread availability of printed grimoires in France—despite the opposition of both the rationalists and the church—soon spread to neighbouring countries, such as Spain and Germany. In Switzerland, Geneva was commonly associated with the occult at the time, particularly by Catholics, because it had been a stronghold of Protestantism. Many of those interested in the esoteric traveled from Roman Catholic nations to Switzerland to purchase grimoires or to study with occultists. Soon, grimoires appeared that involved Catholic saints; one example that appeared during the 19th century, and became relatively popular—particularly in Spain—was the Libro de San Cipriano, or The Book of St. Ciprian, which falsely claimed to date from c. 1000. As with most grimoires of this period, it dealt with (among other things) how to discover treasure. In Germany, with the increased interest in folklore during the 19th century, many historians took an interest in magic and in grimoires. Several published extracts of such grimoires in their own books on the history of magic, thereby helping to further propagate them. Perhaps the most notable of these was the Protestant pastor Georg Conrad Horst (1779–1832) who, from 1821 to 1826, published a six-volume collection of magical texts in which he studied grimoires as a peculiarity of the Medieval mindset. Another scholar of the time interested in grimoires, the antiquarian bookseller Johann Scheible first published the Sixth and Seventh Books of Moses; two influential magical texts that claimed to have been written by the ancient Jewish figure Moses. The Sixth and Seventh Books of Moses were among the works which later spread to the countries of Scandinavia, where—in Danish and Swedish—grimoires were known as black books and were commonly found among members of the army. In Britain, new grimoires continued to be produced throughout the 18th century, such as Ebenezer Sibly's A New and Complete Illustration of the Celestial Science of Astrology. In the last decades of that century, London experienced a revival of interest in the occult which was further propagated by Francis Barrett's publication of The Magus in 1801. The Magus contained many things taken from older grimoires—particularly those of Cornelius Agrippa—and, while not achieving initial popularity upon release, it gradually became an influential text. One of Barrett's pupils, John Parkin, created his own handwritten grimoire The Grand Oracle of Heaven, or, The Art of Divine Magic, although it was never published, largely because Britain was at war with France, and grimoires were commonly associated with the French. The only writer to publish British grimoires widely in the early 19th century was Robert Cross Smith, who released The Philosophical Merlin (1822) and The Astrologer of the Nineteenth Century (1825), but neither sold well. In the late 19th century, several of these texts (including The Book of Abramelin and the Key of Solomon) were reclaimed by para-Masonic magical organisations, such as the Hermetic Order of the Golden Dawn and the Ordo Templi Orientis. The Secret Grimoire of Turiel claims to have been written in the 16th century, but no copy older than 1927 has been produced. A modern grimoire, the Simon Necronomicon, takes its name from a fictional book of magic in the stories of H. P. Lovecraft which was inspired by Babylonian mythology and the Ars Goetia—one of the five books that make up The Lesser Key of Solomon—concerning the summoning of demons. The Azoëtia of Andrew D. Chumbley has been described by Gavin Semple as a modern grimoire. The neopagan religion of Wicca publicly appeared in the 1940s, and Gerald Gardner introduced the Book of Shadows as a Wiccan grimoire. The term grimoire commonly serves as an alternative name for a spell book or tome of magical knowledge in fantasy fiction and role-playing games. The most famous fictional grimoire is the Necronomicon, a creation of H. P. Lovecraft.
[ { "paragraph_id": 0, "text": "A grimoire (/ɡrɪmˈwɑːr/ grim-WAHR) (also known as a \"book of spells\", \"magic book\", or a \"spellbook\") is a textbook of magic, typically including instructions on how to create magical objects like talismans and amulets, how to perform magical spells, charms, and divination, and how to summon or invoke supernatural entities such as angels, spirits, deities, and demons. In many cases, the books themselves are believed to be imbued with magical powers, although in many cultures, other sacred texts that are not grimoires (such as the Bible) have been believed to have supernatural properties intrinsically. The only contents found in a grimoire would be information on spells, rituals, the preparation of magical tools, and lists of ingredients and their magical correspondences. In this manner, while all books on magic could be thought of as grimoires, not all magical books should be thought of as grimoires.", "title": "" }, { "paragraph_id": 1, "text": "While the term grimoire is originally European—and many Europeans throughout history, particularly ceremonial magicians and cunning folk, have used grimoires—the historian Owen Davies has noted that similar books can be found all around the world, ranging from Jamaica to Sumatra. He also noted that in this sense, the world's first grimoires were created in Europe and the ancient Near East.", "title": "" }, { "paragraph_id": 2, "text": "The etymology of grimoire is unclear. It is most commonly believed that the term grimoire originated from the Old French word grammaire 'grammar', which had initially been used to refer to all books written in Latin. By the 18th century, the term had gained its now common usage in France and had begun to be used to refer purely to books of magic. Owen Davies presumed this was because \"many of them continued to circulate in Latin manuscripts\".", "title": "Etymology" }, { "paragraph_id": 3, "text": "However, the term grimoire later developed into a figure of speech among the French indicating something that was hard to understand. In the 19th century, with the increasing interest in occultism among the British following the publication of Francis Barrett's The Magus (1801), the term entered English in reference to books of magic.", "title": "Etymology" }, { "paragraph_id": 4, "text": "The earliest known written magical incantations come from ancient Mesopotamia (modern Iraq), where they have been found inscribed on cuneiform clay tablets that archaeologists excavated from the city of Uruk and dated to between the 5th and 4th centuries BC. The ancient Egyptians also employed magical incantations, which have been found inscribed on amulets and other items. The Egyptian magical system, known as heka, was greatly altered and expanded after the Macedonians, led by Alexander the Great, invaded Egypt in 332 BC.", "title": "History" }, { "paragraph_id": 5, "text": "Under the next three centuries of Hellenistic Egypt, the Coptic writing system evolved, and the Library of Alexandria was opened. This likely had an influence upon books of magic, with the trend on known incantations switching from simple health and protection charms to more specific things, such as financial success and sexual fulfillment. Around this time the legendary figure of Hermes Trismegistus developed as a conflation of the Egyptian god Thoth and the Greek Hermes; this figure was associated with writing and magic and, therefore, of books on magic.", "title": "History" }, { "paragraph_id": 6, "text": "The ancient Greeks and Romans believed that books on magic were invented by the Persians. The 1st-century AD writer Pliny the Elder stated that magic had been first discovered by the ancient philosopher Zoroaster around the year 647 BC but that it was only written down in the 5th century BC by the magician Osthanes. His claims are not, however, supported by modern historians.", "title": "History" }, { "paragraph_id": 7, "text": "The ancient Jewish people were often viewed as being knowledgeable in magic, which, according to legend, they had learned from Moses, who had learned it in Egypt. Among many ancient writers, Moses was seen as an Egyptian rather than a Jew. Two manuscripts likely dating to the 4th century, both of which purport to be the legendary eighth Book of Moses (the first five being the initial books in the Biblical Old Testament), present him as a polytheist who explained how to conjure gods and subdue demons.", "title": "History" }, { "paragraph_id": 8, "text": "Meanwhile, there is definite evidence of grimoires being used by certain—particularly Gnostic—sects of early Christianity. In the Book of Enoch found within the Dead Sea Scrolls, for instance, there is information on astrology and the angels. In possible connection with the Book of Enoch, the idea of Enoch and his great-grandson Noah having some involvement with books of magic given to them by angels continued through to the medieval period.", "title": "History" }, { "paragraph_id": 9, "text": "\"Many of those [in Ephesus] who believed [in Christianity] now came and openly confessed their evil deeds. A number who had practised sorcery brought their scrolls together and burned them publicly. When they calculated the value of the scrolls, the total came to fifty thousand drachmas. In this way the word of the Lord spread widely and grew in power.\"", "title": "History" }, { "paragraph_id": 10, "text": "Acts 19, c. 1st century", "title": "History" }, { "paragraph_id": 11, "text": "Israelite King Solomon was a Biblical figure associated with magic and sorcery in the ancient world. The 1st-century Romano-Jewish historian Josephus mentioned a book circulating under the name of Solomon that contained incantations for summoning demons and described how a Jew called Eleazar used it to cure cases of possession. The book may have been the Testament of Solomon but was more probably a different work. The pseudepigraphic Testament of Solomon is one of the oldest magical texts. It is a Greek manuscript attributed to Solomon and was likely written in either Babylonia or Egypt sometime in the first five centuries AD; over 1,000 years after Solomon's death.", "title": "History" }, { "paragraph_id": 12, "text": "The work tells of the building of The Temple and relates that construction was hampered by demons until the archangel Michael gave the King a magical ring. The ring, engraved with the Seal of Solomon, had the power to bind demons from doing harm. Solomon used it to lock demons in jars and commanded others to do his bidding, although eventually, according to the Testament, he was tempted into worshiping \"false gods\", such as Moloch, Baal, and Rapha. Subsequently, after losing favour with God, King Solomon wrote the work as a warning and a guide to the reader.", "title": "History" }, { "paragraph_id": 13, "text": "When Christianity became the dominant faith of the Roman Empire, the early Church frowned upon the propagation of books on magic, connecting it with paganism, and burned books of magic. The New Testament records that after the unsuccessful exorcism by the seven sons of Sceva became known, many converts decided to burn their own magic and pagan books in the city of Ephesus; this advice was adopted on a large scale after the Christian ascent to power.", "title": "History" }, { "paragraph_id": 14, "text": "In the Medieval period, the production of grimoires continued in Christendom, as well as amongst Jews and the followers of the newly founded Islamic faith. As the historian Owen Davies noted, \"while the [Christian] Church was ultimately successful in defeating pagan worship it never managed to demarcate clearly and maintain a line of practice between religious devotion and magic.\" The use of such books on magic continued. In Christianised Europe, the Church divided books of magic into two kinds: those that dealt with \"natural magic\" and those that dealt in \"demonic magic\".", "title": "History" }, { "paragraph_id": 15, "text": "The former was acceptable because it was viewed as merely taking note of the powers in nature that were created by God; for instance, the Anglo-Saxon leechbooks, which contained simple spells for medicinal purposes, were tolerated. Demonic magic was not acceptable, because it was believed that such magic did not come from God, but from the Devil and his demons. These grimoires dealt in such topics as necromancy, divination and demonology. Despite this, \"there is ample evidence that the mediaeval clergy were the main practitioners of magic and therefore the owners, transcribers, and circulators of grimoires,\" while several grimoires were attributed to Popes.", "title": "History" }, { "paragraph_id": 16, "text": "One such Arabic grimoire devoted to astral magic, the 10th-century Ghâyat al-Hakîm, was later translated into Latin and circulated in Europe during the 13th century under the name of the Picatrix. However, not all such grimoires of this era were based upon Arabic sources. The 13th-century Sworn Book of Honorius, for instance, was (like the ancient Testament of Solomon before it) largely based on the supposed teachings of the Biblical king Solomon and included ideas such as prayers and a ritual circle, with the mystical purpose of having visions of God, Hell, and Purgatory and gaining much wisdom and knowledge as a result. Another was the Hebrew Sefer Raziel Ha-Malakh, translated in Europe as the Liber Razielis Archangeli.", "title": "History" }, { "paragraph_id": 17, "text": "A later book also claiming to have been written by Solomon was originally written in Greek during the 15th century, where it was known as the Magical Treatise of Solomon or the Little Key of the Whole Art of Hygromancy, Found by Several Craftsmen and by the Holy Prophet Solomon. In the 16th century, this work had been translated into Latin and Italian, being renamed the Clavicula Salomonis, or the Key of Solomon.", "title": "History" }, { "paragraph_id": 18, "text": "In Christendom during the medieval age, grimoires were written that were attributed to other ancient figures, thereby supposedly giving them a sense of authenticity because of their antiquity. The German abbot and occultist Trithemius (1462–1516) supposedly had a Book of Simon the Magician, based upon the New Testament figure of Simon Magus. Simon Magus had been a contemporary of Jesus Christ's and—like the Biblical Jesus—had supposedly performed miracles, but had been demonized by the Medieval Church as a devil worshiper and evil individual.", "title": "History" }, { "paragraph_id": 19, "text": "Similarly, it was commonly believed by medieval people that other ancient figures, such as the poet Virgil, astronomer Ptolemy, and philosopher Aristotle, had been involved in magic, and grimoires claiming to have been written by them were circulated. However, there were those who did not believe this; for instance, the Franciscan friar Roger Bacon (c. 1214–94) stated that books falsely claiming to be by ancient authors \"ought to be prohibited by law.\"", "title": "History" }, { "paragraph_id": 20, "text": "As the early modern period commenced in the late 15th century, many changes began to shock Europe that would have an effect on the production of grimoires. Historian Owen Davies classed the most important of these as the Protestant Reformation, and subsequent Catholic Counter-Reformation; The Witch-hunts, and the advent of printing. The Renaissance saw the continuation of interest in magic that had been found in the Medieval period, and in this period, there was an increased interest in Hermeticism among occultists and ceremonial magicians in Europe, largely fueled by the 1471 translation of the ancient Corpus hermeticum into Latin by Marsilio Ficino (1433–99).", "title": "History" }, { "paragraph_id": 21, "text": "Alongside this, there was a rise in interest in the Jewish mysticism known as the Kabbalah, which was spread across the continent by Pico della Mirandola and Johannes Reuchlin. The most important magician of the Renaissance was Heinrich Cornelius Agrippa (1486–1535), who widely studied occult topics and earlier grimoires and eventually published his own, the Three Books of Occult Philosophy, in 1533. A similar figure was the Swiss magician known as Paracelsus (1493–1541), who published Of the Supreme Mysteries of Nature, in which he emphasised the distinction between good and bad magic. A third such individual was Johann Georg Faust, upon whom several pieces of later literature were written, such as Christopher Marlowe's Doctor Faustus, that portrayed him as consulting with demons.", "title": "History" }, { "paragraph_id": 22, "text": "The idea of demonology had remained strong in the Renaissance, and several demonological grimoires were published, including The Fourth Book of Occult Philosophy, which falsely claimed to having been authored by Cornelius Agrippa, and the Pseudomonarchia Daemonum, which listed 69 demons. To counter this, the Roman Catholic Church authorised the production of many works of exorcism, the rituals of which were often very similar to those of demonic conjuration. Alongside these demonological works, grimoires on natural magic continued to be produced, including Magia Naturalis, written by Giambattista Della Porta (1535–1615).", "title": "History" }, { "paragraph_id": 23, "text": "Iceland held magical traditions in regional work as well, most remarkably the Galdrabók, where numerous symbols of mystic origin are dedicated to the practitioner. These pieces give a perfect fusion of Germanic pagan and Christian influence, seeking splendid help from the Norse gods and referring to the titles of demons.", "title": "History" }, { "paragraph_id": 24, "text": "The advent of printing in Europe meant that books could be mass-produced for the first time and could reach an ever-growing literate audience. Among the earliest books to be printed were magical texts. The nóminas were one example, consisting of prayers to the saints used as talismans. It was particularly in Protestant countries, such as Switzerland and the German states, which were not under the domination of the Roman Catholic Church, where such grimoires were published.", "title": "History" }, { "paragraph_id": 25, "text": "Despite the advent of print, however, handwritten grimoires remained highly valued, as they were believed to contain inherent magical powers, and they continued to be produced. With increasing availability, people lower down the social scale and women began to have access to books on magic; this was often incorporated into the popular folk magic of the average people and, in particular, that of the cunning folk, who were professionally involved in folk magic. These works left Europe and were imported to the parts of Latin America controlled by the Spanish and Portuguese empires and the parts of North America controlled by the British and French empires.", "title": "History" }, { "paragraph_id": 26, "text": "Throughout this period, the Inquisition, a Roman Catholic organisation, had organised the mass suppression of peoples and beliefs that they considered heretical. In many cases, grimoires were found in the heretics' possessions and destroyed. In 1599, the church published the Indexes of Prohibited Books, in which many grimoires were listed as forbidden, including several mediaeval ones, such as the Key of Solomon, which were still popular.", "title": "History" }, { "paragraph_id": 27, "text": "In Christendom, there also began to develop a widespread fear of witchcraft, which was believed to be Satanic in nature. The subsequent hysteria, known as The Witch-hunts, caused the death of around 40,000 people, most of whom were women. Sometimes, those found with grimoires—particularly demonological ones—were prosecuted and dealt with as witches but, in most cases, those accused had no access to such books. Iceland—which had a relatively high literacy rate—proved an exception to this, with a third of the 134 witch trials held involving people who had owned grimoires. By the end of the Early Modern period, and the beginning of the Enlightenment, many European governments brought in laws prohibiting many superstitious beliefs in an attempt to bring an end to the Witch Hunts; this would invariably affect the release of grimoires.", "title": "History" }, { "paragraph_id": 28, "text": "Meanwhile, Hermeticism and the Kabbalah would influence the creation of a mystical philosophy known as Rosicrucianism, which first appeared in the early 17th century, when two pamphlets detailing the existence of the mysterious Rosicrucian group were published in Germany. These claimed that Rosicrucianism had originated with a Medieval figure known as Christian Rosenkreuz, who had founded the Brotherhood of the Rosy Cross; however, there was no evidence for the existence of Rosenkreuz or the Brotherhood.", "title": "History" }, { "paragraph_id": 29, "text": "The 18th century saw the rise of the Enlightenment, a movement devoted to science and rationalism, predominantly amongst the ruling classes. However, amongst much of Europe, belief in magic and witchcraft persisted, as did the witch trials in certain areas. Governments tried to crack down on magicians and fortune tellers, particularly in France, where the police viewed them as social pests who took money from the gullible, often in a search for treasure. In doing so, they confiscated many grimoires.", "title": "History" }, { "paragraph_id": 30, "text": "Beginning in the 17th century, a new, ephemeral form of printed literature developed in France; the Bibliothèque bleue. Many grimoires published through this circulated among a growing percentage of the populace; in particular, the Grand Albert, the Petit Albert (1782), the Grimoire du Pape Honorius, and the Enchiridion Leonis Papae. The Petit Albert contained a wide variety of magic; for instance, dealing in simple charms for ailments, along with more complex things, such as the instructions for making a Hand of Glory.", "title": "History" }, { "paragraph_id": 31, "text": "In the late 18th and early 19th centuries, following the French Revolution of 1789, a hugely influential grimoire was published under the title of the Grand Grimoire, which was considered particularly powerful, because it involved conjuring and making a pact with the devil's chief minister, Lucifugé Rofocale, to gain wealth from him. A new version of this grimoire was later published under the title of the Dragon rouge and was available for sale in many Parisian bookstores. Similar books published in France at this time included the Black Pullet and the Grimoirium Verum. The Black Pullet, probably authored in late-18th-century Rome or France, differs from the typical grimoires in that it does not claim to be a manuscript from antiquity, but told by a man who was a member of Napoleon's armed expeditionary forces in Egypt.", "title": "History" }, { "paragraph_id": 32, "text": "The widespread availability of printed grimoires in France—despite the opposition of both the rationalists and the church—soon spread to neighbouring countries, such as Spain and Germany. In Switzerland, Geneva was commonly associated with the occult at the time, particularly by Catholics, because it had been a stronghold of Protestantism. Many of those interested in the esoteric traveled from Roman Catholic nations to Switzerland to purchase grimoires or to study with occultists. Soon, grimoires appeared that involved Catholic saints; one example that appeared during the 19th century, and became relatively popular—particularly in Spain—was the Libro de San Cipriano, or The Book of St. Ciprian, which falsely claimed to date from c. 1000. As with most grimoires of this period, it dealt with (among other things) how to discover treasure.", "title": "History" }, { "paragraph_id": 33, "text": "In Germany, with the increased interest in folklore during the 19th century, many historians took an interest in magic and in grimoires. Several published extracts of such grimoires in their own books on the history of magic, thereby helping to further propagate them. Perhaps the most notable of these was the Protestant pastor Georg Conrad Horst (1779–1832) who, from 1821 to 1826, published a six-volume collection of magical texts in which he studied grimoires as a peculiarity of the Medieval mindset.", "title": "History" }, { "paragraph_id": 34, "text": "Another scholar of the time interested in grimoires, the antiquarian bookseller Johann Scheible first published the Sixth and Seventh Books of Moses; two influential magical texts that claimed to have been written by the ancient Jewish figure Moses. The Sixth and Seventh Books of Moses were among the works which later spread to the countries of Scandinavia, where—in Danish and Swedish—grimoires were known as black books and were commonly found among members of the army.", "title": "History" }, { "paragraph_id": 35, "text": "In Britain, new grimoires continued to be produced throughout the 18th century, such as Ebenezer Sibly's A New and Complete Illustration of the Celestial Science of Astrology. In the last decades of that century, London experienced a revival of interest in the occult which was further propagated by Francis Barrett's publication of The Magus in 1801. The Magus contained many things taken from older grimoires—particularly those of Cornelius Agrippa—and, while not achieving initial popularity upon release, it gradually became an influential text.", "title": "History" }, { "paragraph_id": 36, "text": "One of Barrett's pupils, John Parkin, created his own handwritten grimoire The Grand Oracle of Heaven, or, The Art of Divine Magic, although it was never published, largely because Britain was at war with France, and grimoires were commonly associated with the French. The only writer to publish British grimoires widely in the early 19th century was Robert Cross Smith, who released The Philosophical Merlin (1822) and The Astrologer of the Nineteenth Century (1825), but neither sold well.", "title": "History" }, { "paragraph_id": 37, "text": "In the late 19th century, several of these texts (including The Book of Abramelin and the Key of Solomon) were reclaimed by para-Masonic magical organisations, such as the Hermetic Order of the Golden Dawn and the Ordo Templi Orientis.", "title": "History" }, { "paragraph_id": 38, "text": "The Secret Grimoire of Turiel claims to have been written in the 16th century, but no copy older than 1927 has been produced.", "title": "History" }, { "paragraph_id": 39, "text": "A modern grimoire, the Simon Necronomicon, takes its name from a fictional book of magic in the stories of H. P. Lovecraft which was inspired by Babylonian mythology and the Ars Goetia—one of the five books that make up The Lesser Key of Solomon—concerning the summoning of demons. The Azoëtia of Andrew D. Chumbley has been described by Gavin Semple as a modern grimoire.", "title": "History" }, { "paragraph_id": 40, "text": "The neopagan religion of Wicca publicly appeared in the 1940s, and Gerald Gardner introduced the Book of Shadows as a Wiccan grimoire.", "title": "History" }, { "paragraph_id": 41, "text": "The term grimoire commonly serves as an alternative name for a spell book or tome of magical knowledge in fantasy fiction and role-playing games. The most famous fictional grimoire is the Necronomicon, a creation of H. P. Lovecraft.", "title": "History" } ]
A grimoire is a textbook of magic, typically including instructions on how to create magical objects like talismans and amulets, how to perform magical spells, charms, and divination, and how to summon or invoke supernatural entities such as angels, spirits, deities, and demons. In many cases, the books themselves are believed to be imbued with magical powers, although in many cultures, other sacred texts that are not grimoires have been believed to have supernatural properties intrinsically. The only contents found in a grimoire would be information on spells, rituals, the preparation of magical tools, and lists of ingredients and their magical correspondences. In this manner, while all books on magic could be thought of as grimoires, not all magical books should be thought of as grimoires. While the term grimoire is originally European—and many Europeans throughout history, particularly ceremonial magicians and cunning folk, have used grimoires—the historian Owen Davies has noted that similar books can be found all around the world, ranging from Jamaica to Sumatra. He also noted that in this sense, the world's first grimoires were created in Europe and the ancient Near East.
2001-10-10T07:53:53Z
2023-11-25T23:30:57Z
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Grand Guignol
Le Théâtre du Grand-Guignol (French pronunciation: [ɡʁɑ̃ ɡiɲɔl]: "The Theatre of the Great Puppet")—known as the Grand Guignol–was a theatre in the Pigalle district of Paris (7, cité Chaptal). From its opening in 1897 until its closing in 1962, it specialised in naturalistic horror shows. Its name is often used as a general term for graphic, amoral horror entertainment, a genre popular from Elizabethan and Jacobean theatre (for instance Shakespeare's Titus Andronicus, and Webster's The Duchess of Malfi and The White Devil), to today's splatter films. Le Théâtre du Grand-Guignol was founded in 1897 by Oscar Méténier, who planned it as a space for naturalist performance. With 293 seats, the venue was the smallest in Paris. A former chapel, the theatre's previous life was evident in the boxes – which looked like confessionals – and in the angels over the orchestra. Although the architecture created frustrating obstacles, the design that was initially a predicament ultimately became beneficial to the marketing of the theatre. The opaque furniture and gothic structures placed sporadically on the walls of the building exude a feeling of eeriness from the moment of entrance. People came to this theatre for an experience, not only to see a show. The audience at "Le Théâtre du Grand-Guignol" endured the terror of the shows because they wanted to be filled with strong "feelings" of something. Many attended the shows to get a feeling of sexual arousal. Underneath the balcony were boxes (originally built for nuns to watch church services) that were available for theatre-goers to rent during performances because they would get so aroused by the action happening on stage. It has been said that audience members would get so boisterous in the boxes, that actors would sometimes break character and yell something such as "Keep it down in there!" Conversely, there were audience members who could not physically handle the brutality of the actions taking place on stage. Frequently, the "special effects" would be too realistic and often an audience member would faint or vomit during performances. Theater director Max Maurey used the goriness to his advantage by hiring doctors to be at performances as a marketing ploy. The theatre owed its name to Guignol, a traditional Lyonnaise puppet character, joining political commentary with the style of Punch and Judy. The theatre's peak was between World War I and World War II, when it was frequented by royalty and celebrities in evening dress. Oscar Méténier was the Grand Guignol's founder and original director. Under his direction, the theatre produced plays about a class of people who were not considered appropriate subjects in other venues: prostitutes, criminals, street urchins and others at the lower end of Paris's social echelon. André Antoine was the founder of the Théâtre Libre and a collaborator of Méténier. His theatre gave Méténier a basic model to use for The Grand Guignol Theatre. Max Maurey served as director from 1898 to 1914. Maurey shifted the theatre's emphasis to the horror plays it would become famous for and judged the success of a performance by the number of patrons who passed out from shock; the average was two faintings each evening. Maurey discovered André de Lorde, who would become the most important playwright for the theatre. De Lorde was the theatre's principal playwright from 1901 to 1926. He wrote at least 100 plays for the Grand Guignol, such as The Old Woman, The Ultimate Torture, A Crime in the Mad House and more. He collaborated with experimental psychologist Alfred Binet to create plays about insanity, one of the theatre's favourite and frequently recurring themes. Camille Choisy served as director from 1914 to 1930. He contributed his expertise in special effects and scenery to the theatre's distinctive style. Paula Maxa [fr] was one of the Grand Guignol's best-known performers. From 1917 to the 1930s, she performed most frequently as a victim and was known as "the most assassinated woman in the world." During her career at the Grand Guignol, Maxa's characters were murdered more than 10,000 times in at least 60 different ways and raped at least 3,000 times. Jack Jouvin served as director from 1930 to 1937. He shifted the theatre's subject matter, focusing performances not on gory horror but psychological drama. Under his leadership, the theatre's popularity waned and, after World War II, it was not well-attended. Charles Nonon was the theatre's last director. In a typical Grand Guignol performance patrons would see five or six short plays, all in a style that attempted to be brutally true to the theatre's naturalistic ideals. The most popular and best-known were the horror plays, which featured a distinctly bleak worldview and gory special effects, particularly in their climaxes. The horrors depicted at Grand Guignol were generally not supernatural; rather these plays often explored altered states like insanity, hypnosis, or panic. To heighten the effect, the horror plays were often alternated with comedies, a lineup referred to as "hot and cold showers." Examples of Grand Guignol horror shows included: Audiences waned in the years following World War II, and the Grand Guignol closed its doors in 1962. Management attributed the closure in part to the fact that the theatre's faux horrors had been eclipsed by the actual events of the Holocaust two decades earlier. "We could never equal Buchenwald," said its final director, Charles Nonon. "Before the war, everyone felt that what was happening onstage was impossible. Now we know that these things, and worse, are possible in reality." The Grand Guignol building still exists. It is occupied by the International Visual Theatre [fr], a company devoted to presenting plays in sign language. While the original Grand Guignol attempted to present naturalistic horror, the performances would seem melodramatic and heightened to today's audiences. For this reason, the term is often applied to films and plays of a stylized nature with heightened acting, melodrama and theatrical effects such as Sweeney Todd, Sleepy Hollow, Quills, and the Hammer Horror films that went before them. What Ever Happened to Baby Jane?; Hush...Hush, Sweet Charlotte; What Ever Happened to Aunt Alice?; What's the Matter with Helen?; Night Watch and Whoever Slew Auntie Roo? form a sub-branch of the genre called Grande Dame Guignol for its use of aging A-list actresses in sensational horror films. Audiences had strong reactions to the new disturbing themes the horror plays presented. One of the most prevalent themes staged at the Grand-Guignol was the demoralization and corruption of science. The "evil doctor" was a recurring trope in the horror shows performed. The popular show The System of Doctor Goudron and Professor Plume by André de Lorde displays a depiction of a doctor typical of the theater. Dr. Goudron is portrayed as manic, insane, unreliable. He is seen "pac[ing] nervously" and "jumping on [a] desk and gesticulating". Later Lorde depicts the scientist as violent, with Goudron attempting to carve out an eye and then bite the hands of guards. During the time, curiosity and skepticism ravaged science and medicine. The depiction of scientists at the Grand-Guignol reflected the public attitude of fear and disdain. Medical science held a reputation of "terror and peculiar infamy". Middle-class Parisian society believed science existed in a world of frivolity and falsehood, whereas art existed in a world of honesty. Poet Matthew Arnold is an exemplary lens to use in order to understand these sympathies. The themes the Grand-Guignol introduced into the horror genre affected how the genre exists today. The Grand-Guignol's introduction of naturalism into horror "unmasked brutality of contemporary culture". Previously, horror served as escapism, dealing with the supernatural and unrelatable. After the theater introduced relatable topics into the genre, the audience could visualize the plots taking place and thus experienced greater fear - the Grand-Guignol transformed the horror plot into something the audience could feel personally. Horror became a vehicle for ideas and philosophy where deep "insights gave way to spectacle, and spectacle to violence and gore, until in the end little was left but the gore". Today the horror genre begins with "optimism and hope", which "wither before random, chaotic, and inevitable violence". Grand Guignol flourished briefly in London in the early 1920s under the direction of Jose Levy, where it attracted the talents of Sybil Thorndike, Noël Coward, and Richard Hughes (whose one-act play The Sisters' Tragedy outshone even Coward's), and a series of short English "Grand Guignol" films (using original screenplays, not play adaptations) was made at the same time, directed by Fred Paul. Several of the films exist at the BFI National Archive. The Grand Guignol was revived once again in London in 1945, under the direction of Frederick Witney, where it ran for two seasons at the Granville Theatre. These included premiers of Witney's own work as well as adaptations of French originals. In recent years, English director-writer, Richard Mazda, has re-introduced New York audiences to the Grand Guignol. His acting troupe, The Queens Players, have produced six mainstage productions of Grand Guignol plays, and Mazda is writing new plays in the classic Guignol style. The sixth production, Theatre of Fear, included De Lorde's famous adaptation of Poe's The System of Doctor Tarr and Professor Fether (Le Systéme du Dr Goudron et Pr Plume) as well as two original plays, Double Crossed and The Good Death alongside The Tell Tale Heart. The 1963 mondo film Ecco (Original title: Il mondo di notte numero 3, directed by Gianni Proia) includes a scene which may have been filmed at the Grand Guignol theatre during its final years. The Swiss theatre company Compagnie Pied de Biche has revisited the Grand Guignol genre in contemporary contexts since 2008. The company staged in 2010 a diptych Impact & Dr. Incubis, based on original texts by Nicolas Yazgi and directed by Frédéric Ozier. More than literal adaptations, the plays address violence, death, crime and fear in contemporary contexts, while revisiting many trope of the original Grand Guignol corpus, often with humour. Recently formed London-based Grand Guignol company Theatre of the Damned, brought their first production to the Camden Fringe in 2010 and produced the award nominated Grand Guignol in November of that year. In 2011, they staged Revenge of the Grand Guignol at the Courtyard Theatre, London, as part of the London Horror Festival. Between 2011 and 2016, Baltimore-based Yellow Sign Theatre performed Grand Guignol productions (including a heavily updated version of Le Systéme du Dr Goudron et Pr Plume) as well as integrating Guignol elements into other performance forms. In November 2014, 86 years after the last show of Alfredo Sainati's La Compagnia del Grand-Guignol, founded in 1908 and which had been the only example of Grand Guignol in Italy, the Convivio d'Arte Company presented in Milan Grand Guignol de Milan: Le Cabaret des Vampires. The show was an original tribute to Grand Guignol, a horror vaudeville with various horror and grotesque performances such as monologues, live music and burlesque, with a satirical black humour conduction. Sources 48°52′53″N 2°19′59″E / 48.8814°N 2.3331°E / 48.8814; 2.3331
[ { "paragraph_id": 0, "text": "Le Théâtre du Grand-Guignol (French pronunciation: [ɡʁɑ̃ ɡiɲɔl]: \"The Theatre of the Great Puppet\")—known as the Grand Guignol–was a theatre in the Pigalle district of Paris (7, cité Chaptal). From its opening in 1897 until its closing in 1962, it specialised in naturalistic horror shows. Its name is often used as a general term for graphic, amoral horror entertainment, a genre popular from Elizabethan and Jacobean theatre (for instance Shakespeare's Titus Andronicus, and Webster's The Duchess of Malfi and The White Devil), to today's splatter films.", "title": "" }, { "paragraph_id": 1, "text": "Le Théâtre du Grand-Guignol was founded in 1897 by Oscar Méténier, who planned it as a space for naturalist performance. With 293 seats, the venue was the smallest in Paris.", "title": "Theatre" }, { "paragraph_id": 2, "text": "A former chapel, the theatre's previous life was evident in the boxes – which looked like confessionals – and in the angels over the orchestra. Although the architecture created frustrating obstacles, the design that was initially a predicament ultimately became beneficial to the marketing of the theatre. The opaque furniture and gothic structures placed sporadically on the walls of the building exude a feeling of eeriness from the moment of entrance. People came to this theatre for an experience, not only to see a show. The audience at \"Le Théâtre du Grand-Guignol\" endured the terror of the shows because they wanted to be filled with strong \"feelings\" of something. Many attended the shows to get a feeling of sexual arousal. Underneath the balcony were boxes (originally built for nuns to watch church services) that were available for theatre-goers to rent during performances because they would get so aroused by the action happening on stage. It has been said that audience members would get so boisterous in the boxes, that actors would sometimes break character and yell something such as \"Keep it down in there!\" Conversely, there were audience members who could not physically handle the brutality of the actions taking place on stage. Frequently, the \"special effects\" would be too realistic and often an audience member would faint or vomit during performances. Theater director Max Maurey used the goriness to his advantage by hiring doctors to be at performances as a marketing ploy.", "title": "Theatre" }, { "paragraph_id": 3, "text": "The theatre owed its name to Guignol, a traditional Lyonnaise puppet character, joining political commentary with the style of Punch and Judy.", "title": "Theatre" }, { "paragraph_id": 4, "text": "The theatre's peak was between World War I and World War II, when it was frequented by royalty and celebrities in evening dress.", "title": "Theatre" }, { "paragraph_id": 5, "text": "Oscar Méténier was the Grand Guignol's founder and original director. Under his direction, the theatre produced plays about a class of people who were not considered appropriate subjects in other venues: prostitutes, criminals, street urchins and others at the lower end of Paris's social echelon.", "title": "Important people" }, { "paragraph_id": 6, "text": "André Antoine was the founder of the Théâtre Libre and a collaborator of Méténier. His theatre gave Méténier a basic model to use for The Grand Guignol Theatre.", "title": "Important people" }, { "paragraph_id": 7, "text": "Max Maurey served as director from 1898 to 1914. Maurey shifted the theatre's emphasis to the horror plays it would become famous for and judged the success of a performance by the number of patrons who passed out from shock; the average was two faintings each evening. Maurey discovered André de Lorde, who would become the most important playwright for the theatre.", "title": "Important people" }, { "paragraph_id": 8, "text": "De Lorde was the theatre's principal playwright from 1901 to 1926. He wrote at least 100 plays for the Grand Guignol, such as The Old Woman, The Ultimate Torture, A Crime in the Mad House and more. He collaborated with experimental psychologist Alfred Binet to create plays about insanity, one of the theatre's favourite and frequently recurring themes.", "title": "Important people" }, { "paragraph_id": 9, "text": "Camille Choisy served as director from 1914 to 1930. He contributed his expertise in special effects and scenery to the theatre's distinctive style.", "title": "Important people" }, { "paragraph_id": 10, "text": "Paula Maxa [fr] was one of the Grand Guignol's best-known performers. From 1917 to the 1930s, she performed most frequently as a victim and was known as \"the most assassinated woman in the world.\" During her career at the Grand Guignol, Maxa's characters were murdered more than 10,000 times in at least 60 different ways and raped at least 3,000 times.", "title": "Important people" }, { "paragraph_id": 11, "text": "Jack Jouvin served as director from 1930 to 1937. He shifted the theatre's subject matter, focusing performances not on gory horror but psychological drama. Under his leadership, the theatre's popularity waned and, after World War II, it was not well-attended.", "title": "Important people" }, { "paragraph_id": 12, "text": "Charles Nonon was the theatre's last director.", "title": "Important people" }, { "paragraph_id": 13, "text": "In a typical Grand Guignol performance patrons would see five or six short plays, all in a style that attempted to be brutally true to the theatre's naturalistic ideals. The most popular and best-known were the horror plays, which featured a distinctly bleak worldview and gory special effects, particularly in their climaxes. The horrors depicted at Grand Guignol were generally not supernatural; rather these plays often explored altered states like insanity, hypnosis, or panic. To heighten the effect, the horror plays were often alternated with comedies, a lineup referred to as \"hot and cold showers.\"", "title": "Plays" }, { "paragraph_id": 14, "text": "Examples of Grand Guignol horror shows included:", "title": "Plays" }, { "paragraph_id": 15, "text": "Audiences waned in the years following World War II, and the Grand Guignol closed its doors in 1962. Management attributed the closure in part to the fact that the theatre's faux horrors had been eclipsed by the actual events of the Holocaust two decades earlier. \"We could never equal Buchenwald,\" said its final director, Charles Nonon. \"Before the war, everyone felt that what was happening onstage was impossible. Now we know that these things, and worse, are possible in reality.\"", "title": "Closure" }, { "paragraph_id": 16, "text": "The Grand Guignol building still exists. It is occupied by the International Visual Theatre [fr], a company devoted to presenting plays in sign language.", "title": "Closure" }, { "paragraph_id": 17, "text": "While the original Grand Guignol attempted to present naturalistic horror, the performances would seem melodramatic and heightened to today's audiences. For this reason, the term is often applied to films and plays of a stylized nature with heightened acting, melodrama and theatrical effects such as Sweeney Todd, Sleepy Hollow, Quills, and the Hammer Horror films that went before them. What Ever Happened to Baby Jane?; Hush...Hush, Sweet Charlotte; What Ever Happened to Aunt Alice?; What's the Matter with Helen?; Night Watch and Whoever Slew Auntie Roo? form a sub-branch of the genre called Grande Dame Guignol for its use of aging A-list actresses in sensational horror films.", "title": "Thematic and structural analysis" }, { "paragraph_id": 18, "text": "Audiences had strong reactions to the new disturbing themes the horror plays presented. One of the most prevalent themes staged at the Grand-Guignol was the demoralization and corruption of science. The \"evil doctor\" was a recurring trope in the horror shows performed. The popular show The System of Doctor Goudron and Professor Plume by André de Lorde displays a depiction of a doctor typical of the theater. Dr. Goudron is portrayed as manic, insane, unreliable. He is seen \"pac[ing] nervously\" and \"jumping on [a] desk and gesticulating\". Later Lorde depicts the scientist as violent, with Goudron attempting to carve out an eye and then bite the hands of guards. During the time, curiosity and skepticism ravaged science and medicine. The depiction of scientists at the Grand-Guignol reflected the public attitude of fear and disdain. Medical science held a reputation of \"terror and peculiar infamy\". Middle-class Parisian society believed science existed in a world of frivolity and falsehood, whereas art existed in a world of honesty. Poet Matthew Arnold is an exemplary lens to use in order to understand these sympathies.", "title": "Thematic and structural analysis" }, { "paragraph_id": 19, "text": "The themes the Grand-Guignol introduced into the horror genre affected how the genre exists today. The Grand-Guignol's introduction of naturalism into horror \"unmasked brutality of contemporary culture\". Previously, horror served as escapism, dealing with the supernatural and unrelatable. After the theater introduced relatable topics into the genre, the audience could visualize the plots taking place and thus experienced greater fear - the Grand-Guignol transformed the horror plot into something the audience could feel personally. Horror became a vehicle for ideas and philosophy where deep \"insights gave way to spectacle, and spectacle to violence and gore, until in the end little was left but the gore\". Today the horror genre begins with \"optimism and hope\", which \"wither before random, chaotic, and inevitable violence\".", "title": "Thematic and structural analysis" }, { "paragraph_id": 20, "text": "Grand Guignol flourished briefly in London in the early 1920s under the direction of Jose Levy, where it attracted the talents of Sybil Thorndike, Noël Coward, and Richard Hughes (whose one-act play The Sisters' Tragedy outshone even Coward's), and a series of short English \"Grand Guignol\" films (using original screenplays, not play adaptations) was made at the same time, directed by Fred Paul. Several of the films exist at the BFI National Archive.", "title": "Legacy and revivals" }, { "paragraph_id": 21, "text": "The Grand Guignol was revived once again in London in 1945, under the direction of Frederick Witney, where it ran for two seasons at the Granville Theatre. These included premiers of Witney's own work as well as adaptations of French originals.", "title": "Legacy and revivals" }, { "paragraph_id": 22, "text": "In recent years, English director-writer, Richard Mazda, has re-introduced New York audiences to the Grand Guignol. His acting troupe, The Queens Players, have produced six mainstage productions of Grand Guignol plays, and Mazda is writing new plays in the classic Guignol style. The sixth production, Theatre of Fear, included De Lorde's famous adaptation of Poe's The System of Doctor Tarr and Professor Fether (Le Systéme du Dr Goudron et Pr Plume) as well as two original plays, Double Crossed and The Good Death alongside The Tell Tale Heart.", "title": "Legacy and revivals" }, { "paragraph_id": 23, "text": "The 1963 mondo film Ecco (Original title: Il mondo di notte numero 3, directed by Gianni Proia) includes a scene which may have been filmed at the Grand Guignol theatre during its final years.", "title": "Legacy and revivals" }, { "paragraph_id": 24, "text": "The Swiss theatre company Compagnie Pied de Biche has revisited the Grand Guignol genre in contemporary contexts since 2008. The company staged in 2010 a diptych Impact & Dr. Incubis, based on original texts by Nicolas Yazgi and directed by Frédéric Ozier. More than literal adaptations, the plays address violence, death, crime and fear in contemporary contexts, while revisiting many trope of the original Grand Guignol corpus, often with humour.", "title": "Legacy and revivals" }, { "paragraph_id": 25, "text": "Recently formed London-based Grand Guignol company Theatre of the Damned, brought their first production to the Camden Fringe in 2010 and produced the award nominated Grand Guignol in November of that year. In 2011, they staged Revenge of the Grand Guignol at the Courtyard Theatre, London, as part of the London Horror Festival.", "title": "Legacy and revivals" }, { "paragraph_id": 26, "text": "Between 2011 and 2016, Baltimore-based Yellow Sign Theatre performed Grand Guignol productions (including a heavily updated version of Le Systéme du Dr Goudron et Pr Plume) as well as integrating Guignol elements into other performance forms.", "title": "Legacy and revivals" }, { "paragraph_id": 27, "text": "In November 2014, 86 years after the last show of Alfredo Sainati's La Compagnia del Grand-Guignol, founded in 1908 and which had been the only example of Grand Guignol in Italy, the Convivio d'Arte Company presented in Milan Grand Guignol de Milan: Le Cabaret des Vampires. The show was an original tribute to Grand Guignol, a horror vaudeville with various horror and grotesque performances such as monologues, live music and burlesque, with a satirical black humour conduction.", "title": "Legacy and revivals" }, { "paragraph_id": 28, "text": "Sources", "title": "Footnotes" }, { "paragraph_id": 29, "text": "48°52′53″N 2°19′59″E / 48.8814°N 2.3331°E / 48.8814; 2.3331", "title": "External links" } ]
Le Théâtre du Grand-Guignol—known as the Grand Guignol–was a theatre in the Pigalle district of Paris. From its opening in 1897 until its closing in 1962, it specialised in naturalistic horror shows. Its name is often used as a general term for graphic, amoral horror entertainment, a genre popular from Elizabethan and Jacobean theatre, to today's splatter films.
2002-02-25T15:51:15Z
2023-11-10T01:27:22Z
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https://en.wikipedia.org/wiki/Grand_Guignol
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Great Plague of London
The Great Plague of London, lasting from 1665 to 1666, was the last major epidemic of the bubonic plague to occur in England. It happened within the centuries-long Second Pandemic, a period of intermittent bubonic plague epidemics that originated in Central Asia in 1331 (the first year of the Black Death), and included related diseases such as pneumonic plague and septicemic plague, which lasted until 1750. The Great Plague killed an estimated 100,000 people—almost a quarter of London's population—in 18 months. The plague was caused by the Yersinia pestis bacterium, which is usually transmitted to a human by the bite of a flea or louse. The 1665–66 epidemic was on a much smaller scale than the earlier Black Death pandemic. It became known afterwards as the "great" plague mainly because it was the last widespread outbreak of bubonic plague in England during the 400-year Second Pandemic. The plague was endemic in 17th-century London, as it was in other European cities at the time. The disease periodically erupted into massive epidemics. There were 30,000 deaths due to the plague in 1603, 35,000 in 1625, 10,000 in 1636, and smaller numbers in other years. In late 1664, a bright comet was seen in the sky, and the people of London became fearful, wondering what evil event it portended. London at that time was a city of about 448 acres surrounded by a city wall that had originally been built to keep out raiding bands, and, in the south, by the River Thames. There were gates in the wall at Ludgate, Newgate, Aldersgate, Cripplegate, Moorgate, Bishopsgate and Aldgate, and the Thames was crossable at London Bridge. In the poorer parts of the city, filled with overcrowded tenements and garrets, hygiene was impossible to maintain. There was no sanitation, and open drains flowed along the centre of winding streets. The cobbles were slippery with animal droppings, rubbish and the slops thrown out of the houses; they were muddy and buzzing with flies in summer, and awash with sewage in winter. The City Corporation employed "rakers" to remove the worst of the filth, and it was transported to mounds outside the walls, where it accumulated and continued to decompose. The stench was overwhelming, and people walked around with handkerchiefs or nosegays pressed against their nostrils. Some of the city's necessities, such as coal, arrived by barge, but most came by road. Carts, carriages, horses and pedestrians were crowded together, and the gateways in the wall formed bottlenecks through which it was difficult to progress. The nineteen-arch London Bridge was even more congested. Those who were better-off used hackney carriages and sedan chairs to get to their destinations without getting filthy. The poor walked, and might be drenched by water tossed up by wheeled vehicles, slops thrown into the street, or water pouring off overhanging roofs. Another hazard was the choking black smoke belching forth from soap factories, breweries, iron smelters and about 15,000 households that were burning coal to heat their homes. Outside the city walls, shanty towns with wooden shacks and no sanitation had sprung up, providing homes for the craftsmen and tradespeople who had flocked to the already overcrowded city. The government had tried to limit the development of these "suburbs", but had failed: Over a quarter of a million people lived in them. When Royalists had fled the country during the Commonwealth, they had left many fine town houses vacant, and some immigrants to London had crowded into them, converting them into tenements that housed different families in every room. These properties were soon vandalised and became rat-infested. The City of London proper was administered by the Lord Mayor, the Aldermen and the common councillors, but some parts of the greater metropolitan area were not legally part of the city. Some of these areas, both inside the City walls and outside its boundaries, had long been organised into districts of various sizes, called "liberties", that had historically been granted rights to self-government. (Many had originally been associated with the religious institutions that were abolished in the Dissolution of the Monasteries, whereupon their historic rights and property had been transferred to secular owners.) By 1665, the walled City was surrounded by a ring of liberties which had come under its authority, and these had come to be referred to collectively as 'the City and Liberties'. However, this area was surrounded by additional suburbs with other independent administrations. For example, Westminster was an independent town with its own liberties, joined to London by urban development, and the Tower of London was an independent liberty. Areas that were not part of any of these various independent administrations came under the authority of the county of Middlesex if they were north of the river, and under the authority of Surrey if they were south of the river. At that time, bubonic plague was a much feared disease, but its cause was not understood. Many mistakenly blamed emanations from the earth, "pestilential effluvia", unusual weather, sickness in livestock, abnormal behaviour of animals or an increase in the numbers of moles, frogs, mice or flies. It was not until 1894 that its causal agent, the bacterium Yersinia pestis, was identified by Alexandre Yersin, and its transmission by rat fleas became known. Although the Great Plague in London was long assumed to be bubonic plague, caused by Yersinia pestis, this was only confirmed (by DNA analysis) in 2016. It is now believed that human body lice also played a key role in causing infections, perhaps more so than rats. In order to judge the severity of an epidemic, it is first necessary to know how big the population was in which it occurred. There was no official census of the population to provide this figure, and the best contemporary count comes from the work of John Graunt (1620–1674), who was one of the earliest Fellows of the Royal Society and one of the first demographers, bringing a scientific approach to the collection of statistics. In 1662, he estimated that 384,000 people lived in the City of London, the Liberties, Westminster and the out-parishes, based on figures in the Bills of Mortality published each week in the capital. These different districts with different administrations constituted the officially recognized extent of London as a whole. In 1665, he revised his estimate to "not above 460,000". Other contemporaries put the figure higher (the French Ambassador, for example, suggested 600,000), but with no mathematical basis to support their estimates. The next largest city in the kingdom was Norwich, with a population of 30,000. There was no duty to report a death to anyone in authority. Instead, each parish appointed two or more "searchers of the dead", whose duty was to inspect a corpse and determine the cause of death. A searcher was entitled to charge a small fee from relatives for each death they reported, and so habitually the parish would appoint someone to the post who would otherwise be destitute and would be receiving support from the parish poor rate. Typically, this meant searchers would be old women who were illiterate, might know little about identifying diseases and who would be open to dishonesty. Searchers would typically learn about a death either from the local sexton who had been asked to dig a grave or from the tolling of a church bell. Anyone who did not report a death to their local church, such as Quakers, Anabaptists, other non-Anglican Christians or Jews, frequently did not get included in the official records. Searchers during times of plague were required to live apart from the community, avoid other people and carry a white stick to warn of their occupation when outdoors, and stay indoors except when performing their duties, to avoid spreading the diseases. Searchers reported to the Parish Clerk, who made a return each week to the Company of Parish Clerks in Brode Lane. Figures were then passed to the Lord Mayor and then to the Minister of State once plague became a matter of national concern. The reported figures were used to compile the Bills of Mortality, which listed total deaths in each parish and whether by the plague. The system of Searchers to report the cause of death continued until 1836. Graunt recorded the incompetence of the Searchers at identifying true causes of death, remarking on the frequent recording of 'consumption' rather than other diseases which were recognized then by physicians. He suggested a cup of ale and a doubling of their fee to two groats rather than one was sufficient for Searchers to change the cause of death to one more convenient for the householders. No one wished to be known as having had a death by plague in their household, and Parish Clerks, too, connived in covering up cases of plague in their official returns. Analysis of the Bills of Mortality during the months plague took hold shows a rise in deaths other than by plague well above the average death rate, a tell-tale sign of misrepresentation of the true cause of death. As plague spread, a system of quarantine was introduced, whereby any house where someone had died from plague would be locked up and no one allowed to enter or leave for 40 days. This frequently led to the deaths of the other inhabitants, by neglect if not from the plague, and provided ample incentive not to report the disease. The official returns record 68,596 cases of plague, but a reasonable estimate suggests this figure is 30,000 short of the true total. A plague house was marked with a red cross on the door with the words "Lord have mercy upon us", and a watchman stood guard outside. Reports of plague around Europe began to reach England in the 1660s, causing the Privy Council to consider what steps might be taken to prevent it crossing to England. Quarantining (isolation) of ships had been used during previous outbreaks and was again introduced for ships coming to London in November 1663, following outbreaks in Amsterdam and Hamburg. Two naval ships were assigned to intercept any vessels entering the Thames estuary. Ships from infected ports were required to moor at Hole Haven on Canvey Island for a trentine – period of 30 days – before being allowed to travel up-river. Ships from ports free of plague or completing their isolation period were given a certificate of health and allowed to travel on. A second inspection line was established between the forts on opposite banks of the Thames at Tilbury and Gravesend with instructions to pass only ships with a certificate. The isolation period was increased to forty days – a quarantine – in May 1664 as the continental plague worsened, and the areas subject to quarantine changed with the news of the spread of plague to include all of Holland, Zeeland and Friesland (all regions of the Dutch Republic); restrictions on Hamburg were removed in November. Quarantine measures against ships coming from the Dutch Republic were put in place in 29 other ports from May, starting with Great Yarmouth. The Dutch ambassador objected at the constraint of trade with his country, but England responded that it had been one of the last countries introducing such restrictions. Regulations were enforced quite strictly, so that people or houses where voyagers had come ashore without serving their quarantine were also subjected to 40 days of quarantine. Plague was one of the hazards of life in Britain from its dramatic appearance in 1348 with the Black Death. The Bills of Mortality began to be published regularly in 1603, in which year 33,347 deaths were recorded from plague. Between then and 1665, only four years had no recorded cases. In 1563, a thousand people were reportedly dying in London each week. In 1593, there were 15,003 deaths, 1625 saw 41,313 dead, between 1640 and 1646 came 11,000 deaths, culminating in 3,597 for 1647. The 1625 outbreak was recorded at the time as the 'Great Plague', until deaths from the plague of 1665 surpassed it. These official figures are likely to under-report actual numbers. Plague was sufficiently uncommon that medical practitioners might have had no personal experience of seeing the disease; medical training varied from those who had attended the college of physicians, to apothecaries who also acted as doctors, to charlatans. Other diseases abounded, such as an outbreak of smallpox the year before, and these uncertainties all added to difficulties identifying the true start of the epidemic. Contemporary accounts suggest cases of plague occurred through the winter of 1664–65, some of which were fatal but a number of which did not display the virulence of the later epidemic. The winter was cold, the ground frozen from December to March, river traffic on the Thames twice blocked by ice, and it may be that the cold weather held back its spread. This outbreak of bubonic plague in England is thought to have spread from the Netherlands, where the disease had been occurring intermittently since 1599. It is unclear exactly where the disease first struck but the initial contagion may have arrived with Dutch trading ships carrying bales of cotton from Amsterdam, which was ravaged by the disease in 1663–64, with a mortality given of 50,000. The first areas to be struck are believed to be the dock areas just outside London, and the parish of St Giles. In both of these localities, poor workers were crowded into ill-kept structures. Two suspicious deaths were recorded in St Giles parish in 1664 and another in February 1665. These did not appear as plague deaths on the Bills of Mortality, so no control measures were taken by the authorities, but the total number of people dying in London during the first four months of 1665 showed a marked increase. By the end of April, only four plague deaths had been recorded, two in the parish of St. Giles, but total deaths per week had risen from around 290 to 398. There had been three official cases in April, a level of plague which in earlier years had not induced any official response, but the Privy Council now acted to introduce household quarantine. Justices of the Peace in Middlesex were instructed to investigate any suspected cases and to shut up the house if it was confirmed. Shortly after, a similar order was issued by the King's Bench to the City and Liberties. A riot broke out in St. Giles when the first house was sealed up; the crowd broke down the door and released the inhabitants. Rioters caught were punished severely. Instructions were given to build pest-houses, which were essentially isolation hospitals built away from other people where the sick could be cared for (or stay until they died). This official activity suggests that despite the few recorded cases, the government was already aware that this was a serious outbreak of plague. With the arrival of warmer weather, the disease began to take a firmer hold. In the week 2–9 May, there were three recorded deaths in the parish of St Giles, four in neighbouring St Clement Danes and one each in St Andrew Holborn and St Mary Woolchurch Haw. Only the last was actually inside the city walls. A Privy Council committee was formed to investigate methods to best prevent the spread of plague, and measures were introduced to close some of the ale houses in affected areas and limit the number of lodgers allowed in a household. In the city, the Lord Mayor issued a proclamation that all householders must diligently clean the streets outside their property, which was a householder's responsibility, not a state one (the city employed scavengers and rakers to remove the worst of the mess). Matters just became worse, and Aldermen were instructed to find and punish those failing their duty. As cases in St. Giles began to rise, an attempt was made to quarantine the area and constables were instructed to inspect everyone wishing to travel and contain inside vagrants or suspect persons. People began to be alarmed. Samuel Pepys, who had an important position at the Admiralty, stayed in London and provided a contemporary account of the plague through his diary. On 30 April he wrote: "Great fears of the sickness here in the City it being said that two or three houses are already shut up. God preserve us all!" Another source of information on the time is A Journal of the Plague Year, which was written by Daniel Defoe and published in 1722. He had been only six when the plague struck but made use of his family's recollections (his uncle was a saddler in East London and his father a butcher in Cripplegate), interviews with survivors and sight of such official records as were available. The onset of the disease was recalled two years later by Puritan minister Thomas Vincent: It was in the month of May that the Plague was first taken notice of; our Bill of Mortality did let us know but of three which died of the disease in the whole year before; but in the beginning of May the bill tells us of nine...fear quickly begins to creep upon peoples hearts; great thoughts and discourse there is in Town about the Plague, and they cast in their minds whether they should go if the Plague should increase. Yet when the next weeks Bill signifieth to them the disease from nine to three their minds are something appeased; discourse of that subject cools; fears are hushed, and hopes take place, that the black cloud did but threaten, and give a few drops; but the wind would drive it away. But when in the next Bill the number of the dead by the Plague is mounted from three to fourteen, and in the next to seventeen, and in the next to forty-three, and the disease begins so much to increase, and disperse. Now secure sinners begin to be startled, and those who would have slept at quiet still in their nests, are unwillingly awakened. By July 1665, plague was rampant in the City of London. The rich ran away, including King Charles II of England, his family and his court, who left the city for Salisbury, moving on to Oxford in September when some cases of plague occurred in Salisbury. The aldermen and most of the other city authorities opted to stay at their posts. The Lord Mayor of London, Sir John Lawrence, also decided to stay in the city. Businesses were closed when merchants and professionals fled. Defoe wrote "Nothing was to be seen but wagons and carts, with goods, women, servants, children, coaches filled with people of the better sort, and horsemen attending them, and all hurrying away". As the plague raged throughout the summer, only a small number of clergymen, physicians and apothecaries remained to cope with an increasingly large number of victims. Ellen Cotes, author of London's Dreadful Visitation, expressed the hope that "Neither the Physicians of our Souls or Bodies may hereafter in such great numbers forsake us". The poorer people were also alarmed by the contagion and some left the city, but it was not easy for them to abandon their accommodation and livelihoods for an uncertain future elsewhere. Before exiting through the city gates, they were required to possess a certificate of good health signed by the Lord Mayor and these became increasingly difficult to obtain. As time went by and the numbers of plague victims rose, people living in the villages outside London began to resent this exodus and were no longer prepared to accept townsfolk from London, with or without a certificate. The refugees were turned back, were not allowed to pass through towns and had to travel across country, and were forced to live rough on what they could steal or scavenge from the fields. Many died in wretched circumstances of starvation and dehydration in the hot summer that was to follow. In the last week of July, the London Bill of Mortality showed 3,014 deaths, of which 2,020 had died from the plague. The number of deaths as a result of plague may have been underestimated, as deaths in other years in the same period were much lower, at around 300. As the number of victims affected mounted up, burial grounds became overfull, and pits were dug to accommodate the dead. Drivers of dead-carts travelled the streets calling "Bring out your dead" and carted away piles of bodies. The authorities became concerned that the number of deaths might cause public alarm and ordered that body removal and interment should take place only at night. As time went on, there were too many victims, and too few drivers, to remove the bodies which began to be stacked up against the walls of houses. Daytime collection was resumed and the plague pits became mounds of decomposing corpses. In the parish of Aldgate, a great hole was dug near the churchyard, fifty feet long and twenty feet wide. Digging was continued by labourers at one end while the dead-carts tipped in corpses at the other. When there was no room for further extension it was dug deeper until ground water was reached at twenty feet. When finally covered with earth it housed 1,114 corpses. Plague doctors traversed the streets diagnosing victims, many of them without formal medical training. Several public health efforts were attempted. Physicians were hired by city officials and burial details were carefully organized, but panic spread through the city and, out of the fear of contagion, bodies were hastily buried in overcrowded pits. The means of transmission of the disease were not known but thinking they might be linked to the animals, the City Corporation ordered a cull of dogs and cats. This decision may have affected the length of the epidemic since those animals could have helped keep in check the rat population carrying the fleas which transmitted the disease. Thinking bad air was involved in transmission, the authorities ordered giant bonfires to be burned in the streets and house fires to be kept burning night and day, in the hope that the air would be cleansed. Tobacco was thought to be a prophylactic and it was later said that no London tobacconist had died from the plague during the epidemic. Trade and business had dried up, and the streets were empty of people except for the dead-carts and the dying victims, as witnessed and recorded by Samuel Pepys in his diary: "Lord! How empty the streets are and how melancholy, so many poor sick people in the streets full of sores… in Westminster, there is never a physician and but one apothecary left, all being dead." That people did not starve was down to the foresight of Sir John Lawrence and the Corporation of London who arranged for a commission of one farthing to be paid above the normal price for every quarter of corn landed in the Port of London. Another food source was the villages around London which, denied of their usual sales in the capital, left vegetables in specified market areas, negotiated their sale by shouting, and collected their payment after the money had been left submerged in a bucket of vinegar to "disinfect" the coins. Records state that plague deaths in London and the suburbs crept up over the summer from 2,000 people per week to over 7,000 per week in September. These figures are likely to be a considerable underestimate. Many of the sextons and parish clerks who kept the records themselves died. Quakers refused to co-operate and many of the poor were just dumped into mass graves unrecorded. It is not clear how many people caught the disease and made a recovery because only deaths were recorded and many records were destroyed in the Great Fire of London the following year. In the few districts where intact records remain, plague deaths varied between 30% and over 50% of the total population. Vincent wrote: it was very dismal to behold the red crosses, and read in great letters "LORD, HAVE MERCY UPON US" on the doors, and watchmen standing before them with halberds...people passing by them so gingerly, and with such fearful looks as if they had been lined with enemies in ambush to destroy them...a man at the corner of Artillery-wall, that as I judge, through the dizziness of his head with the disease, which seized upon him there, had dasht his face against the wall; and when I came by, he lay hanging with his bloody face over the rails, and bleeding upon the ground...I went and spoke to him; he could make no answer, but rattled in the throat, and as I was informed, within half an hour died in the place. It would be endless to speak of what we have seen and heard, of some in their frenzy, rising out of their beds, and leaping about their rooms; others crying and roaring at their windows; some coming forth almost naked, and running into the streets...scarcely a day passed over my head for, I think, a month or more together, but I should hear of the death of some one or more that I knew. The first day that they were smitten, the next day some hopes of recovery, and the third day, that they were dead. The outbreak was concentrated in London, but it affected other areas as well. Perhaps the best known example occurred in the village of Eyam in Derbyshire. The plague allegedly arrived with a merchant carrying a parcel of cloth sent from London. The villagers imposed a quarantine on themselves to stop the further spread of the disease. This prevented the disease from moving into surrounding areas, but around 33% of the village's inhabitants died over a period of fourteen months. Other places hit hard included Derby and Norwich. In Bristol strenuous efforts by the City Council seems to have limited the death rate to c.0.6 per cent during an outbreak lasting from April to September 1666. By late autumn, the death toll in London and the suburbs began to slow until, in February 1666, it was considered safe enough for the King and his entourage to come back to the city. With the return of the monarch, others began to return: The gentry returned in their carriages accompanied by carts piled high with their belongings. The judges moved back from Windsor to sit in Westminster Hall; Parliament, which had been prorogued in April 1665, did not reconvene until September 1666. Trade recommenced and businesses and workshops opened up. London was the goal of a new wave of people who flocked to the city in expectation of making their fortunes. Writing at the end of March 1666, Lord Clarendon, the Lord Chancellor, stated "... the streets were as full, the Exchange as much crowded, the people in all places as numerous as they had ever been seen ...". Plague cases continued to occur sporadically at a modest rate until mid-1666. That September, the Great Fire of London destroyed much of the City of London, and some people believed that the fire put an end to the epidemic. It is now thought that the plague had largely subsided before the fire took place. Most of the later cases of plague were found in the suburbs, and it was the City of London that was destroyed by the fire. According to the Bills of Mortality, there were in total 68,596 deaths in London from the plague in 1665. Lord Clarendon estimated that the true number of mortalities was probably twice that figure. 1666 saw further deaths in other cities but on a lesser scale. Dr Thomas Gumble, chaplain to the Duke of Albemarle, both of whom had stayed in London for the whole of the epidemic, estimated that the total death count for the country from plague during 1665 and 1666 was about 200,000. Among the more notable death victims were Samuel Fisher, John Godwin, John Lewger and George Starkey. The Great Plague of 1665/1666 was the last major outbreak of bubonic plague in Great Britain. The last recorded death from plague came in 1679, and it was removed as a specific category in the Bills of Mortality after 1703. It spread to other towns in East Anglia and the southeast of England but fewer than ten per cent of parishes outside London had a higher than average death rate during those years. Urban areas were more affected than rural ones; Norwich, Ipswich, Colchester, Southampton and Winchester were badly affected, while the west of England and areas of the English Midlands escaped altogether. The population of England in 1650 was approximately 5.25 million, which declined to about 4.9 million by 1680, recovering to just over 5 million by 1700. Other diseases, such as smallpox, took a high toll on the population without the contribution by plague. The higher death rate in cities, both generally and specifically from the plague, was made up by continuous immigration, from small towns to larger ones and from the countryside to the towns. There were no contemporary censuses of London's population, but available records suggest that the population returned to its previous level within a couple of years. Burials in 1667 had returned to 1663 levels, Hearth Tax returns had recovered, and John Graunt contemporarily analysed baptism records and concluded they represented a recovered population. Part of this could be accounted for by the return of wealthy households, merchants and manufacturing industries, all of which needed to replace losses among their staff and took steps to bring in necessary people. Colchester had suffered more severe depopulation, but manufacturing records for cloth suggested that production had recovered or even increased by 1669, and the total population had nearly returned to pre-plague levels by 1674. Other towns did less well: Ipswich was affected less than Colchester, but in 1674, its population had dropped by 18%, more than could be accounted for by the plague deaths alone. As a proportion of the population who died, the London death toll was less severe than in some other towns. The total of deaths in London was greater than in any previous outbreak for 100 years, though as a proportion of the population, the epidemics in 1563, 1603 and 1625 were comparable or greater. Perhaps around 2.5% of the English population died. The plague in London largely affected the poor, as the rich were able to leave the city by either retiring to their country estates or residing with kin in other parts of the country. The subsequent Great Fire of London ruined many city merchants and property owners. As a result of these events, London was largely rebuilt and Parliament enacted the Rebuilding of London Act 1666. The street plan of the capital remained relatively unchanged, but some improvements were made: streets were widened, pavements were created, open sewers abolished, wooden buildings and overhanging gables forbidden, and the design and construction of buildings controlled. The use of brick or stone was mandatory and many gracious buildings were constructed. Not only was the capital rejuvenated, but it became a healthier environment in which to live. Londoners had a greater sense of community after they had overcome the great adversities of 1665 and 1666. Rebuilding took over ten years and was supervised by Robert Hooke as Surveyor of London. The architect Sir Christopher Wren was involved in the rebuilding of St Paul's Cathedral and more than fifty London churches. King Charles II did much to foster the rebuilding work. He was a patron of the arts and sciences and founded the Royal Observatory and supported the Royal Society, a scientific group whose early members included Robert Hooke, Robert Boyle and Sir Isaac Newton. In fact, out of the fire and pestilence flowed a renaissance in the arts and sciences in England. Plague pits have been archaeologically excavated during underground construction work. Between 2011 and 2015, 3,500 burials from the 'New Churchyard' or 'Bethlam burial ground' were discovered during the construction of the Crossrail railway at Liverpool Street. Yersinia pestis DNA was found in the teeth of individuals found buried in pits at the site, confirming they had died of bubonic plague. Notes Bibliography
[ { "paragraph_id": 0, "text": "The Great Plague of London, lasting from 1665 to 1666, was the last major epidemic of the bubonic plague to occur in England. It happened within the centuries-long Second Pandemic, a period of intermittent bubonic plague epidemics that originated in Central Asia in 1331 (the first year of the Black Death), and included related diseases such as pneumonic plague and septicemic plague, which lasted until 1750.", "title": "" }, { "paragraph_id": 1, "text": "The Great Plague killed an estimated 100,000 people—almost a quarter of London's population—in 18 months. The plague was caused by the Yersinia pestis bacterium, which is usually transmitted to a human by the bite of a flea or louse.", "title": "" }, { "paragraph_id": 2, "text": "The 1665–66 epidemic was on a much smaller scale than the earlier Black Death pandemic. It became known afterwards as the \"great\" plague mainly because it was the last widespread outbreak of bubonic plague in England during the 400-year Second Pandemic.", "title": "" }, { "paragraph_id": 3, "text": "The plague was endemic in 17th-century London, as it was in other European cities at the time. The disease periodically erupted into massive epidemics. There were 30,000 deaths due to the plague in 1603, 35,000 in 1625, 10,000 in 1636, and smaller numbers in other years.", "title": "London in 1665" }, { "paragraph_id": 4, "text": "In late 1664, a bright comet was seen in the sky, and the people of London became fearful, wondering what evil event it portended. London at that time was a city of about 448 acres surrounded by a city wall that had originally been built to keep out raiding bands, and, in the south, by the River Thames. There were gates in the wall at Ludgate, Newgate, Aldersgate, Cripplegate, Moorgate, Bishopsgate and Aldgate, and the Thames was crossable at London Bridge. In the poorer parts of the city, filled with overcrowded tenements and garrets, hygiene was impossible to maintain. There was no sanitation, and open drains flowed along the centre of winding streets. The cobbles were slippery with animal droppings, rubbish and the slops thrown out of the houses; they were muddy and buzzing with flies in summer, and awash with sewage in winter. The City Corporation employed \"rakers\" to remove the worst of the filth, and it was transported to mounds outside the walls, where it accumulated and continued to decompose. The stench was overwhelming, and people walked around with handkerchiefs or nosegays pressed against their nostrils.", "title": "London in 1665" }, { "paragraph_id": 5, "text": "Some of the city's necessities, such as coal, arrived by barge, but most came by road. Carts, carriages, horses and pedestrians were crowded together, and the gateways in the wall formed bottlenecks through which it was difficult to progress. The nineteen-arch London Bridge was even more congested. Those who were better-off used hackney carriages and sedan chairs to get to their destinations without getting filthy. The poor walked, and might be drenched by water tossed up by wheeled vehicles, slops thrown into the street, or water pouring off overhanging roofs. Another hazard was the choking black smoke belching forth from soap factories, breweries, iron smelters and about 15,000 households that were burning coal to heat their homes.", "title": "London in 1665" }, { "paragraph_id": 6, "text": "Outside the city walls, shanty towns with wooden shacks and no sanitation had sprung up, providing homes for the craftsmen and tradespeople who had flocked to the already overcrowded city. The government had tried to limit the development of these \"suburbs\", but had failed: Over a quarter of a million people lived in them. When Royalists had fled the country during the Commonwealth, they had left many fine town houses vacant, and some immigrants to London had crowded into them, converting them into tenements that housed different families in every room. These properties were soon vandalised and became rat-infested.", "title": "London in 1665" }, { "paragraph_id": 7, "text": "The City of London proper was administered by the Lord Mayor, the Aldermen and the common councillors, but some parts of the greater metropolitan area were not legally part of the city. Some of these areas, both inside the City walls and outside its boundaries, had long been organised into districts of various sizes, called \"liberties\", that had historically been granted rights to self-government. (Many had originally been associated with the religious institutions that were abolished in the Dissolution of the Monasteries, whereupon their historic rights and property had been transferred to secular owners.)", "title": "London in 1665" }, { "paragraph_id": 8, "text": "By 1665, the walled City was surrounded by a ring of liberties which had come under its authority, and these had come to be referred to collectively as 'the City and Liberties'. However, this area was surrounded by additional suburbs with other independent administrations. For example, Westminster was an independent town with its own liberties, joined to London by urban development, and the Tower of London was an independent liberty. Areas that were not part of any of these various independent administrations came under the authority of the county of Middlesex if they were north of the river, and under the authority of Surrey if they were south of the river.", "title": "London in 1665" }, { "paragraph_id": 9, "text": "At that time, bubonic plague was a much feared disease, but its cause was not understood. Many mistakenly blamed emanations from the earth, \"pestilential effluvia\", unusual weather, sickness in livestock, abnormal behaviour of animals or an increase in the numbers of moles, frogs, mice or flies. It was not until 1894 that its causal agent, the bacterium Yersinia pestis, was identified by Alexandre Yersin, and its transmission by rat fleas became known. Although the Great Plague in London was long assumed to be bubonic plague, caused by Yersinia pestis, this was only confirmed (by DNA analysis) in 2016. It is now believed that human body lice also played a key role in causing infections, perhaps more so than rats.", "title": "London in 1665" }, { "paragraph_id": 10, "text": "In order to judge the severity of an epidemic, it is first necessary to know how big the population was in which it occurred. There was no official census of the population to provide this figure, and the best contemporary count comes from the work of John Graunt (1620–1674), who was one of the earliest Fellows of the Royal Society and one of the first demographers, bringing a scientific approach to the collection of statistics. In 1662, he estimated that 384,000 people lived in the City of London, the Liberties, Westminster and the out-parishes, based on figures in the Bills of Mortality published each week in the capital. These different districts with different administrations constituted the officially recognized extent of London as a whole. In 1665, he revised his estimate to \"not above 460,000\". Other contemporaries put the figure higher (the French Ambassador, for example, suggested 600,000), but with no mathematical basis to support their estimates. The next largest city in the kingdom was Norwich, with a population of 30,000.", "title": "The recording of deaths" }, { "paragraph_id": 11, "text": "There was no duty to report a death to anyone in authority. Instead, each parish appointed two or more \"searchers of the dead\", whose duty was to inspect a corpse and determine the cause of death. A searcher was entitled to charge a small fee from relatives for each death they reported, and so habitually the parish would appoint someone to the post who would otherwise be destitute and would be receiving support from the parish poor rate. Typically, this meant searchers would be old women who were illiterate, might know little about identifying diseases and who would be open to dishonesty. Searchers would typically learn about a death either from the local sexton who had been asked to dig a grave or from the tolling of a church bell. Anyone who did not report a death to their local church, such as Quakers, Anabaptists, other non-Anglican Christians or Jews, frequently did not get included in the official records. Searchers during times of plague were required to live apart from the community, avoid other people and carry a white stick to warn of their occupation when outdoors, and stay indoors except when performing their duties, to avoid spreading the diseases. Searchers reported to the Parish Clerk, who made a return each week to the Company of Parish Clerks in Brode Lane. Figures were then passed to the Lord Mayor and then to the Minister of State once plague became a matter of national concern. The reported figures were used to compile the Bills of Mortality, which listed total deaths in each parish and whether by the plague. The system of Searchers to report the cause of death continued until 1836.", "title": "The recording of deaths" }, { "paragraph_id": 12, "text": "Graunt recorded the incompetence of the Searchers at identifying true causes of death, remarking on the frequent recording of 'consumption' rather than other diseases which were recognized then by physicians. He suggested a cup of ale and a doubling of their fee to two groats rather than one was sufficient for Searchers to change the cause of death to one more convenient for the householders. No one wished to be known as having had a death by plague in their household, and Parish Clerks, too, connived in covering up cases of plague in their official returns. Analysis of the Bills of Mortality during the months plague took hold shows a rise in deaths other than by plague well above the average death rate, a tell-tale sign of misrepresentation of the true cause of death. As plague spread, a system of quarantine was introduced, whereby any house where someone had died from plague would be locked up and no one allowed to enter or leave for 40 days. This frequently led to the deaths of the other inhabitants, by neglect if not from the plague, and provided ample incentive not to report the disease. The official returns record 68,596 cases of plague, but a reasonable estimate suggests this figure is 30,000 short of the true total. A plague house was marked with a red cross on the door with the words \"Lord have mercy upon us\", and a watchman stood guard outside.", "title": "The recording of deaths" }, { "paragraph_id": 13, "text": "Reports of plague around Europe began to reach England in the 1660s, causing the Privy Council to consider what steps might be taken to prevent it crossing to England. Quarantining (isolation) of ships had been used during previous outbreaks and was again introduced for ships coming to London in November 1663, following outbreaks in Amsterdam and Hamburg. Two naval ships were assigned to intercept any vessels entering the Thames estuary. Ships from infected ports were required to moor at Hole Haven on Canvey Island for a trentine – period of 30 days – before being allowed to travel up-river. Ships from ports free of plague or completing their isolation period were given a certificate of health and allowed to travel on. A second inspection line was established between the forts on opposite banks of the Thames at Tilbury and Gravesend with instructions to pass only ships with a certificate.", "title": "Preventive measures" }, { "paragraph_id": 14, "text": "The isolation period was increased to forty days – a quarantine – in May 1664 as the continental plague worsened, and the areas subject to quarantine changed with the news of the spread of plague to include all of Holland, Zeeland and Friesland (all regions of the Dutch Republic); restrictions on Hamburg were removed in November. Quarantine measures against ships coming from the Dutch Republic were put in place in 29 other ports from May, starting with Great Yarmouth. The Dutch ambassador objected at the constraint of trade with his country, but England responded that it had been one of the last countries introducing such restrictions. Regulations were enforced quite strictly, so that people or houses where voyagers had come ashore without serving their quarantine were also subjected to 40 days of quarantine.", "title": "Preventive measures" }, { "paragraph_id": 15, "text": "Plague was one of the hazards of life in Britain from its dramatic appearance in 1348 with the Black Death. The Bills of Mortality began to be published regularly in 1603, in which year 33,347 deaths were recorded from plague. Between then and 1665, only four years had no recorded cases. In 1563, a thousand people were reportedly dying in London each week. In 1593, there were 15,003 deaths, 1625 saw 41,313 dead, between 1640 and 1646 came 11,000 deaths, culminating in 3,597 for 1647. The 1625 outbreak was recorded at the time as the 'Great Plague', until deaths from the plague of 1665 surpassed it. These official figures are likely to under-report actual numbers.", "title": "Outbreak" }, { "paragraph_id": 16, "text": "Plague was sufficiently uncommon that medical practitioners might have had no personal experience of seeing the disease; medical training varied from those who had attended the college of physicians, to apothecaries who also acted as doctors, to charlatans. Other diseases abounded, such as an outbreak of smallpox the year before, and these uncertainties all added to difficulties identifying the true start of the epidemic. Contemporary accounts suggest cases of plague occurred through the winter of 1664–65, some of which were fatal but a number of which did not display the virulence of the later epidemic. The winter was cold, the ground frozen from December to March, river traffic on the Thames twice blocked by ice, and it may be that the cold weather held back its spread.", "title": "Outbreak" }, { "paragraph_id": 17, "text": "This outbreak of bubonic plague in England is thought to have spread from the Netherlands, where the disease had been occurring intermittently since 1599. It is unclear exactly where the disease first struck but the initial contagion may have arrived with Dutch trading ships carrying bales of cotton from Amsterdam, which was ravaged by the disease in 1663–64, with a mortality given of 50,000. The first areas to be struck are believed to be the dock areas just outside London, and the parish of St Giles. In both of these localities, poor workers were crowded into ill-kept structures. Two suspicious deaths were recorded in St Giles parish in 1664 and another in February 1665. These did not appear as plague deaths on the Bills of Mortality, so no control measures were taken by the authorities, but the total number of people dying in London during the first four months of 1665 showed a marked increase. By the end of April, only four plague deaths had been recorded, two in the parish of St. Giles, but total deaths per week had risen from around 290 to 398.", "title": "Outbreak" }, { "paragraph_id": 18, "text": "There had been three official cases in April, a level of plague which in earlier years had not induced any official response, but the Privy Council now acted to introduce household quarantine. Justices of the Peace in Middlesex were instructed to investigate any suspected cases and to shut up the house if it was confirmed. Shortly after, a similar order was issued by the King's Bench to the City and Liberties. A riot broke out in St. Giles when the first house was sealed up; the crowd broke down the door and released the inhabitants. Rioters caught were punished severely. Instructions were given to build pest-houses, which were essentially isolation hospitals built away from other people where the sick could be cared for (or stay until they died). This official activity suggests that despite the few recorded cases, the government was already aware that this was a serious outbreak of plague.", "title": "Outbreak" }, { "paragraph_id": 19, "text": "With the arrival of warmer weather, the disease began to take a firmer hold. In the week 2–9 May, there were three recorded deaths in the parish of St Giles, four in neighbouring St Clement Danes and one each in St Andrew Holborn and St Mary Woolchurch Haw. Only the last was actually inside the city walls. A Privy Council committee was formed to investigate methods to best prevent the spread of plague, and measures were introduced to close some of the ale houses in affected areas and limit the number of lodgers allowed in a household. In the city, the Lord Mayor issued a proclamation that all householders must diligently clean the streets outside their property, which was a householder's responsibility, not a state one (the city employed scavengers and rakers to remove the worst of the mess). Matters just became worse, and Aldermen were instructed to find and punish those failing their duty. As cases in St. Giles began to rise, an attempt was made to quarantine the area and constables were instructed to inspect everyone wishing to travel and contain inside vagrants or suspect persons.", "title": "Outbreak" }, { "paragraph_id": 20, "text": "People began to be alarmed. Samuel Pepys, who had an important position at the Admiralty, stayed in London and provided a contemporary account of the plague through his diary. On 30 April he wrote: \"Great fears of the sickness here in the City it being said that two or three houses are already shut up. God preserve us all!\" Another source of information on the time is A Journal of the Plague Year, which was written by Daniel Defoe and published in 1722. He had been only six when the plague struck but made use of his family's recollections (his uncle was a saddler in East London and his father a butcher in Cripplegate), interviews with survivors and sight of such official records as were available.", "title": "Outbreak" }, { "paragraph_id": 21, "text": "The onset of the disease was recalled two years later by Puritan minister Thomas Vincent:", "title": "Outbreak" }, { "paragraph_id": 22, "text": "It was in the month of May that the Plague was first taken notice of; our Bill of Mortality did let us know but of three which died of the disease in the whole year before; but in the beginning of May the bill tells us of nine...fear quickly begins to creep upon peoples hearts; great thoughts and discourse there is in Town about the Plague, and they cast in their minds whether they should go if the Plague should increase. Yet when the next weeks Bill signifieth to them the disease from nine to three their minds are something appeased; discourse of that subject cools; fears are hushed, and hopes take place, that the black cloud did but threaten, and give a few drops; but the wind would drive it away. But when in the next Bill the number of the dead by the Plague is mounted from three to fourteen, and in the next to seventeen, and in the next to forty-three, and the disease begins so much to increase, and disperse. Now secure sinners begin to be startled, and those who would have slept at quiet still in their nests, are unwillingly awakened.", "title": "Outbreak" }, { "paragraph_id": 23, "text": "By July 1665, plague was rampant in the City of London. The rich ran away, including King Charles II of England, his family and his court, who left the city for Salisbury, moving on to Oxford in September when some cases of plague occurred in Salisbury. The aldermen and most of the other city authorities opted to stay at their posts. The Lord Mayor of London, Sir John Lawrence, also decided to stay in the city. Businesses were closed when merchants and professionals fled. Defoe wrote \"Nothing was to be seen but wagons and carts, with goods, women, servants, children, coaches filled with people of the better sort, and horsemen attending them, and all hurrying away\". As the plague raged throughout the summer, only a small number of clergymen, physicians and apothecaries remained to cope with an increasingly large number of victims. Ellen Cotes, author of London's Dreadful Visitation, expressed the hope that \"Neither the Physicians of our Souls or Bodies may hereafter in such great numbers forsake us\".", "title": "Outbreak" }, { "paragraph_id": 24, "text": "The poorer people were also alarmed by the contagion and some left the city, but it was not easy for them to abandon their accommodation and livelihoods for an uncertain future elsewhere. Before exiting through the city gates, they were required to possess a certificate of good health signed by the Lord Mayor and these became increasingly difficult to obtain. As time went by and the numbers of plague victims rose, people living in the villages outside London began to resent this exodus and were no longer prepared to accept townsfolk from London, with or without a certificate. The refugees were turned back, were not allowed to pass through towns and had to travel across country, and were forced to live rough on what they could steal or scavenge from the fields. Many died in wretched circumstances of starvation and dehydration in the hot summer that was to follow.", "title": "Outbreak" }, { "paragraph_id": 25, "text": "In the last week of July, the London Bill of Mortality showed 3,014 deaths, of which 2,020 had died from the plague. The number of deaths as a result of plague may have been underestimated, as deaths in other years in the same period were much lower, at around 300. As the number of victims affected mounted up, burial grounds became overfull, and pits were dug to accommodate the dead. Drivers of dead-carts travelled the streets calling \"Bring out your dead\" and carted away piles of bodies. The authorities became concerned that the number of deaths might cause public alarm and ordered that body removal and interment should take place only at night. As time went on, there were too many victims, and too few drivers, to remove the bodies which began to be stacked up against the walls of houses. Daytime collection was resumed and the plague pits became mounds of decomposing corpses. In the parish of Aldgate, a great hole was dug near the churchyard, fifty feet long and twenty feet wide. Digging was continued by labourers at one end while the dead-carts tipped in corpses at the other. When there was no room for further extension it was dug deeper until ground water was reached at twenty feet. When finally covered with earth it housed 1,114 corpses.", "title": "Outbreak" }, { "paragraph_id": 26, "text": "Plague doctors traversed the streets diagnosing victims, many of them without formal medical training. Several public health efforts were attempted. Physicians were hired by city officials and burial details were carefully organized, but panic spread through the city and, out of the fear of contagion, bodies were hastily buried in overcrowded pits. The means of transmission of the disease were not known but thinking they might be linked to the animals, the City Corporation ordered a cull of dogs and cats. This decision may have affected the length of the epidemic since those animals could have helped keep in check the rat population carrying the fleas which transmitted the disease. Thinking bad air was involved in transmission, the authorities ordered giant bonfires to be burned in the streets and house fires to be kept burning night and day, in the hope that the air would be cleansed. Tobacco was thought to be a prophylactic and it was later said that no London tobacconist had died from the plague during the epidemic.", "title": "Outbreak" }, { "paragraph_id": 27, "text": "Trade and business had dried up, and the streets were empty of people except for the dead-carts and the dying victims, as witnessed and recorded by Samuel Pepys in his diary: \"Lord! How empty the streets are and how melancholy, so many poor sick people in the streets full of sores… in Westminster, there is never a physician and but one apothecary left, all being dead.\" That people did not starve was down to the foresight of Sir John Lawrence and the Corporation of London who arranged for a commission of one farthing to be paid above the normal price for every quarter of corn landed in the Port of London. Another food source was the villages around London which, denied of their usual sales in the capital, left vegetables in specified market areas, negotiated their sale by shouting, and collected their payment after the money had been left submerged in a bucket of vinegar to \"disinfect\" the coins.", "title": "Outbreak" }, { "paragraph_id": 28, "text": "Records state that plague deaths in London and the suburbs crept up over the summer from 2,000 people per week to over 7,000 per week in September. These figures are likely to be a considerable underestimate. Many of the sextons and parish clerks who kept the records themselves died. Quakers refused to co-operate and many of the poor were just dumped into mass graves unrecorded. It is not clear how many people caught the disease and made a recovery because only deaths were recorded and many records were destroyed in the Great Fire of London the following year. In the few districts where intact records remain, plague deaths varied between 30% and over 50% of the total population.", "title": "Outbreak" }, { "paragraph_id": 29, "text": "Vincent wrote:", "title": "Outbreak" }, { "paragraph_id": 30, "text": "it was very dismal to behold the red crosses, and read in great letters \"LORD, HAVE MERCY UPON US\" on the doors, and watchmen standing before them with halberds...people passing by them so gingerly, and with such fearful looks as if they had been lined with enemies in ambush to destroy them...a man at the corner of Artillery-wall, that as I judge, through the dizziness of his head with the disease, which seized upon him there, had dasht his face against the wall; and when I came by, he lay hanging with his bloody face over the rails, and bleeding upon the ground...I went and spoke to him; he could make no answer, but rattled in the throat, and as I was informed, within half an hour died in the place. It would be endless to speak of what we have seen and heard, of some in their frenzy, rising out of their beds, and leaping about their rooms; others crying and roaring at their windows; some coming forth almost naked, and running into the streets...scarcely a day passed over my head for, I think, a month or more together, but I should hear of the death of some one or more that I knew. The first day that they were smitten, the next day some hopes of recovery, and the third day, that they were dead.", "title": "Outbreak" }, { "paragraph_id": 31, "text": "The outbreak was concentrated in London, but it affected other areas as well. Perhaps the best known example occurred in the village of Eyam in Derbyshire. The plague allegedly arrived with a merchant carrying a parcel of cloth sent from London. The villagers imposed a quarantine on themselves to stop the further spread of the disease. This prevented the disease from moving into surrounding areas, but around 33% of the village's inhabitants died over a period of fourteen months. Other places hit hard included Derby and Norwich. In Bristol strenuous efforts by the City Council seems to have limited the death rate to c.0.6 per cent during an outbreak lasting from April to September 1666.", "title": "Outbreak" }, { "paragraph_id": 32, "text": "By late autumn, the death toll in London and the suburbs began to slow until, in February 1666, it was considered safe enough for the King and his entourage to come back to the city. With the return of the monarch, others began to return: The gentry returned in their carriages accompanied by carts piled high with their belongings. The judges moved back from Windsor to sit in Westminster Hall; Parliament, which had been prorogued in April 1665, did not reconvene until September 1666. Trade recommenced and businesses and workshops opened up. London was the goal of a new wave of people who flocked to the city in expectation of making their fortunes. Writing at the end of March 1666, Lord Clarendon, the Lord Chancellor, stated \"... the streets were as full, the Exchange as much crowded, the people in all places as numerous as they had ever been seen ...\".", "title": "Aftermath" }, { "paragraph_id": 33, "text": "Plague cases continued to occur sporadically at a modest rate until mid-1666. That September, the Great Fire of London destroyed much of the City of London, and some people believed that the fire put an end to the epidemic. It is now thought that the plague had largely subsided before the fire took place. Most of the later cases of plague were found in the suburbs, and it was the City of London that was destroyed by the fire.", "title": "Aftermath" }, { "paragraph_id": 34, "text": "According to the Bills of Mortality, there were in total 68,596 deaths in London from the plague in 1665. Lord Clarendon estimated that the true number of mortalities was probably twice that figure. 1666 saw further deaths in other cities but on a lesser scale. Dr Thomas Gumble, chaplain to the Duke of Albemarle, both of whom had stayed in London for the whole of the epidemic, estimated that the total death count for the country from plague during 1665 and 1666 was about 200,000. Among the more notable death victims were Samuel Fisher, John Godwin, John Lewger and George Starkey.", "title": "Aftermath" }, { "paragraph_id": 35, "text": "The Great Plague of 1665/1666 was the last major outbreak of bubonic plague in Great Britain. The last recorded death from plague came in 1679, and it was removed as a specific category in the Bills of Mortality after 1703. It spread to other towns in East Anglia and the southeast of England but fewer than ten per cent of parishes outside London had a higher than average death rate during those years. Urban areas were more affected than rural ones; Norwich, Ipswich, Colchester, Southampton and Winchester were badly affected, while the west of England and areas of the English Midlands escaped altogether.", "title": "Aftermath" }, { "paragraph_id": 36, "text": "The population of England in 1650 was approximately 5.25 million, which declined to about 4.9 million by 1680, recovering to just over 5 million by 1700. Other diseases, such as smallpox, took a high toll on the population without the contribution by plague. The higher death rate in cities, both generally and specifically from the plague, was made up by continuous immigration, from small towns to larger ones and from the countryside to the towns.", "title": "Aftermath" }, { "paragraph_id": 37, "text": "There were no contemporary censuses of London's population, but available records suggest that the population returned to its previous level within a couple of years. Burials in 1667 had returned to 1663 levels, Hearth Tax returns had recovered, and John Graunt contemporarily analysed baptism records and concluded they represented a recovered population. Part of this could be accounted for by the return of wealthy households, merchants and manufacturing industries, all of which needed to replace losses among their staff and took steps to bring in necessary people. Colchester had suffered more severe depopulation, but manufacturing records for cloth suggested that production had recovered or even increased by 1669, and the total population had nearly returned to pre-plague levels by 1674. Other towns did less well: Ipswich was affected less than Colchester, but in 1674, its population had dropped by 18%, more than could be accounted for by the plague deaths alone.", "title": "Aftermath" }, { "paragraph_id": 38, "text": "As a proportion of the population who died, the London death toll was less severe than in some other towns. The total of deaths in London was greater than in any previous outbreak for 100 years, though as a proportion of the population, the epidemics in 1563, 1603 and 1625 were comparable or greater. Perhaps around 2.5% of the English population died.", "title": "Aftermath" }, { "paragraph_id": 39, "text": "The plague in London largely affected the poor, as the rich were able to leave the city by either retiring to their country estates or residing with kin in other parts of the country. The subsequent Great Fire of London ruined many city merchants and property owners. As a result of these events, London was largely rebuilt and Parliament enacted the Rebuilding of London Act 1666. The street plan of the capital remained relatively unchanged, but some improvements were made: streets were widened, pavements were created, open sewers abolished, wooden buildings and overhanging gables forbidden, and the design and construction of buildings controlled. The use of brick or stone was mandatory and many gracious buildings were constructed. Not only was the capital rejuvenated, but it became a healthier environment in which to live. Londoners had a greater sense of community after they had overcome the great adversities of 1665 and 1666.", "title": "Impact" }, { "paragraph_id": 40, "text": "Rebuilding took over ten years and was supervised by Robert Hooke as Surveyor of London. The architect Sir Christopher Wren was involved in the rebuilding of St Paul's Cathedral and more than fifty London churches. King Charles II did much to foster the rebuilding work. He was a patron of the arts and sciences and founded the Royal Observatory and supported the Royal Society, a scientific group whose early members included Robert Hooke, Robert Boyle and Sir Isaac Newton. In fact, out of the fire and pestilence flowed a renaissance in the arts and sciences in England.", "title": "Impact" }, { "paragraph_id": 41, "text": "Plague pits have been archaeologically excavated during underground construction work. Between 2011 and 2015, 3,500 burials from the 'New Churchyard' or 'Bethlam burial ground' were discovered during the construction of the Crossrail railway at Liverpool Street. Yersinia pestis DNA was found in the teeth of individuals found buried in pits at the site, confirming they had died of bubonic plague.", "title": "Impact" }, { "paragraph_id": 42, "text": "Notes", "title": "References" }, { "paragraph_id": 43, "text": "Bibliography", "title": "References" } ]
The Great Plague of London, lasting from 1665 to 1666, was the last major epidemic of the bubonic plague to occur in England. It happened within the centuries-long Second Pandemic, a period of intermittent bubonic plague epidemics that originated in Central Asia in 1331, and included related diseases such as pneumonic plague and septicemic plague, which lasted until 1750. The Great Plague killed an estimated 100,000 people—almost a quarter of London's population—in 18 months. The plague was caused by the Yersinia pestis bacterium, which is usually transmitted to a human by the bite of a flea or louse. The 1665–66 epidemic was on a much smaller scale than the earlier Black Death pandemic. It became known afterwards as the "great" plague mainly because it was the last widespread outbreak of bubonic plague in England during the 400-year Second Pandemic.
2001-07-29T19:03:55Z
2023-12-18T12:11:34Z
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https://en.wikipedia.org/wiki/Great_Plague_of_London
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Graphical user interface
A graphical user interface, or GUI (/ˈɡuːi/ GOO-ee), is a form of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation. In many applications, GUIs are used instead of text-based UIs, which are based on typed command labels or text navigation. GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs), which require commands to be typed on a computer keyboard. The actions in a GUI are usually performed through direct manipulation of the graphical elements. Beyond computers, GUIs are used in many handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and industrial controls. The term GUI tends not to be applied to other lower-display resolution types of interfaces, such as video games (where head-up displays (HUDs) are preferred), or not including flat screens like volumetric displays because the term is restricted to the scope of 2D display screens able to describe generic information, in the tradition of the computer science research at the Xerox Palo Alto Research Center. Designing the visual composition and temporal behavior of a GUI is an important part of software application programming in the area of human–computer interaction. Its goal is to enhance the efficiency and ease of use for the underlying logical design of a stored program, a design discipline named usability. Methods of user-centered design are used to ensure that the visual language introduced in the design is well-tailored to the tasks. The visible graphical interface features of an application are sometimes referred to as chrome or GUI. Typically, users interact with information by manipulating visual widgets that allow for interactions appropriate to the kind of data they hold. The widgets of a well-designed interface are selected to support the actions necessary to achieve the goals of users. A model–view–controller allows flexible structures in which the interface is independent of and indirectly linked to application functions, so the GUI can be customized easily. This allows users to select or design a different skin at will, and eases the designer's work to change the interface as user needs evolve. Good GUI design relates to users more, and to system architecture less. Large widgets, such as windows, usually provide a frame or container for the main presentation content such as a web page, email message, or drawing. Smaller ones usually act as a user-input tool. A GUI may be designed for the requirements of a vertical market as application-specific GUIs. Examples include automated teller machines (ATM), point of sale (POS) touchscreens at restaurants, self-service checkouts used in a retail store, airline self-ticket and check-in, information kiosks in a public space, like a train station or a museum, and monitors or control screens in an embedded industrial application which employ a real-time operating system (RTOS). Cell phones and handheld game systems also employ application specific touchscreen GUIs. Newer automobiles use GUIs in their navigation systems and multimedia centers, or navigation multimedia center combinations. A GUI uses a combination of technologies and devices to provide a platform that users can interact with, for the tasks of gathering and producing information. A series of elements conforming a visual language have evolved to represent information stored in computers. This makes it easier for people with few computer skills to work with and use computer software. The most common combination of such elements in GUIs is the windows, icons, text fields, canvases, menus, pointer (WIMP) paradigm, especially in personal computers. The WIMP style of interaction uses a virtual input device to represent the position of a pointing device's interface, most often a mouse, and presents information organized in windows and represented with icons. Available commands are compiled together in menus, and actions are performed making gestures with the pointing device. A window manager facilitates the interactions between windows, applications, and the windowing system. The windowing system handles hardware devices such as pointing devices, graphics hardware, and positioning of the pointer. In personal computers, all these elements are modeled through a desktop metaphor to produce a simulation called a desktop environment in which the display represents a desktop, on which documents and folders of documents can be placed. Window managers and other software combine to simulate the desktop environment with varying degrees of realism. Entries may appear in a list to make space for text and details, or in a grid for compactness and larger icons with little space underneath for text. Variations inbetween exist, such as a list with multiple columns of items and a grid of items with rows of text extending sideways from the icon. Multi-row and multi-column layouts commonly found on the web are "shelf" and "waterfall". The former is found on image search engines, where images appear with a fixed height but variable length, and is typically implemented with the CSS property and parameter display: inline-block;. A waterfall layout found on Imgur and Tweetdeck with fixed width but variable height per item is usually implemented by specifying column-width:. Smaller app mobile devices such as personal digital assistants (PDAs) and smartphones typically use the WIMP elements with different unifying metaphors, due to constraints in space and available input devices. Applications for which WIMP is not well suited may use newer interaction techniques, collectively termed post-WIMP UIs. As of 2011, some touchscreen-based operating systems such as Apple's iOS (iPhone) and Android use the class of GUIs named post-WIMP. These support styles of interaction using more than one finger in contact with a display, which allows actions such as pinching and rotating, which are unsupported by one pointer and mouse. Human interface devices, for the efficient interaction with a GUI include a computer keyboard, especially used together with keyboard shortcuts, pointing devices for the cursor (or rather pointer) control: mouse, pointing stick, touchpad, trackball, joystick, virtual keyboards, and head-up displays (translucent information devices at the eye level). There are also actions performed by programs that affect the GUI. For example, there are components like inotify or D-Bus to facilitate communication between computer programs. Ivan Sutherland developed Sketchpad in 1963, widely held as the first graphical computer-aided design program. It used a light pen to create and manipulate objects in engineering drawings in realtime with coordinated graphics. In the late 1960s, researchers at the Stanford Research Institute, led by Douglas Engelbart, developed the On-Line System (NLS), which used text-based hyperlinks manipulated with a then-new device: the mouse. (A 1968 demonstration of NLS became known as "The Mother of All Demos.") In the 1970s, Engelbart's ideas were further refined and extended to graphics by researchers at Xerox PARC and specifically Alan Kay, who went beyond text-based hyperlinks and used a GUI as the main interface for the Smalltalk programming language, which ran on the Xerox Alto computer, released in 1973. Most modern general-purpose GUIs are derived from this system. The Xerox PARC GUI consisted of graphical elements such as windows, menus, radio buttons, and check boxes. The concept of icons was later introduced by David Canfield Smith, who had written a thesis on the subject under the guidance of Kay. The PARC GUI employs a pointing device along with a keyboard. These aspects can be emphasized by using the alternative term and acronym for windows, icons, menus, pointing device (WIMP). This effort culminated in the 1973 Xerox Alto, the first computer with a GUI, though the system never reached commercial production. The first commercially available computer with a GUI was the 1979 PERQ workstation, manufactured by Three Rivers Computer Corporation. Its design was heavily influenced by the work at Xerox PARC. In 1981, Xerox eventually commercialized the ideas from the Alto in the form of a new and enhanced system – the Xerox 8010 Information System – more commonly known as the Xerox Star. These early systems spurred many other GUI efforts, including Lisp machines by Symbolics and other manufacturers, the Apple Lisa (which presented the concept of menu bar and window controls) in 1983, the Apple Macintosh 128K in 1984, and the Atari ST with Digital Research's GEM, and Commodore Amiga in 1985. Visi On was released in 1983 for the IBM PC compatible computers, but was never popular due to its high hardware demands. Nevertheless, it was a crucial influence on the contemporary development of Microsoft Windows. Apple, Digital Research, IBM and Microsoft used many of Xerox's ideas to develop products, and IBM's Common User Access specifications formed the basis of the GUIs used in Microsoft Windows, IBM OS/2 Presentation Manager, and the Unix Motif toolkit and window manager. These ideas evolved to create the interface found in current versions of Microsoft Windows, and in various desktop environments for Unix-like operating systems, such as macOS and Linux. Thus most current GUIs have largely common idioms. GUIs were a hot topic in the early 1980s. The Apple Lisa was released in 1983, and various windowing systems existed for DOS operating systems (including PC GEM and PC/GEOS). Individual applications for many platforms presented their own GUI variants. Despite the GUIs advantages, many reviewers questioned the value of the entire concept, citing hardware limits, and problems in finding compatible software. In 1984, Apple released a television commercial which introduced the Apple Macintosh during the telecast of Super Bowl XVIII by CBS, with allusions to George Orwell's noted novel Nineteen Eighty-Four. The goal of the commercial was to make people think about computers, identifying the user-friendly interface as a personal computer which departed from prior business-oriented systems, and becoming a signature representation of Apple products. Windows 95, accompanied by an extensive marketing campaign, was a major success in the marketplace at launch and shortly became the most popular desktop operating system. In 2007, with the iPhone and later in 2010 with the introduction of the iPad, Apple popularized the post-WIMP style of interaction for multi-touch screens, and those devices were considered to be milestones in the development of mobile devices. The GUIs familiar to most people as of the mid-late 2010s are Microsoft Windows, macOS, and the X Window System interfaces for desktop and laptop computers, and Android, Apple's iOS, Symbian, BlackBerry OS, Windows Phone/Windows 10 Mobile, Tizen, WebOS, and Firefox OS for handheld (smartphone) devices. Since the commands available in command line interfaces can be many, complex operations can be performed using a short sequence of words and symbols. Custom functions may be used to facilitate access to frequent actions. Command-line interfaces are more lightweight, as they only recall information necessary for a task; for example, no preview thumbnails or graphical rendering of web pages. This allows greater efficiency and productivity once many commands are learned. But reaching this level takes some time because the command words may not be easily discoverable or mnemonic. Also, using the command line can become slow and error-prone when users must enter long commands comprising many parameters or several different filenames at once. However, windows, icons, menus, pointer (WIMP) interfaces present users with many widgets that represent and can trigger some of the system's available commands. GUIs can be made quite hard when dialogs are buried deep in a system or moved about to different places during redesigns. Also, icons and dialog boxes are usually harder for users to script. WIMPs extensively use modes, as the meaning of all keys and clicks on specific positions on the screen are redefined all the time. Command-line interfaces use modes only in limited forms, such as for current directory and environment variables. Most modern operating systems provide both a GUI and some level of a CLI, although the GUIs usually receive more attention. GUI wrappers find a way around the command-line interface versions (CLI) of (typically) Linux and Unix-like software applications and their text-based UIs or typed command labels. While command-line or text-based applications allow users to run a program non-interactively, GUI wrappers atop them avoid the steep learning curve of the command-line, which requires commands to be typed on the keyboard. By starting a GUI wrapper, users can intuitively interact with, start, stop, and change its working parameters, through graphical icons and visual indicators of a desktop environment, for example. Applications may also provide both interfaces, and when they do the GUI is usually a WIMP wrapper around the command-line version. This is especially common with applications designed for Unix-like operating systems. The latter used to be implemented first because it allowed the developers to focus exclusively on their product's functionality without bothering about interface details such as designing icons and placing buttons. Designing programs this way also allows users to run the program in a shell script. Many environments and games use the methods of 3D graphics to project 3D GUI objects onto the screen. The use of 3D graphics has become increasingly common in mainstream operating systems (ex. Windows Aero, and Aqua (MacOS)) to create attractive interfaces, termed eye candy (which includes, for example, the use of drop shadows underneath windows and the cursor), or for functional purposes only possible using three dimensions. For example, user switching is represented by rotating a cube with faces representing each user's workspace, and window management is represented via a Rolodex-style flipping mechanism in Windows Vista (see Windows Flip 3D). In both cases, the operating system transforms windows on-the-fly while continuing to update the content of those windows. The GUI is usually WIMP-based, although occasionally other metaphors surface, such as those used in Microsoft Bob, 3dwm, File System Navigator, File System Visualizer, 3D Mailbox, and GopherVR. Zooming (ZUI) is a related technology that promises to deliver the representation benefits of 3D environments without their usability drawbacks of orientation problems and hidden objects. In 2006, Hillcrest Labs introduced the first ZUI for television. Other innovations include the menus on the PlayStation 2, the menus on the Xbox, Sun's Project Looking Glass, Metisse, which was similar to Project Looking Glass, BumpTop, where users can manipulate documents and windows with realistic movement and physics as if they were physical documents, Croquet OS, which is built for collaboration, and compositing window managers such as Enlightenment and Compiz. Augmented reality and virtual reality also make use of 3D GUI elements. 3D GUIs have appeared in science fiction literature and films, even before certain technologies were feasible or in common use.
[ { "paragraph_id": 0, "text": "A graphical user interface, or GUI (/ˈɡuːi/ GOO-ee), is a form of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation. In many applications, GUIs are used instead of text-based UIs, which are based on typed command labels or text navigation. GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs), which require commands to be typed on a computer keyboard.", "title": "" }, { "paragraph_id": 1, "text": "The actions in a GUI are usually performed through direct manipulation of the graphical elements. Beyond computers, GUIs are used in many handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and industrial controls. The term GUI tends not to be applied to other lower-display resolution types of interfaces, such as video games (where head-up displays (HUDs) are preferred), or not including flat screens like volumetric displays because the term is restricted to the scope of 2D display screens able to describe generic information, in the tradition of the computer science research at the Xerox Palo Alto Research Center.", "title": "" }, { "paragraph_id": 2, "text": "Designing the visual composition and temporal behavior of a GUI is an important part of software application programming in the area of human–computer interaction. Its goal is to enhance the efficiency and ease of use for the underlying logical design of a stored program, a design discipline named usability. Methods of user-centered design are used to ensure that the visual language introduced in the design is well-tailored to the tasks.", "title": "GUI and interaction design" }, { "paragraph_id": 3, "text": "The visible graphical interface features of an application are sometimes referred to as chrome or GUI. Typically, users interact with information by manipulating visual widgets that allow for interactions appropriate to the kind of data they hold. The widgets of a well-designed interface are selected to support the actions necessary to achieve the goals of users. A model–view–controller allows flexible structures in which the interface is independent of and indirectly linked to application functions, so the GUI can be customized easily. This allows users to select or design a different skin at will, and eases the designer's work to change the interface as user needs evolve. Good GUI design relates to users more, and to system architecture less. Large widgets, such as windows, usually provide a frame or container for the main presentation content such as a web page, email message, or drawing. Smaller ones usually act as a user-input tool.", "title": "GUI and interaction design" }, { "paragraph_id": 4, "text": "A GUI may be designed for the requirements of a vertical market as application-specific GUIs. Examples include automated teller machines (ATM), point of sale (POS) touchscreens at restaurants, self-service checkouts used in a retail store, airline self-ticket and check-in, information kiosks in a public space, like a train station or a museum, and monitors or control screens in an embedded industrial application which employ a real-time operating system (RTOS).", "title": "GUI and interaction design" }, { "paragraph_id": 5, "text": "Cell phones and handheld game systems also employ application specific touchscreen GUIs. Newer automobiles use GUIs in their navigation systems and multimedia centers, or navigation multimedia center combinations.", "title": "GUI and interaction design" }, { "paragraph_id": 6, "text": "A GUI uses a combination of technologies and devices to provide a platform that users can interact with, for the tasks of gathering and producing information.", "title": "Components" }, { "paragraph_id": 7, "text": "A series of elements conforming a visual language have evolved to represent information stored in computers. This makes it easier for people with few computer skills to work with and use computer software. The most common combination of such elements in GUIs is the windows, icons, text fields, canvases, menus, pointer (WIMP) paradigm, especially in personal computers.", "title": "Components" }, { "paragraph_id": 8, "text": "The WIMP style of interaction uses a virtual input device to represent the position of a pointing device's interface, most often a mouse, and presents information organized in windows and represented with icons. Available commands are compiled together in menus, and actions are performed making gestures with the pointing device. A window manager facilitates the interactions between windows, applications, and the windowing system. The windowing system handles hardware devices such as pointing devices, graphics hardware, and positioning of the pointer.", "title": "Components" }, { "paragraph_id": 9, "text": "In personal computers, all these elements are modeled through a desktop metaphor to produce a simulation called a desktop environment in which the display represents a desktop, on which documents and folders of documents can be placed. Window managers and other software combine to simulate the desktop environment with varying degrees of realism.", "title": "Components" }, { "paragraph_id": 10, "text": "Entries may appear in a list to make space for text and details, or in a grid for compactness and larger icons with little space underneath for text. Variations inbetween exist, such as a list with multiple columns of items and a grid of items with rows of text extending sideways from the icon.", "title": "Components" }, { "paragraph_id": 11, "text": "Multi-row and multi-column layouts commonly found on the web are \"shelf\" and \"waterfall\". The former is found on image search engines, where images appear with a fixed height but variable length, and is typically implemented with the CSS property and parameter display: inline-block;. A waterfall layout found on Imgur and Tweetdeck with fixed width but variable height per item is usually implemented by specifying column-width:.", "title": "Components" }, { "paragraph_id": 12, "text": "Smaller app mobile devices such as personal digital assistants (PDAs) and smartphones typically use the WIMP elements with different unifying metaphors, due to constraints in space and available input devices. Applications for which WIMP is not well suited may use newer interaction techniques, collectively termed post-WIMP UIs.", "title": "Post-WIMP interface" }, { "paragraph_id": 13, "text": "As of 2011, some touchscreen-based operating systems such as Apple's iOS (iPhone) and Android use the class of GUIs named post-WIMP. These support styles of interaction using more than one finger in contact with a display, which allows actions such as pinching and rotating, which are unsupported by one pointer and mouse.", "title": "Post-WIMP interface" }, { "paragraph_id": 14, "text": "Human interface devices, for the efficient interaction with a GUI include a computer keyboard, especially used together with keyboard shortcuts, pointing devices for the cursor (or rather pointer) control: mouse, pointing stick, touchpad, trackball, joystick, virtual keyboards, and head-up displays (translucent information devices at the eye level).", "title": "Interaction" }, { "paragraph_id": 15, "text": "There are also actions performed by programs that affect the GUI. For example, there are components like inotify or D-Bus to facilitate communication between computer programs.", "title": "Interaction" }, { "paragraph_id": 16, "text": "Ivan Sutherland developed Sketchpad in 1963, widely held as the first graphical computer-aided design program. It used a light pen to create and manipulate objects in engineering drawings in realtime with coordinated graphics. In the late 1960s, researchers at the Stanford Research Institute, led by Douglas Engelbart, developed the On-Line System (NLS), which used text-based hyperlinks manipulated with a then-new device: the mouse. (A 1968 demonstration of NLS became known as \"The Mother of All Demos.\") In the 1970s, Engelbart's ideas were further refined and extended to graphics by researchers at Xerox PARC and specifically Alan Kay, who went beyond text-based hyperlinks and used a GUI as the main interface for the Smalltalk programming language, which ran on the Xerox Alto computer, released in 1973. Most modern general-purpose GUIs are derived from this system.", "title": "History" }, { "paragraph_id": 17, "text": "The Xerox PARC GUI consisted of graphical elements such as windows, menus, radio buttons, and check boxes. The concept of icons was later introduced by David Canfield Smith, who had written a thesis on the subject under the guidance of Kay. The PARC GUI employs a pointing device along with a keyboard. These aspects can be emphasized by using the alternative term and acronym for windows, icons, menus, pointing device (WIMP). This effort culminated in the 1973 Xerox Alto, the first computer with a GUI, though the system never reached commercial production.", "title": "History" }, { "paragraph_id": 18, "text": "The first commercially available computer with a GUI was the 1979 PERQ workstation, manufactured by Three Rivers Computer Corporation. Its design was heavily influenced by the work at Xerox PARC. In 1981, Xerox eventually commercialized the ideas from the Alto in the form of a new and enhanced system – the Xerox 8010 Information System – more commonly known as the Xerox Star. These early systems spurred many other GUI efforts, including Lisp machines by Symbolics and other manufacturers, the Apple Lisa (which presented the concept of menu bar and window controls) in 1983, the Apple Macintosh 128K in 1984, and the Atari ST with Digital Research's GEM, and Commodore Amiga in 1985. Visi On was released in 1983 for the IBM PC compatible computers, but was never popular due to its high hardware demands. Nevertheless, it was a crucial influence on the contemporary development of Microsoft Windows.", "title": "History" }, { "paragraph_id": 19, "text": "Apple, Digital Research, IBM and Microsoft used many of Xerox's ideas to develop products, and IBM's Common User Access specifications formed the basis of the GUIs used in Microsoft Windows, IBM OS/2 Presentation Manager, and the Unix Motif toolkit and window manager. These ideas evolved to create the interface found in current versions of Microsoft Windows, and in various desktop environments for Unix-like operating systems, such as macOS and Linux. Thus most current GUIs have largely common idioms.", "title": "History" }, { "paragraph_id": 20, "text": "GUIs were a hot topic in the early 1980s. The Apple Lisa was released in 1983, and various windowing systems existed for DOS operating systems (including PC GEM and PC/GEOS). Individual applications for many platforms presented their own GUI variants. Despite the GUIs advantages, many reviewers questioned the value of the entire concept, citing hardware limits, and problems in finding compatible software.", "title": "History" }, { "paragraph_id": 21, "text": "In 1984, Apple released a television commercial which introduced the Apple Macintosh during the telecast of Super Bowl XVIII by CBS, with allusions to George Orwell's noted novel Nineteen Eighty-Four. The goal of the commercial was to make people think about computers, identifying the user-friendly interface as a personal computer which departed from prior business-oriented systems, and becoming a signature representation of Apple products.", "title": "History" }, { "paragraph_id": 22, "text": "Windows 95, accompanied by an extensive marketing campaign, was a major success in the marketplace at launch and shortly became the most popular desktop operating system.", "title": "History" }, { "paragraph_id": 23, "text": "In 2007, with the iPhone and later in 2010 with the introduction of the iPad, Apple popularized the post-WIMP style of interaction for multi-touch screens, and those devices were considered to be milestones in the development of mobile devices.", "title": "History" }, { "paragraph_id": 24, "text": "The GUIs familiar to most people as of the mid-late 2010s are Microsoft Windows, macOS, and the X Window System interfaces for desktop and laptop computers, and Android, Apple's iOS, Symbian, BlackBerry OS, Windows Phone/Windows 10 Mobile, Tizen, WebOS, and Firefox OS for handheld (smartphone) devices.", "title": "History" }, { "paragraph_id": 25, "text": "Since the commands available in command line interfaces can be many, complex operations can be performed using a short sequence of words and symbols. Custom functions may be used to facilitate access to frequent actions. Command-line interfaces are more lightweight, as they only recall information necessary for a task; for example, no preview thumbnails or graphical rendering of web pages. This allows greater efficiency and productivity once many commands are learned. But reaching this level takes some time because the command words may not be easily discoverable or mnemonic. Also, using the command line can become slow and error-prone when users must enter long commands comprising many parameters or several different filenames at once. However, windows, icons, menus, pointer (WIMP) interfaces present users with many widgets that represent and can trigger some of the system's available commands.", "title": "Comparison to other interfaces" }, { "paragraph_id": 26, "text": "GUIs can be made quite hard when dialogs are buried deep in a system or moved about to different places during redesigns. Also, icons and dialog boxes are usually harder for users to script.", "title": "Comparison to other interfaces" }, { "paragraph_id": 27, "text": "WIMPs extensively use modes, as the meaning of all keys and clicks on specific positions on the screen are redefined all the time. Command-line interfaces use modes only in limited forms, such as for current directory and environment variables.", "title": "Comparison to other interfaces" }, { "paragraph_id": 28, "text": "Most modern operating systems provide both a GUI and some level of a CLI, although the GUIs usually receive more attention.", "title": "Comparison to other interfaces" }, { "paragraph_id": 29, "text": "GUI wrappers find a way around the command-line interface versions (CLI) of (typically) Linux and Unix-like software applications and their text-based UIs or typed command labels. While command-line or text-based applications allow users to run a program non-interactively, GUI wrappers atop them avoid the steep learning curve of the command-line, which requires commands to be typed on the keyboard. By starting a GUI wrapper, users can intuitively interact with, start, stop, and change its working parameters, through graphical icons and visual indicators of a desktop environment, for example. Applications may also provide both interfaces, and when they do the GUI is usually a WIMP wrapper around the command-line version. This is especially common with applications designed for Unix-like operating systems. The latter used to be implemented first because it allowed the developers to focus exclusively on their product's functionality without bothering about interface details such as designing icons and placing buttons. Designing programs this way also allows users to run the program in a shell script.", "title": "Comparison to other interfaces" }, { "paragraph_id": 30, "text": "Many environments and games use the methods of 3D graphics to project 3D GUI objects onto the screen. The use of 3D graphics has become increasingly common in mainstream operating systems (ex. Windows Aero, and Aqua (MacOS)) to create attractive interfaces, termed eye candy (which includes, for example, the use of drop shadows underneath windows and the cursor), or for functional purposes only possible using three dimensions. For example, user switching is represented by rotating a cube with faces representing each user's workspace, and window management is represented via a Rolodex-style flipping mechanism in Windows Vista (see Windows Flip 3D). In both cases, the operating system transforms windows on-the-fly while continuing to update the content of those windows.", "title": "Three-dimensional graphical user interface" }, { "paragraph_id": 31, "text": "The GUI is usually WIMP-based, although occasionally other metaphors surface, such as those used in Microsoft Bob, 3dwm, File System Navigator, File System Visualizer, 3D Mailbox, and GopherVR. Zooming (ZUI) is a related technology that promises to deliver the representation benefits of 3D environments without their usability drawbacks of orientation problems and hidden objects. In 2006, Hillcrest Labs introduced the first ZUI for television. Other innovations include the menus on the PlayStation 2, the menus on the Xbox, Sun's Project Looking Glass, Metisse, which was similar to Project Looking Glass, BumpTop, where users can manipulate documents and windows with realistic movement and physics as if they were physical documents, Croquet OS, which is built for collaboration, and compositing window managers such as Enlightenment and Compiz. Augmented reality and virtual reality also make use of 3D GUI elements.", "title": "Three-dimensional graphical user interface" }, { "paragraph_id": 32, "text": "3D GUIs have appeared in science fiction literature and films, even before certain technologies were feasible or in common use.", "title": "Three-dimensional graphical user interface" } ]
A graphical user interface, or GUI, is a form of user interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation. In many applications, GUIs are used instead of text-based UIs, which are based on typed command labels or text navigation. GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs), which require commands to be typed on a computer keyboard. The actions in a GUI are usually performed through direct manipulation of the graphical elements. Beyond computers, GUIs are used in many handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and industrial controls. The term GUI tends not to be applied to other lower-display resolution types of interfaces, such as video games, or not including flat screens like volumetric displays because the term is restricted to the scope of 2D display screens able to describe generic information, in the tradition of the computer science research at the Xerox Palo Alto Research Center.
2001-10-03T18:26:05Z
2023-12-27T13:18:02Z
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https://en.wikipedia.org/wiki/Graphical_user_interface
12,295
Gamete
A gamete (/ˈɡæmiːt/; from Ancient Greek γαμετή (gametḗ) 'wife', ultimately from Ancient Greek γάμος (gámos) 'marriage') is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum—and a male produces the smaller type, called a sperm. Sperm cells or spermatozoa are small and motile due to the flagellum, a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell or ovum is relatively large and non-motile. In short a gamete is an egg cell (female gamete) or a sperm (male gamete). In animals, ova mature in the ovaries of females and sperm develop in the testes of males. During fertilization, a spermatozoon and ovum unite to form a new diploid organism. Gametes carry half the genetic information of an individual, one ploidy of each type, and are created through meiosis, in which a germ cell undergoes two fissions, resulting in the production of four gametes. In biology, the type of gamete an organism produces determines the classification of its sex. This is an example of anisogamy or heterogamy, the condition in which females and males produce gametes of different sizes (this is the case in humans; the human ovum has approximately 100,000 times the volume of a single human sperm cell). In contrast, isogamy is the state of gametes from both sexes being the same size and shape, and given arbitrary designators for mating type. The name gamete was introduced by the German cytologist Eduard Strasburger. Male and female gametes set the basis for the sexual roles and sexual selection. Oogenesis is the process of female gamete formation in animals. This process involves meiosis (including meiotic recombination) occurring in the diploid primary oocyte to produce the haploid ovum. Spermatogenesis is the process of male gamete formation in animals. This process also involves meiosis occurring in the diploid primary spermatocyte to produce the haploid spermatozoon. It is generally accepted that isogamy is the ancestral state from which anisogamy evolved, although its evolution has left no fossil records. Oogamy also evolved from isogamy through anisogamy. There are almost invariably only two gamete types, all analyses showing that intermediate gamete sizes are eliminated due to selection. Intermediate sized gametes do not have the same advantages as small or large ones; they do worse than small ones in mobility and numbers, and worse than large ones in supply. In contrast to a gamete, a diploid somatic cell of an individual contains one copy of the chromosome set from the sperm and one copy of the chromosome set from the egg cell. Consequently, the cells of the offspring have genes potentially capable of expressing characteristics of both the father and the mother, subject to whether they are dominant or recessive. A gamete's chromosomes are not exact duplicates of either of the sets of chromosomes carried in the diploid chromosomes but a mixture of the two. Humans and most mammals use the XY sex-determination system in which a normal ovum can carry only an X chromosome whereas a sperm may carry either an X or a Y, while a non-normal sperm cell can end up carrying either no sex-defining chromosomes, an XY pair, or an XX pair; thus the male sperm determines the sex of any resulting zygote. If the zygote has two X chromosomes it will develop into a female, if it has an X and a Y chromosome, it will develop into a male. For birds, the female ovum determines the sex of the offspring, through the ZW sex-determination system. Artificial gametes, also known as In vitro derived gametes (IVD), stem cell-derived gametes (SCDGs), and In vitro generated gametes (IVG), are gametes derived from stem cells. The use of such artificial gametes would "necessarily require IVF techniques". Research shows that artificial gametes may be a reproductive technique for same-sex male couples, although a surrogate mother would still be required for the gestation period. Women who have passed menopause may be able to produce eggs and bear genetically related children with artificial gametes. Robert Sparrow wrote, in the Journal of Medical Ethics, that embryos derived from artificial gametes could be used to derive new gametes and this process could be repeated to create multiple human generations in the laboratory. This technique could be used to create cell lines for medical applications and for studying the heredity of genetic disorders. Additionally, this technique could be used for human enhancement by selectively breeding for a desired genome or by using recombinant DNA technology to create enhancements that have not arisen in nature. Plants which reproduce sexually also produce gametes. However, since plants have a life cycle involving alternation of diploid and haploid generations some differences exist. Plants use meiosis to produce spores that develop into multicellular haploid gametophytes which produce gametes by mitosis. The sperm are formed in an organ known as the antheridium and the egg cells in a flask-shaped organ called the archegonium. In flowering plants, the female gametophyte is produced inside the ovule within the ovary of the flower. When mature, the haploid gametophyte produces female gametes which are ready for fertilization. The male gametophyte is produced inside a pollen grain within the anther. When a pollen grain lands on a mature stigma of a flower it germinates to form a pollen tube that grows down the style into the ovary of the flower and then into the ovule. The pollen then produces sperm by mitosis and releases them for fertilization.
[ { "paragraph_id": 0, "text": "A gamete (/ˈɡæmiːt/; from Ancient Greek γαμετή (gametḗ) 'wife', ultimately from Ancient Greek γάμος (gámos) 'marriage') is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum—and a male produces the smaller type, called a sperm. Sperm cells or spermatozoa are small and motile due to the flagellum, a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell or ovum is relatively large and non-motile. In short a gamete is an egg cell (female gamete) or a sperm (male gamete). In animals, ova mature in the ovaries of females and sperm develop in the testes of males. During fertilization, a spermatozoon and ovum unite to form a new diploid organism. Gametes carry half the genetic information of an individual, one ploidy of each type, and are created through meiosis, in which a germ cell undergoes two fissions, resulting in the production of four gametes. In biology, the type of gamete an organism produces determines the classification of its sex.", "title": "" }, { "paragraph_id": 1, "text": "This is an example of anisogamy or heterogamy, the condition in which females and males produce gametes of different sizes (this is the case in humans; the human ovum has approximately 100,000 times the volume of a single human sperm cell). In contrast, isogamy is the state of gametes from both sexes being the same size and shape, and given arbitrary designators for mating type. The name gamete was introduced by the German cytologist Eduard Strasburger. Male and female gametes set the basis for the sexual roles and sexual selection.", "title": "" }, { "paragraph_id": 2, "text": "Oogenesis is the process of female gamete formation in animals. This process involves meiosis (including meiotic recombination) occurring in the diploid primary oocyte to produce the haploid ovum. Spermatogenesis is the process of male gamete formation in animals. This process also involves meiosis occurring in the diploid primary spermatocyte to produce the haploid spermatozoon.", "title": "" }, { "paragraph_id": 3, "text": "It is generally accepted that isogamy is the ancestral state from which anisogamy evolved, although its evolution has left no fossil records. Oogamy also evolved from isogamy through anisogamy. There are almost invariably only two gamete types, all analyses showing that intermediate gamete sizes are eliminated due to selection. Intermediate sized gametes do not have the same advantages as small or large ones; they do worse than small ones in mobility and numbers, and worse than large ones in supply.", "title": "Evolution" }, { "paragraph_id": 4, "text": "In contrast to a gamete, a diploid somatic cell of an individual contains one copy of the chromosome set from the sperm and one copy of the chromosome set from the egg cell. Consequently, the cells of the offspring have genes potentially capable of expressing characteristics of both the father and the mother, subject to whether they are dominant or recessive. A gamete's chromosomes are not exact duplicates of either of the sets of chromosomes carried in the diploid chromosomes but a mixture of the two.", "title": "Dissimilarity" }, { "paragraph_id": 5, "text": "Humans and most mammals use the XY sex-determination system in which a normal ovum can carry only an X chromosome whereas a sperm may carry either an X or a Y, while a non-normal sperm cell can end up carrying either no sex-defining chromosomes, an XY pair, or an XX pair; thus the male sperm determines the sex of any resulting zygote. If the zygote has two X chromosomes it will develop into a female, if it has an X and a Y chromosome, it will develop into a male.", "title": "Sex determination in mammals and birds" }, { "paragraph_id": 6, "text": "For birds, the female ovum determines the sex of the offspring, through the ZW sex-determination system.", "title": "Sex determination in mammals and birds" }, { "paragraph_id": 7, "text": "Artificial gametes, also known as In vitro derived gametes (IVD), stem cell-derived gametes (SCDGs), and In vitro generated gametes (IVG), are gametes derived from stem cells. The use of such artificial gametes would \"necessarily require IVF techniques\". Research shows that artificial gametes may be a reproductive technique for same-sex male couples, although a surrogate mother would still be required for the gestation period. Women who have passed menopause may be able to produce eggs and bear genetically related children with artificial gametes. Robert Sparrow wrote, in the Journal of Medical Ethics, that embryos derived from artificial gametes could be used to derive new gametes and this process could be repeated to create multiple human generations in the laboratory. This technique could be used to create cell lines for medical applications and for studying the heredity of genetic disorders. Additionally, this technique could be used for human enhancement by selectively breeding for a desired genome or by using recombinant DNA technology to create enhancements that have not arisen in nature.", "title": "Artificial gametes" }, { "paragraph_id": 8, "text": "Plants which reproduce sexually also produce gametes. However, since plants have a life cycle involving alternation of diploid and haploid generations some differences exist. Plants use meiosis to produce spores that develop into multicellular haploid gametophytes which produce gametes by mitosis. The sperm are formed in an organ known as the antheridium and the egg cells in a flask-shaped organ called the archegonium. In flowering plants, the female gametophyte is produced inside the ovule within the ovary of the flower. When mature, the haploid gametophyte produces female gametes which are ready for fertilization. The male gametophyte is produced inside a pollen grain within the anther. When a pollen grain lands on a mature stigma of a flower it germinates to form a pollen tube that grows down the style into the ovary of the flower and then into the ovule. The pollen then produces sperm by mitosis and releases them for fertilization.", "title": "Plants" } ]
A gamete is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum—and a male produces the smaller type, called a sperm. Sperm cells or spermatozoa are small and motile due to the flagellum, a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell or ovum is relatively large and non-motile. In short a gamete is an egg cell or a sperm. In animals, ova mature in the ovaries of females and sperm develop in the testes of males. During fertilization, a spermatozoon and ovum unite to form a new diploid organism. Gametes carry half the genetic information of an individual, one ploidy of each type, and are created through meiosis, in which a germ cell undergoes two fissions, resulting in the production of four gametes. In biology, the type of gamete an organism produces determines the classification of its sex. This is an example of anisogamy or heterogamy, the condition in which females and males produce gametes of different sizes. In contrast, isogamy is the state of gametes from both sexes being the same size and shape, and given arbitrary designators for mating type. The name gamete was introduced by the German cytologist Eduard Strasburger. Male and female gametes set the basis for the sexual roles and sexual selection. Oogenesis is the process of female gamete formation in animals. This process involves meiosis occurring in the diploid primary oocyte to produce the haploid ovum. Spermatogenesis is the process of male gamete formation in animals. This process also involves meiosis occurring in the diploid primary spermatocyte to produce the haploid spermatozoon.
2001-06-12T18:44:09Z
2023-12-14T02:44:14Z
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https://en.wikipedia.org/wiki/Gamete
12,296
List of German proverbs
[]
2022-03-22T21:35:03Z
[ "Template:Short description", "Template:Wikiquote redirect", "Template:Short pages monitor" ]
https://en.wikipedia.org/wiki/List_of_German_proverbs
12,300
George R. R. Martin
George Raymond Richard Martin (born George Raymond Martin; September 20, 1948), also known as GRRM, is an American novelist, screenwriter, television producer and short story writer. He is the author of the series of epic fantasy novels A Song of Ice and Fire, which were adapted into the Emmy Award-winning HBO series Game of Thrones (2011–2019) and its prequel series House of the Dragon (2022–present). He also helped create the Wild Cards anthology series, and contributed worldbuilding for the 2022 video game Elden Ring. In 2005, Lev Grossman of Time called Martin "the American Tolkien", and in 2011, he was included on the annual Time 100 list of the most influential people in the world. He is a longtime citizen of Santa Fe, New Mexico, where he helped fund Meow Wolf and owns the Jean Cocteau Cinema. The city commemorates March 29 as George R. R. Martin Day. George Raymond Martin (he adopted the confirmation name Richard at 13 years old) was born on September 20, 1948, in Bayonne, New Jersey, the son of longshoreman Raymond Collins Martin and Margaret Brady Martin. His mother's family had once been wealthy, owning a successful construction business, but lost it all in the Great Depression, something Martin was reminded about every day when he passed what used to be his family's dock and house. He has two younger sisters, Darleen and Jane. He is predominantly of Irish descent; a DNA test on the series Finding Your Roots showed him to be 53.6% "British and Irish", 22.4% Ashkenazi Jewish, and 15.6% "Broadly Northwestern European". The family first lived in a house on Broadway belonging to Martin's great-grandmother. In 1953, they moved to a federal housing project near the Bayonne docks. During Martin's childhood, his world consisted predominantly of "First Street to Fifth Street", between his grade school and his home. This limited world made him want to travel and experience other places, but the only way of doing so was through his imagination, and he became a voracious reader. Martin began writing and selling monster stories for pennies to other neighborhood children, dramatic readings included. He had to stop once a customer's mother complained about her child's nightmares. He also wrote stories about a mythical kingdom populated by his pet turtles — the turtles died frequently in their toy castle, so he decided they were killing each other off in "sinister plots". Martin had a habit of starting "endless stories" that he never completed, as they did not turn out as well on paper as he had imagined them. Martin attended Mary Jane Donohoe School and later Marist High School. While there, he became an avid comic-book fan, developing a strong interest in the superheroes being published by Marvel Comics, and later credited Stan Lee for being one of his greatest literary influences; "Maybe Stan Lee is the greatest literary influence on me, even more than Shakespeare or Tolkien." A letter Martin wrote to the editor of Fantastic Four was printed in issue #20 (November 1963); it was the first of many sent, e.g., Fantastic Four #32, #34, and others. Fans who read his letters wrote him letters in turn, and through such contacts, Martin joined the fledgling comics fandom of the era, writing fiction for various fanzines; he bought the first ticket to the world's first Comic-Con, held in New York in 1964. In 1965, Martin won comic fandom's Alley Award for Best Fan Fiction for his prose superhero story "Powerman vs. The Blue Barrier". In 1970, Martin earned a B.S. in journalism with a minor in history from Northwestern University's Medill School of Journalism in Evanston, Illinois, graduating summa cum laude; he went on to complete his M.S. in Journalism in 1971, also from Medill. Eligible for the draft during the Vietnam War, to which he objected, Martin applied for and obtained conscientious objector status; he instead did alternative service work for two years (1972–1974) as a VISTA volunteer, attached to the Cook County Legal Assistance Foundation. Martin began selling science fiction short stories professionally in 1970, at age 21. His first sale was "The Hero", sold to Galaxy magazine and published in its February 1971 issue; other sales soon followed. His first story to be nominated for the Hugo Award and Nebula Awards was "With Morning Comes Mistfall", published in 1973 in Analog magazine. In 1975 his story "...for a single yesterday" about a post-apocalyptic timetripper was selected for inclusion in Epoch, a science fiction anthology edited by Roger Elwood and Robert Silverberg. His first novel, Dying of the Light, was completed in 1976 right before he moved to Dubuque and published in 1977. That same year the enormous success of Star Wars had a huge impact on the publishing industry and science fiction, and he sold the novel for the same amount he would make in three years of teaching. The short stories he was able to sell in his early 20s gave him some profit but not enough to pay his bills, which prevented him from becoming the full-time writer he wanted to be. The need for a day job occurred simultaneously with the American chess craze which followed Bobby Fischer's victory in the 1972 world chess championship. Martin's own chess skills and experience allowed him to be hired as a tournament director for the Continental Chess Association, which ran chess tournaments on the weekends. This gave him a sufficient income, and because the tournaments only ran on Saturdays and Sundays, it allowed him to work as a writer five days a week from 1973 to 1976. By the time the chess bubble subsequently burst and no longer provided an income, he had become much better established as a writer. In the mid-1970s, Martin met English professor George Guthridge from Dubuque, Iowa, at a science fiction convention in Milwaukee. Martin persuaded Guthridge (who later said that at that time he despised science fiction and fantasy) not only to give speculative fiction a second look, but also to write in the field himself. Guthridge has since been a finalist for the Hugo Award and twice for the Nebula Award for science fiction and fantasy. In 1998, Guthridge and Janet Berliner won the Bram Stoker Award for Superior Achievement in the Novel for their Children of the Dusk. In turn, Guthridge helped Martin in finding a job at Clarke University (then Clarke College). Martin "wasn't making enough money to stay alive" from writing and the chess tournaments, says Guthridge. From 1976 to 1978, Martin was an English and journalism instructor at Clarke, and he became Writer In Residence at the college from 1978 to 1979. While he enjoyed teaching, the sudden death of friend and fellow author Tom Reamy in late 1977 made Martin reevaluate his own life, and he eventually decided to try to become a full-time writer. In 1979 he resigned from his job and moved from Dubuque to Santa Fe, New Mexico at the end of the year. There he would live alone for almost three years, a period he described as tremendously productive in regard of writing. Martin is a member of the Science Fiction and Fantasy Writers of America (SFWA); he served as the organization's Southwest Regional Director from 1977 to 1979, and as its vice-president from 1996 to 1998. In 1976, for Kansas City's MidAmeriCon, the 34th World Science Fiction Convention (Worldcon), Martin and his friend and fellow writer-editor Gardner Dozois conceived of and organized the first Hugo Losers' Party for the benefit of all past and present Hugo-losing writers on the evening following the convention's Hugo Awards ceremony. Martin was nominated for two Hugos that year but lost both awards, for the novelette "...and Seven Times Never Kill Man" and the novella The Storms of Windhaven, co-written with Lisa Tuttle. Although Martin often writes fantasy or horror, a number of his earlier works are science fiction tales occurring in a loosely defined future history, known informally as "The Thousand Worlds" or "The Manrealm". In 2017, Martin recalled that he had started writing science fiction-horror hybrids in the late 1970s to disprove a statement from a critic claiming that science fiction and horror were opposites and therefore incompatible. Martin considered Sandkings (1979) the best known of these. Another was the novella Nightflyers (1980), whose screen and television rights were purchased by Vista in 1984, which produced a 1987 film adaptation, Nightflyers, with a screenplay co-written by Martin. Martin was unhappy about having to cut plot elements in order to accommodate the film's small budget. While not a hit at theatres, Martin believes that the film saved his career, and that everything he has written since exists in large part because of it. He has also written at least one piece of political-military fiction, "Night of the Vampyres", collected in Harry Turtledove's anthology The Best Military Science Fiction of the 20th Century (2001). In 1982, Martin published a vampire novel titled Fevre Dream set in the 19th century on the Mississippi River. Unlike traditional vampire novels, in Fevre Dream vampires are not supernatural creatures, but are rather a different species related to humans created by evolution with superhuman powers. Critic Don D'Amassa has praised Fevre Dream for its strong 19th century atmosphere and wrote: "This is without question one of the greatest vampire novels of all time". Martin followed up Fevre Dream with another horror novel, The Armageddon Rag (1983). The unexpected commercial failure of The Armageddon Rag "essentially destroyed my career as a novelist at the time", he recalled, and made him consider going into real estate instead. In 1984, the new editor of Baen Books, Betsy Mitchell, called Martin to ask him if he had considered doing a collection of Haviland Tuf adventures. Martin, who had several favorite series characters like Solomon Kane, Elric, Nicholas van Rijn and Magnus Ridolph, had made an attempt to create such a character on his own in the 1970s with his Tuf stories. He was interested, but was too occupied with the writing of his next book, the never-completed novel Black and White and Red All Over, which occupied most of his writing time the same year. But after the failure of The Armageddon Rag, all editors rejected his upcoming novel, and desperate for money, he accepted Mitchell's offer and wrote some more Tuf stories which were collected in Tuf Voyaging, which sold well enough for Mitchell to suggest a sequel. Martin was willing and agreed to do it, but before he got started he got an offer from Hollywood, where producer Philip DeGuere Jr. wanted to adapt The Armageddon Rag into a film. The film adaptation did not happen, but they stayed in touch, and when DeGuere became the producer for the revival of The Twilight Zone, Martin was offered a job as a writer. Working for television paid a lot better than writing literature, so he decided to move to Hollywood to seek a new career. At first he worked as staff writer for the show, and then as an executive story consultant. After the CBS series was cancelled, Martin migrated over to the already-underway satirical science fiction series Max Headroom. He worked on scripts and created the show's "Ped Xing" character. However, before his scripts could go into production, the ABC show was cancelled in the middle of its second season. Martin was hired as a writer-producer on the new dramatic fantasy series Beauty and the Beast; in 1989, he became the show's co-supervising producer and wrote 14 of its episodes. In 1987, Martin published a collection of short horror stories in Portraits of His Children. During this same period, Martin continued working in print media as a book-series editor, this time overseeing the development of the multi-author Wild Cards book series, which takes place in a shared universe in which a small slice of post–World War II humanity gains superpowers after the release of an alien-engineered virus; new titles are published in the ongoing series from Tor Books. In Second Person, Martin "gives a personal account of the close-knit role-playing game (RPG) culture that gave rise to his Wild Cards shared-world anthologies". An important element in the creation of the multiple author series was a campaign of Chaosium's role-playing game Superworld (1983) that Martin ran in Albuquerque. Admitting he became completely obsessed with the game, he stopped writing literature for most of 1983, which he refers to as his "lost year", but his shrinking bank accounts made him realize he had to come up with something, and got the idea that perhaps the stories and characters created in Superworld could somehow become profitable. Martin's own contributions to Wild Cards have included Thomas Tudbury, "The Great and Powerful Turtle", a powerful psychokinetic whose flying "shell" consisted of an armored VW Beetle. As of June 2011, 21 Wild Cards volumes had been published in the series; earlier that same year, Martin signed the contract for the 22nd volume, Low Ball (2014), published by Tor Books. In early 2012, Martin signed another Tor contract for the 23rd Wild Cards volume, High Stakes, which was released in August 2016. In August 2016, Martin announced that Universal Cable Productions had acquired the rights to adapt the Wild Cards novels into a television series. He noted that he himself would not write for the adaptation due to focusing on A Song of Ice and Fire. In 1991, Martin briefly returned to writing novels. He had grown frustrated that his TV pilots and screenplays were not getting made and that TV-related production limitations like budgets and episode lengths were forcing him to cut characters and trim battle scenes. This pushed Martin back towards writing books, where he did not have to worry about compromising his imagination. Admiring the works of J. R. R. Tolkien in his childhood, he wanted to write an epic fantasy, though he did not have any specific ideas. His epic fantasy series, A Song of Ice and Fire, was inspired by the Wars of the Roses, The Accursed Kings and Ivanhoe. Though Martin originally conceptualized it as being three volumes, it is currently slated to comprise seven. The first, A Game of Thrones, was published in 1996, followed by A Clash of Kings in 1998 and A Storm of Swords in 2000. In November 2005, A Feast for Crows, the fourth novel in this series, became The New York Times No. 1 Bestseller. The fifth book, A Dance with Dragons, was published July 12, 2011, and became an international bestseller, including achieving a No. 1 spot on the New York Times Bestseller List and many others; it remained on the New York Times list for 88 weeks. In 2012, A Dance With Dragons made the final ballot for science fiction and fantasy's Hugo Award, World Fantasy Award, Locus Poll Award, and the British Fantasy Award; the novel went on to win the Locus Poll Award for Best Fantasy Novel. Two more novels are planned in the series: The Winds of Winter and the final volume A Dream of Spring. On April 25, 2018, Martin announced the release date of his new book, Fire & Blood, dealing with the history of House Targaryen, which was released on November 20, 2018. Should Martin die before finishing the A Song of Ice and Fire series, former collaborators have said that they will not conclude the series for him. HBO Productions purchased the television rights for the A Song of Ice and Fire series in 2007. Although busy completing A Dance With Dragons and other projects, George R. R. Martin was heavily involved in the production of the television series adaptation of his books. Martin's involvement included the selection of a production team and participation in scriptwriting; the opening credits list him as a co-executive producer of the series. The original pilot was shot between October 24 and November 19, 2009, on location in Northern Ireland, Scotland and Morocco. It was received so poorly by HBO executives that they did not make a decision for four months after the pilot was delivered. In March 2010, HBO's decision to greenlight the series was announced, with the production of the series scheduled to start June 2010. HBO however demanded the first episode be reshot, and wanted all the scenes from Morocco scrapped. The first episode ("Winter Is Coming") premiered on HBO in the United States and Canada on April 17, 2011. It was seen initially by 2.2 million viewers. The first season was nominated for 13 Emmy Awards, ultimately winning two: one for its opening title credits, and one for Peter Dinklage as Best Supporting Actor. HBO ordered a second season of Game of Thrones on April 19, 2011, two days after the series premiere. The second season obtained a 15% increase in budget in order to be able to stage the war's most important battle, the Battle of the Blackwater, in episode nine which was written by George R. R. Martin. Filming took place during 106 shooting days. During three-quarters of those, two crews ("Dragon" and "Wolf") were working simultaneously in different locations. Alan Taylor was promoted to co-executive producer and directed four episodes, including the season premiere and finale. David Petrarca and David Nutter each directed two episodes, while series cinematographer Alik Sakharov and filmmaker Neil Marshall directed the remaining two. The second season premiered in the United States on HBO on April 1, 2012, and concluded on June 3, 2012. U.S. viewership rose by approximately 8% over the course of the season, from 3.9 million to 4.2 million by the season finale. The second season won six of the twelve Emmy Awards for which it was nominated. Game of Thrones rapidly became a critical and commercial success after the second season. HBO renewed the series for a third season on April 10, 2012, nine days after the second season's premiere. Production began in July 2012 and concluded with the wrap of the unit filming in Iceland on November 24, 2012. The third season is based on the first half of the novel A Storm of Swords. Benioff had previously said that A Storm of Swords would need to be adapted in two seasons on account of its length. Benioff and Weiss also noted that they thought of Game of Thrones as an adaptation of the series as a whole, rather than of individual novels, which gave them the liberty to move scenes back and forth across novels according to the requirements of the screen adaptation. Season 3 saw the first significant use of the Valyrian languages, spoken in doomed Valyria and its former colonies in Essos. The constructed languages were developed by linguist David J. Peterson based on the few words Martin invented for the novels. Peterson had previously developed the Dothraki language, used principally in season 1. The third season premiered on HBO on March 31, 2013, and concluded on June 9, 2013. The third season was seen by 14.2 million viewers. It won 2 of the 16 Emmy Awards for which it was nominated. Two days after third season premiere, HBO ordered the fourth season on April 2, 2013, which began filming in July 2013. The season is adapted primarily from the second half of A Storm of Swords, along with elements of A Feast for Crows and A Dance with Dragons. Showrunners David Benioff and D. B. Weiss co-wrote seven out of ten episodes. The remaining three episodes were written by Bryan Cogman (two episodes), and George R. R. Martin (one episode). For this season, the filming lasted 136 days and was completed on November 21, 2013. The fourth season premiered in the United States on HBO on April 6, 2014, and concluded on June 15, 2014. The season was met with largely positive reviews. It won 4 of the 19 Emmy Awards for which it was nominated. With its fourth season, Game of Thrones has become the most-watched HBO series in history (surpassing the fourth season of The Sopranos which had a gross audience of 18.2 million viewers), averaging 18.4 million viewers across multiple platforms, including live viewing, encores, DVR views, HBO GO and On Demand views. Up until the fourth season, Martin wrote one episode for each season. In 2022, Martin said that he had been estranged from the show during the production process of the last 4 seasons (starting with season 5). In the early seasons, Martin wrote and read scripts, consulted on casting decisions and visited sets. Over time, however, as he stepped back to focus on his long-delayed next “Thrones” novel, "The Winds of Winter". Following the gargantuan success of the fourth season, HBO ordered the fifth season on April 8, 2014, together with the sixth season, which began filming in July 2014. The season primarily adapts the storylines from A Feast for Crows and A Dance with Dragons, also with original content not found in Martin's novels. This season set a Guinness World Record for winning the highest number of Emmy Awards for a series in a single season and year, winning 12 out of 24 nominations, including Outstanding Drama Series. With a budget over $100 million for the whole season, filming for the sixth season began in July 2015 and ended on December. The season filmed in five different countries: Northern Ireland, Spain, Croatia, Iceland, and Canada. This season saw the overall plot of the show diverging from the source material. Some of the season's storyline is derived from content not yet published in Martin's A Song of Ice and Fire series, although a significant amount of material from A Feast for Crows, A Dance with Dragons and the upcoming sixth novel The Winds of Winter, which Martin previously outlined to showrunners David Benioff and D.B. Weiss, was used. The season was largely met with positive reviews. The "Battle of the Bastards" episode received immense critical acclaim, with many calling it one of the best television episodes of all time. U.S. viewership rose compared to the previous season, and by approximately 13 percent over its course, from 7.9 million to 8.9 million by the finale. The season won 12 of the 23 Emmy Awards for which it was nominated. Three days before the premiere of the episode "The Red Woman", HBO ordered the seventh season. Due to necessary weather conditions required for filming, the production of the penultimate season of the show was delayed that year. Filming began only on August 31, 2016, at Titanic Studios in Belfast, and ended in February 2017. Unlike previous seasons, the seventh and eighth seasons largely consisted of original content not found in the source material. This season comprised only seven episodes. The showrunners stated that they were unable to produce 10 episodes in the show's usual 12 to 14 month time frame, as Weiss said "It's crossing out of a television schedule into more of a mid-range movie schedule". The average runtime of an episode in this season was approximately 63 minutes. The series received 22 nominations for the 70th Primetime Emmy Awards and won 9 of them, including "Outstanding Drama Series". Unlike its prior seasons, the final one took a year gap for its production and filming. The eighth season consisted of only six episodes, though the average runtime of an episode was 68 minutes, the longest of all seasons, with "The Long Night" consisting of 81 minutes. The season was met with mixed reviews from critics, with the performances, production values and music score were praised, criticism was mainly directed at the shorter runtime of the season as well as numerous creative decisions made by the showrunners. Many commentators deemed it to be a disappointing conclusion to the series. The season received 32 nominations at the 71st Primetime Emmy Awards, the most for a single season of television in history. It won twelve, including Outstanding Drama Series and Outstanding Supporting Actor in a Drama Series for Peter Dinklage. Three years after the show ended, a prequel series, House of the Dragon, premiered on HBO in August 21, 2022. Based on parts of the novel Fire & Blood, the series is set about 200 years before the events of Game of Thrones. Ryan Condal and Miguel Sapochnik served as the showrunners for the first season. Five days after its premiere, the series was renewed for a second season by HBO. On September 1, Sapochnik departed as showrunner, with another veteran Game of Thrones director Alan Taylor replacing him as the co-showrunner for the upcoming second season. In June 2022, it was reported that a Jon Snow sequel series with Kit Harington to reprise his role was in early development at HBO. The working title is Snow and Martin confirmed his involvement with the project and that Harington initiated the idea. Also in June, Martin said there were still three other live-action series in development: 10,000 Ships (written by Amanda Segal), 9 Voyages aka Sea Snake (written by Bruno Heller), and the Dunk & Egg prequel series (written by Steven Conrad), tentatively titled either The Hedge Knight or Knight of the Seven Kingdoms. In January 2021, an animated drama series was announced as in development at HBO Max. In July 2021, two more animated series were in development at HBO Max, with one being set in Yi Ti, a nation in Essos loosely based on Imperial China. Martin's work has been described as having "complex story lines, fascinating characters, great dialogue, perfect pacing" by literary critic Jeff VanderMeer. Dana Jennings of the New York Times described Martin's work as "fantasy for grown ups" and Lev Grossman wrote that it was dark and cynical. Martin's first novel, Dying of the Light, set the tone for some of his future work; it unfolds on a mostly abandoned planet that is slowly becoming uninhabitable as it moves away from its sun. This story has a strong sense of melancholy. His characters are often unhappy or, at least, unsatisfied, in many cases holding on to idealisms in spite of an otherwise chaotic and ruthless world, and often troubled by their own self-seeking or violent actions, even as they undertake them. Many have elements of tragic heroes or antiheroes in them; reviewer T. M. Wagner writes: "Let it never be said Martin doesn't share Shakespeare's fondness for the senselessly tragic." The overall gloominess of A Song of Ice and Fire can be an obstacle for some readers; the Inchoatus Group writes that, "If this absence of joy is going to trouble you, or you're looking for something more affirming, then you should probably seek elsewhere." However, for many fans, it is precisely this level of "realness" and "completeness"–including many characters' imperfections, moral and ethical ambiguity, and (often sudden) consequential plot twists that is endearing about Martin's work. Many find that this is what makes the series' story arcs compelling enough to keep following despite its sheer brutality and intricately messy and interwoven plotlines; as TM Wagner points out: There's great tragedy here, but there's also excitement, humor, heroism even in weaklings, nobility even in villains, and, now and then, a taste of justice after all. It's a rare gift when a writer can invest his story with that much humanity. Martin's characters are multifaceted, each with intricate pasts, aspirations, and ambitions. Publishers Weekly writes of his ongoing epic fantasy A Song of Ice and Fire: "The complexity of characters such as Daenerys, Arya and the Kingslayer will keep readers turning even the vast number of pages contained in this volume, for the author, like Tolkien or Jordan, makes us care about their fates." Misfortune, injury, and death (including false death and reanimation) often befall major or minor characters, no matter how attached the reader has become. Martin has described his penchant for killing off important characters as being necessary for the story's depth: "when my characters are in danger, I want you to be afraid to turn the page, (so) you need to show right from the beginning that you're playing for keeps". In distinguishing his work from others, Martin makes a point of emphasizing realism and plausible social dynamics above an over-reliance on magic and a simplistic "good versus evil" dichotomy, for which contemporary fantasy writing is often criticized. Notably, Martin's work makes a sharp departure from the prevalent "heroic knights and chivalry" schema that has become a mainstay in fantasy as derived from J. R. R. Tolkien's The Lord of the Rings. He specifically critiques the oversimplification of Tolkien's themes and devices by imitators in ways that he has humorously described as "Disneyland Middle Ages", which gloss over or ignore major differences between medieval and modern societies, particularly social structures, ways of living, and political arrangements. Martin has been described as "the American Tolkien" by literary critics. While Martin finds inspiration in Tolkien's legacy, he aims to go beyond what he sees as Tolkien's "medieval philosophy" of "if the king was a good man, the land would prosper" to delve into the complexities, ambiguities, and vagaries of real-life power: "We look at real history and it's not that simple... Just having good intentions doesn't make you a wise king." Per this fact Martin has been credited with the rise of grimdark fantasy, a modern form of an "anti-Tolkien" approach to fantasy writing which, according to British science fiction and fantasy novelist Adam Roberts, is characterized by its reaction to Tolkien's idealism even though it owes a lot to Tolkien's work. The Canadian fantasy writer R. Scott Bakker "says he wouldn't have been able to publish his fantasy novels without the success George R. R. Martin achieved first". Similarly, Mark Lawrence, author of Prince of Thorns, was inspired by Martin and impressed by his Red Wedding scene. The author makes a point of grounding his work on a foundation of historical fiction, which he channels to evoke important social and political elements of primarily the European medieval era that differ markedly from elements of modern times, including the multigenerational, rigid, and often brutally consequential nature of the hierarchical class system of feudal societies that is in many cases overlooked in fantasy writing. Even as A Song of Ice and Fire is a fantasy series that employs magic and the surreal as central to the genre, Martin is keen to ensure that magic is merely one element of many that moves his work forward, not a generic deus ex machina that is itself the focus of his stories, which is something he has been very conscious about since reading Tolkien; "If you look at The Lord of the Rings, what strikes you, it certainly struck me, is that although the world is infused with this great sense of magic, there is very little onstage magic. So you have a sense of magic, but it's kept under very tight control, and I really took that to heart when I was starting my own series." Martin's ultimate aim is an exploration of the internal conflicts that define the human condition, which, in deriving inspiration from William Faulkner, he ultimately describes as the only reason to read any literature, regardless of genre. In 2018, Martin called The Lord of the Rings, The Great Gatsby, Gone with the Wind, Great Expectations, Lonesome Dove, Catch-22, and Charlotte's Web "favorites all, towering masterpieces, books that changed my life". In 2017, Martin confirmed he would serve as an executive producer of the HBO television series adaptation of the 2010 science fantasy novel Who Fears Death by Nnedi Okorafor. Martin also contributed to the 2022 video game titled Elden Ring, writing the worldbuilding aspects for it. In February 2021, it was reported that Martin and Kalinda Vazquez were developing a TV adaptation of Roadmarks by Roger Zelazny, which Martin pitched to HBO in 2020. Martin will be an executive producer, Vazquez the showrunner, writer and executive producer. In March 2021, he signed an overall deal with HBO. Martin will serve as an executive producer of the Peacock TV adaptation in development of his Wild Cards book series, together with Melinda M. Snodgrass and Vince Gerardis, Martin's manager. He will serve as an executive producer of the 2022 AMC series Dark Winds based on Tony Hillerman's Leaphorn & Chee books, together with the creator Graham Roland, the showrunner Vince Calandra, the lead Zahn McClarnon, Kiowa Gordon, Chris Eyre, Robert Redford, Tina Elmo and Vince Gerardis. In 2021, Martin served as one of the producers of the short film Night of the Cooters based on the eponymous short story by Howard Waldrop. Martin actively contributes to his blog, Not a Blog; in April 2018, he moved his blog from Livejournal to his own website. Martin's official fan club is the "Brotherhood Without Banners", which has a regular posting board at the Forum of the website westeros.org, which is focused on his A Song of Ice and Fire fantasy series. At the annual World Science Fiction Convention every year, the Brotherhood Without Banners hosts a large, on-going hospitality suite that is open to all members of the Worldcon. Martin is opposed to fan fiction, which he views as copyright infringement and a bad exercise for aspiring writers in terms of developing skills in worldbuilding and character development. Martin is known for his regular attendance at science fiction conventions and comics conventions, and his accessibility to fans. In the early 1980s, critic and writer Thomas Disch identified Martin as a member of the "Labor Day Group", writers who regularly congregated at the annual Worldcon, usually held on or around the Labor Day weekend. Since the early 1970s, he has also attended regional science fiction conventions; further, since 1986, Martin has participated annually in Albuquerque's smaller regional convention Bubonicon, near his New Mexico home. He was the Guest of Honor at the 61st World Science Fiction Convention in Toronto, held in 2003. In December 2016, Martin was a key speaker at the Guadalajara International Book Fair 2016 in Mexico where the author provided hints about the next two books in the series A Song of Ice and Fire. In 2020, Martin fulfilled his duties as “toastmaster” of the Hugo Awards. During the event, he mispronounced several names, including that of R. F. Kuang, which she considered a microaggression. Martin later apologized for mispronouncing the names. Martin has been criticized by some of his readers for the long periods between books in the A Song of Ice and Fire series, notably the six-year gap between the fourth volume, A Feast for Crows (2005), and the fifth volume, A Dance with Dragons (2011). In 2010, Martin had responded to fan criticisms by saying he was unwilling to write only his A Song of Ice and Fire series, noting that working on other prose and compiling and editing different book projects have always been part of his working process. In the early 1970s, Martin was in a relationship with fellow science fiction/fantasy author Lisa Tuttle, with whom he co-wrote Windhaven. While attending an East Coast science fiction convention he met his first wife, Gale Burnick; they were married in 1975 and moved from their Chicago apartment and into a house in Dubuque in 1976. Both of them grew tired of the hard winters there, and when she graduated from Clarke in June 1979, he resigned from his job and they decided to move to New Mexico. The year before they had "fallen in love" with Santa Fe on their way to the worldcon in Phoenix. His wife went down and bought a house while Martin stayed behind to sell their home and finish the semester. The marriage ended in divorce in 1979, before they could be reunited in Santa Fe. Instead he settled there alone from December that same year until September 1981, when what would be his longtime partner Parris McBride moved in with him. On February 15, 2011, Martin married McBride during a small ceremony at their Santa Fe home. On August 19, 2011, they held a larger wedding ceremony and reception at Renovation, the 69th World Science Fiction Convention. He and McBride are supporters of the Wild Spirit Wolf Sanctuary in New Mexico. In early 2013, he purchased Santa Fe's Jean Cocteau Cinema and Coffee House, which had been closed since 2006. He had the property completely restored, including both its original 35mm capability to which was added digital projection and sound; the Cocteau officially reopened for business on August 9, 2013. In 2019, he opened a bookstore named Beastly Books, after Beauty and the Beast, next to Jean Cocteau. Martin has also supported Meow Wolf, an arts collective in Santa Fe, having pledged $2.7 million toward a new art space in January 2015. In response to a question on his religious views, Martin replied: "I suppose I'm a lapsed Catholic. You would consider me an atheist or agnostic. I find religion and spirituality fascinating. I would like to believe this isn't the end and there's something more, but I can't convince the rational part of me that makes any sense whatsoever." Martin is a fan of the New York Jets, the New York Giants and the New York Mets. He is also a fan of the Grateful Dead, and says that the band's music may have influenced his work. Martin made a guest appearance as himself in an episode, "El Skeletorito", of the Adult Swim show Robot Chicken. He also appeared in SyFy's Z Nation as a zombie version of himself in season two's "The Collector", where he is still signing copies of his new novel. In Sharknado 3: Oh Hell No!, he is killed when watching a movie at the theatre. In 2014, Martin launched a campaign on Prizeo to raise funds for Wild Spirit Wolf Sanctuary and the Food Depot of Santa Fe. As part of the campaign, Martin offered one donor the chance to accompany him on a trip to the wolf sanctuary, including a helicopter ride and dinner. Martin also offered those donating $20,000 or more the opportunity to have a character named after them and "killed off" in an upcoming A Song of Ice and Fire novel. The campaign garnered media attention and raised a total of $502,549. In 2017, Martin announced that he was funding The Miskatonic Scholarship. The Miskatonic Scholarship allows a writer of Lovecraftian cosmic horror to attend the Odyssey Writing Workshop, a six-week writing workshop held at Saint Anselm College in Manchester, New Hampshire. Growing up, Martin avoided the draft to the Vietnam War by being a conscientious objector and did two years of alternative service. He generally opposes war and thought the Vietnam War was a "terrible mistake for America". While he did not endorse Barack Obama in 2008, Martin endorsed him for re-election in 2012 calling Obama the most intelligent president since Jimmy Carter. In 2014, Martin endorsed Democratic Senator Tom Udall of New Mexico. In the midst of pressure to pull the 2014 feature film The Interview from theaters, the Jean Cocteau Cinema in Santa Fe, New Mexico, which has been owned by Martin since 2013, decided to show the film. Theater manager Jon Bowman told the Santa Fe New Mexican, "Martin feels strongly about the First Amendment and the idea of artists having the ability to speak their minds and not having to worry about being targets." Immediately following Bernie Sanders' defeat in the U.S. Democratic primary elections, he supported Democratic nominee Hillary Clinton in the general 2016 United States presidential election, and criticized Donald Trump during the election and following her defeat, commenting that Trump would "become the worst president in American history". In response to fans of Martin who compared Trump favorably to characters from A Song of Ice and Fire, Martin doubled-down on his criticism of Trump by making the case to his fans that Trump shares many personality traits in common with King Joffrey, a near-universally hated character from the series, concluding that "Trump is a Grown-Up Joffrey." In May 2019, Martin endorsed Joe Biden for president in 2020. A Song of Ice and Fire universe: Stand-alones: Collections: Uncollected short stories:
[ { "paragraph_id": 0, "text": "George Raymond Richard Martin (born George Raymond Martin; September 20, 1948), also known as GRRM, is an American novelist, screenwriter, television producer and short story writer. He is the author of the series of epic fantasy novels A Song of Ice and Fire, which were adapted into the Emmy Award-winning HBO series Game of Thrones (2011–2019) and its prequel series House of the Dragon (2022–present). He also helped create the Wild Cards anthology series, and contributed worldbuilding for the 2022 video game Elden Ring.", "title": "" }, { "paragraph_id": 1, "text": "In 2005, Lev Grossman of Time called Martin \"the American Tolkien\", and in 2011, he was included on the annual Time 100 list of the most influential people in the world. He is a longtime citizen of Santa Fe, New Mexico, where he helped fund Meow Wolf and owns the Jean Cocteau Cinema. The city commemorates March 29 as George R. R. Martin Day.", "title": "" }, { "paragraph_id": 2, "text": "George Raymond Martin (he adopted the confirmation name Richard at 13 years old) was born on September 20, 1948, in Bayonne, New Jersey, the son of longshoreman Raymond Collins Martin and Margaret Brady Martin. His mother's family had once been wealthy, owning a successful construction business, but lost it all in the Great Depression, something Martin was reminded about every day when he passed what used to be his family's dock and house. He has two younger sisters, Darleen and Jane. He is predominantly of Irish descent; a DNA test on the series Finding Your Roots showed him to be 53.6% \"British and Irish\", 22.4% Ashkenazi Jewish, and 15.6% \"Broadly Northwestern European\".", "title": "Early life" }, { "paragraph_id": 3, "text": "The family first lived in a house on Broadway belonging to Martin's great-grandmother. In 1953, they moved to a federal housing project near the Bayonne docks. During Martin's childhood, his world consisted predominantly of \"First Street to Fifth Street\", between his grade school and his home. This limited world made him want to travel and experience other places, but the only way of doing so was through his imagination, and he became a voracious reader.", "title": "Early life" }, { "paragraph_id": 4, "text": "Martin began writing and selling monster stories for pennies to other neighborhood children, dramatic readings included. He had to stop once a customer's mother complained about her child's nightmares. He also wrote stories about a mythical kingdom populated by his pet turtles — the turtles died frequently in their toy castle, so he decided they were killing each other off in \"sinister plots\". Martin had a habit of starting \"endless stories\" that he never completed, as they did not turn out as well on paper as he had imagined them.", "title": "Early life" }, { "paragraph_id": 5, "text": "Martin attended Mary Jane Donohoe School and later Marist High School. While there, he became an avid comic-book fan, developing a strong interest in the superheroes being published by Marvel Comics, and later credited Stan Lee for being one of his greatest literary influences; \"Maybe Stan Lee is the greatest literary influence on me, even more than Shakespeare or Tolkien.\" A letter Martin wrote to the editor of Fantastic Four was printed in issue #20 (November 1963); it was the first of many sent, e.g., Fantastic Four #32, #34, and others. Fans who read his letters wrote him letters in turn, and through such contacts, Martin joined the fledgling comics fandom of the era, writing fiction for various fanzines; he bought the first ticket to the world's first Comic-Con, held in New York in 1964. In 1965, Martin won comic fandom's Alley Award for Best Fan Fiction for his prose superhero story \"Powerman vs. The Blue Barrier\".", "title": "Early life" }, { "paragraph_id": 6, "text": "In 1970, Martin earned a B.S. in journalism with a minor in history from Northwestern University's Medill School of Journalism in Evanston, Illinois, graduating summa cum laude; he went on to complete his M.S. in Journalism in 1971, also from Medill. Eligible for the draft during the Vietnam War, to which he objected, Martin applied for and obtained conscientious objector status; he instead did alternative service work for two years (1972–1974) as a VISTA volunteer, attached to the Cook County Legal Assistance Foundation.", "title": "Early life" }, { "paragraph_id": 7, "text": "Martin began selling science fiction short stories professionally in 1970, at age 21. His first sale was \"The Hero\", sold to Galaxy magazine and published in its February 1971 issue; other sales soon followed. His first story to be nominated for the Hugo Award and Nebula Awards was \"With Morning Comes Mistfall\", published in 1973 in Analog magazine. In 1975 his story \"...for a single yesterday\" about a post-apocalyptic timetripper was selected for inclusion in Epoch, a science fiction anthology edited by Roger Elwood and Robert Silverberg. His first novel, Dying of the Light, was completed in 1976 right before he moved to Dubuque and published in 1977. That same year the enormous success of Star Wars had a huge impact on the publishing industry and science fiction, and he sold the novel for the same amount he would make in three years of teaching.", "title": "Career" }, { "paragraph_id": 8, "text": "The short stories he was able to sell in his early 20s gave him some profit but not enough to pay his bills, which prevented him from becoming the full-time writer he wanted to be. The need for a day job occurred simultaneously with the American chess craze which followed Bobby Fischer's victory in the 1972 world chess championship. Martin's own chess skills and experience allowed him to be hired as a tournament director for the Continental Chess Association, which ran chess tournaments on the weekends. This gave him a sufficient income, and because the tournaments only ran on Saturdays and Sundays, it allowed him to work as a writer five days a week from 1973 to 1976. By the time the chess bubble subsequently burst and no longer provided an income, he had become much better established as a writer.", "title": "Career" }, { "paragraph_id": 9, "text": "In the mid-1970s, Martin met English professor George Guthridge from Dubuque, Iowa, at a science fiction convention in Milwaukee. Martin persuaded Guthridge (who later said that at that time he despised science fiction and fantasy) not only to give speculative fiction a second look, but also to write in the field himself. Guthridge has since been a finalist for the Hugo Award and twice for the Nebula Award for science fiction and fantasy. In 1998, Guthridge and Janet Berliner won the Bram Stoker Award for Superior Achievement in the Novel for their Children of the Dusk.", "title": "Career" }, { "paragraph_id": 10, "text": "In turn, Guthridge helped Martin in finding a job at Clarke University (then Clarke College). Martin \"wasn't making enough money to stay alive\" from writing and the chess tournaments, says Guthridge. From 1976 to 1978, Martin was an English and journalism instructor at Clarke, and he became Writer In Residence at the college from 1978 to 1979.", "title": "Career" }, { "paragraph_id": 11, "text": "While he enjoyed teaching, the sudden death of friend and fellow author Tom Reamy in late 1977 made Martin reevaluate his own life, and he eventually decided to try to become a full-time writer. In 1979 he resigned from his job and moved from Dubuque to Santa Fe, New Mexico at the end of the year. There he would live alone for almost three years, a period he described as tremendously productive in regard of writing.", "title": "Career" }, { "paragraph_id": 12, "text": "Martin is a member of the Science Fiction and Fantasy Writers of America (SFWA); he served as the organization's Southwest Regional Director from 1977 to 1979, and as its vice-president from 1996 to 1998. In 1976, for Kansas City's MidAmeriCon, the 34th World Science Fiction Convention (Worldcon), Martin and his friend and fellow writer-editor Gardner Dozois conceived of and organized the first Hugo Losers' Party for the benefit of all past and present Hugo-losing writers on the evening following the convention's Hugo Awards ceremony. Martin was nominated for two Hugos that year but lost both awards, for the novelette \"...and Seven Times Never Kill Man\" and the novella The Storms of Windhaven, co-written with Lisa Tuttle. Although Martin often writes fantasy or horror, a number of his earlier works are science fiction tales occurring in a loosely defined future history, known informally as \"The Thousand Worlds\" or \"The Manrealm\".", "title": "Career" }, { "paragraph_id": 13, "text": "In 2017, Martin recalled that he had started writing science fiction-horror hybrids in the late 1970s to disprove a statement from a critic claiming that science fiction and horror were opposites and therefore incompatible. Martin considered Sandkings (1979) the best known of these. Another was the novella Nightflyers (1980), whose screen and television rights were purchased by Vista in 1984, which produced a 1987 film adaptation, Nightflyers, with a screenplay co-written by Martin. Martin was unhappy about having to cut plot elements in order to accommodate the film's small budget. While not a hit at theatres, Martin believes that the film saved his career, and that everything he has written since exists in large part because of it. He has also written at least one piece of political-military fiction, \"Night of the Vampyres\", collected in Harry Turtledove's anthology The Best Military Science Fiction of the 20th Century (2001).", "title": "Career" }, { "paragraph_id": 14, "text": "In 1982, Martin published a vampire novel titled Fevre Dream set in the 19th century on the Mississippi River. Unlike traditional vampire novels, in Fevre Dream vampires are not supernatural creatures, but are rather a different species related to humans created by evolution with superhuman powers. Critic Don D'Amassa has praised Fevre Dream for its strong 19th century atmosphere and wrote: \"This is without question one of the greatest vampire novels of all time\". Martin followed up Fevre Dream with another horror novel, The Armageddon Rag (1983). The unexpected commercial failure of The Armageddon Rag \"essentially destroyed my career as a novelist at the time\", he recalled, and made him consider going into real estate instead.", "title": "Career" }, { "paragraph_id": 15, "text": "In 1984, the new editor of Baen Books, Betsy Mitchell, called Martin to ask him if he had considered doing a collection of Haviland Tuf adventures. Martin, who had several favorite series characters like Solomon Kane, Elric, Nicholas van Rijn and Magnus Ridolph, had made an attempt to create such a character on his own in the 1970s with his Tuf stories. He was interested, but was too occupied with the writing of his next book, the never-completed novel Black and White and Red All Over, which occupied most of his writing time the same year. But after the failure of The Armageddon Rag, all editors rejected his upcoming novel, and desperate for money, he accepted Mitchell's offer and wrote some more Tuf stories which were collected in Tuf Voyaging, which sold well enough for Mitchell to suggest a sequel. Martin was willing and agreed to do it, but before he got started he got an offer from Hollywood, where producer Philip DeGuere Jr. wanted to adapt The Armageddon Rag into a film. The film adaptation did not happen, but they stayed in touch, and when DeGuere became the producer for the revival of The Twilight Zone, Martin was offered a job as a writer. Working for television paid a lot better than writing literature, so he decided to move to Hollywood to seek a new career. At first he worked as staff writer for the show, and then as an executive story consultant.", "title": "Career" }, { "paragraph_id": 16, "text": "After the CBS series was cancelled, Martin migrated over to the already-underway satirical science fiction series Max Headroom. He worked on scripts and created the show's \"Ped Xing\" character. However, before his scripts could go into production, the ABC show was cancelled in the middle of its second season. Martin was hired as a writer-producer on the new dramatic fantasy series Beauty and the Beast; in 1989, he became the show's co-supervising producer and wrote 14 of its episodes.", "title": "Career" }, { "paragraph_id": 17, "text": "In 1987, Martin published a collection of short horror stories in Portraits of His Children. During this same period, Martin continued working in print media as a book-series editor, this time overseeing the development of the multi-author Wild Cards book series, which takes place in a shared universe in which a small slice of post–World War II humanity gains superpowers after the release of an alien-engineered virus; new titles are published in the ongoing series from Tor Books. In Second Person, Martin \"gives a personal account of the close-knit role-playing game (RPG) culture that gave rise to his Wild Cards shared-world anthologies\". An important element in the creation of the multiple author series was a campaign of Chaosium's role-playing game Superworld (1983) that Martin ran in Albuquerque. Admitting he became completely obsessed with the game, he stopped writing literature for most of 1983, which he refers to as his \"lost year\", but his shrinking bank accounts made him realize he had to come up with something, and got the idea that perhaps the stories and characters created in Superworld could somehow become profitable. Martin's own contributions to Wild Cards have included Thomas Tudbury, \"The Great and Powerful Turtle\", a powerful psychokinetic whose flying \"shell\" consisted of an armored VW Beetle. As of June 2011, 21 Wild Cards volumes had been published in the series; earlier that same year, Martin signed the contract for the 22nd volume, Low Ball (2014), published by Tor Books. In early 2012, Martin signed another Tor contract for the 23rd Wild Cards volume, High Stakes, which was released in August 2016.", "title": "Career" }, { "paragraph_id": 18, "text": "In August 2016, Martin announced that Universal Cable Productions had acquired the rights to adapt the Wild Cards novels into a television series. He noted that he himself would not write for the adaptation due to focusing on A Song of Ice and Fire.", "title": "Career" }, { "paragraph_id": 19, "text": "In 1991, Martin briefly returned to writing novels. He had grown frustrated that his TV pilots and screenplays were not getting made and that TV-related production limitations like budgets and episode lengths were forcing him to cut characters and trim battle scenes. This pushed Martin back towards writing books, where he did not have to worry about compromising his imagination. Admiring the works of J. R. R. Tolkien in his childhood, he wanted to write an epic fantasy, though he did not have any specific ideas.", "title": "Career" }, { "paragraph_id": 20, "text": "His epic fantasy series, A Song of Ice and Fire, was inspired by the Wars of the Roses, The Accursed Kings and Ivanhoe. Though Martin originally conceptualized it as being three volumes, it is currently slated to comprise seven. The first, A Game of Thrones, was published in 1996, followed by A Clash of Kings in 1998 and A Storm of Swords in 2000. In November 2005, A Feast for Crows, the fourth novel in this series, became The New York Times No. 1 Bestseller. The fifth book, A Dance with Dragons, was published July 12, 2011, and became an international bestseller, including achieving a No. 1 spot on the New York Times Bestseller List and many others; it remained on the New York Times list for 88 weeks.", "title": "Career" }, { "paragraph_id": 21, "text": "In 2012, A Dance With Dragons made the final ballot for science fiction and fantasy's Hugo Award, World Fantasy Award, Locus Poll Award, and the British Fantasy Award; the novel went on to win the Locus Poll Award for Best Fantasy Novel. Two more novels are planned in the series: The Winds of Winter and the final volume A Dream of Spring.", "title": "Career" }, { "paragraph_id": 22, "text": "On April 25, 2018, Martin announced the release date of his new book, Fire & Blood, dealing with the history of House Targaryen, which was released on November 20, 2018. Should Martin die before finishing the A Song of Ice and Fire series, former collaborators have said that they will not conclude the series for him.", "title": "Career" }, { "paragraph_id": 23, "text": "HBO Productions purchased the television rights for the A Song of Ice and Fire series in 2007. Although busy completing A Dance With Dragons and other projects, George R. R. Martin was heavily involved in the production of the television series adaptation of his books. Martin's involvement included the selection of a production team and participation in scriptwriting; the opening credits list him as a co-executive producer of the series. The original pilot was shot between October 24 and November 19, 2009, on location in Northern Ireland, Scotland and Morocco. It was received so poorly by HBO executives that they did not make a decision for four months after the pilot was delivered. In March 2010, HBO's decision to greenlight the series was announced, with the production of the series scheduled to start June 2010. HBO however demanded the first episode be reshot, and wanted all the scenes from Morocco scrapped. The first episode (\"Winter Is Coming\") premiered on HBO in the United States and Canada on April 17, 2011. It was seen initially by 2.2 million viewers. The first season was nominated for 13 Emmy Awards, ultimately winning two: one for its opening title credits, and one for Peter Dinklage as Best Supporting Actor.", "title": "Career" }, { "paragraph_id": 24, "text": "HBO ordered a second season of Game of Thrones on April 19, 2011, two days after the series premiere. The second season obtained a 15% increase in budget in order to be able to stage the war's most important battle, the Battle of the Blackwater, in episode nine which was written by George R. R. Martin. Filming took place during 106 shooting days. During three-quarters of those, two crews (\"Dragon\" and \"Wolf\") were working simultaneously in different locations. Alan Taylor was promoted to co-executive producer and directed four episodes, including the season premiere and finale. David Petrarca and David Nutter each directed two episodes, while series cinematographer Alik Sakharov and filmmaker Neil Marshall directed the remaining two. The second season premiered in the United States on HBO on April 1, 2012, and concluded on June 3, 2012. U.S. viewership rose by approximately 8% over the course of the season, from 3.9 million to 4.2 million by the season finale. The second season won six of the twelve Emmy Awards for which it was nominated.", "title": "Career" }, { "paragraph_id": 25, "text": "Game of Thrones rapidly became a critical and commercial success after the second season. HBO renewed the series for a third season on April 10, 2012, nine days after the second season's premiere. Production began in July 2012 and concluded with the wrap of the unit filming in Iceland on November 24, 2012. The third season is based on the first half of the novel A Storm of Swords. Benioff had previously said that A Storm of Swords would need to be adapted in two seasons on account of its length. Benioff and Weiss also noted that they thought of Game of Thrones as an adaptation of the series as a whole, rather than of individual novels, which gave them the liberty to move scenes back and forth across novels according to the requirements of the screen adaptation. Season 3 saw the first significant use of the Valyrian languages, spoken in doomed Valyria and its former colonies in Essos. The constructed languages were developed by linguist David J. Peterson based on the few words Martin invented for the novels. Peterson had previously developed the Dothraki language, used principally in season 1. The third season premiered on HBO on March 31, 2013, and concluded on June 9, 2013. The third season was seen by 14.2 million viewers. It won 2 of the 16 Emmy Awards for which it was nominated.", "title": "Career" }, { "paragraph_id": 26, "text": "Two days after third season premiere, HBO ordered the fourth season on April 2, 2013, which began filming in July 2013. The season is adapted primarily from the second half of A Storm of Swords, along with elements of A Feast for Crows and A Dance with Dragons. Showrunners David Benioff and D. B. Weiss co-wrote seven out of ten episodes. The remaining three episodes were written by Bryan Cogman (two episodes), and George R. R. Martin (one episode). For this season, the filming lasted 136 days and was completed on November 21, 2013. The fourth season premiered in the United States on HBO on April 6, 2014, and concluded on June 15, 2014. The season was met with largely positive reviews. It won 4 of the 19 Emmy Awards for which it was nominated. With its fourth season, Game of Thrones has become the most-watched HBO series in history (surpassing the fourth season of The Sopranos which had a gross audience of 18.2 million viewers), averaging 18.4 million viewers across multiple platforms, including live viewing, encores, DVR views, HBO GO and On Demand views.", "title": "Career" }, { "paragraph_id": 27, "text": "Up until the fourth season, Martin wrote one episode for each season. In 2022, Martin said that he had been estranged from the show during the production process of the last 4 seasons (starting with season 5). In the early seasons, Martin wrote and read scripts, consulted on casting decisions and visited sets. Over time, however, as he stepped back to focus on his long-delayed next “Thrones” novel, \"The Winds of Winter\". Following the gargantuan success of the fourth season, HBO ordered the fifth season on April 8, 2014, together with the sixth season, which began filming in July 2014. The season primarily adapts the storylines from A Feast for Crows and A Dance with Dragons, also with original content not found in Martin's novels. This season set a Guinness World Record for winning the highest number of Emmy Awards for a series in a single season and year, winning 12 out of 24 nominations, including Outstanding Drama Series.", "title": "Career" }, { "paragraph_id": 28, "text": "With a budget over $100 million for the whole season, filming for the sixth season began in July 2015 and ended on December. The season filmed in five different countries: Northern Ireland, Spain, Croatia, Iceland, and Canada. This season saw the overall plot of the show diverging from the source material. Some of the season's storyline is derived from content not yet published in Martin's A Song of Ice and Fire series, although a significant amount of material from A Feast for Crows, A Dance with Dragons and the upcoming sixth novel The Winds of Winter, which Martin previously outlined to showrunners David Benioff and D.B. Weiss, was used. The season was largely met with positive reviews. The \"Battle of the Bastards\" episode received immense critical acclaim, with many calling it one of the best television episodes of all time. U.S. viewership rose compared to the previous season, and by approximately 13 percent over its course, from 7.9 million to 8.9 million by the finale. The season won 12 of the 23 Emmy Awards for which it was nominated.", "title": "Career" }, { "paragraph_id": 29, "text": "Three days before the premiere of the episode \"The Red Woman\", HBO ordered the seventh season. Due to necessary weather conditions required for filming, the production of the penultimate season of the show was delayed that year. Filming began only on August 31, 2016, at Titanic Studios in Belfast, and ended in February 2017. Unlike previous seasons, the seventh and eighth seasons largely consisted of original content not found in the source material. This season comprised only seven episodes. The showrunners stated that they were unable to produce 10 episodes in the show's usual 12 to 14 month time frame, as Weiss said \"It's crossing out of a television schedule into more of a mid-range movie schedule\". The average runtime of an episode in this season was approximately 63 minutes. The series received 22 nominations for the 70th Primetime Emmy Awards and won 9 of them, including \"Outstanding Drama Series\".", "title": "Career" }, { "paragraph_id": 30, "text": "Unlike its prior seasons, the final one took a year gap for its production and filming. The eighth season consisted of only six episodes, though the average runtime of an episode was 68 minutes, the longest of all seasons, with \"The Long Night\" consisting of 81 minutes. The season was met with mixed reviews from critics, with the performances, production values and music score were praised, criticism was mainly directed at the shorter runtime of the season as well as numerous creative decisions made by the showrunners. Many commentators deemed it to be a disappointing conclusion to the series. The season received 32 nominations at the 71st Primetime Emmy Awards, the most for a single season of television in history. It won twelve, including Outstanding Drama Series and Outstanding Supporting Actor in a Drama Series for Peter Dinklage.", "title": "Career" }, { "paragraph_id": 31, "text": "Three years after the show ended, a prequel series, House of the Dragon, premiered on HBO in August 21, 2022. Based on parts of the novel Fire & Blood, the series is set about 200 years before the events of Game of Thrones. Ryan Condal and Miguel Sapochnik served as the showrunners for the first season. Five days after its premiere, the series was renewed for a second season by HBO. On September 1, Sapochnik departed as showrunner, with another veteran Game of Thrones director Alan Taylor replacing him as the co-showrunner for the upcoming second season.", "title": "Career" }, { "paragraph_id": 32, "text": "In June 2022, it was reported that a Jon Snow sequel series with Kit Harington to reprise his role was in early development at HBO. The working title is Snow and Martin confirmed his involvement with the project and that Harington initiated the idea. Also in June, Martin said there were still three other live-action series in development: 10,000 Ships (written by Amanda Segal), 9 Voyages aka Sea Snake (written by Bruno Heller), and the Dunk & Egg prequel series (written by Steven Conrad), tentatively titled either The Hedge Knight or Knight of the Seven Kingdoms.", "title": "Career" }, { "paragraph_id": 33, "text": "In January 2021, an animated drama series was announced as in development at HBO Max. In July 2021, two more animated series were in development at HBO Max, with one being set in Yi Ti, a nation in Essos loosely based on Imperial China.", "title": "Career" }, { "paragraph_id": 34, "text": "Martin's work has been described as having \"complex story lines, fascinating characters, great dialogue, perfect pacing\" by literary critic Jeff VanderMeer. Dana Jennings of the New York Times described Martin's work as \"fantasy for grown ups\" and Lev Grossman wrote that it was dark and cynical. Martin's first novel, Dying of the Light, set the tone for some of his future work; it unfolds on a mostly abandoned planet that is slowly becoming uninhabitable as it moves away from its sun. This story has a strong sense of melancholy. His characters are often unhappy or, at least, unsatisfied, in many cases holding on to idealisms in spite of an otherwise chaotic and ruthless world, and often troubled by their own self-seeking or violent actions, even as they undertake them. Many have elements of tragic heroes or antiheroes in them; reviewer T. M. Wagner writes: \"Let it never be said Martin doesn't share Shakespeare's fondness for the senselessly tragic.\"", "title": "Career" }, { "paragraph_id": 35, "text": "The overall gloominess of A Song of Ice and Fire can be an obstacle for some readers; the Inchoatus Group writes that, \"If this absence of joy is going to trouble you, or you're looking for something more affirming, then you should probably seek elsewhere.\" However, for many fans, it is precisely this level of \"realness\" and \"completeness\"–including many characters' imperfections, moral and ethical ambiguity, and (often sudden) consequential plot twists that is endearing about Martin's work. Many find that this is what makes the series' story arcs compelling enough to keep following despite its sheer brutality and intricately messy and interwoven plotlines; as TM Wagner points out:", "title": "Career" }, { "paragraph_id": 36, "text": "There's great tragedy here, but there's also excitement, humor, heroism even in weaklings, nobility even in villains, and, now and then, a taste of justice after all. It's a rare gift when a writer can invest his story with that much humanity.", "title": "Career" }, { "paragraph_id": 37, "text": "Martin's characters are multifaceted, each with intricate pasts, aspirations, and ambitions. Publishers Weekly writes of his ongoing epic fantasy A Song of Ice and Fire: \"The complexity of characters such as Daenerys, Arya and the Kingslayer will keep readers turning even the vast number of pages contained in this volume, for the author, like Tolkien or Jordan, makes us care about their fates.\" Misfortune, injury, and death (including false death and reanimation) often befall major or minor characters, no matter how attached the reader has become. Martin has described his penchant for killing off important characters as being necessary for the story's depth: \"when my characters are in danger, I want you to be afraid to turn the page, (so) you need to show right from the beginning that you're playing for keeps\".", "title": "Career" }, { "paragraph_id": 38, "text": "In distinguishing his work from others, Martin makes a point of emphasizing realism and plausible social dynamics above an over-reliance on magic and a simplistic \"good versus evil\" dichotomy, for which contemporary fantasy writing is often criticized. Notably, Martin's work makes a sharp departure from the prevalent \"heroic knights and chivalry\" schema that has become a mainstay in fantasy as derived from J. R. R. Tolkien's The Lord of the Rings. He specifically critiques the oversimplification of Tolkien's themes and devices by imitators in ways that he has humorously described as \"Disneyland Middle Ages\", which gloss over or ignore major differences between medieval and modern societies, particularly social structures, ways of living, and political arrangements. Martin has been described as \"the American Tolkien\" by literary critics. While Martin finds inspiration in Tolkien's legacy, he aims to go beyond what he sees as Tolkien's \"medieval philosophy\" of \"if the king was a good man, the land would prosper\" to delve into the complexities, ambiguities, and vagaries of real-life power: \"We look at real history and it's not that simple... Just having good intentions doesn't make you a wise king.\" Per this fact Martin has been credited with the rise of grimdark fantasy, a modern form of an \"anti-Tolkien\" approach to fantasy writing which, according to British science fiction and fantasy novelist Adam Roberts, is characterized by its reaction to Tolkien's idealism even though it owes a lot to Tolkien's work. The Canadian fantasy writer R. Scott Bakker \"says he wouldn't have been able to publish his fantasy novels without the success George R. R. Martin achieved first\". Similarly, Mark Lawrence, author of Prince of Thorns, was inspired by Martin and impressed by his Red Wedding scene.", "title": "Career" }, { "paragraph_id": 39, "text": "The author makes a point of grounding his work on a foundation of historical fiction, which he channels to evoke important social and political elements of primarily the European medieval era that differ markedly from elements of modern times, including the multigenerational, rigid, and often brutally consequential nature of the hierarchical class system of feudal societies that is in many cases overlooked in fantasy writing. Even as A Song of Ice and Fire is a fantasy series that employs magic and the surreal as central to the genre, Martin is keen to ensure that magic is merely one element of many that moves his work forward, not a generic deus ex machina that is itself the focus of his stories, which is something he has been very conscious about since reading Tolkien; \"If you look at The Lord of the Rings, what strikes you, it certainly struck me, is that although the world is infused with this great sense of magic, there is very little onstage magic. So you have a sense of magic, but it's kept under very tight control, and I really took that to heart when I was starting my own series.\" Martin's ultimate aim is an exploration of the internal conflicts that define the human condition, which, in deriving inspiration from William Faulkner, he ultimately describes as the only reason to read any literature, regardless of genre.", "title": "Career" }, { "paragraph_id": 40, "text": "In 2018, Martin called The Lord of the Rings, The Great Gatsby, Gone with the Wind, Great Expectations, Lonesome Dove, Catch-22, and Charlotte's Web \"favorites all, towering masterpieces, books that changed my life\".", "title": "Career" }, { "paragraph_id": 41, "text": "In 2017, Martin confirmed he would serve as an executive producer of the HBO television series adaptation of the 2010 science fantasy novel Who Fears Death by Nnedi Okorafor. Martin also contributed to the 2022 video game titled Elden Ring, writing the worldbuilding aspects for it. In February 2021, it was reported that Martin and Kalinda Vazquez were developing a TV adaptation of Roadmarks by Roger Zelazny, which Martin pitched to HBO in 2020. Martin will be an executive producer, Vazquez the showrunner, writer and executive producer. In March 2021, he signed an overall deal with HBO. Martin will serve as an executive producer of the Peacock TV adaptation in development of his Wild Cards book series, together with Melinda M. Snodgrass and Vince Gerardis, Martin's manager. He will serve as an executive producer of the 2022 AMC series Dark Winds based on Tony Hillerman's Leaphorn & Chee books, together with the creator Graham Roland, the showrunner Vince Calandra, the lead Zahn McClarnon, Kiowa Gordon, Chris Eyre, Robert Redford, Tina Elmo and Vince Gerardis. In 2021, Martin served as one of the producers of the short film Night of the Cooters based on the eponymous short story by Howard Waldrop.", "title": "Producing" }, { "paragraph_id": 42, "text": "Martin actively contributes to his blog, Not a Blog; in April 2018, he moved his blog from Livejournal to his own website.", "title": "Relationship with fans" }, { "paragraph_id": 43, "text": "Martin's official fan club is the \"Brotherhood Without Banners\", which has a regular posting board at the Forum of the website westeros.org, which is focused on his A Song of Ice and Fire fantasy series. At the annual World Science Fiction Convention every year, the Brotherhood Without Banners hosts a large, on-going hospitality suite that is open to all members of the Worldcon.", "title": "Relationship with fans" }, { "paragraph_id": 44, "text": "Martin is opposed to fan fiction, which he views as copyright infringement and a bad exercise for aspiring writers in terms of developing skills in worldbuilding and character development.", "title": "Relationship with fans" }, { "paragraph_id": 45, "text": "Martin is known for his regular attendance at science fiction conventions and comics conventions, and his accessibility to fans. In the early 1980s, critic and writer Thomas Disch identified Martin as a member of the \"Labor Day Group\", writers who regularly congregated at the annual Worldcon, usually held on or around the Labor Day weekend. Since the early 1970s, he has also attended regional science fiction conventions; further, since 1986, Martin has participated annually in Albuquerque's smaller regional convention Bubonicon, near his New Mexico home. He was the Guest of Honor at the 61st World Science Fiction Convention in Toronto, held in 2003.", "title": "Relationship with fans" }, { "paragraph_id": 46, "text": "In December 2016, Martin was a key speaker at the Guadalajara International Book Fair 2016 in Mexico where the author provided hints about the next two books in the series A Song of Ice and Fire.", "title": "Relationship with fans" }, { "paragraph_id": 47, "text": "In 2020, Martin fulfilled his duties as “toastmaster” of the Hugo Awards. During the event, he mispronounced several names, including that of R. F. Kuang, which she considered a microaggression. Martin later apologized for mispronouncing the names.", "title": "Relationship with fans" }, { "paragraph_id": 48, "text": "Martin has been criticized by some of his readers for the long periods between books in the A Song of Ice and Fire series, notably the six-year gap between the fourth volume, A Feast for Crows (2005), and the fifth volume, A Dance with Dragons (2011). In 2010, Martin had responded to fan criticisms by saying he was unwilling to write only his A Song of Ice and Fire series, noting that working on other prose and compiling and editing different book projects have always been part of his working process.", "title": "Relationship with fans" }, { "paragraph_id": 49, "text": "In the early 1970s, Martin was in a relationship with fellow science fiction/fantasy author Lisa Tuttle, with whom he co-wrote Windhaven.", "title": "Personal life" }, { "paragraph_id": 50, "text": "While attending an East Coast science fiction convention he met his first wife, Gale Burnick; they were married in 1975 and moved from their Chicago apartment and into a house in Dubuque in 1976. Both of them grew tired of the hard winters there, and when she graduated from Clarke in June 1979, he resigned from his job and they decided to move to New Mexico. The year before they had \"fallen in love\" with Santa Fe on their way to the worldcon in Phoenix. His wife went down and bought a house while Martin stayed behind to sell their home and finish the semester. The marriage ended in divorce in 1979, before they could be reunited in Santa Fe. Instead he settled there alone from December that same year until September 1981, when what would be his longtime partner Parris McBride moved in with him. On February 15, 2011, Martin married McBride during a small ceremony at their Santa Fe home. On August 19, 2011, they held a larger wedding ceremony and reception at Renovation, the 69th World Science Fiction Convention.", "title": "Personal life" }, { "paragraph_id": 51, "text": "He and McBride are supporters of the Wild Spirit Wolf Sanctuary in New Mexico. In early 2013, he purchased Santa Fe's Jean Cocteau Cinema and Coffee House, which had been closed since 2006. He had the property completely restored, including both its original 35mm capability to which was added digital projection and sound; the Cocteau officially reopened for business on August 9, 2013. In 2019, he opened a bookstore named Beastly Books, after Beauty and the Beast, next to Jean Cocteau. Martin has also supported Meow Wolf, an arts collective in Santa Fe, having pledged $2.7 million toward a new art space in January 2015.", "title": "Personal life" }, { "paragraph_id": 52, "text": "In response to a question on his religious views, Martin replied: \"I suppose I'm a lapsed Catholic. You would consider me an atheist or agnostic. I find religion and spirituality fascinating. I would like to believe this isn't the end and there's something more, but I can't convince the rational part of me that makes any sense whatsoever.\"", "title": "Personal life" }, { "paragraph_id": 53, "text": "Martin is a fan of the New York Jets, the New York Giants and the New York Mets. He is also a fan of the Grateful Dead, and says that the band's music may have influenced his work.", "title": "Personal life" }, { "paragraph_id": 54, "text": "Martin made a guest appearance as himself in an episode, \"El Skeletorito\", of the Adult Swim show Robot Chicken. He also appeared in SyFy's Z Nation as a zombie version of himself in season two's \"The Collector\", where he is still signing copies of his new novel. In Sharknado 3: Oh Hell No!, he is killed when watching a movie at the theatre.", "title": "Personal life" }, { "paragraph_id": 55, "text": "In 2014, Martin launched a campaign on Prizeo to raise funds for Wild Spirit Wolf Sanctuary and the Food Depot of Santa Fe. As part of the campaign, Martin offered one donor the chance to accompany him on a trip to the wolf sanctuary, including a helicopter ride and dinner. Martin also offered those donating $20,000 or more the opportunity to have a character named after them and \"killed off\" in an upcoming A Song of Ice and Fire novel. The campaign garnered media attention and raised a total of $502,549.", "title": "Philanthropy" }, { "paragraph_id": 56, "text": "In 2017, Martin announced that he was funding The Miskatonic Scholarship. The Miskatonic Scholarship allows a writer of Lovecraftian cosmic horror to attend the Odyssey Writing Workshop, a six-week writing workshop held at Saint Anselm College in Manchester, New Hampshire.", "title": "Philanthropy" }, { "paragraph_id": 57, "text": "Growing up, Martin avoided the draft to the Vietnam War by being a conscientious objector and did two years of alternative service. He generally opposes war and thought the Vietnam War was a \"terrible mistake for America\".", "title": "Politics" }, { "paragraph_id": 58, "text": "While he did not endorse Barack Obama in 2008, Martin endorsed him for re-election in 2012 calling Obama the most intelligent president since Jimmy Carter. In 2014, Martin endorsed Democratic Senator Tom Udall of New Mexico.", "title": "Politics" }, { "paragraph_id": 59, "text": "In the midst of pressure to pull the 2014 feature film The Interview from theaters, the Jean Cocteau Cinema in Santa Fe, New Mexico, which has been owned by Martin since 2013, decided to show the film. Theater manager Jon Bowman told the Santa Fe New Mexican, \"Martin feels strongly about the First Amendment and the idea of artists having the ability to speak their minds and not having to worry about being targets.\"", "title": "Politics" }, { "paragraph_id": 60, "text": "Immediately following Bernie Sanders' defeat in the U.S. Democratic primary elections, he supported Democratic nominee Hillary Clinton in the general 2016 United States presidential election, and criticized Donald Trump during the election and following her defeat, commenting that Trump would \"become the worst president in American history\". In response to fans of Martin who compared Trump favorably to characters from A Song of Ice and Fire, Martin doubled-down on his criticism of Trump by making the case to his fans that Trump shares many personality traits in common with King Joffrey, a near-universally hated character from the series, concluding that \"Trump is a Grown-Up Joffrey.\"", "title": "Politics" }, { "paragraph_id": 61, "text": "In May 2019, Martin endorsed Joe Biden for president in 2020.", "title": "Politics" }, { "paragraph_id": 62, "text": "A Song of Ice and Fire universe:", "title": "Bibliography" }, { "paragraph_id": 63, "text": "Stand-alones:", "title": "Bibliography" }, { "paragraph_id": 64, "text": "Collections:", "title": "Bibliography" }, { "paragraph_id": 65, "text": "Uncollected short stories:", "title": "Bibliography" } ]
George Raymond Richard Martin, also known as GRRM, is an American novelist, screenwriter, television producer and short story writer. He is the author of the series of epic fantasy novels A Song of Ice and Fire, which were adapted into the Emmy Award-winning HBO series Game of Thrones (2011–2019) and its prequel series House of the Dragon (2022–present). He also helped create the Wild Cards anthology series, and contributed worldbuilding for the 2022 video game Elden Ring. In 2005, Lev Grossman of Time called Martin "the American Tolkien", and in 2011, he was included on the annual Time 100 list of the most influential people in the world. He is a longtime citizen of Santa Fe, New Mexico, where he helped fund Meow Wolf and owns the Jean Cocteau Cinema. The city commemorates March 29 as George R. R. Martin Day.
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https://en.wikipedia.org/wiki/George_R._R._Martin
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A Song of Ice and Fire
A Song of Ice and Fire is a series of epic fantasy novels by the American novelist and screenwriter George R. R. Martin. He began writing the first volume, A Game of Thrones, in 1991, publishing it in 1996. Martin originally envisioned the series as a trilogy but has released five out of a planned seven volumes. The fifth and most recent entry in the series, A Dance with Dragons, was published in 2011. Martin continues to write the sixth novel, titled The Winds of Winter. A seventh novel, A Dream of Spring, is planned to follow. A Song of Ice and Fire depicts a violent world dominated by political realism. What little supernatural power that remains is confined to the margins of the known world. Moral ambiguity pervades the books and their stories continually raise questions concerning loyalty, pride, human sexuality, piety, and the morality of violence. The novels are set on the fictional continents of Westeros and Essos. The story unfolds through a rotating set of subjective points of view, the success or survival of any one of which is never assured. Each chapter is told from a limited third-person perspective, drawn from a group of characters that grows from nine in the first novel to 31 by the fifth. The work as a whole consists of three interwoven plots: Martin's stated inspirations for the series include the Wars of the Roses and The Accursed Kings, a series of French historical novels by Maurice Druon. As of 2023 more than 90 million copies in 47 languages had been sold. The fourth and fifth volumes both reached the top of the New York Times Best Seller lists when published in 2005 and 2011. Among the many derived works number several prequel novellas, two series for television, a comic book adaptation, and several card, board, and video games. A Song of Ice and Fire takes place in a fictional world in which seasons last for years and end unpredictably. Nearly three centuries before the events of the first novel, the Seven Kingdoms of Westeros were united under the Targaryen dynasty, establishing military supremacy through their control of dragons. The Targaryens ruled for three hundred years, continuing beyond the extinction of the dragons. Their dynasty eventually ended with a rebellion led by Lord Robert Baratheon, in which Aerys "the Mad King" Targaryen was killed and Robert proclaimed king of the Seven Kingdoms. At the beginning of A Game of Thrones, 15 years have passed since Robert's rebellion, with a nine-year-long summer coming to an end. The principal story chronicles the power struggle for the Iron Throne among the great Houses of Westeros following the death of King Robert in A Game of Thrones. Robert's heir apparent, the 13-year-old Joffrey, is immediately proclaimed king through the machinations of his mother, Queen Cersei Lannister. When Lord Eddard "Ned" Stark, Robert's closest friend and chief advisor, discovers that Joffrey and his siblings are the product of incest between Cersei and her twin brother Ser Jaime Lannister, Eddard attempts to unseat Joffrey, but is betrayed and executed for treason. In response, Robert's brothers Stannis and Renly lay separate claims to the throne. During this period of instability, two of the Seven Kingdoms of Westeros attempt to become independent from the Iron Throne: Eddard's eldest son Robb is proclaimed King in the North, while Lord Balon Greyjoy desires to recover the sovereignty of his region, the Iron Islands. The so-called "War of the Five Kings" is in full progress by the middle of the second book, A Clash of Kings. The second part of the story takes place in the far north of Westeros, where an 8,000-year-old wall of ice, simply called "the Wall", defends the Seven Kingdoms from supernatural creatures known as the Others. The Wall's sentinels, the Sworn Brotherhood of the Night's Watch, also protect the realm from incursions by the "wildlings" or "Free Folk", a number of human tribes living on the north side of the Wall. The Night's Watch story is told primarily through the point of view of Jon Snow, Lord Eddard Stark's bastard son. Jon follows the footsteps of his uncle Benjen Stark and joins the Watch at a young age, rising quickly through the ranks. He eventually becomes Lord Commander of the Night's Watch. In the third volume, A Storm of Swords, the Night's Watch storyline becomes increasingly entangled with the War of the Five Kings. The third storyline follows Daenerys Targaryen, daughter of Aerys II, the last Targaryen king. On the continent of Essos, east of Westeros across the Narrow Sea, Daenerys is married off by her elder brother Viserys Targaryen to a powerful warlord, but slowly becomes an independent and intelligent ruler in her own right. Her rise to power is aided by the historic birth of three dragons, hatched from eggs given to her as wedding gifts. The three dragons soon become not only a symbol of her bloodline and her claim to the throne, but also devastating weapons of war, which help her in the conquest of Slaver's Bay. The story follows her year-long conflict with the region's city states, in which she aims to consolidate power, disrupt the Essosi slave trade, and gather support for her ambitions to reclaim Westeros. Books in the A Song of Ice and Fire series are first published in hardcover and are later re-released as paperback editions. In the UK, Harper Voyager publishes special slipcased editions. The series has also been translated into more than 30 languages. All page totals given below are for the US first editions. George R. R. Martin was already a successful fantasy and sci-fi author and TV writer before writing his A Song of Ice and Fire book series. Martin had published his first short story in 1971 and his first novel in 1977. By the mid-1990s, he had won three Hugo Awards, two Nebula Awards, and other awards for his short fiction. Although his early books were well-received within the fantasy fiction community, his readership remained relatively small and Martin took on jobs as a writer in Hollywood in the mid-1980s. He worked principally on the revival of The Twilight Zone throughout 1986 and on Beauty and the Beast until 1990, but he also developed his own TV pilots and wrote feature film scripts. He grew frustrated that his pilots and screenplays were not getting made and that TV-related production limitations like budgets and episode lengths were forcing him to cut characters and trim battle scenes. This pushed Martin back towards writing books, where he did not have to worry about compromising the size of his imagination. Admiring the works of J. R. R. Tolkien in his childhood, he wanted to write an epic fantasy, though he did not have any specific ideas. When Martin was between Hollywood projects in the summer of 1991, he started writing a new science fiction novel called Avalon. After three chapters, he had a vivid idea of a boy seeing a man's beheading and finding direwolves in the snow, which would eventually become the first non-prologue chapter of A Game of Thrones. Putting Avalon aside, Martin finished this chapter in a few days and grew certain that it was part of a longer story. After a few more chapters, Martin perceived his new book as a fantasy story and started making maps and genealogies. However, the writing of this book was interrupted for a few years when Martin returned to Hollywood to produce his TV series Doorways that ABC had ordered but ultimately never aired. "The first scene...chapter one of the first book, the chapter where they find the direwolf pups...just came to me out of nowhere. I was...at work on a different novel, and suddenly I saw that scene. It didn't belong in the novel I was writing, but it came to me so vividly that I had to sit down and write it, and by the time I did, it led to a second chapter, and the second chapter was the Catelyn chapter where Ned has just come back." —George R. R. Martin in 2014 In 1994, Martin gave his agent, Kirby McCauley, the first 200 pages and a two-page story projection as part of a planned trilogy with the novels A Dance with Dragons and The Winds of Winter intended to follow. When Martin had still not reached the novel's end at 1,400 manuscript pages, he felt that the series needed to be four and eventually six books long, which he imagined as two linked trilogies of one long story. Martin chose A Song of Ice and Fire as the overall series title: Martin saw the struggle of the cold Others and the fiery dragons as one possible meaning for "Ice and Fire", whereas the word "song" had previously appeared in Martin's book titles A Song for Lya and Songs the Dead Men Sing, stemming from his obsessions with songs. Martin also named Robert Frost's 1920 poem "Fire and Ice" and cultural associations such as passion versus betrayal as possible influences for the series' title. The revised finished manuscript for A Game of Thrones was 1,088 pages long (without the appendices), with the publication following in August 1996. The Wheel of Time author Robert Jordan had written a short endorsement for the cover that was influential in ensuring the book's and hence series' early success with fantasy readers. Blood of the Dragon, a pre-release sample novella drawn from Daenerys's chapters, went on to win the 1997 Hugo Award for Best Novella. The first book was marketed as part of the "Song of Ice and Fire trilogy" in 1996, but by the second book's release, the "trilogy" suffix had been dropped and the series was retitled to A Song of Ice and Fire. The 300 pages removed from the A Game of Thrones manuscript served as the opening of the second book, entitled A Clash of Kings. It was released in February 1999 in the United States, with a manuscript length (without appendices) of 1,184 pages. A Clash of Kings was the first book of the A Song of Ice and Fire series to make the best-seller lists, reaching 13 on The New York Times Best Seller list in 1999. After the success of The Lord of the Rings films, Martin received his first inquiries to the rights of the A Song of Ice and Fire series from various producers and filmmakers. Martin was several months late turning in the third book, A Storm of Swords. The last chapter he had written was about the "Red Wedding", a pivotal scene notable for its violence (see Themes: Violence and death). A Storm of Swords was 1,521 pages in manuscript (without appendices), causing problems for many of Martin's publishers around the world. Bantam Books published A Storm of Swords in a single volume in the United States in November 2000, whereas some other-language editions were divided into two, three, or even four volumes. A Storm of Swords debuted at number 12 in the New York Times bestseller list. After A Game of Thrones, A Clash of Kings, and A Storm of Swords, Martin originally intended to write three more books. The fourth book, tentatively titled A Dance with Dragons, was to focus on Daenerys Targaryen's return to Westeros and the associated conflicts. Martin wanted to set this story five years after A Storm of Swords so that the younger characters could grow older and the dragons grow larger. Agreeing with his publishers early on that the new book should be shorter than A Storm of Swords, Martin set out to write the novel closer in length to A Clash of Kings. A long prologue was to establish what had happened in the meantime, initially just as one chapter of Aeron Damphair on the Iron Islands at the Kingsmoot. Since the events on the Iron Islands were to have an impact in the book and could not be told with existing POV characters, Martin eventually introduced three new viewpoints. In 2001, Martin was still optimistic that the fourth installment might be released in the last quarter of 2002. However, the five-year gap did not work for all characters during writing. On one hand, Martin was unsatisfied with covering the events during the gap solely through flashbacks and internal retrospection. On the other hand, it was implausible to have nothing happen for five years. After working on the book for about a year, Martin realized he needed an additional interim book, which he called A Feast for Crows. The book would pick up the story immediately after the third book, and Martin scrapped the idea of a five-year gap. The material of the written 250-page prologue was mixed in as new viewpoint characters from Dorne and the Iron Islands. These expanded storylines and the resulting story interactions complicated the plot for Martin. The manuscript length of A Feast for Crows eventually surpassed A Storm of Swords. Martin was reluctant to make the necessary deep cuts to get the book down to publishable length, as that would have compromised the story he had in mind. Printing the book in "microtype on onion skin paper and giving each reader a magnifying glass" was also not an option for him. On the other hand, Martin rejected the publishers' idea of splitting the narrative chronologically into A Feast for Crows, Parts One and Two. Being already late with the book, Martin had not even started writing all characters' stories, and also objected to ending the first book without any resolution for its many viewpoint characters as in previous books. With the characters spread out across the world, a friend suggested that Martin divide the story geographically into two volumes, of which A Feast for Crows would be the first. This approach would give Martin the room to complete his commenced story arcs as he had originally intended, which he still felt was the best approach years later. Martin moved the unfinished characters' stories set in the east (Essos) and north (Winterfell and the Wall) into the next book, A Dance with Dragons, and left A Feast for Crows to cover the events in King's Landing, the Riverlands, Dorne, and the Iron Islands. Both books begin immediately after the end of A Storm of Swords, running in parallel instead of sequentially, and involve different casts of characters with only little overlap. Martin split Arya's chapters into both books after having already moved the three other most popular characters (Jon Snow, Tyrion, and Daenerys) into A Dance with Dragons. Upon its release in October 2005 in the UK and November 2005 in the US, A Feast for Crows went straight to the top of The New York Times bestseller list. Among the positive reviewers was Lev Grossman of Time, who dubbed Martin "the American Tolkien". However, fans and critics alike were disappointed with the story split that left the fates of several popular characters unresolved after A Storm of Swords' cliffhanger ending. With A Dance with Dragons said to be half-finished, Martin mentioned in the epilogue of A Feast for Crows that the next volume would be released by the next year. However, planned release dates were repeatedly pushed back. Meanwhile, HBO acquired the rights to turn A Song of Ice and Fire into a fantasy drama series in 2007 and aired the first of ten episodes covering A Game of Thrones in April 2011. With around 1600 pages in manuscript length, A Dance with Dragons was eventually published in July 2011 after six years of writing, longer in page count and writing time than any of the preceding four novels. The story of A Dance with Dragons catches up with and goes beyond A Feast for Crows around two-thirds into the book, but nevertheless covers less story than Martin had intended, omitting at least one planned large battle sequence and leaving several character threads ending in cliff-hangers. Martin attributed the delay mainly to his untangling "the Meereenese knot", which the interviewer understood as "making the chronology and characters mesh up as various threads converged on [Daenerys]". Martin also acknowledged spending too much time on rewriting and perfecting the story, but soundly rejected the theories of some of his critics that he had lost interest in the series or would bide his time to make more money. Martin believes the last two volumes of the series will be large books of 1500 manuscript pages each. The sixth book will be called The Winds of Winter, taking the title of the last book of the originally planned trilogy. Displeased with the provisional title A Time for Wolves for the final volume, Martin ultimately announced A Dream of Spring as the title for the seventh book in 2006. Martin said in March 2012 that the final two novels will take readers farther north than any of the previous books, and that the Others will appear. Martin indicated he would not permit another writer to finish the book series. The Winds of Winter will resolve the cliffhangers from A Dance with Dragons early on and "will open with the two big battles that [the fifth book] was building up to, the battle in the ice and the battle [...] of Slaver's Bay. And then take it from there." By the middle of 2010, Martin had already finished five chapters of The Winds of Winter from the viewpoints of Sansa Stark, Arya Stark, Arianne Martell, and Aeron Greyjoy, coming to around 100 completed pages. After the publication of A Dance with Dragons in 2011, Martin announced he would return to writing in January 2012. He spent the meantime on book tours, conventions, and continued working on his The World of Ice & Fire companion guide and a new Tales of Dunk and Egg novella. In December 2011, Martin posted a chapter from The Winds of Winter from the viewpoint of Theon Greyjoy; several other chapters have been made public since. Four hundred pages of the sixth novel had been written as of October 2012, although Martin considered only 200 as "really finished"; the rest needed revising. During the Guadalajara International Book Fair in Mexico in early December 2016, Martin offered the following hint as to the tone of this book: "There are a lot of dark chapters right now ... I've been telling you for 20 years that winter was coming. Winter is the time when things die, and cold and ice and darkness fill the world, so this is not going to be the happy feel-good that people may be hoping for. Some of the characters [are] in very dark places." Martin did not intend to separate the characters geographically again. In 2011, Martin gave three years as a realistic estimate for finishing the sixth book at a good pace, but said ultimately the book "will be done when it's done", acknowledging that his publication estimates had been too optimistic in the past. In 2015 there were indications that the book would be published before the sixth season of the HBO show but in early January 2016 Martin confirmed that he had not met an end-of-year deadline that he had established with his publisher for release of the book before the sixth season. He also revealed there had been a previous deadline of October 2015 that he had considered achievable in May 2015, and that in September 2015 he had still considered the end-of-year deadline achievable. He further confirmed that some of the plot of the book might be revealed in the upcoming season of Game of Thrones. In February 2016, Martin stated that he dropped all his editing projects except for Wild Cards, and that he would not be writing any teleplays, screenplays, short stories, introductions or forewords before delivering The Winds of Winter. In March 2020, Martin stated that he was writing The Winds of Winter every day, and in June he hoped to be done with it in 2021. In October 2022, Martin said that he had written approximately three quarters of the book. Martin is only firm about ending the series with the seventh novel "until I decide not to be firm". With his stated goal of telling the story from beginning to end, he will not truncate the story to fit into an arbitrary number of volumes. He knows the ending in broad strokes as well as the future of the main characters, and will finish the series with bittersweet elements where not everyone will live happily ever after. Martin hopes to write an ending similar to The Lord of the Rings that he felt gave the story a satisfying depth and resonance. On the other hand, Martin noted the challenge to avoid a situation like the finale of the TV series Lost, which left some fans disappointed by deviating too far from their own theories and desires. In 2012, Martin had acknowledged his concerns about A Dream of Spring not being completed by the time the TV series Game of Thrones catches up in its storyline to the novels. In 2015, Martin said that he was not writing A Dream of Spring together with The Winds of Winter, and in early 2016, he said he did not believe A Dream of Spring would be published before the last season of the HBO show. In April 2018, Martin commented he had not started working on the book, and in November he said that after The Winds of Winter he would decide what to do next: A Dream of Spring or the second volume of Fire & Blood or one or two stories for the Tales of Dunk and Egg. In May 2019, he reiterated he had not started writing A Dream of Spring and would not do so before finishing The Winds of Winter. During a question-and-answer session at the 2016 Guadalajara International Book Fair, Martin said, "I'm not going to tell you how I'm going to end my book, but I suspect the overall flavor is going to be as much bittersweet as it is happy." Regarding A Song of Ice and Fire as his masterpiece, Martin stated he would never write anything on this scale again and would only return to this fictional universe in the context of stand-alone novels. He prefers to write stories about characters from other A Song of Ice and Fire periods of history such as his Tales of Dunk and Egg project, instead of continuing the series directly. Martin said he would love to return to writing short stories, novellas, novelettes, and stand-alone novels from diverse genres such as science fiction, horror, fantasy, or even a murder mystery. "[Martin's Ice and Fire series] was groundbreaking (at least for me) in all kinds of ways. Above all, the books were extremely unpredictable, especially in a genre where readers have come to expect the intensely predictable. [...] A Game of Thrones was profoundly shocking when I first read it, and fundamentally changed my notions about what could be done with epic fantasy." —Fantasy writer Joe Abercrombie in 2008 George R. R. Martin believes the most profound influences to be the ones experienced in childhood. Having read H. P. Lovecraft, Robert E. Howard, Robert A. Heinlein, Eric Frank Russell, Andre Norton, Isaac Asimov, Fritz Leiber, and Mervyn Peake in his youth, Martin never categorized these authors' literature into science fiction, fantasy, or horror and will write from any genre as a result. Martin classified A Song of Ice and Fire as "epic fantasy", and specifically named Tad Williams' high fantasy epic Memory, Sorrow, and Thorn as very influential for the writing of the series. One of his favorite authors is Jack Vance, although Martin considered the series not particularly Vancean. Martin experienced some harsh winters when living in Dubuque a few years in the 1970s, and suspects these winters had an influence on his writing; "I think a lot of the stuff in A Game of Thrones, the snow and ice and freezing, comes from my memories of Dubuque". The medieval setting has been the traditional background for epic fantasy. However, where historical fiction leaves versed readers knowing the historical outcome, original characters may increase suspense and empathy for the readers. Yet Martin felt historical fiction, particularly when set during the Middle Ages, had an excitement, grittiness, and a realness to it that was absent in fantasy with a similar backdrop. Thus, he wanted to combine the realism of historical fiction with the magic appeal of the best fantasies, subduing magic in favor of battles and political intrigue. He also decided to avoid the conventional good versus evil setting typical for the genre, using the fight between Achilles and Hector in Homer's Iliad, where no one stands out as either a hero or a villain, as an example of what he wants to achieve with his books. Martin is widely credited with broadening the fantasy fiction genre for adult content. Writing for The Atlantic, Amber Taylor assessed the novels as hard fantasy with vulnerable characters to which readers become emotionally attached. CNN found in 2000 that Martin's mature descriptions were "far more frank than those found in the works of other fantasy authors", although Martin assessed the fantasy genre to have become rougher-edged a decade later and that some writers' work was going beyond the mature themes of his novels. Adam Roberts called Martin's series the most successful and popular example of the emerging subgenre of grimdark fantasy. Setting out to write something on an epic scale, Martin projected to write three books of 800 manuscript pages in the very early stages of the series. His original 1990s contract specified one-year deadlines for his previous literary works, but Martin only realized later that his new books were longer and hence required more writing time. In 2000, Martin planned to take 18 months to two years for each volume and projected the last of the planned six books to be released five or six years later. However, with A Song of Ice and Fire series evolving into the biggest and most ambitious story he has ever attempted writing, he still has two more books to finish as of 2022. Martin said he needed to be in his own office in Santa Fe, New Mexico to immerse himself in the fictional world and write. As of 2011, Martin was still typing his fiction on an IBM PC compatible computer running MS-DOS with WordStar 4.0. He begins each day at 10 am with rewriting and polishing the previous day's work, and may write all day or struggle to write anything. Excised material and previous old versions are saved to be possibly re-inserted at a later time. Martin does not consider A Song of Ice and Fire a "series" but a single story published in several volumes. Martin set the A Song of Ice and Fire story in a secondary world inspired by Tolkien's writing. Unlike Tolkien, who created entire languages, mythologies, and histories for Middle-earth long before writing The Lord of the Rings, Martin usually starts with a rough sketch of an imaginary world that he improvises into a workable fictional setting along the way. He described his writing as coming from a subconscious level in "almost a daydreaming process", and his stories, which have a mythic rather than a scientific core, draw from emotion instead of rationality. Martin employs maps and a cast list topping 60 pages in the fourth volume, but keeps most information in his mind. His imagined backstory remains subject to change until published, and only the novels count as canon. Martin does not intend to publish his private notes after the series is finished. Martin drew much inspiration from actual history for the series, having several bookcases filled with medieval history for research and visiting historic European landmarks. For an American who speaks only English, the history of England proved the easiest source of medieval history for him, giving the series a British rather than a German or Spanish historic flavor. For example, Ned and Robb Stark resemble Richard, 3rd Duke of York, and his son Edward IV, and Queen Cersei resembles both Margaret of Anjou and Elizabeth Woodville. Martin immersed himself in many diverse medieval topics such as clothing, food, feasting, and tournaments to have the facts at hand if needed during writing. The series was in particular influenced by the Hundred Years' War, the Crusades, the Albigensian Crusade, and the Wars of the Roses, although Martin refrained from making any direct adaptations. Martin was also inspired by the French historical novels The Accursed Kings by Maurice Druon, which are about the French monarchy in the 13th and 14th centuries. Martin has also said that important events of the narrative are based on events in Scottish history such as the Black Dinner of 1440 and the Massacre of Glencoe in 1692. Martin has also drawn from Roman history for inspiration, comparing Stannis Baratheon to the Roman emperor Tiberius. Martin has sourced the Massacre of Glencoe and Black Dinner as inspiration for the "Red Wedding", a crucial twist in A Storm of Swords. The story is written to follow principal landmarks with an ultimate destination, but leaves Martin room for improvisation. On occasion, improvised details significantly affected the planned story. By the fourth book, Martin kept more private notes than ever before to keep track of the many subplots, which became so detailed and sprawling by the fifth book as to be unwieldy. Martin's editors, copy editors, and readers monitor for accidental mistakes, although some errors have slipped into publication. For instance, Martin has inconsistently referred to certain characters' eye colors, and has described a horse as being of one sex and then another. The books are divided into chapters, each one narrated in the third person limited through the eyes of a point of view character, an approach Martin learned himself as a young journalism student. Beginning with nine POV characters in A Game of Thrones, the number of POV characters grows to a total of 31 in A Dance with Dragons (see table). The short-lived one-time POV characters are mostly restricted to the prologues and epilogues. David Orr of The New York Times noted the story importance of "the Starks (good guys), the Targaryens (at least one good guy, or girl), the Lannisters (conniving), the Greyjoys (mostly conniving), the Baratheons (mixed bag), the Tyrells (unclear), and the Martells (ditto), most of whom are feverishly endeavoring to advance their ambitions and ruin their enemies, preferably unto death". However, as Time's Lev Grossman noted, readers "experience the struggle for Westeros from all sides at once", such that "every fight is both triumph and tragedy [...] and everybody is both hero and villain at the same time". Modeled on The Lord of the Rings, the story of A Song of Ice and Fire begins with a tight focus on a small group (with everyone in Winterfell, except Daenerys) and then splits into separate stories. The storylines are to converge again, but finding the turning point in this complex series has been difficult for Martin and has slowed down his writing. Depending on the interview, Martin is said to have reached the turning point in A Dance with Dragons, or to not quite have reached it yet in the books. The series' structure of multiple POVs and interwoven storylines was inspired by Wild Cards, a multi-authored shared universe book series edited by Martin since 1985. As the sole author, Martin begins each new book with an outline of the chapter order and may write a few successive chapters from a single character's viewpoint instead of working chronologically. The chapters are later rearranged to optimize character intercutting, chronology, and suspense. Influenced by his television and film scripting background, Martin tries to keep readers engrossed by ending each A Song of Ice and Fire chapter with a tense or revelational moment, a twist or a cliffhanger, similar to a TV act break. Scriptwriting has also taught him the technique of "cutting out the fat and leaving the muscle", which is the final stage of completing a book, a technique that brought the page count in A Dance with Dragons down almost eighty pages. Dividing the continuous A Song of Ice and Fire story into books is much harder for Martin. Each book shall represent a phase of the journey that ends in closure for most characters. A smaller portion of characters is left with clear-cut cliffhangers to make sure readers come back for the next installment, although A Dance with Dragons had more cliffhangers than Martin originally intended. Both one-time and regular POV characters are designed to have full character arcs ending in tragedy or triumph, and are written to hold the readers' interest and not be skipped in reading. Main characters are killed off so that the reader will not rely on the hero to come through unscathed and will instead feel the character's fear with each page turn. The unresolved larger narrative arc encourages speculation about future story events. According to Martin, much of the key to A Song of Ice and Fire's future lies over a dozen years in the fictional past, of which each volume reveals more. Events planned from the beginning are foreshadowed, although Martin is careful not to make the story predictable. The viewpoint characters, who serve as unreliable narrators, may clarify or provide different perspectives on past events. Therefore, what the readers believe to be true may not necessarily be true. Regarding the characters as the heart of the story, Martin planned the epic A Song of Ice and Fire to have a large cast of characters and many different settings from the beginning. A Feast for Crows has a 63-page list of characters, with many of the thousands of characters mentioned only in passing or disappearing from view for long stretches. When Martin adds a new family to the ever-growing number of genealogies in the appendices, he devises a secret about the personality or fate of the family members. However, their backstory remains subject to change until written down in the story. Martin drew most character inspiration from history (without directly translating historical figures) and his own experiences, but also from the manners of his friends, acquaintances, and people of public interest. Martin aims to "make my characters real and to make them human, characters who have good and bad, noble and selfish well-mixed in their natures". Jeff VanderMeer of the Los Angeles Times remarked that "Martin's devotion to fully inhabiting his characters, for better or worse, creates the unstoppable momentum in his novels and contains an implied criticism of Tolkien's moral simplicity" (see Themes: Moral ambiguity). Martin deliberately ignored the writing rule of never giving two characters names starting with the same letter. Instead, character names reflect the naming systems in various European family histories, where particular names were associated with specific royal houses and where even the secondary families assigned the same names repeatedly. The story of A Song of Ice and Fire therefore has children called "Robert" in honor of King Robert of House Baratheon, a "Brandon" in every other generation of the Starks in commemoration of Brandon the Builder (of the Wall), and the syllable "Ty" commonly occurring in given names of House Lannister. Confident that readers would pay attention, Martin distinguished people sharing a given name by adding numbers or locations to their given names (e.g. Henry V of England). The family names were designed in association with ethnic groups (see backstory): the First Men in the North of Westeros had very simply descriptive names like Stark and Strong, whereas the descendants of the Andal invaders in the South have more elaborate, undescriptive house names like Lannister or Arryn, and the Targaryens and Valyrians from the Eastern continent have the most exotic names with the letter Y. All characters are designed to speak with their own internal voices to capture their views of the world. The Atlantic pondered whether Martin ultimately intended the readers to sympathize with characters on both sides of the Lannister–Stark feud long before plot developments force them to make their emotional choices. Contrary to most conventional epic fantasies, the characters of A Song of Ice and Fire are vulnerable so that, according to The Atlantic, the reader "cannot be sure that good shall triumph, which makes those instances where it does all the more exulting." Martin gets emotionally involved in the characters' lives during writing, which makes the chapters with dreadful events sometimes very difficult to write. Seeing the world through the characters' eyes requires a certain amount of empathy with them, including the villains, all of whom he has said he loves as if they were his own children. Martin found that some characters had minds of their own and took his writing in different directions. He returns to the intended story if it does not work out, but these detours sometimes prove more rewarding for him. Arya Stark, Tyrion Lannister, Jon Snow, and Daenerys Targaryen generate the most feedback from readers. They are also four of the "big six" main characters of the series, according to Martin (the other two being Sansa Stark and Bran Stark). Martin has stated that Tyrion is his personal favorite, as the grayest of the gray characters, with his cunning and wit making him the most fun to write. Martin has also said that Bran Stark is the hardest character to write. As the character most deeply involved in magic, Bran's story needs to be handled carefully within the supernatural aspects of the books. Bran is also the youngest viewpoint character, and has to deal with the series' adult themes like grief, loneliness, and anger. Martin set out to have the young characters grow up faster between chapters, but, as it was implausible for a character to take two months to respond, a finished book represents very little time passed. Martin hoped the planned five-year break would ease the situation and age the children to almost adults in terms of the Seven Kingdoms, but he later dropped the five-year gap (see section Bridging the timeline gap). Modern fantasy may often embrace strangeness, but A Song of Ice and Fire series is generally praised for what is perceived as a sort of medieval realism. Believing that magic should be used moderately in the epic fantasy genre, Martin set out to make the story feel more like historical fiction than contemporary fantasy, with less emphasis on magic and sorcery and more on battles, political intrigue, and the characters. Though the amount of magic has gradually increased throughout the story, the series is still to end with less overt magic than most contemporary fantasies. In Martin's eyes, literary effective magic needs to represent strange and dangerous forces beyond human comprehension, not advanced alien technologies or formulaic spells. As such, the characters understand only the natural aspects of their world, but not the magical elements like the Others. Since Martin drew on historical sources to build the world of A Song of Ice and Fire, Damien G. Walter of The Guardian saw a strong resemblance between Westeros and England in the period of the Wars of the Roses. The Atlantic's Adam Serwer regarded A Song of Ice and Fire as "more a story of politics than one of heroism, a story about humanity wrestling with its baser obsessions than fulfilling its glorious potential", where the emergent power struggle stems from the feudal system's repression and not from the fight between good and evil. Martin not only wanted to reflect the frictions of the medieval class structures in the novels, but also explore the consequences of the leaders' decisions, as general goodness does not automatically make competent leaders and vice versa. A common theme in the fantasy genre is the battle between good and evil, which Martin rejects for not mirroring the real world. Attracted to gray characters, Martin instead endorses William Faulkner's view that only the human heart in conflict with itself was worth writing about. Martin explores the questions of redemption and character change in the A Song of Ice and Fire series. The multiple viewpoint structure allows characters to be explored from many sides, such that the supposed villains can provide their viewpoint. Although fantasy comes from an imaginative realm, Martin sees an honest necessity to reflect the real world where people, even beloved people, sometimes die ugly deaths. Main characters are killed off so that the reader will not expect the supposed hero to survive, and instead will feel the same tension and fear that the characters might. The novels also reflect the substantial death rates in war. The deaths of supernumerary extras, or of orcs or their equivalents, have no major effect on readers, whereas a friend's death has much more emotional impact. Martin prefers a hero's sacrifice to say something profound about human nature. According to Martin, the fantasy genre rarely focuses on sex and sexuality, instead often treating sexuality in a juvenile way or neglecting it completely. Martin, however, considers sexuality an important driving force in human life that should not be excluded from the narrative. Providing sensory detail for an immersive experience is more important than plot advancement for Martin, who aims to let the readers experience the novels' sex scenes, "whether it's a great transcendent, exciting, mind blowing sex, or whether it's disturbing, twisted, dark sex, or disappointing perfunctory sex." Martin was fascinated by medieval contrasts where knights venerated their ladies with poems and wore their favors in tournaments while their armies mindlessly raped women in wartime. The non-existent concept of adolescence in the Middle Ages served as a model for Daenerys' sexual activity at the age of 13 in the books. The novels also allude to the incestuous practices in the Ptolemaic dynasty of Ancient Egypt to keep their bloodlines pure. Martin provides a variety of female characters to explore the place of women in a patriarchal society. Writing all characters as human beings with the same basic needs, dreams, and influences, his female characters are to cover the same wide spectrum of human traits as the males. Science Fiction Weekly stated in 2000 that "few would dispute that Martin's most monumental achievement to date has been the groundbreaking A Song of Ice and Fire historical fantasy series", for which reviews have been "orders of magnitude better" than for his previous works, as Martin described to The New Yorker. In 2007, Weird Tales magazine described the series as a "superb fantasy saga" that "raised Martin to a whole new level of success". Shortly before the release of A Dance with Dragons in 2011, Bill Sheehan of The Washington Post was sure that "no work of fantasy has generated such anticipation since Harry Potter's final duel with Voldemort", and Ethan Sacks of Daily News saw the series turning Martin into a darling of literary critics as well as mainstream readers, which was "rare for a fantasy genre that's often dismissed as garbage not fit to line the bottom of a dragon's cage". Salon.com's Andrew Leonard stated: The success is all the more remarkable because [the series debuted] without mass market publicity or any kind of buzz in the fantasy/SF scene. George R. R. Martin earned his following the hard way, by word of mouth, by hooking his characters into the psyche of his readers to an extent that most writers of fantasy only dream of. Publishers Weekly noted in 2000 that "Martin may not rival Tolkien or Robert Jordan, but he ranks with such accomplished medievalists of fantasy as Poul Anderson and Gordon Dickson." After the fourth volume came out in 2005, Time's Lev Grossman considered Martin a "major force for evolution in fantasy" and proclaimed him "the American Tolkien", explaining that, although Martin was "[not] the best known of America's straight-up fantasy writers" at the time and would "never win a Pulitzer or a National Book Award ... his skill as a crafter of narrative exceeds that of almost any literary novelist writing today". As Grossman said in 2011, the phrase American Tolkien "has stuck to [Martin], as it was meant to", being picked up by the media including The New York Times ("He's much better than that"), the New Yorker, Entertainment Weekly ("an acclaim that borders on fantasy blasphemy"), The Globe and Mail, and USA Today. Time magazine named Martin one of the 100 most influential people in the world in 2011, and USA Today named George R.R. Martin their Author of the Year 2011. According to The Globe and Mail's John Barber, Martin manages simultaneously to master and transcend the genre so that "Critics applaud the depth of his characterizations and lack of cliché in books that are nonetheless replete with dwarves and dragons". Publishers Weekly gave favorable reviews to the first three A Song of Ice and Fire novels at their points of release, saying that A Game of Thrones had "superbly developed characters, accomplished prose and sheer bloody-mindedness", that A Clash of Kings was "notable particularly for the lived-in quality of [their fictional world and] for the comparatively modest role of magic", and that A Storm of Swords was one "of the more rewarding examples of gigantism in contemporary fantasy". However, they found that A Feast For Crows as the fourth installment "sorely misses its other half. The slim pickings here are tasty, but in no way satisfying." Their review for A Dance with Dragons repeated points of criticism for the fourth volume, and said that, although "The new volume has a similar feel to Feast", "Martin keeps it fresh by focusing on popular characters [who were] notably absent from the previous book." According to the Los Angeles Times, "Martin's brilliance in evoking atmosphere through description is an enduring hallmark of his fiction, the settings much more than just props on a painted stage", and the novels captivate readers with "complex storylines, fascinating characters, great dialogue, perfect pacing, and the willingness to kill off even his major characters". CNN remarked that "the story weaves through differing points of view in a skillful mix of observation, narration and well-crafted dialogue that illuminates both character and plot with fascinating style", and David Orr of The New York Times found that "All of his hundreds of characters have grace notes of history and personality that advance a plot line. Every town has an elaborately recalled series of triumphs and troubles." Salon.com's Andrew Leonard "couldn't stop reading Martin because my desire to know what was going to happen combined with my absolute inability to guess what would happen and left me helpless before his sorcery. At the end, I felt shaken and exhausted." The Christian Science Monitor advised reading the novels with an A Song of Ice and Fire encyclopedia at hand to "catch all the layered, subtle hints and details that [Martin] leaves throughout his books. If you pay attention, you will be rewarded and questions will be answered." Among the most critical voices were Sam Jordison and Michael Hann, both of The Guardian. Jordison detailed his misgivings about A Game of Thrones in a 2009 review and summarized "It's daft. It's unsophisticated. It's cartoonish. And yet, I couldn't stop reading .... Archaic absurdity aside, Martin's writing is excellent. His dialogue is snappy and frequently funny. His descriptive prose is immediate and atmospheric, especially when it comes to building a sense of deliciously dark foreboding [of the long impending winter]." Hann did not consider the novels to stand out from the general fantasy genre, despite Martin's alterations to fantasy convention, although he rediscovered his childhood's views: That when things are, on the whole, pretty crappy [in the real world], it's a deep joy to dive headfirst into something so completely immersive, something from which there is no need to surface from hours at a time. And if that immersion involves dragons, magic, wraiths from beyond death, shapeshifting wolves and banished princes, so be it. The reported overall sales figures of the A Song of Ice and Fire series vary. The New Yorker said in April 2011 (before the publication of A Dance with Dragons) that more than 15 million A Song of Ice and Fire books had been sold worldwide, a figure repeated by The Globe and Mail in July 2011. Reuters reported in September 2013 that the books including print, digital and audio versions have sold more than 24 million copies in North America. The Wall Street Journal reported more than six million sold copies in North America by May 2011. USA Today reported 8.5 million copies in print and digital overall in July 2011, and over 12 million sold copies in print in December 2011. The series has been translated into more than 20 languages; USA Today reported the fifth book to be translated into over 40 languages. Forbes estimated that Martin was the 12th highest-earning author worldwide in 2011 at $15 million. Martin's publishers initially expected A Game of Thrones to be a best-seller, but the first installment did not even reach any lower positions in the bestseller list. This left Martin unsurprised, as it is "a fool's game to think anything is going to be successful or to count on it". However, the book slowly won the passionate advocacy of independent booksellers and the book's popularity grew by word of mouth. The series' popularity skyrocketed in subsequent volumes, with the second and third volumes making The New York Times Best Seller lists in 1999 and 2000, respectively. The series gained Martin's old writings new attention, and Martin's American publisher Bantam Spectra was to reprint his out-of-print solo novels. The fourth installment, A Feast for Crows, was an immediate best-seller at its 2005 release, hitting number one on "The New York Times" hardcover fiction bestseller list November 27, 2005, which for a fantasy novel suggested that Martin's books were attracting mainstream readers. The paperback edition of A Game of Thrones reached its 34th printing in 2010, surpassing the one million mark. Before it even premiered, the TV series had boosted sales of the book series, with A Song of Ice and Fire approaching triple-digit growth in year-on-year sales. Bantam was looking forward to seeing the tie-ins boost sales further, and Martin's British publisher Harper Voyager expected readers to rediscover their other epic fantasy literature. With a reported 4.5 million copies of the first four volumes in print in early 2011, the four volumes re-appeared on the paperback fiction bestseller lists in the second quarter of 2011. At its point of publication in July 2011, A Dance with Dragons was in its sixth print with more than 650,000 hardbacks in print. It also had the highest single and first-day sales of any new fiction title published in 2011 at that point, with 170,000 hardcovers, 110,000 e-books, and 18,000 audio books reportedly sold on the first day. A Dance with Dragons reached the top of The New York Times bestseller list on July 31, 2011. Unlike most other big titles, the fifth volume sold more physical than digital copies early on, but nevertheless, Martin became the tenth author to sell 1 million Amazon Kindle e-books. All five volumes and the four-volume boxed set were among the top 100 best-selling books in the United States in 2011 and 2012. The TV series has contributed significantly boosting sales of both the books and collectibles like box-sets, merchandise, and other items. The TV series also contributed in increasing the geographic coverage of the books, introducing new customers in emerging countries like India and Brazil to the book series. All this has significantly increased the overall book sales. As of April 2019, the book series has sold 90 million copies worldwide. "After all, as some of you like to point out in your emails, I am sixty years old and fat, and you don't want me to 'pull a Robert Jordan' on you and deny you your book. Okay, I've got the message. You don't want me doing anything except A Song of Ice and Fire. Ever. (Well, maybe it's okay if I take a leak once in a while?)" —George R. R. Martin on his blog in 2009 During the 1980s and early 1990s, Martin's novels had slowly earned him a reputation in science fiction circles, although he said to only have received a few fans' letters a year in the pre-internet days. The publication of A Game of Thrones caused Martin's following to grow, with fan sites springing up and a Trekkie-like society of followers evolving that meet regularly. Westeros.org, one of the main A Song of Ice and Fire fansites with about seventeen thousand registered members as of 2011, was co-founded in 1999 by a Swedish-based fan of Cuban descent, Elio M. García Jr., as well as Linda Antonsson, who introduced him to the series; their involvement with Martin's work has now become semi-professional. The Brotherhood Without Banners, an unofficial fan club operating globally, was formed in 2001. Their founders and other longtime members are among Martin's good friends. Martin runs an official website and administers a lively blog with the assistance of Ty Franck. He also interacts with fandom by answering emails and letters, although he stated in 2005 that their sheer numbers might leave them unanswered for years. Since there are different types of conventions nowadays, he tends to go to three or four science-fiction conventions a year simply to go back to his roots and meet friends. He does not read message boards anymore, so that his writing will not be influenced by fans foreseeing twists and interpreting characters differently from what he intended. While Martin calls the majority of his fans "great", and enjoys interacting with them, he lost some of them because of the six years it took to release A Dance with Dragons. A movement of disaffected fans called GRRuMblers formed in 2009, creating sites such as Finish the Book, George and Is Winter Coming? When fans' vocal impatience for A Dance with Dragons peaked shortly after, Martin issued a statement called "To My Detractors" on his blog that received media attention. The New York Times noted that it was not uncommon for Martin to be mobbed at book signings. The New Yorker called this "an astonishing amount of effort to devote to denouncing the author of books one professes to love. Few contemporary authors can claim to have inspired such passion." Martin has written several prequel novellas. The Tales of Dunk and Egg series, three novellas set 90 years before the events of the novel series, feature the adventures of Ser Duncan the Tall and his squire "Egg", who later became King Aegon V Targaryen. The stories have no direct connection to the plot of A Song of Ice and Fire, although both characters are mentioned, in A Storm of Swords and A Feast for Crows respectively. The first installment, The Hedge Knight, was published in the 1998 anthology Legends. The Sworn Sword followed in 2003, published in Legends II. Both were later adapted into graphic novels. The third novella, The Mystery Knight, was first published in the 2010 anthology Warriors and in 2017 it was adapted as a graphic novel, as well. In 2015, the first three novellas were published as one illustrated collection, A Knight of the Seven Kingdoms. The novella The Princess and the Queen, or, the Blacks and the Greens appeared in Tor Books's 2013 anthology Dangerous Women and explains some of the Targaryen backstory two centuries before the events of the novels. The Rogue Prince, or, a King's Brother, published in the 2014 anthology Rogues, is itself a prequel to the events of The Princess and the Queen. The novella The Sons of the Dragon, published in the 2017 anthology The Book of Swords, is the story of Aegon the Conqueror's two sons Aenys I and Maegor I "The Cruel". All three of these stories were incorporated as parts of Fire & Blood, a book chronicling the history of the Targaryen line. Chapter sets from the novels were also compiled into three novellas that were released between 1996 and 2003 by Asimov's Science Fiction and Dragon: Fire & Blood is Martin's complete history of House Targaryen, to be released in two volumes. The first volume was released on November 20, 2018. With the popularity of the series growing, HBO optioned A Song of Ice and Fire for a television adaptation in 2007. A pilot episode was produced in late 2009, and a series commitment for nine further episodes was made in March 2010. The series, titled Game of Thrones, premiered in April 2011 to great acclaim and ratings (see Game of Thrones § Reception). The network picked up the show for a second season covering A Clash of Kings two days later. Shortly after the conclusion of the first season, the show received 13 Emmy Award nominations, including Outstanding Drama Series, winning Outstanding Main Title Design and Outstanding Supporting Actor in a Drama Series for Peter Dinklage's portrayal of Tyrion Lannister. HBO announced a renewal for a third season in April 2012, ten days after the season 2 premiere. Due to the length of the corresponding book, the third season only covered roughly the first half of A Storm of Swords. Early during the development of the TV series, Martin told major plot points to producers David Benioff and D. B. Weiss. Martin was confident he would have published at least The Winds of Winter before the TV series overtook him. Nevertheless, there were general concerns about whether Martin would be able to stay ahead of the show. As a result, head writers Benioff and Weiss learned more future plot points from Martin in 2013 to help them set up the show's new possible seasons. This included the end stories for all the core characters. Deviations from the books' storylines were considered, but a two-year hiatus to wait for new books was not an option for them (as the child actors continue to grow and the show's popularity would wane). Shortly after the season 3 premiere in March 2013, the network announced that Game of Thrones would be returning for a fourth season, which would cover the second half of A Storm of Swords along with the beginnings of A Feast for Crows and A Dance With Dragons. Game of Thrones was nominated for 15 Emmy Awards for season 3. Two days after the fourth season premiered in April 2014, HBO renewed Game of Thrones for a fifth and sixth season. Season 5 premiered on April 12, 2015, and set a Guinness World Records for winning the highest number of Emmy Awards for a series in a single season and year, winning 12 out of 24 nominations, including Outstanding Drama Series. These episodes were watched by 8 million viewers, setting a record number for the series. On January 2, 2016, Martin confirmed that the sixth volume would not be published before the start of the sixth season of the HBO series. The sixth season premiered on April 24, 2016. These episodes received the most nominations for the 68th Primetime Emmy Awards with 23, winning 12, including the award for Outstanding Drama Series. The seventh season premiered on July 16, 2017. The eighth and final season premiered on April 14, 2019. A spin-off prequel series, House of the Dragon, was later developed based on Martin's Fire & Blood. The first season premiered on August 21, 2022. A Song of Ice and Fire has spawned an industry of spin-off products. Fantasy Flight Games released a collectible card game, a board game, and two collections of artwork inspired by A Song of Ice and Fire series. Various roleplaying game products were released by Guardians of Order and Green Ronin. Dynamite Entertainment adapted A Game of Thrones into a same-titled monthly comic in 2011. Several video games are available or in production, including A Game of Thrones: Genesis (2011) and Game of Thrones (2012) by Cyanide; both received mediocre ratings from critics. A social network game titled Game of Thrones Ascent (2013) by Disruptor Beam allows players to live the life of a noble during the series' period setting. Random House released an official map book called The Lands of Ice and Fire, which includes old and new maps of the Ice and Fire world. The companion book The World of Ice & Fire by Martin and the Westeros.org owners Elio M. García Jr. and Linda Antonsson was published in October 2014. Other licensed products include full-sized weapon reproductions, a range of collectable figures, Westeros coinage reproductions, and a large number of gift and collectible items based on the HBO television series. The popularity of the HBO series has made its version of the Iron Throne an icon of the entire media franchise.
[ { "paragraph_id": 0, "text": "A Song of Ice and Fire is a series of epic fantasy novels by the American novelist and screenwriter George R. R. Martin. He began writing the first volume, A Game of Thrones, in 1991, publishing it in 1996. Martin originally envisioned the series as a trilogy but has released five out of a planned seven volumes. The fifth and most recent entry in the series, A Dance with Dragons, was published in 2011. Martin continues to write the sixth novel, titled The Winds of Winter. A seventh novel, A Dream of Spring, is planned to follow.", "title": "" }, { "paragraph_id": 1, "text": "A Song of Ice and Fire depicts a violent world dominated by political realism. What little supernatural power that remains is confined to the margins of the known world. Moral ambiguity pervades the books and their stories continually raise questions concerning loyalty, pride, human sexuality, piety, and the morality of violence.", "title": "" }, { "paragraph_id": 2, "text": "The novels are set on the fictional continents of Westeros and Essos. The story unfolds through a rotating set of subjective points of view, the success or survival of any one of which is never assured. Each chapter is told from a limited third-person perspective, drawn from a group of characters that grows from nine in the first novel to 31 by the fifth.", "title": "" }, { "paragraph_id": 3, "text": "The work as a whole consists of three interwoven plots:", "title": "" }, { "paragraph_id": 4, "text": "Martin's stated inspirations for the series include the Wars of the Roses and The Accursed Kings, a series of French historical novels by Maurice Druon.", "title": "" }, { "paragraph_id": 5, "text": "As of 2023 more than 90 million copies in 47 languages had been sold. The fourth and fifth volumes both reached the top of the New York Times Best Seller lists when published in 2005 and 2011. Among the many derived works number several prequel novellas, two series for television, a comic book adaptation, and several card, board, and video games.", "title": "" }, { "paragraph_id": 6, "text": "A Song of Ice and Fire takes place in a fictional world in which seasons last for years and end unpredictably. Nearly three centuries before the events of the first novel, the Seven Kingdoms of Westeros were united under the Targaryen dynasty, establishing military supremacy through their control of dragons. The Targaryens ruled for three hundred years, continuing beyond the extinction of the dragons. Their dynasty eventually ended with a rebellion led by Lord Robert Baratheon, in which Aerys \"the Mad King\" Targaryen was killed and Robert proclaimed king of the Seven Kingdoms. At the beginning of A Game of Thrones, 15 years have passed since Robert's rebellion, with a nine-year-long summer coming to an end.", "title": "Plot synopsis" }, { "paragraph_id": 7, "text": "The principal story chronicles the power struggle for the Iron Throne among the great Houses of Westeros following the death of King Robert in A Game of Thrones. Robert's heir apparent, the 13-year-old Joffrey, is immediately proclaimed king through the machinations of his mother, Queen Cersei Lannister. When Lord Eddard \"Ned\" Stark, Robert's closest friend and chief advisor, discovers that Joffrey and his siblings are the product of incest between Cersei and her twin brother Ser Jaime Lannister, Eddard attempts to unseat Joffrey, but is betrayed and executed for treason. In response, Robert's brothers Stannis and Renly lay separate claims to the throne. During this period of instability, two of the Seven Kingdoms of Westeros attempt to become independent from the Iron Throne: Eddard's eldest son Robb is proclaimed King in the North, while Lord Balon Greyjoy desires to recover the sovereignty of his region, the Iron Islands. The so-called \"War of the Five Kings\" is in full progress by the middle of the second book, A Clash of Kings.", "title": "Plot synopsis" }, { "paragraph_id": 8, "text": "The second part of the story takes place in the far north of Westeros, where an 8,000-year-old wall of ice, simply called \"the Wall\", defends the Seven Kingdoms from supernatural creatures known as the Others. The Wall's sentinels, the Sworn Brotherhood of the Night's Watch, also protect the realm from incursions by the \"wildlings\" or \"Free Folk\", a number of human tribes living on the north side of the Wall. The Night's Watch story is told primarily through the point of view of Jon Snow, Lord Eddard Stark's bastard son. Jon follows the footsteps of his uncle Benjen Stark and joins the Watch at a young age, rising quickly through the ranks. He eventually becomes Lord Commander of the Night's Watch. In the third volume, A Storm of Swords, the Night's Watch storyline becomes increasingly entangled with the War of the Five Kings.", "title": "Plot synopsis" }, { "paragraph_id": 9, "text": "The third storyline follows Daenerys Targaryen, daughter of Aerys II, the last Targaryen king. On the continent of Essos, east of Westeros across the Narrow Sea, Daenerys is married off by her elder brother Viserys Targaryen to a powerful warlord, but slowly becomes an independent and intelligent ruler in her own right. Her rise to power is aided by the historic birth of three dragons, hatched from eggs given to her as wedding gifts. The three dragons soon become not only a symbol of her bloodline and her claim to the throne, but also devastating weapons of war, which help her in the conquest of Slaver's Bay. The story follows her year-long conflict with the region's city states, in which she aims to consolidate power, disrupt the Essosi slave trade, and gather support for her ambitions to reclaim Westeros.", "title": "Plot synopsis" }, { "paragraph_id": 10, "text": "Books in the A Song of Ice and Fire series are first published in hardcover and are later re-released as paperback editions. In the UK, Harper Voyager publishes special slipcased editions. The series has also been translated into more than 30 languages. All page totals given below are for the US first editions.", "title": "Publishing history" }, { "paragraph_id": 11, "text": "George R. R. Martin was already a successful fantasy and sci-fi author and TV writer before writing his A Song of Ice and Fire book series. Martin had published his first short story in 1971 and his first novel in 1977. By the mid-1990s, he had won three Hugo Awards, two Nebula Awards, and other awards for his short fiction. Although his early books were well-received within the fantasy fiction community, his readership remained relatively small and Martin took on jobs as a writer in Hollywood in the mid-1980s. He worked principally on the revival of The Twilight Zone throughout 1986 and on Beauty and the Beast until 1990, but he also developed his own TV pilots and wrote feature film scripts. He grew frustrated that his pilots and screenplays were not getting made and that TV-related production limitations like budgets and episode lengths were forcing him to cut characters and trim battle scenes. This pushed Martin back towards writing books, where he did not have to worry about compromising the size of his imagination. Admiring the works of J. R. R. Tolkien in his childhood, he wanted to write an epic fantasy, though he did not have any specific ideas.", "title": "Publishing history" }, { "paragraph_id": 12, "text": "When Martin was between Hollywood projects in the summer of 1991, he started writing a new science fiction novel called Avalon. After three chapters, he had a vivid idea of a boy seeing a man's beheading and finding direwolves in the snow, which would eventually become the first non-prologue chapter of A Game of Thrones. Putting Avalon aside, Martin finished this chapter in a few days and grew certain that it was part of a longer story. After a few more chapters, Martin perceived his new book as a fantasy story and started making maps and genealogies. However, the writing of this book was interrupted for a few years when Martin returned to Hollywood to produce his TV series Doorways that ABC had ordered but ultimately never aired.", "title": "Publishing history" }, { "paragraph_id": 13, "text": "\"The first scene...chapter one of the first book, the chapter where they find the direwolf pups...just came to me out of nowhere. I was...at work on a different novel, and suddenly I saw that scene. It didn't belong in the novel I was writing, but it came to me so vividly that I had to sit down and write it, and by the time I did, it led to a second chapter, and the second chapter was the Catelyn chapter where Ned has just come back.\"", "title": "Publishing history" }, { "paragraph_id": 14, "text": "—George R. R. Martin in 2014", "title": "Publishing history" }, { "paragraph_id": 15, "text": "In 1994, Martin gave his agent, Kirby McCauley, the first 200 pages and a two-page story projection as part of a planned trilogy with the novels A Dance with Dragons and The Winds of Winter intended to follow. When Martin had still not reached the novel's end at 1,400 manuscript pages, he felt that the series needed to be four and eventually six books long, which he imagined as two linked trilogies of one long story. Martin chose A Song of Ice and Fire as the overall series title: Martin saw the struggle of the cold Others and the fiery dragons as one possible meaning for \"Ice and Fire\", whereas the word \"song\" had previously appeared in Martin's book titles A Song for Lya and Songs the Dead Men Sing, stemming from his obsessions with songs. Martin also named Robert Frost's 1920 poem \"Fire and Ice\" and cultural associations such as passion versus betrayal as possible influences for the series' title.", "title": "Publishing history" }, { "paragraph_id": 16, "text": "The revised finished manuscript for A Game of Thrones was 1,088 pages long (without the appendices), with the publication following in August 1996. The Wheel of Time author Robert Jordan had written a short endorsement for the cover that was influential in ensuring the book's and hence series' early success with fantasy readers. Blood of the Dragon, a pre-release sample novella drawn from Daenerys's chapters, went on to win the 1997 Hugo Award for Best Novella. The first book was marketed as part of the \"Song of Ice and Fire trilogy\" in 1996, but by the second book's release, the \"trilogy\" suffix had been dropped and the series was retitled to A Song of Ice and Fire.", "title": "Publishing history" }, { "paragraph_id": 17, "text": "The 300 pages removed from the A Game of Thrones manuscript served as the opening of the second book, entitled A Clash of Kings. It was released in February 1999 in the United States, with a manuscript length (without appendices) of 1,184 pages. A Clash of Kings was the first book of the A Song of Ice and Fire series to make the best-seller lists, reaching 13 on The New York Times Best Seller list in 1999. After the success of The Lord of the Rings films, Martin received his first inquiries to the rights of the A Song of Ice and Fire series from various producers and filmmakers.", "title": "Publishing history" }, { "paragraph_id": 18, "text": "Martin was several months late turning in the third book, A Storm of Swords. The last chapter he had written was about the \"Red Wedding\", a pivotal scene notable for its violence (see Themes: Violence and death). A Storm of Swords was 1,521 pages in manuscript (without appendices), causing problems for many of Martin's publishers around the world. Bantam Books published A Storm of Swords in a single volume in the United States in November 2000, whereas some other-language editions were divided into two, three, or even four volumes. A Storm of Swords debuted at number 12 in the New York Times bestseller list.", "title": "Publishing history" }, { "paragraph_id": 19, "text": "After A Game of Thrones, A Clash of Kings, and A Storm of Swords, Martin originally intended to write three more books. The fourth book, tentatively titled A Dance with Dragons, was to focus on Daenerys Targaryen's return to Westeros and the associated conflicts. Martin wanted to set this story five years after A Storm of Swords so that the younger characters could grow older and the dragons grow larger. Agreeing with his publishers early on that the new book should be shorter than A Storm of Swords, Martin set out to write the novel closer in length to A Clash of Kings. A long prologue was to establish what had happened in the meantime, initially just as one chapter of Aeron Damphair on the Iron Islands at the Kingsmoot. Since the events on the Iron Islands were to have an impact in the book and could not be told with existing POV characters, Martin eventually introduced three new viewpoints.", "title": "Publishing history" }, { "paragraph_id": 20, "text": "In 2001, Martin was still optimistic that the fourth installment might be released in the last quarter of 2002. However, the five-year gap did not work for all characters during writing. On one hand, Martin was unsatisfied with covering the events during the gap solely through flashbacks and internal retrospection. On the other hand, it was implausible to have nothing happen for five years. After working on the book for about a year, Martin realized he needed an additional interim book, which he called A Feast for Crows. The book would pick up the story immediately after the third book, and Martin scrapped the idea of a five-year gap. The material of the written 250-page prologue was mixed in as new viewpoint characters from Dorne and the Iron Islands. These expanded storylines and the resulting story interactions complicated the plot for Martin.", "title": "Publishing history" }, { "paragraph_id": 21, "text": "The manuscript length of A Feast for Crows eventually surpassed A Storm of Swords. Martin was reluctant to make the necessary deep cuts to get the book down to publishable length, as that would have compromised the story he had in mind. Printing the book in \"microtype on onion skin paper and giving each reader a magnifying glass\" was also not an option for him. On the other hand, Martin rejected the publishers' idea of splitting the narrative chronologically into A Feast for Crows, Parts One and Two. Being already late with the book, Martin had not even started writing all characters' stories, and also objected to ending the first book without any resolution for its many viewpoint characters as in previous books.", "title": "Publishing history" }, { "paragraph_id": 22, "text": "With the characters spread out across the world, a friend suggested that Martin divide the story geographically into two volumes, of which A Feast for Crows would be the first. This approach would give Martin the room to complete his commenced story arcs as he had originally intended, which he still felt was the best approach years later. Martin moved the unfinished characters' stories set in the east (Essos) and north (Winterfell and the Wall) into the next book, A Dance with Dragons, and left A Feast for Crows to cover the events in King's Landing, the Riverlands, Dorne, and the Iron Islands. Both books begin immediately after the end of A Storm of Swords, running in parallel instead of sequentially, and involve different casts of characters with only little overlap. Martin split Arya's chapters into both books after having already moved the three other most popular characters (Jon Snow, Tyrion, and Daenerys) into A Dance with Dragons.", "title": "Publishing history" }, { "paragraph_id": 23, "text": "Upon its release in October 2005 in the UK and November 2005 in the US, A Feast for Crows went straight to the top of The New York Times bestseller list. Among the positive reviewers was Lev Grossman of Time, who dubbed Martin \"the American Tolkien\". However, fans and critics alike were disappointed with the story split that left the fates of several popular characters unresolved after A Storm of Swords' cliffhanger ending. With A Dance with Dragons said to be half-finished, Martin mentioned in the epilogue of A Feast for Crows that the next volume would be released by the next year. However, planned release dates were repeatedly pushed back. Meanwhile, HBO acquired the rights to turn A Song of Ice and Fire into a fantasy drama series in 2007 and aired the first of ten episodes covering A Game of Thrones in April 2011.", "title": "Publishing history" }, { "paragraph_id": 24, "text": "With around 1600 pages in manuscript length, A Dance with Dragons was eventually published in July 2011 after six years of writing, longer in page count and writing time than any of the preceding four novels. The story of A Dance with Dragons catches up with and goes beyond A Feast for Crows around two-thirds into the book, but nevertheless covers less story than Martin had intended, omitting at least one planned large battle sequence and leaving several character threads ending in cliff-hangers. Martin attributed the delay mainly to his untangling \"the Meereenese knot\", which the interviewer understood as \"making the chronology and characters mesh up as various threads converged on [Daenerys]\". Martin also acknowledged spending too much time on rewriting and perfecting the story, but soundly rejected the theories of some of his critics that he had lost interest in the series or would bide his time to make more money.", "title": "Publishing history" }, { "paragraph_id": 25, "text": "Martin believes the last two volumes of the series will be large books of 1500 manuscript pages each. The sixth book will be called The Winds of Winter, taking the title of the last book of the originally planned trilogy. Displeased with the provisional title A Time for Wolves for the final volume, Martin ultimately announced A Dream of Spring as the title for the seventh book in 2006. Martin said in March 2012 that the final two novels will take readers farther north than any of the previous books, and that the Others will appear. Martin indicated he would not permit another writer to finish the book series.", "title": "Publishing history" }, { "paragraph_id": 26, "text": "The Winds of Winter will resolve the cliffhangers from A Dance with Dragons early on and \"will open with the two big battles that [the fifth book] was building up to, the battle in the ice and the battle [...] of Slaver's Bay. And then take it from there.\" By the middle of 2010, Martin had already finished five chapters of The Winds of Winter from the viewpoints of Sansa Stark, Arya Stark, Arianne Martell, and Aeron Greyjoy, coming to around 100 completed pages. After the publication of A Dance with Dragons in 2011, Martin announced he would return to writing in January 2012. He spent the meantime on book tours, conventions, and continued working on his The World of Ice & Fire companion guide and a new Tales of Dunk and Egg novella. In December 2011, Martin posted a chapter from The Winds of Winter from the viewpoint of Theon Greyjoy; several other chapters have been made public since. Four hundred pages of the sixth novel had been written as of October 2012, although Martin considered only 200 as \"really finished\"; the rest needed revising. During the Guadalajara International Book Fair in Mexico in early December 2016, Martin offered the following hint as to the tone of this book: \"There are a lot of dark chapters right now ... I've been telling you for 20 years that winter was coming. Winter is the time when things die, and cold and ice and darkness fill the world, so this is not going to be the happy feel-good that people may be hoping for. Some of the characters [are] in very dark places.\" Martin did not intend to separate the characters geographically again.", "title": "Publishing history" }, { "paragraph_id": 27, "text": "In 2011, Martin gave three years as a realistic estimate for finishing the sixth book at a good pace, but said ultimately the book \"will be done when it's done\", acknowledging that his publication estimates had been too optimistic in the past. In 2015 there were indications that the book would be published before the sixth season of the HBO show but in early January 2016 Martin confirmed that he had not met an end-of-year deadline that he had established with his publisher for release of the book before the sixth season. He also revealed there had been a previous deadline of October 2015 that he had considered achievable in May 2015, and that in September 2015 he had still considered the end-of-year deadline achievable. He further confirmed that some of the plot of the book might be revealed in the upcoming season of Game of Thrones. In February 2016, Martin stated that he dropped all his editing projects except for Wild Cards, and that he would not be writing any teleplays, screenplays, short stories, introductions or forewords before delivering The Winds of Winter. In March 2020, Martin stated that he was writing The Winds of Winter every day, and in June he hoped to be done with it in 2021. In October 2022, Martin said that he had written approximately three quarters of the book.", "title": "Publishing history" }, { "paragraph_id": 28, "text": "Martin is only firm about ending the series with the seventh novel \"until I decide not to be firm\". With his stated goal of telling the story from beginning to end, he will not truncate the story to fit into an arbitrary number of volumes. He knows the ending in broad strokes as well as the future of the main characters, and will finish the series with bittersweet elements where not everyone will live happily ever after. Martin hopes to write an ending similar to The Lord of the Rings that he felt gave the story a satisfying depth and resonance. On the other hand, Martin noted the challenge to avoid a situation like the finale of the TV series Lost, which left some fans disappointed by deviating too far from their own theories and desires. In 2012, Martin had acknowledged his concerns about A Dream of Spring not being completed by the time the TV series Game of Thrones catches up in its storyline to the novels. In 2015, Martin said that he was not writing A Dream of Spring together with The Winds of Winter, and in early 2016, he said he did not believe A Dream of Spring would be published before the last season of the HBO show. In April 2018, Martin commented he had not started working on the book, and in November he said that after The Winds of Winter he would decide what to do next: A Dream of Spring or the second volume of Fire & Blood or one or two stories for the Tales of Dunk and Egg. In May 2019, he reiterated he had not started writing A Dream of Spring and would not do so before finishing The Winds of Winter.", "title": "Publishing history" }, { "paragraph_id": 29, "text": "During a question-and-answer session at the 2016 Guadalajara International Book Fair, Martin said, \"I'm not going to tell you how I'm going to end my book, but I suspect the overall flavor is going to be as much bittersweet as it is happy.\"", "title": "Publishing history" }, { "paragraph_id": 30, "text": "Regarding A Song of Ice and Fire as his masterpiece, Martin stated he would never write anything on this scale again and would only return to this fictional universe in the context of stand-alone novels. He prefers to write stories about characters from other A Song of Ice and Fire periods of history such as his Tales of Dunk and Egg project, instead of continuing the series directly. Martin said he would love to return to writing short stories, novellas, novelettes, and stand-alone novels from diverse genres such as science fiction, horror, fantasy, or even a murder mystery.", "title": "Publishing history" }, { "paragraph_id": 31, "text": "\"[Martin's Ice and Fire series] was groundbreaking (at least for me) in all kinds of ways. Above all, the books were extremely unpredictable, especially in a genre where readers have come to expect the intensely predictable. [...] A Game of Thrones was profoundly shocking when I first read it, and fundamentally changed my notions about what could be done with epic fantasy.\"", "title": "Inspiration and writing" }, { "paragraph_id": 32, "text": "—Fantasy writer Joe Abercrombie in 2008", "title": "Inspiration and writing" }, { "paragraph_id": 33, "text": "George R. R. Martin believes the most profound influences to be the ones experienced in childhood. Having read H. P. Lovecraft, Robert E. Howard, Robert A. Heinlein, Eric Frank Russell, Andre Norton, Isaac Asimov, Fritz Leiber, and Mervyn Peake in his youth, Martin never categorized these authors' literature into science fiction, fantasy, or horror and will write from any genre as a result. Martin classified A Song of Ice and Fire as \"epic fantasy\", and specifically named Tad Williams' high fantasy epic Memory, Sorrow, and Thorn as very influential for the writing of the series. One of his favorite authors is Jack Vance, although Martin considered the series not particularly Vancean.", "title": "Inspiration and writing" }, { "paragraph_id": 34, "text": "Martin experienced some harsh winters when living in Dubuque a few years in the 1970s, and suspects these winters had an influence on his writing; \"I think a lot of the stuff in A Game of Thrones, the snow and ice and freezing, comes from my memories of Dubuque\".", "title": "Inspiration and writing" }, { "paragraph_id": 35, "text": "The medieval setting has been the traditional background for epic fantasy. However, where historical fiction leaves versed readers knowing the historical outcome, original characters may increase suspense and empathy for the readers. Yet Martin felt historical fiction, particularly when set during the Middle Ages, had an excitement, grittiness, and a realness to it that was absent in fantasy with a similar backdrop. Thus, he wanted to combine the realism of historical fiction with the magic appeal of the best fantasies, subduing magic in favor of battles and political intrigue. He also decided to avoid the conventional good versus evil setting typical for the genre, using the fight between Achilles and Hector in Homer's Iliad, where no one stands out as either a hero or a villain, as an example of what he wants to achieve with his books.", "title": "Inspiration and writing" }, { "paragraph_id": 36, "text": "Martin is widely credited with broadening the fantasy fiction genre for adult content. Writing for The Atlantic, Amber Taylor assessed the novels as hard fantasy with vulnerable characters to which readers become emotionally attached. CNN found in 2000 that Martin's mature descriptions were \"far more frank than those found in the works of other fantasy authors\", although Martin assessed the fantasy genre to have become rougher-edged a decade later and that some writers' work was going beyond the mature themes of his novels. Adam Roberts called Martin's series the most successful and popular example of the emerging subgenre of grimdark fantasy.", "title": "Inspiration and writing" }, { "paragraph_id": 37, "text": "Setting out to write something on an epic scale, Martin projected to write three books of 800 manuscript pages in the very early stages of the series. His original 1990s contract specified one-year deadlines for his previous literary works, but Martin only realized later that his new books were longer and hence required more writing time. In 2000, Martin planned to take 18 months to two years for each volume and projected the last of the planned six books to be released five or six years later. However, with A Song of Ice and Fire series evolving into the biggest and most ambitious story he has ever attempted writing, he still has two more books to finish as of 2022. Martin said he needed to be in his own office in Santa Fe, New Mexico to immerse himself in the fictional world and write. As of 2011, Martin was still typing his fiction on an IBM PC compatible computer running MS-DOS with WordStar 4.0. He begins each day at 10 am with rewriting and polishing the previous day's work, and may write all day or struggle to write anything. Excised material and previous old versions are saved to be possibly re-inserted at a later time. Martin does not consider A Song of Ice and Fire a \"series\" but a single story published in several volumes.", "title": "Inspiration and writing" }, { "paragraph_id": 38, "text": "Martin set the A Song of Ice and Fire story in a secondary world inspired by Tolkien's writing. Unlike Tolkien, who created entire languages, mythologies, and histories for Middle-earth long before writing The Lord of the Rings, Martin usually starts with a rough sketch of an imaginary world that he improvises into a workable fictional setting along the way. He described his writing as coming from a subconscious level in \"almost a daydreaming process\", and his stories, which have a mythic rather than a scientific core, draw from emotion instead of rationality. Martin employs maps and a cast list topping 60 pages in the fourth volume, but keeps most information in his mind. His imagined backstory remains subject to change until published, and only the novels count as canon. Martin does not intend to publish his private notes after the series is finished.", "title": "Inspiration and writing" }, { "paragraph_id": 39, "text": "Martin drew much inspiration from actual history for the series, having several bookcases filled with medieval history for research and visiting historic European landmarks. For an American who speaks only English, the history of England proved the easiest source of medieval history for him, giving the series a British rather than a German or Spanish historic flavor. For example, Ned and Robb Stark resemble Richard, 3rd Duke of York, and his son Edward IV, and Queen Cersei resembles both Margaret of Anjou and Elizabeth Woodville. Martin immersed himself in many diverse medieval topics such as clothing, food, feasting, and tournaments to have the facts at hand if needed during writing. The series was in particular influenced by the Hundred Years' War, the Crusades, the Albigensian Crusade, and the Wars of the Roses, although Martin refrained from making any direct adaptations. Martin was also inspired by the French historical novels The Accursed Kings by Maurice Druon, which are about the French monarchy in the 13th and 14th centuries. Martin has also said that important events of the narrative are based on events in Scottish history such as the Black Dinner of 1440 and the Massacre of Glencoe in 1692.", "title": "Inspiration and writing" }, { "paragraph_id": 40, "text": "Martin has also drawn from Roman history for inspiration, comparing Stannis Baratheon to the Roman emperor Tiberius. Martin has sourced the Massacre of Glencoe and Black Dinner as inspiration for the \"Red Wedding\", a crucial twist in A Storm of Swords.", "title": "Inspiration and writing" }, { "paragraph_id": 41, "text": "The story is written to follow principal landmarks with an ultimate destination, but leaves Martin room for improvisation. On occasion, improvised details significantly affected the planned story. By the fourth book, Martin kept more private notes than ever before to keep track of the many subplots, which became so detailed and sprawling by the fifth book as to be unwieldy. Martin's editors, copy editors, and readers monitor for accidental mistakes, although some errors have slipped into publication. For instance, Martin has inconsistently referred to certain characters' eye colors, and has described a horse as being of one sex and then another.", "title": "Inspiration and writing" }, { "paragraph_id": 42, "text": "The books are divided into chapters, each one narrated in the third person limited through the eyes of a point of view character, an approach Martin learned himself as a young journalism student. Beginning with nine POV characters in A Game of Thrones, the number of POV characters grows to a total of 31 in A Dance with Dragons (see table). The short-lived one-time POV characters are mostly restricted to the prologues and epilogues. David Orr of The New York Times noted the story importance of \"the Starks (good guys), the Targaryens (at least one good guy, or girl), the Lannisters (conniving), the Greyjoys (mostly conniving), the Baratheons (mixed bag), the Tyrells (unclear), and the Martells (ditto), most of whom are feverishly endeavoring to advance their ambitions and ruin their enemies, preferably unto death\". However, as Time's Lev Grossman noted, readers \"experience the struggle for Westeros from all sides at once\", such that \"every fight is both triumph and tragedy [...] and everybody is both hero and villain at the same time\".", "title": "Inspiration and writing" }, { "paragraph_id": 43, "text": "Modeled on The Lord of the Rings, the story of A Song of Ice and Fire begins with a tight focus on a small group (with everyone in Winterfell, except Daenerys) and then splits into separate stories. The storylines are to converge again, but finding the turning point in this complex series has been difficult for Martin and has slowed down his writing. Depending on the interview, Martin is said to have reached the turning point in A Dance with Dragons, or to not quite have reached it yet in the books. The series' structure of multiple POVs and interwoven storylines was inspired by Wild Cards, a multi-authored shared universe book series edited by Martin since 1985. As the sole author, Martin begins each new book with an outline of the chapter order and may write a few successive chapters from a single character's viewpoint instead of working chronologically. The chapters are later rearranged to optimize character intercutting, chronology, and suspense.", "title": "Inspiration and writing" }, { "paragraph_id": 44, "text": "Influenced by his television and film scripting background, Martin tries to keep readers engrossed by ending each A Song of Ice and Fire chapter with a tense or revelational moment, a twist or a cliffhanger, similar to a TV act break. Scriptwriting has also taught him the technique of \"cutting out the fat and leaving the muscle\", which is the final stage of completing a book, a technique that brought the page count in A Dance with Dragons down almost eighty pages. Dividing the continuous A Song of Ice and Fire story into books is much harder for Martin. Each book shall represent a phase of the journey that ends in closure for most characters. A smaller portion of characters is left with clear-cut cliffhangers to make sure readers come back for the next installment, although A Dance with Dragons had more cliffhangers than Martin originally intended. Both one-time and regular POV characters are designed to have full character arcs ending in tragedy or triumph, and are written to hold the readers' interest and not be skipped in reading. Main characters are killed off so that the reader will not rely on the hero to come through unscathed and will instead feel the character's fear with each page turn.", "title": "Inspiration and writing" }, { "paragraph_id": 45, "text": "The unresolved larger narrative arc encourages speculation about future story events. According to Martin, much of the key to A Song of Ice and Fire's future lies over a dozen years in the fictional past, of which each volume reveals more. Events planned from the beginning are foreshadowed, although Martin is careful not to make the story predictable. The viewpoint characters, who serve as unreliable narrators, may clarify or provide different perspectives on past events. Therefore, what the readers believe to be true may not necessarily be true.", "title": "Inspiration and writing" }, { "paragraph_id": 46, "text": "Regarding the characters as the heart of the story, Martin planned the epic A Song of Ice and Fire to have a large cast of characters and many different settings from the beginning. A Feast for Crows has a 63-page list of characters, with many of the thousands of characters mentioned only in passing or disappearing from view for long stretches. When Martin adds a new family to the ever-growing number of genealogies in the appendices, he devises a secret about the personality or fate of the family members. However, their backstory remains subject to change until written down in the story. Martin drew most character inspiration from history (without directly translating historical figures) and his own experiences, but also from the manners of his friends, acquaintances, and people of public interest. Martin aims to \"make my characters real and to make them human, characters who have good and bad, noble and selfish well-mixed in their natures\". Jeff VanderMeer of the Los Angeles Times remarked that \"Martin's devotion to fully inhabiting his characters, for better or worse, creates the unstoppable momentum in his novels and contains an implied criticism of Tolkien's moral simplicity\" (see Themes: Moral ambiguity).", "title": "Inspiration and writing" }, { "paragraph_id": 47, "text": "Martin deliberately ignored the writing rule of never giving two characters names starting with the same letter. Instead, character names reflect the naming systems in various European family histories, where particular names were associated with specific royal houses and where even the secondary families assigned the same names repeatedly. The story of A Song of Ice and Fire therefore has children called \"Robert\" in honor of King Robert of House Baratheon, a \"Brandon\" in every other generation of the Starks in commemoration of Brandon the Builder (of the Wall), and the syllable \"Ty\" commonly occurring in given names of House Lannister. Confident that readers would pay attention, Martin distinguished people sharing a given name by adding numbers or locations to their given names (e.g. Henry V of England). The family names were designed in association with ethnic groups (see backstory): the First Men in the North of Westeros had very simply descriptive names like Stark and Strong, whereas the descendants of the Andal invaders in the South have more elaborate, undescriptive house names like Lannister or Arryn, and the Targaryens and Valyrians from the Eastern continent have the most exotic names with the letter Y.", "title": "Inspiration and writing" }, { "paragraph_id": 48, "text": "All characters are designed to speak with their own internal voices to capture their views of the world. The Atlantic pondered whether Martin ultimately intended the readers to sympathize with characters on both sides of the Lannister–Stark feud long before plot developments force them to make their emotional choices. Contrary to most conventional epic fantasies, the characters of A Song of Ice and Fire are vulnerable so that, according to The Atlantic, the reader \"cannot be sure that good shall triumph, which makes those instances where it does all the more exulting.\" Martin gets emotionally involved in the characters' lives during writing, which makes the chapters with dreadful events sometimes very difficult to write. Seeing the world through the characters' eyes requires a certain amount of empathy with them, including the villains, all of whom he has said he loves as if they were his own children. Martin found that some characters had minds of their own and took his writing in different directions. He returns to the intended story if it does not work out, but these detours sometimes prove more rewarding for him.", "title": "Inspiration and writing" }, { "paragraph_id": 49, "text": "Arya Stark, Tyrion Lannister, Jon Snow, and Daenerys Targaryen generate the most feedback from readers. They are also four of the \"big six\" main characters of the series, according to Martin (the other two being Sansa Stark and Bran Stark). Martin has stated that Tyrion is his personal favorite, as the grayest of the gray characters, with his cunning and wit making him the most fun to write. Martin has also said that Bran Stark is the hardest character to write. As the character most deeply involved in magic, Bran's story needs to be handled carefully within the supernatural aspects of the books. Bran is also the youngest viewpoint character, and has to deal with the series' adult themes like grief, loneliness, and anger. Martin set out to have the young characters grow up faster between chapters, but, as it was implausible for a character to take two months to respond, a finished book represents very little time passed. Martin hoped the planned five-year break would ease the situation and age the children to almost adults in terms of the Seven Kingdoms, but he later dropped the five-year gap (see section Bridging the timeline gap).", "title": "Inspiration and writing" }, { "paragraph_id": 50, "text": "Modern fantasy may often embrace strangeness, but A Song of Ice and Fire series is generally praised for what is perceived as a sort of medieval realism. Believing that magic should be used moderately in the epic fantasy genre, Martin set out to make the story feel more like historical fiction than contemporary fantasy, with less emphasis on magic and sorcery and more on battles, political intrigue, and the characters. Though the amount of magic has gradually increased throughout the story, the series is still to end with less overt magic than most contemporary fantasies. In Martin's eyes, literary effective magic needs to represent strange and dangerous forces beyond human comprehension, not advanced alien technologies or formulaic spells. As such, the characters understand only the natural aspects of their world, but not the magical elements like the Others.", "title": "Themes" }, { "paragraph_id": 51, "text": "Since Martin drew on historical sources to build the world of A Song of Ice and Fire, Damien G. Walter of The Guardian saw a strong resemblance between Westeros and England in the period of the Wars of the Roses. The Atlantic's Adam Serwer regarded A Song of Ice and Fire as \"more a story of politics than one of heroism, a story about humanity wrestling with its baser obsessions than fulfilling its glorious potential\", where the emergent power struggle stems from the feudal system's repression and not from the fight between good and evil. Martin not only wanted to reflect the frictions of the medieval class structures in the novels, but also explore the consequences of the leaders' decisions, as general goodness does not automatically make competent leaders and vice versa.", "title": "Themes" }, { "paragraph_id": 52, "text": "A common theme in the fantasy genre is the battle between good and evil, which Martin rejects for not mirroring the real world. Attracted to gray characters, Martin instead endorses William Faulkner's view that only the human heart in conflict with itself was worth writing about. Martin explores the questions of redemption and character change in the A Song of Ice and Fire series. The multiple viewpoint structure allows characters to be explored from many sides, such that the supposed villains can provide their viewpoint.", "title": "Themes" }, { "paragraph_id": 53, "text": "Although fantasy comes from an imaginative realm, Martin sees an honest necessity to reflect the real world where people, even beloved people, sometimes die ugly deaths. Main characters are killed off so that the reader will not expect the supposed hero to survive, and instead will feel the same tension and fear that the characters might. The novels also reflect the substantial death rates in war. The deaths of supernumerary extras, or of orcs or their equivalents, have no major effect on readers, whereas a friend's death has much more emotional impact. Martin prefers a hero's sacrifice to say something profound about human nature.", "title": "Themes" }, { "paragraph_id": 54, "text": "According to Martin, the fantasy genre rarely focuses on sex and sexuality, instead often treating sexuality in a juvenile way or neglecting it completely. Martin, however, considers sexuality an important driving force in human life that should not be excluded from the narrative. Providing sensory detail for an immersive experience is more important than plot advancement for Martin, who aims to let the readers experience the novels' sex scenes, \"whether it's a great transcendent, exciting, mind blowing sex, or whether it's disturbing, twisted, dark sex, or disappointing perfunctory sex.\" Martin was fascinated by medieval contrasts where knights venerated their ladies with poems and wore their favors in tournaments while their armies mindlessly raped women in wartime. The non-existent concept of adolescence in the Middle Ages served as a model for Daenerys' sexual activity at the age of 13 in the books. The novels also allude to the incestuous practices in the Ptolemaic dynasty of Ancient Egypt to keep their bloodlines pure.", "title": "Themes" }, { "paragraph_id": 55, "text": "Martin provides a variety of female characters to explore the place of women in a patriarchal society. Writing all characters as human beings with the same basic needs, dreams, and influences, his female characters are to cover the same wide spectrum of human traits as the males.", "title": "Themes" }, { "paragraph_id": 56, "text": "Science Fiction Weekly stated in 2000 that \"few would dispute that Martin's most monumental achievement to date has been the groundbreaking A Song of Ice and Fire historical fantasy series\", for which reviews have been \"orders of magnitude better\" than for his previous works, as Martin described to The New Yorker. In 2007, Weird Tales magazine described the series as a \"superb fantasy saga\" that \"raised Martin to a whole new level of success\". Shortly before the release of A Dance with Dragons in 2011, Bill Sheehan of The Washington Post was sure that \"no work of fantasy has generated such anticipation since Harry Potter's final duel with Voldemort\", and Ethan Sacks of Daily News saw the series turning Martin into a darling of literary critics as well as mainstream readers, which was \"rare for a fantasy genre that's often dismissed as garbage not fit to line the bottom of a dragon's cage\". Salon.com's Andrew Leonard stated:", "title": "Reception" }, { "paragraph_id": 57, "text": "The success is all the more remarkable because [the series debuted] without mass market publicity or any kind of buzz in the fantasy/SF scene. George R. R. Martin earned his following the hard way, by word of mouth, by hooking his characters into the psyche of his readers to an extent that most writers of fantasy only dream of.", "title": "Reception" }, { "paragraph_id": 58, "text": "Publishers Weekly noted in 2000 that \"Martin may not rival Tolkien or Robert Jordan, but he ranks with such accomplished medievalists of fantasy as Poul Anderson and Gordon Dickson.\" After the fourth volume came out in 2005, Time's Lev Grossman considered Martin a \"major force for evolution in fantasy\" and proclaimed him \"the American Tolkien\", explaining that, although Martin was \"[not] the best known of America's straight-up fantasy writers\" at the time and would \"never win a Pulitzer or a National Book Award ... his skill as a crafter of narrative exceeds that of almost any literary novelist writing today\". As Grossman said in 2011, the phrase American Tolkien \"has stuck to [Martin], as it was meant to\", being picked up by the media including The New York Times (\"He's much better than that\"), the New Yorker, Entertainment Weekly (\"an acclaim that borders on fantasy blasphemy\"), The Globe and Mail, and USA Today. Time magazine named Martin one of the 100 most influential people in the world in 2011, and USA Today named George R.R. Martin their Author of the Year 2011.", "title": "Reception" }, { "paragraph_id": 59, "text": "According to The Globe and Mail's John Barber, Martin manages simultaneously to master and transcend the genre so that \"Critics applaud the depth of his characterizations and lack of cliché in books that are nonetheless replete with dwarves and dragons\". Publishers Weekly gave favorable reviews to the first three A Song of Ice and Fire novels at their points of release, saying that A Game of Thrones had \"superbly developed characters, accomplished prose and sheer bloody-mindedness\", that A Clash of Kings was \"notable particularly for the lived-in quality of [their fictional world and] for the comparatively modest role of magic\", and that A Storm of Swords was one \"of the more rewarding examples of gigantism in contemporary fantasy\". However, they found that A Feast For Crows as the fourth installment \"sorely misses its other half. The slim pickings here are tasty, but in no way satisfying.\" Their review for A Dance with Dragons repeated points of criticism for the fourth volume, and said that, although \"The new volume has a similar feel to Feast\", \"Martin keeps it fresh by focusing on popular characters [who were] notably absent from the previous book.\"", "title": "Reception" }, { "paragraph_id": 60, "text": "According to the Los Angeles Times, \"Martin's brilliance in evoking atmosphere through description is an enduring hallmark of his fiction, the settings much more than just props on a painted stage\", and the novels captivate readers with \"complex storylines, fascinating characters, great dialogue, perfect pacing, and the willingness to kill off even his major characters\". CNN remarked that \"the story weaves through differing points of view in a skillful mix of observation, narration and well-crafted dialogue that illuminates both character and plot with fascinating style\", and David Orr of The New York Times found that \"All of his hundreds of characters have grace notes of history and personality that advance a plot line. Every town has an elaborately recalled series of triumphs and troubles.\" Salon.com's Andrew Leonard \"couldn't stop reading Martin because my desire to know what was going to happen combined with my absolute inability to guess what would happen and left me helpless before his sorcery. At the end, I felt shaken and exhausted.\" The Christian Science Monitor advised reading the novels with an A Song of Ice and Fire encyclopedia at hand to \"catch all the layered, subtle hints and details that [Martin] leaves throughout his books. If you pay attention, you will be rewarded and questions will be answered.\"", "title": "Reception" }, { "paragraph_id": 61, "text": "Among the most critical voices were Sam Jordison and Michael Hann, both of The Guardian. Jordison detailed his misgivings about A Game of Thrones in a 2009 review and summarized \"It's daft. It's unsophisticated. It's cartoonish. And yet, I couldn't stop reading .... Archaic absurdity aside, Martin's writing is excellent. His dialogue is snappy and frequently funny. His descriptive prose is immediate and atmospheric, especially when it comes to building a sense of deliciously dark foreboding [of the long impending winter].\" Hann did not consider the novels to stand out from the general fantasy genre, despite Martin's alterations to fantasy convention, although he rediscovered his childhood's views:", "title": "Reception" }, { "paragraph_id": 62, "text": "That when things are, on the whole, pretty crappy [in the real world], it's a deep joy to dive headfirst into something so completely immersive, something from which there is no need to surface from hours at a time. And if that immersion involves dragons, magic, wraiths from beyond death, shapeshifting wolves and banished princes, so be it.", "title": "Reception" }, { "paragraph_id": 63, "text": "The reported overall sales figures of the A Song of Ice and Fire series vary. The New Yorker said in April 2011 (before the publication of A Dance with Dragons) that more than 15 million A Song of Ice and Fire books had been sold worldwide, a figure repeated by The Globe and Mail in July 2011. Reuters reported in September 2013 that the books including print, digital and audio versions have sold more than 24 million copies in North America. The Wall Street Journal reported more than six million sold copies in North America by May 2011. USA Today reported 8.5 million copies in print and digital overall in July 2011, and over 12 million sold copies in print in December 2011. The series has been translated into more than 20 languages; USA Today reported the fifth book to be translated into over 40 languages. Forbes estimated that Martin was the 12th highest-earning author worldwide in 2011 at $15 million.", "title": "Reception" }, { "paragraph_id": 64, "text": "Martin's publishers initially expected A Game of Thrones to be a best-seller, but the first installment did not even reach any lower positions in the bestseller list. This left Martin unsurprised, as it is \"a fool's game to think anything is going to be successful or to count on it\". However, the book slowly won the passionate advocacy of independent booksellers and the book's popularity grew by word of mouth. The series' popularity skyrocketed in subsequent volumes, with the second and third volumes making The New York Times Best Seller lists in 1999 and 2000, respectively. The series gained Martin's old writings new attention, and Martin's American publisher Bantam Spectra was to reprint his out-of-print solo novels.", "title": "Reception" }, { "paragraph_id": 65, "text": "The fourth installment, A Feast for Crows, was an immediate best-seller at its 2005 release, hitting number one on \"The New York Times\" hardcover fiction bestseller list November 27, 2005, which for a fantasy novel suggested that Martin's books were attracting mainstream readers. The paperback edition of A Game of Thrones reached its 34th printing in 2010, surpassing the one million mark. Before it even premiered, the TV series had boosted sales of the book series, with A Song of Ice and Fire approaching triple-digit growth in year-on-year sales. Bantam was looking forward to seeing the tie-ins boost sales further, and Martin's British publisher Harper Voyager expected readers to rediscover their other epic fantasy literature. With a reported 4.5 million copies of the first four volumes in print in early 2011, the four volumes re-appeared on the paperback fiction bestseller lists in the second quarter of 2011.", "title": "Reception" }, { "paragraph_id": 66, "text": "At its point of publication in July 2011, A Dance with Dragons was in its sixth print with more than 650,000 hardbacks in print. It also had the highest single and first-day sales of any new fiction title published in 2011 at that point, with 170,000 hardcovers, 110,000 e-books, and 18,000 audio books reportedly sold on the first day. A Dance with Dragons reached the top of The New York Times bestseller list on July 31, 2011. Unlike most other big titles, the fifth volume sold more physical than digital copies early on, but nevertheless, Martin became the tenth author to sell 1 million Amazon Kindle e-books. All five volumes and the four-volume boxed set were among the top 100 best-selling books in the United States in 2011 and 2012.", "title": "Reception" }, { "paragraph_id": 67, "text": "The TV series has contributed significantly boosting sales of both the books and collectibles like box-sets, merchandise, and other items. The TV series also contributed in increasing the geographic coverage of the books, introducing new customers in emerging countries like India and Brazil to the book series. All this has significantly increased the overall book sales. As of April 2019, the book series has sold 90 million copies worldwide.", "title": "Reception" }, { "paragraph_id": 68, "text": "\"After all, as some of you like to point out in your emails, I am sixty years old and fat, and you don't want me to 'pull a Robert Jordan' on you and deny you your book. Okay, I've got the message. You don't want me doing anything except A Song of Ice and Fire. Ever. (Well, maybe it's okay if I take a leak once in a while?)\"", "title": "Reception" }, { "paragraph_id": 69, "text": "—George R. R. Martin on his blog in 2009", "title": "Reception" }, { "paragraph_id": 70, "text": "During the 1980s and early 1990s, Martin's novels had slowly earned him a reputation in science fiction circles, although he said to only have received a few fans' letters a year in the pre-internet days. The publication of A Game of Thrones caused Martin's following to grow, with fan sites springing up and a Trekkie-like society of followers evolving that meet regularly. Westeros.org, one of the main A Song of Ice and Fire fansites with about seventeen thousand registered members as of 2011, was co-founded in 1999 by a Swedish-based fan of Cuban descent, Elio M. García Jr., as well as Linda Antonsson, who introduced him to the series; their involvement with Martin's work has now become semi-professional. The Brotherhood Without Banners, an unofficial fan club operating globally, was formed in 2001. Their founders and other longtime members are among Martin's good friends.", "title": "Reception" }, { "paragraph_id": 71, "text": "Martin runs an official website and administers a lively blog with the assistance of Ty Franck. He also interacts with fandom by answering emails and letters, although he stated in 2005 that their sheer numbers might leave them unanswered for years. Since there are different types of conventions nowadays, he tends to go to three or four science-fiction conventions a year simply to go back to his roots and meet friends. He does not read message boards anymore, so that his writing will not be influenced by fans foreseeing twists and interpreting characters differently from what he intended.", "title": "Reception" }, { "paragraph_id": 72, "text": "While Martin calls the majority of his fans \"great\", and enjoys interacting with them, he lost some of them because of the six years it took to release A Dance with Dragons. A movement of disaffected fans called GRRuMblers formed in 2009, creating sites such as Finish the Book, George and Is Winter Coming? When fans' vocal impatience for A Dance with Dragons peaked shortly after, Martin issued a statement called \"To My Detractors\" on his blog that received media attention. The New York Times noted that it was not uncommon for Martin to be mobbed at book signings. The New Yorker called this \"an astonishing amount of effort to devote to denouncing the author of books one professes to love. Few contemporary authors can claim to have inspired such passion.\"", "title": "Reception" }, { "paragraph_id": 73, "text": "Martin has written several prequel novellas. The Tales of Dunk and Egg series, three novellas set 90 years before the events of the novel series, feature the adventures of Ser Duncan the Tall and his squire \"Egg\", who later became King Aegon V Targaryen. The stories have no direct connection to the plot of A Song of Ice and Fire, although both characters are mentioned, in A Storm of Swords and A Feast for Crows respectively. The first installment, The Hedge Knight, was published in the 1998 anthology Legends. The Sworn Sword followed in 2003, published in Legends II. Both were later adapted into graphic novels. The third novella, The Mystery Knight, was first published in the 2010 anthology Warriors and in 2017 it was adapted as a graphic novel, as well. In 2015, the first three novellas were published as one illustrated collection, A Knight of the Seven Kingdoms.", "title": "Derived works" }, { "paragraph_id": 74, "text": "The novella The Princess and the Queen, or, the Blacks and the Greens appeared in Tor Books's 2013 anthology Dangerous Women and explains some of the Targaryen backstory two centuries before the events of the novels. The Rogue Prince, or, a King's Brother, published in the 2014 anthology Rogues, is itself a prequel to the events of The Princess and the Queen. The novella The Sons of the Dragon, published in the 2017 anthology The Book of Swords, is the story of Aegon the Conqueror's two sons Aenys I and Maegor I \"The Cruel\". All three of these stories were incorporated as parts of Fire & Blood, a book chronicling the history of the Targaryen line.", "title": "Derived works" }, { "paragraph_id": 75, "text": "Chapter sets from the novels were also compiled into three novellas that were released between 1996 and 2003 by Asimov's Science Fiction and Dragon:", "title": "Derived works" }, { "paragraph_id": 76, "text": "Fire & Blood is Martin's complete history of House Targaryen, to be released in two volumes. The first volume was released on November 20, 2018.", "title": "Derived works" }, { "paragraph_id": 77, "text": "With the popularity of the series growing, HBO optioned A Song of Ice and Fire for a television adaptation in 2007. A pilot episode was produced in late 2009, and a series commitment for nine further episodes was made in March 2010. The series, titled Game of Thrones, premiered in April 2011 to great acclaim and ratings (see Game of Thrones § Reception). The network picked up the show for a second season covering A Clash of Kings two days later. Shortly after the conclusion of the first season, the show received 13 Emmy Award nominations, including Outstanding Drama Series, winning Outstanding Main Title Design and Outstanding Supporting Actor in a Drama Series for Peter Dinklage's portrayal of Tyrion Lannister. HBO announced a renewal for a third season in April 2012, ten days after the season 2 premiere. Due to the length of the corresponding book, the third season only covered roughly the first half of A Storm of Swords.", "title": "Derived works" }, { "paragraph_id": 78, "text": "Early during the development of the TV series, Martin told major plot points to producers David Benioff and D. B. Weiss. Martin was confident he would have published at least The Winds of Winter before the TV series overtook him. Nevertheless, there were general concerns about whether Martin would be able to stay ahead of the show. As a result, head writers Benioff and Weiss learned more future plot points from Martin in 2013 to help them set up the show's new possible seasons. This included the end stories for all the core characters. Deviations from the books' storylines were considered, but a two-year hiatus to wait for new books was not an option for them (as the child actors continue to grow and the show's popularity would wane).", "title": "Derived works" }, { "paragraph_id": 79, "text": "Shortly after the season 3 premiere in March 2013, the network announced that Game of Thrones would be returning for a fourth season, which would cover the second half of A Storm of Swords along with the beginnings of A Feast for Crows and A Dance With Dragons. Game of Thrones was nominated for 15 Emmy Awards for season 3. Two days after the fourth season premiered in April 2014, HBO renewed Game of Thrones for a fifth and sixth season. Season 5 premiered on April 12, 2015, and set a Guinness World Records for winning the highest number of Emmy Awards for a series in a single season and year, winning 12 out of 24 nominations, including Outstanding Drama Series. These episodes were watched by 8 million viewers, setting a record number for the series. On January 2, 2016, Martin confirmed that the sixth volume would not be published before the start of the sixth season of the HBO series. The sixth season premiered on April 24, 2016. These episodes received the most nominations for the 68th Primetime Emmy Awards with 23, winning 12, including the award for Outstanding Drama Series. The seventh season premiered on July 16, 2017. The eighth and final season premiered on April 14, 2019.", "title": "Derived works" }, { "paragraph_id": 80, "text": "A spin-off prequel series, House of the Dragon, was later developed based on Martin's Fire & Blood. The first season premiered on August 21, 2022.", "title": "Derived works" }, { "paragraph_id": 81, "text": "A Song of Ice and Fire has spawned an industry of spin-off products. Fantasy Flight Games released a collectible card game, a board game, and two collections of artwork inspired by A Song of Ice and Fire series. Various roleplaying game products were released by Guardians of Order and Green Ronin. Dynamite Entertainment adapted A Game of Thrones into a same-titled monthly comic in 2011. Several video games are available or in production, including A Game of Thrones: Genesis (2011) and Game of Thrones (2012) by Cyanide; both received mediocre ratings from critics. A social network game titled Game of Thrones Ascent (2013) by Disruptor Beam allows players to live the life of a noble during the series' period setting. Random House released an official map book called The Lands of Ice and Fire, which includes old and new maps of the Ice and Fire world. The companion book The World of Ice & Fire by Martin and the Westeros.org owners Elio M. García Jr. and Linda Antonsson was published in October 2014. Other licensed products include full-sized weapon reproductions, a range of collectable figures, Westeros coinage reproductions, and a large number of gift and collectible items based on the HBO television series. The popularity of the HBO series has made its version of the Iron Throne an icon of the entire media franchise.", "title": "Derived works" } ]
A Song of Ice and Fire is a series of epic fantasy novels by the American novelist and screenwriter George R. R. Martin. He began writing the first volume, A Game of Thrones, in 1991, publishing it in 1996. Martin originally envisioned the series as a trilogy but has released five out of a planned seven volumes. The fifth and most recent entry in the series, A Dance with Dragons, was published in 2011. Martin continues to write the sixth novel, titled The Winds of Winter. A seventh novel, A Dream of Spring, is planned to follow. A Song of Ice and Fire depicts a violent world dominated by political realism. What little supernatural power that remains is confined to the margins of the known world. Moral ambiguity pervades the books and their stories continually raise questions concerning loyalty, pride, human sexuality, piety, and the morality of violence. The novels are set on the fictional continents of Westeros and Essos. The story unfolds through a rotating set of subjective points of view, the success or survival of any one of which is never assured. Each chapter is told from a limited third-person perspective, drawn from a group of characters that grows from nine in the first novel to 31 by the fifth. The work as a whole consists of three interwoven plots: A dynastic war among several families for control of Westeros, The growing threat posed by powerfully supernatural Others from the northernmost region of Westeros, The ambition of the daughter of the deposed Westerosi king to return from her exile in Essos and assume the Iron Throne. Martin's stated inspirations for the series include the Wars of the Roses and The Accursed Kings, a series of French historical novels by Maurice Druon. As of 2023 more than 90 million copies in 47 languages had been sold. The fourth and fifth volumes both reached the top of the New York Times Best Seller lists when published in 2005 and 2011. Among the many derived works number several prequel novellas, two series for television, a comic book adaptation, and several card, board, and video games.
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https://en.wikipedia.org/wiki/A_Song_of_Ice_and_Fire
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World of A Song of Ice and Fire
The fictional world in which the A Song of Ice and Fire novels by George R. R. Martin take place is divided into several continents, known collectively as The Known World. Most of the story takes place on the continent of Westeros and in a large political entity known as the Seven Kingdoms. Those kingdoms are spread across nine regions: the North, the Iron Islands, the Riverlands, the Vale, the Westerlands, the Stormlands, the Reach, the Crownlands, and Dorne. A massive wall of ice and old magic separates the Seven Kingdoms from the largely unmapped area to the north. The vast continent of Essos is located east of Westeros, across the Narrow Sea. The closest foreign nations to Westeros are the Free Cities, a collection of nine independent city-states along the western edge of Essos. The lands along the southern coastline of Essos are called the Lands of the Summer Sea and include Slaver's Bay and the ruins of Valyria. The latter is the former home of the ancestors of House Targaryen. To the south of Essos are the continents of Sothoryos and Ulthos, which in the narrative are largely unexplored. The planet experiences erratic seasons of unpredictable duration that can last for many years. At the beginning of A Song of Ice and Fire, Westeros has enjoyed a decade-long summer, and many fear that an even longer and harsher winter will follow. George R. R. Martin set the Ice and Fire story in an alternative world of Earth, a "secondary world", such as that which J. R. R. Tolkien pioneered with Middle-earth. Martin has also suggested that world may be larger than the real world planet Earth. The Ice and Fire narrative is set in a post-magic world where people no longer believe in supernatural things such as the Others. Although the characters understand the natural aspects of their world, they do not know or understand its magical elements. Religion, though, has a significant role in the life of people, and the characters practice many different religions. A Game of Thrones, the first installment of the A Song of Ice and Fire series, has two maps of Westeros. Each new book has added one or two maps so that, as of A Dance with Dragons, seven maps of the fictional world are available in the books. Martin said in 2003 that complete world maps were not made available so that readers may better identify with people of the real Middle Ages who were uneducated about distant places. He also did not "subscribe to the theory put forth in The Tough Guide To Fantasyland ... that eventually the characters must visit every place shown on The Map." He conceded, however, that readers may be able to piece together a world map by the end of the series. He was intentionally vague about the size of the Ice and Fire world, omitting a scale on the maps to discourage prediction of travel lengths based on measured distances. A new map artist was used in A Dance with Dragons so that the maps are available in two versions by James Sinclair and Jeffrey L. Ward, depending on the book. The old maps were redone to match the style of the new ones. A set of foldout maps was published on October 30, 2012, as The Lands of Ice and Fire (ISBN 978-0345538543). The illustrator and cartographer Jonathan Roberts drew the maps, based on drafts by Martin. The twelve maps in the set are entitled "The Known World", "The West", "Central Essos", "The East", "Westeros", "Beyond The Wall", "The Free Cities", "Slaver's Bay", "The Dothraki Sea", "King's Landing", "Braavos", and "Journeys". The latter tracks the paths taken by the novels' characters. The story takes place primarily on an elongated continent called Westeros, which is roughly the size of South America. The continent is home to the Seven Kingdoms, also known as "the Realm" or the "Sunset Kingdom", located to the south side of the Wall, a massive man-made ice wall (allegedly fused with magic) 700 feet in height and spanning east–west for 300 miles from coast to coast. The Seven Kingdoms are further divided into the so-called "North" and "South" by a swamp-rich isthmus called the Neck. The land north of the Wall still makes up a large chunk (being roughly the size of Canada) of Westeros, but remains largely unmapped and unexplored, especially the ice field region north and west of a massive mountain range called the Frostfangs, which marks the farthest geographic limit of human settlements. The northern extent of the continent is therefore unknown, although thought to be continuous with a polar ice cap north of the Shivering Sea known as the White Waste. At the novel's beginning, the majority of Westeros is united under the rule of a single king, whose seat is the "Iron Throne" in the city of King's Landing. The king has direct rule over an area known as the Crownlands, surrounding King's Landing; each of the other regions is functionally controlled by a different major noble house, who all wield significant power in their own lands, while owing fealty to the Iron Throne. Martin here drew inspiration from medieval European history, in particular the Hundred Years' War, the Crusades, the Albigensian Crusade, and the Wars of the Roses. The first inhabitants of the continent were the Children of the Forest, a nature-worshipping Stone Age anthropoid species who carved the faces of their gods in weirwood trees. Some time later, Bronze Age human settlers, known as the First Men, migrated from Essos via a land bridge at the southeastern end of the continent and gradually spread to the entire continent. The First Men's attempts to chop down forests and cultivate the land led to a millennia-long war with the Children of the Forest, that eventually was settled by an agreement known as "The Pact". This was the beginning of the Age of Heroes, during which the First Men adopted the religion of the Children of the Forest. Those gods later became known in Westeros as the Old Gods. Eight thousand years before the events of the novels, an enigmatic arctic humanoid species called the Others emerged from the Land of Always Winter, the northernmost part of Westeros, during the decades-long winter known as "The Long Night". The Children of the Forest and the First Men allied to repel the Others, and then built the Wall barring passage from the far north. The region north of the Wall was since collectively known as the land "Beyond the Wall", and settled by tribal descendants of the First Men known as the Wildlings or Free Folk. Sometime later, the Iron Age humans from Essos called the Andals invaded Westeros, bringing along the Faith of the Seven. One by one, kingdoms of the First Men south of the Neck fell to the Andals, and only the North remained unconquered. The Children of the Forest were slaughtered and disappeared from Andal lands. Over time, seven relatively stable feudal kingdoms were forged across Westeros, although their territories fluctuated over the next few thousand years through constant warfare, and no kingdom remained dominant for long: Three hundred years before the novels begin, the Targaryen dragonlord Aegon the Conqueror and his two sister-wives Visenya and Rhaenys, whose ancestors migrated from Valyria to Dragonstone a century prior, invaded the Westerosi mainland and landed his army at the mouth of the Blackwater Rush. The three assembled a temporary bastion called "Aegonfort", which later grew into the massive capital city known as King's Landing. Aided by their three formidable fire-breathing dragons, the Targaryen armies subdued six of the Seven Kingdoms through conquest or treaty, wiping out three of the seven ruling houses (Durrandon, Hoare and Gardener) that refused to bend their knees, replacing them with houses Baratheon, Tully and Tyrell respectively. Only the defiant Dorne remained independent for almost another two hundred years through asymmetric guerrilla resistance, until it was finally absorbed under the Iron Throne through a marriage-alliance by King Daeron II in 187 AC. The Targaryens built the Iron Throne, forged from the swords of their defeated enemies by dragonfire. They also annexed the land regions of the riverlands and stormlands around the Blackwater Bay as the Crownlands. House Targaryen ruled as the sole monarchy of the Seven Kingdoms for almost three centuries until overthrown by a rebellion led by Robert Baratheon in 283 AC. Martin took the name Westeros from the Scottish region Wester Ross. The North consists of the northern half of the Seven Kingdoms and is ruled by House Stark from their castle at Winterfell. The North is sparsely populated, but nearly as big as the other six southern kingdoms combined. Martin compared the North to Scotland. The climate is cold overall, with hard winters and mild snows common regardless of the season. Beyond the wall in the far north, the climate is polar with heavy snow while further south, it is milder with more rain. The region's northern border is the Gift, a stretch of land 50 leagues wide given to the possession of the Night's Watch. An isthmus called The Neck separates the North from the South. It is dominated by swamplands and is home to short, marsh-dwelling crannogmen ruled by House Reed of Greywater Watch, loyal bannermen of House Stark. The Neck's difficult wetland terrain is infested by predatory lizard-lions, restricting the only dryland passage to a causeway commanded by the almost impenetrable stronghold of Moat Cailin, which protected the North from land invasion from the south for thousands of years. The city of White Harbor, located at the mouth of the White Knife river, is a thriving port and the fifth largest settlement in the Seven Kingdoms. Illegitimate children born of a noble parent in the North are given the surname Snow. Winterfell is the ancestral castle of House Stark and the political capital of the North. Located at the geographical center of the North, it has a cold, subarctic climate with snowy winters and cool summers. The castle was built over a natural hot spring, whose scalding water runs inside the castle walls and warms its halls and rooms as well as the glass garden at its northwestern corner. There are several open pools where heated water collects within the godswood. The hot spring also prevents the ground from freezing. The castle has deep catacombs called "the crypt", where bodies of deceased Starks are entombed behind statues in their likeness with a direwolf at their feet and their swords in their hands. The tombs have been used since the old kings of the North, known as the Kings of Winter, were in power. They ruled since before the arrival of the Andals. To depict Winterfell, both the pilot and season 1 of the television adaptation used the 16th century clock tower and ancient courtyard of Castle Ward in County Down, Northern Ireland. Doune Castle in Stirling, Scotland, which was previously featured as Castle Anthrax in the film Monty Python and the Holy Grail, was also used for exterior scenes. Saintfield Estates stood in as Winterfell's godswood, an enclosed wooded area where characters can worship the old gods beside trees with faces carved in their bark. A car park stood in for Winterfell's courtyard, and a wine cellar was used to depict the Stark family crypt. Tollymore Forest featured prominently in the prologue of the pilot episode and in the pivotal scene where the Starks first find the direwolves. Cairncastle, meanwhile, served as the location where Ned Stark beheads the deserter Will. The interior of Winterfell, such as the Tower of the First Keep, the Great Hall, and Catelyn's bedchamber, were filmed at The Paint Hall studio. Set designer Gemma Jackson said, "Winterfell was based on a Scottish castle." The Wall is a huge structure of stone, ice, and magic on the northern border of the Seven Kingdoms. It is home to the Night's Watch, a brotherhood sworn to protect the realms of men from the threats beyond the Wall. The Wall was inspired by Martin's visit to Hadrian's Wall, in the North of England close to the border with Scotland. Looking out over the hills, Martin wondered what a Roman centurion from the Mediterranean would feel, not knowing what threats might come from the north. This experience was so profound that a decade later, in 1991, he wanted to "write a story about the people guarding the end of the world", and ultimately "the things that come out of the [fictional] north are a good deal more terrifying than Scotsmen or Picts". Martin adjusted the size, length, and magical nature of the Wall for genre demands; Jon Snow's chapters describe it as approximately 300 miles (480 km) long and 700 feet (210 m) high in general, rising up to a perceived 900 feet (270 m) in spots due to huge foundation blocks. The top is wide enough for a dozen mounted knights to ride abreast (approximately 30 ft or 10 m), while the base is so thick that the Wall's gates are more like tunnels through the ice. The novels' legends claim that the First Men, or more specifically Brandon the Builder with the possible help of children of the forest and giants, constructed the Wall some 8,000 years before the events of the series. The Wall has since been maintained by the Night's Watch to guard the realms of men against threats from beyond, originally the Others, and later against wildling raids. A strip of land known as "the Gift", now stretching 50 leagues (about 150 miles (240 km)) south of the wall, was given to them in perpetuity thousands of years earlier for cultivation. In A Game of Thrones, of the nineteen castles built along the wall, only three are still manned: Castle Black with 600 men, and the Shadow Tower and Eastwatch-by-the-Sea with 200 men each. Parts of Castle Black have fallen into ruin. The TV series' Castle Black and the Wall were filmed in the abandoned Magheramorne Quarry near Belfast, Northern Ireland, whereas the scenes shot atop the wall were filmed inside Paint Hall Studios. The composite set (with both exteriors and interiors) consisted of a large section of Castle Black including the courtyard, the ravenry, the mess hall, and the barracks, and used the stone wall of the quarry as the basis for the ice wall that protects Westeros from the dangers that dwell beyond. They also made a functional elevator to lift the rangers to the top of the Wall. A castle with real rooms and a working elevator were built near a cliff 400 feet (120 m) high. "Working construction lifts were discovered at a nearby work site and rise 18 feet; CGI fills in the rest to make the wall appear 700 feet high." The area around the elevator was painted white to make it look like ice. Martin was surprised by the height and thought: "Oh I may have made the wall too big!" Martin observed: "It's a pretty spectacular, yet miserable location. It is wet and rainy, and the mud is thick....[it] really gets the actors in the mood of being at the end of the world in all of this cold and damp and chill." A Clash of Kings takes the story to the lands Beyond the Wall, although the first five books do not explore "what lies really north ... but we will in the last two books". The TV adaptation used Iceland as filming location for the lands Beyond the Wall. Martin, who has never been to Iceland, said Beyond the Wall was "considerably larger than Iceland and the area closest to my Wall is densely forested, so in that sense it's more like Canada – Hudson Bay or the Canadian forests just north of Michigan. And then as you get further and further north, it changes. You get into tundra and ice fields and it becomes more of an arctic environment. You have plains on one side and a very high range of mountains on the other. Of course, once again this is fantasy, so my mountains are more like the Himalayas." In an HBO featurette, Martin stated the lands beyond the wall make up a big part of Westeros, being roughly the size of Canada. The Valley of Thenn is one such location beyond the Wall, and north of that is the Lands of Always Winter, where the Others come from. During the first season, the HBO team used places that they could decorate with artificial snow for the north of the Wall, but a bigger landscape was chosen for Season 2. "Primary filming for these scenes, which encompass both the Frostfangs and the Fist of the First Men, occurred at the Svínafellsjökull calving glacier in Skaftafell, Iceland, followed by shooting near Smyrlabjörg and Vík í Mýrdal on Höfðabrekkuheiði. Benioff said, "We always knew we wanted something shatteringly beautiful and barren and brutal for this part of Jon's journey, because he's in the true North now. It's all real. It's all in camera. We're not doing anything in postproduction to add mountains or snow or anything." The Iron Islands are a group of seven islands to the west of Westeros – Pyke, Great Wyk, Old Wyk, Harlaw, Saltcliffe, Blacktyde, and Orkmont – in Ironman's Bay off the west coast of the continent. Ruled by House Greyjoy of Pyke, the isles are described as bare and barren, with the local weather being "windy and cold, and damp". The members of this seafaring nation are known in the rest of Westeros as Ironmen, and to themselves as Ironborn. Illegitimate children born in the Iron Islands are given the surname Pyke. For fierce raids, the Ironmen are titled the "terror of the seas". They worship the Drowned God, who "had made them to reave and rape, to carve out kingdoms and write their names in fire and blood and song". The appendix of A Game of Thrones summarizes that the Ironmen once ruled over the Riverlands and much of the western coast of Westeros. When Aegon the Conqueror extinguished Harren the Black's line, he chose House Greyjoy as the new rulers of the Ironmen. Pyke is the seat of House Greyjoy. The television adaptation filmed the scenes of Pyke's port at Lordsport Harbour in Ballintoy Harbour, in Northern Ireland's County Antrim. The sea has worn away much of the rock on which Pyke originally stood, so the castle now consists mostly of a main keep on the main island and smaller towers perched on rocks surrounded by sea. Old Wyk is the smallest and holiest island in the Iron Islands. It is where Kingsmoots are held, and where the Grey King slew Nagga, a sea dragon, and made a court of his bones. The Riverlands are the populous and fertile areas surrounding the forks of the river Trident on Westeros. While they form one of the nine regions of Westeros, the Riverlands' central location and geographic features made the region an inter-kingdom battle zone that changed hands rather than becoming its own 'eighth' kingdom of the Seven Kingdoms. Centrally located between the Westerlands, the Crownlands, the Vale, and the North and lacking the natural defenses of other regions, they have seen frequent warfare. The first ruler to unite the Riverlands was Benedict Justman, but the Justman dynasty died out three centuries later. The Durrandons conquered the Riverlands, but lost rule of it to Harwyn "Hardhand" Hoare, King of the Iron Islands. At the time of Aegon's conquest, the Riverlands were ruled by Harwyn's grandson, Harren the Black, king of the Iron Islands, and the Tullys were local nobles who rebelled against him by joining Aegon the Conqueror. As with Westerosi customs to give bastards a surname showing their origins, illegitimate children born in the Riverlands are given the surname Rivers. Harrenhal is an enormous ruined castle and is the site of many important events in the novels. Harrenhal was built by Harren the Black, after his conquest of the Riverlands, intending to make it the largest fortification ever built in Westeros. The castle has been described as so large that an entire army was needed to garrison it. The Great Hall had 35 hearths and seated thousands. Shortly after the castle was completed, Aegon the Conqueror's dragon slew Harren, his sons, and his entire army by setting the castle alight. Since then, the ruins of the castle have been occupied by a variety of houses, all of which eventually became extinct. As a result, the people of Westeros believe the castle is cursed. The logistical and economic difficulties inherent in keeping such an enormous castle maintained and garrisoned has made it something of a white elephant. At the start of the War of the Five Kings, the castle is in ruin, with only a fraction of it habitable, and held by Lady Shella Whent, the last of her House, who is stripped of Harrenhal when the Lannisters seize her castle. The castle changes hands repeatedly over the course of the novels, many of those holding it meeting unpleasant ends. Riverrun is the ancestral stronghold of House Tully. The castle is located along one of the "forks" of the Trident and controls access to the interior of Westeros. The castle is bordered on two sides by the Tumblestone River and the Red Fork. The third side fronts on a massive manmade ditch. It was built by Ser Axel Tully on land he received from the Andal King Armistead Vance. The castle is the location of Robb Stark's great victory over House Lannister and the site of his crowning. By the end of A Feast for Crows, Brynden Tully surrenders the castle to Jaime Lannister to spare further bloodshed. Riverrun then passed into the hands of Emmon Frey, an ally of House Lannister. The Twins is a large double castle straddling the Green Fork river; the two halves of the castle are connected by a bridge that is the only crossing of the river for hundreds of miles. The Twins is the seat of House Frey, which has grown wealthy by charging a toll of all those who cross for the past six centuries. Because the Freys are both wealthy and numerous, theirs is one of the most powerful houses sworn to House Tully. The castle's strategic position gives House Frey enormous importance in times of war. When Robb Stark goes to The Twins to repair his alliance with House Frey, the Freys massacre him, his mother, and his army (and in the TV adaptation, his wife): an event known as "The Red Wedding", which violates native customs of guest right and incurs enmity throughout the Seven Kingdoms, especially in the Riverlands and North. The Vale is the area surrounded almost completely by the Mountains of the Moon in the east of Westeros. The Vale is under the rulership of House Arryn, one of the oldest lines of Andal nobility and formerly Kings of Mountain and Vale. Their seat, the Eyrie, is a castle high in the mountains, small but considered unassailable. The only way to reach the Vale is by a mountain road teeming with animals called 'shadowcats', rock slides, and dangerous mountain clans. The mountain road ends at the Vale's sole entrance, the Bloody Gate: a pair of twin watchtowers, connected by a covered bridge, on the rocky mountain slopes over a very narrow path. The protection of the surrounding mountains gives the Vale itself a temperate climate, fertile meadows, and woods. The snowmelt from the mountains and a constant waterfall that never freezes, named Alyssa's Tears, provide plentiful water. The Vale has rich black soil, wide slow-moving rivers, and hundreds of small lakes. Illegitimate children born in the Vale are given the surname Stone. Based on the German castle of Neuschwanstein, the Eyrie is the seat of House Arryn. It is situated on the Giant's Lance and reachable only by a narrow mule trail, guarded by the Gates of the Moon and three small castles, titled Stone, Snow, and Sky. Travelers must enter the Gates of the Moon and its upper bailey before reaching the narrow path up the mountain. The steps up the Giant's Lance starts directly behind the Gates of the Moon. The Eyrie clings to the mountain and is six hundred feet above Sky. The last part of the climb to the Eyrie is something of a cross between a chimney and a stone ladder, which leads to the Eyrie's cellar entrance. Due to the Mountains of the Moon's harsh winters, travel to and from the Eyrie is possible through the mountains only in summer. The Eyrie is the smallest of the great castles in the story, consisting of seven slim towers bunched tightly together. It has no stables, kennels, or smithies, but the towers can house 500 men, and the granary can sustain a small household for a year or more. The Eyrie does not keep livestock on hand; all dairy produce, meats, fruits, vegetables, etc., must be brought from the Vale below. Its cellars hold six great winches with long iron chains to draw supplies and occasionally guests from below. Oxen are used to raise and lower them. Winter snows can make supplying the fortress impossible. The Eyrie's dungeons, known as "sky cells", are left open to the sky on one side and have sloping floors that put prisoners in danger of slipping or rolling off the edge. Executions in the Eyrie are carried out via the Moon Door, which opens from the high hall onto a 600-foot drop. The Eyrie is made of pale stone and primarily decorated with the blue and white colors of House Arryn. Elegant details provide warmth and comfort through plentiful fireplaces, carpets, and luxurious fabrics. Many of the chambers have been described to be warm and comfortable, with magnificent views of the Vale, the Mountains of the Moon, or the waterfall. The Maiden's Tower is the easternmost of the seven slender towers, so all the Vale can be seen from its windows and balconies. The apartments of the Lady of the Eyrie open over a small garden planted with blue flowers and ringed by white towers, containing grass and scattered statuary, with the central statue of a weeping woman believed to be Alyssa Arryn, around low, flowering shrubs. The lord's chambers have doors of solid oak, and plush velvet curtains covering windows of small rhomboid panes of glass. The High Hall has a blue silk carpet leading to the carved weirwood thrones of the Lord and Lady Arryn. The floors and walls are of milk-white marble veined with blue. Daylight enters down through high narrow arched windows along the eastern wall, and there are some fifty high iron sconces where torches may be lit. The Eyrie was held by Lord Jon Arryn, who fostered Ned Stark and Robert Baratheon prior to Robert's Rebellion (also known as the War of the Usurper). After the war, Lord Arryn served as King Robert I Baratheon's Hand of the King (prime minister). After Lord Arryn was assassinated, his wife, Lady Lysa Arryn, took her sickly child, Robin, and fled to the Eyrie. Lysa refused to align herself with any of the claimants during the War of the Five Kings, but eventually pretends to a possible alliance with House Lannister after Lord Petyr Baelish agrees to marry her. Later Baelish kills Lysa after she attempts to murder her niece, Sansa Stark. As of Feast for Crows, Baelish rules in the Eyrie as the Lord Protector and Regent for the sickly, epileptic Lord Robert "Robin" Arryn, and plans for Sansa to marry Harold Harding, who will become heir to the Eyrie and the Vale in the event of young Robin Arryn's death. For the CGI compositions of the Vale of Arryn in the TV series, as seen in the establishing shot of the Eyrie and from the sky cells, the visual effects team used images and textures from the Greek rock formations of Meteora. Initially they had been considering the Zhangjiajie Mountains in China, but because the landscape base plates were shot in Northern Ireland, using Meteora resulted a better option. Set designer Gemma Jackson said, "A lot of the mosaics in the Eyrie were based on a beautiful chapel I visited in Rome." The interior of the High Hall of the Arryns was filmed at The Paint Hall, occupying one of the four soundstages there. Martin acknowledged that the set differed significantly from its presentation in the books: "In the books, the room is long and rectangular. But [The Paint Hall soundstage] had essentially a square space, which they chose to put a round hall in, with a staircase curving up to a throne that was high above." The Westerlands are the Westerosi lands to the west of the Riverlands and north of the Reach. They are ruled by House Lannister of Casterly Rock, formerly Kings of the Rock. People of this region are often called "Westermen." Lannisport, lying hard by Casterly Rock, is the chief town of the region and one of the great ports and cities of Westeros. The Westerlands are rich in precious metals, mostly gold, which is the source of their wealth. Keeping with Westerosi customs to give bastards a surname showing their origins, illegitimate children born in the Westerlands are given the surname Hill. A stronghold carved from a mountain overlooking the harbor city of Lannisport and the sea beyond, Casterly Rock is the ancestral seat of House Lannister. According to popular legend, the hero known as Lann the Clever tricked the Casterlys into giving up the Rock, and took it for himself. The Rock is renowned as the wealthiest region due to its abundance of gold mining resources, and it is one of the strongest castles of the Seven Kingdoms. It has never been taken in battle, despite attacks by the Iron Islanders and the plans of Robb Stark in the War of the Five Kings. It was held by Lord Tywin Lannister before the War of the Five Kings, but after his death, Queen Regent Cersei Lannister made one of her cousins castellan of the castle. As of A Dance with Dragons, the narrative has not actually taken place in Casterly Rock, yet descriptions of it have been offered by the Lannisters in the POV chapters. West of Casterly Rock is the coastal city of Lannisport. A busy port under the governance of the Lannisters of Casterly Rock, Lannisport thrives as a protected and wealthy city. The city is also home to many lesser Lannisters and other people with similar surnames, such as Lannys. George R. R. Martin stated on his blog that he drew inspiration for Casterly Rock from the Rock of Gibraltar. The Reach is the southwestern region of Westeros along the valleys of the Mander (the largest river in Westeros) and the Honeywine. It is the second-largest of the kingdoms in terms of geographical area (behind only the North) and is the most fertile and heavily populated region of Westeros. The wealth and power of the Reach comes from its warm, sunny climate, which grants bountiful harvests of farm foods and the most sought-after wines. During times of war, the expansive lands of the Reach and its abundance of foods protects their inhabitants from initial famine and sickness. The Reach is considered the home of chivalry in Westeros, and is the place where knighthood is looked upon with the greatest reverence, and where the rules for tourneys are the most stringent and managed. The most prominent population center in the Reach is Oldtown, Westeros's oldest and second largest city and port as well as the home to the Maesters' Citadel and the former religious seat of the Faith of the Seven, situated at the mouth of the Honeywine estuary. The Reach was historically known as the Green Realm, ruled by King of the Reach from House Gardener in Highgarden. During Aegon's conquest, the last Gardener King, Mern IX, was killed along with all his heirs and kins on the Field of Fire. House Tyrell, the stewards to House Gardener, surrendered Highgarden to Aegon and were rewarded with both the castle and the position of overlords of the Reach. Illegitimate children born in the Reach are given the surname Flowers. During the reign of House Baratheon as the ruler of Westeros, the Reach is the second wealthiest region in the Seven Kingdom, behind only the mine-rich Westerlands. During the War of the Five Kings, in a significant political maneuver during the civil war, House Tyrell provides the starving populace of King's Landing with hundreds of carts of food, ensuring the positive image of House Tyrell foremost, and the alliance for the Iron Throne with House Baratheon as secondary. However, the Tyrells were responsible for the starvation in the first place, as part of their plan to help the pretender Renly Baratheon contend for the Iron Throne. Oldtown is one of the largest cities in Westeros and is by far the oldest, built by the First Men before the Andal Invasion. It survived the invasion by welcoming the Andals rather than resisting them. The city is located in the southwestern part of Westeros, at the mouth of the River Honeywine, where it opens onto Whispering Sound and the Sunset Sea beyond. Oldtown is primarily known as the location of the Citadel, home of the order of Maesters who serve as councillors, doctors, scientists, and postmasters for the Seven Kingdoms. The city's Starry Sept was the seat of the Faith of the Seven until the construction of the Great Sept of Baelor in King's Landing. Aegon the Conqueror's reign is dated from his entrance into the city of Oldtown and his acknowledgment as king by the High Septon. Oldtown is the second most important port in the Seven Kingdoms after King's Landing: trading ships from the Summer Islands, the Free Cities, the eastern cities, and the rest of Westeros constantly crowd into its harbors. The city itself is described as stunningly beautiful with a warm climate. Many rivers and canals crisscross its cobbled streets, and breathtaking stone mansions are common. The city lacks the squalor of King's Landing, which usurped its position as the preeminent city of Westeros. The largest structure in the city, and the tallest structure in Westeros, is the Hightower, a massive stepped lighthouse which extends some 800 feet (240 m) into the sky and is topped by a huge beacon which can be seen for many miles out to sea. Oldtown is ruled from the Hightower by House Hightower. Originally kings in their own right, they later swore fealty to the Gardeners of Highgarden, and became vassals of the Tyrells after the Conquest. The Hightowers are known for their loyalty and stalwartness. The current ruler of the city is Lord Leyton Hightower. Oldtown remained aloof from the War of the Five Kings, but late in the war the Ironborn under King Euron Greyjoy launched a massive raid along the coast, conquering the Shield Islands and parts of the Arbor before trying to blockade the mouth of the Honeywine. An attempt to attack the city harbor was repulsed by the city's defenders. Oldtown remains under threat from the Ironborn. The Stormlands are the large cape between the Blackwater Bay and the Sea of Dorne and the cape's associated western hinterlands, named for the severe weathers in the coastal areas. The region is bordered in the east by the Narrow Sea, especially a large semi-enclosed bay known as the Shipbreaker Bay behind the island of Tarth; from King's Landing and the Crownlands in the north by a large forest known as the Kingswood; from the Reach in the west by the headwaters of the Mander River; and Dorne in the south by the expansive Red Mountains. The southwestern Stormlands are a borderland area historically contested among the Stormlands, the Reach and Dorne, known as the Dornish Marches. Before Aegon's conquest, the Stormlands were ruled by the Storm Kings of House Durrandon founded by the legendary Durran Godsgrief. When Aegon the Conqueror invaded Westeros, his bastard half-brother Orys Baratheon slew the last Storm King in a duel and married the latter's daughter to establish House Baratheon, which has ruled the Stormlands as lord paramount afterwards. Highborn illegitimate children born in the Stormlands are given the surname Storm. Storm's End is the seat of House Baratheon and, before them, the ancestral seat of the Storm Kings extending back many thousands of years. According to legend, the first Storm King in the age of the First Men was Durran, who married Elenei, the daughter of the sea god and the goddess of the wind. In a rage her parents sent vast storms to shatter his keep and kill his wedding guests and family; whereupon Durran declared war against the gods and raised several castles over Shipbreaker Bay, each larger and more formidable than the last. Finally, the seventh castle stayed in place and resisted the storms. Some believe the Children of the Forest took a hand in its construction; others suggest that Brandon Stark, the builder of the Wall, advised Durran on its construction. The truth of the matter is unknown. Storm's End has never fallen to either siege or storm. Its outer defenses consist of a huge curtain wall, 100 feet (30 m) tall and 40 feet (12 m) thick on its thinnest side, nearly 80 feet (24 m) thick on its seaward side. The wall consists of a double course of stones with an inner core of sand and rubble. The wall is smooth and curving, the stones so well placed that the wind cannot enter. On the seaward side, there is a 150-foot (46 m) drop below the wall into the sea. The castle itself consists of one huge drum tower crowned with formidable battlements, and so large that it can comfortably contain stables, barracks, armory and lord's chambers in the same structure. Although never taken in battle, Storm's End has endured several sieges and battles in recent history. The last Storm King, Argilac the Arrogant, abandoned his impressive defenses to meet the Targaryen commander, Orys Baratheon, in open battle during Aegon Targaryen's War of Conquest, and lost. This led to Orys Baratheon marrying Argilac's daughter and becoming Lord of Storm's End. During the War of the Usurper, Storm's End was besieged for a year by the host of Lord Mace Tyrell, who commanded the landward forces, while Paxter Redwyne's fleet of the Arbor kept the castle cut off by sea. Stannis Baratheon, commanding the defense, refused to yield and his men were reduced to eating rats. A smuggler named Davos ran the blockade to resupply the castle and Stannis rewarded him by knighting him and giving him lands, thus founding House Seaworth, but he also cut off the fingertips of his left hand as punishment for all his previous smuggling. After the war, Stannis was furious when his brother Robert, now king, gave the castle to their younger brother Renly and placed Stannis in command of Dragonstone. This led to many years of bitterness on Stannis' part. During the War of the Five Kings, Storm's End supported Renly when he attempted to usurp the crown, and was besieged by Stannis. When the castellan, Cortnay Penrose, refused to yield even after Renly's death, he was killed by Stannis' ally, the priestess Melisandre, and the castle surrendered. Later, the castle was besieged by a strong army under Mace Tyrell, but he abandoned the siege after a few weeks to return to King's Landing after the arrest of his daughter Margaery by the High Septon. As of A Dance with Dragons, the castle remains in the hands of Stannis Baratheon. At the end of A Dance with Dragons an army lands in the Stormlands led by Jon Connington and a young man claiming to be Aegon Targaryen, the son of Rhaegar Targaryen and Elia Martell and heir to the Iron Throne. To attract support, Aegon plans to conquer Storm's End and raise the banner of House Targaryen above the battlements. In the TV adaptation, scenes in the Stormlands were filmed in Larrybane, Northern Ireland. The scene where Stannis' red priestess Melisandre gave birth to a shadow creature was filmed in the Cushendun Caves, also in Northern Ireland. The Crownlands are the lands in Westeros surrounding King's Landing, ruled directly by the crown of the Iron Throne. The Targaryen kings consolidated this as one of the nine regions of Westeros, after their conquest of the Seven Kingdoms, from sparsely populated pieces of the Riverlands and Stormlands. The Crownlands form the entire coastline of Blackwater Bay, and include the original Targaryen homeland on the island of Dragonstone, at the Narrow Sea entrance to Blackwater Bay. Besides King's Landing, which is the largest city in Westeros, the Crownlands include many towns and castles. The illegitimate children born in the Crownlands are given the surname Waters. Dragonstone was once the westernmost outpost of the ancient Freehold of Valyria. A century before the Doom, the Targaryen family moved to Dragonstone. When the Doom came upon Valyria, House Targaryen survived along with the last of the Valyrian dragons. Another century later, Aegon Targaryen and his sisters Rhaenys and Visenya launched a massive campaign of conquest from the island and eventually conquered all of Westeros except for Dorne, and North of the Wall. Aegon's progeny reigned as kings of the Seven Kingdoms for centuries. Dragonstone is a massive, forbidding fortress, taking up a large portion of the island of the same name. The castle is unique in that the builders and sorcerers of Valyria carved its towers and keeps into the shapes of dragons and made ferocious gargoyles to cover its walls using both magic and masonry. The castle's lower levels are warmed by residual volcanic activity deep below the keep. There is a small port and town outside of the castle. Additionally, in a cave at the beachfront of the castle, huge deposits of Dragonglass can be found. During the War of the Usurper, before the sack of King's Landing, the Targaryen Queen Rhaella, who was pregnant, and her son Viserys were sent to Dragonstone along with part of the Targaryen fleet and a garrison of loyal soldiers. But after King's Landing fell, Robert Baratheon dispatched his brother Stannis to take the island stronghold. After a storm destroyed the royalist fleet, the Targaryen garrison tried to betray Viserys and his newborn sister, Daenerys, to Stannis (the queen had died in childbirth). But Targaryen loyalists led by Ser Willem Darry took the children away. Stannis conquered Dragonstone easily, and King Robert granted him ownership of the castle. Stannis felt slighted because his younger brother Renly then inherited Storm's End, the ancient seat of House Baratheon. Ser Axell Florent, one of the uncles of Stannis' wife Selyse Florent, acted as castellan. Upon Robert's death, Stannis declared himself king of the Seven Kingdoms and condemned the queen's children as bastards born of incest, as he had discovered with Jon Arryn. Dragonstone became his main seat. He returned there after the disastrous Battle of the Blackwater. His councilor, the red priestess Melisandre of Asshai, tried to convince him to let her raise the "stone dragon" of the castle through blood magic, but Lord Davos Seaworth convinced Stannis to go north to the Wall to help the Night's Watch instead. After Stannis abandoned Dragonstone, leaving the Bastard of Nightsong Rolland Storm as castellan, Queen Regent Cersei Lannister dispatched a fleet to barricade it. However, Ser Loras Tyrell, impatient to free the fleet to protect his home castle of Highgarden, attacked Dragonstone directly. He took the castle but lost a thousand men and was himself reportedly gravely wounded. As of A Dance with Dragons, Dragonstone is now controlled by troops loyal to House Tyrell, and theoretically, once again under control of the Iron Throne. One scene set at Dragonstone, in which Stannis burns wooden sculptures of the Seven gods, was filmed at the beach of Downhill Strand. In Season 7 of the show, filming for Dragonstone took place at several locations in the Basque region of Spain: the islet of Gaztelugatxe in Bermeo, Itzurun Beach in Zumaia, and Muriola Beach in Barrika. King's Landing is the royal capital of Westeros and the Seven Kingdoms. King's Landing has an estimated population of 1 million people, making it the most populous city in Westeros. It is situated on the Blackwater river on the spot where Aegon the Conqueror landed in Westeros to begin his conquest. The main city is surrounded by a wall, which is manned by the City Watch of King's Landing, which is nicknamed the gold cloaks, after the cloaks they wear. Within the walls, the city's natural landscape is dominated by three hills, named after Aegon and his two sister-wives Rhaenys and Visenya. Poorer smallfolk (commoners) build shanty settlements outside the city. King's Landing is described as extremely populous but unsightly and dirty. The stench of the city's waste can be smelled far beyond its walls and there is a vast divide between the city's poor and the wealthy elite. The royal castle, called the Red Keep, sits on Aegon's Hill. It is the seat of the royal court. The Keep holds the Iron Throne. Aegon commissioned the throne's construction from the swords of his defeated enemies. According to legend, he kept the blades sharp because he believed that no ruler should ever sit comfortably. Centuries later, kings still cut themselves on the throne. It is a common belief that one who cuts himself on the throne has been "rejected" by the throne and is therefore not fit to rule. The city also holds the Great Sept of Baelor, where the Most Devout convene with the High Septon. It is the holiest sept of the Seven. The slums of King's Landing are called Flea Bottom, where residents are so poor they regularly subsist on "bowls of brown", a mystery stew that can include the meat of puppies and murder victims. King’s Landing has a temperate, mediterranean climate with long, warm, sunny summers and mild winters although snow does occasionally occur. Martin compared King's Landing to medieval Paris or London. It was inspired by the view of Staten Island from his childhood home in Bayonne, New Jersey. The first season of the TV adaptation used Malta's former capital Mdina to represent King's Landing. "Like King's Landing, Mdina is a walled medieval city built upon a hill, but unlike King's Landing, Mdina is an inland city – so the production was limited to interior shots such as side streets and the town gate, which can be seen when Ned Stark arrives. Nearby Fort Manoel doubled as the great Sept of Baelor," which can be seen when Ned Stark is executed. Various other locations around Malta represent the Red Keep, "including the real-life residence of the president of Malta, San Anton Palace. The gates of Fort Ricasoli doubled as the Red Keep's gates; Fort St. Angelo was used for the scenes of Arya Stark chasing cats; and St. Dominic monastery stood in for the scene where Ned Stark confronts Cersei Lannister in the godswood." "In season two, filming for King's Landing and the Red Keep shifted from Malta to the historic parts of Dubrovnik and the Minčeta, Bokar, and Lovrijenac fortresses in Croatia, which allowed for more exterior shots of an authentic walled medieval city." Parts of Season three were filmed there, too, as well as in nearby Trsteno. "Known as the Pearl of the Adriatic, the city proved to share many characteristics with the fictional capital: it had a well-preserved medieval look, with high walls and the sea at its side. According to David Benioff, executive producer of the show, "King's Landing might be the single most important location in the entire show, and it has to look right", and "The minute we started walking around the city walls we knew that was it. You read the descriptions in the book and you come to Dubrovnik and that's what the actual city is. It has the sparkling sea, sun and beautiful architecture." Co-Executive Producer D.B. Weiss added "To find a full-on, immaculately preserved medieval walled city that actually looks uncannily like King's Landing where the bulk of our show is set, that was in and of itself such an amazing find". The Tourney of the Hand in season 1 was filmed in Shane's Castle, Northern Ireland. The Red Keep interior are filmed at Belfast's studio The Paint Hall. Set designer Gemma Jackson said, "When I was thinking about King's Landing, the whole red aspect of it, that immediately made me think of Rajasthan. The floor [at King's Landing] was from the Pantheon in Rome." Martin said that "Our throne room is a spectacular throne room – we actually redressed a throne room built for [another] film. And again, it occupied a quarter of the Paint Hall, so it's very big, but in my mind [in the books], it's Westminster Abbey, it's St. Paul's Cathedral." Dorne is the southernmost and least populated land of Westeros. The capital, Sunspear, is the seat of the ruling House Martell. As of the first five books, Doran Nymeros Martell is the Prince of Dorne and Lord of Sunspear. Doran's sister, Princess Elia, was married in a political alliance to Prince Rhaegar Targaryen, the Prince of Dragonstone and heir to the Iron Throne. They had two children, a daughter, Rhaenys, and a son, Aegon. During the Sack of King's Landing at the end of Robert's Rebellion, Princess Elia was raped and murdered by Gregor Clegane, a House Lannister bannerman (vassal). Her children were also killed in front of her. Prince Doran and his wife, Princess Mellaria, have three children, Arianne, Quentyn and Trystane. During the War of the Five Kings, Tyrion Lannister, as Hand of the King, turns the historical enmity of House Martell and Dorne into an alliance by sending King Joffrey's middle sibling and sister, Myrcella Baratheon, as the betrothed future bride to Trystane, the youngest child of Prince Doran, who is about her own age. The eldest child of Prince Doran, Arianne, is heir to House Martell, Sunspear and the rule of Dorne. The wealth of Dorne comes from their famous Sand Steeds, purebred horses of endurance, speed, and grace, and from spices, wines, fishing, fabrics, and textiles. Dorne is bordered by the Sea of Dorne to the north, the islands known as the Stepstones to the east, and stretches from the high mountains of the Dornish marches, the Red Mountains, separating Dorne from the remainder of the Seven Kingdoms by land. The two major passes through the Red Mountains that connect Dorne with the rest of the continent are the Stone Way Pass and the Prince's Pass. The Prince's Pass leads to the Reach, while the Stone Way exits the mountains near Summerhall. The southern coast of the continent is bordered by the Summer Sea. Described as tropical in climate by George R. R. Martin, Dorne has the highest temperatures of any kingdom in Westeros, and is arid, with a rocky, mountainous, terrain that includes the only desert on the continent. Its rivers provide some fertile lands and during a long summer there is enough rain and other supplies of water to keep Dorne habitable. Inland water is almost as valuable as gold, and wells are jealously guarded. Notable locations of Dorne are Starfall, the seat of House Dayne, and Yronwood, the seat of House Yronwood, the most powerful of the Martell bannermen. Planky Town is a trade port town at the mouth of the River Greenblood. Dornishmen have a reputation for hot-bloodedness. They differ both culturally and ethnically from other Westerosi due to the historical mass immigration of Rhoynish people. They have adopted many Rhoynish customs as well, including equal primogeniture. Dorne was the only kingdom in Westeros to successfully resist Aegon's conquest, even killing one of his dragons during the war. It was conquered by Daeron I over a century after the Targaryen invasion, but rose against him leading to his death. Finally under Daeron's cousin Daeron II they joined through marriage. This accomplishment has allowed Dorne to retain a measure of independence. Lords of the ruling House Martell still style themselves "Prince" and "Princess" in the Rhoynish fashion. Unlike most of the rest of Westeros, illegitimate children born in Dorne are treated nearly the same as legal offspring and given the surname Sand, as with Westerosi customs to give bastards a surname showing their origins. According to A Storm of Swords, "There were three sorts of Dornishmen [...]. There were the salty Dornishmen who lived along the coasts, the sandy Dornishmen of the deserts and long river valleys, and the stony Dornishmen who made their fastnesses in the passes and heights of the Red Mountains. The salty Dornishmen had the most Rhoynish blood, the stony Dornishmen the least. All three sorts seemed well represented in Doran’s retinue. The salty Dornishmen were lithe and dark, with smooth olive skin and long black hair streaming in the wind. The sandy Dornishmen were even darker, their faces burned brown by the hot Dornish sun. They wound long bright scarfs around their helms to ward off sunstroke. The stony Dornishmen were biggest and fairest, sons of the Andals and the First Men, brownhaired or blond, with faces that freckled or burned in the sun instead of browning." In the show, Dornish scenes were filmed in the Alcázar of Seville, Seville, Spain. East of Naath, the Basilisk Isles have been a festering sore of the Summer Sea, and a safe haven for pirates, slavers, sellswords, and outlaws. Ruins have been found on the Isle of Tears, the Isle of Toads, and Ax Island. The Isle of Tears is the largest island, with steep valleys and black bogs. It was conquered by the Ghiscari and it was called Gorgai for two centuries, until the dragonlords of Valyria captured it and renamed it Gorgossos. It was used as a prison by the Freehold, a place where they sent their most despicable criminals. Naath, also known as the Isle of Butterflies, is an island off the north-west coast of Sothoryos that lies west of the Basilisk Isles. The Naathi people have dark skin and golden eyes. They practice extreme pacifism, making music instead of war and refusing to eat meat, only fruit. This makes them especially vulnerable to slavers from Essos. Daenerys' interpreter Missandei is from Naath. As indicated on a map in A Storm of Swords, the Summer Islands are a group of tropical islands situated to the south of Westeros, with a local fauna of talking birds, apes, and monkeys. The novels describe the island natives as dark-skinned people who speak their own language. They wear colored feathery clothes and live on fruit and fish. From their port city named Tall Trees Town, the Summer Isles export rare goods to Westeros such as wine, spices, feathers, but also a special kind of wood from which bows are made that have a longer range than most others. People of the Seven Kingdoms call the Summer Islanders' great vessels swan ships, "for their billowing white sails and for their figureheads, most of which depicted birds". Samwell Tarly, who spends two chapters in A Feast for Crows aboard a swan ship, describes the Summer Islander women as wanton, and their gods as strange; they "revered the elderly and celebrated their dead" through sexual intercourse. As a prostitute explains to Tyrion in A Clash of Kings, the Summer Islanders regard their sexuality as the gods' gift to worship them through mating, and hence many of their highborn youths and maidens serve in pleasure houses for a few years to honor the gods. Part of the narrative in A Song of Ice and Fire lies across the Narrow Sea from Westeros, an area comprising the large eastern continent named Essos. Being roughly the size of Eurasia, Essos has geography and climate that vary greatly. The western coastline is characterized by green rolling hills, the massive Forest of Qohor, and extensive island chains such as Braavos and Lys. The middle of the continent is covered by the flat grasslands of the Dothraki Sea and the arid lands known as the Red Waste to the east. Beyond the Red Waste lies the city of Qarth. The south is dominated by dry rolling hills and has a Mediterranean climate, with a coastline along the Summer Sea and Slaver's Bay. The north coast of the mainland is separated from the polar cap by the Shivering Sea. To the south, across the Summer Sea, lies the uncharted jungle continent of Sothoryos. Much of the fictional history of Essos relates to Valyria, a city located on a peninsula in southern Essos and the origin of House Targaryen before the destruction of the Valyrian Empire in an unspecified cataclysm. After the destruction of Valyria, the cities of Astapor, Yunkai, and Meereen regained independence and ruled their respective areas as city-states. The area is known in the books as Slaver's Bay. Across the Narrow sea on the western side of Essos lie the nine Free Cities, independent city-states that are mostly on islands or along the coast. They are Lys, Myr, Pentos, Braavos, Lorath, Norvos, Qohor, Volantis and Tyrosh. Although most Free Cities are named early in the first novel, the books only provide a map of this region in A Dance with Dragons. Mountains to the east separate the coast from the plains of the Dothraki Sea, though gaps in the mountain range provide the Dothraki people some access to the Free Cities. The Free Cities were colonies built by the ancient Valyrian Freehold, and later declared independence after the Doom of Valyria. An exception to this is Braavos, which was founded by refugees fleeing Valyrian expansion, escaped slaves and other rabble. The languages of the Free Cities are derivatives of High Valyrian. The Free Cities span an area characterized by the river Rhoyne, which the local character Yandry describes as "the greatest river in the world". Its banks are the homeland of the Rhoynar, who worship the river as "Mother Rhoyne". As mapped in A Dance with Dragons, the Rhoyne originates from the conjunction of two of its tributaries, the Upper Rhoyne and the Little Rhoyne, southeast of the ruins of Ghoyan Drohe. The headwaters of the Upper Rhoyne lie in Andalos, the homeland of the Andals between Braavos and Pentos. The Rhoyne's course runs southeast to turn due south after Dagger Lake, where river pirates hide on and around the many lake islands. The Rhoyne gains in width considerably as it gets fed by more tributaries, until it opens into the Summer Sea in a delta near the Free City of Volantis. Unique among the Free Cities, Braavos was not a Valyrian colony, but a secret refuge from Valyrian expansion. It is a city spread over hundreds of tiny islands in a lagoon on the northwestern end of Essos, where the Narrow Sea and Shivering Sea meet. Braavos is home to the 'Iron Bank', one of the wealthiest banks in the known world. Braavos is also known for its swordsmen known as 'bravos', and its mysterious assassins, the Faceless Men. It is also famed for the Titan of Braavos, both a fortress and a statue. The ruler of Braavos is known as the Sealord and it is from the sea that the city's power and wealth flows. The hulls of Braavosi ships are painted purple and their merchant ships sail to many distant lands and bring their trade and wealth back home. Braavos has many moneylenders and the Iron Bank of Braavos lends money to foreign nations, especially The Crown, which has borrowed millions. Braavosi dress in flashy colors while the very rich and powerful dress in black and in blues that are almost black. Officials of Braavos, called keyholders and justiciars, wear drab coats of brown or grey. The city is also renowned worldwide for its courtesans. Every courtesan has her own barge and servants to work them. The beauty of famed courtesans has inspired many a song. They are showered with gifts from goldsmiths and craftsmen beg for their custom. Nobility and rich merchants pay the courtesans large amounts of money to appear alongside them at events, and bravos are known to kill each other in their names. The character Syrio Forel, former first sword of the Sealord of Braavos, introduces Arya Stark to a unique form of Braavosi sword fighting, called Water Dancing. The style is a refined form of fencing in which the practitioner stands sideways and wields a slender blade. Pugnacious bravos fill the city, frequently dueling to display their skill. Braavos was inspired by Venice, Italy. It was filmed in Croatian towns of Šibenik, and Kaštel Gomilica In the TV series, locations used as Braavos included the Croatian town of Šibenik and the Spanish town of Girona. Pentos is a major trading port on a bay of the western coast. Dominated by an architecture of square brick towers, it is headed by a Prince who is chosen by the de facto rulers of the city, known as Magisters. Khalasars occasionally make their way this far from the Dothraki Sea, but the Pentoshi are spared much of the raiding and invasions by paying tribute to their khals. Men from Pentos wear dyed and forked beards. As in many Free Cities, slavery is outlawed, but the wealthy and powerful members of the city have the ability to flout these laws by keeping servants collared in bronze. In the television adaptation, Daenerys's scenes in the pilot episode were filmed in Morocco. The production redressed and repainted the Jerusalem sets of Kingdom of Heaven near Ouarzazate, Morocco, to serve as the courtyard of Illyrio's mansion where Daenerys first meets Khal Drogo. When the pilot was delivered, HBO scrapped all of the footage shot in Morocco, and the Pentos scenes were re-shot in Malta. The exterior scenes at Illyrio's mansion in Pentos were shot at Verdala Palace, the 16th century summer palace of the president of Malta. The Azure Window, on the island of Gozo in Malta, was used for the location of Daenerys's wedding to Khal Drogo. When Pentos reappeared in Season 5, it was filmed in Croatia. Volantis is a port on the southern coast of Essos, and is the oldest and proudest of the Free Cities. A fortification known as the Black Wall protects the oldest parts of the city. The city is ruled by three triarchs, who are elected every year by free landholders of Volantis, and defended by slave soldiers called the "Tiger cloaks". Volantis is incredibly important to the slave market, and in the city there are five slaves to every free man. All Volantene slaves have facial tattoos denoting their profession: for instance, sex slaves have tears tattooed on their faces, and the tiger cloaks have tiger stripes. The worship of R'hllor is the most influential religion of Volantis, especially among slaves. The TV adaptation used locations in Córdoba, Spain. This section covers the Essos locations east of the Free Cities that Daenerys Targaryen passes through on her travels in A Game of Thrones and A Clash of Kings before moving on to Slaver's Bay. Valyria is a peninsula in South-Central Essos, west of Slaver's Bay. Before the Doom of Valyria, it was the seat of the Valyrian Freehold, a massive empire thousands of years old. The Valyrians are characterized by their silver hair and violet eyes. Valyria was called the Freehold because every man who owned land was allowed to vote for their leaders. The Valyrians also used slaves to mine the Fourteen Flames, a series of volcanoes rich with ore. They subjugated the Ghiscari and the Rhoynar and established all of the Free Cities, save Braavos. They did this through their knowledge of dragonlore. Twoscore noble dynasties, known as dragonlords, rode and controlled dragons. Eventually, an event known as the Doom of Valyria, apparently involving a violent eruption of the Fourteen Flames, destroyed the Freehold and made Valyria an archipelago in the newly-formed Smoking Sea. The Targaryens are descendants of Old Valyria who escaped after Daenys the Dreamers' dream foretold of the eruption. The other noble families of Valyria mocked them, believing Daenys to be mad. Her father, Aenar Targaryen, believed her and successfully relocated the family to Dragonstone, an island on the east coast of Westeros, making them the only surviving dragonlords after the Doom. The Dothraki Sea is a vast, flat grassland on Essos. It is inhabited by the Dothraki people, a copper-skinned race of warlike nomads with their own language and unique culture. The Dothraki live in hordes called khalasars, each led by a chief called a khal. Khalasars are broken into groups, called khas, which are each led by one of the khal's captains, called kos. Each khal and his khalasar owe fealty to a ruling council of royal priestesses, called the dosh khaleen, whose members are each a former khal's consort, called a khaleesi during the reign of her husband, one who became part of the dosh khaleen following his death. Dothraki are expert riders and their horses are of prime importance in their culture, used for food, transportation, raw materials, warfare, and establishing social standing. They regularly raid other peoples. George R. R. Martin said "The Dothraki were actually fashioned as an amalgam of a number of steppe and plains cultures ... Mongols and Huns, certainly, but also Alans, Sioux, Cheyenne, and various other Amerindian tribes ... seasoned with a dash of pure fantasy. So any resemblance to Arabs or Turks is coincidental. Well, except to the extent that the [historic] Turks were also originally horsemen of the steppes, not unlike the Alans, Huns, and the rest." He also noted that "In general, though, while I do draw inspiration from history, I try to avoid direct one-for-one transplants, [so] it would not be correct to say that the Dothraki are Mongols." There are several similarities with another fearsome, nomadic warriors – the Scythians. The Dothraki have only one permanent city, called Vaes Dothrak, which serves as their capital. The Dosh Khaleen hold the city as their seat. It is filled with statues stolen from other cities the Dothraki conquered or raided. There is a law that no Dothraki may shed blood within the boundaries of Vaes Dothrak and that those who do are cursed. Two gigantic bronze stallions, whose hooves meet midair, form an arch above the entryway to the city. For the first season of the TV adaptation, Sandy Brae in the Mourne Mountains of Northern Ireland was chosen to stand in for Vaes Dothrak. The bronze stallions making up the Horse Gate as the main entrance of Vaes Dothrak, were later added using CGI on two pedestals erected on location. Lhazar is an area of the semi-arid lands south of the Dothraki Sea. A region of pastures and hills, it is inhabited by the Lhazareen, a peaceful people with bronze skin, flat faces, and almond eyes. They are predominantly shepherds, called the Lamb Men by the Dothraki, who frequently prey on them. They worship a god called the Great Shepherd and believe that all of humanity is part of a single flock. The scenes at the village of the Lamb Men that is sacked by the Dothraki were filmed in Malta, at the farming town of Manikata. Slaver's Bay is a marginal sea of the Summer Sea, lying to the south of the Dothraki Sea, to the west of Lhazar and thousands of leagues to the east of the Free Cities. The climate is very hot. After a first mention in A Game of Thrones in relation to slavery, Daenerys Targaryen conquers the three great Slaver's Bay port city-states Astapor, Yunkai, and Meereen in A Storm of Swords. She stays in Meereen throughout most of A Dance with Dragons. The cities were built from the rubble of Old Ghis, an ancient rival of Valyria that was crushed by Valyria thousands of years before the series' events. The economies of the cities are largely based on slave labor and the slave trade. Treatment of slaves is often harsh, while citizens live in relative luxury. Professional soldiers of all three cities wear outlandish costumes and hairstyles that limit their usefulness in battle. The cities' militaries are highly dependent on additional slave and mercenary armies for the actual fighting. Present inhabitants of the bay are a mixed race that no longer speak the old Ghiscari tongue but variations of High Valyrian with a characteristic growl. The ancient folk of Ghis, who name themselves the harpy's sons in Astapor, are said to have bristly red-black hair. The Good Masters of Astapor all appear alike to Daenerys as "thick fleshy men with amber skin, broad noses, dark eyes. Their wiry hair was black or a dark red, or that queer mixture of red and black that was peculiar to Ghiscari". Only the freeborn men of Astapor are permitted to wear garments called tokars, whose fringes display their status. Many Astapori women veil their face for the dust. The Astapori are drenched in sweet perfumes. Astapor lies on the banks of the Worm River, a wide, slow, and crooked stream with wooded islands. Entering Astapor at the beginning of A Storm of Swords, Daenerys experiences it as an ancient and dilapidated city that has long passed its glory days. The city is dominated by its red brick architecture, and Arstan Whitebeard explains to Daenerys that the saying "Brick and blood built Astapor, ... and brick and blood her people" refers to the slaves who make the bricks. Astapor's stepped pyramids, its fighting pits, streets, the surrounding walls and the Plaza of Pride are all made of red bricks. The so-called Plaza of Punishment at Astapor's main gates is even larger than the Plaza of Pride. The Plaza of Pride, which has a red-brick fountain and a huge bronze harpy statue in its center, serves as an open air slave market and a marshaling area for the Unsullied, elite eunuch spearmen known for discipline and effectiveness. Astapor is the only city to sell Unsullied, but also sells bed slaves, fieldhands, scribes, craftsmen, and tutors. The Unsullied require a huge investment in both time and money by the Astapori who raise and train them, but they earn the most profitable of returns for the Good Masters of Astapor. The Unsullied wear spiked bronze hats, and they obey at all costs, even if it demands their death. They are given new slave names each day to be reminded of their worthlessness. In times of attack, unsold Unsullied are deployed to the massive, crumbling red-brick walls that the Astapori no longer man. Daenerys decides to buy all of Astapor's trained and untrained Unsullied, over 8600 in number, and tells them to kill all adult Astapori slavers and soldiers when she leaves the city. She gives the power over Astapor to a council of former slaves led by a healer, a scholar and a priest, and tens of thousands of former slaves join her on her travels to Yunkai. A former butcher named Cleon fends off a scheme to have the Good Masters re-established, and was crowned as the King of Astapor in reward. The TV show used the coastal town of Essaouira, Morocco to film scenes in Astapor. The smallest of the three cities, Yunkai, like Meereen, does not trade in Unsullied but is known for its fighting pits and its pleasure houses, both of which turn out slaves at a brisk pace. The city is similar to Astapor in architecture except for its smaller size and its use of yellow brick in its buildings instead of red. The slavers of Yunkai are known as the Wise Masters. Because of the city's lack of Unsullied, it relies on a mixed professional and slave army of approximately 4,000 with at least 1,000 mercenaries. Typical for Ghiscari, Yunkai soldiers wear impractical armor and oiled hair teased into enormous shapes, limiting their effectiveness. Yunkish scenes were filmed in Aït Benhaddou, Morocco in the TV show. The largest of the three slaver cities, Meereen has a population equaling that of Astapor and Yunkai combined. The city has architecture similar to that of its neighbors, but it is made of bricks of many colors. Its landscape is dominated by a massive pyramid, named the Great Pyramid, and the Temple of Graces, which is capped by a golden dome. Meereen is unique among the Ghiscari cities in that it is filled with many temples and pyramids. The slavers of Meereen are known as the Great Masters. It is built on the banks of the river Skahadhazan. For the HBO television series, many of the scenes in Meereen were filmed in Split and the Fortress of Klis, Croatia. In Season 5, Daznak's Pit in the city was shot in the Plaza de Toros in Osuna, Spain. The Red Waste is a great desert-like area in the eastern part of Essos. Not much is known about it, since it was only briefly seen in A Clash of Kings when Daenerys Targaryen and her khalasar crossed it. The only known settlement in the region, Vaes Tolorro, is in ruins. First mentioned in A Game of Thrones, the city of Qarth has not yet appeared on any maps in the books. However, the HBO Viewer's Guide world map and the opening titles of the TV series' second season show Qarth located at a strait between the Summer Sea and the Jade Sea in the south-east of Essos. Upon Daenerys' first visit to Qarth in A Clash of Kings, the warlock Pyat Pree describes his city as the center of the world and as a gateway of commerce and culture between the east and west, and the north and south. The reader learns through Daenerys's eyes that the city is surrounded by three graded walls of thirty to fifty feet in height, respectively engraved with portraits of animals, war, and lovemaking. The city's buildings are of many colors, including rose, violet, and umber. Slender towers rise throughout the city, fountains adorn every square, and thousands of colored birds, blooming trees and flowers fill the city. The TV adaptation filmed Qarth on the island of Lokrum near Dubrovnik and constructed a set at the Dubac quarry in Croatia to double for the gates of Qarth. The Qartheen are described as "tall pale folk in linen and samite and tiger fur", with the women wearing gowns that leave one breast bare, while the men sport beaded silk skirts. Daenerys perceives them as "nothing if not polite". Slaves serve their needs. The Pureborn, descendants of the city's ancient kings and queens, govern Qarth and also command the city's defenses. Three principal merchant groups battle amongst themselves and against the Pureborn for dominance of the city: the Thirteen, the Ancient Guild of Spicers, and the Tourmaline Brotherhood. Qarth's warlocks, whose lips are turned blue from a potion called "the shade of the evening", are said to brood over these factions; they are still feared although their power and prestige have waned over the years. Qarth is also home to the Sorrowful Men, a guild of assassins named so for whispering "I am so sorry," before killing their victims. Daenerys leaves Qarth again at the end of A Clash of Kings. Asshai and the Shadow Lands are mysterious locations in the Ice and Fire world. They are first mentioned in A Game of Thrones and were first mapped in The Lands of Ice and Fire, lying on the far east of the known world. Martin is unsure if the books will ever take the readers to Asshai, but said that readers may learn more through the POV character Melisandre (who originates from Asshai) or through the memories and mentions of other characters. Jorah Mormont describes Asshai as a port city far to the south of the Dothraki sea, at the end of the known world. Asshai exports such goods as black amethysts, amber, and dragonglass. At another time, Jorah Mormont tells Daenerys of great kingdoms to the east of the Red Waste, and lists Asshai by the Shadow as one of the cities full of wonders there. According to Martin, all ship travels between Westeros and Asshai go via the Summer Sea and the Jade Sea through the straits at Qarth, and that the common folk still believe the world to be flat. However, according to Martin, "Asshai is not nearly important to trade as Yi Ti, and the rich port cities of Yi Ti (and Leng) and more easily reached via Qarth." Quaithe of the Shadow prophesies Daenerys in Qarth that "To go north, you must journey south. To reach the west, you must go east [...] and to touch the light you must pass beneath the shadow." When Daenerys interprets this to mean she must go to Asshai, Quaithe says she would find the truth there. There are many tales about the Shadow Lands, though how much truth they hold is unclear. The Dothraki believe that ghost grass covers the Shadow Lands, with stalks that glow in the dark and grow taller than a man on horseback. Daenerys heard that "spellsingers, warlocks, and aeromancers practiced their arts openly in Asshai, while shadowbinders and bloodmages worked terrible sorceries in the black of night". There are also Westerosi maesters in Asshai. The mages of Asshai teach others their healing powers, but also their spells requiring blood sacrifice. Ancient books of Asshai record the Azor Ahai prophecy followed by members of the R'hllor faith. Daenerys heard that dragons themselves originated from the Shadow Lands beyond Asshai and the islands of the Jade Sea, and they possibly still live there. Bran dreams of flying Dragons in Asshai. The petrified dragon eggs Illyrio gives to Daenerys are said to come from the Shadow Lands. The "dour and frightening" Shadow Men cover their bodies in tattoos and wear lacquered wooden masks, and the appearance of the Asshai'i is described as dark and solemn. The Dothraki believe the Asshai'i to be the spawn of shadows. The Asshai'i have a language of their own. Ibben is a collection of islands north of Essos in the Bay of Whales. The largest of these islands is Ib, which contains the cities Port of Ibben and Ib Nor. Until the Doom of Valyria, Ibben was ruled by a God-King. Now power is held by the Shadow Council, which is made up of nobles, priests, and wealthy guildsmen. Ibben is first mentioned in A Game of Thrones, where Tyrion talks of rumors that mammoths "roam the cold wastes beyond the Port of Ibben". In 2002, Martin said the narrative would "probably not" take readers to Ibben, which he described as a "cold, mountainous, Iceland-sized island" (i.e. 40,000 square miles) in the Shivering Sea, with the Port of Ibben as the major city; some Ibbenese also live on smaller islands nearby or in colonies on Essos. Ibben is unmapped in the books as of A Dance with Dragons, but similar to Martin's descriptions, the HBO Viewer's Guide world map gives the island's location as to the north-east of Essos. Martin said that due to a large whale population in the Shivering sea, many of the Ibbenses were whalers. The Ibbenses are known to chew whale blubber in order to maintain their metabolism in the cold climate. Several characters see Ibbenese whalers and cogs at the ports of King's Landing, Braavos, Maidenpool, Eastwatch-by-the-Sea, and the Iron Islands. The novels describe the people of Ibben as squat and hairy; Arya even meets an Ibbenese woman with a mustache. Tyrion and Varys meet foul-smelling Ibbenese, who "were as fond of axes as they were of each other". Arya sees "a dark brutal axeman from Ib" in her dreams. The Ibbenese are said to speak with low, raspy voices and to have their own language. The novels repeatedly describe Yi Ti as an empire with cities full of wonder, lying in the far east. As of A Dance with Dragons, Yi Ti has not appeared on any maps in the books, but Martin specified that "Yi Ti is to the south east of Qarth, generally, across the Jade Sea." The empire is first mentioned in A Game of Thrones, talking of rumors that "basilisks infested the jungles of Yi Ti". Sailor stories presented in A Feast for Crows mention that a grey plague has hit Yi Ti. The god of the people of Yi Ti is called the Lion of Night. Daenerys sees people of Yi Ti as bright-eyed men in monkey-tail hats in the markets of Vaes Dothrak. Yi Ti has more cities than any other land in the known world, and according to Lomas Longstrider they are much larger and more splendid than cities in the west. According to Colloquo Votar there are three older cities buried beneath every YiTish city. The capital of the Golden Empire of Yi Ti is Yin, along the Jade Sea. Martin is unsure "to what extent those peoples [like of Yi Ti] will ever enter this present story, however... their lands are very far away." North of Yi Ti, the Plains of Jogos Nhai are windswept, with rolling hills. They are dominated by a race of mounted warriors called the Jogos Nhai. The Jogos Nhai live in yurts and tents, and are a nomadic people. They are short, squat, and have large heads and small faces. Men and women both have pointed skulls, a result of their custom of binding the heads of newborns. They also ride zorses, a striped mount that can withstand much more than average horse. The Jogos Nhai do not fight among themselves and live in small clans bound by blood. They live in a state of perpetual war with outsiders and had been raiding many YiTish cities and have reduced around a hundred towns to ruin. Each tribe is commanded by a jhat, or war chief, and a moonsinger, who is a priestess, healer, and judge. Moonsingers are generally female, and jhats are mostly male. (Paraphrased from The World of Ice and Fire) To the south of Essos is the continent of Sothoryos (mistakenly spelled Sothoros in early novels). Sothoryos is the third continent of the known world, and is vast, plague-ridden, covered in jungles, and largely unexplored. It is reported to be as large as Essos and described as a "land without end" by Jaenara Belaerys, a Valyrian dragonlord from before the Doom of Valyria. The continent is first named on a map in A Storm of Swords (2000), showing the cities of Yeen and Zamettar on it. The narrative itself first refers to the continent in A Feast for Crows (2005). Martin had described Sothoryos in 2002 as "the southern continent, roughly equivalent to Africa, jungly, plague-ridden, and largely unexplored." The novels provide little other information. The swampy nature of Sothoryos is briefly referenced by Victarion in A Dance with Dragons, and teak from Sothoryos is said to be used to build ships. A corsair's road runs along the continent's northern coast. A Dance with Dragons refers to the diseases on Sothoryos in regards to the wealthy but sick Yunkai slave trader Yezzan zo Qaggaz. Victarion describes some people as "squat and hairy as the apes of Sothoros", and some people fighting in Daznak's Pit for Daenerys's entertainment in A Dance with Dragons are described as "brindle-skinned half-men from the jungles of Sothoros". Martin said that, unlike other peoples in the novels, the brindled men of Sothoryos were pure fantasy constructs. The map collection The Lands of Ice and Fire also shows the north tip of a landmass named "Ulthos" to the south of Essos and east of Sothoryos. Asked whether this was another continent, Martin replied, "Well, it's a large landmass. I am a little unclear on the formal definition of 'continent' as opposed to 'big island.' Also on the size of Ulthos, which after all sits at the edge of the known world. Terra incognita and all that."
[ { "paragraph_id": 0, "text": "The fictional world in which the A Song of Ice and Fire novels by George R. R. Martin take place is divided into several continents, known collectively as The Known World.", "title": "" }, { "paragraph_id": 1, "text": "Most of the story takes place on the continent of Westeros and in a large political entity known as the Seven Kingdoms. Those kingdoms are spread across nine regions: the North, the Iron Islands, the Riverlands, the Vale, the Westerlands, the Stormlands, the Reach, the Crownlands, and Dorne. A massive wall of ice and old magic separates the Seven Kingdoms from the largely unmapped area to the north. The vast continent of Essos is located east of Westeros, across the Narrow Sea. The closest foreign nations to Westeros are the Free Cities, a collection of nine independent city-states along the western edge of Essos. The lands along the southern coastline of Essos are called the Lands of the Summer Sea and include Slaver's Bay and the ruins of Valyria. The latter is the former home of the ancestors of House Targaryen. To the south of Essos are the continents of Sothoryos and Ulthos, which in the narrative are largely unexplored.", "title": "" }, { "paragraph_id": 2, "text": "The planet experiences erratic seasons of unpredictable duration that can last for many years. At the beginning of A Song of Ice and Fire, Westeros has enjoyed a decade-long summer, and many fear that an even longer and harsher winter will follow.", "title": "" }, { "paragraph_id": 3, "text": "George R. R. Martin set the Ice and Fire story in an alternative world of Earth, a \"secondary world\", such as that which J. R. R. Tolkien pioneered with Middle-earth. Martin has also suggested that world may be larger than the real world planet Earth. The Ice and Fire narrative is set in a post-magic world where people no longer believe in supernatural things such as the Others. Although the characters understand the natural aspects of their world, they do not know or understand its magical elements. Religion, though, has a significant role in the life of people, and the characters practice many different religions.", "title": "" }, { "paragraph_id": 4, "text": "A Game of Thrones, the first installment of the A Song of Ice and Fire series, has two maps of Westeros. Each new book has added one or two maps so that, as of A Dance with Dragons, seven maps of the fictional world are available in the books. Martin said in 2003 that complete world maps were not made available so that readers may better identify with people of the real Middle Ages who were uneducated about distant places. He also did not \"subscribe to the theory put forth in The Tough Guide To Fantasyland ... that eventually the characters must visit every place shown on The Map.\" He conceded, however, that readers may be able to piece together a world map by the end of the series. He was intentionally vague about the size of the Ice and Fire world, omitting a scale on the maps to discourage prediction of travel lengths based on measured distances. A new map artist was used in A Dance with Dragons so that the maps are available in two versions by James Sinclair and Jeffrey L. Ward, depending on the book. The old maps were redone to match the style of the new ones.", "title": "Maps" }, { "paragraph_id": 5, "text": "A set of foldout maps was published on October 30, 2012, as The Lands of Ice and Fire (ISBN 978-0345538543). The illustrator and cartographer Jonathan Roberts drew the maps, based on drafts by Martin. The twelve maps in the set are entitled \"The Known World\", \"The West\", \"Central Essos\", \"The East\", \"Westeros\", \"Beyond The Wall\", \"The Free Cities\", \"Slaver's Bay\", \"The Dothraki Sea\", \"King's Landing\", \"Braavos\", and \"Journeys\". The latter tracks the paths taken by the novels' characters.", "title": "Maps" }, { "paragraph_id": 6, "text": "The story takes place primarily on an elongated continent called Westeros, which is roughly the size of South America. The continent is home to the Seven Kingdoms, also known as \"the Realm\" or the \"Sunset Kingdom\", located to the south side of the Wall, a massive man-made ice wall (allegedly fused with magic) 700 feet in height and spanning east–west for 300 miles from coast to coast. The Seven Kingdoms are further divided into the so-called \"North\" and \"South\" by a swamp-rich isthmus called the Neck. The land north of the Wall still makes up a large chunk (being roughly the size of Canada) of Westeros, but remains largely unmapped and unexplored, especially the ice field region north and west of a massive mountain range called the Frostfangs, which marks the farthest geographic limit of human settlements. The northern extent of the continent is therefore unknown, although thought to be continuous with a polar ice cap north of the Shivering Sea known as the White Waste.", "title": "Westeros " }, { "paragraph_id": 7, "text": "At the novel's beginning, the majority of Westeros is united under the rule of a single king, whose seat is the \"Iron Throne\" in the city of King's Landing. The king has direct rule over an area known as the Crownlands, surrounding King's Landing; each of the other regions is functionally controlled by a different major noble house, who all wield significant power in their own lands, while owing fealty to the Iron Throne. Martin here drew inspiration from medieval European history, in particular the Hundred Years' War, the Crusades, the Albigensian Crusade, and the Wars of the Roses.", "title": "Westeros " }, { "paragraph_id": 8, "text": "The first inhabitants of the continent were the Children of the Forest, a nature-worshipping Stone Age anthropoid species who carved the faces of their gods in weirwood trees. Some time later, Bronze Age human settlers, known as the First Men, migrated from Essos via a land bridge at the southeastern end of the continent and gradually spread to the entire continent. The First Men's attempts to chop down forests and cultivate the land led to a millennia-long war with the Children of the Forest, that eventually was settled by an agreement known as \"The Pact\". This was the beginning of the Age of Heroes, during which the First Men adopted the religion of the Children of the Forest. Those gods later became known in Westeros as the Old Gods.", "title": "Westeros " }, { "paragraph_id": 9, "text": "Eight thousand years before the events of the novels, an enigmatic arctic humanoid species called the Others emerged from the Land of Always Winter, the northernmost part of Westeros, during the decades-long winter known as \"The Long Night\". The Children of the Forest and the First Men allied to repel the Others, and then built the Wall barring passage from the far north. The region north of the Wall was since collectively known as the land \"Beyond the Wall\", and settled by tribal descendants of the First Men known as the Wildlings or Free Folk.", "title": "Westeros " }, { "paragraph_id": 10, "text": "Sometime later, the Iron Age humans from Essos called the Andals invaded Westeros, bringing along the Faith of the Seven. One by one, kingdoms of the First Men south of the Neck fell to the Andals, and only the North remained unconquered. The Children of the Forest were slaughtered and disappeared from Andal lands. Over time, seven relatively stable feudal kingdoms were forged across Westeros, although their territories fluctuated over the next few thousand years through constant warfare, and no kingdom remained dominant for long:", "title": "Westeros " }, { "paragraph_id": 11, "text": "Three hundred years before the novels begin, the Targaryen dragonlord Aegon the Conqueror and his two sister-wives Visenya and Rhaenys, whose ancestors migrated from Valyria to Dragonstone a century prior, invaded the Westerosi mainland and landed his army at the mouth of the Blackwater Rush. The three assembled a temporary bastion called \"Aegonfort\", which later grew into the massive capital city known as King's Landing. Aided by their three formidable fire-breathing dragons, the Targaryen armies subdued six of the Seven Kingdoms through conquest or treaty, wiping out three of the seven ruling houses (Durrandon, Hoare and Gardener) that refused to bend their knees, replacing them with houses Baratheon, Tully and Tyrell respectively. Only the defiant Dorne remained independent for almost another two hundred years through asymmetric guerrilla resistance, until it was finally absorbed under the Iron Throne through a marriage-alliance by King Daeron II in 187 AC. The Targaryens built the Iron Throne, forged from the swords of their defeated enemies by dragonfire. They also annexed the land regions of the riverlands and stormlands around the Blackwater Bay as the Crownlands. House Targaryen ruled as the sole monarchy of the Seven Kingdoms for almost three centuries until overthrown by a rebellion led by Robert Baratheon in 283 AC.", "title": "Westeros " }, { "paragraph_id": 12, "text": "Martin took the name Westeros from the Scottish region Wester Ross.", "title": "Westeros " }, { "paragraph_id": 13, "text": "The North consists of the northern half of the Seven Kingdoms and is ruled by House Stark from their castle at Winterfell. The North is sparsely populated, but nearly as big as the other six southern kingdoms combined. Martin compared the North to Scotland. The climate is cold overall, with hard winters and mild snows common regardless of the season. Beyond the wall in the far north, the climate is polar with heavy snow while further south, it is milder with more rain. The region's northern border is the Gift, a stretch of land 50 leagues wide given to the possession of the Night's Watch.", "title": "Westeros " }, { "paragraph_id": 14, "text": "An isthmus called The Neck separates the North from the South. It is dominated by swamplands and is home to short, marsh-dwelling crannogmen ruled by House Reed of Greywater Watch, loyal bannermen of House Stark. The Neck's difficult wetland terrain is infested by predatory lizard-lions, restricting the only dryland passage to a causeway commanded by the almost impenetrable stronghold of Moat Cailin, which protected the North from land invasion from the south for thousands of years. The city of White Harbor, located at the mouth of the White Knife river, is a thriving port and the fifth largest settlement in the Seven Kingdoms.", "title": "Westeros " }, { "paragraph_id": 15, "text": "Illegitimate children born of a noble parent in the North are given the surname Snow.", "title": "Westeros " }, { "paragraph_id": 16, "text": "Winterfell is the ancestral castle of House Stark and the political capital of the North. Located at the geographical center of the North, it has a cold, subarctic climate with snowy winters and cool summers. The castle was built over a natural hot spring, whose scalding water runs inside the castle walls and warms its halls and rooms as well as the glass garden at its northwestern corner. There are several open pools where heated water collects within the godswood. The hot spring also prevents the ground from freezing. The castle has deep catacombs called \"the crypt\", where bodies of deceased Starks are entombed behind statues in their likeness with a direwolf at their feet and their swords in their hands. The tombs have been used since the old kings of the North, known as the Kings of Winter, were in power. They ruled since before the arrival of the Andals.", "title": "Westeros " }, { "paragraph_id": 17, "text": "To depict Winterfell, both the pilot and season 1 of the television adaptation used the 16th century clock tower and ancient courtyard of Castle Ward in County Down, Northern Ireland. Doune Castle in Stirling, Scotland, which was previously featured as Castle Anthrax in the film Monty Python and the Holy Grail, was also used for exterior scenes. Saintfield Estates stood in as Winterfell's godswood, an enclosed wooded area where characters can worship the old gods beside trees with faces carved in their bark. A car park stood in for Winterfell's courtyard, and a wine cellar was used to depict the Stark family crypt. Tollymore Forest featured prominently in the prologue of the pilot episode and in the pivotal scene where the Starks first find the direwolves. Cairncastle, meanwhile, served as the location where Ned Stark beheads the deserter Will. The interior of Winterfell, such as the Tower of the First Keep, the Great Hall, and Catelyn's bedchamber, were filmed at The Paint Hall studio. Set designer Gemma Jackson said, \"Winterfell was based on a Scottish castle.\"", "title": "Westeros " }, { "paragraph_id": 18, "text": "The Wall is a huge structure of stone, ice, and magic on the northern border of the Seven Kingdoms. It is home to the Night's Watch, a brotherhood sworn to protect the realms of men from the threats beyond the Wall.", "title": "Westeros " }, { "paragraph_id": 19, "text": "The Wall was inspired by Martin's visit to Hadrian's Wall, in the North of England close to the border with Scotland. Looking out over the hills, Martin wondered what a Roman centurion from the Mediterranean would feel, not knowing what threats might come from the north. This experience was so profound that a decade later, in 1991, he wanted to \"write a story about the people guarding the end of the world\", and ultimately \"the things that come out of the [fictional] north are a good deal more terrifying than Scotsmen or Picts\".", "title": "Westeros " }, { "paragraph_id": 20, "text": "Martin adjusted the size, length, and magical nature of the Wall for genre demands; Jon Snow's chapters describe it as approximately 300 miles (480 km) long and 700 feet (210 m) high in general, rising up to a perceived 900 feet (270 m) in spots due to huge foundation blocks. The top is wide enough for a dozen mounted knights to ride abreast (approximately 30 ft or 10 m), while the base is so thick that the Wall's gates are more like tunnels through the ice.", "title": "Westeros " }, { "paragraph_id": 21, "text": "The novels' legends claim that the First Men, or more specifically Brandon the Builder with the possible help of children of the forest and giants, constructed the Wall some 8,000 years before the events of the series.", "title": "Westeros " }, { "paragraph_id": 22, "text": "The Wall has since been maintained by the Night's Watch to guard the realms of men against threats from beyond, originally the Others, and later against wildling raids.", "title": "Westeros " }, { "paragraph_id": 23, "text": "A strip of land known as \"the Gift\", now stretching 50 leagues (about 150 miles (240 km)) south of the wall, was given to them in perpetuity thousands of years earlier for cultivation. In A Game of Thrones, of the nineteen castles built along the wall, only three are still manned: Castle Black with 600 men, and the Shadow Tower and Eastwatch-by-the-Sea with 200 men each. Parts of Castle Black have fallen into ruin.", "title": "Westeros " }, { "paragraph_id": 24, "text": "The TV series' Castle Black and the Wall were filmed in the abandoned Magheramorne Quarry near Belfast, Northern Ireland, whereas the scenes shot atop the wall were filmed inside Paint Hall Studios. The composite set (with both exteriors and interiors) consisted of a large section of Castle Black including the courtyard, the ravenry, the mess hall, and the barracks, and used the stone wall of the quarry as the basis for the ice wall that protects Westeros from the dangers that dwell beyond. They also made a functional elevator to lift the rangers to the top of the Wall. A castle with real rooms and a working elevator were built near a cliff 400 feet (120 m) high. \"Working construction lifts were discovered at a nearby work site and rise 18 feet; CGI fills in the rest to make the wall appear 700 feet high.\" The area around the elevator was painted white to make it look like ice. Martin was surprised by the height and thought: \"Oh I may have made the wall too big!\" Martin observed: \"It's a pretty spectacular, yet miserable location. It is wet and rainy, and the mud is thick....[it] really gets the actors in the mood of being at the end of the world in all of this cold and damp and chill.\"", "title": "Westeros " }, { "paragraph_id": 25, "text": "A Clash of Kings takes the story to the lands Beyond the Wall, although the first five books do not explore \"what lies really north ... but we will in the last two books\". The TV adaptation used Iceland as filming location for the lands Beyond the Wall. Martin, who has never been to Iceland, said Beyond the Wall was \"considerably larger than Iceland and the area closest to my Wall is densely forested, so in that sense it's more like Canada – Hudson Bay or the Canadian forests just north of Michigan. And then as you get further and further north, it changes. You get into tundra and ice fields and it becomes more of an arctic environment. You have plains on one side and a very high range of mountains on the other. Of course, once again this is fantasy, so my mountains are more like the Himalayas.\" In an HBO featurette, Martin stated the lands beyond the wall make up a big part of Westeros, being roughly the size of Canada. The Valley of Thenn is one such location beyond the Wall, and north of that is the Lands of Always Winter, where the Others come from.", "title": "Westeros " }, { "paragraph_id": 26, "text": "During the first season, the HBO team used places that they could decorate with artificial snow for the north of the Wall, but a bigger landscape was chosen for Season 2. \"Primary filming for these scenes, which encompass both the Frostfangs and the Fist of the First Men, occurred at the Svínafellsjökull calving glacier in Skaftafell, Iceland, followed by shooting near Smyrlabjörg and Vík í Mýrdal on Höfðabrekkuheiði. Benioff said, \"We always knew we wanted something shatteringly beautiful and barren and brutal for this part of Jon's journey, because he's in the true North now. It's all real. It's all in camera. We're not doing anything in postproduction to add mountains or snow or anything.\"", "title": "Westeros " }, { "paragraph_id": 27, "text": "The Iron Islands are a group of seven islands to the west of Westeros – Pyke, Great Wyk, Old Wyk, Harlaw, Saltcliffe, Blacktyde, and Orkmont – in Ironman's Bay off the west coast of the continent. Ruled by House Greyjoy of Pyke, the isles are described as bare and barren, with the local weather being \"windy and cold, and damp\". The members of this seafaring nation are known in the rest of Westeros as Ironmen, and to themselves as Ironborn. Illegitimate children born in the Iron Islands are given the surname Pyke.", "title": "Westeros " }, { "paragraph_id": 28, "text": "For fierce raids, the Ironmen are titled the \"terror of the seas\". They worship the Drowned God, who \"had made them to reave and rape, to carve out kingdoms and write their names in fire and blood and song\". The appendix of A Game of Thrones summarizes that the Ironmen once ruled over the Riverlands and much of the western coast of Westeros. When Aegon the Conqueror extinguished Harren the Black's line, he chose House Greyjoy as the new rulers of the Ironmen.", "title": "Westeros " }, { "paragraph_id": 29, "text": "Pyke is the seat of House Greyjoy. The television adaptation filmed the scenes of Pyke's port at Lordsport Harbour in Ballintoy Harbour, in Northern Ireland's County Antrim. The sea has worn away much of the rock on which Pyke originally stood, so the castle now consists mostly of a main keep on the main island and smaller towers perched on rocks surrounded by sea.", "title": "Westeros " }, { "paragraph_id": 30, "text": "Old Wyk is the smallest and holiest island in the Iron Islands. It is where Kingsmoots are held, and where the Grey King slew Nagga, a sea dragon, and made a court of his bones.", "title": "Westeros " }, { "paragraph_id": 31, "text": "The Riverlands are the populous and fertile areas surrounding the forks of the river Trident on Westeros. While they form one of the nine regions of Westeros, the Riverlands' central location and geographic features made the region an inter-kingdom battle zone that changed hands rather than becoming its own 'eighth' kingdom of the Seven Kingdoms. Centrally located between the Westerlands, the Crownlands, the Vale, and the North and lacking the natural defenses of other regions, they have seen frequent warfare. The first ruler to unite the Riverlands was Benedict Justman, but the Justman dynasty died out three centuries later. The Durrandons conquered the Riverlands, but lost rule of it to Harwyn \"Hardhand\" Hoare, King of the Iron Islands. At the time of Aegon's conquest, the Riverlands were ruled by Harwyn's grandson, Harren the Black, king of the Iron Islands, and the Tullys were local nobles who rebelled against him by joining Aegon the Conqueror. As with Westerosi customs to give bastards a surname showing their origins, illegitimate children born in the Riverlands are given the surname Rivers.", "title": "Westeros " }, { "paragraph_id": 32, "text": "Harrenhal is an enormous ruined castle and is the site of many important events in the novels. Harrenhal was built by Harren the Black, after his conquest of the Riverlands, intending to make it the largest fortification ever built in Westeros. The castle has been described as so large that an entire army was needed to garrison it. The Great Hall had 35 hearths and seated thousands. Shortly after the castle was completed, Aegon the Conqueror's dragon slew Harren, his sons, and his entire army by setting the castle alight.", "title": "Westeros " }, { "paragraph_id": 33, "text": "Since then, the ruins of the castle have been occupied by a variety of houses, all of which eventually became extinct. As a result, the people of Westeros believe the castle is cursed. The logistical and economic difficulties inherent in keeping such an enormous castle maintained and garrisoned has made it something of a white elephant. At the start of the War of the Five Kings, the castle is in ruin, with only a fraction of it habitable, and held by Lady Shella Whent, the last of her House, who is stripped of Harrenhal when the Lannisters seize her castle. The castle changes hands repeatedly over the course of the novels, many of those holding it meeting unpleasant ends.", "title": "Westeros " }, { "paragraph_id": 34, "text": "Riverrun is the ancestral stronghold of House Tully. The castle is located along one of the \"forks\" of the Trident and controls access to the interior of Westeros. The castle is bordered on two sides by the Tumblestone River and the Red Fork. The third side fronts on a massive manmade ditch. It was built by Ser Axel Tully on land he received from the Andal King Armistead Vance.", "title": "Westeros " }, { "paragraph_id": 35, "text": "The castle is the location of Robb Stark's great victory over House Lannister and the site of his crowning. By the end of A Feast for Crows, Brynden Tully surrenders the castle to Jaime Lannister to spare further bloodshed. Riverrun then passed into the hands of Emmon Frey, an ally of House Lannister.", "title": "Westeros " }, { "paragraph_id": 36, "text": "The Twins is a large double castle straddling the Green Fork river; the two halves of the castle are connected by a bridge that is the only crossing of the river for hundreds of miles. The Twins is the seat of House Frey, which has grown wealthy by charging a toll of all those who cross for the past six centuries. Because the Freys are both wealthy and numerous, theirs is one of the most powerful houses sworn to House Tully. The castle's strategic position gives House Frey enormous importance in times of war.", "title": "Westeros " }, { "paragraph_id": 37, "text": "When Robb Stark goes to The Twins to repair his alliance with House Frey, the Freys massacre him, his mother, and his army (and in the TV adaptation, his wife): an event known as \"The Red Wedding\", which violates native customs of guest right and incurs enmity throughout the Seven Kingdoms, especially in the Riverlands and North.", "title": "Westeros " }, { "paragraph_id": 38, "text": "The Vale is the area surrounded almost completely by the Mountains of the Moon in the east of Westeros. The Vale is under the rulership of House Arryn, one of the oldest lines of Andal nobility and formerly Kings of Mountain and Vale. Their seat, the Eyrie, is a castle high in the mountains, small but considered unassailable. The only way to reach the Vale is by a mountain road teeming with animals called 'shadowcats', rock slides, and dangerous mountain clans. The mountain road ends at the Vale's sole entrance, the Bloody Gate: a pair of twin watchtowers, connected by a covered bridge, on the rocky mountain slopes over a very narrow path. The protection of the surrounding mountains gives the Vale itself a temperate climate, fertile meadows, and woods. The snowmelt from the mountains and a constant waterfall that never freezes, named Alyssa's Tears, provide plentiful water. The Vale has rich black soil, wide slow-moving rivers, and hundreds of small lakes. Illegitimate children born in the Vale are given the surname Stone.", "title": "Westeros " }, { "paragraph_id": 39, "text": "Based on the German castle of Neuschwanstein, the Eyrie is the seat of House Arryn. It is situated on the Giant's Lance and reachable only by a narrow mule trail, guarded by the Gates of the Moon and three small castles, titled Stone, Snow, and Sky. Travelers must enter the Gates of the Moon and its upper bailey before reaching the narrow path up the mountain. The steps up the Giant's Lance starts directly behind the Gates of the Moon. The Eyrie clings to the mountain and is six hundred feet above Sky. The last part of the climb to the Eyrie is something of a cross between a chimney and a stone ladder, which leads to the Eyrie's cellar entrance. Due to the Mountains of the Moon's harsh winters, travel to and from the Eyrie is possible through the mountains only in summer.", "title": "Westeros " }, { "paragraph_id": 40, "text": "The Eyrie is the smallest of the great castles in the story, consisting of seven slim towers bunched tightly together. It has no stables, kennels, or smithies, but the towers can house 500 men, and the granary can sustain a small household for a year or more. The Eyrie does not keep livestock on hand; all dairy produce, meats, fruits, vegetables, etc., must be brought from the Vale below. Its cellars hold six great winches with long iron chains to draw supplies and occasionally guests from below. Oxen are used to raise and lower them. Winter snows can make supplying the fortress impossible. The Eyrie's dungeons, known as \"sky cells\", are left open to the sky on one side and have sloping floors that put prisoners in danger of slipping or rolling off the edge. Executions in the Eyrie are carried out via the Moon Door, which opens from the high hall onto a 600-foot drop.", "title": "Westeros " }, { "paragraph_id": 41, "text": "The Eyrie is made of pale stone and primarily decorated with the blue and white colors of House Arryn. Elegant details provide warmth and comfort through plentiful fireplaces, carpets, and luxurious fabrics. Many of the chambers have been described to be warm and comfortable, with magnificent views of the Vale, the Mountains of the Moon, or the waterfall. The Maiden's Tower is the easternmost of the seven slender towers, so all the Vale can be seen from its windows and balconies. The apartments of the Lady of the Eyrie open over a small garden planted with blue flowers and ringed by white towers, containing grass and scattered statuary, with the central statue of a weeping woman believed to be Alyssa Arryn, around low, flowering shrubs. The lord's chambers have doors of solid oak, and plush velvet curtains covering windows of small rhomboid panes of glass. The High Hall has a blue silk carpet leading to the carved weirwood thrones of the Lord and Lady Arryn. The floors and walls are of milk-white marble veined with blue. Daylight enters down through high narrow arched windows along the eastern wall, and there are some fifty high iron sconces where torches may be lit.", "title": "Westeros " }, { "paragraph_id": 42, "text": "The Eyrie was held by Lord Jon Arryn, who fostered Ned Stark and Robert Baratheon prior to Robert's Rebellion (also known as the War of the Usurper). After the war, Lord Arryn served as King Robert I Baratheon's Hand of the King (prime minister). After Lord Arryn was assassinated, his wife, Lady Lysa Arryn, took her sickly child, Robin, and fled to the Eyrie. Lysa refused to align herself with any of the claimants during the War of the Five Kings, but eventually pretends to a possible alliance with House Lannister after Lord Petyr Baelish agrees to marry her. Later Baelish kills Lysa after she attempts to murder her niece, Sansa Stark. As of Feast for Crows, Baelish rules in the Eyrie as the Lord Protector and Regent for the sickly, epileptic Lord Robert \"Robin\" Arryn, and plans for Sansa to marry Harold Harding, who will become heir to the Eyrie and the Vale in the event of young Robin Arryn's death.", "title": "Westeros " }, { "paragraph_id": 43, "text": "For the CGI compositions of the Vale of Arryn in the TV series, as seen in the establishing shot of the Eyrie and from the sky cells, the visual effects team used images and textures from the Greek rock formations of Meteora. Initially they had been considering the Zhangjiajie Mountains in China, but because the landscape base plates were shot in Northern Ireland, using Meteora resulted a better option. Set designer Gemma Jackson said, \"A lot of the mosaics in the Eyrie were based on a beautiful chapel I visited in Rome.\" The interior of the High Hall of the Arryns was filmed at The Paint Hall, occupying one of the four soundstages there. Martin acknowledged that the set differed significantly from its presentation in the books: \"In the books, the room is long and rectangular. But [The Paint Hall soundstage] had essentially a square space, which they chose to put a round hall in, with a staircase curving up to a throne that was high above.\"", "title": "Westeros " }, { "paragraph_id": 44, "text": "The Westerlands are the Westerosi lands to the west of the Riverlands and north of the Reach. They are ruled by House Lannister of Casterly Rock, formerly Kings of the Rock. People of this region are often called \"Westermen.\" Lannisport, lying hard by Casterly Rock, is the chief town of the region and one of the great ports and cities of Westeros. The Westerlands are rich in precious metals, mostly gold, which is the source of their wealth. Keeping with Westerosi customs to give bastards a surname showing their origins, illegitimate children born in the Westerlands are given the surname Hill.", "title": "Westeros " }, { "paragraph_id": 45, "text": "A stronghold carved from a mountain overlooking the harbor city of Lannisport and the sea beyond, Casterly Rock is the ancestral seat of House Lannister. According to popular legend, the hero known as Lann the Clever tricked the Casterlys into giving up the Rock, and took it for himself. The Rock is renowned as the wealthiest region due to its abundance of gold mining resources, and it is one of the strongest castles of the Seven Kingdoms. It has never been taken in battle, despite attacks by the Iron Islanders and the plans of Robb Stark in the War of the Five Kings. It was held by Lord Tywin Lannister before the War of the Five Kings, but after his death, Queen Regent Cersei Lannister made one of her cousins castellan of the castle. As of A Dance with Dragons, the narrative has not actually taken place in Casterly Rock, yet descriptions of it have been offered by the Lannisters in the POV chapters.", "title": "Westeros " }, { "paragraph_id": 46, "text": "West of Casterly Rock is the coastal city of Lannisport. A busy port under the governance of the Lannisters of Casterly Rock, Lannisport thrives as a protected and wealthy city. The city is also home to many lesser Lannisters and other people with similar surnames, such as Lannys.", "title": "Westeros " }, { "paragraph_id": 47, "text": "George R. R. Martin stated on his blog that he drew inspiration for Casterly Rock from the Rock of Gibraltar.", "title": "Westeros " }, { "paragraph_id": 48, "text": "The Reach is the southwestern region of Westeros along the valleys of the Mander (the largest river in Westeros) and the Honeywine. It is the second-largest of the kingdoms in terms of geographical area (behind only the North) and is the most fertile and heavily populated region of Westeros. The wealth and power of the Reach comes from its warm, sunny climate, which grants bountiful harvests of farm foods and the most sought-after wines. During times of war, the expansive lands of the Reach and its abundance of foods protects their inhabitants from initial famine and sickness. The Reach is considered the home of chivalry in Westeros, and is the place where knighthood is looked upon with the greatest reverence, and where the rules for tourneys are the most stringent and managed. The most prominent population center in the Reach is Oldtown, Westeros's oldest and second largest city and port as well as the home to the Maesters' Citadel and the former religious seat of the Faith of the Seven, situated at the mouth of the Honeywine estuary.", "title": "Westeros " }, { "paragraph_id": 49, "text": "The Reach was historically known as the Green Realm, ruled by King of the Reach from House Gardener in Highgarden. During Aegon's conquest, the last Gardener King, Mern IX, was killed along with all his heirs and kins on the Field of Fire. House Tyrell, the stewards to House Gardener, surrendered Highgarden to Aegon and were rewarded with both the castle and the position of overlords of the Reach. Illegitimate children born in the Reach are given the surname Flowers.", "title": "Westeros " }, { "paragraph_id": 50, "text": "During the reign of House Baratheon as the ruler of Westeros, the Reach is the second wealthiest region in the Seven Kingdom, behind only the mine-rich Westerlands. During the War of the Five Kings, in a significant political maneuver during the civil war, House Tyrell provides the starving populace of King's Landing with hundreds of carts of food, ensuring the positive image of House Tyrell foremost, and the alliance for the Iron Throne with House Baratheon as secondary. However, the Tyrells were responsible for the starvation in the first place, as part of their plan to help the pretender Renly Baratheon contend for the Iron Throne.", "title": "Westeros " }, { "paragraph_id": 51, "text": "Oldtown is one of the largest cities in Westeros and is by far the oldest, built by the First Men before the Andal Invasion. It survived the invasion by welcoming the Andals rather than resisting them. The city is located in the southwestern part of Westeros, at the mouth of the River Honeywine, where it opens onto Whispering Sound and the Sunset Sea beyond.", "title": "Westeros " }, { "paragraph_id": 52, "text": "Oldtown is primarily known as the location of the Citadel, home of the order of Maesters who serve as councillors, doctors, scientists, and postmasters for the Seven Kingdoms. The city's Starry Sept was the seat of the Faith of the Seven until the construction of the Great Sept of Baelor in King's Landing. Aegon the Conqueror's reign is dated from his entrance into the city of Oldtown and his acknowledgment as king by the High Septon.", "title": "Westeros " }, { "paragraph_id": 53, "text": "Oldtown is the second most important port in the Seven Kingdoms after King's Landing: trading ships from the Summer Islands, the Free Cities, the eastern cities, and the rest of Westeros constantly crowd into its harbors. The city itself is described as stunningly beautiful with a warm climate. Many rivers and canals crisscross its cobbled streets, and breathtaking stone mansions are common. The city lacks the squalor of King's Landing, which usurped its position as the preeminent city of Westeros.", "title": "Westeros " }, { "paragraph_id": 54, "text": "The largest structure in the city, and the tallest structure in Westeros, is the Hightower, a massive stepped lighthouse which extends some 800 feet (240 m) into the sky and is topped by a huge beacon which can be seen for many miles out to sea. Oldtown is ruled from the Hightower by House Hightower. Originally kings in their own right, they later swore fealty to the Gardeners of Highgarden, and became vassals of the Tyrells after the Conquest. The Hightowers are known for their loyalty and stalwartness. The current ruler of the city is Lord Leyton Hightower.", "title": "Westeros " }, { "paragraph_id": 55, "text": "Oldtown remained aloof from the War of the Five Kings, but late in the war the Ironborn under King Euron Greyjoy launched a massive raid along the coast, conquering the Shield Islands and parts of the Arbor before trying to blockade the mouth of the Honeywine. An attempt to attack the city harbor was repulsed by the city's defenders. Oldtown remains under threat from the Ironborn.", "title": "Westeros " }, { "paragraph_id": 56, "text": "The Stormlands are the large cape between the Blackwater Bay and the Sea of Dorne and the cape's associated western hinterlands, named for the severe weathers in the coastal areas. The region is bordered in the east by the Narrow Sea, especially a large semi-enclosed bay known as the Shipbreaker Bay behind the island of Tarth; from King's Landing and the Crownlands in the north by a large forest known as the Kingswood; from the Reach in the west by the headwaters of the Mander River; and Dorne in the south by the expansive Red Mountains. The southwestern Stormlands are a borderland area historically contested among the Stormlands, the Reach and Dorne, known as the Dornish Marches.", "title": "Westeros " }, { "paragraph_id": 57, "text": "Before Aegon's conquest, the Stormlands were ruled by the Storm Kings of House Durrandon founded by the legendary Durran Godsgrief. When Aegon the Conqueror invaded Westeros, his bastard half-brother Orys Baratheon slew the last Storm King in a duel and married the latter's daughter to establish House Baratheon, which has ruled the Stormlands as lord paramount afterwards. Highborn illegitimate children born in the Stormlands are given the surname Storm.", "title": "Westeros " }, { "paragraph_id": 58, "text": "Storm's End is the seat of House Baratheon and, before them, the ancestral seat of the Storm Kings extending back many thousands of years. According to legend, the first Storm King in the age of the First Men was Durran, who married Elenei, the daughter of the sea god and the goddess of the wind. In a rage her parents sent vast storms to shatter his keep and kill his wedding guests and family; whereupon Durran declared war against the gods and raised several castles over Shipbreaker Bay, each larger and more formidable than the last. Finally, the seventh castle stayed in place and resisted the storms. Some believe the Children of the Forest took a hand in its construction; others suggest that Brandon Stark, the builder of the Wall, advised Durran on its construction. The truth of the matter is unknown.", "title": "Westeros " }, { "paragraph_id": 59, "text": "Storm's End has never fallen to either siege or storm. Its outer defenses consist of a huge curtain wall, 100 feet (30 m) tall and 40 feet (12 m) thick on its thinnest side, nearly 80 feet (24 m) thick on its seaward side. The wall consists of a double course of stones with an inner core of sand and rubble. The wall is smooth and curving, the stones so well placed that the wind cannot enter. On the seaward side, there is a 150-foot (46 m) drop below the wall into the sea.", "title": "Westeros " }, { "paragraph_id": 60, "text": "The castle itself consists of one huge drum tower crowned with formidable battlements, and so large that it can comfortably contain stables, barracks, armory and lord's chambers in the same structure. Although never taken in battle, Storm's End has endured several sieges and battles in recent history. The last Storm King, Argilac the Arrogant, abandoned his impressive defenses to meet the Targaryen commander, Orys Baratheon, in open battle during Aegon Targaryen's War of Conquest, and lost. This led to Orys Baratheon marrying Argilac's daughter and becoming Lord of Storm's End.", "title": "Westeros " }, { "paragraph_id": 61, "text": "During the War of the Usurper, Storm's End was besieged for a year by the host of Lord Mace Tyrell, who commanded the landward forces, while Paxter Redwyne's fleet of the Arbor kept the castle cut off by sea. Stannis Baratheon, commanding the defense, refused to yield and his men were reduced to eating rats. A smuggler named Davos ran the blockade to resupply the castle and Stannis rewarded him by knighting him and giving him lands, thus founding House Seaworth, but he also cut off the fingertips of his left hand as punishment for all his previous smuggling. After the war, Stannis was furious when his brother Robert, now king, gave the castle to their younger brother Renly and placed Stannis in command of Dragonstone. This led to many years of bitterness on Stannis' part.", "title": "Westeros " }, { "paragraph_id": 62, "text": "During the War of the Five Kings, Storm's End supported Renly when he attempted to usurp the crown, and was besieged by Stannis. When the castellan, Cortnay Penrose, refused to yield even after Renly's death, he was killed by Stannis' ally, the priestess Melisandre, and the castle surrendered. Later, the castle was besieged by a strong army under Mace Tyrell, but he abandoned the siege after a few weeks to return to King's Landing after the arrest of his daughter Margaery by the High Septon. As of A Dance with Dragons, the castle remains in the hands of Stannis Baratheon.", "title": "Westeros " }, { "paragraph_id": 63, "text": "At the end of A Dance with Dragons an army lands in the Stormlands led by Jon Connington and a young man claiming to be Aegon Targaryen, the son of Rhaegar Targaryen and Elia Martell and heir to the Iron Throne. To attract support, Aegon plans to conquer Storm's End and raise the banner of House Targaryen above the battlements.", "title": "Westeros " }, { "paragraph_id": 64, "text": "In the TV adaptation, scenes in the Stormlands were filmed in Larrybane, Northern Ireland. The scene where Stannis' red priestess Melisandre gave birth to a shadow creature was filmed in the Cushendun Caves, also in Northern Ireland.", "title": "Westeros " }, { "paragraph_id": 65, "text": "The Crownlands are the lands in Westeros surrounding King's Landing, ruled directly by the crown of the Iron Throne. The Targaryen kings consolidated this as one of the nine regions of Westeros, after their conquest of the Seven Kingdoms, from sparsely populated pieces of the Riverlands and Stormlands. The Crownlands form the entire coastline of Blackwater Bay, and include the original Targaryen homeland on the island of Dragonstone, at the Narrow Sea entrance to Blackwater Bay. Besides King's Landing, which is the largest city in Westeros, the Crownlands include many towns and castles. The illegitimate children born in the Crownlands are given the surname Waters.", "title": "Westeros " }, { "paragraph_id": 66, "text": "Dragonstone was once the westernmost outpost of the ancient Freehold of Valyria. A century before the Doom, the Targaryen family moved to Dragonstone. When the Doom came upon Valyria, House Targaryen survived along with the last of the Valyrian dragons. Another century later, Aegon Targaryen and his sisters Rhaenys and Visenya launched a massive campaign of conquest from the island and eventually conquered all of Westeros except for Dorne, and North of the Wall. Aegon's progeny reigned as kings of the Seven Kingdoms for centuries.", "title": "Westeros " }, { "paragraph_id": 67, "text": "Dragonstone is a massive, forbidding fortress, taking up a large portion of the island of the same name. The castle is unique in that the builders and sorcerers of Valyria carved its towers and keeps into the shapes of dragons and made ferocious gargoyles to cover its walls using both magic and masonry. The castle's lower levels are warmed by residual volcanic activity deep below the keep. There is a small port and town outside of the castle. Additionally, in a cave at the beachfront of the castle, huge deposits of Dragonglass can be found.", "title": "Westeros " }, { "paragraph_id": 68, "text": "During the War of the Usurper, before the sack of King's Landing, the Targaryen Queen Rhaella, who was pregnant, and her son Viserys were sent to Dragonstone along with part of the Targaryen fleet and a garrison of loyal soldiers. But after King's Landing fell, Robert Baratheon dispatched his brother Stannis to take the island stronghold. After a storm destroyed the royalist fleet, the Targaryen garrison tried to betray Viserys and his newborn sister, Daenerys, to Stannis (the queen had died in childbirth). But Targaryen loyalists led by Ser Willem Darry took the children away. Stannis conquered Dragonstone easily, and King Robert granted him ownership of the castle. Stannis felt slighted because his younger brother Renly then inherited Storm's End, the ancient seat of House Baratheon. Ser Axell Florent, one of the uncles of Stannis' wife Selyse Florent, acted as castellan.", "title": "Westeros " }, { "paragraph_id": 69, "text": "Upon Robert's death, Stannis declared himself king of the Seven Kingdoms and condemned the queen's children as bastards born of incest, as he had discovered with Jon Arryn. Dragonstone became his main seat. He returned there after the disastrous Battle of the Blackwater. His councilor, the red priestess Melisandre of Asshai, tried to convince him to let her raise the \"stone dragon\" of the castle through blood magic, but Lord Davos Seaworth convinced Stannis to go north to the Wall to help the Night's Watch instead. After Stannis abandoned Dragonstone, leaving the Bastard of Nightsong Rolland Storm as castellan, Queen Regent Cersei Lannister dispatched a fleet to barricade it. However, Ser Loras Tyrell, impatient to free the fleet to protect his home castle of Highgarden, attacked Dragonstone directly. He took the castle but lost a thousand men and was himself reportedly gravely wounded. As of A Dance with Dragons, Dragonstone is now controlled by troops loyal to House Tyrell, and theoretically, once again under control of the Iron Throne.", "title": "Westeros " }, { "paragraph_id": 70, "text": "One scene set at Dragonstone, in which Stannis burns wooden sculptures of the Seven gods, was filmed at the beach of Downhill Strand. In Season 7 of the show, filming for Dragonstone took place at several locations in the Basque region of Spain: the islet of Gaztelugatxe in Bermeo, Itzurun Beach in Zumaia, and Muriola Beach in Barrika.", "title": "Westeros " }, { "paragraph_id": 71, "text": "King's Landing is the royal capital of Westeros and the Seven Kingdoms. King's Landing has an estimated population of 1 million people, making it the most populous city in Westeros. It is situated on the Blackwater river on the spot where Aegon the Conqueror landed in Westeros to begin his conquest. The main city is surrounded by a wall, which is manned by the City Watch of King's Landing, which is nicknamed the gold cloaks, after the cloaks they wear. Within the walls, the city's natural landscape is dominated by three hills, named after Aegon and his two sister-wives Rhaenys and Visenya. Poorer smallfolk (commoners) build shanty settlements outside the city. King's Landing is described as extremely populous but unsightly and dirty. The stench of the city's waste can be smelled far beyond its walls and there is a vast divide between the city's poor and the wealthy elite.", "title": "Westeros " }, { "paragraph_id": 72, "text": "The royal castle, called the Red Keep, sits on Aegon's Hill. It is the seat of the royal court. The Keep holds the Iron Throne. Aegon commissioned the throne's construction from the swords of his defeated enemies. According to legend, he kept the blades sharp because he believed that no ruler should ever sit comfortably. Centuries later, kings still cut themselves on the throne. It is a common belief that one who cuts himself on the throne has been \"rejected\" by the throne and is therefore not fit to rule.", "title": "Westeros " }, { "paragraph_id": 73, "text": "The city also holds the Great Sept of Baelor, where the Most Devout convene with the High Septon. It is the holiest sept of the Seven. The slums of King's Landing are called Flea Bottom, where residents are so poor they regularly subsist on \"bowls of brown\", a mystery stew that can include the meat of puppies and murder victims. King’s Landing has a temperate, mediterranean climate with long, warm, sunny summers and mild winters although snow does occasionally occur.", "title": "Westeros " }, { "paragraph_id": 74, "text": "Martin compared King's Landing to medieval Paris or London. It was inspired by the view of Staten Island from his childhood home in Bayonne, New Jersey.", "title": "Westeros " }, { "paragraph_id": 75, "text": "The first season of the TV adaptation used Malta's former capital Mdina to represent King's Landing. \"Like King's Landing, Mdina is a walled medieval city built upon a hill, but unlike King's Landing, Mdina is an inland city – so the production was limited to interior shots such as side streets and the town gate, which can be seen when Ned Stark arrives. Nearby Fort Manoel doubled as the great Sept of Baelor,\" which can be seen when Ned Stark is executed. Various other locations around Malta represent the Red Keep, \"including the real-life residence of the president of Malta, San Anton Palace. The gates of Fort Ricasoli doubled as the Red Keep's gates; Fort St. Angelo was used for the scenes of Arya Stark chasing cats; and St. Dominic monastery stood in for the scene where Ned Stark confronts Cersei Lannister in the godswood.\"", "title": "Westeros " }, { "paragraph_id": 76, "text": "\"In season two, filming for King's Landing and the Red Keep shifted from Malta to the historic parts of Dubrovnik and the Minčeta, Bokar, and Lovrijenac fortresses in Croatia, which allowed for more exterior shots of an authentic walled medieval city.\" Parts of Season three were filmed there, too, as well as in nearby Trsteno. \"Known as the Pearl of the Adriatic, the city proved to share many characteristics with the fictional capital: it had a well-preserved medieval look, with high walls and the sea at its side. According to David Benioff, executive producer of the show, \"King's Landing might be the single most important location in the entire show, and it has to look right\", and \"The minute we started walking around the city walls we knew that was it. You read the descriptions in the book and you come to Dubrovnik and that's what the actual city is. It has the sparkling sea, sun and beautiful architecture.\" Co-Executive Producer D.B. Weiss added \"To find a full-on, immaculately preserved medieval walled city that actually looks uncannily like King's Landing where the bulk of our show is set, that was in and of itself such an amazing find\". The Tourney of the Hand in season 1 was filmed in Shane's Castle, Northern Ireland.", "title": "Westeros " }, { "paragraph_id": 77, "text": "The Red Keep interior are filmed at Belfast's studio The Paint Hall. Set designer Gemma Jackson said, \"When I was thinking about King's Landing, the whole red aspect of it, that immediately made me think of Rajasthan. The floor [at King's Landing] was from the Pantheon in Rome.\" Martin said that \"Our throne room is a spectacular throne room – we actually redressed a throne room built for [another] film. And again, it occupied a quarter of the Paint Hall, so it's very big, but in my mind [in the books], it's Westminster Abbey, it's St. Paul's Cathedral.\"", "title": "Westeros " }, { "paragraph_id": 78, "text": "Dorne is the southernmost and least populated land of Westeros. The capital, Sunspear, is the seat of the ruling House Martell. As of the first five books, Doran Nymeros Martell is the Prince of Dorne and Lord of Sunspear. Doran's sister, Princess Elia, was married in a political alliance to Prince Rhaegar Targaryen, the Prince of Dragonstone and heir to the Iron Throne. They had two children, a daughter, Rhaenys, and a son, Aegon. During the Sack of King's Landing at the end of Robert's Rebellion, Princess Elia was raped and murdered by Gregor Clegane, a House Lannister bannerman (vassal). Her children were also killed in front of her. Prince Doran and his wife, Princess Mellaria, have three children, Arianne, Quentyn and Trystane. During the War of the Five Kings, Tyrion Lannister, as Hand of the King, turns the historical enmity of House Martell and Dorne into an alliance by sending King Joffrey's middle sibling and sister, Myrcella Baratheon, as the betrothed future bride to Trystane, the youngest child of Prince Doran, who is about her own age. The eldest child of Prince Doran, Arianne, is heir to House Martell, Sunspear and the rule of Dorne. The wealth of Dorne comes from their famous Sand Steeds, purebred horses of endurance, speed, and grace, and from spices, wines, fishing, fabrics, and textiles.", "title": "Westeros " }, { "paragraph_id": 79, "text": "Dorne is bordered by the Sea of Dorne to the north, the islands known as the Stepstones to the east, and stretches from the high mountains of the Dornish marches, the Red Mountains, separating Dorne from the remainder of the Seven Kingdoms by land. The two major passes through the Red Mountains that connect Dorne with the rest of the continent are the Stone Way Pass and the Prince's Pass. The Prince's Pass leads to the Reach, while the Stone Way exits the mountains near Summerhall. The southern coast of the continent is bordered by the Summer Sea. Described as tropical in climate by George R. R. Martin, Dorne has the highest temperatures of any kingdom in Westeros, and is arid, with a rocky, mountainous, terrain that includes the only desert on the continent. Its rivers provide some fertile lands and during a long summer there is enough rain and other supplies of water to keep Dorne habitable. Inland water is almost as valuable as gold, and wells are jealously guarded. Notable locations of Dorne are Starfall, the seat of House Dayne, and Yronwood, the seat of House Yronwood, the most powerful of the Martell bannermen. Planky Town is a trade port town at the mouth of the River Greenblood.", "title": "Westeros " }, { "paragraph_id": 80, "text": "Dornishmen have a reputation for hot-bloodedness. They differ both culturally and ethnically from other Westerosi due to the historical mass immigration of Rhoynish people. They have adopted many Rhoynish customs as well, including equal primogeniture. Dorne was the only kingdom in Westeros to successfully resist Aegon's conquest, even killing one of his dragons during the war. It was conquered by Daeron I over a century after the Targaryen invasion, but rose against him leading to his death. Finally under Daeron's cousin Daeron II they joined through marriage. This accomplishment has allowed Dorne to retain a measure of independence. Lords of the ruling House Martell still style themselves \"Prince\" and \"Princess\" in the Rhoynish fashion. Unlike most of the rest of Westeros, illegitimate children born in Dorne are treated nearly the same as legal offspring and given the surname Sand, as with Westerosi customs to give bastards a surname showing their origins.", "title": "Westeros " }, { "paragraph_id": 81, "text": "According to A Storm of Swords, \"There were three sorts of Dornishmen [...]. There were the salty Dornishmen who lived along the coasts, the sandy Dornishmen of the deserts and long river valleys, and the stony Dornishmen who made their fastnesses in the passes and heights of the Red Mountains. The salty Dornishmen had the most Rhoynish blood, the stony Dornishmen the least. All three sorts seemed well represented in Doran’s retinue. The salty Dornishmen were lithe and dark, with smooth olive skin and long black hair streaming in the wind. The sandy Dornishmen were even darker, their faces burned brown by the hot Dornish sun. They wound long bright scarfs around their helms to ward off sunstroke. The stony Dornishmen were biggest and fairest, sons of the Andals and the First Men, brownhaired or blond, with faces that freckled or burned in the sun instead of browning.\"", "title": "Westeros " }, { "paragraph_id": 82, "text": "In the show, Dornish scenes were filmed in the Alcázar of Seville, Seville, Spain.", "title": "Westeros " }, { "paragraph_id": 83, "text": "East of Naath, the Basilisk Isles have been a festering sore of the Summer Sea, and a safe haven for pirates, slavers, sellswords, and outlaws. Ruins have been found on the Isle of Tears, the Isle of Toads, and Ax Island. The Isle of Tears is the largest island, with steep valleys and black bogs. It was conquered by the Ghiscari and it was called Gorgai for two centuries, until the dragonlords of Valyria captured it and renamed it Gorgossos. It was used as a prison by the Freehold, a place where they sent their most despicable criminals.", "title": "Summer Sea" }, { "paragraph_id": 84, "text": "Naath, also known as the Isle of Butterflies, is an island off the north-west coast of Sothoryos that lies west of the Basilisk Isles. The Naathi people have dark skin and golden eyes. They practice extreme pacifism, making music instead of war and refusing to eat meat, only fruit. This makes them especially vulnerable to slavers from Essos. Daenerys' interpreter Missandei is from Naath.", "title": "Summer Sea" }, { "paragraph_id": 85, "text": "As indicated on a map in A Storm of Swords, the Summer Islands are a group of tropical islands situated to the south of Westeros, with a local fauna of talking birds, apes, and monkeys. The novels describe the island natives as dark-skinned people who speak their own language. They wear colored feathery clothes and live on fruit and fish. From their port city named Tall Trees Town, the Summer Isles export rare goods to Westeros such as wine, spices, feathers, but also a special kind of wood from which bows are made that have a longer range than most others. People of the Seven Kingdoms call the Summer Islanders' great vessels swan ships, \"for their billowing white sails and for their figureheads, most of which depicted birds\". Samwell Tarly, who spends two chapters in A Feast for Crows aboard a swan ship, describes the Summer Islander women as wanton, and their gods as strange; they \"revered the elderly and celebrated their dead\" through sexual intercourse. As a prostitute explains to Tyrion in A Clash of Kings, the Summer Islanders regard their sexuality as the gods' gift to worship them through mating, and hence many of their highborn youths and maidens serve in pleasure houses for a few years to honor the gods.", "title": "Summer Sea" }, { "paragraph_id": 86, "text": "Part of the narrative in A Song of Ice and Fire lies across the Narrow Sea from Westeros, an area comprising the large eastern continent named Essos. Being roughly the size of Eurasia, Essos has geography and climate that vary greatly. The western coastline is characterized by green rolling hills, the massive Forest of Qohor, and extensive island chains such as Braavos and Lys. The middle of the continent is covered by the flat grasslands of the Dothraki Sea and the arid lands known as the Red Waste to the east. Beyond the Red Waste lies the city of Qarth. The south is dominated by dry rolling hills and has a Mediterranean climate, with a coastline along the Summer Sea and Slaver's Bay. The north coast of the mainland is separated from the polar cap by the Shivering Sea. To the south, across the Summer Sea, lies the uncharted jungle continent of Sothoryos. Much of the fictional history of Essos relates to Valyria, a city located on a peninsula in southern Essos and the origin of House Targaryen before the destruction of the Valyrian Empire in an unspecified cataclysm. After the destruction of Valyria, the cities of Astapor, Yunkai, and Meereen regained independence and ruled their respective areas as city-states. The area is known in the books as Slaver's Bay.", "title": "Essos" }, { "paragraph_id": 87, "text": "Across the Narrow sea on the western side of Essos lie the nine Free Cities, independent city-states that are mostly on islands or along the coast. They are Lys, Myr, Pentos, Braavos, Lorath, Norvos, Qohor, Volantis and Tyrosh. Although most Free Cities are named early in the first novel, the books only provide a map of this region in A Dance with Dragons. Mountains to the east separate the coast from the plains of the Dothraki Sea, though gaps in the mountain range provide the Dothraki people some access to the Free Cities. The Free Cities were colonies built by the ancient Valyrian Freehold, and later declared independence after the Doom of Valyria. An exception to this is Braavos, which was founded by refugees fleeing Valyrian expansion, escaped slaves and other rabble. The languages of the Free Cities are derivatives of High Valyrian.", "title": "Essos" }, { "paragraph_id": 88, "text": "The Free Cities span an area characterized by the river Rhoyne, which the local character Yandry describes as \"the greatest river in the world\". Its banks are the homeland of the Rhoynar, who worship the river as \"Mother Rhoyne\". As mapped in A Dance with Dragons, the Rhoyne originates from the conjunction of two of its tributaries, the Upper Rhoyne and the Little Rhoyne, southeast of the ruins of Ghoyan Drohe. The headwaters of the Upper Rhoyne lie in Andalos, the homeland of the Andals between Braavos and Pentos. The Rhoyne's course runs southeast to turn due south after Dagger Lake, where river pirates hide on and around the many lake islands. The Rhoyne gains in width considerably as it gets fed by more tributaries, until it opens into the Summer Sea in a delta near the Free City of Volantis.", "title": "Essos" }, { "paragraph_id": 89, "text": "Unique among the Free Cities, Braavos was not a Valyrian colony, but a secret refuge from Valyrian expansion. It is a city spread over hundreds of tiny islands in a lagoon on the northwestern end of Essos, where the Narrow Sea and Shivering Sea meet. Braavos is home to the 'Iron Bank', one of the wealthiest banks in the known world. Braavos is also known for its swordsmen known as 'bravos', and its mysterious assassins, the Faceless Men. It is also famed for the Titan of Braavos, both a fortress and a statue. The ruler of Braavos is known as the Sealord and it is from the sea that the city's power and wealth flows. The hulls of Braavosi ships are painted purple and their merchant ships sail to many distant lands and bring their trade and wealth back home. Braavos has many moneylenders and the Iron Bank of Braavos lends money to foreign nations, especially The Crown, which has borrowed millions.", "title": "Essos" }, { "paragraph_id": 90, "text": "Braavosi dress in flashy colors while the very rich and powerful dress in black and in blues that are almost black. Officials of Braavos, called keyholders and justiciars, wear drab coats of brown or grey. The city is also renowned worldwide for its courtesans. Every courtesan has her own barge and servants to work them. The beauty of famed courtesans has inspired many a song. They are showered with gifts from goldsmiths and craftsmen beg for their custom. Nobility and rich merchants pay the courtesans large amounts of money to appear alongside them at events, and bravos are known to kill each other in their names. The character Syrio Forel, former first sword of the Sealord of Braavos, introduces Arya Stark to a unique form of Braavosi sword fighting, called Water Dancing. The style is a refined form of fencing in which the practitioner stands sideways and wields a slender blade. Pugnacious bravos fill the city, frequently dueling to display their skill.", "title": "Essos" }, { "paragraph_id": 91, "text": "Braavos was inspired by Venice, Italy. It was filmed in Croatian towns of Šibenik, and Kaštel Gomilica In the TV series, locations used as Braavos included the Croatian town of Šibenik and the Spanish town of Girona.", "title": "Essos" }, { "paragraph_id": 92, "text": "Pentos is a major trading port on a bay of the western coast. Dominated by an architecture of square brick towers, it is headed by a Prince who is chosen by the de facto rulers of the city, known as Magisters. Khalasars occasionally make their way this far from the Dothraki Sea, but the Pentoshi are spared much of the raiding and invasions by paying tribute to their khals. Men from Pentos wear dyed and forked beards. As in many Free Cities, slavery is outlawed, but the wealthy and powerful members of the city have the ability to flout these laws by keeping servants collared in bronze.", "title": "Essos" }, { "paragraph_id": 93, "text": "In the television adaptation, Daenerys's scenes in the pilot episode were filmed in Morocco. The production redressed and repainted the Jerusalem sets of Kingdom of Heaven near Ouarzazate, Morocco, to serve as the courtyard of Illyrio's mansion where Daenerys first meets Khal Drogo. When the pilot was delivered, HBO scrapped all of the footage shot in Morocco, and the Pentos scenes were re-shot in Malta. The exterior scenes at Illyrio's mansion in Pentos were shot at Verdala Palace, the 16th century summer palace of the president of Malta. The Azure Window, on the island of Gozo in Malta, was used for the location of Daenerys's wedding to Khal Drogo.", "title": "Essos" }, { "paragraph_id": 94, "text": "When Pentos reappeared in Season 5, it was filmed in Croatia.", "title": "Essos" }, { "paragraph_id": 95, "text": "Volantis is a port on the southern coast of Essos, and is the oldest and proudest of the Free Cities. A fortification known as the Black Wall protects the oldest parts of the city. The city is ruled by three triarchs, who are elected every year by free landholders of Volantis, and defended by slave soldiers called the \"Tiger cloaks\". Volantis is incredibly important to the slave market, and in the city there are five slaves to every free man. All Volantene slaves have facial tattoos denoting their profession: for instance, sex slaves have tears tattooed on their faces, and the tiger cloaks have tiger stripes. The worship of R'hllor is the most influential religion of Volantis, especially among slaves.", "title": "Essos" }, { "paragraph_id": 96, "text": "The TV adaptation used locations in Córdoba, Spain.", "title": "Essos" }, { "paragraph_id": 97, "text": "This section covers the Essos locations east of the Free Cities that Daenerys Targaryen passes through on her travels in A Game of Thrones and A Clash of Kings before moving on to Slaver's Bay.", "title": "Essos" }, { "paragraph_id": 98, "text": "Valyria is a peninsula in South-Central Essos, west of Slaver's Bay. Before the Doom of Valyria, it was the seat of the Valyrian Freehold, a massive empire thousands of years old. The Valyrians are characterized by their silver hair and violet eyes. Valyria was called the Freehold because every man who owned land was allowed to vote for their leaders. The Valyrians also used slaves to mine the Fourteen Flames, a series of volcanoes rich with ore. They subjugated the Ghiscari and the Rhoynar and established all of the Free Cities, save Braavos. They did this through their knowledge of dragonlore. Twoscore noble dynasties, known as dragonlords, rode and controlled dragons. Eventually, an event known as the Doom of Valyria, apparently involving a violent eruption of the Fourteen Flames, destroyed the Freehold and made Valyria an archipelago in the newly-formed Smoking Sea. The Targaryens are descendants of Old Valyria who escaped after Daenys the Dreamers' dream foretold of the eruption. The other noble families of Valyria mocked them, believing Daenys to be mad. Her father, Aenar Targaryen, believed her and successfully relocated the family to Dragonstone, an island on the east coast of Westeros, making them the only surviving dragonlords after the Doom.", "title": "Essos" }, { "paragraph_id": 99, "text": "The Dothraki Sea is a vast, flat grassland on Essos. It is inhabited by the Dothraki people, a copper-skinned race of warlike nomads with their own language and unique culture. The Dothraki live in hordes called khalasars, each led by a chief called a khal. Khalasars are broken into groups, called khas, which are each led by one of the khal's captains, called kos. Each khal and his khalasar owe fealty to a ruling council of royal priestesses, called the dosh khaleen, whose members are each a former khal's consort, called a khaleesi during the reign of her husband, one who became part of the dosh khaleen following his death.", "title": "Essos" }, { "paragraph_id": 100, "text": "Dothraki are expert riders and their horses are of prime importance in their culture, used for food, transportation, raw materials, warfare, and establishing social standing. They regularly raid other peoples.", "title": "Essos" }, { "paragraph_id": 101, "text": "George R. R. Martin said \"The Dothraki were actually fashioned as an amalgam of a number of steppe and plains cultures ... Mongols and Huns, certainly, but also Alans, Sioux, Cheyenne, and various other Amerindian tribes ... seasoned with a dash of pure fantasy. So any resemblance to Arabs or Turks is coincidental. Well, except to the extent that the [historic] Turks were also originally horsemen of the steppes, not unlike the Alans, Huns, and the rest.\" He also noted that \"In general, though, while I do draw inspiration from history, I try to avoid direct one-for-one transplants, [so] it would not be correct to say that the Dothraki are Mongols.\" There are several similarities with another fearsome, nomadic warriors – the Scythians.", "title": "Essos" }, { "paragraph_id": 102, "text": "The Dothraki have only one permanent city, called Vaes Dothrak, which serves as their capital. The Dosh Khaleen hold the city as their seat. It is filled with statues stolen from other cities the Dothraki conquered or raided. There is a law that no Dothraki may shed blood within the boundaries of Vaes Dothrak and that those who do are cursed. Two gigantic bronze stallions, whose hooves meet midair, form an arch above the entryway to the city. For the first season of the TV adaptation, Sandy Brae in the Mourne Mountains of Northern Ireland was chosen to stand in for Vaes Dothrak. The bronze stallions making up the Horse Gate as the main entrance of Vaes Dothrak, were later added using CGI on two pedestals erected on location.", "title": "Essos" }, { "paragraph_id": 103, "text": "Lhazar is an area of the semi-arid lands south of the Dothraki Sea. A region of pastures and hills, it is inhabited by the Lhazareen, a peaceful people with bronze skin, flat faces, and almond eyes. They are predominantly shepherds, called the Lamb Men by the Dothraki, who frequently prey on them. They worship a god called the Great Shepherd and believe that all of humanity is part of a single flock. The scenes at the village of the Lamb Men that is sacked by the Dothraki were filmed in Malta, at the farming town of Manikata.", "title": "Essos" }, { "paragraph_id": 104, "text": "Slaver's Bay is a marginal sea of the Summer Sea, lying to the south of the Dothraki Sea, to the west of Lhazar and thousands of leagues to the east of the Free Cities. The climate is very hot. After a first mention in A Game of Thrones in relation to slavery, Daenerys Targaryen conquers the three great Slaver's Bay port city-states Astapor, Yunkai, and Meereen in A Storm of Swords. She stays in Meereen throughout most of A Dance with Dragons.", "title": "Essos" }, { "paragraph_id": 105, "text": "The cities were built from the rubble of Old Ghis, an ancient rival of Valyria that was crushed by Valyria thousands of years before the series' events. The economies of the cities are largely based on slave labor and the slave trade. Treatment of slaves is often harsh, while citizens live in relative luxury. Professional soldiers of all three cities wear outlandish costumes and hairstyles that limit their usefulness in battle. The cities' militaries are highly dependent on additional slave and mercenary armies for the actual fighting.", "title": "Essos" }, { "paragraph_id": 106, "text": "Present inhabitants of the bay are a mixed race that no longer speak the old Ghiscari tongue but variations of High Valyrian with a characteristic growl. The ancient folk of Ghis, who name themselves the harpy's sons in Astapor, are said to have bristly red-black hair. The Good Masters of Astapor all appear alike to Daenerys as \"thick fleshy men with amber skin, broad noses, dark eyes. Their wiry hair was black or a dark red, or that queer mixture of red and black that was peculiar to Ghiscari\". Only the freeborn men of Astapor are permitted to wear garments called tokars, whose fringes display their status. Many Astapori women veil their face for the dust. The Astapori are drenched in sweet perfumes.", "title": "Essos" }, { "paragraph_id": 107, "text": "Astapor lies on the banks of the Worm River, a wide, slow, and crooked stream with wooded islands. Entering Astapor at the beginning of A Storm of Swords, Daenerys experiences it as an ancient and dilapidated city that has long passed its glory days. The city is dominated by its red brick architecture, and Arstan Whitebeard explains to Daenerys that the saying \"Brick and blood built Astapor, ... and brick and blood her people\" refers to the slaves who make the bricks. Astapor's stepped pyramids, its fighting pits, streets, the surrounding walls and the Plaza of Pride are all made of red bricks. The so-called Plaza of Punishment at Astapor's main gates is even larger than the Plaza of Pride.", "title": "Essos" }, { "paragraph_id": 108, "text": "The Plaza of Pride, which has a red-brick fountain and a huge bronze harpy statue in its center, serves as an open air slave market and a marshaling area for the Unsullied, elite eunuch spearmen known for discipline and effectiveness. Astapor is the only city to sell Unsullied, but also sells bed slaves, fieldhands, scribes, craftsmen, and tutors. The Unsullied require a huge investment in both time and money by the Astapori who raise and train them, but they earn the most profitable of returns for the Good Masters of Astapor. The Unsullied wear spiked bronze hats, and they obey at all costs, even if it demands their death. They are given new slave names each day to be reminded of their worthlessness. In times of attack, unsold Unsullied are deployed to the massive, crumbling red-brick walls that the Astapori no longer man.", "title": "Essos" }, { "paragraph_id": 109, "text": "Daenerys decides to buy all of Astapor's trained and untrained Unsullied, over 8600 in number, and tells them to kill all adult Astapori slavers and soldiers when she leaves the city. She gives the power over Astapor to a council of former slaves led by a healer, a scholar and a priest, and tens of thousands of former slaves join her on her travels to Yunkai. A former butcher named Cleon fends off a scheme to have the Good Masters re-established, and was crowned as the King of Astapor in reward.", "title": "Essos" }, { "paragraph_id": 110, "text": "The TV show used the coastal town of Essaouira, Morocco to film scenes in Astapor.", "title": "Essos" }, { "paragraph_id": 111, "text": "The smallest of the three cities, Yunkai, like Meereen, does not trade in Unsullied but is known for its fighting pits and its pleasure houses, both of which turn out slaves at a brisk pace. The city is similar to Astapor in architecture except for its smaller size and its use of yellow brick in its buildings instead of red. The slavers of Yunkai are known as the Wise Masters. Because of the city's lack of Unsullied, it relies on a mixed professional and slave army of approximately 4,000 with at least 1,000 mercenaries. Typical for Ghiscari, Yunkai soldiers wear impractical armor and oiled hair teased into enormous shapes, limiting their effectiveness.", "title": "Essos" }, { "paragraph_id": 112, "text": "Yunkish scenes were filmed in Aït Benhaddou, Morocco in the TV show.", "title": "Essos" }, { "paragraph_id": 113, "text": "The largest of the three slaver cities, Meereen has a population equaling that of Astapor and Yunkai combined. The city has architecture similar to that of its neighbors, but it is made of bricks of many colors. Its landscape is dominated by a massive pyramid, named the Great Pyramid, and the Temple of Graces, which is capped by a golden dome. Meereen is unique among the Ghiscari cities in that it is filled with many temples and pyramids. The slavers of Meereen are known as the Great Masters. It is built on the banks of the river Skahadhazan.", "title": "Essos" }, { "paragraph_id": 114, "text": "For the HBO television series, many of the scenes in Meereen were filmed in Split and the Fortress of Klis, Croatia. In Season 5, Daznak's Pit in the city was shot in the Plaza de Toros in Osuna, Spain.", "title": "Essos" }, { "paragraph_id": 115, "text": "The Red Waste is a great desert-like area in the eastern part of Essos. Not much is known about it, since it was only briefly seen in A Clash of Kings when Daenerys Targaryen and her khalasar crossed it. The only known settlement in the region, Vaes Tolorro, is in ruins.", "title": "Essos" }, { "paragraph_id": 116, "text": "First mentioned in A Game of Thrones, the city of Qarth has not yet appeared on any maps in the books. However, the HBO Viewer's Guide world map and the opening titles of the TV series' second season show Qarth located at a strait between the Summer Sea and the Jade Sea in the south-east of Essos. Upon Daenerys' first visit to Qarth in A Clash of Kings, the warlock Pyat Pree describes his city as the center of the world and as a gateway of commerce and culture between the east and west, and the north and south. The reader learns through Daenerys's eyes that the city is surrounded by three graded walls of thirty to fifty feet in height, respectively engraved with portraits of animals, war, and lovemaking. The city's buildings are of many colors, including rose, violet, and umber. Slender towers rise throughout the city, fountains adorn every square, and thousands of colored birds, blooming trees and flowers fill the city. The TV adaptation filmed Qarth on the island of Lokrum near Dubrovnik and constructed a set at the Dubac quarry in Croatia to double for the gates of Qarth.", "title": "Essos" }, { "paragraph_id": 117, "text": "The Qartheen are described as \"tall pale folk in linen and samite and tiger fur\", with the women wearing gowns that leave one breast bare, while the men sport beaded silk skirts. Daenerys perceives them as \"nothing if not polite\". Slaves serve their needs. The Pureborn, descendants of the city's ancient kings and queens, govern Qarth and also command the city's defenses. Three principal merchant groups battle amongst themselves and against the Pureborn for dominance of the city: the Thirteen, the Ancient Guild of Spicers, and the Tourmaline Brotherhood. Qarth's warlocks, whose lips are turned blue from a potion called \"the shade of the evening\", are said to brood over these factions; they are still feared although their power and prestige have waned over the years. Qarth is also home to the Sorrowful Men, a guild of assassins named so for whispering \"I am so sorry,\" before killing their victims. Daenerys leaves Qarth again at the end of A Clash of Kings.", "title": "Essos" }, { "paragraph_id": 118, "text": "Asshai and the Shadow Lands are mysterious locations in the Ice and Fire world. They are first mentioned in A Game of Thrones and were first mapped in The Lands of Ice and Fire, lying on the far east of the known world. Martin is unsure if the books will ever take the readers to Asshai, but said that readers may learn more through the POV character Melisandre (who originates from Asshai) or through the memories and mentions of other characters. Jorah Mormont describes Asshai as a port city far to the south of the Dothraki sea, at the end of the known world. Asshai exports such goods as black amethysts, amber, and dragonglass. At another time, Jorah Mormont tells Daenerys of great kingdoms to the east of the Red Waste, and lists Asshai by the Shadow as one of the cities full of wonders there. According to Martin, all ship travels between Westeros and Asshai go via the Summer Sea and the Jade Sea through the straits at Qarth, and that the common folk still believe the world to be flat. However, according to Martin, \"Asshai is not nearly important to trade as Yi Ti, and the rich port cities of Yi Ti (and Leng) and more easily reached via Qarth.\" Quaithe of the Shadow prophesies Daenerys in Qarth that \"To go north, you must journey south. To reach the west, you must go east [...] and to touch the light you must pass beneath the shadow.\" When Daenerys interprets this to mean she must go to Asshai, Quaithe says she would find the truth there.", "title": "Essos" }, { "paragraph_id": 119, "text": "There are many tales about the Shadow Lands, though how much truth they hold is unclear. The Dothraki believe that ghost grass covers the Shadow Lands, with stalks that glow in the dark and grow taller than a man on horseback. Daenerys heard that \"spellsingers, warlocks, and aeromancers practiced their arts openly in Asshai, while shadowbinders and bloodmages worked terrible sorceries in the black of night\". There are also Westerosi maesters in Asshai. The mages of Asshai teach others their healing powers, but also their spells requiring blood sacrifice. Ancient books of Asshai record the Azor Ahai prophecy followed by members of the R'hllor faith. Daenerys heard that dragons themselves originated from the Shadow Lands beyond Asshai and the islands of the Jade Sea, and they possibly still live there. Bran dreams of flying Dragons in Asshai. The petrified dragon eggs Illyrio gives to Daenerys are said to come from the Shadow Lands. The \"dour and frightening\" Shadow Men cover their bodies in tattoos and wear lacquered wooden masks, and the appearance of the Asshai'i is described as dark and solemn. The Dothraki believe the Asshai'i to be the spawn of shadows. The Asshai'i have a language of their own.", "title": "Essos" }, { "paragraph_id": 120, "text": "Ibben is a collection of islands north of Essos in the Bay of Whales. The largest of these islands is Ib, which contains the cities Port of Ibben and Ib Nor. Until the Doom of Valyria, Ibben was ruled by a God-King. Now power is held by the Shadow Council, which is made up of nobles, priests, and wealthy guildsmen. Ibben is first mentioned in A Game of Thrones, where Tyrion talks of rumors that mammoths \"roam the cold wastes beyond the Port of Ibben\". In 2002, Martin said the narrative would \"probably not\" take readers to Ibben, which he described as a \"cold, mountainous, Iceland-sized island\" (i.e. 40,000 square miles) in the Shivering Sea, with the Port of Ibben as the major city; some Ibbenese also live on smaller islands nearby or in colonies on Essos. Ibben is unmapped in the books as of A Dance with Dragons, but similar to Martin's descriptions, the HBO Viewer's Guide world map gives the island's location as to the north-east of Essos. Martin said that due to a large whale population in the Shivering sea, many of the Ibbenses were whalers. The Ibbenses are known to chew whale blubber in order to maintain their metabolism in the cold climate. Several characters see Ibbenese whalers and cogs at the ports of King's Landing, Braavos, Maidenpool, Eastwatch-by-the-Sea, and the Iron Islands. The novels describe the people of Ibben as squat and hairy; Arya even meets an Ibbenese woman with a mustache. Tyrion and Varys meet foul-smelling Ibbenese, who \"were as fond of axes as they were of each other\". Arya sees \"a dark brutal axeman from Ib\" in her dreams. The Ibbenese are said to speak with low, raspy voices and to have their own language.", "title": "Essos" }, { "paragraph_id": 121, "text": "The novels repeatedly describe Yi Ti as an empire with cities full of wonder, lying in the far east. As of A Dance with Dragons, Yi Ti has not appeared on any maps in the books, but Martin specified that \"Yi Ti is to the south east of Qarth, generally, across the Jade Sea.\" The empire is first mentioned in A Game of Thrones, talking of rumors that \"basilisks infested the jungles of Yi Ti\". Sailor stories presented in A Feast for Crows mention that a grey plague has hit Yi Ti. The god of the people of Yi Ti is called the Lion of Night. Daenerys sees people of Yi Ti as bright-eyed men in monkey-tail hats in the markets of Vaes Dothrak. Yi Ti has more cities than any other land in the known world, and according to Lomas Longstrider they are much larger and more splendid than cities in the west. According to Colloquo Votar there are three older cities buried beneath every YiTish city. The capital of the Golden Empire of Yi Ti is Yin, along the Jade Sea. Martin is unsure \"to what extent those peoples [like of Yi Ti] will ever enter this present story, however... their lands are very far away.\"", "title": "Essos" }, { "paragraph_id": 122, "text": "North of Yi Ti, the Plains of Jogos Nhai are windswept, with rolling hills. They are dominated by a race of mounted warriors called the Jogos Nhai. The Jogos Nhai live in yurts and tents, and are a nomadic people. They are short, squat, and have large heads and small faces. Men and women both have pointed skulls, a result of their custom of binding the heads of newborns. They also ride zorses, a striped mount that can withstand much more than average horse. The Jogos Nhai do not fight among themselves and live in small clans bound by blood. They live in a state of perpetual war with outsiders and had been raiding many YiTish cities and have reduced around a hundred towns to ruin. Each tribe is commanded by a jhat, or war chief, and a moonsinger, who is a priestess, healer, and judge. Moonsingers are generally female, and jhats are mostly male. (Paraphrased from The World of Ice and Fire)", "title": "Essos" }, { "paragraph_id": 123, "text": "To the south of Essos is the continent of Sothoryos (mistakenly spelled Sothoros in early novels). Sothoryos is the third continent of the known world, and is vast, plague-ridden, covered in jungles, and largely unexplored. It is reported to be as large as Essos and described as a \"land without end\" by Jaenara Belaerys, a Valyrian dragonlord from before the Doom of Valyria.", "title": "Sothoryos " }, { "paragraph_id": 124, "text": "The continent is first named on a map in A Storm of Swords (2000), showing the cities of Yeen and Zamettar on it. The narrative itself first refers to the continent in A Feast for Crows (2005). Martin had described Sothoryos in 2002 as \"the southern continent, roughly equivalent to Africa, jungly, plague-ridden, and largely unexplored.\" The novels provide little other information. The swampy nature of Sothoryos is briefly referenced by Victarion in A Dance with Dragons, and teak from Sothoryos is said to be used to build ships. A corsair's road runs along the continent's northern coast. A Dance with Dragons refers to the diseases on Sothoryos in regards to the wealthy but sick Yunkai slave trader Yezzan zo Qaggaz. Victarion describes some people as \"squat and hairy as the apes of Sothoros\", and some people fighting in Daznak's Pit for Daenerys's entertainment in A Dance with Dragons are described as \"brindle-skinned half-men from the jungles of Sothoros\". Martin said that, unlike other peoples in the novels, the brindled men of Sothoryos were pure fantasy constructs.", "title": "Sothoryos " }, { "paragraph_id": 125, "text": "The map collection The Lands of Ice and Fire also shows the north tip of a landmass named \"Ulthos\" to the south of Essos and east of Sothoryos. Asked whether this was another continent, Martin replied, \"Well, it's a large landmass. I am a little unclear on the formal definition of 'continent' as opposed to 'big island.' Also on the size of Ulthos, which after all sits at the edge of the known world. Terra incognita and all that.\"", "title": "Ulthos " } ]
The fictional world in which the A Song of Ice and Fire novels by George R. R. Martin take place is divided into several continents, known collectively as The Known World. Most of the story takes place on the continent of Westeros and in a large political entity known as the Seven Kingdoms. Those kingdoms are spread across nine regions: the North, the Iron Islands, the Riverlands, the Vale, the Westerlands, the Stormlands, the Reach, the Crownlands, and Dorne. A massive wall of ice and old magic separates the Seven Kingdoms from the largely unmapped area to the north. The vast continent of Essos is located east of Westeros, across the Narrow Sea. The closest foreign nations to Westeros are the Free Cities, a collection of nine independent city-states along the western edge of Essos. The lands along the southern coastline of Essos are called the Lands of the Summer Sea and include Slaver's Bay and the ruins of Valyria. The latter is the former home of the ancestors of House Targaryen. To the south of Essos are the continents of Sothoryos and Ulthos, which in the narrative are largely unexplored. The planet experiences erratic seasons of unpredictable duration that can last for many years. At the beginning of A Song of Ice and Fire, Westeros has enjoyed a decade-long summer, and many fear that an even longer and harsher winter will follow. George R. R. Martin set the Ice and Fire story in an alternative world of Earth, a "secondary world", such as that which J. R. R. Tolkien pioneered with Middle-earth. Martin has also suggested that world may be larger than the real world planet Earth. The Ice and Fire narrative is set in a post-magic world where people no longer believe in supernatural things such as the Others. Although the characters understand the natural aspects of their world, they do not know or understand its magical elements. Religion, though, has a significant role in the life of people, and the characters practice many different religions.
2001-06-15T17:48:21Z
2023-10-27T14:00:16Z
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https://en.wikipedia.org/wiki/World_of_A_Song_of_Ice_and_Fire
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Grandmaster (chess)
Grandmaster (GM) is a title awarded to chess players by the world chess organization FIDE. Apart from World Champion, Grandmaster is the highest title a chess player can attain. Once achieved, the title is held for life, though exceptionally the title can be revoked for cheating. The title of Grandmaster, along with the lesser FIDE titles of International Master (IM), FIDE Master (FM), and Candidate Master (CM), is open to all players regardless of gender. The great majority of grandmasters are men, but 40 women have been awarded the GM title as of 2022, out of a total of about 2000 grandmasters. There is also a Woman Grandmaster title with lower requirements awarded only to women. There are also Grandmaster titles for composers and solvers of chess problems, awarded by the World Federation for Chess Composition (see List of grandmasters for chess composition). The International Correspondence Chess Federation (ICCF) awards the title of International Correspondence Chess Grandmaster (ICCGM). Both of these bodies are now independent of FIDE, but work in co-operation with it. "Super grandmaster" is an informal term to refer to the world's elite players. In the past this would refer to players with an Elo rating of over 2600, but as the average Elo rating of the top players has increased it has typically come to refer to players with an Elo rating of over 2700. Super GMs, the number of whom has grown considerably over the years, have some name recognition in the world of sport and are typically the highest earners in chess. FIDE titles are only awarded at the quarterly FIDE Council meetings. Players who have qualified for the GM title but have not yet been awarded it are informally referred to as "GM-elect". Usage of grandmaster for an expert in some field is recorded from 1590. The first known use of the term grandmaster in connection with chess was in the 18 February 1838 issue of Bell's Life, in which a correspondent referred to William Lewis as "our past grandmaster". Subsequently, George Walker and others referred to Philidor as a grandmaster, and the term was also applied to a few other players. The Ostend tournament of 1907 was divided into two sections: the Championship Tournament and the Masters' Tournament. The Championship section was for players who had previously won an international tournament. Siegbert Tarrasch won the Championship section, over Carl Schlechter, Dawid Janowski, Frank Marshall, Amos Burn, and Mikhail Chigorin. These players were described as grandmasters for the purposes of the tournament. The San Sebastián 1912 tournament won by Akiba Rubinstein was a designated grandmaster event. Rubinstein won with 12½ points out of 19. Tied for second with 12 points were Aron Nimzowitsch and Rudolf Spielmann. By some accounts, in the St. Petersburg 1914 chess tournament, the title Grandmaster was formally conferred by Russian Tsar Nicholas II, who had partially funded the tournament. The Tsar reportedly awarded the title to the five finalists: Emanuel Lasker, José Raúl Capablanca, Alexander Alekhine, Siegbert Tarrasch, and Frank Marshall. Chess historian Edward Winter has questioned this, stating that the earliest known sources that support this story are an article by Robert Lewis Taylor in the June 15, 1940, issue of The New Yorker and Marshall's autobiography My 50 Years of Chess (1942). Before 1950, the term grandmaster was sometimes informally applied to world class players. The Fédération Internationale des Échecs (FIDE, or International Chess Federation) was formed in Paris in 1924, but at that time did not award formal titles. In 1927, the Soviet Union's Chess Federation established the title of Grandmaster of the Soviet Union, in the form of the German loan word "Großmeister". At the time Soviet players were not competing outside their own country. This title was abolished in 1931, after having been awarded to Boris Verlinsky, who won the 1929 Soviet Championship. The title was brought back in 1935, and awarded to Mikhail Botvinnik, who thus became the first "official" Grandmaster of the USSR. Verlinsky did not get his title back. In 1950 FIDE created the titles of Grandmaster (GM), International Master (IM) and Woman Master (WM, later known as Woman International Master or WIM). The grandmaster title is sometimes called "International Grandmaster" (IGM), possibly to distinguish it from similar national titles, but the shortened form is far more common today. Titles were awarded by a resolution of the FIDE General Assembly and the Qualification Committee, with no formal written criteria. FIDE first awarded the Grandmaster title in 1950 to 27 players. These players were: Since FIDE did not award the Grandmaster title posthumously, world-class players who died prior to 1950, including World Champions Steinitz, Lasker, Capablanca, and Alekhine, never received the title. A few strong still living players such as British India's Mir Sultan Khan, Germany's Paul Lipke and France's Eugene Znosko-Borovsky were never awarded titles. Title awards under the original regulations were subject to political concerns. Efim Bogoljubow, who had emigrated from the Soviet Union to Germany, was not entered in the first class of Grandmasters, even though he had played two matches for the World Championship with Alekhine. He received the title in 1951, by a vote of thirteen to eight with five abstentions. Yugoslavia supported his application, but all other Communist countries opposed it. In 1953, FIDE abolished the old regulations, although a provision was maintained that allowed older masters who had been overlooked to be awarded titles. The new regulations awarded the title of International Grandmaster of the FIDE to players meeting any of the following criteria: After FIDE issued the 1953 title regulations, it was recognized that they were somewhat haphazard, and work began to revise the regulations. The FIDE Congress in Vienna in 1957 adopted new regulations, called the FAV system, in recognition of the work done by International Judge Giovanni Ferrantes (Italy), Alexander (probably Conel Hugh O'Donel Alexander), and Giancarlo Dal Verme (Italy). Under the 1957 regulations, the title of International Grandmaster of the FIDE was automatically awarded to: The regulations also allowed titles to be awarded by a FIDE Congress on recommendation by the Qualification Committee. Recommendations were based on performance in qualifying tournaments, with the required score depending on the percentage of Grandmasters and International Masters in the tournament. Concerns were raised that the 1957 regulations were too lax. At the FIDE Congress in 1961, GM Milan Vidmar said that the regulations "made it possible to award international titles to players without sufficient merit". At the 1964 Congress in Tel Aviv, a subcommittee was formed to propose changes to the regulations. The subcommittee recommended that the automatic award of titles be abolished, criticized the methods used for awarding titles based on qualifying performances, and called for a change in the makeup of the Qualification Committee. Several delegates supported the subcommittee recommendations, including GM Miguel Najdorf who felt that existing regulations were leading to an inflation of international titles. At the 1965 Congress in Wiesbaden FIDE raised the standards required for international titles. The International Grandmaster title regulations were: To fulfill requirement 2b, the candidate must score one GM norm in a category 1a tournament or two norms within a three-year period in two Category 1b tournaments, or one Category 2a tournament and one Category 1b tournament. The categories of tournaments are: Since FIDE titles are for life, a GM or IM does not count for the purposes of this requirement if he had not had a GM or IM result in the five years prior to the tournament. In addition, no more than 50 percent plus one of the players can be from the same country for tournaments of 10 to 12 players, or no more than 50 percent plus two for larger tournaments. Seventy-four GM titles were awarded in 1951 through 1968. During that period, ten GM titles were awarded in 1965, but only one in 1966 and in 1968. The modern system for awarding FIDE titles evolved from the "Dorazil" proposals, presented to the 1970 Siegen Chess Olympiad FIDE Congress. The proposals were put together by Wilfried Dorazil (then FIDE Vice-President) and fellow Committee members Grandmaster Svetozar Gligorić and Professor Arpad Elo. The recommendations of the Committee report were adopted in full. In essence, the proposals built on the work done by Professor Elo in devising his Elo rating system. The establishment of an updated list of players and their Elo rating enabled significantly strong international chess tournaments to be allocated a Category, based on the average rating of the contestants. For instance, it was decided that 'Category 1' status would apply to tournaments with an average Elo rating of participants falling within the range 2251–2275; similarly Category 2 would apply to the range 2276–2300 etc. The higher the tournament Category, the stronger the tournament. Another vital component involved the setting of meritorious norms for each Category of tournament. Players must meet or surpass the relevant score to demonstrate that they had performed at Grandmaster (GM) or International Master (IM) level. Scores were expressed as percentages of a perfect maximum score and decreased as the tournament Category increased, thereby reflecting the strength of a player's opposition and the relative difficulty of the task. Tournament organisers could then apply the percentages to their own tournament format and declare in advance the actual score that participants must achieve to attain a GM or IM result (nowadays referred to as a norm). To qualify for the Grandmaster title, a player needed to achieve three such GM results within a rolling period of three years. Exceptionally, if a player's contributory games totalled 30 or more, then the title could be awarded on the basis of two such results. There were also circumstances where the system could be adapted to fit team events and other competitions. The full proposals included many other rules and regulations, covering such topics as: To become a grandmaster, a player must achieve both of the following: The Grandmaster title is also automatically conferred, without needing to fulfill the above criteria, when winning the Women's World Championship, the World Junior Championship, or the World Senior Championship, or a Continental Chess Championship, given that the player's peak FIDE rating is at least 2300. Current regulations can be found in the FIDE Handbook. FIDE titles including the grandmaster title are valid for life, but FIDE regulations allow a title to be revoked for "use of a FIDE title or rating to subvert the ethical principles of the title or rating system" or if a player is found to have violated the anti-cheating regulations in a tournament on which the title application was based. Exact regulations can be found in the FIDE Handbook. A report prepared by Bartłomiej Macieja for the Association of Chess Professionals mentions discussion at the FIDE congress of 2008 regarding a perceived decrease in value of the grandmaster title. The number of grandmasters had increased greatly between 1972 and 2008, but according to Macieja, the number of registered players rated over 2200 had increased even faster. Since that FIDE congress, discussion of the value of the grandmaster title has occasionally continued. From 1977 until 2003, FIDE awarded honorary Grandmaster titles to 31 players based on their past performances or other contributions to chess. Since 2007, no distinction has been made between an "honorary" grandmaster and a full grandmaster. The following players have been awarded honorary Grandmaster titles (with Marić and Honfi having been awarded the title posthumously in the year of their death): Bibliography
[ { "paragraph_id": 0, "text": "Grandmaster (GM) is a title awarded to chess players by the world chess organization FIDE. Apart from World Champion, Grandmaster is the highest title a chess player can attain. Once achieved, the title is held for life, though exceptionally the title can be revoked for cheating.", "title": "" }, { "paragraph_id": 1, "text": "The title of Grandmaster, along with the lesser FIDE titles of International Master (IM), FIDE Master (FM), and Candidate Master (CM), is open to all players regardless of gender. The great majority of grandmasters are men, but 40 women have been awarded the GM title as of 2022, out of a total of about 2000 grandmasters. There is also a Woman Grandmaster title with lower requirements awarded only to women.", "title": "" }, { "paragraph_id": 2, "text": "There are also Grandmaster titles for composers and solvers of chess problems, awarded by the World Federation for Chess Composition (see List of grandmasters for chess composition). The International Correspondence Chess Federation (ICCF) awards the title of International Correspondence Chess Grandmaster (ICCGM). Both of these bodies are now independent of FIDE, but work in co-operation with it.", "title": "" }, { "paragraph_id": 3, "text": "\"Super grandmaster\" is an informal term to refer to the world's elite players. In the past this would refer to players with an Elo rating of over 2600, but as the average Elo rating of the top players has increased it has typically come to refer to players with an Elo rating of over 2700. Super GMs, the number of whom has grown considerably over the years, have some name recognition in the world of sport and are typically the highest earners in chess.", "title": "" }, { "paragraph_id": 4, "text": "FIDE titles are only awarded at the quarterly FIDE Council meetings. Players who have qualified for the GM title but have not yet been awarded it are informally referred to as \"GM-elect\".", "title": "" }, { "paragraph_id": 5, "text": "Usage of grandmaster for an expert in some field is recorded from 1590. The first known use of the term grandmaster in connection with chess was in the 18 February 1838 issue of Bell's Life, in which a correspondent referred to William Lewis as \"our past grandmaster\". Subsequently, George Walker and others referred to Philidor as a grandmaster, and the term was also applied to a few other players.", "title": "History" }, { "paragraph_id": 6, "text": "The Ostend tournament of 1907 was divided into two sections: the Championship Tournament and the Masters' Tournament. The Championship section was for players who had previously won an international tournament. Siegbert Tarrasch won the Championship section, over Carl Schlechter, Dawid Janowski, Frank Marshall, Amos Burn, and Mikhail Chigorin. These players were described as grandmasters for the purposes of the tournament.", "title": "History" }, { "paragraph_id": 7, "text": "The San Sebastián 1912 tournament won by Akiba Rubinstein was a designated grandmaster event. Rubinstein won with 12½ points out of 19. Tied for second with 12 points were Aron Nimzowitsch and Rudolf Spielmann.", "title": "History" }, { "paragraph_id": 8, "text": "By some accounts, in the St. Petersburg 1914 chess tournament, the title Grandmaster was formally conferred by Russian Tsar Nicholas II, who had partially funded the tournament. The Tsar reportedly awarded the title to the five finalists: Emanuel Lasker, José Raúl Capablanca, Alexander Alekhine, Siegbert Tarrasch, and Frank Marshall. Chess historian Edward Winter has questioned this, stating that the earliest known sources that support this story are an article by Robert Lewis Taylor in the June 15, 1940, issue of The New Yorker and Marshall's autobiography My 50 Years of Chess (1942).", "title": "History" }, { "paragraph_id": 9, "text": "Before 1950, the term grandmaster was sometimes informally applied to world class players. The Fédération Internationale des Échecs (FIDE, or International Chess Federation) was formed in Paris in 1924, but at that time did not award formal titles.", "title": "History" }, { "paragraph_id": 10, "text": "In 1927, the Soviet Union's Chess Federation established the title of Grandmaster of the Soviet Union, in the form of the German loan word \"Großmeister\". At the time Soviet players were not competing outside their own country. This title was abolished in 1931, after having been awarded to Boris Verlinsky, who won the 1929 Soviet Championship. The title was brought back in 1935, and awarded to Mikhail Botvinnik, who thus became the first \"official\" Grandmaster of the USSR. Verlinsky did not get his title back.", "title": "History" }, { "paragraph_id": 11, "text": "In 1950 FIDE created the titles of Grandmaster (GM), International Master (IM) and Woman Master (WM, later known as Woman International Master or WIM). The grandmaster title is sometimes called \"International Grandmaster\" (IGM), possibly to distinguish it from similar national titles, but the shortened form is far more common today.", "title": "History" }, { "paragraph_id": 12, "text": "Titles were awarded by a resolution of the FIDE General Assembly and the Qualification Committee, with no formal written criteria. FIDE first awarded the Grandmaster title in 1950 to 27 players. These players were:", "title": "History" }, { "paragraph_id": 13, "text": "Since FIDE did not award the Grandmaster title posthumously, world-class players who died prior to 1950, including World Champions Steinitz, Lasker, Capablanca, and Alekhine, never received the title. A few strong still living players such as British India's Mir Sultan Khan, Germany's Paul Lipke and France's Eugene Znosko-Borovsky were never awarded titles.", "title": "History" }, { "paragraph_id": 14, "text": "Title awards under the original regulations were subject to political concerns. Efim Bogoljubow, who had emigrated from the Soviet Union to Germany, was not entered in the first class of Grandmasters, even though he had played two matches for the World Championship with Alekhine. He received the title in 1951, by a vote of thirteen to eight with five abstentions. Yugoslavia supported his application, but all other Communist countries opposed it. In 1953, FIDE abolished the old regulations, although a provision was maintained that allowed older masters who had been overlooked to be awarded titles. The new regulations awarded the title of International Grandmaster of the FIDE to players meeting any of the following criteria:", "title": "History" }, { "paragraph_id": 15, "text": "After FIDE issued the 1953 title regulations, it was recognized that they were somewhat haphazard, and work began to revise the regulations. The FIDE Congress in Vienna in 1957 adopted new regulations, called the FAV system, in recognition of the work done by International Judge Giovanni Ferrantes (Italy), Alexander (probably Conel Hugh O'Donel Alexander), and Giancarlo Dal Verme (Italy). Under the 1957 regulations, the title of International Grandmaster of the FIDE was automatically awarded to:", "title": "History" }, { "paragraph_id": 16, "text": "The regulations also allowed titles to be awarded by a FIDE Congress on recommendation by the Qualification Committee. Recommendations were based on performance in qualifying tournaments, with the required score depending on the percentage of Grandmasters and International Masters in the tournament.", "title": "History" }, { "paragraph_id": 17, "text": "Concerns were raised that the 1957 regulations were too lax. At the FIDE Congress in 1961, GM Milan Vidmar said that the regulations \"made it possible to award international titles to players without sufficient merit\". At the 1964 Congress in Tel Aviv, a subcommittee was formed to propose changes to the regulations. The subcommittee recommended that the automatic award of titles be abolished, criticized the methods used for awarding titles based on qualifying performances, and called for a change in the makeup of the Qualification Committee. Several delegates supported the subcommittee recommendations, including GM Miguel Najdorf who felt that existing regulations were leading to an inflation of international titles. At the 1965 Congress in Wiesbaden FIDE raised the standards required for international titles. The International Grandmaster title regulations were:", "title": "History" }, { "paragraph_id": 18, "text": "To fulfill requirement 2b, the candidate must score one GM norm in a category 1a tournament or two norms within a three-year period in two Category 1b tournaments, or one Category 2a tournament and one Category 1b tournament.", "title": "History" }, { "paragraph_id": 19, "text": "The categories of tournaments are:", "title": "History" }, { "paragraph_id": 20, "text": "Since FIDE titles are for life, a GM or IM does not count for the purposes of this requirement if he had not had a GM or IM result in the five years prior to the tournament.", "title": "History" }, { "paragraph_id": 21, "text": "In addition, no more than 50 percent plus one of the players can be from the same country for tournaments of 10 to 12 players, or no more than 50 percent plus two for larger tournaments.", "title": "History" }, { "paragraph_id": 22, "text": "Seventy-four GM titles were awarded in 1951 through 1968. During that period, ten GM titles were awarded in 1965, but only one in 1966 and in 1968.", "title": "History" }, { "paragraph_id": 23, "text": "The modern system for awarding FIDE titles evolved from the \"Dorazil\" proposals, presented to the 1970 Siegen Chess Olympiad FIDE Congress. The proposals were put together by Wilfried Dorazil (then FIDE Vice-President) and fellow Committee members Grandmaster Svetozar Gligorić and Professor Arpad Elo. The recommendations of the Committee report were adopted in full.", "title": "History" }, { "paragraph_id": 24, "text": "In essence, the proposals built on the work done by Professor Elo in devising his Elo rating system. The establishment of an updated list of players and their Elo rating enabled significantly strong international chess tournaments to be allocated a Category, based on the average rating of the contestants. For instance, it was decided that 'Category 1' status would apply to tournaments with an average Elo rating of participants falling within the range 2251–2275; similarly Category 2 would apply to the range 2276–2300 etc. The higher the tournament Category, the stronger the tournament.", "title": "History" }, { "paragraph_id": 25, "text": "Another vital component involved the setting of meritorious norms for each Category of tournament. Players must meet or surpass the relevant score to demonstrate that they had performed at Grandmaster (GM) or International Master (IM) level. Scores were expressed as percentages of a perfect maximum score and decreased as the tournament Category increased, thereby reflecting the strength of a player's opposition and the relative difficulty of the task.", "title": "History" }, { "paragraph_id": 26, "text": "Tournament organisers could then apply the percentages to their own tournament format and declare in advance the actual score that participants must achieve to attain a GM or IM result (nowadays referred to as a norm).", "title": "History" }, { "paragraph_id": 27, "text": "To qualify for the Grandmaster title, a player needed to achieve three such GM results within a rolling period of three years. Exceptionally, if a player's contributory games totalled 30 or more, then the title could be awarded on the basis of two such results. There were also circumstances where the system could be adapted to fit team events and other competitions.", "title": "History" }, { "paragraph_id": 28, "text": "The full proposals included many other rules and regulations, covering such topics as:", "title": "History" }, { "paragraph_id": 29, "text": "To become a grandmaster, a player must achieve both of the following:", "title": "Current regulations" }, { "paragraph_id": 30, "text": "The Grandmaster title is also automatically conferred, without needing to fulfill the above criteria, when winning the Women's World Championship, the World Junior Championship, or the World Senior Championship, or a Continental Chess Championship, given that the player's peak FIDE rating is at least 2300. Current regulations can be found in the FIDE Handbook.", "title": "Current regulations" }, { "paragraph_id": 31, "text": "FIDE titles including the grandmaster title are valid for life, but FIDE regulations allow a title to be revoked for \"use of a FIDE title or rating to subvert the ethical principles of the title or rating system\" or if a player is found to have violated the anti-cheating regulations in a tournament on which the title application was based.", "title": "Current regulations" }, { "paragraph_id": 32, "text": "Exact regulations can be found in the FIDE Handbook.", "title": "Current regulations" }, { "paragraph_id": 33, "text": "A report prepared by Bartłomiej Macieja for the Association of Chess Professionals mentions discussion at the FIDE congress of 2008 regarding a perceived decrease in value of the grandmaster title. The number of grandmasters had increased greatly between 1972 and 2008, but according to Macieja, the number of registered players rated over 2200 had increased even faster. Since that FIDE congress, discussion of the value of the grandmaster title has occasionally continued.", "title": "Title inflation" }, { "paragraph_id": 34, "text": "From 1977 until 2003, FIDE awarded honorary Grandmaster titles to 31 players based on their past performances or other contributions to chess. Since 2007, no distinction has been made between an \"honorary\" grandmaster and a full grandmaster. The following players have been awarded honorary Grandmaster titles (with Marić and Honfi having been awarded the title posthumously in the year of their death):", "title": "Honorary grandmasters" }, { "paragraph_id": 35, "text": "Bibliography", "title": "References" } ]
Grandmaster (GM) is a title awarded to chess players by the world chess organization FIDE. Apart from World Champion, Grandmaster is the highest title a chess player can attain. Once achieved, the title is held for life, though exceptionally the title can be revoked for cheating. The title of Grandmaster, along with the lesser FIDE titles of International Master (IM), FIDE Master (FM), and Candidate Master (CM), is open to all players regardless of gender. The great majority of grandmasters are men, but 40 women have been awarded the GM title as of 2022, out of a total of about 2000 grandmasters. There is also a Woman Grandmaster title with lower requirements awarded only to women. There are also Grandmaster titles for composers and solvers of chess problems, awarded by the World Federation for Chess Composition. The International Correspondence Chess Federation (ICCF) awards the title of International Correspondence Chess Grandmaster (ICCGM). Both of these bodies are now independent of FIDE, but work in co-operation with it. "Super grandmaster" is an informal term to refer to the world's elite players. In the past this would refer to players with an Elo rating of over 2600, but as the average Elo rating of the top players has increased it has typically come to refer to players with an Elo rating of over 2700. Super GMs, the number of whom has grown considerably over the years, have some name recognition in the world of sport and are typically the highest earners in chess. FIDE titles are only awarded at the quarterly FIDE Council meetings. Players who have qualified for the GM title but have not yet been awarded it are informally referred to as "GM-elect".
2001-06-16T20:27:37Z
2023-09-10T04:00:14Z
[ "Template:Short description", "Template:Reflist", "Template:Cite web", "Template:Citation", "Template:Harvard citation no brackets", "Template:Chess", "Template:Authority control" ]
https://en.wikipedia.org/wiki/Grandmaster_(chess)
12,305
Gotthold Ephraim Lessing
Gotthold Ephraim Lessing (/ˈlɛsɪŋ/, German: [ˈɡɔthɔlt ˈʔeːfʁa.ɪm ˈlɛsɪŋ] ; 22 January 1729 – 15 February 1781) was a German philosopher, dramatist, publicist and art critic, and a representative of the Enlightenment era. His plays and theoretical writings substantially influenced the development of German literature. He is widely considered by theatre historians to be the first dramaturg in his role at Abel Seyler's Hamburg National Theatre. Lessing was born in Kamenz, a small town in Saxony, to Johann Gottfried Lessing (1693―1770) and Justine Salome Feller (1703―1777). His father was a Lutheran minister and wrote on theology. Young Lessing studied at the Latin School in Kamenz from 1737 to 1741. With a father who wanted his son to follow in his footsteps, Lessing next attended the Fürstenschule St. Afra in Meissen. After completing his education at St. Afra's, he enrolled at Leipzig University where he pursued a degree in theology, medicine, philosophy, and philology (1746–1748). It was here that his relationship with Karoline Neuber, a famous German actress, began. He translated several French plays for her, and his interest in theatre grew. During this time, he wrote his first play, The Young Scholar. Neuber eventually produced the play in 1748. From 1748 to 1760, Lessing lived in Leipzig and Berlin. He began to work as a reviewer and editor for the Vossische Zeitung and other periodicals. Lessing formed a close connection with his cousin, Christlob Mylius, and decided to follow him to Berlin. In 1750, Lessing and Mylius teamed together to begin a periodical publication named Beiträge zur Historie und Aufnahme des Theaters. The publication ran only four issues, but it caught the public's eye and revealed Lessing to be a serious critic and theorist of drama. In 1752, he took his master's degree in Wittenberg. From 1760 to 1765, he worked in Breslau (now Wrocław) as secretary to General Tauentzien during the Seven Years' War between Britain and France, which had effects in Europe. It was during this time that he wrote his famous Laocoön, or the Limitations of Poetry [de]. In 1765, Lessing returned to Berlin, leaving in 1767 to work for three years at the Hamburg National Theatre. Actor-manager Konrad Ackermann began construction of Germany's first permanent national theatre in Hamburg, established by Johann Friedrich Löwen [de]. The owners of the new Hamburg National Theatre hired Lessing as the theatre's critic of plays and acting, an activity later known as dramaturgy (based on his own words), making Lessing the very first dramaturge. The theatre's main backer was Abel Seyler, a former currency speculator who since became known as "the leading patron of German theatre." There he met Eva König, his future wife. His work in Hamburg formed the basis of his pioneering work on drama, titled Hamburgische Dramaturgie. Unfortunately, because of financial losses due to pirated editions of the Hamburgische Dramaturgie, the Hamburg Theatre closed just three years later. In 1770, Lessing became librarian at the ducal library, now the Herzog August Library (Herzog-August-Bibliothek, Bibliotheca Augusta), in Wolfenbüttel under the commission of the Duke of Brunswick. His tenure there was energetic, if interrupted by many journeys. In 1775, for example, he accompanied Prince Leopold to Italy. Follower of Spinoza's philosophy, on 14 October 1771, Lessing was initiated into Freemasonry in the lodge "Zu den drei Goldenen Rosen" in Hamburg. In 1773, he discovered Archimedes' cattle problem in a Greek manuscript containing a poem of 44 lines, in the Herzog August Library in Wolfenbüttel. This problem would remain unsolved until 1880. In 1776, he married Eva König, who was then a widow, in Jork (near Hamburg). She died in 1778 after giving birth to a short-lived son. On 15 February 1781, Lessing, aged 52, died during a visit to the wine dealer Angott in Brunswick. Lessing was also famous for his friendship with Jewish-German philosopher Moses Mendelssohn. A recent biography of Mendelssohn's grandson, Felix, describes their friendship as one of the most "illuminating metaphors [for] the clarion call of the Enlightenment for religious tolerance". It was this relationship that sparked his interest in popular religious debates of the time. He began publishing heated pamphlets on his beliefs which were eventually banned. It was this banishment that inspired him to return to theatre to portray his views and to write Nathan the Wise. Early in his life, Lessing showed interest in the theatre. In his theoretical and critical writings on the subject—as in his own plays—he tried to contribute to the development of a new type of theatre in Germany. With this he especially turned against the then predominant literary theory of Gottsched and his followers. Lessing's Hamburgische Dramaturgie ran critiques of plays that were performed in the Hamburg Theatre, but after dealing with dissatisfied actors and actresses, Lessing redirected his writings to more of an analysis on the proper uses of drama. Lessing advocated the outline of drama in Aristotle's Poetics. He believed the French Academy had devalued the uses of drama through their neoclassical rules of form and separation of genres. His repeated opinions on this issue influenced theatre practitioners who began the movement of rejecting theatre rules known as Sturm und Drang ("Storm and Stress"). He also supported serious reception of Shakespeare's works. He worked with many theatre groups (e.g. the one of the Neuberin). In Hamburg he tried with others to set up the German National Theatre. Today his own works appear as prototypes of the later developed bourgeois German drama. Scholars see Miss Sara Sampson and Emilia Galotti as amongst the first bourgeois tragedies, Minna von Barnhelm (Minna of Barnhelm) as the model for many classic German comedies, Nathan the Wise (Nathan der Weise) as the first German drama of ideas ("Ideendrama"). His theoretical writings Laocoön and Hamburg Dramaturgy (Hamburgische Dramaturgie) set the standards for the discussion of aesthetic and literary theoretical principles. Lessing advocated that dramaturgs should carry their work out working directly with theatre companies rather than in isolation. In his religious and philosophical writings he defended the faithful Christian's right for freedom of thought. He argued against the belief in revelation and the holding on to a literal interpretation of the Bible by the predominant orthodox doctrine through a problem later to be called Lessing's Ditch. Lessing outlined the concept of the religious "Proof of Power": How can miracles continue to be used as a base for Christianity when we have no proof of miracles? Historical truths which are in doubt cannot be used to prove metaphysical truths (such as God's existence). As Lessing says it: "That, then, is the ugly great ditch which I cannot cross, however often and however earnestly I have tried to make that leap." In the final leg of his life, Lessing threw himself into an intense evaluation of theology and religion. He did much of his studying by reading manuscripts he found while working as a librarian. While working for the Duke, he formed a close friendship with a family by the name of Reimarus. The family held an unpublished manuscript by Hermann Samuel Reimarus which attacked the historicity of Christian revelation. Despite discouragement from his brother Karl Gotthelf Lessing, he began publishing pieces of the manuscript in pamphlets known as Fragments from an Unnamed Author. The controversial pamphlets resulted in a heated debate between him and another theologian, Johann Melchior Goeze. In concern for tarnishing his reputation, Goeze requested the government put an end to the feud, and Lessing was silenced through a law that took away his freedom from censorship. In response, Lessing relied upon his skills as a playwright to write what is undoubtedly his most influential play, Nathan the Wise. In the play, Lessing set up tension between Judaism, Islam, and Christianity by having one character ask Nathan which religion was the most genuine. Nathan avoids the question by telling the parable of the three rings, which implies the idea that no specific religion is the "correct religion." The Enlightenment ideas to which Lessing held tight were portrayed through his "ideal of humanity," stating that religion is relative to the individual's ability to reason. Nathan the Wise is considered to be the first example of the German "literature of humanity". As a child of the Enlightenment he trusted in a "Christianity of Reason", which oriented itself by the spirit of religion. He believed that human reason (initiated by criticism and dissent) would develop, even without help by a divine revelation. In his writing The Education of Humankind (Die Erziehung des Menschengeschlechts) he extensively and coherently lays out his position. The idea of freedom (for the theatre against the dominance of its French model; for religion from the church's dogma) is his central theme throughout his life. Therefore, he also stood up for the liberation of the upcoming middle and upper class from the nobility making up their minds for them. In his own literary existence he also constantly strove for independence. But his ideal of a possible life as a free author was hard to keep up against the economic constraints he faced. His project of authors self-publishing their works, which he tried to accomplish in Hamburg with C. J. Bode, failed. Lessing is important as a literary critic for his work Laocoon: An Essay on the Limits of Painting and Poetry. In this work, he argues against the tendency to take Horace's ut pictura poesis (as painting, so poetry) as prescriptive for literature. In other words, he objected to trying to write poetry using the same devices as one would in painting. Instead, poetry and painting each has its character (the former is extended in time; the latter is extended in space). This is related to Lessing's turn from French classicism to Aristotelian mimesis, discussed above. The Radical Pietist Johann Daniel Müller [de] (born 1716 in Wissenbach/Nassau, today part of Eschenburg, deceased after 1785) published the following anonymous book against Lessing and Reimarus:
[ { "paragraph_id": 0, "text": "Gotthold Ephraim Lessing (/ˈlɛsɪŋ/, German: [ˈɡɔthɔlt ˈʔeːfʁa.ɪm ˈlɛsɪŋ] ; 22 January 1729 – 15 February 1781) was a German philosopher, dramatist, publicist and art critic, and a representative of the Enlightenment era. His plays and theoretical writings substantially influenced the development of German literature. He is widely considered by theatre historians to be the first dramaturg in his role at Abel Seyler's Hamburg National Theatre.", "title": "" }, { "paragraph_id": 1, "text": "Lessing was born in Kamenz, a small town in Saxony, to Johann Gottfried Lessing (1693―1770) and Justine Salome Feller (1703―1777). His father was a Lutheran minister and wrote on theology. Young Lessing studied at the Latin School in Kamenz from 1737 to 1741. With a father who wanted his son to follow in his footsteps, Lessing next attended the Fürstenschule St. Afra in Meissen. After completing his education at St. Afra's, he enrolled at Leipzig University where he pursued a degree in theology, medicine, philosophy, and philology (1746–1748).", "title": "Life" }, { "paragraph_id": 2, "text": "It was here that his relationship with Karoline Neuber, a famous German actress, began. He translated several French plays for her, and his interest in theatre grew. During this time, he wrote his first play, The Young Scholar. Neuber eventually produced the play in 1748.", "title": "Life" }, { "paragraph_id": 3, "text": "From 1748 to 1760, Lessing lived in Leipzig and Berlin. He began to work as a reviewer and editor for the Vossische Zeitung and other periodicals. Lessing formed a close connection with his cousin, Christlob Mylius, and decided to follow him to Berlin. In 1750, Lessing and Mylius teamed together to begin a periodical publication named Beiträge zur Historie und Aufnahme des Theaters. The publication ran only four issues, but it caught the public's eye and revealed Lessing to be a serious critic and theorist of drama.", "title": "Life" }, { "paragraph_id": 4, "text": "In 1752, he took his master's degree in Wittenberg. From 1760 to 1765, he worked in Breslau (now Wrocław) as secretary to General Tauentzien during the Seven Years' War between Britain and France, which had effects in Europe. It was during this time that he wrote his famous Laocoön, or the Limitations of Poetry [de].", "title": "Life" }, { "paragraph_id": 5, "text": "In 1765, Lessing returned to Berlin, leaving in 1767 to work for three years at the Hamburg National Theatre. Actor-manager Konrad Ackermann began construction of Germany's first permanent national theatre in Hamburg, established by Johann Friedrich Löwen [de]. The owners of the new Hamburg National Theatre hired Lessing as the theatre's critic of plays and acting, an activity later known as dramaturgy (based on his own words), making Lessing the very first dramaturge. The theatre's main backer was Abel Seyler, a former currency speculator who since became known as \"the leading patron of German theatre.\" There he met Eva König, his future wife. His work in Hamburg formed the basis of his pioneering work on drama, titled Hamburgische Dramaturgie. Unfortunately, because of financial losses due to pirated editions of the Hamburgische Dramaturgie, the Hamburg Theatre closed just three years later.", "title": "Life" }, { "paragraph_id": 6, "text": "In 1770, Lessing became librarian at the ducal library, now the Herzog August Library (Herzog-August-Bibliothek, Bibliotheca Augusta), in Wolfenbüttel under the commission of the Duke of Brunswick. His tenure there was energetic, if interrupted by many journeys. In 1775, for example, he accompanied Prince Leopold to Italy. Follower of Spinoza's philosophy, on 14 October 1771, Lessing was initiated into Freemasonry in the lodge \"Zu den drei Goldenen Rosen\" in Hamburg.", "title": "Life" }, { "paragraph_id": 7, "text": "In 1773, he discovered Archimedes' cattle problem in a Greek manuscript containing a poem of 44 lines, in the Herzog August Library in Wolfenbüttel. This problem would remain unsolved until 1880. In 1776, he married Eva König, who was then a widow, in Jork (near Hamburg). She died in 1778 after giving birth to a short-lived son. On 15 February 1781, Lessing, aged 52, died during a visit to the wine dealer Angott in Brunswick.", "title": "Life" }, { "paragraph_id": 8, "text": "Lessing was also famous for his friendship with Jewish-German philosopher Moses Mendelssohn. A recent biography of Mendelssohn's grandson, Felix, describes their friendship as one of the most \"illuminating metaphors [for] the clarion call of the Enlightenment for religious tolerance\". It was this relationship that sparked his interest in popular religious debates of the time. He began publishing heated pamphlets on his beliefs which were eventually banned. It was this banishment that inspired him to return to theatre to portray his views and to write Nathan the Wise.", "title": "Life" }, { "paragraph_id": 9, "text": "Early in his life, Lessing showed interest in the theatre. In his theoretical and critical writings on the subject—as in his own plays—he tried to contribute to the development of a new type of theatre in Germany. With this he especially turned against the then predominant literary theory of Gottsched and his followers. Lessing's Hamburgische Dramaturgie ran critiques of plays that were performed in the Hamburg Theatre, but after dealing with dissatisfied actors and actresses, Lessing redirected his writings to more of an analysis on the proper uses of drama. Lessing advocated the outline of drama in Aristotle's Poetics. He believed the French Academy had devalued the uses of drama through their neoclassical rules of form and separation of genres. His repeated opinions on this issue influenced theatre practitioners who began the movement of rejecting theatre rules known as Sturm und Drang (\"Storm and Stress\"). He also supported serious reception of Shakespeare's works. He worked with many theatre groups (e.g. the one of the Neuberin).", "title": "Works" }, { "paragraph_id": 10, "text": "In Hamburg he tried with others to set up the German National Theatre. Today his own works appear as prototypes of the later developed bourgeois German drama. Scholars see Miss Sara Sampson and Emilia Galotti as amongst the first bourgeois tragedies, Minna von Barnhelm (Minna of Barnhelm) as the model for many classic German comedies, Nathan the Wise (Nathan der Weise) as the first German drama of ideas (\"Ideendrama\"). His theoretical writings Laocoön and Hamburg Dramaturgy (Hamburgische Dramaturgie) set the standards for the discussion of aesthetic and literary theoretical principles. Lessing advocated that dramaturgs should carry their work out working directly with theatre companies rather than in isolation.", "title": "Works" }, { "paragraph_id": 11, "text": "In his religious and philosophical writings he defended the faithful Christian's right for freedom of thought. He argued against the belief in revelation and the holding on to a literal interpretation of the Bible by the predominant orthodox doctrine through a problem later to be called Lessing's Ditch. Lessing outlined the concept of the religious \"Proof of Power\": How can miracles continue to be used as a base for Christianity when we have no proof of miracles? Historical truths which are in doubt cannot be used to prove metaphysical truths (such as God's existence). As Lessing says it: \"That, then, is the ugly great ditch which I cannot cross, however often and however earnestly I have tried to make that leap.\"", "title": "Works" }, { "paragraph_id": 12, "text": "In the final leg of his life, Lessing threw himself into an intense evaluation of theology and religion. He did much of his studying by reading manuscripts he found while working as a librarian. While working for the Duke, he formed a close friendship with a family by the name of Reimarus. The family held an unpublished manuscript by Hermann Samuel Reimarus which attacked the historicity of Christian revelation. Despite discouragement from his brother Karl Gotthelf Lessing, he began publishing pieces of the manuscript in pamphlets known as Fragments from an Unnamed Author. The controversial pamphlets resulted in a heated debate between him and another theologian, Johann Melchior Goeze. In concern for tarnishing his reputation, Goeze requested the government put an end to the feud, and Lessing was silenced through a law that took away his freedom from censorship.", "title": "Works" }, { "paragraph_id": 13, "text": "In response, Lessing relied upon his skills as a playwright to write what is undoubtedly his most influential play, Nathan the Wise. In the play, Lessing set up tension between Judaism, Islam, and Christianity by having one character ask Nathan which religion was the most genuine. Nathan avoids the question by telling the parable of the three rings, which implies the idea that no specific religion is the \"correct religion.\" The Enlightenment ideas to which Lessing held tight were portrayed through his \"ideal of humanity,\" stating that religion is relative to the individual's ability to reason. Nathan the Wise is considered to be the first example of the German \"literature of humanity\". As a child of the Enlightenment he trusted in a \"Christianity of Reason\", which oriented itself by the spirit of religion. He believed that human reason (initiated by criticism and dissent) would develop, even without help by a divine revelation. In his writing The Education of Humankind (Die Erziehung des Menschengeschlechts) he extensively and coherently lays out his position.", "title": "Works" }, { "paragraph_id": 14, "text": "The idea of freedom (for the theatre against the dominance of its French model; for religion from the church's dogma) is his central theme throughout his life. Therefore, he also stood up for the liberation of the upcoming middle and upper class from the nobility making up their minds for them.", "title": "Works" }, { "paragraph_id": 15, "text": "In his own literary existence he also constantly strove for independence. But his ideal of a possible life as a free author was hard to keep up against the economic constraints he faced. His project of authors self-publishing their works, which he tried to accomplish in Hamburg with C. J. Bode, failed.", "title": "Works" }, { "paragraph_id": 16, "text": "Lessing is important as a literary critic for his work Laocoon: An Essay on the Limits of Painting and Poetry. In this work, he argues against the tendency to take Horace's ut pictura poesis (as painting, so poetry) as prescriptive for literature. In other words, he objected to trying to write poetry using the same devices as one would in painting. Instead, poetry and painting each has its character (the former is extended in time; the latter is extended in space). This is related to Lessing's turn from French classicism to Aristotelian mimesis, discussed above.", "title": "Works" }, { "paragraph_id": 17, "text": "The Radical Pietist Johann Daniel Müller [de] (born 1716 in Wissenbach/Nassau, today part of Eschenburg, deceased after 1785) published the following anonymous book against Lessing and Reimarus:", "title": "Attack by Johann Daniel Müller" } ]
Gotthold Ephraim Lessing was a German philosopher, dramatist, publicist and art critic, and a representative of the Enlightenment era. His plays and theoretical writings substantially influenced the development of German literature. He is widely considered by theatre historians to be the first dramaturg in his role at Abel Seyler's Hamburg National Theatre.
2002-02-25T15:51:15Z
2023-11-25T22:07:35Z
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https://en.wikipedia.org/wiki/Gotthold_Ephraim_Lessing
12,306
Geotechnical engineering
Geotechnical engineering, also known as geotechnics, is the branch of civil engineering concerned with the engineering behavior of earth materials. It uses the principles of soil mechanics and rock mechanics to solve its engineering problems. It also relies on knowledge of geology, hydrology, geophysics, and other related sciences. Geotechnical engineering has applications in military engineering, mining engineering, petroleum engineering, coastal engineering, and offshore construction. The fields of geotechnical engineering and engineering geology have overlapping knowledge areas. However, while geotechnical engineering is a specialty of civil engineering, engineering geology is a specialty of geology. Humans have historically used soil as a material for flood control, irrigation purposes, burial sites, building foundations, and construction materials for buildings. Dykes, dams, and canals dating back to at least 2000 BCE—found in parts of ancient Egypt, ancient Mesopotamia, the Fertile Crescent, and the early settlements of Mohenjo Daro and Harappa in the Indus valley—provide evidence for early activities linked to irrigation and flood control. As cities expanded, structures were erected and supported by formalized foundations. The ancient Greeks notably constructed pad footings and strip-and-raft foundations. Until the 18th century, however, no theoretical basis for soil design had been developed, and the discipline was more of an art than a science, relying on experience. Several foundation-related engineering problems, such as the Leaning Tower of Pisa, prompted scientists to begin taking a more scientific-based approach to examining the subsurface. The earliest advances occurred in the development of earth pressure theories for the construction of retaining walls. Henri Gautier, a French royal engineer, recognized the "natural slope" of different soils in 1717, an idea later known as the soil's angle of repose. Around the same time, a rudimentary soil classification system was also developed based on a material's unit weight, which is no longer considered a good indication of soil type. The application of the principles of mechanics to soils was documented as early as 1773 when Charles Coulomb, a physicist and engineer, developed improved methods to determine the earth pressures against military ramparts. Coulomb observed that, at failure, a distinct slip plane would form behind a sliding retaining wall and suggested that the maximum shear stress on the slip plane, for design purposes, was the sum of the soil cohesion, c {\displaystyle c} , and friction σ {\displaystyle \sigma \,\!} tan ( ϕ ) {\displaystyle \tan(\phi \,\!)} , where σ {\displaystyle \sigma \,\!} is the normal stress on the slip plane and ϕ {\displaystyle \phi \,\!} is the friction angle of the soil. By combining Coulomb's theory with Christian Otto Mohr's 2D stress state, the theory became known as Mohr-Coulomb theory. Although it is now recognized that precise determination of cohesion is impossible because c {\displaystyle c} is not a fundamental soil property, the Mohr-Coulomb theory is still used in practice today. In the 19th century, Henry Darcy developed what is now known as Darcy's Law, describing the flow of fluids in a porous media. Joseph Boussinesq, a mathematician and physicist, developed theories of stress distribution in elastic solids that proved useful for estimating stresses at depth in the ground. William Rankine, an engineer and physicist, developed an alternative to Coulomb's earth pressure theory. Albert Atterberg developed the clay consistency indices that are still used today for soil classification. In 1885, Osborne Reynolds recognized that shearing causes volumetric dilation of dense materials and contraction of loose granular materials. Modern geotechnical engineering is said to have begun in 1925 with the publication of Erdbaumechanik by Karl von Terzaghi, a mechanical engineer and geologist. Considered by many to be the father of modern soil mechanics and geotechnical engineering, Terzaghi developed the principle of effective stress, and demonstrated that the shear strength of soil is controlled by effective stress. Terzaghi also developed the framework for theories of bearing capacity of foundations, and the theory for prediction of the rate of settlement of clay layers due to consolidation. Afterwards, Maurice Biot fully developed the three-dimensional soil consolidation theory, extending the one-dimensional model previously developed by Terzaghi to more general hypotheses and introducing the set of basic equations of Poroelasticity. In his 1948 book, Donald Taylor recognized that the interlocking and dilation of densely packed particles contributed to the peak strength of the soil. Roscoe, Schofield, and Wroth, with the publication of On the Yielding of Soils in 1958, established the interrelationships between the volume change behavior (dilation, contraction, and consolidation) and shearing behavior with the theory of plasticity using critical state soil mechanics. Critical state soil mechanics is the basis for many contemporary advanced constitutive models describing the behavior of soil. In 1960, Alec Skempton carried out an extensive review of the available formulations and experimental data in the literature about the effective stress validity in soil, concrete, and rock in order to reject some of these expressions, as well as clarify what expressions were appropriate according to several working hypotheses, such as stress-strain or strength behavior, saturated or non-saturated media, and rock, concrete or soil behavior. Geotechnical engineers investigate and determinate the properties of subsurface conditions and materials. They also design corresponding earthworks and retaining structures, tunnels, and structure foundations, and may supervise and evaluate sites, which may further involve site monitoring as well as the risk assessment and mitigation of natural hazards. Geotechnical engineers and engineering geologists perform geotechnical investigations to obtain information on the physical properties of soil and rock underlying, and adjacent to, a site to design earthworks and foundations for proposed structures and for the repair of distress to earthworks and structures caused by subsurface conditions. Geotechnical investigations involve both surface and subsurface exploration of a site, often including subsurface sampling and laboratory testing of soil samples retrieved. Sometimes, geophysical methods are also used to obtain data, which include measurement of seismic waves (pressure, shear, and Rayleigh waves), surface-wave methods and downhole methods, and electromagnetic surveys (magnetometer, resistivity, and ground-penetrating radar). Electrical tomography can be used to survey soil and rock properties and existing underground infrastructure in construction projects. Surface exploration can include on-foot surveys, geologic mapping, geophysical methods, and photogrammetry. Geologic mapping and interpretation of geomorphology are typically completed in consultation with a geologist or engineering geologist. Subsurface exploration usually involves in-situ testing (for example, the standard penetration test and cone penetration test). The digging of test pits and trenching (particularly for locating faults and slide planes) may also be used to learn about soil conditions at depth. Large-diameter borings are rarely used due to safety concerns and expense but are sometimes used to allow a geologist or engineer to be lowered into the borehole for direct visual and manual examination of the soil and rock stratigraphy. A variety of soil samplers exists to meet the needs of different engineering projects. The standard penetration test, which uses a thick-walled split spoon sampler, is the most common way to collect disturbed samples. Piston samplers, employing a thin-walled tube, are most commonly used for the collection of less disturbed samples. More advanced methods, such as the Sherbrooke block sampler, are superior, but expensive. Coring frozen ground provides high-quality undisturbed samples from any ground conditions, such as fill, sand, moraine, and rock fracture zones. Geotechnical centrifuge modeling is another method of testing physical scale models of geotechnical problems. The use of a centrifuge enhances the similarity of the scale model tests involving soil because the strength and stiffness of soil are very sensitive to the confining pressure. The centrifugal acceleration allows a researcher to obtain large (prototype-scale) stresses in small physical models. The foundation of a structure's infrastructure transmits loads from the structure to the earth. Geotechnical engineers design foundations based on the load characteristics of the structure and the properties of the soils and bedrock at the site. In general, geotechnical engineers first estimate the magnitude and location of loads to be supported, before developing an investigation plan to explore the subsurface and also determining the necessary soil parameters through field and lab testing. Following which, they may begin the design of an engineering foundation. The primary considerations for a geotechnical engineer in foundation design are bearing capacity, settlement, and ground movement beneath the foundations. Geotechnical engineers are also involved in the planning and execution of earthworks, which include ground improvement, slope stabilization, and stope stability analysis. Various geotechnical engineering methods can be used for ground improvement, including reinforcement geosynthetics such as geocells and geogrids, which disperse loads over a larger area, increasing the load-bearing capacity of soil. Through these methods, geotechnical engineers can reduce direct and long-term costs. Geotechnical engineers can analyze and improve the stability of slopes using engineering methods. Slope stability is determined by the balance of shear stress and shear strength. A previously stable slope may be initially affected by various factors, making the slope unstable. Nonetheless, geotechnical engineers can design and implement engineered slopes to increase stability. Stability analysis is needed for the design of engineered slopes and for estimating the risk of slope failure in natural or designed slopes by determining the conditions under which the topmost mass of soil will slip relative to the base of soil and lead to slope failure. If the interface between the mass and the base of a slope has a complex geometry, slope stability analysis is difficult and numerical solution methods are required. Typically, the exact geometry of the interface is not known and a simplified interface geometry is assumed. Finite slopes require three-dimensional models to be analyzed, so most slopes are analyzed assuming that they are infinitely wide and can be represented by two-dimensional models. Geosynthetics are a type of plastic polymer products used in geotechnical engineering that improve engineering performance while reducing costs. This includes geotextiles, geogrids, geomembranes, geocells, and geocomposites. The synthetic nature of the products make them suitable for use in the ground where high levels of durability are required. Their main functions include drainage, filtration, reinforcement, separation, and containment. Geosynthetics are available in a wide range of forms and materials, each to suit a slightly different end-use, although they are frequently used together. Some reinforcement geosynthetics, such as geogrids and more recently, cellular confinement systems, have shown to improve bearing capacity, modulus factors and soil stiffness and strength. These products have a wide range of applications and are currently used in many civil and geotechnical engineering applications including roads, airfields, railroads, embankments, piled embankments, retaining structures, reservoirs, canals, dams, landfills, bank protection and coastal engineering. Offshore (or marine) geotechnical engineering is concerned with foundation design for human-made structures in the sea, away from the coastline (in opposition to onshore or nearshore engineering). Oil platforms, artificial islands and submarine pipelines are examples of such structures. There are a number of significant differences between onshore and offshore geotechnical engineering. Notably, site investigation and ground improvement on the seabed are more expensive; the offshore structures are exposed to a wider range of geohazards; and the environmental and financial consequences are higher in case of failure. Offshore structures are exposed to various environmental loads, notably wind, waves and currents. These phenomena may affect the integrity or the serviceability of the structure and its foundation during its operational lifespan and need to be taken into account in offshore design. In subsea geotechnical engineering, seabed materials are considered a two-phase material composed of rock or mineral particles and water. Structures may be fixed in place in the seabed—as is the case for piers, jettys and fixed-bottom wind turbines—or may comprise a floating structure that remains roughly fixed relative to its geotechnical anchor point. Undersea mooring of human-engineered floating structures include a large number of offshore oil and gas platforms and, since 2008, a few floating wind turbines. Two common types of engineered design for anchoring floating structures include tension-leg and catenary loose mooring systems. First proposed by Karl Terzaghi and later discussed in a paper by Ralph B. Peck, the observational method is a managed process of construction control, monitoring, and review, which enables modifications to be incorporated during and after construction. The objective of the method is to achieve a greater overall economy, without compromising safety, by creating designs based on the most probable conditions rather than the most unfavorable. Using the observational method, gaps in available information are filled by measurements and investigation, which aid in assessing the behavior of the structure during construction, which in turn can be modified in accordance with the findings. The method was described by Peck as "learn-as-you-go". The observational method may be described as follows: The observational method is suitable for construction that has already begun when an unexpected development occurs, or when a failure or accident looms or has already occurred. It is unsuitable for projects whose design cannot be altered during construction. Engineering portal
[ { "paragraph_id": 0, "text": "Geotechnical engineering, also known as geotechnics, is the branch of civil engineering concerned with the engineering behavior of earth materials. It uses the principles of soil mechanics and rock mechanics to solve its engineering problems. It also relies on knowledge of geology, hydrology, geophysics, and other related sciences.", "title": "" }, { "paragraph_id": 1, "text": "Geotechnical engineering has applications in military engineering, mining engineering, petroleum engineering, coastal engineering, and offshore construction. The fields of geotechnical engineering and engineering geology have overlapping knowledge areas. However, while geotechnical engineering is a specialty of civil engineering, engineering geology is a specialty of geology.", "title": "" }, { "paragraph_id": 2, "text": "Humans have historically used soil as a material for flood control, irrigation purposes, burial sites, building foundations, and construction materials for buildings. Dykes, dams, and canals dating back to at least 2000 BCE—found in parts of ancient Egypt, ancient Mesopotamia, the Fertile Crescent, and the early settlements of Mohenjo Daro and Harappa in the Indus valley—provide evidence for early activities linked to irrigation and flood control. As cities expanded, structures were erected and supported by formalized foundations. The ancient Greeks notably constructed pad footings and strip-and-raft foundations. Until the 18th century, however, no theoretical basis for soil design had been developed, and the discipline was more of an art than a science, relying on experience.", "title": "History" }, { "paragraph_id": 3, "text": "Several foundation-related engineering problems, such as the Leaning Tower of Pisa, prompted scientists to begin taking a more scientific-based approach to examining the subsurface. The earliest advances occurred in the development of earth pressure theories for the construction of retaining walls. Henri Gautier, a French royal engineer, recognized the \"natural slope\" of different soils in 1717, an idea later known as the soil's angle of repose. Around the same time, a rudimentary soil classification system was also developed based on a material's unit weight, which is no longer considered a good indication of soil type.", "title": "History" }, { "paragraph_id": 4, "text": "The application of the principles of mechanics to soils was documented as early as 1773 when Charles Coulomb, a physicist and engineer, developed improved methods to determine the earth pressures against military ramparts. Coulomb observed that, at failure, a distinct slip plane would form behind a sliding retaining wall and suggested that the maximum shear stress on the slip plane, for design purposes, was the sum of the soil cohesion, c {\\displaystyle c} , and friction σ {\\displaystyle \\sigma \\,\\!} tan ( ϕ ) {\\displaystyle \\tan(\\phi \\,\\!)} , where σ {\\displaystyle \\sigma \\,\\!} is the normal stress on the slip plane and ϕ {\\displaystyle \\phi \\,\\!} is the friction angle of the soil. By combining Coulomb's theory with Christian Otto Mohr's 2D stress state, the theory became known as Mohr-Coulomb theory. Although it is now recognized that precise determination of cohesion is impossible because c {\\displaystyle c} is not a fundamental soil property, the Mohr-Coulomb theory is still used in practice today.", "title": "History" }, { "paragraph_id": 5, "text": "In the 19th century, Henry Darcy developed what is now known as Darcy's Law, describing the flow of fluids in a porous media. Joseph Boussinesq, a mathematician and physicist, developed theories of stress distribution in elastic solids that proved useful for estimating stresses at depth in the ground. William Rankine, an engineer and physicist, developed an alternative to Coulomb's earth pressure theory. Albert Atterberg developed the clay consistency indices that are still used today for soil classification. In 1885, Osborne Reynolds recognized that shearing causes volumetric dilation of dense materials and contraction of loose granular materials.", "title": "History" }, { "paragraph_id": 6, "text": "Modern geotechnical engineering is said to have begun in 1925 with the publication of Erdbaumechanik by Karl von Terzaghi, a mechanical engineer and geologist. Considered by many to be the father of modern soil mechanics and geotechnical engineering, Terzaghi developed the principle of effective stress, and demonstrated that the shear strength of soil is controlled by effective stress. Terzaghi also developed the framework for theories of bearing capacity of foundations, and the theory for prediction of the rate of settlement of clay layers due to consolidation. Afterwards, Maurice Biot fully developed the three-dimensional soil consolidation theory, extending the one-dimensional model previously developed by Terzaghi to more general hypotheses and introducing the set of basic equations of Poroelasticity.", "title": "History" }, { "paragraph_id": 7, "text": "In his 1948 book, Donald Taylor recognized that the interlocking and dilation of densely packed particles contributed to the peak strength of the soil. Roscoe, Schofield, and Wroth, with the publication of On the Yielding of Soils in 1958, established the interrelationships between the volume change behavior (dilation, contraction, and consolidation) and shearing behavior with the theory of plasticity using critical state soil mechanics. Critical state soil mechanics is the basis for many contemporary advanced constitutive models describing the behavior of soil.", "title": "History" }, { "paragraph_id": 8, "text": "In 1960, Alec Skempton carried out an extensive review of the available formulations and experimental data in the literature about the effective stress validity in soil, concrete, and rock in order to reject some of these expressions, as well as clarify what expressions were appropriate according to several working hypotheses, such as stress-strain or strength behavior, saturated or non-saturated media, and rock, concrete or soil behavior.", "title": "History" }, { "paragraph_id": 9, "text": "Geotechnical engineers investigate and determinate the properties of subsurface conditions and materials. They also design corresponding earthworks and retaining structures, tunnels, and structure foundations, and may supervise and evaluate sites, which may further involve site monitoring as well as the risk assessment and mitigation of natural hazards.", "title": "Roles" }, { "paragraph_id": 10, "text": "Geotechnical engineers and engineering geologists perform geotechnical investigations to obtain information on the physical properties of soil and rock underlying, and adjacent to, a site to design earthworks and foundations for proposed structures and for the repair of distress to earthworks and structures caused by subsurface conditions. Geotechnical investigations involve both surface and subsurface exploration of a site, often including subsurface sampling and laboratory testing of soil samples retrieved. Sometimes, geophysical methods are also used to obtain data, which include measurement of seismic waves (pressure, shear, and Rayleigh waves), surface-wave methods and downhole methods, and electromagnetic surveys (magnetometer, resistivity, and ground-penetrating radar). Electrical tomography can be used to survey soil and rock properties and existing underground infrastructure in construction projects.", "title": "Roles" }, { "paragraph_id": 11, "text": "Surface exploration can include on-foot surveys, geologic mapping, geophysical methods, and photogrammetry. Geologic mapping and interpretation of geomorphology are typically completed in consultation with a geologist or engineering geologist. Subsurface exploration usually involves in-situ testing (for example, the standard penetration test and cone penetration test). The digging of test pits and trenching (particularly for locating faults and slide planes) may also be used to learn about soil conditions at depth. Large-diameter borings are rarely used due to safety concerns and expense but are sometimes used to allow a geologist or engineer to be lowered into the borehole for direct visual and manual examination of the soil and rock stratigraphy.", "title": "Roles" }, { "paragraph_id": 12, "text": "A variety of soil samplers exists to meet the needs of different engineering projects. The standard penetration test, which uses a thick-walled split spoon sampler, is the most common way to collect disturbed samples. Piston samplers, employing a thin-walled tube, are most commonly used for the collection of less disturbed samples. More advanced methods, such as the Sherbrooke block sampler, are superior, but expensive. Coring frozen ground provides high-quality undisturbed samples from any ground conditions, such as fill, sand, moraine, and rock fracture zones.", "title": "Roles" }, { "paragraph_id": 13, "text": "Geotechnical centrifuge modeling is another method of testing physical scale models of geotechnical problems. The use of a centrifuge enhances the similarity of the scale model tests involving soil because the strength and stiffness of soil are very sensitive to the confining pressure. The centrifugal acceleration allows a researcher to obtain large (prototype-scale) stresses in small physical models.", "title": "Roles" }, { "paragraph_id": 14, "text": "The foundation of a structure's infrastructure transmits loads from the structure to the earth. Geotechnical engineers design foundations based on the load characteristics of the structure and the properties of the soils and bedrock at the site. In general, geotechnical engineers first estimate the magnitude and location of loads to be supported, before developing an investigation plan to explore the subsurface and also determining the necessary soil parameters through field and lab testing. Following which, they may begin the design of an engineering foundation. The primary considerations for a geotechnical engineer in foundation design are bearing capacity, settlement, and ground movement beneath the foundations.", "title": "Roles" }, { "paragraph_id": 15, "text": "Geotechnical engineers are also involved in the planning and execution of earthworks, which include ground improvement, slope stabilization, and stope stability analysis.", "title": "Roles" }, { "paragraph_id": 16, "text": "Various geotechnical engineering methods can be used for ground improvement, including reinforcement geosynthetics such as geocells and geogrids, which disperse loads over a larger area, increasing the load-bearing capacity of soil. Through these methods, geotechnical engineers can reduce direct and long-term costs.", "title": "Roles" }, { "paragraph_id": 17, "text": "Geotechnical engineers can analyze and improve the stability of slopes using engineering methods. Slope stability is determined by the balance of shear stress and shear strength. A previously stable slope may be initially affected by various factors, making the slope unstable. Nonetheless, geotechnical engineers can design and implement engineered slopes to increase stability.", "title": "Roles" }, { "paragraph_id": 18, "text": "Stability analysis is needed for the design of engineered slopes and for estimating the risk of slope failure in natural or designed slopes by determining the conditions under which the topmost mass of soil will slip relative to the base of soil and lead to slope failure. If the interface between the mass and the base of a slope has a complex geometry, slope stability analysis is difficult and numerical solution methods are required. Typically, the exact geometry of the interface is not known and a simplified interface geometry is assumed. Finite slopes require three-dimensional models to be analyzed, so most slopes are analyzed assuming that they are infinitely wide and can be represented by two-dimensional models.", "title": "Roles" }, { "paragraph_id": 19, "text": "Geosynthetics are a type of plastic polymer products used in geotechnical engineering that improve engineering performance while reducing costs. This includes geotextiles, geogrids, geomembranes, geocells, and geocomposites. The synthetic nature of the products make them suitable for use in the ground where high levels of durability are required. Their main functions include drainage, filtration, reinforcement, separation, and containment.", "title": "Sub-disciplines" }, { "paragraph_id": 20, "text": "Geosynthetics are available in a wide range of forms and materials, each to suit a slightly different end-use, although they are frequently used together. Some reinforcement geosynthetics, such as geogrids and more recently, cellular confinement systems, have shown to improve bearing capacity, modulus factors and soil stiffness and strength. These products have a wide range of applications and are currently used in many civil and geotechnical engineering applications including roads, airfields, railroads, embankments, piled embankments, retaining structures, reservoirs, canals, dams, landfills, bank protection and coastal engineering.", "title": "Sub-disciplines" }, { "paragraph_id": 21, "text": "Offshore (or marine) geotechnical engineering is concerned with foundation design for human-made structures in the sea, away from the coastline (in opposition to onshore or nearshore engineering). Oil platforms, artificial islands and submarine pipelines are examples of such structures.", "title": "Sub-disciplines" }, { "paragraph_id": 22, "text": "There are a number of significant differences between onshore and offshore geotechnical engineering. Notably, site investigation and ground improvement on the seabed are more expensive; the offshore structures are exposed to a wider range of geohazards; and the environmental and financial consequences are higher in case of failure. Offshore structures are exposed to various environmental loads, notably wind, waves and currents. These phenomena may affect the integrity or the serviceability of the structure and its foundation during its operational lifespan and need to be taken into account in offshore design.", "title": "Sub-disciplines" }, { "paragraph_id": 23, "text": "In subsea geotechnical engineering, seabed materials are considered a two-phase material composed of rock or mineral particles and water. Structures may be fixed in place in the seabed—as is the case for piers, jettys and fixed-bottom wind turbines—or may comprise a floating structure that remains roughly fixed relative to its geotechnical anchor point. Undersea mooring of human-engineered floating structures include a large number of offshore oil and gas platforms and, since 2008, a few floating wind turbines. Two common types of engineered design for anchoring floating structures include tension-leg and catenary loose mooring systems.", "title": "Sub-disciplines" }, { "paragraph_id": 24, "text": "First proposed by Karl Terzaghi and later discussed in a paper by Ralph B. Peck, the observational method is a managed process of construction control, monitoring, and review, which enables modifications to be incorporated during and after construction. The objective of the method is to achieve a greater overall economy, without compromising safety, by creating designs based on the most probable conditions rather than the most unfavorable. Using the observational method, gaps in available information are filled by measurements and investigation, which aid in assessing the behavior of the structure during construction, which in turn can be modified in accordance with the findings. The method was described by Peck as \"learn-as-you-go\".", "title": "Observational method" }, { "paragraph_id": 25, "text": "The observational method may be described as follows:", "title": "Observational method" }, { "paragraph_id": 26, "text": "The observational method is suitable for construction that has already begun when an unexpected development occurs, or when a failure or accident looms or has already occurred. It is unsuitable for projects whose design cannot be altered during construction.", "title": "Observational method" }, { "paragraph_id": 27, "text": "Engineering portal", "title": "See also" } ]
Geotechnical engineering, also known as geotechnics, is the branch of civil engineering concerned with the engineering behavior of earth materials. It uses the principles of soil mechanics and rock mechanics to solve its engineering problems. It also relies on knowledge of geology, hydrology, geophysics, and other related sciences. Geotechnical engineering has applications in military engineering, mining engineering, petroleum engineering, coastal engineering, and offshore construction. The fields of geotechnical engineering and engineering geology have overlapping knowledge areas. However, while geotechnical engineering is a specialty of civil engineering, engineering geology is a specialty of geology.
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2023-12-20T16:20:02Z
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https://en.wikipedia.org/wiki/Geotechnical_engineering
12,307
Gustave Flaubert
Gustave Flaubert (UK: /ˈfloʊbɛər/ FLOH-bair, US: /floʊˈbɛər/ floh-BAIR, French: [ɡystav flobɛʁ]; 12 December 1821 – 8 May 1880) was a French novelist. He has been considered the leading exponent of literary realism in his country and abroad. According to the literary theorist Cornelius Quassus, "in Flaubert, realism strives for formal perfection, so the presentation of reality tends to be neutral, emphasizing the values and importance of style as an objective method of presenting reality". He is known especially for his debut novel Madame Bovary (1857), his Correspondence, and his scrupulous devotion to his style and aesthetics. The celebrated short story writer Guy de Maupassant was a protégé of Flaubert. Flaubert was born in Rouen, in the Seine-Maritime department of Upper Normandy, in northern France. He was the second son of Anne Justine Caroline (née Fleuriot; 1793–1872) and Achille-Cléophas Flaubert (1784–1846), director and senior surgeon of the major hospital in Rouen. He began writing at an early age, as early as eight according to some sources. He was educated at the Lycée Pierre-Corneille in Rouen, and did not leave until 1840, whereby he went to Paris to study law. In Paris, he was an indifferent student and found the city distasteful. He made a few acquaintances, including Victor Hugo. Toward the end of 1840, he travelled in the Pyrenees and Corsica. In 1846, after an attack of epilepsy, he left Paris and abandoned the study of law. From 1846 to 1854, Flaubert had a relationship with the poet Louise Colet; his letters to her have survived. After leaving Paris, he returned to Croisset, near the Seine, close to Rouen, and lived there for the rest of his life. He did however make occasional visits to Paris and England, where he apparently had a mistress. Politically, Flaubert described himself as a "romantic and liberal old dunce" (vieille ganache romantique et libérale), an "enraged liberal" (libéral enragé), a hater of all despotism, and someone who celebrated every protest of the individual against power and monopolies. With his lifelong friend Maxime Du Camp, he travelled in Brittany in 1846. In 1849–50 he went on a long journey to the Middle East, visiting Greece and Egypt. In Beirut he contracted syphilis. He spent five weeks in Istanbul in 1850. He visited Carthage in 1858 to conduct research for his novel Salammbô. Flaubert never married and never had children. His reason for not having children is revealed in a letter he sent to Colet, dated 11 December 1852. In it he revealed that he was opposed to childbirth, saying he would "transmit to no one the aggravations and the disgrace of existence". Flaubert was very open about his sexual activities with prostitutes in his writings on his travels. He suspected that a chancre on his penis was from a Maronite or a Turkish girl. He also engaged in intercourse with male prostitutes in Beirut and Egypt; in one of his letters, he describes a "pockmarked young rascal wearing a white turban". According to his biographer Émile Faguet, his affair with Louise Colet was his only serious romantic relationship. Flaubert was a diligent worker and often complained in his letters to friends about the strenuous nature of his work. He was close to his niece, Caroline Commanville, and had a close friendship and correspondence with George Sand. He occasionally visited Parisian acquaintances, including Émile Zola, Alphonse Daudet, Ivan Turgenev, and Edmond and Jules de Goncourt. The 1870s were a difficult time for Flaubert. Prussian soldiers occupied his house during the War of 1870, and his mother died in 1872. After her death, he fell into financial difficulty due to business failures on the part of his niece's husband. Flaubert lived with venereal diseases most of his life. His health declined and he died at Croisset of a cerebral hemorrhage in 1880 at the age of 58. He was buried in the family vault in the cemetery of Rouen. A monument to him by Henri Chapu was unveiled at the museum of Rouen. As a devoted Spinozist, Flaubert was significantly influenced by Spinoza's thought. He was also a pantheist. His first finished work was November, a novella, which was completed in 1842. In September 1849, Flaubert completed the first version of a novel, The Temptation of Saint Anthony. He read the novel aloud to Louis Bouilhet and Maxime Du Camp over the course of four days, not allowing them to interrupt or give any opinions. At the end of the reading, his friends told him to throw the manuscript in the fire, suggesting instead that he focus on day-to-day life rather than fantastic subjects. In 1850, after returning from Egypt, Flaubert began work on Madame Bovary. The novel, which took five years to write, was serialized in the Revue de Paris in 1856. The government brought an action against the publisher and author on the charge of immorality, which was heard during the following year, but both were acquitted. When Madame Bovary appeared in book form, it met with a warm reception. In 1858, Flaubert travelled to Carthage to gather material for his next novel, Salammbô. The novel was completed in 1862 after four years of work. Drawing on his youth, Flaubert next wrote L'Éducation sentimentale (Sentimental Education), an effort that took seven years. This was his last complete novel, published in the year 1869. He wrote an unsuccessful drama, Le Candidat, and published a reworked version of The Temptation of Saint Anthony, portions of which had been published as early as 1857. He devoted much of his time to an ongoing project, Les Deux Cloportes (The Two Woodlice), which later became Bouvard et Pécuchet, breaking the obsessive project only to write the Three Tales in 1877. This book comprises three stories: Un Cœur simple (A Simple Heart), La Légende de Saint-Julien l'Hospitalier (The Legend of St. Julian the Hospitaller), and Hérodias (Herodias). After the publication of the stories, he spent the remainder of his life toiling on the unfinished Bouvard et Pécuchet, which was posthumously printed in 1881. It was a grand satire on the futility of human knowledge and the ubiquity of mediocrity. He believed the work to be his masterpiece, though the posthumous version received lukewarm reviews. Flaubert was a prolific letter writer, and his letters have been collected in several publications. At the time of his death, he may have been working on a further historical novel, based on the Battle of Thermopylae. Flaubert famously avoided the inexact, the abstract and the vaguely inapt expression, and scrupulously eschewed the cliché. In a letter to George Sand he said that he spent his time "trying to write harmonious sentences, avoiding assonances". Flaubert believed in and pursued the principle of finding "le mot juste" ("the right word"), which he considered as the key means to achieve high quality in literary art. He worked in sullen solitude, sometimes occupying a week in the completion of one page, never satisfied with what he had composed. In Flaubert's correspondence he intimates this, explaining correct prose did not flow out of him and that his style was achieved through work and revision. Flaubert said he wished to forge a style "that would be rhythmic as verse, precise as the language of the sciences, undulant, deep-voiced as a cello, tipped with flame: a style that would pierce your idea like a dagger, and on which your thought would sail easily ahead over a smooth surface, like a skiff before a good tail wind." He famously said that "an author in his book must be like God in the universe, present everywhere and visible nowhere." This painstaking style of writing is also evident when one compares Flaubert's output over a lifetime to that of his peers (for example Balzac or Zola). Flaubert published much less prolifically than was the norm for his time and never got near the pace of a novel a year, as his peers often achieved during their peaks of activity. Walter Pater famously called Flaubert the "martyr of style". In the assessment of critic James Wood: Novelists should thank Flaubert the way poets thank spring; it all begins again with him. There really is a time before Flaubert and a time after him. Flaubert decisively established what most readers and writers think of as modern realist narration, and his influence is almost too familiar to be visible. We hardly remark of good prose that it favors the telling and brilliant detail; that it privileges a high degree of visual noticing; that it maintains an unsentimental composure and knows how to withdraw, like a good valet, from superfluous commentary; that it judges good and bad neutrally; that it seeks out the truth, even at the cost of repelling us; and that the author's fingerprints on all this are paradoxically, traceable but not visible. You can find some of this in Defoe or Austen or Balzac, but not all of it until Flaubert. As a writer, other than a pure stylist, Flaubert was nearly equal parts romantic and realist. Hence, members of various schools, especially realists and formalists, have traced their origins to his work. The exactitude with which he adapts his expressions to his purpose can be seen in all parts of his work, especially in the portraits he draws of the figures in his principal romances. The degree to which Flaubert's fame has extended since his death presents "an interesting chapter of literary history in itself". He is also credited with spreading the popularity of the color Tuscany Cypress, a color often mentioned in his chef-d'œuvre Madame Bovary. Flaubert's lean and precise writing style has had a large influence on 20th-century writers such as Franz Kafka and J. M. Coetzee. As Vladimir Nabokov discussed in his famous lecture series: The greatest literary influence upon Kafka was Flaubert's. Flaubert who loathed pretty-pretty prose would have applauded Kafka's attitude towards his tool. Kafka liked to draw his terms from the language of law and science, giving them a kind of ironic precision, with no intrusion of the author's private sentiments; this was exactly Flaubert's method through which he achieved a singular poetic effect. The legacy of his work habits can best be described, therefore, as paving the way towards a slower and more introspective manner of writing. The publication of Madame Bovary in 1856 was followed by more scandal than admiration; it was not understood at first that this novel was the beginning of something new: the scrupulously truthful portraiture of life. Gradually, this aspect of his genius was accepted, and it began to crowd out all others. At the time of his death, he was widely regarded as the most influential French Realist. Under this aspect Flaubert exercised an extraordinary influence over Guy de Maupassant, Edmond de Goncourt, Alphonse Daudet, and Émile Zola. Even after the decline of the Realist school, Flaubert did not lose prestige in the literary community; he continues to appeal to other writers because of his deep commitment to aesthetic principles, his devotion to style, and his indefatigable pursuit of the perfect expression. His Œuvres Complètes (8 vols., 1885) were printed from the original manuscripts, and included, besides the works mentioned already, the two plays Le Candidat and Le Château des cœurs. Another edition (10 vols.) appeared in 1873–85. Flaubert's correspondence with George Sand was published in 1884 with an introduction by Guy de Maupassant. He has been admired or written about by almost every major literary personality of the 20th century, including philosophers and sociologists such as Michel Foucault, Roland Barthes, Pierre Bourdieu, and Jean-Paul Sartre, the latter of whose partially psychoanalytic portrait of Flaubert in The Family Idiot was published in 1971. Georges Perec named Sentimental Education as one of his favourite novels. The Peruvian novelist Mario Vargas Llosa is another great admirer of Flaubert. Apart from Perpetual Orgy, which is solely devoted to Flaubert's art, one can find lucid discussions in Vargas Llosa's Letters to a Young Novelist (published 2003). In a public lecture in May 1966 at the Kaufmann Art Gallery in New York, Marshall McLuhan claimed: "I derived all my knowledge of media from people like Flaubert and Rimbaud and Baudelaire." On the occasion of Flaubert's 198th birthday (12 December 2019), a group of researchers at CNRS published a neural language model under his name.
[ { "paragraph_id": 0, "text": "Gustave Flaubert (UK: /ˈfloʊbɛər/ FLOH-bair, US: /floʊˈbɛər/ floh-BAIR, French: [ɡystav flobɛʁ]; 12 December 1821 – 8 May 1880) was a French novelist. He has been considered the leading exponent of literary realism in his country and abroad. According to the literary theorist Cornelius Quassus, \"in Flaubert, realism strives for formal perfection, so the presentation of reality tends to be neutral, emphasizing the values and importance of style as an objective method of presenting reality\". He is known especially for his debut novel Madame Bovary (1857), his Correspondence, and his scrupulous devotion to his style and aesthetics. The celebrated short story writer Guy de Maupassant was a protégé of Flaubert.", "title": "" }, { "paragraph_id": 1, "text": "Flaubert was born in Rouen, in the Seine-Maritime department of Upper Normandy, in northern France. He was the second son of Anne Justine Caroline (née Fleuriot; 1793–1872) and Achille-Cléophas Flaubert (1784–1846), director and senior surgeon of the major hospital in Rouen. He began writing at an early age, as early as eight according to some sources.", "title": "Life" }, { "paragraph_id": 2, "text": "He was educated at the Lycée Pierre-Corneille in Rouen, and did not leave until 1840, whereby he went to Paris to study law. In Paris, he was an indifferent student and found the city distasteful. He made a few acquaintances, including Victor Hugo. Toward the end of 1840, he travelled in the Pyrenees and Corsica. In 1846, after an attack of epilepsy, he left Paris and abandoned the study of law.", "title": "Life" }, { "paragraph_id": 3, "text": "From 1846 to 1854, Flaubert had a relationship with the poet Louise Colet; his letters to her have survived. After leaving Paris, he returned to Croisset, near the Seine, close to Rouen, and lived there for the rest of his life. He did however make occasional visits to Paris and England, where he apparently had a mistress.", "title": "Life" }, { "paragraph_id": 4, "text": "Politically, Flaubert described himself as a \"romantic and liberal old dunce\" (vieille ganache romantique et libérale), an \"enraged liberal\" (libéral enragé), a hater of all despotism, and someone who celebrated every protest of the individual against power and monopolies.", "title": "Life" }, { "paragraph_id": 5, "text": "With his lifelong friend Maxime Du Camp, he travelled in Brittany in 1846. In 1849–50 he went on a long journey to the Middle East, visiting Greece and Egypt. In Beirut he contracted syphilis. He spent five weeks in Istanbul in 1850. He visited Carthage in 1858 to conduct research for his novel Salammbô.", "title": "Life" }, { "paragraph_id": 6, "text": "Flaubert never married and never had children. His reason for not having children is revealed in a letter he sent to Colet, dated 11 December 1852. In it he revealed that he was opposed to childbirth, saying he would \"transmit to no one the aggravations and the disgrace of existence\".", "title": "Life" }, { "paragraph_id": 7, "text": "Flaubert was very open about his sexual activities with prostitutes in his writings on his travels. He suspected that a chancre on his penis was from a Maronite or a Turkish girl. He also engaged in intercourse with male prostitutes in Beirut and Egypt; in one of his letters, he describes a \"pockmarked young rascal wearing a white turban\".", "title": "Life" }, { "paragraph_id": 8, "text": "According to his biographer Émile Faguet, his affair with Louise Colet was his only serious romantic relationship.", "title": "Life" }, { "paragraph_id": 9, "text": "Flaubert was a diligent worker and often complained in his letters to friends about the strenuous nature of his work. He was close to his niece, Caroline Commanville, and had a close friendship and correspondence with George Sand. He occasionally visited Parisian acquaintances, including Émile Zola, Alphonse Daudet, Ivan Turgenev, and Edmond and Jules de Goncourt.", "title": "Life" }, { "paragraph_id": 10, "text": "The 1870s were a difficult time for Flaubert. Prussian soldiers occupied his house during the War of 1870, and his mother died in 1872. After her death, he fell into financial difficulty due to business failures on the part of his niece's husband. Flaubert lived with venereal diseases most of his life. His health declined and he died at Croisset of a cerebral hemorrhage in 1880 at the age of 58. He was buried in the family vault in the cemetery of Rouen. A monument to him by Henri Chapu was unveiled at the museum of Rouen.", "title": "Life" }, { "paragraph_id": 11, "text": "As a devoted Spinozist, Flaubert was significantly influenced by Spinoza's thought. He was also a pantheist.", "title": "Life" }, { "paragraph_id": 12, "text": "His first finished work was November, a novella, which was completed in 1842.", "title": "Life" }, { "paragraph_id": 13, "text": "In September 1849, Flaubert completed the first version of a novel, The Temptation of Saint Anthony. He read the novel aloud to Louis Bouilhet and Maxime Du Camp over the course of four days, not allowing them to interrupt or give any opinions. At the end of the reading, his friends told him to throw the manuscript in the fire, suggesting instead that he focus on day-to-day life rather than fantastic subjects.", "title": "Life" }, { "paragraph_id": 14, "text": "In 1850, after returning from Egypt, Flaubert began work on Madame Bovary. The novel, which took five years to write, was serialized in the Revue de Paris in 1856. The government brought an action against the publisher and author on the charge of immorality, which was heard during the following year, but both were acquitted. When Madame Bovary appeared in book form, it met with a warm reception.", "title": "Life" }, { "paragraph_id": 15, "text": "In 1858, Flaubert travelled to Carthage to gather material for his next novel, Salammbô. The novel was completed in 1862 after four years of work.", "title": "Life" }, { "paragraph_id": 16, "text": "Drawing on his youth, Flaubert next wrote L'Éducation sentimentale (Sentimental Education), an effort that took seven years. This was his last complete novel, published in the year 1869.", "title": "Life" }, { "paragraph_id": 17, "text": "He wrote an unsuccessful drama, Le Candidat, and published a reworked version of The Temptation of Saint Anthony, portions of which had been published as early as 1857. He devoted much of his time to an ongoing project, Les Deux Cloportes (The Two Woodlice), which later became Bouvard et Pécuchet, breaking the obsessive project only to write the Three Tales in 1877. This book comprises three stories: Un Cœur simple (A Simple Heart), La Légende de Saint-Julien l'Hospitalier (The Legend of St. Julian the Hospitaller), and Hérodias (Herodias). After the publication of the stories, he spent the remainder of his life toiling on the unfinished Bouvard et Pécuchet, which was posthumously printed in 1881. It was a grand satire on the futility of human knowledge and the ubiquity of mediocrity. He believed the work to be his masterpiece, though the posthumous version received lukewarm reviews. Flaubert was a prolific letter writer, and his letters have been collected in several publications.", "title": "Life" }, { "paragraph_id": 18, "text": "At the time of his death, he may have been working on a further historical novel, based on the Battle of Thermopylae.", "title": "Life" }, { "paragraph_id": 19, "text": "Flaubert famously avoided the inexact, the abstract and the vaguely inapt expression, and scrupulously eschewed the cliché. In a letter to George Sand he said that he spent his time \"trying to write harmonious sentences, avoiding assonances\".", "title": "Perfectionist style" }, { "paragraph_id": 20, "text": "Flaubert believed in and pursued the principle of finding \"le mot juste\" (\"the right word\"), which he considered as the key means to achieve high quality in literary art. He worked in sullen solitude, sometimes occupying a week in the completion of one page, never satisfied with what he had composed. In Flaubert's correspondence he intimates this, explaining correct prose did not flow out of him and that his style was achieved through work and revision. Flaubert said he wished to forge a style \"that would be rhythmic as verse, precise as the language of the sciences, undulant, deep-voiced as a cello, tipped with flame: a style that would pierce your idea like a dagger, and on which your thought would sail easily ahead over a smooth surface, like a skiff before a good tail wind.\" He famously said that \"an author in his book must be like God in the universe, present everywhere and visible nowhere.\"", "title": "Perfectionist style" }, { "paragraph_id": 21, "text": "This painstaking style of writing is also evident when one compares Flaubert's output over a lifetime to that of his peers (for example Balzac or Zola). Flaubert published much less prolifically than was the norm for his time and never got near the pace of a novel a year, as his peers often achieved during their peaks of activity. Walter Pater famously called Flaubert the \"martyr of style\".", "title": "Perfectionist style" }, { "paragraph_id": 22, "text": "In the assessment of critic James Wood:", "title": "Legacy" }, { "paragraph_id": 23, "text": "Novelists should thank Flaubert the way poets thank spring; it all begins again with him. There really is a time before Flaubert and a time after him. Flaubert decisively established what most readers and writers think of as modern realist narration, and his influence is almost too familiar to be visible. We hardly remark of good prose that it favors the telling and brilliant detail; that it privileges a high degree of visual noticing; that it maintains an unsentimental composure and knows how to withdraw, like a good valet, from superfluous commentary; that it judges good and bad neutrally; that it seeks out the truth, even at the cost of repelling us; and that the author's fingerprints on all this are paradoxically, traceable but not visible. You can find some of this in Defoe or Austen or Balzac, but not all of it until Flaubert.", "title": "Legacy" }, { "paragraph_id": 24, "text": "As a writer, other than a pure stylist, Flaubert was nearly equal parts romantic and realist. Hence, members of various schools, especially realists and formalists, have traced their origins to his work. The exactitude with which he adapts his expressions to his purpose can be seen in all parts of his work, especially in the portraits he draws of the figures in his principal romances. The degree to which Flaubert's fame has extended since his death presents \"an interesting chapter of literary history in itself\". He is also credited with spreading the popularity of the color Tuscany Cypress, a color often mentioned in his chef-d'œuvre Madame Bovary.", "title": "Legacy" }, { "paragraph_id": 25, "text": "Flaubert's lean and precise writing style has had a large influence on 20th-century writers such as Franz Kafka and J. M. Coetzee. As Vladimir Nabokov discussed in his famous lecture series:", "title": "Legacy" }, { "paragraph_id": 26, "text": "The greatest literary influence upon Kafka was Flaubert's. Flaubert who loathed pretty-pretty prose would have applauded Kafka's attitude towards his tool. Kafka liked to draw his terms from the language of law and science, giving them a kind of ironic precision, with no intrusion of the author's private sentiments; this was exactly Flaubert's method through which he achieved a singular poetic effect. The legacy of his work habits can best be described, therefore, as paving the way towards a slower and more introspective manner of writing.", "title": "Legacy" }, { "paragraph_id": 27, "text": "The publication of Madame Bovary in 1856 was followed by more scandal than admiration; it was not understood at first that this novel was the beginning of something new: the scrupulously truthful portraiture of life. Gradually, this aspect of his genius was accepted, and it began to crowd out all others. At the time of his death, he was widely regarded as the most influential French Realist. Under this aspect Flaubert exercised an extraordinary influence over Guy de Maupassant, Edmond de Goncourt, Alphonse Daudet, and Émile Zola. Even after the decline of the Realist school, Flaubert did not lose prestige in the literary community; he continues to appeal to other writers because of his deep commitment to aesthetic principles, his devotion to style, and his indefatigable pursuit of the perfect expression.", "title": "Legacy" }, { "paragraph_id": 28, "text": "His Œuvres Complètes (8 vols., 1885) were printed from the original manuscripts, and included, besides the works mentioned already, the two plays Le Candidat and Le Château des cœurs. Another edition (10 vols.) appeared in 1873–85. Flaubert's correspondence with George Sand was published in 1884 with an introduction by Guy de Maupassant.", "title": "Legacy" }, { "paragraph_id": 29, "text": "He has been admired or written about by almost every major literary personality of the 20th century, including philosophers and sociologists such as Michel Foucault, Roland Barthes, Pierre Bourdieu, and Jean-Paul Sartre, the latter of whose partially psychoanalytic portrait of Flaubert in The Family Idiot was published in 1971. Georges Perec named Sentimental Education as one of his favourite novels. The Peruvian novelist Mario Vargas Llosa is another great admirer of Flaubert. Apart from Perpetual Orgy, which is solely devoted to Flaubert's art, one can find lucid discussions in Vargas Llosa's Letters to a Young Novelist (published 2003). In a public lecture in May 1966 at the Kaufmann Art Gallery in New York, Marshall McLuhan claimed: \"I derived all my knowledge of media from people like Flaubert and Rimbaud and Baudelaire.\"", "title": "Legacy" }, { "paragraph_id": 30, "text": "On the occasion of Flaubert's 198th birthday (12 December 2019), a group of researchers at CNRS published a neural language model under his name.", "title": "Legacy" } ]
Gustave Flaubert was a French novelist. He has been considered the leading exponent of literary realism in his country and abroad. According to the literary theorist Cornelius Quassus, "in Flaubert, realism strives for formal perfection, so the presentation of reality tends to be neutral, emphasizing the values and importance of style as an objective method of presenting reality". He is known especially for his debut novel Madame Bovary (1857), his Correspondence, and his scrupulous devotion to his style and aesthetics. The celebrated short story writer Guy de Maupassant was a protégé of Flaubert.
2001-06-19T17:54:54Z
2023-10-24T16:07:10Z
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https://en.wikipedia.org/wiki/Gustave_Flaubert
12,308
Gregory Chaitin
Gregory John Chaitin (/ˈtʃaɪtɪn/ CHY-tin; born 25 June 1947) is an Argentine-American mathematician and computer scientist. Beginning in the late 1960s, Chaitin made contributions to algorithmic information theory and metamathematics, in particular a computer-theoretic result equivalent to Gödel's incompleteness theorem. He is considered to be one of the founders of what is today known as algorithmic (Solomonoff–Kolmogorov–Chaitin, Kolmogorov or program-size) complexity together with Andrei Kolmogorov and Ray Solomonoff. Along with the works of e.g. Solomonoff, Kolmogorov, Martin-Löf, and Leonid Levin, algorithmic information theory became a foundational part of theoretical computer science, information theory, and mathematical logic. It is a common subject in several computer science curricula. Besides computer scientists, Chaitin's work draws attention of many philosophers and mathematicians to fundamental problems in mathematical creativity and digital philosophy. Gregory Chaitin is Jewish and he attended the Bronx High School of Science and City College of New York, where he (still in his teens) developed the theory that led to his independent discovery of algorithmic complexity. Chaitin has defined Chaitin's constant Ω, a real number whose digits are equidistributed and which is sometimes informally described as an expression of the probability that a random program will halt. Ω has the mathematical property that it is definable, with asymptotic approximations from below (but not from above), but not computable. Chaitin is also the originator of using graph coloring to do register allocation in compiling, a process known as Chaitin's algorithm. He was formerly a researcher at IBM's Thomas J. Watson Research Center in New York. He has written more than 10 books that have been translated to about 15 languages. He is today interested in questions of metabiology and information-theoretic formalizations of the theory of evolution, and is a member of the Institute for Advanced Studies at Mohammed VI Polytechnic University. Chaitin also writes about philosophy, especially metaphysics and philosophy of mathematics (particularly about epistemological matters in mathematics). In metaphysics, Chaitin claims that algorithmic information theory is the key to solving problems in the field of biology (obtaining a formal definition of 'life', its origin and evolution) and neuroscience (the problem of consciousness and the study of the mind). In recent writings, he defends a position known as digital philosophy. In the epistemology of mathematics, he claims that his findings in mathematical logic and algorithmic information theory show there are "mathematical facts that are true for no reason, that are true by accident". Chaitin proposes that mathematicians must abandon any hope of proving those mathematical facts and adopt a quasi-empirical methodology. In 1995 he was given the degree of doctor of science honoris causa by the University of Maine. In 2002 he was given the title of honorary professor by the University of Buenos Aires in Argentina, where his parents were born and where Chaitin spent part of his youth. In 2007 he was given a Leibniz Medal by Wolfram Research. In 2009 he was given the degree of doctor of philosophy honoris causa by the National University of Córdoba. He was formerly a researcher at IBM's Thomas J. Watson Research Center and a professor at the Federal University of Rio de Janeiro. Some philosophers and logicians disagree with the philosophical conclusions that Chaitin has drawn from his theorems related to what Chaitin thinks is a kind of fundamental arithmetic randomness. The logician Torkel Franzén criticized Chaitin's interpretation of Gödel's incompleteness theorem and the alleged explanation for it that Chaitin's work represents.
[ { "paragraph_id": 0, "text": "Gregory John Chaitin (/ˈtʃaɪtɪn/ CHY-tin; born 25 June 1947) is an Argentine-American mathematician and computer scientist. Beginning in the late 1960s, Chaitin made contributions to algorithmic information theory and metamathematics, in particular a computer-theoretic result equivalent to Gödel's incompleteness theorem. He is considered to be one of the founders of what is today known as algorithmic (Solomonoff–Kolmogorov–Chaitin, Kolmogorov or program-size) complexity together with Andrei Kolmogorov and Ray Solomonoff. Along with the works of e.g. Solomonoff, Kolmogorov, Martin-Löf, and Leonid Levin, algorithmic information theory became a foundational part of theoretical computer science, information theory, and mathematical logic. It is a common subject in several computer science curricula. Besides computer scientists, Chaitin's work draws attention of many philosophers and mathematicians to fundamental problems in mathematical creativity and digital philosophy.", "title": "" }, { "paragraph_id": 1, "text": "Gregory Chaitin is Jewish and he attended the Bronx High School of Science and City College of New York, where he (still in his teens) developed the theory that led to his independent discovery of algorithmic complexity.", "title": "Mathematics and computer science" }, { "paragraph_id": 2, "text": "Chaitin has defined Chaitin's constant Ω, a real number whose digits are equidistributed and which is sometimes informally described as an expression of the probability that a random program will halt. Ω has the mathematical property that it is definable, with asymptotic approximations from below (but not from above), but not computable.", "title": "Mathematics and computer science" }, { "paragraph_id": 3, "text": "Chaitin is also the originator of using graph coloring to do register allocation in compiling, a process known as Chaitin's algorithm.", "title": "Mathematics and computer science" }, { "paragraph_id": 4, "text": "He was formerly a researcher at IBM's Thomas J. Watson Research Center in New York. He has written more than 10 books that have been translated to about 15 languages. He is today interested in questions of metabiology and information-theoretic formalizations of the theory of evolution, and is a member of the Institute for Advanced Studies at Mohammed VI Polytechnic University.", "title": "Mathematics and computer science" }, { "paragraph_id": 5, "text": "Chaitin also writes about philosophy, especially metaphysics and philosophy of mathematics (particularly about epistemological matters in mathematics). In metaphysics, Chaitin claims that algorithmic information theory is the key to solving problems in the field of biology (obtaining a formal definition of 'life', its origin and evolution) and neuroscience (the problem of consciousness and the study of the mind).", "title": "Other scholarly contributions" }, { "paragraph_id": 6, "text": "In recent writings, he defends a position known as digital philosophy. In the epistemology of mathematics, he claims that his findings in mathematical logic and algorithmic information theory show there are \"mathematical facts that are true for no reason, that are true by accident\". Chaitin proposes that mathematicians must abandon any hope of proving those mathematical facts and adopt a quasi-empirical methodology.", "title": "Other scholarly contributions" }, { "paragraph_id": 7, "text": "In 1995 he was given the degree of doctor of science honoris causa by the University of Maine. In 2002 he was given the title of honorary professor by the University of Buenos Aires in Argentina, where his parents were born and where Chaitin spent part of his youth. In 2007 he was given a Leibniz Medal by Wolfram Research. In 2009 he was given the degree of doctor of philosophy honoris causa by the National University of Córdoba. He was formerly a researcher at IBM's Thomas J. Watson Research Center and a professor at the Federal University of Rio de Janeiro.", "title": "Honors" }, { "paragraph_id": 8, "text": "Some philosophers and logicians disagree with the philosophical conclusions that Chaitin has drawn from his theorems related to what Chaitin thinks is a kind of fundamental arithmetic randomness. The logician Torkel Franzén criticized Chaitin's interpretation of Gödel's incompleteness theorem and the alleged explanation for it that Chaitin's work represents.", "title": "Criticism" } ]
Gregory John Chaitin is an Argentine-American mathematician and computer scientist. Beginning in the late 1960s, Chaitin made contributions to algorithmic information theory and metamathematics, in particular a computer-theoretic result equivalent to Gödel's incompleteness theorem. He is considered to be one of the founders of what is today known as algorithmic complexity together with Andrei Kolmogorov and Ray Solomonoff. Along with the works of e.g. Solomonoff, Kolmogorov, Martin-Löf, and Leonid Levin, algorithmic information theory became a foundational part of theoretical computer science, information theory, and mathematical logic. It is a common subject in several computer science curricula. Besides computer scientists, Chaitin's work draws attention of many philosophers and mathematicians to fundamental problems in mathematical creativity and digital philosophy.
2001-08-24T09:05:50Z
2023-11-01T11:12:28Z
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https://en.wikipedia.org/wiki/Gregory_Chaitin
12,309
Goran Bregović
Goran Bregović (born 22 March 1950) is a recording artist from Bosnia and Herzegovina. He is one of the most internationally known modern musicians and composers of the Slavic-speaking countries in the Balkans, and is one of the few former Yugoslav musicians who has performed at major international venues such as Carnegie Hall, Royal Albert Hall and L'Olympia. A Sarajevo native, Bregović started out with Kodeksi and Jutro, but rose to prominence as the main creative mind and lead guitarist of Bijelo Dugme, widely considered one of the most popular and influential recording acts ever to exist in the Socialist Federal Republic of Yugoslavia. After Bijelo Dugme split up, he embarked on several critically and commercially successful projects, and started composing film scores. Among his better known film scores are three of Emir Kusturica's films (Time of the Gypsies, Arizona Dream and Underground). For Time of the Gypsies, Bregović won a Golden Arena Award at the Pula Film Festival in 1990, among other awards. He had also composed for the Academy Award-nominated film La Reine Margot and the Cannes-entered film The Serpent's Kiss. Bregović, during his five-decade long career, has composed for critically acclaimed singers, including Sezen Aksu, Kayah, Iggy Pop, Šaban Bajramović, George Dalaras and Cesária Évora. Born in Sarajevo, PR Bosnia-Herzegovina, FPR Yugoslavia to a Croatian father Franjo Bregović and Serbian mother Borka Perišić, Goran grew up with two younger siblings — sister Dajana and brother Predrag. Their father was from the Croatian region of Prigorje, specifically Sveti Petar Čvrstec village near Križevci, while their mother was born in Virovitica to parents that had shortly before her birth arrived in the nearby village of Čemernica, settling there from the village of Kazanci near Gacko in East Herzegovina. Goran's maternal grandfather fought in the Royal Serbian Army at the Salonica front during World War I and as a reward received land in Slavonia where he soon moved his family. Goran's parents met shortly after World War II in Virovitica where his mother Borka lived and his father Franjo (who fought on the Partisan side during the war) attended a Yugoslav People's Army (JNA) military school. Franjo Bregović soon got his first job, teaching ballistics at a military school in Sarajevo, so the couple that at the time moved there. Goran, their first child, was born in 1950 in Sarajevo. Goran was 10 years old when his parents divorced. In later interviews, he mentioned his father's alcoholism as the reason for the breakdown of their marriage. Soon after the split, his father moved to Livno, taking Goran's younger brother Predrag with him while Goran remained living with his mother in Sarajevo, visiting his father and brother every summer in Livno. Their father soon retired and eventually moved back to his home village in Zagorje while Goran's brother Predrag later moved back to Sarajevo for university studies. Goran played violin in a music school. However, deemed untalented, he was thrown out during second grade. His musical education was thus reduced to what his friend taught him until Goran's mother bought him his first guitar in his early teens. Bregović wanted to enroll in a fine arts high school, but his aunt told his mother that it was supposedly full of homosexuals, which precipitated his mother's decision to send him to a technical (traffic) school. As a compromise for not getting his way, she allowed him to grow his hair long. Upon entering high school, teenage Bregović joined the school band Izohipse where he began on bass guitar. Soon, however, he was kicked out of that school too (this time for misbehavior – he crashed into a school-owned Mercedes-Benz). Bregović then entered grammar school and its school band Beštije (again as a bass guitar player). When he was 16, his mother left him and moved to the coast, meaning that other than having a few relatives to rely on, he mostly had to take care of himself. He did that by playing folk music in a kafana in Konjic, working on construction sites, and selling newspapers. Spotting him at a Beštije gig in 1969, Željko Bebek invited eighteen-year-old Bregović to play bass guitar in his band Kodeksi, which Goran gladly accepted. Eventually, Kodeksi shifted setup so Bregović moved from bass to lead guitar, resulting in Kodeksi having the following line-up during summer 1970: Goran Bregović, Željko Bebek, Zoran Redžić and Milić Vukašinović. All of them would eventually become members of Bijelo Dugme at some point in the future. At the time, they were largely influenced by Led Zeppelin and Black Sabbath. During the fall of 1970, this resulted in the departure of Željko Bebek, who (both as rhythm guitar player and singer) got phased out of the band. At the end of the year, Goran's mother and Zoran's brother arrived in Naples and took them back to Sarajevo. Then, in the autumn of 1971, Bregović enrolled at the University of Sarajevo's Faculty of Philosophy, studying philosophy and sociology. He soon quit, however. At the same time, Milić Vukašinović left for London, so Bregović formed a band with Nuno Arnautalić called Jutro (Morning), which Redžić soon joined as well. Over the next few years, the band changed lineups frequently, and on 1 January 1974 modified its name to Bijelo Dugme ("White Button"). From 1974 until 1989, Bregović played lead guitar and was the main creative force behind Bijelo Dugme (White Button). For years they stood as one of the most popular bands in SFR Yugoslavia. Just as with Jutro previously, he continued as Bijelo Dugme's undisputed leader and decision-maker as well as its public face in the Yugoslav print and electronic media once the band started taking off commercially. Over the band's fifteen-year run, in addition to their enormous popularity at home, led by Bregović, Bijelo Dugme made several attempts at expanding their prominence outside of Yugoslavia. In late 1975, while recording their second album Šta bi dao da si na mom mjestu in London, they additionally recorded an English language track called "Playing the Part" (translated version of their Serbo-Croatian track "Šta bi dao da si na mom mjestu", itself an uncredited cover of Argent's 1972 track "I Am the Dance of Ages") that was packaged as a promo single for English music journalists. Never officially released for mass distribution, the track quickly fell into oblivion. Bijelo Dugme had somewhat better luck with touring abroad, which almost entirely took place in the Eastern Bloc countries as part of their respective cultural exchange programs with SFR Yugoslavia. The band briefly toured the Polish People's Republic during April 1977, a 9-concert leg as part of the tour in support of their third album Eto! Baš hoću!. During their 10-day Polish tour, the band played two concerts on back-to-back nights in Warsaw, followed by Olsztyn, Zielona Góra, three shows on back-to-back days in Poznań, and finally two shows on the same day in Kalisz. While in Poland, they also shot a 30-minute television special for TVP3 Katowice, a regional Katowice-based branch of the state-owned Telewizja Polska. Later that year, following the tour's culmination at a triumphant open-air concert at Hajdučka Česma in Belgrade, Bregović went to serve his mandatory Yugoslav People's Army (JNA) stint. Assigned to a Niš-based unit, the twenty-seven-year-old reported for service on 3 November 1977 and would spend the following year away from music, a period during which the band was also on hiatus. During early 1982, as part of an event bringing together past and future Winter Olympic hosts, the band played in Innsbruck, Austria as representatives of the city of Sarajevo and SFR Yugoslavia, the site of the upcoming Winter Olympics. On return to Yugoslavia from Innsbruck, the band had its baggage confiscated by the Yugoslav customs after undeclared musical equipment was found among their luggage. Some six months later, during summer 1982, Bijelo Dugme went on an impromptu tour of the People's Republic of Bulgaria, playing 41 shows throughout the country from 15 July until 31 August 1982. Despite the tour in support of their latest studio album Doživjeti stotu being over for more than a year, and having no new material to promote, the band reportedly accepted the tour of Bulgaria in order to recover some of the funds they had lost after getting fined by the Yugoslav customs over the attempt to bring undeclared musical equipment into the country. In summer 1985, following a decade of continuous rejection for tours of the Soviet Union by the cultural attaché of the Soviet embassy in Yugoslavia, Bijelo Dugme was finally approved and booked to play in Moscow on 28 July 1985, on the same bill with fellow Yugoslav rock act Bajaga i Instruktori, at a huge open-air concert at Gorky Park as part of the 12th World Festival of Youth and Students. Ahead of the show, Bregović decided to sequester the band in Budva for two weeks in order to rehearse for the Moscow show, an indication of the seriousness with which they approached this particular concert. However, once in Moscow, due to overcrowding at Gorky Park and resulting safety concerns, the event was interrupted around 10 p.m. after the Bajaga i Instruktori set before Bijelo Dugme even had a chance to take the stage. Two days later on 30 July 1985, instead at the marquee Gorky Park in central Moscow, Bijelo Dugme got to play the Dynamo Arena on the city outskirts at an unpopular noon-hour time slot. In between Bijelo Dugme's studio releases and tours, in-demand Bregović worked on various side projects in Yugoslavia. These included releasing a solo record in 1976 and composing two movie soundtracks—1977's Leptirov oblak and 1979's Lične stvari. He also tried his hand at music production, producing Idoli's 1980 seven-inch single "Maljčiki" / "Retko te viđam sa devojkama" and co-producing, alongside Kornelije Kovač, Zdravko Čolić's fourth studio album Malo pojačaj radio in 1981. Bregović furthermore made guest appearances on guitar on various studio recordings by different Yugoslav pop, folk, and rock acts: Neda Ukraden's track "Tri djevojke" (together with Bijelo Dugme bandmates Vlado Pravdić and Zoran Redžić) off her 1976 album Ko me to od nekud doziva, Hanka Paldum's track "Zbog tebe" off her 1980 album Čežnja, "Ne da/ne nego i/ili" track by Kozmetika off their 1983 eponymous album, Valentino's track "Pazi na ritam" off their 1983 debut album ValentiNo1, Riblja Čorba's track "Disko mišić" off their 1985 album Istina, Merlin's 1986 album Teško meni sa tobom (a još teže bez tebe), Mjesečari track "Gdje izlaziš ovih dana" off their 1988 album One šetaju od 1 do 2, and Piloti track "Tiho, tiho" off their 1990 album Nek te Bog čuva za mene. During his time leading Bijelo Dugme, Bregović also became involved in the financial and organizational side of the music business. In 1984, dissatisfied with their respective financial terms at the state-owned Jugoton label, Bijelo Dugme bandleader Bregović and one of Yugoslavia's biggest pop stars Zdravko Čolić got together to establish their own music label Kamarad, which—via a deal with state-owned Diskoton and later another newly-established private label Komuna—would end up co-releasing all of Bijelo Dugme's subsequent studio albums including three of Čolić's studio albums from 1984 until 1990. Considered an unusual move at the time in a communist country with nearly across-the-board public ownership that had just recently began allowing certain modes of private entrepreneurship, starting a privately-owned record label—combined with Bregović's and Čolić's high public profile in Yugoslavia—got them both a lot of additional attention in the country's press. The company was registered in Radomlje near Domžale in SR Slovenia. Due to not having its own production facilities and distribution network, the new label entered into a co-releasing agreement with Diskoton thus essentially functioning as the legal entity that holds the licensing rights to the works of Bijelo Dugme and Zdravko Čolić. Kamarad's debut co-release was Čolić's 1984 studio album Ti si mi u krvi followed by Bijelo Dugme's self-titled studio album later that year with new vocalist Mladen "Tifa" Vojičić. The label would also co-release many of Dugme's and Čolić's later 'best of' compilations in addition to Bregović's movie soundtrack albums as well as Vesna Zmijanac's 1992 album Ako me umiriš sad. During the late 1980s, a period that would turn out to be the final years of Bijelo Dugme, Bregović entered the world of film music. His first project was Emir Kusturica's Time of the Gypsies (1989) and it turned out to be a great success (both the film and the soundtrack). Bregović's collaboration with Kusturica continued as the musician composed the soundtrack (which was performed by Iggy Pop) for Kusturica's next film Arizona Dream (1993). During the Bosnian War, Bregović relocated to Paris, but also lived in Belgrade. His next major project, music for Patrice Chéreau's Queen Margot was a great success as well, and as a result, the film won two awards on the 1994 Cannes Film Festival. The next year's Golden Palm award went to Underground, for which Goran Bregović composed the music. In 1997, he worked with Turkish singer Sezen Aksu on her album Düğün ve Cenaze (Wedding and Funeral). After that album, he continued making composite albums with other musicians that were based on his music and singers' lyrics. He made an album with George Dalaras in 1999 named Thessaloniki – Yannena with Two Canvas Shoes. In the same year, Bregović recorded an album called Kayah i Bregović (Kayah and Bregović) with popular Polish singer Kayah which sold over 700,000 copies in Poland (seven times platinum record). In 2001, he recorded another album with another Polish singer, Krzysztof Krawczyk, titled "Daj mi drugie życie" ("Give Me Second Life"). In 2005, Bregović took part in three large farewell concerts of Bijelo Dugme. A number of works created by Bregović can be heard on the soundtrack to the 2006 film Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan, most notably "Đurđevdan". The film itself actually features more Bregović samples than the soundtrack. Two musical numbers by Bregović, "Ne Siam Kurve Tuke Sijam Prostitutke," and "Gas, Gas" were featured in the soundtrack of the 2012 Brazilian telenovela, Salve Jorge, on the television network Rede Globo. For many years Bregović performed with a large ensemble of musicians: a brass band, bagpipes, a string ensemble, a tuxedo-clad all-male choir from Belgrade, women wearing traditional Bulgarian costumes, and Roma singers make up his 40-piece band and orchestra. Since 1998, and until about 2012, Bregović has been performing his music mainly in the form of concerts all over the world with his Wedding and Funeral Orchestra. This consists of 10 people (in the small version) or 37 (in the large version, although, in some instances, this number varies, depending on participants from the host country). Since 2012 the orchestra consists of 9 people (in the small version) or 19 (in the large version), as it played in New York at the Lincoln Center on 15 and 16 July 2016. The small orchestra consists of Muharem "Muki" Rexhepi (vocals, drums), Bokan Stanković (first trumpet), Dragić Velićović (second trumpet), Stojan Dimov (sax, clarinet), Aleksandar Rajković (first trombone, glockenspiel), Miloš Mihajlović (second trombone), female vocals Bulgarian singers Daniela Radkova-Aleksandrova and Ljudmila Radkova-Trajkova, and Goran himself. The large orchestra includes also string quartet: Ivana Mateijć (first violin), Bojana Jovanović-Jotić (second violin), Saša Mirković (viola), and Tatjana Jovanović-Mirković, as well as sextet of male voices: Dejan Pesić (first tenor), Milan Panić and Ranko Jović (second tenors), Aleksandar Novaković (baritone), Dušan Ljubinković and Siniša Dutina (basses). In previous years, in the orchestra the following musicians have performed: Ogi Radivojević and Alen Ademović (vocals, drums), Dalibor Lukić (second trumpet), Dejan Manigodić (tuba), Vaska Jankovska (vocals). In 2013, as part of his Asia-Pacific tour (including Australia, New Zealand, and Hong Kong), Bregović performed with a string quartet, a male choir, Bulgarian singers and half of a brass band. The other part of the brass band – including bass and percussions – were being played from his computer. In 2017, he was a guest artist on Puerto Rican rapper Residente's album Residente on the song "El Futuro Es Nuestro" (Spanish for "The Future is Ours"). During the Eurovision 2008 final in Belgrade Arena, Serbia, he played as the interval act. He also composed the Serbian entry for the Eurovision Song Contest 2010; 'Ovo Je Balkan' sung by Milan Stanković. Bregović's compositions, extending Balkan musical inspirations to innovative extremes, draw upon European classicism and Balkan rhythms. Bregović's music carries: Yugoslav, Bulgarian, Romani, Greek, Romanian, Albanian, Italian, Turkish and Polish themes and is a fusion of popular music, with traditional polyphonic music from the Balkans, tango and brass bands. During the early 1970s, Bregović's first child, daughter Željka, was born out of wedlock from a brief relationship with a Sarajevo-based dancer named Jasenka. Željka lives in Austria where she gave birth to Goran's granddaughter, Bianca. With Bijelo Dugme's mid-1970s breakout commercial success and Bregović's increased public profile in Yugoslavia, details of his lifestyle and romantic relationships also became fodder for the country's press. Throughout the late 1970s and early 1980s, various Yugoslav print media outlets documented his high-profile relationship with Serbian model Ljiljana Tica who reportedly inspired his song "Bitanga i princeza" off Bijelo Dugme's eponymous 1979 album. In 1993, Bregović married his long-time girlfriend Dženana Sudžuka, a Bosniak model. The wedding ceremony held in Paris featured film director Emir Kusturica as the groom's best man and longtime Bijelo Dugme backing vocal Amila Sulejmanović as the bride's maid of honour. The couple has three daughters: Ema (born in March 1995), Una (February 2002), and Lulu (May 2004). On 12 June 2008, fifty-eight-year-old Bregović sustained a spinal injury in Belgrade, breaking vertebrae by falling four meters from a cherry tree in the garden of his Senjak home. After being assessed by doctors, his condition was stated to be "stable without neurological complications." Following surgery, he made a quick recovery and, within a month on 8 and 9 July, held two big concerts in New York City, proving for more than two hours each night his performance skills had not suffered from the accident. Bregović's siblings, brother Predrag and sister Dajana, live in New York City and Split, respectively. It's not accidental that both Bebek and I are members of the Communist League. Being a communist means being politically active and organized. It really gets on my nerves when I hear someone say: 'I feel like a communist, but I'm not a member [of the party]'. A politically inactive communist is not a communist. Only a politically organized communist is a real communist. -Bregović in December 1976 on his political activity. In 1971, twenty-one-year-old Bregović—a student at the University of Sarajevo's Faculty of Philosophy—got accepted into the Yugoslav Communist League (SKJ), the only party in SFR Yugoslavia's political system. Throughout the mid-to-late 1970s, by now a famous rock musician in SFR Yugoslavia, Bregović often publicly expressed personal support for the communist ideology while underscoring importance of being active in the party. In 1990—with the dissolution of the SKJ and reinstatement of multi-party political system in Yugoslavia—Bregović expressed public support for Ante Marković's Union of Reform Forces of Yugoslavia (SRSJ), a centre-left social-democrat political party opposing ethnic nationalism and advocating for reform of Yugoslav communism into liberal market capitalism. Furthermore, he actively participated in the party's election campaign ahead of the general elections in the SR Bosnia and Herzegovina constituent unit of SFR Yugoslavia, lending his celebrity and contributing to the campaign in creative capacity. Despite securing public support, endorsements, and even active campaign participation from many prominent public figures in SR Bosnia and Herzegovina such as Emir Kusturica, Nele Karajlić, Branko Đurić, etc., the party got only 8.9% of the total vote. On 2 April 1999—a week into the NATO bombing of Yugoslavia—alongside Greek performers George Dalaras, Stavros Kouyioumtzis, and Alkistis Protopsalti as well as a number of others from different parts of the Balkans, Bregović played at an anti-war open-air concert at Thessaloniki's Aristotelous Square. In the years following the Yugoslav Wars and breakup of Yugoslavia, Bregović has described himself as Yugonostalgic. In 2009, he stated: "Yugoslavia is the intersection of so many worlds: Orthodox, Catholic, Muslim. With music, I don't have to represent anyone, except myself – because I speak the first language of the world, the one everyone understands: music." Bregović owns real estate all over the world, but divides most of his time between Belgrade where he does most of his musical recording work and Paris where his spouse lives with their three daughters. He reportedly owns properties in Paris, Istanbul, Belgrade, Zagreb, on Mount Jahorina, and Perast, many of which are used for commercial purposes such as touristic rentals, studio recording, and filming locations. In Belgrade, Bregović owns multiple properties in the upscale Senjak neighbourhood. Some of his Belgrade properties in the neighbourhoods of Senjak and Dedinje were leased out as shooting locations for Serbian television series Žene sa Dedinja [sr], Državni službenik [sr], and Klan [sr]. Bregović has frequently been accused of plagiarizing other performers' works as well as republishing his own previously released material as new. In the mid-2000s, French singer-songwriter Enrico Macias reportedly sued Bregović over Bregović's song "In the Deathcar" off the Arizona Dream soundtrack album, claiming it plagiarized Macias' song "Solenzara". Media outlets in the Balkans reported in 2015 that the French court ruled in Macias' favour, ordering Bregović to pay Macias €1 million in damages. In response, via a press release distributed to media outlets throughout the Balkans, Bregović's representative Svetlana Strunić claimed that there never was a plagiarism court process against Bregović in France. In March 2015, Bregović performed in a concert in Crimea, which was annexed by Russia the previous year. The following month, the Life Festival in Oświęcim, Poland canceled an appearance by Bregović, saying that his statements were "contrary to the values cherished by the Life Festival founders." Because of his open support for the Russian president, Vladimir Putin, and for the 2015 performance in Crimea, in August 2023, Bregović was also denied from entering Moldova. He intended to play in a music festival in the country.
[ { "paragraph_id": 0, "text": "Goran Bregović (born 22 March 1950) is a recording artist from Bosnia and Herzegovina. He is one of the most internationally known modern musicians and composers of the Slavic-speaking countries in the Balkans, and is one of the few former Yugoslav musicians who has performed at major international venues such as Carnegie Hall, Royal Albert Hall and L'Olympia.", "title": "" }, { "paragraph_id": 1, "text": "A Sarajevo native, Bregović started out with Kodeksi and Jutro, but rose to prominence as the main creative mind and lead guitarist of Bijelo Dugme, widely considered one of the most popular and influential recording acts ever to exist in the Socialist Federal Republic of Yugoslavia. After Bijelo Dugme split up, he embarked on several critically and commercially successful projects, and started composing film scores. Among his better known film scores are three of Emir Kusturica's films (Time of the Gypsies, Arizona Dream and Underground). For Time of the Gypsies, Bregović won a Golden Arena Award at the Pula Film Festival in 1990, among other awards. He had also composed for the Academy Award-nominated film La Reine Margot and the Cannes-entered film The Serpent's Kiss.", "title": "" }, { "paragraph_id": 2, "text": "Bregović, during his five-decade long career, has composed for critically acclaimed singers, including Sezen Aksu, Kayah, Iggy Pop, Šaban Bajramović, George Dalaras and Cesária Évora.", "title": "" }, { "paragraph_id": 3, "text": "Born in Sarajevo, PR Bosnia-Herzegovina, FPR Yugoslavia to a Croatian father Franjo Bregović and Serbian mother Borka Perišić, Goran grew up with two younger siblings — sister Dajana and brother Predrag. Their father was from the Croatian region of Prigorje, specifically Sveti Petar Čvrstec village near Križevci, while their mother was born in Virovitica to parents that had shortly before her birth arrived in the nearby village of Čemernica, settling there from the village of Kazanci near Gacko in East Herzegovina. Goran's maternal grandfather fought in the Royal Serbian Army at the Salonica front during World War I and as a reward received land in Slavonia where he soon moved his family.", "title": "Early life" }, { "paragraph_id": 4, "text": "Goran's parents met shortly after World War II in Virovitica where his mother Borka lived and his father Franjo (who fought on the Partisan side during the war) attended a Yugoslav People's Army (JNA) military school. Franjo Bregović soon got his first job, teaching ballistics at a military school in Sarajevo, so the couple that at the time moved there. Goran, their first child, was born in 1950 in Sarajevo.", "title": "Early life" }, { "paragraph_id": 5, "text": "Goran was 10 years old when his parents divorced. In later interviews, he mentioned his father's alcoholism as the reason for the breakdown of their marriage. Soon after the split, his father moved to Livno, taking Goran's younger brother Predrag with him while Goran remained living with his mother in Sarajevo, visiting his father and brother every summer in Livno. Their father soon retired and eventually moved back to his home village in Zagorje while Goran's brother Predrag later moved back to Sarajevo for university studies.", "title": "Early life" }, { "paragraph_id": 6, "text": "Goran played violin in a music school. However, deemed untalented, he was thrown out during second grade. His musical education was thus reduced to what his friend taught him until Goran's mother bought him his first guitar in his early teens. Bregović wanted to enroll in a fine arts high school, but his aunt told his mother that it was supposedly full of homosexuals, which precipitated his mother's decision to send him to a technical (traffic) school. As a compromise for not getting his way, she allowed him to grow his hair long.", "title": "Early life" }, { "paragraph_id": 7, "text": "Upon entering high school, teenage Bregović joined the school band Izohipse where he began on bass guitar. Soon, however, he was kicked out of that school too (this time for misbehavior – he crashed into a school-owned Mercedes-Benz). Bregović then entered grammar school and its school band Beštije (again as a bass guitar player). When he was 16, his mother left him and moved to the coast, meaning that other than having a few relatives to rely on, he mostly had to take care of himself. He did that by playing folk music in a kafana in Konjic, working on construction sites, and selling newspapers.", "title": "Early career" }, { "paragraph_id": 8, "text": "Spotting him at a Beštije gig in 1969, Željko Bebek invited eighteen-year-old Bregović to play bass guitar in his band Kodeksi, which Goran gladly accepted.", "title": "Early career" }, { "paragraph_id": 9, "text": "Eventually, Kodeksi shifted setup so Bregović moved from bass to lead guitar, resulting in Kodeksi having the following line-up during summer 1970: Goran Bregović, Željko Bebek, Zoran Redžić and Milić Vukašinović. All of them would eventually become members of Bijelo Dugme at some point in the future. At the time, they were largely influenced by Led Zeppelin and Black Sabbath. During the fall of 1970, this resulted in the departure of Željko Bebek, who (both as rhythm guitar player and singer) got phased out of the band. At the end of the year, Goran's mother and Zoran's brother arrived in Naples and took them back to Sarajevo.", "title": "Early career" }, { "paragraph_id": 10, "text": "Then, in the autumn of 1971, Bregović enrolled at the University of Sarajevo's Faculty of Philosophy, studying philosophy and sociology. He soon quit, however. At the same time, Milić Vukašinović left for London, so Bregović formed a band with Nuno Arnautalić called Jutro (Morning), which Redžić soon joined as well. Over the next few years, the band changed lineups frequently, and on 1 January 1974 modified its name to Bijelo Dugme (\"White Button\").", "title": "Early career" }, { "paragraph_id": 11, "text": "From 1974 until 1989, Bregović played lead guitar and was the main creative force behind Bijelo Dugme (White Button). For years they stood as one of the most popular bands in SFR Yugoslavia. Just as with Jutro previously, he continued as Bijelo Dugme's undisputed leader and decision-maker as well as its public face in the Yugoslav print and electronic media once the band started taking off commercially.", "title": "Bijelo Dugme" }, { "paragraph_id": 12, "text": "Over the band's fifteen-year run, in addition to their enormous popularity at home, led by Bregović, Bijelo Dugme made several attempts at expanding their prominence outside of Yugoslavia. In late 1975, while recording their second album Šta bi dao da si na mom mjestu in London, they additionally recorded an English language track called \"Playing the Part\" (translated version of their Serbo-Croatian track \"Šta bi dao da si na mom mjestu\", itself an uncredited cover of Argent's 1972 track \"I Am the Dance of Ages\") that was packaged as a promo single for English music journalists. Never officially released for mass distribution, the track quickly fell into oblivion.", "title": "Bijelo Dugme" }, { "paragraph_id": 13, "text": "Bijelo Dugme had somewhat better luck with touring abroad, which almost entirely took place in the Eastern Bloc countries as part of their respective cultural exchange programs with SFR Yugoslavia. The band briefly toured the Polish People's Republic during April 1977, a 9-concert leg as part of the tour in support of their third album Eto! Baš hoću!. During their 10-day Polish tour, the band played two concerts on back-to-back nights in Warsaw, followed by Olsztyn, Zielona Góra, three shows on back-to-back days in Poznań, and finally two shows on the same day in Kalisz. While in Poland, they also shot a 30-minute television special for TVP3 Katowice, a regional Katowice-based branch of the state-owned Telewizja Polska. Later that year, following the tour's culmination at a triumphant open-air concert at Hajdučka Česma in Belgrade, Bregović went to serve his mandatory Yugoslav People's Army (JNA) stint. Assigned to a Niš-based unit, the twenty-seven-year-old reported for service on 3 November 1977 and would spend the following year away from music, a period during which the band was also on hiatus.", "title": "Bijelo Dugme" }, { "paragraph_id": 14, "text": "During early 1982, as part of an event bringing together past and future Winter Olympic hosts, the band played in Innsbruck, Austria as representatives of the city of Sarajevo and SFR Yugoslavia, the site of the upcoming Winter Olympics. On return to Yugoslavia from Innsbruck, the band had its baggage confiscated by the Yugoslav customs after undeclared musical equipment was found among their luggage. Some six months later, during summer 1982, Bijelo Dugme went on an impromptu tour of the People's Republic of Bulgaria, playing 41 shows throughout the country from 15 July until 31 August 1982. Despite the tour in support of their latest studio album Doživjeti stotu being over for more than a year, and having no new material to promote, the band reportedly accepted the tour of Bulgaria in order to recover some of the funds they had lost after getting fined by the Yugoslav customs over the attempt to bring undeclared musical equipment into the country.", "title": "Bijelo Dugme" }, { "paragraph_id": 15, "text": "In summer 1985, following a decade of continuous rejection for tours of the Soviet Union by the cultural attaché of the Soviet embassy in Yugoslavia, Bijelo Dugme was finally approved and booked to play in Moscow on 28 July 1985, on the same bill with fellow Yugoslav rock act Bajaga i Instruktori, at a huge open-air concert at Gorky Park as part of the 12th World Festival of Youth and Students. Ahead of the show, Bregović decided to sequester the band in Budva for two weeks in order to rehearse for the Moscow show, an indication of the seriousness with which they approached this particular concert. However, once in Moscow, due to overcrowding at Gorky Park and resulting safety concerns, the event was interrupted around 10 p.m. after the Bajaga i Instruktori set before Bijelo Dugme even had a chance to take the stage. Two days later on 30 July 1985, instead at the marquee Gorky Park in central Moscow, Bijelo Dugme got to play the Dynamo Arena on the city outskirts at an unpopular noon-hour time slot.", "title": "Bijelo Dugme" }, { "paragraph_id": 16, "text": "In between Bijelo Dugme's studio releases and tours, in-demand Bregović worked on various side projects in Yugoslavia. These included releasing a solo record in 1976 and composing two movie soundtracks—1977's Leptirov oblak and 1979's Lične stvari.", "title": "Bijelo Dugme" }, { "paragraph_id": 17, "text": "He also tried his hand at music production, producing Idoli's 1980 seven-inch single \"Maljčiki\" / \"Retko te viđam sa devojkama\" and co-producing, alongside Kornelije Kovač, Zdravko Čolić's fourth studio album Malo pojačaj radio in 1981.", "title": "Bijelo Dugme" }, { "paragraph_id": 18, "text": "Bregović furthermore made guest appearances on guitar on various studio recordings by different Yugoslav pop, folk, and rock acts: Neda Ukraden's track \"Tri djevojke\" (together with Bijelo Dugme bandmates Vlado Pravdić and Zoran Redžić) off her 1976 album Ko me to od nekud doziva, Hanka Paldum's track \"Zbog tebe\" off her 1980 album Čežnja, \"Ne da/ne nego i/ili\" track by Kozmetika off their 1983 eponymous album, Valentino's track \"Pazi na ritam\" off their 1983 debut album ValentiNo1, Riblja Čorba's track \"Disko mišić\" off their 1985 album Istina, Merlin's 1986 album Teško meni sa tobom (a još teže bez tebe), Mjesečari track \"Gdje izlaziš ovih dana\" off their 1988 album One šetaju od 1 do 2, and Piloti track \"Tiho, tiho\" off their 1990 album Nek te Bog čuva za mene.", "title": "Bijelo Dugme" }, { "paragraph_id": 19, "text": "During his time leading Bijelo Dugme, Bregović also became involved in the financial and organizational side of the music business. In 1984, dissatisfied with their respective financial terms at the state-owned Jugoton label, Bijelo Dugme bandleader Bregović and one of Yugoslavia's biggest pop stars Zdravko Čolić got together to establish their own music label Kamarad, which—via a deal with state-owned Diskoton and later another newly-established private label Komuna—would end up co-releasing all of Bijelo Dugme's subsequent studio albums including three of Čolić's studio albums from 1984 until 1990. Considered an unusual move at the time in a communist country with nearly across-the-board public ownership that had just recently began allowing certain modes of private entrepreneurship, starting a privately-owned record label—combined with Bregović's and Čolić's high public profile in Yugoslavia—got them both a lot of additional attention in the country's press. The company was registered in Radomlje near Domžale in SR Slovenia. Due to not having its own production facilities and distribution network, the new label entered into a co-releasing agreement with Diskoton thus essentially functioning as the legal entity that holds the licensing rights to the works of Bijelo Dugme and Zdravko Čolić. Kamarad's debut co-release was Čolić's 1984 studio album Ti si mi u krvi followed by Bijelo Dugme's self-titled studio album later that year with new vocalist Mladen \"Tifa\" Vojičić. The label would also co-release many of Dugme's and Čolić's later 'best of' compilations in addition to Bregović's movie soundtrack albums as well as Vesna Zmijanac's 1992 album Ako me umiriš sad.", "title": "Bijelo Dugme" }, { "paragraph_id": 20, "text": "During the late 1980s, a period that would turn out to be the final years of Bijelo Dugme, Bregović entered the world of film music. His first project was Emir Kusturica's Time of the Gypsies (1989) and it turned out to be a great success (both the film and the soundtrack). Bregović's collaboration with Kusturica continued as the musician composed the soundtrack (which was performed by Iggy Pop) for Kusturica's next film Arizona Dream (1993). During the Bosnian War, Bregović relocated to Paris, but also lived in Belgrade. His next major project, music for Patrice Chéreau's Queen Margot was a great success as well, and as a result, the film won two awards on the 1994 Cannes Film Festival. The next year's Golden Palm award went to Underground, for which Goran Bregović composed the music.", "title": "Solo career" }, { "paragraph_id": 21, "text": "In 1997, he worked with Turkish singer Sezen Aksu on her album Düğün ve Cenaze (Wedding and Funeral). After that album, he continued making composite albums with other musicians that were based on his music and singers' lyrics.", "title": "Solo career" }, { "paragraph_id": 22, "text": "He made an album with George Dalaras in 1999 named Thessaloniki – Yannena with Two Canvas Shoes. In the same year, Bregović recorded an album called Kayah i Bregović (Kayah and Bregović) with popular Polish singer Kayah which sold over 700,000 copies in Poland (seven times platinum record).", "title": "Solo career" }, { "paragraph_id": 23, "text": "In 2001, he recorded another album with another Polish singer, Krzysztof Krawczyk, titled \"Daj mi drugie życie\" (\"Give Me Second Life\").", "title": "Solo career" }, { "paragraph_id": 24, "text": "In 2005, Bregović took part in three large farewell concerts of Bijelo Dugme.", "title": "Solo career" }, { "paragraph_id": 25, "text": "A number of works created by Bregović can be heard on the soundtrack to the 2006 film Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan, most notably \"Đurđevdan\". The film itself actually features more Bregović samples than the soundtrack.", "title": "Solo career" }, { "paragraph_id": 26, "text": "Two musical numbers by Bregović, \"Ne Siam Kurve Tuke Sijam Prostitutke,\" and \"Gas, Gas\" were featured in the soundtrack of the 2012 Brazilian telenovela, Salve Jorge, on the television network Rede Globo.", "title": "Solo career" }, { "paragraph_id": 27, "text": "For many years Bregović performed with a large ensemble of musicians: a brass band, bagpipes, a string ensemble, a tuxedo-clad all-male choir from Belgrade, women wearing traditional Bulgarian costumes, and Roma singers make up his 40-piece band and orchestra.", "title": "Solo career" }, { "paragraph_id": 28, "text": "Since 1998, and until about 2012, Bregović has been performing his music mainly in the form of concerts all over the world with his Wedding and Funeral Orchestra. This consists of 10 people (in the small version) or 37 (in the large version, although, in some instances, this number varies, depending on participants from the host country).", "title": "Solo career" }, { "paragraph_id": 29, "text": "Since 2012 the orchestra consists of 9 people (in the small version) or 19 (in the large version), as it played in New York at the Lincoln Center on 15 and 16 July 2016.", "title": "Solo career" }, { "paragraph_id": 30, "text": "The small orchestra consists of Muharem \"Muki\" Rexhepi (vocals, drums), Bokan Stanković (first trumpet), Dragić Velićović (second trumpet), Stojan Dimov (sax, clarinet), Aleksandar Rajković (first trombone, glockenspiel), Miloš Mihajlović (second trombone), female vocals Bulgarian singers Daniela Radkova-Aleksandrova and Ljudmila Radkova-Trajkova, and Goran himself. The large orchestra includes also string quartet: Ivana Mateijć (first violin), Bojana Jovanović-Jotić (second violin), Saša Mirković (viola), and Tatjana Jovanović-Mirković, as well as sextet of male voices: Dejan Pesić (first tenor), Milan Panić and Ranko Jović (second tenors), Aleksandar Novaković (baritone), Dušan Ljubinković and Siniša Dutina (basses).", "title": "Solo career" }, { "paragraph_id": 31, "text": "In previous years, in the orchestra the following musicians have performed: Ogi Radivojević and Alen Ademović (vocals, drums), Dalibor Lukić (second trumpet), Dejan Manigodić (tuba), Vaska Jankovska (vocals).", "title": "Solo career" }, { "paragraph_id": 32, "text": "In 2013, as part of his Asia-Pacific tour (including Australia, New Zealand, and Hong Kong), Bregović performed with a string quartet, a male choir, Bulgarian singers and half of a brass band. The other part of the brass band – including bass and percussions – were being played from his computer. In 2017, he was a guest artist on Puerto Rican rapper Residente's album Residente on the song \"El Futuro Es Nuestro\" (Spanish for \"The Future is Ours\").", "title": "Solo career" }, { "paragraph_id": 33, "text": "During the Eurovision 2008 final in Belgrade Arena, Serbia, he played as the interval act. He also composed the Serbian entry for the Eurovision Song Contest 2010; 'Ovo Je Balkan' sung by Milan Stanković.", "title": "Solo career" }, { "paragraph_id": 34, "text": "Bregović's compositions, extending Balkan musical inspirations to innovative extremes, draw upon European classicism and Balkan rhythms.", "title": "Musical style" }, { "paragraph_id": 35, "text": "Bregović's music carries: Yugoslav, Bulgarian, Romani, Greek, Romanian, Albanian, Italian, Turkish and Polish themes and is a fusion of popular music, with traditional polyphonic music from the Balkans, tango and brass bands.", "title": "Musical style" }, { "paragraph_id": 36, "text": "During the early 1970s, Bregović's first child, daughter Željka, was born out of wedlock from a brief relationship with a Sarajevo-based dancer named Jasenka. Željka lives in Austria where she gave birth to Goran's granddaughter, Bianca.", "title": "Personal life" }, { "paragraph_id": 37, "text": "With Bijelo Dugme's mid-1970s breakout commercial success and Bregović's increased public profile in Yugoslavia, details of his lifestyle and romantic relationships also became fodder for the country's press. Throughout the late 1970s and early 1980s, various Yugoslav print media outlets documented his high-profile relationship with Serbian model Ljiljana Tica who reportedly inspired his song \"Bitanga i princeza\" off Bijelo Dugme's eponymous 1979 album.", "title": "Personal life" }, { "paragraph_id": 38, "text": "In 1993, Bregović married his long-time girlfriend Dženana Sudžuka, a Bosniak model. The wedding ceremony held in Paris featured film director Emir Kusturica as the groom's best man and longtime Bijelo Dugme backing vocal Amila Sulejmanović as the bride's maid of honour.", "title": "Personal life" }, { "paragraph_id": 39, "text": "The couple has three daughters: Ema (born in March 1995), Una (February 2002), and Lulu (May 2004).", "title": "Personal life" }, { "paragraph_id": 40, "text": "On 12 June 2008, fifty-eight-year-old Bregović sustained a spinal injury in Belgrade, breaking vertebrae by falling four meters from a cherry tree in the garden of his Senjak home. After being assessed by doctors, his condition was stated to be \"stable without neurological complications.\" Following surgery, he made a quick recovery and, within a month on 8 and 9 July, held two big concerts in New York City, proving for more than two hours each night his performance skills had not suffered from the accident.", "title": "Personal life" }, { "paragraph_id": 41, "text": "Bregović's siblings, brother Predrag and sister Dajana, live in New York City and Split, respectively.", "title": "Personal life" }, { "paragraph_id": 42, "text": "It's not accidental that both Bebek and I are members of the Communist League. Being a communist means being politically active and organized. It really gets on my nerves when I hear someone say: 'I feel like a communist, but I'm not a member [of the party]'. A politically inactive communist is not a communist. Only a politically organized communist is a real communist.", "title": "Personal life" }, { "paragraph_id": 43, "text": "-Bregović in December 1976 on his political activity.", "title": "Personal life" }, { "paragraph_id": 44, "text": "In 1971, twenty-one-year-old Bregović—a student at the University of Sarajevo's Faculty of Philosophy—got accepted into the Yugoslav Communist League (SKJ), the only party in SFR Yugoslavia's political system.", "title": "Personal life" }, { "paragraph_id": 45, "text": "Throughout the mid-to-late 1970s, by now a famous rock musician in SFR Yugoslavia, Bregović often publicly expressed personal support for the communist ideology while underscoring importance of being active in the party.", "title": "Personal life" }, { "paragraph_id": 46, "text": "In 1990—with the dissolution of the SKJ and reinstatement of multi-party political system in Yugoslavia—Bregović expressed public support for Ante Marković's Union of Reform Forces of Yugoslavia (SRSJ), a centre-left social-democrat political party opposing ethnic nationalism and advocating for reform of Yugoslav communism into liberal market capitalism. Furthermore, he actively participated in the party's election campaign ahead of the general elections in the SR Bosnia and Herzegovina constituent unit of SFR Yugoslavia, lending his celebrity and contributing to the campaign in creative capacity. Despite securing public support, endorsements, and even active campaign participation from many prominent public figures in SR Bosnia and Herzegovina such as Emir Kusturica, Nele Karajlić, Branko Đurić, etc., the party got only 8.9% of the total vote.", "title": "Personal life" }, { "paragraph_id": 47, "text": "On 2 April 1999—a week into the NATO bombing of Yugoslavia—alongside Greek performers George Dalaras, Stavros Kouyioumtzis, and Alkistis Protopsalti as well as a number of others from different parts of the Balkans, Bregović played at an anti-war open-air concert at Thessaloniki's Aristotelous Square.", "title": "Personal life" }, { "paragraph_id": 48, "text": "In the years following the Yugoslav Wars and breakup of Yugoslavia, Bregović has described himself as Yugonostalgic. In 2009, he stated: \"Yugoslavia is the intersection of so many worlds: Orthodox, Catholic, Muslim. With music, I don't have to represent anyone, except myself – because I speak the first language of the world, the one everyone understands: music.\"", "title": "Personal life" }, { "paragraph_id": 49, "text": "Bregović owns real estate all over the world, but divides most of his time between Belgrade where he does most of his musical recording work and Paris where his spouse lives with their three daughters.", "title": "Personal life" }, { "paragraph_id": 50, "text": "He reportedly owns properties in Paris, Istanbul, Belgrade, Zagreb, on Mount Jahorina, and Perast, many of which are used for commercial purposes such as touristic rentals, studio recording, and filming locations.", "title": "Personal life" }, { "paragraph_id": 51, "text": "In Belgrade, Bregović owns multiple properties in the upscale Senjak neighbourhood. Some of his Belgrade properties in the neighbourhoods of Senjak and Dedinje were leased out as shooting locations for Serbian television series Žene sa Dedinja [sr], Državni službenik [sr], and Klan [sr].", "title": "Personal life" }, { "paragraph_id": 52, "text": "Bregović has frequently been accused of plagiarizing other performers' works as well as republishing his own previously released material as new.", "title": "Controversy" }, { "paragraph_id": 53, "text": "In the mid-2000s, French singer-songwriter Enrico Macias reportedly sued Bregović over Bregović's song \"In the Deathcar\" off the Arizona Dream soundtrack album, claiming it plagiarized Macias' song \"Solenzara\". Media outlets in the Balkans reported in 2015 that the French court ruled in Macias' favour, ordering Bregović to pay Macias €1 million in damages.", "title": "Controversy" }, { "paragraph_id": 54, "text": "In response, via a press release distributed to media outlets throughout the Balkans, Bregović's representative Svetlana Strunić claimed that there never was a plagiarism court process against Bregović in France.", "title": "Controversy" }, { "paragraph_id": 55, "text": "In March 2015, Bregović performed in a concert in Crimea, which was annexed by Russia the previous year. The following month, the Life Festival in Oświęcim, Poland canceled an appearance by Bregović, saying that his statements were \"contrary to the values cherished by the Life Festival founders.\"", "title": "Controversy" }, { "paragraph_id": 56, "text": "Because of his open support for the Russian president, Vladimir Putin, and for the 2015 performance in Crimea, in August 2023, Bregović was also denied from entering Moldova. He intended to play in a music festival in the country.", "title": "Controversy" } ]
Goran Bregović is a recording artist from Bosnia and Herzegovina. He is one of the most internationally known modern musicians and composers of the Slavic-speaking countries in the Balkans, and is one of the few former Yugoslav musicians who has performed at major international venues such as Carnegie Hall, Royal Albert Hall and L'Olympia. A Sarajevo native, Bregović started out with Kodeksi and Jutro, but rose to prominence as the main creative mind and lead guitarist of Bijelo Dugme, widely considered one of the most popular and influential recording acts ever to exist in the Socialist Federal Republic of Yugoslavia. After Bijelo Dugme split up, he embarked on several critically and commercially successful projects, and started composing film scores. Among his better known film scores are three of Emir Kusturica's films. For Time of the Gypsies, Bregović won a Golden Arena Award at the Pula Film Festival in 1990, among other awards. He had also composed for the Academy Award-nominated film La Reine Margot and the Cannes-entered film The Serpent's Kiss. Bregović, during his five-decade long career, has composed for critically acclaimed singers, including Sezen Aksu, Kayah, Iggy Pop, Šaban Bajramović, George Dalaras and Cesária Évora.
2002-02-05T03:33:07Z
2023-10-17T17:09:32Z
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https://en.wikipedia.org/wiki/Goran_Bregovi%C4%87
12,312
Gestation
Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregnancy can have one or more gestations at the same time, for example in a multiple birth. The time interval of a gestation is called the gestation period. In obstetrics, gestational age refers to the time since the onset of the last menses, which on average is fertilization age plus two weeks. In mammals, pregnancy begins when a zygote (fertilized ovum) implants in the female's uterus and ends once the fetus leaves the uterus during labor or an abortion (whether induced or spontaneous). In humans, pregnancy can be defined clinically or biochemically. Clinically, pregnancy starts from first day of the mother's last period. Biochemically, pregnancy starts when a woman's human chorionic gonadotropin (hCG) levels rise above 25 mIU/mL. Human pregnancy can be divided into three trimesters, each approximately three months long: the first, second, and third trimester. The first trimester is from the last menstrual period through the 13th week, the second trimester is 14th–28/29th week, and the third trimester is 29/30th–42nd week. Birth normally occurs at a gestational age of about 40 weeks, though it is common for births to occur from 37 to 42 weeks. Labor occurring prior to 37 weeks gestation is considered preterm labor and can result from multiple factors, including previous preterm deliveries. Prenatal care is important for the maintenance of a healthy pregnancy and surveillance of related complications. In high-income countries, prenatal care typically involves monthly visits during the first two trimesters, with an increasing number of visits closer to delivery. At these visits, healthcare providers will evaluate a variety of parental and fetal metrics, including fetal growth and heart rate, birth defects, maternal blood pressure, among others. After birth, health care providers will measure the baby's weight, vital signs, reflexes, head circumference, muscle tone, and posture to help determine the gestational age. Various factors can influence the duration of gestation, including diseases in pregnancy and adequate prenatal care. The rates of morbidity and pre-existing diseases that predispose mothers to life-threatening, pregnancy-related complications in the United States are increasing. The brunt of this burden is experienced by non-Hispanic Black women. Inaccessibility of prenatal care may partially explain this ongoing disparity. Other factors that affect prenatal care utilization include socioeconomic status, insurance status, childcare, social support, housing, and immigration status. In viviparous animals, the embryo develops inside the body of the mother, as opposed to outside in an egg (oviparity). The mother then gives live birth. The less developed form of viviparity is called ovoviviparity, in which the mother carries embryos inside eggs. Most vipers exhibit ovoviviparity. The more developed form of viviparity is called placental viviparity; mammals are the best example, but it has also evolved independently in other animals, such as in scorpions, some sharks, and in velvet worms. Viviparous offspring live independently and require an external food supply from birth. Certain lizards also employ this method such as the genera Tiliqua and Corucia. The placenta is attached directly to the mother in these lizards which is called viviparous matrotrophy. Ovoviviparous animals develop within eggs that remain within the mother's body up until they hatch or are about to hatch. It is similar to viviparity in that the embryo develops within the mother's body. Unlike the embryos of viviparous species, ovoviviparous embryos are nourished by the egg yolk rather than by the mother's body. However, the mother's body does provide gas exchange. The young of ovoviviparous amphibians are sometimes born as larvae, and undergo metamorphosis outside the body of the mother. The fish family Syngnathidae has the unique characteristic whereby females lay their eggs in a brood pouch on the male's chest, and the male incubates the eggs. Fertilization may take place in the pouch or before implantation in the water. Included in Syngnathidae are seahorses, the pipefish, and the weedy and leafy sea dragons. Syngnathidae is the only family in the animal kingdom to which the term "male pregnancy" has been applied.
[ { "paragraph_id": 0, "text": "Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregnancy can have one or more gestations at the same time, for example in a multiple birth.", "title": "" }, { "paragraph_id": 1, "text": "The time interval of a gestation is called the gestation period. In obstetrics, gestational age refers to the time since the onset of the last menses, which on average is fertilization age plus two weeks.", "title": "" }, { "paragraph_id": 2, "text": "In mammals, pregnancy begins when a zygote (fertilized ovum) implants in the female's uterus and ends once the fetus leaves the uterus during labor or an abortion (whether induced or spontaneous).", "title": "Mammals" }, { "paragraph_id": 3, "text": "In humans, pregnancy can be defined clinically or biochemically. Clinically, pregnancy starts from first day of the mother's last period. Biochemically, pregnancy starts when a woman's human chorionic gonadotropin (hCG) levels rise above 25 mIU/mL.", "title": "Mammals" }, { "paragraph_id": 4, "text": "Human pregnancy can be divided into three trimesters, each approximately three months long: the first, second, and third trimester. The first trimester is from the last menstrual period through the 13th week, the second trimester is 14th–28/29th week, and the third trimester is 29/30th–42nd week. Birth normally occurs at a gestational age of about 40 weeks, though it is common for births to occur from 37 to 42 weeks. Labor occurring prior to 37 weeks gestation is considered preterm labor and can result from multiple factors, including previous preterm deliveries.", "title": "Mammals" }, { "paragraph_id": 5, "text": "Prenatal care is important for the maintenance of a healthy pregnancy and surveillance of related complications. In high-income countries, prenatal care typically involves monthly visits during the first two trimesters, with an increasing number of visits closer to delivery. At these visits, healthcare providers will evaluate a variety of parental and fetal metrics, including fetal growth and heart rate, birth defects, maternal blood pressure, among others.", "title": "Mammals" }, { "paragraph_id": 6, "text": "After birth, health care providers will measure the baby's weight, vital signs, reflexes, head circumference, muscle tone, and posture to help determine the gestational age.", "title": "Mammals" }, { "paragraph_id": 7, "text": "Various factors can influence the duration of gestation, including diseases in pregnancy and adequate prenatal care. The rates of morbidity and pre-existing diseases that predispose mothers to life-threatening, pregnancy-related complications in the United States are increasing. The brunt of this burden is experienced by non-Hispanic Black women. Inaccessibility of prenatal care may partially explain this ongoing disparity. Other factors that affect prenatal care utilization include socioeconomic status, insurance status, childcare, social support, housing, and immigration status.", "title": "Mammals" }, { "paragraph_id": 8, "text": "In viviparous animals, the embryo develops inside the body of the mother, as opposed to outside in an egg (oviparity). The mother then gives live birth. The less developed form of viviparity is called ovoviviparity, in which the mother carries embryos inside eggs. Most vipers exhibit ovoviviparity. The more developed form of viviparity is called placental viviparity; mammals are the best example, but it has also evolved independently in other animals, such as in scorpions, some sharks, and in velvet worms. Viviparous offspring live independently and require an external food supply from birth. Certain lizards also employ this method such as the genera Tiliqua and Corucia. The placenta is attached directly to the mother in these lizards which is called viviparous matrotrophy.", "title": "Non-mammals" }, { "paragraph_id": 9, "text": "Ovoviviparous animals develop within eggs that remain within the mother's body up until they hatch or are about to hatch. It is similar to viviparity in that the embryo develops within the mother's body. Unlike the embryos of viviparous species, ovoviviparous embryos are nourished by the egg yolk rather than by the mother's body. However, the mother's body does provide gas exchange. The young of ovoviviparous amphibians are sometimes born as larvae, and undergo metamorphosis outside the body of the mother.", "title": "Non-mammals" }, { "paragraph_id": 10, "text": "The fish family Syngnathidae has the unique characteristic whereby females lay their eggs in a brood pouch on the male's chest, and the male incubates the eggs. Fertilization may take place in the pouch or before implantation in the water. Included in Syngnathidae are seahorses, the pipefish, and the weedy and leafy sea dragons. Syngnathidae is the only family in the animal kingdom to which the term \"male pregnancy\" has been applied.", "title": "Non-mammals" } ]
Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals. It is typical for mammals, but also occurs for some non-mammals. Mammals during pregnancy can have one or more gestations at the same time, for example in a multiple birth. The time interval of a gestation is called the gestation period. In obstetrics, gestational age refers to the time since the onset of the last menses, which on average is fertilization age plus two weeks.
2002-02-11T13:40:17Z
2023-12-22T14:02:42Z
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https://en.wikipedia.org/wiki/Gestation
12,316
Gamma function
In mathematics, the gamma function (represented by Γ, the capital letter gamma from the Greek alphabet) is one commonly used extension of the factorial function to complex numbers. The gamma function is defined for all complex numbers except the non-positive integers. For every positive integer n, Derived by Daniel Bernoulli, for complex numbers with a positive real part, the gamma function is defined via a convergent improper integral: The gamma function then is defined as the analytic continuation of this integral function to a meromorphic function that is holomorphic in the whole complex plane except zero and the negative integers, where the function has simple poles. The gamma function has no zeros, so the reciprocal gamma function 1/Γ(z) is an entire function. In fact, the gamma function corresponds to the Mellin transform of the negative exponential function: Other extensions of the factorial function do exist, but the gamma function is the most popular and useful. It is a component in various probability-distribution functions, and as such it is applicable in the fields of probability and statistics, as well as combinatorics. The gamma function can be seen as a solution to the following interpolation problem: A plot of the first few factorials suggests that such a curve can be drawn, but it would be preferable to have a formula that precisely describes the curve. The simple formula for the factorial, x! = 1 × 2 × ⋯ × x, cannot be used directly for non-integer values of x since it is only valid when x is a natural number (or positive integer). There are, relatively speaking, no such simple solutions for factorials; no finite combination of sums, products, powers, exponential functions, or logarithms will suffice to express x!; but it is possible to find a general formula for factorials using tools such as integrals and limits from calculus. A good solution to this is the gamma function. There are infinitely many continuous extensions of the factorial to non-integers: infinitely many curves can be drawn through any set of isolated points. The gamma function is the most useful solution in practice, being analytic (except at the non-positive integers), and it can be defined in several equivalent ways. However, it is not the only analytic function that extends the factorial, as adding to it any analytic function that is zero on the positive integers, such as k sin mπx for an integer m, will give another function with that property. Such a function is known as a pseudogamma function, the most famous being the Hadamard function. A more restrictive property than satisfying the above interpolation is to satisfy the recurrence relation defining a translated version of the factorial function, for any positive real number x. But this would allow for multiplication by any function g(x) satisfying both g(x) = g(x+1) for all real numbers x and g(0) = 1, such as the function g(x) = e. One of several ways to resolve the ambiguity comes from the Bohr–Mollerup theorem. It states that when the condition that f be logarithmically convex (or "super-convex", meaning that ln ∘ f {\displaystyle \ln \circ f} is convex) is added, it uniquely determines f for positive, real inputs. From there, the gamma function can be extended to all real and complex values (except the negative integers and zero) by using the unique analytic continuation of f. The notation Γ ( z ) {\displaystyle \Gamma (z)} is due to Legendre. If the real part of the complex number z is strictly positive ( ℜ ( z ) > 0 {\displaystyle \Re (z)>0} ), then the integral converges absolutely, and is known as the Euler integral of the second kind. (Euler's integral of the first kind is the beta function.) Using integration by parts, one sees that: Recognizing that − t z e − t → 0 {\displaystyle -t^{z}e^{-t}\to 0} as t → ∞ , {\displaystyle t\to \infty ,} We can calculate Γ ( 1 ) {\displaystyle \Gamma (1)} : Thus we can show that Γ ( n ) = ( n − 1 ) ! {\displaystyle \Gamma (n)=(n-1)!} for any positive integer n by induction. Specifically, the base case is that Γ ( 1 ) = 1 = 0 ! {\displaystyle \Gamma (1)=1=0!} , and the induction step is that Γ ( n + 1 ) = n Γ ( n ) = n ( n − 1 ) ! = n ! . {\displaystyle \Gamma (n+1)=n\Gamma (n)=n(n-1)!=n!.} The identity Γ ( z ) = Γ ( z + 1 ) z {\textstyle \Gamma (z)={\frac {\Gamma (z+1)}{z}}} can be used (or, yielding the same result, analytic continuation can be used) to uniquely extend the integral formulation for Γ ( z ) {\displaystyle \Gamma (z)} to a meromorphic function defined for all complex numbers z, except integers less than or equal to zero. It is this extended version that is commonly referred to as the gamma function. There are many equivalent definitions. For a fixed integer m {\displaystyle m} , as the integer n {\displaystyle n} increases, we have that If m {\displaystyle m} is not an integer then it is not possible to say whether this equation is true because we have not yet (in this section) defined the factorial function for non-integers. However, we do get a unique extension of the factorial function to the non-integers by insisting that this equation continue to hold when the arbitrary integer m {\displaystyle m} is replaced by an arbitrary complex number z {\displaystyle z} , Multiplying both sides by ( z − 1 ) ! {\displaystyle (z-1)!} gives This infinite product, which is due to Euler, converges for all complex numbers z {\displaystyle z} except the non-positive integers, which fail because of a division by zero. Intuitively, this formula indicates that Γ ( z ) {\displaystyle \Gamma (z)} is approximately the result of computing Γ ( n + 1 ) = n ! {\displaystyle \Gamma (n+1)=n!} for some large integer n {\displaystyle n} , multiplying by ( n + 1 ) z {\displaystyle (n+1)^{z}} to approximate Γ ( n + z + 1 ) {\displaystyle \Gamma (n+z+1)} , and using the relationship Γ ( x + 1 ) = x Γ ( x ) {\displaystyle \Gamma (x+1)=x\Gamma (x)} backwards n + 1 {\displaystyle n+1} times to get an approximation for Γ ( z ) {\displaystyle \Gamma (z)} ; and furthermore that this approximation becomes exact as n {\displaystyle n} increases to infinity. The definition for the gamma function due to Weierstrass is also valid for all complex numbers z except the non-positive integers: where γ ≈ 0.577216 {\displaystyle \gamma \approx 0.577216} is the Euler–Mascheroni constant. This is the Hadamard product of 1 / Γ ( z ) {\displaystyle 1/\Gamma (z)} in a rewritten form. Besides the fundamental property discussed above: other important functional equations for the gamma function are Euler's reflection formula which implies and the Legendre duplication formula The duplication formula is a special case of the multiplication theorem (see Eq. 5.5.6): A simple but useful property, which can be seen from the limit definition, is: In particular, with z = a + bi, this product is If the real part is an integer or a half-integer, this can be finitely expressed in closed form: Perhaps the best-known value of the gamma function at a non-integer argument is which can be found by setting z = 1 2 {\textstyle z={\frac {1}{2}}} in the reflection or duplication formulas, by using the relation to the beta function given below with z 1 = z 2 = 1 2 {\textstyle z_{1}=z_{2}={\frac {1}{2}}} , or simply by making the substitution u = z {\displaystyle u={\sqrt {z}}} in the integral definition of the gamma function, resulting in a Gaussian integral. In general, for non-negative integer values of n {\displaystyle n} we have: where the double factorial ( 2 n − 1 ) ! ! = ( 2 n − 1 ) ( 2 n − 3 ) ⋯ ( 3 ) ( 1 ) {\displaystyle (2n-1)!!=(2n-1)(2n-3)\cdots (3)(1)} . See Particular values of the gamma function for calculated values. It might be tempting to generalize the result that Γ ( 1 2 ) = π {\textstyle \Gamma \left({\frac {1}{2}}\right)={\sqrt {\pi }}} by looking for a formula for other individual values Γ ( r ) {\displaystyle \Gamma (r)} where r {\displaystyle r} is rational, especially because according to Gauss's digamma theorem, it is possible to do so for the closely related digamma function at every rational value. However, these numbers Γ ( r ) {\displaystyle \Gamma (r)} are not known to be expressible by themselves in terms of elementary functions. It has been proved that Γ ( n + r ) {\displaystyle \Gamma (n+r)} is a transcendental number and algebraically independent of π {\displaystyle \pi } for any integer n {\displaystyle n} and each of the fractions r = 1 6 , 1 4 , 1 3 , 2 3 , 3 4 , 5 6 {\textstyle r={\frac {1}{6}},{\frac {1}{4}},{\frac {1}{3}},{\frac {2}{3}},{\frac {3}{4}},{\frac {5}{6}}} . In general, when computing values of the gamma function, we must settle for numerical approximations. The derivatives of the gamma function are described in terms of the polygamma function, ψ(z): For a positive integer m the derivative of the gamma function can be calculated as follows: where H(m) is the mth harmonic number and γ is the Euler–Mascheroni constant. For ℜ ( z ) > 0 {\displaystyle \Re (z)>0} the n {\displaystyle n} th derivative of the gamma function is: (This can be derived by differentiating the integral form of the gamma function with respect to z {\displaystyle z} , and using the technique of differentiation under the integral sign.) Using the identity where ζ ( z ) {\displaystyle \zeta (z)} is the Riemann zeta function, and π {\displaystyle \pi } is a partition of n {\displaystyle n} given by we have in particular the Laurent series expansion of the gamma function When restricted to the positive real numbers, the gamma function is a strictly logarithmically convex function. This property may be stated in any of the following three equivalent ways: The last of these statements is, essentially by definition, the same as the statement that ψ ( 1 ) ( x ) > 0 {\displaystyle \psi ^{(1)}(x)>0} , where ψ ( 1 ) {\displaystyle \psi ^{(1)}} is the polygamma function of order 1. To prove the logarithmic convexity of the gamma function, it therefore suffices to observe that ψ ( 1 ) {\displaystyle \psi ^{(1)}} has a series representation which, for positive real x, consists of only positive terms. Logarithmic convexity and Jensen's inequality together imply, for any positive real numbers x 1 , … , x n {\displaystyle x_{1},\ldots ,x_{n}} and a 1 , … , a n {\displaystyle a_{1},\ldots ,a_{n}} , There are also bounds on ratios of gamma functions. The best-known is Gautschi's inequality, which says that for any positive real number x and any s ∈ (0, 1), The behavior of Γ ( x ) {\displaystyle \Gamma (x)} for an increasing positive real variable is given by Stirling's formula where the symbol ∼ {\displaystyle \sim } means asymptotic convergence: the ratio of the two sides converges to 1 in the limit x → + ∞ {\textstyle x\to +\infty } . This growth is faster than exponential, exp ( β x ) {\displaystyle \exp(\beta x)} , for any fixed value of β {\displaystyle \beta } . Another useful limit for asymptotic approximations for x → + ∞ {\displaystyle x\to +\infty } is: When writing the error term as an infinite product, Stirling's formula can be used to define the gamma function: The behavior for non-positive z {\displaystyle z} is more intricate. Euler's integral does not converge for ℜ ( z ) ≤ 0 {\displaystyle \Re (z)\leq 0} , but the function it defines in the positive complex half-plane has a unique analytic continuation to the negative half-plane. One way to find that analytic continuation is to use Euler's integral for positive arguments and extend the domain to negative numbers by repeated application of the recurrence formula, choosing n {\displaystyle n} such that z + n {\displaystyle z+n} is positive. The product in the denominator is zero when z {\displaystyle z} equals any of the integers 0 , − 1 , − 2 , … {\displaystyle 0,-1,-2,\ldots } . Thus, the gamma function must be undefined at those points to avoid division by zero; it is a meromorphic function with simple poles at the non-positive integers. For a function f {\displaystyle f} of a complex variable z {\displaystyle z} , at a simple pole c {\displaystyle c} , the residue of f {\displaystyle f} is given by: For the simple pole z = − n , {\displaystyle z=-n,} we rewrite recurrence formula as: The numerator at z = − n , {\displaystyle z=-n,} is and the denominator So the residues of the gamma function at those points are: The gamma function is non-zero everywhere along the real line, although it comes arbitrarily close to zero as z → −∞. There is in fact no complex number z {\displaystyle z} for which Γ ( z ) = 0 {\displaystyle \Gamma (z)=0} , and hence the reciprocal gamma function 1 Γ ( z ) {\textstyle {\frac {1}{\Gamma (z)}}} is an entire function, with zeros at z = 0 , − 1 , − 2 , … {\displaystyle z=0,-1,-2,\ldots } . On the real line, the gamma function has a local minimum at zmin ≈ +1.46163214496836234126 where it attains the value Γ(zmin) ≈ +0.88560319441088870027. The gamma function rises to either side of this minimum. The solution to Γ(z − 0.5) = Γ(z + 0.5) is z = +1.5 and the common value is Γ(1) = Γ(2) = +1. The positive solution to Γ(z − 1) = Γ(z + 1) is z = φ ≈ +1.618, the golden ratio, and the common value is Γ(φ − 1) = Γ(φ + 1) = φ! ≈ +1.44922960226989660037. The gamma function must alternate sign between its poles at the non-positive integers because the product in the forward recurrence contains an odd number of negative factors if the number of poles between z {\displaystyle z} and z + n {\displaystyle z+n} is odd, and an even number if the number of poles is even. The values at the local extrema of the gamma function along the real axis between the non-positive integers are: There are many formulas, besides the Euler integral of the second kind, that express the gamma function as an integral. For instance, when the real part of z is positive, and where the three integrals respectively follow from the substitutions t = e − x {\displaystyle t=e^{-x}} , t = − log x {\displaystyle t=-\log x} and t = x 2 {\displaystyle t=x^{2}} in Euler's second integral. The last integral in particular makes clear the connection between the gamma function at half integer arguments and the Gaussian integral: if we let z = 1 / 2 {\displaystyle z=1/2} we get Γ ( 1 / 2 ) = π = 2 ∫ 0 ∞ e − t 2 d t {\textstyle \Gamma (1/2)={\sqrt {\pi }}=2\int _{0}^{\infty }e^{-t^{2}}\,dt} . Binet's first integral formula for the gamma function states that, when the real part of z is positive, then: The integral on the right-hand side may be interpreted as a Laplace transform. That is, Binet's second integral formula states that, again when the real part of z is positive, then: Let C be a Hankel contour, meaning a path that begins and ends at the point ∞ on the Riemann sphere, whose unit tangent vector converges to −1 at the start of the path and to 1 at the end, which has winding number 1 around 0, and which does not cross [0, ∞). Fix a branch of log ( − t ) {\displaystyle \log(-t)} by taking a branch cut along [0, ∞) and by taking log ( − t ) {\displaystyle \log(-t)} to be real when t is on the negative real axis. Assume z is not an integer. Then Hankel's formula for the gamma function is: where ( − t ) z − 1 {\displaystyle (-t)^{z-1}} is interpreted as exp ( ( z − 1 ) log ( − t ) ) {\displaystyle \exp((z-1)\log(-t))} . The reflection formula leads to the closely related expression again valid whenever z is not an integer. The gamma function can also be represented by a sum of two continued fractions: where z ∈ C {\displaystyle z\in \mathbb {C} } . The logarithm of the gamma function has the following Fourier series expansion for 0 < z < 1 : {\displaystyle 0<z<1:} which was for a long time attributed to Ernst Kummer, who derived it in 1847. However, Iaroslav Blagouchine discovered that Carl Johan Malmsten first derived this series in 1842. In 1840 Joseph Ludwig Raabe proved that In particular, if a = 0 {\displaystyle a=0} then The latter can be derived taking the logarithm in the above multiplication formula, which gives an expression for the Riemann sum of the integrand. Taking the limit for a → ∞ {\displaystyle a\to \infty } gives the formula. An alternative notation that was originally introduced by Gauss is the Π {\displaystyle \Pi } -function, which, in terms of the gamma function, is so that Π ( n ) = n ! {\displaystyle \Pi (n)=n!} for every non-negative integer n {\displaystyle n} . Using the pi function the reflection formula takes on the form where sinc is the normalized sinc function, while the multiplication theorem takes on the form We also sometimes find which is an entire function, defined for every complex number, just like the reciprocal gamma function. That π ( z ) {\displaystyle \pi (z)} is entire entails it has no poles, so Π ( z ) {\displaystyle \Pi \left(z\right)} , like Γ ( z ) {\displaystyle \Gamma \left(z\right)} , has no zeros. The volume of an n-ellipsoid with radii r1, …, rn can be expressed as Including up to the first 20 digits after the decimal point, some particular values of the gamma function are: (See sequences A245886, A019707, A002161, A019704, A245884, and A245885 in the OEIS.) The complex-valued gamma function is undefined for non-positive integers, but in these cases the value can be defined in the Riemann sphere as ∞. The reciprocal gamma function is well defined and analytic at these values (and in the entire complex plane): Because the gamma and factorial functions grow so rapidly for moderately large arguments, many computing environments include a function that returns the natural logarithm of the gamma function (often given the name lgamma or lngamma in programming environments or gammaln in spreadsheets); this grows much more slowly, and for combinatorial calculations allows adding and subtracting logs instead of multiplying and dividing very large values. It is often defined as The digamma function, which is the derivative of this function, is also commonly seen. In the context of technical and physical applications, e.g. with wave propagation, the functional equation is often used since it allows one to determine function values in one strip of width 1 in z from the neighbouring strip. In particular, starting with a good approximation for a z with large real part one may go step by step down to the desired z. Following an indication of Carl Friedrich Gauss, Rocktaeschel (1922) proposed for ln ( Γ ( z ) ) {\displaystyle \ln(\Gamma (z))} an approximation for large Re(z): This can be used to accurately approximate ln(Γ(z)) for z with a smaller Re(z) via (P.E.Böhmer, 1939) A more accurate approximation can be obtained by using more terms from the asymptotic expansions of ln(Γ(z)) and Γ(z), which are based on Stirling's approximation. In a more "natural" presentation: The coefficients of the terms with k > 1 of z in the last expansion are simply where the Bk are the Bernoulli numbers. The gamma function also has Stirling Series (derived by Charles Hermite in 1900) equal to The Bohr–Mollerup theorem states that among all functions extending the factorial functions to the positive real numbers, only the gamma function is log-convex, that is, its natural logarithm is convex on the positive real axis. Another characterisation is given by the Wielandt theorem. The gamma function is the unique function that simultaneously satisfies In a certain sense, the ln(Γ) function is the more natural form; it makes some intrinsic attributes of the function clearer. A striking example is the Taylor series of ln(Γ) around 1: with ζ(k) denoting the Riemann zeta function at k. So, using the following property: we can find an integral representation for the ln(Γ) function: or, setting z = 1 to obtain an integral for γ, we can replace the γ term with its integral and incorporate that into the above formula, to get: There also exist special formulas for the logarithm of the gamma function for rational z. For instance, if k {\displaystyle k} and n {\displaystyle n} are integers with k < n {\displaystyle k<n} and k ≠ n / 2 , {\displaystyle k\neq n/2\,,} then see. This formula is sometimes used for numerical computation, since the integrand decreases very quickly. The integral can be expressed in terms of the Barnes G-function (see Barnes G-function for a proof): where Re(z) > −1. It can also be written in terms of the Hurwitz zeta function: When z = 1 {\displaystyle z=1} it follows that and this is a consequence of Raabe's formula as well. O. Espinosa and V. Moll derived a similar formula for the integral of the square of ln Γ {\displaystyle \ln \Gamma } : where L 1 {\displaystyle L_{1}} is 1 2 ln ( 2 π ) {\displaystyle {\frac {1}{2}}\ln(2\pi )} . D. H. Bailey and his co-authors gave an evaluation for when n = 1 , 2 {\displaystyle n=1,2} in terms of the Tornheim–Witten zeta function and its derivatives. In addition, it is also known that Complex values of the gamma function can be approximated using Stirling's approximation or the Lanczos approximation, This is precise in the sense that the ratio of the approximation to the true value approaches 1 in the limit as |z| goes to infinity. The gamma function can be computed to fixed precision for Re ( z ) ∈ [ 1 , 2 ] {\displaystyle \operatorname {Re} (z)\in [1,2]} by applying integration by parts to Euler's integral. For any positive number x the gamma function can be written When Re(z) ∈ [1,2] and x ≥ 1 {\displaystyle x\geq 1} , the absolute value of the last integral is smaller than ( x + 1 ) e − x {\displaystyle (x+1)e^{-x}} . By choosing a large enough x {\displaystyle x} , this last expression can be made smaller than 2 − N {\displaystyle 2^{-N}} for any desired value N {\displaystyle N} . Thus, the gamma function can be evaluated to N {\displaystyle N} bits of precision with the above series. A fast algorithm for calculation of the Euler gamma function for any algebraic argument (including rational) was constructed by E.A. Karatsuba. For arguments that are integer multiples of 1/24, the gamma function can also be evaluated quickly using arithmetic–geometric mean iterations (see particular values of the gamma function). One author describes the gamma function as "Arguably, the most common special function, or the least 'special' of them. The other transcendental functions […] are called 'special' because you could conceivably avoid some of them by staying away from many specialized mathematical topics. On the other hand, the gamma function Γ(z) is most difficult to avoid." The gamma function finds application in such diverse areas as quantum physics, astrophysics and fluid dynamics. The gamma distribution, which is formulated in terms of the gamma function, is used in statistics to model a wide range of processes; for example, the time between occurrences of earthquakes. The primary reason for the gamma function's usefulness in such contexts is the prevalence of expressions of the type f ( t ) e − g ( t ) {\displaystyle f(t)e^{-g(t)}} which describe processes that decay exponentially in time or space. Integrals of such expressions can occasionally be solved in terms of the gamma function when no elementary solution exists. For example, if f is a power function and g is a linear function, a simple change of variables u := a ⋅ t {\displaystyle u:=a\cdot t} gives the evaluation The fact that the integration is performed along the entire positive real line might signify that the gamma function describes the cumulation of a time-dependent process that continues indefinitely, or the value might be the total of a distribution in an infinite space. It is of course frequently useful to take limits of integration other than 0 and ∞ to describe the cumulation of a finite process, in which case the ordinary gamma function is no longer a solution; the solution is then called an incomplete gamma function. (The ordinary gamma function, obtained by integrating across the entire positive real line, is sometimes called the complete gamma function for contrast.) An important category of exponentially decaying functions is that of Gaussian functions and integrals thereof, such as the error function. There are many interrelations between these functions and the gamma function; notably, the factor π {\displaystyle {\sqrt {\pi }}} obtained by evaluating Γ ( 1 2 ) {\textstyle \Gamma \left({\frac {1}{2}}\right)} is the "same" as that found in the normalizing factor of the error function and the normal distribution. The integrals we have discussed so far involve transcendental functions, but the gamma function also arises from integrals of purely algebraic functions. In particular, the arc lengths of ellipses and of the lemniscate, which are curves defined by algebraic equations, are given by elliptic integrals that in special cases can be evaluated in terms of the gamma function. The gamma function can also be used to calculate "volume" and "area" of n-dimensional hyperspheres. The gamma function's ability to generalize factorial products immediately leads to applications in many areas of mathematics; in combinatorics, and by extension in areas such as probability theory and the calculation of power series. Many expressions involving products of successive integers can be written as some combination of factorials, the most important example perhaps being that of the binomial coefficient The example of binomial coefficients motivates why the properties of the gamma function when extended to negative numbers are natural. A binomial coefficient gives the number of ways to choose k elements from a set of n elements; if k > n, there are of course no ways. If k > n, (n − k)! is the factorial of a negative integer and hence infinite if we use the gamma function definition of factorials—dividing by infinity gives the expected value of 0. We can replace the factorial by a gamma function to extend any such formula to the complex numbers. Generally, this works for any product wherein each factor is a rational function of the index variable, by factoring the rational function into linear expressions. If P and Q are monic polynomials of degree m and n with respective roots p1, …, pm and q1, …, qn, we have If we have a way to calculate the gamma function numerically, it is a breeze to calculate numerical values of such products. The number of gamma functions in the right-hand side depends only on the degree of the polynomials, so it does not matter whether b − a equals 5 or 10. By taking the appropriate limits, the equation can also be made to hold even when the left-hand product contains zeros or poles. By taking limits, certain rational products with infinitely many factors can be evaluated in terms of the gamma function as well. Due to the Weierstrass factorization theorem, analytic functions can be written as infinite products, and these can sometimes be represented as finite products or quotients of the gamma function. We have already seen one striking example: the reflection formula essentially represents the sine function as the product of two gamma functions. Starting from this formula, the exponential function as well as all the trigonometric and hyperbolic functions can be expressed in terms of the gamma function. More functions yet, including the hypergeometric function and special cases thereof, can be represented by means of complex contour integrals of products and quotients of the gamma function, called Mellin–Barnes integrals. An application of the gamma function is the study of the Riemann zeta function. A fundamental property of the Riemann zeta function is its functional equation: Among other things, this provides an explicit form for the analytic continuation of the zeta function to a meromorphic function in the complex plane and leads to an immediate proof that the zeta function has infinitely many so-called "trivial" zeros on the real line. Borwein et al. call this formula "one of the most beautiful findings in mathematics". Another contender for that title might be Both formulas were derived by Bernhard Riemann in his seminal 1859 paper "Ueber die Anzahl der Primzahlen unter einer gegebenen Größe" ("On the Number of Primes Less Than a Given Magnitude"), one of the milestones in the development of analytic number theory—the branch of mathematics that studies prime numbers using the tools of mathematical analysis. Factorial numbers, considered as discrete objects, are an important concept in classical number theory because they contain many prime factors, but Riemann found a use for their continuous extension that arguably turned out to be even more important. The gamma function has caught the interest of some of the most prominent mathematicians of all time. Its history, notably documented by Philip J. Davis in an article that won him the 1963 Chauvenet Prize, reflects many of the major developments within mathematics since the 18th century. In the words of Davis, "each generation has found something of interest to say about the gamma function. Perhaps the next generation will also." The problem of extending the factorial to non-integer arguments was apparently first considered by Daniel Bernoulli and Christian Goldbach in the 1720s. In particular, in a letter from Bernoulli to Goldbach dated 6 October 1729 Bernoulli introduced the product representation which is well defined for real values of x other than the negative integers. Leonard Euler later gave two different definitions: the first was not his integral but an infinite product that is well defined for all complex numbers n other than the negative integers, of which he informed Goldbach in a letter dated 13 October 1729. He wrote to Goldbach again on 8 January 1730, to announce his discovery of the integral representation which is valid when the real part of the complex number n is strictly greater than −1 (i.e., ℜ ( n ) > − 1 {\displaystyle \Re (n)>-1} ). By the change of variables t = −ln s, this becomes the familiar Euler integral. Euler published his results in the paper "De progressionibus transcendentibus seu quarum termini generales algebraice dari nequeunt" ("On transcendental progressions, that is, those whose general terms cannot be given algebraically"), submitted to the St. Petersburg Academy on 28 November 1729. Euler further discovered some of the gamma function's important functional properties, including the reflection formula. James Stirling, a contemporary of Euler, also attempted to find a continuous expression for the factorial and came up with what is now known as Stirling's formula. Although Stirling's formula gives a good estimate of n!, also for non-integers, it does not provide the exact value. Extensions of his formula that correct the error were given by Stirling himself and by Jacques Philippe Marie Binet. Carl Friedrich Gauss rewrote Euler's product as and used this formula to discover new properties of the gamma function. Although Euler was a pioneer in the theory of complex variables, he does not appear to have considered the factorial of a complex number, as instead Gauss first did. Gauss also proved the multiplication theorem of the gamma function and investigated the connection between the gamma function and elliptic integrals. Karl Weierstrass further established the role of the gamma function in complex analysis, starting from yet another product representation, where γ is the Euler–Mascheroni constant. Weierstrass originally wrote his product as one for 1/Γ, in which case it is taken over the function's zeros rather than its poles. Inspired by this result, he proved what is known as the Weierstrass factorization theorem—that any entire function can be written as a product over its zeros in the complex plane; a generalization of the fundamental theorem of algebra. The name gamma function and the symbol Γ were introduced by Adrien-Marie Legendre around 1811; Legendre also rewrote Euler's integral definition in its modern form. Although the symbol is an upper-case Greek gamma, there is no accepted standard for whether the function name should be written "gamma function" or "Gamma function" (some authors simply write "Γ-function"). The alternative "pi function" notation Π(z) = z! due to Gauss is sometimes encountered in older literature, but Legendre's notation is dominant in modern works. It is justified to ask why we distinguish between the "ordinary factorial" and the gamma function by using distinct symbols, and particularly why the gamma function should be normalized to Γ(n + 1) = n! instead of simply using "Γ(n) = n!". Consider that the notation for exponents, x, has been generalized from integers to complex numbers x without any change. Legendre's motivation for the normalization does not appear to be known, and has been criticized as cumbersome by some (the 20th-century mathematician Cornelius Lanczos, for example, called it "void of any rationality" and would instead use z!). Legendre's normalization does simplify some formulae, but complicates others. From a modern point of view, the Legendre normalization of the gamma function is the integral of the additive character e against the multiplicative character x with respect to the Haar measure d x x {\textstyle {\frac {dx}{x}}} on the Lie group R. Thus this normalization makes it clearer that the gamma function is a continuous analogue of a Gauss sum. It is somewhat problematic that a large number of definitions have been given for the gamma function. Although they describe the same function, it is not entirely straightforward to prove the equivalence. Stirling never proved that his extended formula corresponds exactly to Euler's gamma function; a proof was first given by Charles Hermite in 1900. Instead of finding a specialized proof for each formula, it would be desirable to have a general method of identifying the gamma function. One way to prove would be to find a differential equation that characterizes the gamma function. Most special functions in applied mathematics arise as solutions to differential equations, whose solutions are unique. However, the gamma function does not appear to satisfy any simple differential equation. Otto Hölder proved in 1887 that the gamma function at least does not satisfy any algebraic differential equation by showing that a solution to such an equation could not satisfy the gamma function's recurrence formula, making it a transcendentally transcendental function. This result is known as Hölder's theorem. A definite and generally applicable characterization of the gamma function was not given until 1922. Harald Bohr and Johannes Mollerup then proved what is known as the Bohr–Mollerup theorem: that the gamma function is the unique solution to the factorial recurrence relation that is positive and logarithmically convex for positive z and whose value at 1 is 1 (a function is logarithmically convex if its logarithm is convex). Another characterisation is given by the Wielandt theorem. The Bohr–Mollerup theorem is useful because it is relatively easy to prove logarithmic convexity for any of the different formulas used to define the gamma function. Taking things further, instead of defining the gamma function by any particular formula, we can choose the conditions of the Bohr–Mollerup theorem as the definition, and then pick any formula we like that satisfies the conditions as a starting point for studying the gamma function. This approach was used by the Bourbaki group. Borwein & Corless review three centuries of work on the gamma function. Although the gamma function can be calculated virtually as easily as any mathematically simpler function with a modern computer—even with a programmable pocket calculator—this was of course not always the case. Until the mid-20th century, mathematicians relied on hand-made tables; in the case of the gamma function, notably a table computed by Gauss in 1813 and one computed by Legendre in 1825. Tables of complex values of the gamma function, as well as hand-drawn graphs, were given in Tables of Functions With Formulas and Curves by Jahnke and Emde [de], first published in Germany in 1909. According to Michael Berry, "the publication in J&E of a three-dimensional graph showing the poles of the gamma function in the complex plane acquired an almost iconic status." There was in fact little practical need for anything but real values of the gamma function until the 1930s, when applications for the complex gamma function were discovered in theoretical physics. As electronic computers became available for the production of tables in the 1950s, several extensive tables for the complex gamma function were published to meet the demand, including a table accurate to 12 decimal places from the U.S. National Bureau of Standards. Double-precision floating-point implementations of the gamma function and its logarithm are now available in most scientific computing software and special functions libraries, for example TK Solver, Matlab, GNU Octave, and the GNU Scientific Library. The gamma function was also added to the C standard library (math.h). Arbitrary-precision implementations are available in most computer algebra systems, such as Mathematica and Maple. PARI/GP, MPFR and MPFUN contain free arbitrary-precision implementations. In some software calculators, e.g. Windows Calculator and GNOME Calculator, the factorial function returns Γ(x + 1) when the input x is a non-integer value.
[ { "paragraph_id": 0, "text": "In mathematics, the gamma function (represented by Γ, the capital letter gamma from the Greek alphabet) is one commonly used extension of the factorial function to complex numbers. The gamma function is defined for all complex numbers except the non-positive integers. For every positive integer n,", "title": "" }, { "paragraph_id": 1, "text": "Derived by Daniel Bernoulli, for complex numbers with a positive real part, the gamma function is defined via a convergent improper integral:", "title": "" }, { "paragraph_id": 2, "text": "The gamma function then is defined as the analytic continuation of this integral function to a meromorphic function that is holomorphic in the whole complex plane except zero and the negative integers, where the function has simple poles.", "title": "" }, { "paragraph_id": 3, "text": "The gamma function has no zeros, so the reciprocal gamma function 1/Γ(z) is an entire function. In fact, the gamma function corresponds to the Mellin transform of the negative exponential function:", "title": "" }, { "paragraph_id": 4, "text": "Other extensions of the factorial function do exist, but the gamma function is the most popular and useful. It is a component in various probability-distribution functions, and as such it is applicable in the fields of probability and statistics, as well as combinatorics.", "title": "" }, { "paragraph_id": 5, "text": "The gamma function can be seen as a solution to the following interpolation problem:", "title": "Motivation" }, { "paragraph_id": 6, "text": "A plot of the first few factorials suggests that such a curve can be drawn, but it would be preferable to have a formula that precisely describes the curve. The simple formula for the factorial, x! = 1 × 2 × ⋯ × x, cannot be used directly for non-integer values of x since it is only valid when x is a natural number (or positive integer). There are, relatively speaking, no such simple solutions for factorials; no finite combination of sums, products, powers, exponential functions, or logarithms will suffice to express x!; but it is possible to find a general formula for factorials using tools such as integrals and limits from calculus. A good solution to this is the gamma function.", "title": "Motivation" }, { "paragraph_id": 7, "text": "There are infinitely many continuous extensions of the factorial to non-integers: infinitely many curves can be drawn through any set of isolated points. The gamma function is the most useful solution in practice, being analytic (except at the non-positive integers), and it can be defined in several equivalent ways. However, it is not the only analytic function that extends the factorial, as adding to it any analytic function that is zero on the positive integers, such as k sin mπx for an integer m, will give another function with that property. Such a function is known as a pseudogamma function, the most famous being the Hadamard function.", "title": "Motivation" }, { "paragraph_id": 8, "text": "A more restrictive property than satisfying the above interpolation is to satisfy the recurrence relation defining a translated version of the factorial function,", "title": "Motivation" }, { "paragraph_id": 9, "text": "for any positive real number x. But this would allow for multiplication by any function g(x) satisfying both g(x) = g(x+1) for all real numbers x and g(0) = 1, such as the function g(x) = e. One of several ways to resolve the ambiguity comes from the Bohr–Mollerup theorem. It states that when the condition that f be logarithmically convex (or \"super-convex\", meaning that ln ∘ f {\\displaystyle \\ln \\circ f} is convex) is added, it uniquely determines f for positive, real inputs. From there, the gamma function can be extended to all real and complex values (except the negative integers and zero) by using the unique analytic continuation of f.", "title": "Motivation" }, { "paragraph_id": 10, "text": "The notation Γ ( z ) {\\displaystyle \\Gamma (z)} is due to Legendre. If the real part of the complex number z is strictly positive ( ℜ ( z ) > 0 {\\displaystyle \\Re (z)>0} ), then the integral", "title": "Definition" }, { "paragraph_id": 11, "text": "converges absolutely, and is known as the Euler integral of the second kind. (Euler's integral of the first kind is the beta function.) Using integration by parts, one sees that:", "title": "Definition" }, { "paragraph_id": 12, "text": "Recognizing that − t z e − t → 0 {\\displaystyle -t^{z}e^{-t}\\to 0} as t → ∞ , {\\displaystyle t\\to \\infty ,}", "title": "Definition" }, { "paragraph_id": 13, "text": "We can calculate Γ ( 1 ) {\\displaystyle \\Gamma (1)} :", "title": "Definition" }, { "paragraph_id": 14, "text": "Thus we can show that Γ ( n ) = ( n − 1 ) ! {\\displaystyle \\Gamma (n)=(n-1)!} for any positive integer n by induction. Specifically, the base case is that Γ ( 1 ) = 1 = 0 ! {\\displaystyle \\Gamma (1)=1=0!} , and the induction step is that Γ ( n + 1 ) = n Γ ( n ) = n ( n − 1 ) ! = n ! . {\\displaystyle \\Gamma (n+1)=n\\Gamma (n)=n(n-1)!=n!.}", "title": "Definition" }, { "paragraph_id": 15, "text": "The identity Γ ( z ) = Γ ( z + 1 ) z {\\textstyle \\Gamma (z)={\\frac {\\Gamma (z+1)}{z}}} can be used (or, yielding the same result, analytic continuation can be used) to uniquely extend the integral formulation for Γ ( z ) {\\displaystyle \\Gamma (z)} to a meromorphic function defined for all complex numbers z, except integers less than or equal to zero. It is this extended version that is commonly referred to as the gamma function.", "title": "Definition" }, { "paragraph_id": 16, "text": "There are many equivalent definitions.", "title": "Definition" }, { "paragraph_id": 17, "text": "For a fixed integer m {\\displaystyle m} , as the integer n {\\displaystyle n} increases, we have that", "title": "Definition" }, { "paragraph_id": 18, "text": "If m {\\displaystyle m} is not an integer then it is not possible to say whether this equation is true because we have not yet (in this section) defined the factorial function for non-integers. However, we do get a unique extension of the factorial function to the non-integers by insisting that this equation continue to hold when the arbitrary integer m {\\displaystyle m} is replaced by an arbitrary complex number z {\\displaystyle z} ,", "title": "Definition" }, { "paragraph_id": 19, "text": "Multiplying both sides by ( z − 1 ) ! {\\displaystyle (z-1)!} gives", "title": "Definition" }, { "paragraph_id": 20, "text": "This infinite product, which is due to Euler, converges for all complex numbers z {\\displaystyle z} except the non-positive integers, which fail because of a division by zero. Intuitively, this formula indicates that Γ ( z ) {\\displaystyle \\Gamma (z)} is approximately the result of computing Γ ( n + 1 ) = n ! {\\displaystyle \\Gamma (n+1)=n!} for some large integer n {\\displaystyle n} , multiplying by ( n + 1 ) z {\\displaystyle (n+1)^{z}} to approximate Γ ( n + z + 1 ) {\\displaystyle \\Gamma (n+z+1)} , and using the relationship Γ ( x + 1 ) = x Γ ( x ) {\\displaystyle \\Gamma (x+1)=x\\Gamma (x)} backwards n + 1 {\\displaystyle n+1} times to get an approximation for Γ ( z ) {\\displaystyle \\Gamma (z)} ; and furthermore that this approximation becomes exact as n {\\displaystyle n} increases to infinity.", "title": "Definition" }, { "paragraph_id": 21, "text": "The definition for the gamma function due to Weierstrass is also valid for all complex numbers z except the non-positive integers:", "title": "Definition" }, { "paragraph_id": 22, "text": "where γ ≈ 0.577216 {\\displaystyle \\gamma \\approx 0.577216} is the Euler–Mascheroni constant. This is the Hadamard product of 1 / Γ ( z ) {\\displaystyle 1/\\Gamma (z)} in a rewritten form.", "title": "Definition" }, { "paragraph_id": 23, "text": "Besides the fundamental property discussed above:", "title": "Properties" }, { "paragraph_id": 24, "text": "other important functional equations for the gamma function are Euler's reflection formula", "title": "Properties" }, { "paragraph_id": 25, "text": "which implies", "title": "Properties" }, { "paragraph_id": 26, "text": "and the Legendre duplication formula", "title": "Properties" }, { "paragraph_id": 27, "text": "The duplication formula is a special case of the multiplication theorem (see Eq. 5.5.6):", "title": "Properties" }, { "paragraph_id": 28, "text": "A simple but useful property, which can be seen from the limit definition, is:", "title": "Properties" }, { "paragraph_id": 29, "text": "In particular, with z = a + bi, this product is", "title": "Properties" }, { "paragraph_id": 30, "text": "If the real part is an integer or a half-integer, this can be finitely expressed in closed form:", "title": "Properties" }, { "paragraph_id": 31, "text": "Perhaps the best-known value of the gamma function at a non-integer argument is", "title": "Properties" }, { "paragraph_id": 32, "text": "which can be found by setting z = 1 2 {\\textstyle z={\\frac {1}{2}}} in the reflection or duplication formulas, by using the relation to the beta function given below with z 1 = z 2 = 1 2 {\\textstyle z_{1}=z_{2}={\\frac {1}{2}}} , or simply by making the substitution u = z {\\displaystyle u={\\sqrt {z}}} in the integral definition of the gamma function, resulting in a Gaussian integral. In general, for non-negative integer values of n {\\displaystyle n} we have:", "title": "Properties" }, { "paragraph_id": 33, "text": "where the double factorial ( 2 n − 1 ) ! ! = ( 2 n − 1 ) ( 2 n − 3 ) ⋯ ( 3 ) ( 1 ) {\\displaystyle (2n-1)!!=(2n-1)(2n-3)\\cdots (3)(1)} . See Particular values of the gamma function for calculated values.", "title": "Properties" }, { "paragraph_id": 34, "text": "It might be tempting to generalize the result that Γ ( 1 2 ) = π {\\textstyle \\Gamma \\left({\\frac {1}{2}}\\right)={\\sqrt {\\pi }}} by looking for a formula for other individual values Γ ( r ) {\\displaystyle \\Gamma (r)} where r {\\displaystyle r} is rational, especially because according to Gauss's digamma theorem, it is possible to do so for the closely related digamma function at every rational value. However, these numbers Γ ( r ) {\\displaystyle \\Gamma (r)} are not known to be expressible by themselves in terms of elementary functions. It has been proved that Γ ( n + r ) {\\displaystyle \\Gamma (n+r)} is a transcendental number and algebraically independent of π {\\displaystyle \\pi } for any integer n {\\displaystyle n} and each of the fractions r = 1 6 , 1 4 , 1 3 , 2 3 , 3 4 , 5 6 {\\textstyle r={\\frac {1}{6}},{\\frac {1}{4}},{\\frac {1}{3}},{\\frac {2}{3}},{\\frac {3}{4}},{\\frac {5}{6}}} . In general, when computing values of the gamma function, we must settle for numerical approximations.", "title": "Properties" }, { "paragraph_id": 35, "text": "The derivatives of the gamma function are described in terms of the polygamma function, ψ(z):", "title": "Properties" }, { "paragraph_id": 36, "text": "For a positive integer m the derivative of the gamma function can be calculated as follows:", "title": "Properties" }, { "paragraph_id": 37, "text": "where H(m) is the mth harmonic number and γ is the Euler–Mascheroni constant.", "title": "Properties" }, { "paragraph_id": 38, "text": "For ℜ ( z ) > 0 {\\displaystyle \\Re (z)>0} the n {\\displaystyle n} th derivative of the gamma function is:", "title": "Properties" }, { "paragraph_id": 39, "text": "(This can be derived by differentiating the integral form of the gamma function with respect to z {\\displaystyle z} , and using the technique of differentiation under the integral sign.)", "title": "Properties" }, { "paragraph_id": 40, "text": "Using the identity", "title": "Properties" }, { "paragraph_id": 41, "text": "where ζ ( z ) {\\displaystyle \\zeta (z)} is the Riemann zeta function, and π {\\displaystyle \\pi } is a partition of n {\\displaystyle n} given by", "title": "Properties" }, { "paragraph_id": 42, "text": "we have in particular the Laurent series expansion of the gamma function", "title": "Properties" }, { "paragraph_id": 43, "text": "When restricted to the positive real numbers, the gamma function is a strictly logarithmically convex function. This property may be stated in any of the following three equivalent ways:", "title": "Properties" }, { "paragraph_id": 44, "text": "The last of these statements is, essentially by definition, the same as the statement that ψ ( 1 ) ( x ) > 0 {\\displaystyle \\psi ^{(1)}(x)>0} , where ψ ( 1 ) {\\displaystyle \\psi ^{(1)}} is the polygamma function of order 1. To prove the logarithmic convexity of the gamma function, it therefore suffices to observe that ψ ( 1 ) {\\displaystyle \\psi ^{(1)}} has a series representation which, for positive real x, consists of only positive terms.", "title": "Properties" }, { "paragraph_id": 45, "text": "Logarithmic convexity and Jensen's inequality together imply, for any positive real numbers x 1 , … , x n {\\displaystyle x_{1},\\ldots ,x_{n}} and a 1 , … , a n {\\displaystyle a_{1},\\ldots ,a_{n}} ,", "title": "Properties" }, { "paragraph_id": 46, "text": "There are also bounds on ratios of gamma functions. The best-known is Gautschi's inequality, which says that for any positive real number x and any s ∈ (0, 1),", "title": "Properties" }, { "paragraph_id": 47, "text": "The behavior of Γ ( x ) {\\displaystyle \\Gamma (x)} for an increasing positive real variable is given by Stirling's formula", "title": "Properties" }, { "paragraph_id": 48, "text": "where the symbol ∼ {\\displaystyle \\sim } means asymptotic convergence: the ratio of the two sides converges to 1 in the limit x → + ∞ {\\textstyle x\\to +\\infty } . This growth is faster than exponential, exp ( β x ) {\\displaystyle \\exp(\\beta x)} , for any fixed value of β {\\displaystyle \\beta } .", "title": "Properties" }, { "paragraph_id": 49, "text": "Another useful limit for asymptotic approximations for x → + ∞ {\\displaystyle x\\to +\\infty } is:", "title": "Properties" }, { "paragraph_id": 50, "text": "When writing the error term as an infinite product, Stirling's formula can be used to define the gamma function:", "title": "Properties" }, { "paragraph_id": 51, "text": "The behavior for non-positive z {\\displaystyle z} is more intricate. Euler's integral does not converge for ℜ ( z ) ≤ 0 {\\displaystyle \\Re (z)\\leq 0} , but the function it defines in the positive complex half-plane has a unique analytic continuation to the negative half-plane. One way to find that analytic continuation is to use Euler's integral for positive arguments and extend the domain to negative numbers by repeated application of the recurrence formula,", "title": "Properties" }, { "paragraph_id": 52, "text": "choosing n {\\displaystyle n} such that z + n {\\displaystyle z+n} is positive. The product in the denominator is zero when z {\\displaystyle z} equals any of the integers 0 , − 1 , − 2 , … {\\displaystyle 0,-1,-2,\\ldots } . Thus, the gamma function must be undefined at those points to avoid division by zero; it is a meromorphic function with simple poles at the non-positive integers.", "title": "Properties" }, { "paragraph_id": 53, "text": "For a function f {\\displaystyle f} of a complex variable z {\\displaystyle z} , at a simple pole c {\\displaystyle c} , the residue of f {\\displaystyle f} is given by:", "title": "Properties" }, { "paragraph_id": 54, "text": "For the simple pole z = − n , {\\displaystyle z=-n,} we rewrite recurrence formula as:", "title": "Properties" }, { "paragraph_id": 55, "text": "The numerator at z = − n , {\\displaystyle z=-n,} is", "title": "Properties" }, { "paragraph_id": 56, "text": "and the denominator", "title": "Properties" }, { "paragraph_id": 57, "text": "So the residues of the gamma function at those points are:", "title": "Properties" }, { "paragraph_id": 58, "text": "The gamma function is non-zero everywhere along the real line, although it comes arbitrarily close to zero as z → −∞. There is in fact no complex number z {\\displaystyle z} for which Γ ( z ) = 0 {\\displaystyle \\Gamma (z)=0} , and hence the reciprocal gamma function 1 Γ ( z ) {\\textstyle {\\frac {1}{\\Gamma (z)}}} is an entire function, with zeros at z = 0 , − 1 , − 2 , … {\\displaystyle z=0,-1,-2,\\ldots } .", "title": "Properties" }, { "paragraph_id": 59, "text": "On the real line, the gamma function has a local minimum at zmin ≈ +1.46163214496836234126 where it attains the value Γ(zmin) ≈ +0.88560319441088870027. The gamma function rises to either side of this minimum. The solution to Γ(z − 0.5) = Γ(z + 0.5) is z = +1.5 and the common value is Γ(1) = Γ(2) = +1. The positive solution to Γ(z − 1) = Γ(z + 1) is z = φ ≈ +1.618, the golden ratio, and the common value is Γ(φ − 1) = Γ(φ + 1) = φ! ≈ +1.44922960226989660037.", "title": "Properties" }, { "paragraph_id": 60, "text": "The gamma function must alternate sign between its poles at the non-positive integers because the product in the forward recurrence contains an odd number of negative factors if the number of poles between z {\\displaystyle z} and z + n {\\displaystyle z+n} is odd, and an even number if the number of poles is even. The values at the local extrema of the gamma function along the real axis between the non-positive integers are:", "title": "Properties" }, { "paragraph_id": 61, "text": "There are many formulas, besides the Euler integral of the second kind, that express the gamma function as an integral. For instance, when the real part of z is positive,", "title": "Properties" }, { "paragraph_id": 62, "text": "and", "title": "Properties" }, { "paragraph_id": 63, "text": "where the three integrals respectively follow from the substitutions t = e − x {\\displaystyle t=e^{-x}} , t = − log x {\\displaystyle t=-\\log x} and t = x 2 {\\displaystyle t=x^{2}} in Euler's second integral. The last integral in particular makes clear the connection between the gamma function at half integer arguments and the Gaussian integral: if we let z = 1 / 2 {\\displaystyle z=1/2} we get Γ ( 1 / 2 ) = π = 2 ∫ 0 ∞ e − t 2 d t {\\textstyle \\Gamma (1/2)={\\sqrt {\\pi }}=2\\int _{0}^{\\infty }e^{-t^{2}}\\,dt} .", "title": "Properties" }, { "paragraph_id": 64, "text": "Binet's first integral formula for the gamma function states that, when the real part of z is positive, then:", "title": "Properties" }, { "paragraph_id": 65, "text": "The integral on the right-hand side may be interpreted as a Laplace transform. That is,", "title": "Properties" }, { "paragraph_id": 66, "text": "Binet's second integral formula states that, again when the real part of z is positive, then:", "title": "Properties" }, { "paragraph_id": 67, "text": "Let C be a Hankel contour, meaning a path that begins and ends at the point ∞ on the Riemann sphere, whose unit tangent vector converges to −1 at the start of the path and to 1 at the end, which has winding number 1 around 0, and which does not cross [0, ∞). Fix a branch of log ( − t ) {\\displaystyle \\log(-t)} by taking a branch cut along [0, ∞) and by taking log ( − t ) {\\displaystyle \\log(-t)} to be real when t is on the negative real axis. Assume z is not an integer. Then Hankel's formula for the gamma function is:", "title": "Properties" }, { "paragraph_id": 68, "text": "where ( − t ) z − 1 {\\displaystyle (-t)^{z-1}} is interpreted as exp ( ( z − 1 ) log ( − t ) ) {\\displaystyle \\exp((z-1)\\log(-t))} . The reflection formula leads to the closely related expression", "title": "Properties" }, { "paragraph_id": 69, "text": "again valid whenever z is not an integer.", "title": "Properties" }, { "paragraph_id": 70, "text": "The gamma function can also be represented by a sum of two continued fractions:", "title": "Properties" }, { "paragraph_id": 71, "text": "where z ∈ C {\\displaystyle z\\in \\mathbb {C} } .", "title": "Properties" }, { "paragraph_id": 72, "text": "The logarithm of the gamma function has the following Fourier series expansion for 0 < z < 1 : {\\displaystyle 0<z<1:}", "title": "Properties" }, { "paragraph_id": 73, "text": "which was for a long time attributed to Ernst Kummer, who derived it in 1847. However, Iaroslav Blagouchine discovered that Carl Johan Malmsten first derived this series in 1842.", "title": "Properties" }, { "paragraph_id": 74, "text": "In 1840 Joseph Ludwig Raabe proved that", "title": "Properties" }, { "paragraph_id": 75, "text": "In particular, if a = 0 {\\displaystyle a=0} then", "title": "Properties" }, { "paragraph_id": 76, "text": "The latter can be derived taking the logarithm in the above multiplication formula, which gives an expression for the Riemann sum of the integrand. Taking the limit for a → ∞ {\\displaystyle a\\to \\infty } gives the formula.", "title": "Properties" }, { "paragraph_id": 77, "text": "An alternative notation that was originally introduced by Gauss is the Π {\\displaystyle \\Pi } -function, which, in terms of the gamma function, is", "title": "Properties" }, { "paragraph_id": 78, "text": "so that Π ( n ) = n ! {\\displaystyle \\Pi (n)=n!} for every non-negative integer n {\\displaystyle n} .", "title": "Properties" }, { "paragraph_id": 79, "text": "Using the pi function the reflection formula takes on the form", "title": "Properties" }, { "paragraph_id": 80, "text": "where sinc is the normalized sinc function, while the multiplication theorem takes on the form", "title": "Properties" }, { "paragraph_id": 81, "text": "We also sometimes find", "title": "Properties" }, { "paragraph_id": 82, "text": "which is an entire function, defined for every complex number, just like the reciprocal gamma function. That π ( z ) {\\displaystyle \\pi (z)} is entire entails it has no poles, so Π ( z ) {\\displaystyle \\Pi \\left(z\\right)} , like Γ ( z ) {\\displaystyle \\Gamma \\left(z\\right)} , has no zeros.", "title": "Properties" }, { "paragraph_id": 83, "text": "The volume of an n-ellipsoid with radii r1, …, rn can be expressed as", "title": "Properties" }, { "paragraph_id": 84, "text": "Including up to the first 20 digits after the decimal point, some particular values of the gamma function are:", "title": "Properties" }, { "paragraph_id": 85, "text": "(See sequences A245886, A019707, A002161, A019704, A245884, and A245885 in the OEIS.) The complex-valued gamma function is undefined for non-positive integers, but in these cases the value can be defined in the Riemann sphere as ∞. The reciprocal gamma function is well defined and analytic at these values (and in the entire complex plane):", "title": "Properties" }, { "paragraph_id": 86, "text": "Because the gamma and factorial functions grow so rapidly for moderately large arguments, many computing environments include a function that returns the natural logarithm of the gamma function (often given the name lgamma or lngamma in programming environments or gammaln in spreadsheets); this grows much more slowly, and for combinatorial calculations allows adding and subtracting logs instead of multiplying and dividing very large values. It is often defined as", "title": "Log-gamma function" }, { "paragraph_id": 87, "text": "The digamma function, which is the derivative of this function, is also commonly seen. In the context of technical and physical applications, e.g. with wave propagation, the functional equation", "title": "Log-gamma function" }, { "paragraph_id": 88, "text": "is often used since it allows one to determine function values in one strip of width 1 in z from the neighbouring strip. In particular, starting with a good approximation for a z with large real part one may go step by step down to the desired z. Following an indication of Carl Friedrich Gauss, Rocktaeschel (1922) proposed for ln ( Γ ( z ) ) {\\displaystyle \\ln(\\Gamma (z))} an approximation for large Re(z):", "title": "Log-gamma function" }, { "paragraph_id": 89, "text": "This can be used to accurately approximate ln(Γ(z)) for z with a smaller Re(z) via (P.E.Böhmer, 1939)", "title": "Log-gamma function" }, { "paragraph_id": 90, "text": "A more accurate approximation can be obtained by using more terms from the asymptotic expansions of ln(Γ(z)) and Γ(z), which are based on Stirling's approximation.", "title": "Log-gamma function" }, { "paragraph_id": 91, "text": "In a more \"natural\" presentation:", "title": "Log-gamma function" }, { "paragraph_id": 92, "text": "The coefficients of the terms with k > 1 of z in the last expansion are simply", "title": "Log-gamma function" }, { "paragraph_id": 93, "text": "where the Bk are the Bernoulli numbers.", "title": "Log-gamma function" }, { "paragraph_id": 94, "text": "The gamma function also has Stirling Series (derived by Charles Hermite in 1900) equal to", "title": "Log-gamma function" }, { "paragraph_id": 95, "text": "The Bohr–Mollerup theorem states that among all functions extending the factorial functions to the positive real numbers, only the gamma function is log-convex, that is, its natural logarithm is convex on the positive real axis. Another characterisation is given by the Wielandt theorem.", "title": "Log-gamma function" }, { "paragraph_id": 96, "text": "The gamma function is the unique function that simultaneously satisfies", "title": "Log-gamma function" }, { "paragraph_id": 97, "text": "In a certain sense, the ln(Γ) function is the more natural form; it makes some intrinsic attributes of the function clearer. A striking example is the Taylor series of ln(Γ) around 1:", "title": "Log-gamma function" }, { "paragraph_id": 98, "text": "with ζ(k) denoting the Riemann zeta function at k.", "title": "Log-gamma function" }, { "paragraph_id": 99, "text": "So, using the following property:", "title": "Log-gamma function" }, { "paragraph_id": 100, "text": "we can find an integral representation for the ln(Γ) function:", "title": "Log-gamma function" }, { "paragraph_id": 101, "text": "or, setting z = 1 to obtain an integral for γ, we can replace the γ term with its integral and incorporate that into the above formula, to get:", "title": "Log-gamma function" }, { "paragraph_id": 102, "text": "There also exist special formulas for the logarithm of the gamma function for rational z. For instance, if k {\\displaystyle k} and n {\\displaystyle n} are integers with k < n {\\displaystyle k<n} and k ≠ n / 2 , {\\displaystyle k\\neq n/2\\,,} then", "title": "Log-gamma function" }, { "paragraph_id": 103, "text": "see. This formula is sometimes used for numerical computation, since the integrand decreases very quickly.", "title": "Log-gamma function" }, { "paragraph_id": 104, "text": "The integral", "title": "Log-gamma function" }, { "paragraph_id": 105, "text": "can be expressed in terms of the Barnes G-function (see Barnes G-function for a proof):", "title": "Log-gamma function" }, { "paragraph_id": 106, "text": "where Re(z) > −1.", "title": "Log-gamma function" }, { "paragraph_id": 107, "text": "It can also be written in terms of the Hurwitz zeta function:", "title": "Log-gamma function" }, { "paragraph_id": 108, "text": "When z = 1 {\\displaystyle z=1} it follows that", "title": "Log-gamma function" }, { "paragraph_id": 109, "text": "and this is a consequence of Raabe's formula as well. O. Espinosa and V. Moll derived a similar formula for the integral of the square of ln Γ {\\displaystyle \\ln \\Gamma } :", "title": "Log-gamma function" }, { "paragraph_id": 110, "text": "where L 1 {\\displaystyle L_{1}} is 1 2 ln ( 2 π ) {\\displaystyle {\\frac {1}{2}}\\ln(2\\pi )} .", "title": "Log-gamma function" }, { "paragraph_id": 111, "text": "D. H. Bailey and his co-authors gave an evaluation for", "title": "Log-gamma function" }, { "paragraph_id": 112, "text": "when n = 1 , 2 {\\displaystyle n=1,2} in terms of the Tornheim–Witten zeta function and its derivatives.", "title": "Log-gamma function" }, { "paragraph_id": 113, "text": "In addition, it is also known that", "title": "Log-gamma function" }, { "paragraph_id": 114, "text": "Complex values of the gamma function can be approximated using Stirling's approximation or the Lanczos approximation,", "title": "Approximations" }, { "paragraph_id": 115, "text": "This is precise in the sense that the ratio of the approximation to the true value approaches 1 in the limit as |z| goes to infinity.", "title": "Approximations" }, { "paragraph_id": 116, "text": "The gamma function can be computed to fixed precision for Re ( z ) ∈ [ 1 , 2 ] {\\displaystyle \\operatorname {Re} (z)\\in [1,2]} by applying integration by parts to Euler's integral. For any positive number x the gamma function can be written", "title": "Approximations" }, { "paragraph_id": 117, "text": "When Re(z) ∈ [1,2] and x ≥ 1 {\\displaystyle x\\geq 1} , the absolute value of the last integral is smaller than ( x + 1 ) e − x {\\displaystyle (x+1)e^{-x}} . By choosing a large enough x {\\displaystyle x} , this last expression can be made smaller than 2 − N {\\displaystyle 2^{-N}} for any desired value N {\\displaystyle N} . Thus, the gamma function can be evaluated to N {\\displaystyle N} bits of precision with the above series.", "title": "Approximations" }, { "paragraph_id": 118, "text": "A fast algorithm for calculation of the Euler gamma function for any algebraic argument (including rational) was constructed by E.A. Karatsuba.", "title": "Approximations" }, { "paragraph_id": 119, "text": "For arguments that are integer multiples of 1/24, the gamma function can also be evaluated quickly using arithmetic–geometric mean iterations (see particular values of the gamma function).", "title": "Approximations" }, { "paragraph_id": 120, "text": "One author describes the gamma function as \"Arguably, the most common special function, or the least 'special' of them. The other transcendental functions […] are called 'special' because you could conceivably avoid some of them by staying away from many specialized mathematical topics. On the other hand, the gamma function Γ(z) is most difficult to avoid.\"", "title": "Applications" }, { "paragraph_id": 121, "text": "The gamma function finds application in such diverse areas as quantum physics, astrophysics and fluid dynamics. The gamma distribution, which is formulated in terms of the gamma function, is used in statistics to model a wide range of processes; for example, the time between occurrences of earthquakes.", "title": "Applications" }, { "paragraph_id": 122, "text": "The primary reason for the gamma function's usefulness in such contexts is the prevalence of expressions of the type f ( t ) e − g ( t ) {\\displaystyle f(t)e^{-g(t)}} which describe processes that decay exponentially in time or space. Integrals of such expressions can occasionally be solved in terms of the gamma function when no elementary solution exists. For example, if f is a power function and g is a linear function, a simple change of variables u := a ⋅ t {\\displaystyle u:=a\\cdot t} gives the evaluation", "title": "Applications" }, { "paragraph_id": 123, "text": "The fact that the integration is performed along the entire positive real line might signify that the gamma function describes the cumulation of a time-dependent process that continues indefinitely, or the value might be the total of a distribution in an infinite space.", "title": "Applications" }, { "paragraph_id": 124, "text": "It is of course frequently useful to take limits of integration other than 0 and ∞ to describe the cumulation of a finite process, in which case the ordinary gamma function is no longer a solution; the solution is then called an incomplete gamma function. (The ordinary gamma function, obtained by integrating across the entire positive real line, is sometimes called the complete gamma function for contrast.)", "title": "Applications" }, { "paragraph_id": 125, "text": "An important category of exponentially decaying functions is that of Gaussian functions", "title": "Applications" }, { "paragraph_id": 126, "text": "and integrals thereof, such as the error function. There are many interrelations between these functions and the gamma function; notably, the factor π {\\displaystyle {\\sqrt {\\pi }}} obtained by evaluating Γ ( 1 2 ) {\\textstyle \\Gamma \\left({\\frac {1}{2}}\\right)} is the \"same\" as that found in the normalizing factor of the error function and the normal distribution.", "title": "Applications" }, { "paragraph_id": 127, "text": "The integrals we have discussed so far involve transcendental functions, but the gamma function also arises from integrals of purely algebraic functions. In particular, the arc lengths of ellipses and of the lemniscate, which are curves defined by algebraic equations, are given by elliptic integrals that in special cases can be evaluated in terms of the gamma function. The gamma function can also be used to calculate \"volume\" and \"area\" of n-dimensional hyperspheres.", "title": "Applications" }, { "paragraph_id": 128, "text": "The gamma function's ability to generalize factorial products immediately leads to applications in many areas of mathematics; in combinatorics, and by extension in areas such as probability theory and the calculation of power series. Many expressions involving products of successive integers can be written as some combination of factorials, the most important example perhaps being that of the binomial coefficient", "title": "Applications" }, { "paragraph_id": 129, "text": "The example of binomial coefficients motivates why the properties of the gamma function when extended to negative numbers are natural. A binomial coefficient gives the number of ways to choose k elements from a set of n elements; if k > n, there are of course no ways. If k > n, (n − k)! is the factorial of a negative integer and hence infinite if we use the gamma function definition of factorials—dividing by infinity gives the expected value of 0.", "title": "Applications" }, { "paragraph_id": 130, "text": "We can replace the factorial by a gamma function to extend any such formula to the complex numbers. Generally, this works for any product wherein each factor is a rational function of the index variable, by factoring the rational function into linear expressions. If P and Q are monic polynomials of degree m and n with respective roots p1, …, pm and q1, …, qn, we have", "title": "Applications" }, { "paragraph_id": 131, "text": "If we have a way to calculate the gamma function numerically, it is a breeze to calculate numerical values of such products. The number of gamma functions in the right-hand side depends only on the degree of the polynomials, so it does not matter whether b − a equals 5 or 10. By taking the appropriate limits, the equation can also be made to hold even when the left-hand product contains zeros or poles.", "title": "Applications" }, { "paragraph_id": 132, "text": "By taking limits, certain rational products with infinitely many factors can be evaluated in terms of the gamma function as well. Due to the Weierstrass factorization theorem, analytic functions can be written as infinite products, and these can sometimes be represented as finite products or quotients of the gamma function. We have already seen one striking example: the reflection formula essentially represents the sine function as the product of two gamma functions. Starting from this formula, the exponential function as well as all the trigonometric and hyperbolic functions can be expressed in terms of the gamma function.", "title": "Applications" }, { "paragraph_id": 133, "text": "More functions yet, including the hypergeometric function and special cases thereof, can be represented by means of complex contour integrals of products and quotients of the gamma function, called Mellin–Barnes integrals.", "title": "Applications" }, { "paragraph_id": 134, "text": "An application of the gamma function is the study of the Riemann zeta function. A fundamental property of the Riemann zeta function is its functional equation:", "title": "Applications" }, { "paragraph_id": 135, "text": "Among other things, this provides an explicit form for the analytic continuation of the zeta function to a meromorphic function in the complex plane and leads to an immediate proof that the zeta function has infinitely many so-called \"trivial\" zeros on the real line. Borwein et al. call this formula \"one of the most beautiful findings in mathematics\". Another contender for that title might be", "title": "Applications" }, { "paragraph_id": 136, "text": "Both formulas were derived by Bernhard Riemann in his seminal 1859 paper \"Ueber die Anzahl der Primzahlen unter einer gegebenen Größe\" (\"On the Number of Primes Less Than a Given Magnitude\"), one of the milestones in the development of analytic number theory—the branch of mathematics that studies prime numbers using the tools of mathematical analysis. Factorial numbers, considered as discrete objects, are an important concept in classical number theory because they contain many prime factors, but Riemann found a use for their continuous extension that arguably turned out to be even more important.", "title": "Applications" }, { "paragraph_id": 137, "text": "The gamma function has caught the interest of some of the most prominent mathematicians of all time. Its history, notably documented by Philip J. Davis in an article that won him the 1963 Chauvenet Prize, reflects many of the major developments within mathematics since the 18th century. In the words of Davis, \"each generation has found something of interest to say about the gamma function. Perhaps the next generation will also.\"", "title": "History" }, { "paragraph_id": 138, "text": "The problem of extending the factorial to non-integer arguments was apparently first considered by Daniel Bernoulli and Christian Goldbach in the 1720s. In particular, in a letter from Bernoulli to Goldbach dated 6 October 1729 Bernoulli introduced the product representation", "title": "History" }, { "paragraph_id": 139, "text": "which is well defined for real values of x other than the negative integers.", "title": "History" }, { "paragraph_id": 140, "text": "Leonard Euler later gave two different definitions: the first was not his integral but an infinite product that is well defined for all complex numbers n other than the negative integers,", "title": "History" }, { "paragraph_id": 141, "text": "of which he informed Goldbach in a letter dated 13 October 1729. He wrote to Goldbach again on 8 January 1730, to announce his discovery of the integral representation", "title": "History" }, { "paragraph_id": 142, "text": "which is valid when the real part of the complex number n is strictly greater than −1 (i.e., ℜ ( n ) > − 1 {\\displaystyle \\Re (n)>-1} ). By the change of variables t = −ln s, this becomes the familiar Euler integral. Euler published his results in the paper \"De progressionibus transcendentibus seu quarum termini generales algebraice dari nequeunt\" (\"On transcendental progressions, that is, those whose general terms cannot be given algebraically\"), submitted to the St. Petersburg Academy on 28 November 1729. Euler further discovered some of the gamma function's important functional properties, including the reflection formula.", "title": "History" }, { "paragraph_id": 143, "text": "James Stirling, a contemporary of Euler, also attempted to find a continuous expression for the factorial and came up with what is now known as Stirling's formula. Although Stirling's formula gives a good estimate of n!, also for non-integers, it does not provide the exact value. Extensions of his formula that correct the error were given by Stirling himself and by Jacques Philippe Marie Binet.", "title": "History" }, { "paragraph_id": 144, "text": "Carl Friedrich Gauss rewrote Euler's product as", "title": "History" }, { "paragraph_id": 145, "text": "and used this formula to discover new properties of the gamma function. Although Euler was a pioneer in the theory of complex variables, he does not appear to have considered the factorial of a complex number, as instead Gauss first did. Gauss also proved the multiplication theorem of the gamma function and investigated the connection between the gamma function and elliptic integrals.", "title": "History" }, { "paragraph_id": 146, "text": "Karl Weierstrass further established the role of the gamma function in complex analysis, starting from yet another product representation,", "title": "History" }, { "paragraph_id": 147, "text": "where γ is the Euler–Mascheroni constant. Weierstrass originally wrote his product as one for 1/Γ, in which case it is taken over the function's zeros rather than its poles. Inspired by this result, he proved what is known as the Weierstrass factorization theorem—that any entire function can be written as a product over its zeros in the complex plane; a generalization of the fundamental theorem of algebra.", "title": "History" }, { "paragraph_id": 148, "text": "The name gamma function and the symbol Γ were introduced by Adrien-Marie Legendre around 1811; Legendre also rewrote Euler's integral definition in its modern form. Although the symbol is an upper-case Greek gamma, there is no accepted standard for whether the function name should be written \"gamma function\" or \"Gamma function\" (some authors simply write \"Γ-function\"). The alternative \"pi function\" notation Π(z) = z! due to Gauss is sometimes encountered in older literature, but Legendre's notation is dominant in modern works.", "title": "History" }, { "paragraph_id": 149, "text": "It is justified to ask why we distinguish between the \"ordinary factorial\" and the gamma function by using distinct symbols, and particularly why the gamma function should be normalized to Γ(n + 1) = n! instead of simply using \"Γ(n) = n!\". Consider that the notation for exponents, x, has been generalized from integers to complex numbers x without any change. Legendre's motivation for the normalization does not appear to be known, and has been criticized as cumbersome by some (the 20th-century mathematician Cornelius Lanczos, for example, called it \"void of any rationality\" and would instead use z!). Legendre's normalization does simplify some formulae, but complicates others. From a modern point of view, the Legendre normalization of the gamma function is the integral of the additive character e against the multiplicative character x with respect to the Haar measure d x x {\\textstyle {\\frac {dx}{x}}} on the Lie group R. Thus this normalization makes it clearer that the gamma function is a continuous analogue of a Gauss sum.", "title": "History" }, { "paragraph_id": 150, "text": "It is somewhat problematic that a large number of definitions have been given for the gamma function. Although they describe the same function, it is not entirely straightforward to prove the equivalence. Stirling never proved that his extended formula corresponds exactly to Euler's gamma function; a proof was first given by Charles Hermite in 1900. Instead of finding a specialized proof for each formula, it would be desirable to have a general method of identifying the gamma function.", "title": "History" }, { "paragraph_id": 151, "text": "One way to prove would be to find a differential equation that characterizes the gamma function. Most special functions in applied mathematics arise as solutions to differential equations, whose solutions are unique. However, the gamma function does not appear to satisfy any simple differential equation. Otto Hölder proved in 1887 that the gamma function at least does not satisfy any algebraic differential equation by showing that a solution to such an equation could not satisfy the gamma function's recurrence formula, making it a transcendentally transcendental function. This result is known as Hölder's theorem.", "title": "History" }, { "paragraph_id": 152, "text": "A definite and generally applicable characterization of the gamma function was not given until 1922. Harald Bohr and Johannes Mollerup then proved what is known as the Bohr–Mollerup theorem: that the gamma function is the unique solution to the factorial recurrence relation that is positive and logarithmically convex for positive z and whose value at 1 is 1 (a function is logarithmically convex if its logarithm is convex). Another characterisation is given by the Wielandt theorem.", "title": "History" }, { "paragraph_id": 153, "text": "The Bohr–Mollerup theorem is useful because it is relatively easy to prove logarithmic convexity for any of the different formulas used to define the gamma function. Taking things further, instead of defining the gamma function by any particular formula, we can choose the conditions of the Bohr–Mollerup theorem as the definition, and then pick any formula we like that satisfies the conditions as a starting point for studying the gamma function. This approach was used by the Bourbaki group.", "title": "History" }, { "paragraph_id": 154, "text": "Borwein & Corless review three centuries of work on the gamma function.", "title": "History" }, { "paragraph_id": 155, "text": "Although the gamma function can be calculated virtually as easily as any mathematically simpler function with a modern computer—even with a programmable pocket calculator—this was of course not always the case. Until the mid-20th century, mathematicians relied on hand-made tables; in the case of the gamma function, notably a table computed by Gauss in 1813 and one computed by Legendre in 1825.", "title": "History" }, { "paragraph_id": 156, "text": "Tables of complex values of the gamma function, as well as hand-drawn graphs, were given in Tables of Functions With Formulas and Curves by Jahnke and Emde [de], first published in Germany in 1909. According to Michael Berry, \"the publication in J&E of a three-dimensional graph showing the poles of the gamma function in the complex plane acquired an almost iconic status.\"", "title": "History" }, { "paragraph_id": 157, "text": "There was in fact little practical need for anything but real values of the gamma function until the 1930s, when applications for the complex gamma function were discovered in theoretical physics. As electronic computers became available for the production of tables in the 1950s, several extensive tables for the complex gamma function were published to meet the demand, including a table accurate to 12 decimal places from the U.S. National Bureau of Standards.", "title": "History" }, { "paragraph_id": 158, "text": "Double-precision floating-point implementations of the gamma function and its logarithm are now available in most scientific computing software and special functions libraries, for example TK Solver, Matlab, GNU Octave, and the GNU Scientific Library. The gamma function was also added to the C standard library (math.h). Arbitrary-precision implementations are available in most computer algebra systems, such as Mathematica and Maple. PARI/GP, MPFR and MPFUN contain free arbitrary-precision implementations. In some software calculators, e.g. Windows Calculator and GNOME Calculator, the factorial function returns Γ(x + 1) when the input x is a non-integer value.", "title": "History" } ]
In mathematics, the gamma function is one commonly used extension of the factorial function to complex numbers. The gamma function is defined for all complex numbers except the non-positive integers. For every positive integer n, Derived by Daniel Bernoulli, for complex numbers with a positive real part, the gamma function is defined via a convergent improper integral: The gamma function then is defined as the analytic continuation of this integral function to a meromorphic function that is holomorphic in the whole complex plane except zero and the negative integers, where the function has simple poles. The gamma function has no zeros, so the reciprocal gamma function 1/Γ(z) is an entire function. In fact, the gamma function corresponds to the Mellin transform of the negative exponential function: Other extensions of the factorial function do exist, but the gamma function is the most popular and useful. It is a component in various probability-distribution functions, and as such it is applicable in the fields of probability and statistics, as well as combinatorics.
2001-07-17T16:54:26Z
2023-12-14T17:20:55Z
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https://en.wikipedia.org/wiki/Gamma_function
12,317
Georges Braque
Georges Braque (/brɑːk, bræk/ BRA(H)K, French: [ʒɔʁʒ bʁak]; 13 May 1882 – 31 August 1963) was a major 20th-century French painter, collagist, draughtsman, printmaker and sculptor. His most notable contributions were in his alliance with Fauvism from 1905, and the role he played in the development of Cubism. Braque's work between 1908 and 1912 is closely associated with that of his colleague Pablo Picasso. Their respective Cubist works were indistinguishable for many years, yet the quiet nature of Braque was partially eclipsed by the fame and notoriety of Picasso. Georges Braque was born on 13 May 1882 in Argenteuil, Val-d'Oise. He grew up in Le Havre and trained to be a house painter and decorator like his father and grandfather. However, he also studied artistic painting during evenings at the École supérieure d'art et design Le Havre-Rouen, previously known as the École supérieure des Arts in Le Havre, from about 1897 to 1899. In Paris, he apprenticed with a decorator and was awarded his certificate in 1902. The next year, he attended the Académie Humbert, also in Paris, and painted there until 1904. It was here that he met Marie Laurencin and Francis Picabia. Braque's earliest works were impressionistic, but after seeing the work exhibited by the artistic group known as the "Fauves" (Beasts) in 1905, he adopted a Fauvist style. The Fauves, a group that included Henri Matisse and André Derain among others, used brilliant colors to represent emotional response. Braque worked most closely with the artists Raoul Dufy and Othon Friesz, who shared Braque's hometown of Le Havre, to develop a somewhat more subdued Fauvist style. In 1906, Braque traveled with Friesz to L'Estaque, to Antwerp, and home to Le Havre to paint. In May 1907, he successfully exhibited works of the Fauve style in the Salon des Indépendants. The same year, Braque's style began a slow evolution as he became influenced by Paul Cézanne who had died in 1906 and whose works were exhibited in Paris for the first time in a large-scale, museum-like retrospective in September 1907. The 1907 Cézanne retrospective at the Salon d'Automne greatly affected the avant-garde artists of Paris, resulting in the advent of Cubism. Braque's paintings of 1908–1912 reflected his new interest in geometry and simultaneous perspective. He conducted an intense study of the effects of light and perspective and the technical means that painters use to represent these effects, seeming to question the most standard of artistic conventions. In his village scenes, for example, Braque frequently reduced an architectural structure to a geometric form approximating a cube, yet rendered its shading so that it looked both flat and three-dimensional by fragmenting the image. He showed this in the painting Houses at l'Estaque. Beginning in 1909, Braque began to work closely with Pablo Picasso who had been developing a similar proto-Cubist style of painting. At the time, Pablo Picasso was influenced by Gauguin, Cézanne, African masks and Iberian sculpture while Braque was interested mainly in developing Cézanne's ideas of multiple perspectives. “A comparison of the works of Picasso and Braque during 1908 reveals that the effect of his encounter with Picasso was more to accelerate and intensify Braque’s exploration of Cézanne’s ideas, rather than to divert his thinking in any essential way.” Braque's essential subject is the ordinary objects he has known practically forever. Picasso celebrates animation, while Braque celebrates contemplation. Thus, the invention of Cubism was a joint effort between Picasso and Braque, then residents of Montmartre, Paris. These artists were the style's main innovators. After meeting in October or November 1907, Braque and Picasso, in particular, began working on the development of Cubism in 1908. Both artists produced paintings of monochromatic color and complex patterns of faceted form, now termed Analytic Cubism. A decisive time of its development occurred during the summer of 1911, when Georges Braque and Pablo Picasso painted side by side in Céret in the French Pyrenees, each artist producing paintings that are difficult—sometimes virtually impossible—to distinguish from those of the other. In 1912, they began to experiment with collage and Braque invented the papier collé technique. On 14 November 1908, the French art critic Louis Vauxcelles, in his review of Georges Braque's exhibition at Kahnweiler's gallery called Braque a daring man who despises form, "reducing everything, places and a figures and houses, to geometric schemas, to cubes". Vauxcelles, on 25 March 1909, used the terms "bizarreries cubiques" (cubic oddities) after seeing a painting by Braque at the Salon des Indépendants. The term 'Cubism', first pronounced in 1911 with reference to artists exhibiting at the Salon des Indépendants, quickly gained wide use but Picasso and Braque did not adopt it initially. Art historian Ernst Gombrich described Cubism as "the most radical attempt to stamp out ambiguity and to enforce one reading of the picture—that of a man-made construction, a colored canvas." The Cubist style spread quickly throughout Paris and then Europe. The two artists' productive collaboration continued and they worked closely together until the beginning of World War I in 1914, when Braque enlisted with the French Army. In May 1915, Braque received a severe head injury in battle at Carency and suffered temporary blindness. He was trepanned, and required a long period of recuperation. The things that Picasso and I said to one another during those years will never be said again, and even if they were, no one would understand them anymore. It was like being roped together on a mountain. Braque resumed painting in late 1916. Working alone, he began to moderate the harsh abstraction of cubism. He developed a more personal style characterized by brilliant color, textured surfaces, and—after his relocation to the Normandy seacoast—the reappearance of the human figure. He painted many still life subjects during this time, maintaining his emphasis on structure. One example of this is his 1943 work Blue Guitar, which hangs in the Allen Memorial Art Museum. During his recovery he became a close friend of the cubist artist Juan Gris. He continued to work during the remainder of his life, producing a considerable number of paintings, graphics, and sculptures. Braque, along with Matisse, is credited for introducing Pablo Picasso to Fernand Mourlot, and most of the lithographs and book illustrations he himself created during the 1940s and '50s were produced at the Mourlot Studios. In 1952–53 he also produced The Birds, a ceiling painting for a room in the Louvre. In 1962 Braque worked with master printmaker Aldo Crommelynck to create his series of etchings and aquatints titled L’Ordre des Oiseaux (The Order of Birds), which was accompanied by the poet Saint-John Perse's text. Braque died on 31 August 1963 in Paris. He is buried in the cemetery of the Church of St. Valery in Varengeville-sur-Mer, Normandy whose windows he designed. Braque's work is in most major museums throughout the world. Braque believed that an artist experienced beauty "… in terms of volume, of line, of mass, of weight, and through that beauty [he] interpret[s] [his] subjective impression...” He described "objects shattered into fragments... [as] a way of getting closest to the object...Fragmentation helped me to establish space and movement in space”. He adopted a monochromatic and neutral color palette in the belief that such a palette would emphasize the subject matter. Although Braque began his career painting landscapes, during 1908 he, alongside Picasso, discovered the advantages of painting still lifes instead. Braque explained that he “... began to concentrate on still lifes, because in the still-life you have a tactile, I might almost say a manual space... This answered to the hankering I have always had to touch things and not merely see them... In tactile space you measure the distance separating you from the object, whereas in visual space you measure the distance separating things from each other. This is what led me, long ago, from landscape to still-life” A still life was also more accessible, in relation to perspective, than landscape, and permitted the artist to see the multiple perspectives of the object. Braque's early interest in still lifes revived during the 1930s. During the period between the wars, Braque exhibited a freer, more relaxed style of Cubism, intensifying his color use and a looser rendering of objects. However, he still remained committed to the cubist method of simultaneous perspective and fragmentation. In contrast to Picasso, who continuously reinvented his style of painting, producing both representational and cubist images, and incorporating surrealist ideas into his work, Braque continued in the Cubist style, producing luminous, other-worldly still life and figure compositions. By the time of his death in 1963, he was regarded as one of the elder statesmen of the School of Paris, and of modern art. On 20 May 2010, the Musée d'Art Moderne de la Ville de Paris reported the overnight theft of five paintings from its collection. The paintings taken were Le pigeon aux petits pois (The Pigeon with the Peas) by Pablo Picasso, La Pastorale by Henri Matisse, L'Olivier Près de l'Estaque (Olive Tree near Estaque) by Georges Braque, La Femme à l'Éventail [fr] (Woman with a Fan) by Amedeo Modigliani and Nature Morte aux Chandeliers (Still Life with Chandeliers) by Fernand Léger and were valued at €100 million ( $123 million USD). A window had been smashed and CCTV footage showed a masked man taking the paintings. Authorities believe the thief acted alone. The man carefully removed the paintings from their frames, which he left behind.
[ { "paragraph_id": 0, "text": "Georges Braque (/brɑːk, bræk/ BRA(H)K, French: [ʒɔʁʒ bʁak]; 13 May 1882 – 31 August 1963) was a major 20th-century French painter, collagist, draughtsman, printmaker and sculptor. His most notable contributions were in his alliance with Fauvism from 1905, and the role he played in the development of Cubism. Braque's work between 1908 and 1912 is closely associated with that of his colleague Pablo Picasso. Their respective Cubist works were indistinguishable for many years, yet the quiet nature of Braque was partially eclipsed by the fame and notoriety of Picasso.", "title": "" }, { "paragraph_id": 1, "text": "Georges Braque was born on 13 May 1882 in Argenteuil, Val-d'Oise. He grew up in Le Havre and trained to be a house painter and decorator like his father and grandfather. However, he also studied artistic painting during evenings at the École supérieure d'art et design Le Havre-Rouen, previously known as the École supérieure des Arts in Le Havre, from about 1897 to 1899. In Paris, he apprenticed with a decorator and was awarded his certificate in 1902. The next year, he attended the Académie Humbert, also in Paris, and painted there until 1904. It was here that he met Marie Laurencin and Francis Picabia.", "title": "Early life" }, { "paragraph_id": 2, "text": "Braque's earliest works were impressionistic, but after seeing the work exhibited by the artistic group known as the \"Fauves\" (Beasts) in 1905, he adopted a Fauvist style. The Fauves, a group that included Henri Matisse and André Derain among others, used brilliant colors to represent emotional response. Braque worked most closely with the artists Raoul Dufy and Othon Friesz, who shared Braque's hometown of Le Havre, to develop a somewhat more subdued Fauvist style. In 1906, Braque traveled with Friesz to L'Estaque, to Antwerp, and home to Le Havre to paint.", "title": "Fauvism" }, { "paragraph_id": 3, "text": "In May 1907, he successfully exhibited works of the Fauve style in the Salon des Indépendants. The same year, Braque's style began a slow evolution as he became influenced by Paul Cézanne who had died in 1906 and whose works were exhibited in Paris for the first time in a large-scale, museum-like retrospective in September 1907. The 1907 Cézanne retrospective at the Salon d'Automne greatly affected the avant-garde artists of Paris, resulting in the advent of Cubism.", "title": "Fauvism" }, { "paragraph_id": 4, "text": "Braque's paintings of 1908–1912 reflected his new interest in geometry and simultaneous perspective. He conducted an intense study of the effects of light and perspective and the technical means that painters use to represent these effects, seeming to question the most standard of artistic conventions. In his village scenes, for example, Braque frequently reduced an architectural structure to a geometric form approximating a cube, yet rendered its shading so that it looked both flat and three-dimensional by fragmenting the image. He showed this in the painting Houses at l'Estaque.", "title": "Cubism" }, { "paragraph_id": 5, "text": "Beginning in 1909, Braque began to work closely with Pablo Picasso who had been developing a similar proto-Cubist style of painting. At the time, Pablo Picasso was influenced by Gauguin, Cézanne, African masks and Iberian sculpture while Braque was interested mainly in developing Cézanne's ideas of multiple perspectives. “A comparison of the works of Picasso and Braque during 1908 reveals that the effect of his encounter with Picasso was more to accelerate and intensify Braque’s exploration of Cézanne’s ideas, rather than to divert his thinking in any essential way.” Braque's essential subject is the ordinary objects he has known practically forever. Picasso celebrates animation, while Braque celebrates contemplation. Thus, the invention of Cubism was a joint effort between Picasso and Braque, then residents of Montmartre, Paris. These artists were the style's main innovators. After meeting in October or November 1907, Braque and Picasso, in particular, began working on the development of Cubism in 1908. Both artists produced paintings of monochromatic color and complex patterns of faceted form, now termed Analytic Cubism.", "title": "Cubism" }, { "paragraph_id": 6, "text": "A decisive time of its development occurred during the summer of 1911, when Georges Braque and Pablo Picasso painted side by side in Céret in the French Pyrenees, each artist producing paintings that are difficult—sometimes virtually impossible—to distinguish from those of the other. In 1912, they began to experiment with collage and Braque invented the papier collé technique.", "title": "Cubism" }, { "paragraph_id": 7, "text": "On 14 November 1908, the French art critic Louis Vauxcelles, in his review of Georges Braque's exhibition at Kahnweiler's gallery called Braque a daring man who despises form, \"reducing everything, places and a figures and houses, to geometric schemas, to cubes\".", "title": "Cubism" }, { "paragraph_id": 8, "text": "Vauxcelles, on 25 March 1909, used the terms \"bizarreries cubiques\" (cubic oddities) after seeing a painting by Braque at the Salon des Indépendants.", "title": "Cubism" }, { "paragraph_id": 9, "text": "The term 'Cubism', first pronounced in 1911 with reference to artists exhibiting at the Salon des Indépendants, quickly gained wide use but Picasso and Braque did not adopt it initially. Art historian Ernst Gombrich described Cubism as \"the most radical attempt to stamp out ambiguity and to enforce one reading of the picture—that of a man-made construction, a colored canvas.\" The Cubist style spread quickly throughout Paris and then Europe.", "title": "Cubism" }, { "paragraph_id": 10, "text": "The two artists' productive collaboration continued and they worked closely together until the beginning of World War I in 1914, when Braque enlisted with the French Army. In May 1915, Braque received a severe head injury in battle at Carency and suffered temporary blindness. He was trepanned, and required a long period of recuperation.", "title": "Cubism" }, { "paragraph_id": 11, "text": "The things that Picasso and I said to one another during those years will never be said again, and even if they were, no one would understand them anymore. It was like being roped together on a mountain.", "title": "Cubism" }, { "paragraph_id": 12, "text": "Braque resumed painting in late 1916. Working alone, he began to moderate the harsh abstraction of cubism. He developed a more personal style characterized by brilliant color, textured surfaces, and—after his relocation to the Normandy seacoast—the reappearance of the human figure. He painted many still life subjects during this time, maintaining his emphasis on structure. One example of this is his 1943 work Blue Guitar, which hangs in the Allen Memorial Art Museum. During his recovery he became a close friend of the cubist artist Juan Gris.", "title": "Later work" }, { "paragraph_id": 13, "text": "He continued to work during the remainder of his life, producing a considerable number of paintings, graphics, and sculptures. Braque, along with Matisse, is credited for introducing Pablo Picasso to Fernand Mourlot, and most of the lithographs and book illustrations he himself created during the 1940s and '50s were produced at the Mourlot Studios. In 1952–53 he also produced The Birds, a ceiling painting for a room in the Louvre. In 1962 Braque worked with master printmaker Aldo Crommelynck to create his series of etchings and aquatints titled L’Ordre des Oiseaux (The Order of Birds), which was accompanied by the poet Saint-John Perse's text.", "title": "Later work" }, { "paragraph_id": 14, "text": "Braque died on 31 August 1963 in Paris. He is buried in the cemetery of the Church of St. Valery in Varengeville-sur-Mer, Normandy whose windows he designed. Braque's work is in most major museums throughout the world.", "title": "Later work" }, { "paragraph_id": 15, "text": "Braque believed that an artist experienced beauty \"… in terms of volume, of line, of mass, of weight, and through that beauty [he] interpret[s] [his] subjective impression...” He described \"objects shattered into fragments... [as] a way of getting closest to the object...Fragmentation helped me to establish space and movement in space”. He adopted a monochromatic and neutral color palette in the belief that such a palette would emphasize the subject matter.", "title": "Style" }, { "paragraph_id": 16, "text": "Although Braque began his career painting landscapes, during 1908 he, alongside Picasso, discovered the advantages of painting still lifes instead. Braque explained that he “... began to concentrate on still lifes, because in the still-life you have a tactile, I might almost say a manual space... This answered to the hankering I have always had to touch things and not merely see them... In tactile space you measure the distance separating you from the object, whereas in visual space you measure the distance separating things from each other. This is what led me, long ago, from landscape to still-life” A still life was also more accessible, in relation to perspective, than landscape, and permitted the artist to see the multiple perspectives of the object. Braque's early interest in still lifes revived during the 1930s.", "title": "Style" }, { "paragraph_id": 17, "text": "During the period between the wars, Braque exhibited a freer, more relaxed style of Cubism, intensifying his color use and a looser rendering of objects. However, he still remained committed to the cubist method of simultaneous perspective and fragmentation. In contrast to Picasso, who continuously reinvented his style of painting, producing both representational and cubist images, and incorporating surrealist ideas into his work, Braque continued in the Cubist style, producing luminous, other-worldly still life and figure compositions. By the time of his death in 1963, he was regarded as one of the elder statesmen of the School of Paris, and of modern art.", "title": "Style" }, { "paragraph_id": 18, "text": "On 20 May 2010, the Musée d'Art Moderne de la Ville de Paris reported the overnight theft of five paintings from its collection. The paintings taken were Le pigeon aux petits pois (The Pigeon with the Peas) by Pablo Picasso, La Pastorale by Henri Matisse, L'Olivier Près de l'Estaque (Olive Tree near Estaque) by Georges Braque, La Femme à l'Éventail [fr] (Woman with a Fan) by Amedeo Modigliani and Nature Morte aux Chandeliers (Still Life with Chandeliers) by Fernand Léger and were valued at €100 million ( $123 million USD). A window had been smashed and CCTV footage showed a masked man taking the paintings. Authorities believe the thief acted alone. The man carefully removed the paintings from their frames, which he left behind.", "title": "2010 theft" } ]
Georges Braque was a major 20th-century French painter, collagist, draughtsman, printmaker and sculptor. His most notable contributions were in his alliance with Fauvism from 1905, and the role he played in the development of Cubism. Braque's work between 1908 and 1912 is closely associated with that of his colleague Pablo Picasso. Their respective Cubist works were indistinguishable for many years, yet the quiet nature of Braque was partially eclipsed by the fame and notoriety of Picasso.
2001-06-28T17:03:35Z
2023-11-25T21:16:45Z
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https://en.wikipedia.org/wiki/Georges_Braque
12,318
Gilbert Cesbron
Gilbert Cesbron (13 January 1913, Paris – 12 August 1979, Paris) was a French novelist. Gilbert Cesbron (13 January 1913, Paris – 12 August 1979, Paris) was a French novelist. Born in Paris, Cesbron attended what is now known as Lycée Condorcet. In 1944 he published his first novel, Les innocents de Paris ("The Innocent of Paris"), in Switzerland. He first achieved wide public acclaim with the publication of Notre prison est un royaume ("Our Prison is a Kingdom") in 1948 and Il est minuit, docteur Schweitzer ("It is midnight, Doctor Schweitzer") in 1950. In his works Cesbron tended to illustrate and describe relevant social topics such as juvenile delinquency in Chiens perdus sans collier ("Lost Dogs Without Collars"), violence in Entre chiens et loups ("Between Dogs and Wolves"), euthanasia in Il est plus tard que tu ne penses ("It is Later than You Think") and working priests in Les Saints vont en enfer ("Saints go to Hell"). In 1955 Cesbron's book Chiens perdus sans collier, the story of an orphan boy and a benevolent judge, was made into a movie [fr] starring Jean Gabin and Robert Dalban. He died on 12 August 1979 at his home at 126 Boulevard Saint-Germain in the 6th arrondissement of Paris. He is buried in Bourré, Loir-et-Cher. His widow, Dominique, died in 2003.
[ { "paragraph_id": 0, "text": "Gilbert Cesbron (13 January 1913, Paris – 12 August 1979, Paris) was a French novelist.", "title": "" }, { "paragraph_id": 1, "text": "Gilbert Cesbron (13 January 1913, Paris – 12 August 1979, Paris) was a French novelist. Born in Paris, Cesbron attended what is now known as Lycée Condorcet. In 1944 he published his first novel, Les innocents de Paris (\"The Innocent of Paris\"), in Switzerland. He first achieved wide public acclaim with the publication of Notre prison est un royaume (\"Our Prison is a Kingdom\") in 1948 and Il est minuit, docteur Schweitzer (\"It is midnight, Doctor Schweitzer\") in 1950.", "title": "Biography" }, { "paragraph_id": 2, "text": "In his works Cesbron tended to illustrate and describe relevant social topics such as juvenile delinquency in Chiens perdus sans collier (\"Lost Dogs Without Collars\"), violence in Entre chiens et loups (\"Between Dogs and Wolves\"), euthanasia in Il est plus tard que tu ne penses (\"It is Later than You Think\") and working priests in Les Saints vont en enfer (\"Saints go to Hell\").", "title": "Biography" }, { "paragraph_id": 3, "text": "In 1955 Cesbron's book Chiens perdus sans collier, the story of an orphan boy and a benevolent judge, was made into a movie [fr] starring Jean Gabin and Robert Dalban.", "title": "Biography" }, { "paragraph_id": 4, "text": "He died on 12 August 1979 at his home at 126 Boulevard Saint-Germain in the 6th arrondissement of Paris. He is buried in Bourré, Loir-et-Cher. His widow, Dominique, died in 2003.", "title": "Biography" } ]
Gilbert Cesbron was a French novelist.
2001-06-28T17:07:33Z
2023-10-06T18:10:36Z
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https://en.wikipedia.org/wiki/Gilbert_Cesbron
12,323
GNU Compiler Collection
The GNU Compiler Collection (GCC) is an optimizing compiler produced by the GNU Project supporting various programming languages, hardware architectures and operating systems. The Free Software Foundation (FSF) distributes GCC as free software under the GNU General Public License (GNU GPL). GCC is a key component of the GNU toolchain and the standard compiler for most projects related to GNU and the Linux kernel. With roughly 15 million lines of code in 2019, GCC is one of the biggest free programs in existence. It has played an important role in the growth of free software, as both a tool and an example. When it was first released in 1987 by Richard Stallman, GCC 1.0 was named the GNU C Compiler since it only handled the C programming language. It was extended to compile C++ in December of that year. Front ends were later developed for Objective-C, Objective-C++, Fortran, Ada, D, Go and Rust, among others. The OpenMP and OpenACC specifications are also supported in the C and C++ compilers. GCC has been ported to more platforms and instruction set architectures than any other compiler, and is widely deployed as a tool in the development of both free and proprietary software. GCC is also available for many embedded systems, including ARM-based and Power ISA-based chips. As well as being the official compiler of the GNU operating system, GCC has been adopted as the standard compiler by many other modern Unix-like computer operating systems, including most Linux distributions. Most BSD family operating systems also switched to GCC shortly after its release, although since then, FreeBSD, OpenBSD and Apple macOS have moved to the Clang compiler, largely due to licensing reasons. GCC can also compile code for Windows, Android, iOS, Solaris, HP-UX, AIX and DOS. In late 1983, in an effort to bootstrap the GNU operating system, Richard Stallman asked Andrew S. Tanenbaum, the author of the Amsterdam Compiler Kit (also known as the Free University Compiler Kit) for permission to use that software for GNU. When Tanenbaum advised him that the compiler was not free, and that only the university was free, Stallman decided to work on a different compiler. His initial plan was to rewrite an existing compiler from Lawrence Livermore National Laboratory from Pastel to C with some help from Len Tower and others. Stallman wrote a new C front end for the Livermore compiler, but then realized that it required megabytes of stack space, an impossibility on a 68000 Unix system with only 64 KB, and concluded he would have to write a new compiler from scratch. None of the Pastel compiler code ended up in GCC, though Stallman did use the C front end he had written. GCC was first released March 22, 1987, available by FTP from MIT. Stallman was listed as the author but cited others for their contributions, including Tower for "parts of the parser, RTL generator, RTL definitions, and of the Vax machine description", Jack Davidson and Christopher W. Fraser for the idea of using RTL as an intermediate language, and Paul Rubin for writing most of the preprocessor. Described as the "first free software hit" by Peter H. Salus, the GNU compiler arrived just at the time when Sun Microsystems was unbundling its development tools from its operating system, selling them separately at a higher combined price than the previous bundle, which led many of Sun's users to buy or download GCC instead of the vendor's tools. While Stallman considered GNU Emacs as his main project, by 1990, GCC supported thirteen computer architectures, was outperforming several vendor compilers, and was used commercially by several companies. As GCC was licensed under the GPL, programmers wanting to work in other directions—particularly those writing interfaces for languages other than C—were free to develop their own fork of the compiler, provided they meet the GPL's terms, including its requirements to distribute source code. Multiple forks proved inefficient and unwieldy, however, and the difficulty in getting work accepted by the official GCC project was greatly frustrating for many, as the project favored stability over new features. The FSF kept such close control on what was added to the official version of GCC 2.x (developed since 1992) that GCC was used as one example of the "cathedral" development model in Eric S. Raymond's essay The Cathedral and the Bazaar. In 1997, a group of developers formed the Experimental/Enhanced GNU Compiler System (EGCS) to merge several experimental forks into a single project. The basis of the merger was a development snapshot of GCC (taken around the 2.7.2 and later followed up to 2.8.1 release). Mergers included g77 (Fortran), PGCC (P5 Pentium-optimized GCC), many C++ improvements, and many new architectures and operating system variants. While both projects followed each other's changes closely, EGCS development proved considerably more vigorous, so much so that the FSF officially halted development on their GCC 2.x compiler, blessed EGCS as the official version of GCC, and appointed the EGCS project as the GCC maintainers in April 1999. With the release of GCC 2.95 in July 1999 the two projects were once again united. GCC has since been maintained by a varied group of programmers from around the world under the direction of a steering committee. GCC 3 (2002) removed a front-end for CHILL due to a lack of maintenance. Before version 4.0 the Fortran front end was g77, which only supported FORTRAN 77, but later was dropped in favor of the new GNU Fortran front end that supports Fortran 95 and large parts of Fortran 2003 and Fortran 2008 as well. As of version 4.8, GCC is implemented in C++. Support for Cilk Plus existed from GCC 5 to GCC 7. GCC has been ported to a wide variety of instruction set architectures, and is widely deployed as a tool in the development of both free and proprietary software. GCC is also available for many embedded systems, including Symbian (called gcce), ARM-based, and Power ISA-based chips. The compiler can target a wide variety of platforms, including video game consoles such as the PlayStation 2, Cell SPE of PlayStation 3, and Dreamcast. It has been ported to more kinds of processors and operating systems than any other compiler. As of the 13.1 release, GCC includes front ends for C (gcc), C++ (g++), Objective-C and Objective-C++, Fortran (gfortran), Ada (GNAT), Go (gccgo), D (gdc, since 9.1), and Modula-2 (gm2, since 13.1) programming languages, with the OpenMP and OpenACC parallel language extensions being supported since GCC 5.1. Versions prior to GCC 7 also supported Java (gcj), allowing compilation of Java to native machine code. Regarding language version support for C++ and C, since GCC 11.1 the default target is gnu++17, a superset of C++17, and gnu11, a superset of C11, with strict standard support also available. GCC also provides experimental support for C++20 and the upcoming revision C++23. Third-party front ends exist for many languages, such as Pascal (gpc), Modula-3, and VHDL (GHDL). A few experimental branches exist to support additional languages, such as the GCC UPC compiler for Unified Parallel C or Rust. GCC's external interface follows Unix conventions. Users invoke a language-specific driver program (gcc for C, g++ for C++, etc.), which interprets command arguments, calls the actual compiler, runs the assembler on the output, and then optionally runs the linker to produce a complete executable binary. Each of the language compilers is a separate program that reads source code and outputs machine code. All have a common internal structure. A per-language front end parses the source code in that language and produces an abstract syntax tree ("tree" for short). These are, if necessary, converted to the middle end's input representation, called GENERIC form; the middle end then gradually transforms the program towards its final form. Compiler optimizations and static code analysis techniques (such as FORTIFY_SOURCE, a compiler directive that attempts to discover some buffer overflows) are applied to the code. These work on multiple representations, mostly the architecture-independent GIMPLE representation and the architecture-dependent RTL representation. Finally, machine code is produced using architecture-specific pattern matching originally based on an algorithm of Jack Davidson and Chris Fraser. GCC was written primarily in C except for parts of the Ada front end. The distribution includes the standard libraries for Ada and C++ whose code is mostly written in those languages. On some platforms, the distribution also includes a low-level runtime library, libgcc, written in a combination of machine-independent C and processor-specific machine code, designed primarily to handle arithmetic operations that the target processor cannot perform directly. GCC uses many additional tools in its build, many of which are installed by default by many Unix and Linux distributions (but which, normally, aren't present in Windows installations), including Perl, Flex, Bison, and other common tools. In addition, it currently requires three additional libraries to be present in order to build: GMP, MPC, and MPFR. In May 2010, the GCC steering committee decided to allow use of a C++ compiler to compile GCC. The compiler was intended to be written mostly in C plus a subset of features from C++. In particular, this was decided so that GCC's developers could use the destructors and generics features of C++. In August 2012, the GCC steering committee announced that GCC now uses C++ as its implementation language. This means that to build GCC from sources, a C++ compiler is required that understands ISO/IEC C++03 standard. On May 18, 2020, GCC moved away from ISO/IEC C++03 standard to ISO/IEC C++11 standard (i.e. needed to compile, bootstrap, the compiler itself; by default it however compiles later versions of C++). Each front end uses a parser to produce the abstract syntax tree of a given source file. Due to the syntax tree abstraction, source files of any of the different supported languages can be processed by the same back end. GCC started out using LALR parsers generated with Bison, but gradually switched to hand-written recursive-descent parsers for C++ in 2004, and for C and Objective-C in 2006. As of 2021 all front ends use hand-written recursive-descent parsers. Until GCC 4.0 the tree representation of the program was not fully independent of the processor being targeted. The meaning of a tree was somewhat different for different language front ends, and front ends could provide their own tree codes. This was simplified with the introduction of GENERIC and GIMPLE, two new forms of language-independent trees that were introduced with the advent of GCC 4.0. GENERIC is more complex, based on the GCC 3.x Java front end's intermediate representation. GIMPLE is a simplified GENERIC, in which various constructs are lowered to multiple GIMPLE instructions. The C, C++, and Java front ends produce GENERIC directly in the front end. Other front ends instead have different intermediate representations after parsing and convert these to GENERIC. In either case, the so-called "gimplifier" then converts this more complex form into the simpler SSA-based GIMPLE form that is the common language for a large number of powerful language- and architecture-independent global (function scope) optimizations. GENERIC is an intermediate representation language used as a "middle end" while compiling source code into executable binaries. A subset, called GIMPLE, is targeted by all the front ends of GCC. The middle stage of GCC does all of the code analysis and optimization, working independently of both the compiled language and the target architecture, starting from the GENERIC representation and expanding it to register transfer language (RTL). The GENERIC representation contains only the subset of the imperative programming constructs optimized by the middle end. In transforming the source code to GIMPLE, complex expressions are split into a three-address code using temporary variables. This representation was inspired by the SIMPLE representation proposed in the McCAT compiler by Laurie J. Hendren for simplifying the analysis and optimization of imperative programs. Optimization can occur during any phase of compilation; however, the bulk of optimizations are performed after the syntax and semantic analysis of the front end and before the code generation of the back end; thus a common, though somewhat self-contradictory, name for this part of the compiler is the "middle end." The exact set of GCC optimizations varies from release to release as it develops, but includes the standard algorithms, such as loop optimization, jump threading, common subexpression elimination, instruction scheduling, and so forth. The RTL optimizations are of less importance with the addition of global SSA-based optimizations on GIMPLE trees, as RTL optimizations have a much more limited scope, and have less high-level information. Some of these optimizations performed at this level include dead-code elimination, partial-redundancy elimination, global value numbering, sparse conditional constant propagation, and scalar replacement of aggregates. Array dependence based optimizations such as automatic vectorization and automatic parallelization are also performed. Profile-guided optimization is also possible. The GCC's back end is partly specified by preprocessor macros and functions specific to a target architecture, for instance to define its endianness, word size, and calling conventions. The front part of the back end uses these to help decide RTL generation, so although GCC's RTL is nominally processor-independent, the initial sequence of abstract instructions is already adapted to the target. At any moment, the actual RTL instructions forming the program representation have to comply with the machine description of the target architecture. The machine description file contains RTL patterns, along with operand constraints, and code snippets to output the final assembly. The constraints indicate that a particular RTL pattern might only apply (for example) to certain hardware registers, or (for example) allow immediate operand offsets of only a limited size (e.g. 12, 16, 24, ... bit offsets, etc.). During RTL generation, the constraints for the given target architecture are checked. In order to issue a given snippet of RTL, it must match one (or more) of the RTL patterns in the machine description file, and satisfy the constraints for that pattern; otherwise, it would be impossible to convert the final RTL into machine code. Towards the end of compilation, valid RTL is reduced to a strict form in which each instruction refers to real machine registers and a pattern from the target's machine description file. Forming strict RTL is a complicated task; an important step is register allocation, where real hardware registers are chosen to replace the initially assigned pseudo-registers. This is followed by a "reloading" phase; any pseudo-registers that were not assigned a real hardware register are 'spilled' to the stack, and RTL to perform this spilling is generated. Likewise, offsets that are too large to fit into an actual instruction must be broken up and replaced by RTL sequences that will obey the offset constraints. In the final phase, the machine code is built by calling a small snippet of code, associated with each pattern, to generate the real instructions from the target's instruction set, using the final registers, offsets, and addresses chosen during the reload phase. The assembly-generation snippet may be just a string, in which case a simple string substitution of the registers, offsets, and/or addresses into the string is performed. The assembly-generation snippet may also be a short block of C code, performing some additional work, but ultimately returning a string containing the valid assembly code. The GCC project includes an implementation of the C++ Standard Library called libstdc++, licensed under the GPLv3 License with an exception to link non-GPL applications when sources are built with GCC. Some features of GCC include: The primary supported (and best tested) processor families are 64- and 32-bit ARM, 64- and 32-bit x86_64 and x86 and 64-bit PowerPC and SPARC. GCC target processor families as of version 11.1 include: Lesser-known target processors supported in the standard release have included: Additional processors have been supported by GCC versions maintained separately from the FSF version: The GCJ Java compiler can target either a native machine language architecture or the Java virtual machine's Java bytecode. When retargeting GCC to a new platform, bootstrapping is often used. Motorola 68000, Zilog Z80, and other processors are also targeted in the GCC versions developed for various Texas Instruments, Hewlett Packard, Sharp, and Casio programmable graphing calculators. GCC is licensed under the GNU General Public License version 3. The GCC runtime exception permits compilation of proprietary programs (in addition to free software) with GCC. This does not impact the license terms of GCC source code.
[ { "paragraph_id": 0, "text": "The GNU Compiler Collection (GCC) is an optimizing compiler produced by the GNU Project supporting various programming languages, hardware architectures and operating systems. The Free Software Foundation (FSF) distributes GCC as free software under the GNU General Public License (GNU GPL). GCC is a key component of the GNU toolchain and the standard compiler for most projects related to GNU and the Linux kernel. With roughly 15 million lines of code in 2019, GCC is one of the biggest free programs in existence. It has played an important role in the growth of free software, as both a tool and an example.", "title": "" }, { "paragraph_id": 1, "text": "When it was first released in 1987 by Richard Stallman, GCC 1.0 was named the GNU C Compiler since it only handled the C programming language. It was extended to compile C++ in December of that year. Front ends were later developed for Objective-C, Objective-C++, Fortran, Ada, D, Go and Rust, among others. The OpenMP and OpenACC specifications are also supported in the C and C++ compilers.", "title": "" }, { "paragraph_id": 2, "text": "GCC has been ported to more platforms and instruction set architectures than any other compiler, and is widely deployed as a tool in the development of both free and proprietary software. GCC is also available for many embedded systems, including ARM-based and Power ISA-based chips.", "title": "" }, { "paragraph_id": 3, "text": "As well as being the official compiler of the GNU operating system, GCC has been adopted as the standard compiler by many other modern Unix-like computer operating systems, including most Linux distributions. Most BSD family operating systems also switched to GCC shortly after its release, although since then, FreeBSD, OpenBSD and Apple macOS have moved to the Clang compiler, largely due to licensing reasons. GCC can also compile code for Windows, Android, iOS, Solaris, HP-UX, AIX and DOS.", "title": "" }, { "paragraph_id": 4, "text": "In late 1983, in an effort to bootstrap the GNU operating system, Richard Stallman asked Andrew S. Tanenbaum, the author of the Amsterdam Compiler Kit (also known as the Free University Compiler Kit) for permission to use that software for GNU. When Tanenbaum advised him that the compiler was not free, and that only the university was free, Stallman decided to work on a different compiler. His initial plan was to rewrite an existing compiler from Lawrence Livermore National Laboratory from Pastel to C with some help from Len Tower and others. Stallman wrote a new C front end for the Livermore compiler, but then realized that it required megabytes of stack space, an impossibility on a 68000 Unix system with only 64 KB, and concluded he would have to write a new compiler from scratch. None of the Pastel compiler code ended up in GCC, though Stallman did use the C front end he had written.", "title": "History" }, { "paragraph_id": 5, "text": "GCC was first released March 22, 1987, available by FTP from MIT. Stallman was listed as the author but cited others for their contributions, including Tower for \"parts of the parser, RTL generator, RTL definitions, and of the Vax machine description\", Jack Davidson and Christopher W. Fraser for the idea of using RTL as an intermediate language, and Paul Rubin for writing most of the preprocessor. Described as the \"first free software hit\" by Peter H. Salus, the GNU compiler arrived just at the time when Sun Microsystems was unbundling its development tools from its operating system, selling them separately at a higher combined price than the previous bundle, which led many of Sun's users to buy or download GCC instead of the vendor's tools. While Stallman considered GNU Emacs as his main project, by 1990, GCC supported thirteen computer architectures, was outperforming several vendor compilers, and was used commercially by several companies.", "title": "History" }, { "paragraph_id": 6, "text": "As GCC was licensed under the GPL, programmers wanting to work in other directions—particularly those writing interfaces for languages other than C—were free to develop their own fork of the compiler, provided they meet the GPL's terms, including its requirements to distribute source code. Multiple forks proved inefficient and unwieldy, however, and the difficulty in getting work accepted by the official GCC project was greatly frustrating for many, as the project favored stability over new features. The FSF kept such close control on what was added to the official version of GCC 2.x (developed since 1992) that GCC was used as one example of the \"cathedral\" development model in Eric S. Raymond's essay The Cathedral and the Bazaar.", "title": "History" }, { "paragraph_id": 7, "text": "In 1997, a group of developers formed the Experimental/Enhanced GNU Compiler System (EGCS) to merge several experimental forks into a single project. The basis of the merger was a development snapshot of GCC (taken around the 2.7.2 and later followed up to 2.8.1 release). Mergers included g77 (Fortran), PGCC (P5 Pentium-optimized GCC), many C++ improvements, and many new architectures and operating system variants.", "title": "History" }, { "paragraph_id": 8, "text": "While both projects followed each other's changes closely, EGCS development proved considerably more vigorous, so much so that the FSF officially halted development on their GCC 2.x compiler, blessed EGCS as the official version of GCC, and appointed the EGCS project as the GCC maintainers in April 1999. With the release of GCC 2.95 in July 1999 the two projects were once again united. GCC has since been maintained by a varied group of programmers from around the world under the direction of a steering committee.", "title": "History" }, { "paragraph_id": 9, "text": "GCC 3 (2002) removed a front-end for CHILL due to a lack of maintenance.", "title": "History" }, { "paragraph_id": 10, "text": "Before version 4.0 the Fortran front end was g77, which only supported FORTRAN 77, but later was dropped in favor of the new GNU Fortran front end that supports Fortran 95 and large parts of Fortran 2003 and Fortran 2008 as well.", "title": "History" }, { "paragraph_id": 11, "text": "As of version 4.8, GCC is implemented in C++.", "title": "History" }, { "paragraph_id": 12, "text": "Support for Cilk Plus existed from GCC 5 to GCC 7.", "title": "History" }, { "paragraph_id": 13, "text": "GCC has been ported to a wide variety of instruction set architectures, and is widely deployed as a tool in the development of both free and proprietary software. GCC is also available for many embedded systems, including Symbian (called gcce), ARM-based, and Power ISA-based chips. The compiler can target a wide variety of platforms, including video game consoles such as the PlayStation 2, Cell SPE of PlayStation 3, and Dreamcast. It has been ported to more kinds of processors and operating systems than any other compiler.", "title": "History" }, { "paragraph_id": 14, "text": "As of the 13.1 release, GCC includes front ends for C (gcc), C++ (g++), Objective-C and Objective-C++, Fortran (gfortran), Ada (GNAT), Go (gccgo), D (gdc, since 9.1), and Modula-2 (gm2, since 13.1) programming languages, with the OpenMP and OpenACC parallel language extensions being supported since GCC 5.1. Versions prior to GCC 7 also supported Java (gcj), allowing compilation of Java to native machine code.", "title": "Supported languages" }, { "paragraph_id": 15, "text": "Regarding language version support for C++ and C, since GCC 11.1 the default target is gnu++17, a superset of C++17, and gnu11, a superset of C11, with strict standard support also available. GCC also provides experimental support for C++20 and the upcoming revision C++23.", "title": "Supported languages" }, { "paragraph_id": 16, "text": "Third-party front ends exist for many languages, such as Pascal (gpc), Modula-3, and VHDL (GHDL). A few experimental branches exist to support additional languages, such as the GCC UPC compiler for Unified Parallel C or Rust.", "title": "Supported languages" }, { "paragraph_id": 17, "text": "GCC's external interface follows Unix conventions. Users invoke a language-specific driver program (gcc for C, g++ for C++, etc.), which interprets command arguments, calls the actual compiler, runs the assembler on the output, and then optionally runs the linker to produce a complete executable binary.", "title": "Design" }, { "paragraph_id": 18, "text": "Each of the language compilers is a separate program that reads source code and outputs machine code. All have a common internal structure. A per-language front end parses the source code in that language and produces an abstract syntax tree (\"tree\" for short).", "title": "Design" }, { "paragraph_id": 19, "text": "These are, if necessary, converted to the middle end's input representation, called GENERIC form; the middle end then gradually transforms the program towards its final form. Compiler optimizations and static code analysis techniques (such as FORTIFY_SOURCE, a compiler directive that attempts to discover some buffer overflows) are applied to the code. These work on multiple representations, mostly the architecture-independent GIMPLE representation and the architecture-dependent RTL representation. Finally, machine code is produced using architecture-specific pattern matching originally based on an algorithm of Jack Davidson and Chris Fraser.", "title": "Design" }, { "paragraph_id": 20, "text": "GCC was written primarily in C except for parts of the Ada front end. The distribution includes the standard libraries for Ada and C++ whose code is mostly written in those languages. On some platforms, the distribution also includes a low-level runtime library, libgcc, written in a combination of machine-independent C and processor-specific machine code, designed primarily to handle arithmetic operations that the target processor cannot perform directly.", "title": "Design" }, { "paragraph_id": 21, "text": "GCC uses many additional tools in its build, many of which are installed by default by many Unix and Linux distributions (but which, normally, aren't present in Windows installations), including Perl, Flex, Bison, and other common tools. In addition, it currently requires three additional libraries to be present in order to build: GMP, MPC, and MPFR.", "title": "Design" }, { "paragraph_id": 22, "text": "In May 2010, the GCC steering committee decided to allow use of a C++ compiler to compile GCC. The compiler was intended to be written mostly in C plus a subset of features from C++. In particular, this was decided so that GCC's developers could use the destructors and generics features of C++.", "title": "Design" }, { "paragraph_id": 23, "text": "In August 2012, the GCC steering committee announced that GCC now uses C++ as its implementation language. This means that to build GCC from sources, a C++ compiler is required that understands ISO/IEC C++03 standard.", "title": "Design" }, { "paragraph_id": 24, "text": "On May 18, 2020, GCC moved away from ISO/IEC C++03 standard to ISO/IEC C++11 standard (i.e. needed to compile, bootstrap, the compiler itself; by default it however compiles later versions of C++).", "title": "Design" }, { "paragraph_id": 25, "text": "Each front end uses a parser to produce the abstract syntax tree of a given source file. Due to the syntax tree abstraction, source files of any of the different supported languages can be processed by the same back end. GCC started out using LALR parsers generated with Bison, but gradually switched to hand-written recursive-descent parsers for C++ in 2004, and for C and Objective-C in 2006. As of 2021 all front ends use hand-written recursive-descent parsers.", "title": "Design" }, { "paragraph_id": 26, "text": "Until GCC 4.0 the tree representation of the program was not fully independent of the processor being targeted. The meaning of a tree was somewhat different for different language front ends, and front ends could provide their own tree codes. This was simplified with the introduction of GENERIC and GIMPLE, two new forms of language-independent trees that were introduced with the advent of GCC 4.0. GENERIC is more complex, based on the GCC 3.x Java front end's intermediate representation. GIMPLE is a simplified GENERIC, in which various constructs are lowered to multiple GIMPLE instructions. The C, C++, and Java front ends produce GENERIC directly in the front end. Other front ends instead have different intermediate representations after parsing and convert these to GENERIC.", "title": "Design" }, { "paragraph_id": 27, "text": "In either case, the so-called \"gimplifier\" then converts this more complex form into the simpler SSA-based GIMPLE form that is the common language for a large number of powerful language- and architecture-independent global (function scope) optimizations.", "title": "Design" }, { "paragraph_id": 28, "text": "GENERIC is an intermediate representation language used as a \"middle end\" while compiling source code into executable binaries. A subset, called GIMPLE, is targeted by all the front ends of GCC.", "title": "Design" }, { "paragraph_id": 29, "text": "The middle stage of GCC does all of the code analysis and optimization, working independently of both the compiled language and the target architecture, starting from the GENERIC representation and expanding it to register transfer language (RTL). The GENERIC representation contains only the subset of the imperative programming constructs optimized by the middle end.", "title": "Design" }, { "paragraph_id": 30, "text": "In transforming the source code to GIMPLE, complex expressions are split into a three-address code using temporary variables. This representation was inspired by the SIMPLE representation proposed in the McCAT compiler by Laurie J. Hendren for simplifying the analysis and optimization of imperative programs.", "title": "Design" }, { "paragraph_id": 31, "text": "Optimization can occur during any phase of compilation; however, the bulk of optimizations are performed after the syntax and semantic analysis of the front end and before the code generation of the back end; thus a common, though somewhat self-contradictory, name for this part of the compiler is the \"middle end.\"", "title": "Design" }, { "paragraph_id": 32, "text": "The exact set of GCC optimizations varies from release to release as it develops, but includes the standard algorithms, such as loop optimization, jump threading, common subexpression elimination, instruction scheduling, and so forth. The RTL optimizations are of less importance with the addition of global SSA-based optimizations on GIMPLE trees, as RTL optimizations have a much more limited scope, and have less high-level information.", "title": "Design" }, { "paragraph_id": 33, "text": "Some of these optimizations performed at this level include dead-code elimination, partial-redundancy elimination, global value numbering, sparse conditional constant propagation, and scalar replacement of aggregates. Array dependence based optimizations such as automatic vectorization and automatic parallelization are also performed. Profile-guided optimization is also possible.", "title": "Design" }, { "paragraph_id": 34, "text": "The GCC's back end is partly specified by preprocessor macros and functions specific to a target architecture, for instance to define its endianness, word size, and calling conventions. The front part of the back end uses these to help decide RTL generation, so although GCC's RTL is nominally processor-independent, the initial sequence of abstract instructions is already adapted to the target. At any moment, the actual RTL instructions forming the program representation have to comply with the machine description of the target architecture.", "title": "Design" }, { "paragraph_id": 35, "text": "The machine description file contains RTL patterns, along with operand constraints, and code snippets to output the final assembly. The constraints indicate that a particular RTL pattern might only apply (for example) to certain hardware registers, or (for example) allow immediate operand offsets of only a limited size (e.g. 12, 16, 24, ... bit offsets, etc.). During RTL generation, the constraints for the given target architecture are checked. In order to issue a given snippet of RTL, it must match one (or more) of the RTL patterns in the machine description file, and satisfy the constraints for that pattern; otherwise, it would be impossible to convert the final RTL into machine code.", "title": "Design" }, { "paragraph_id": 36, "text": "Towards the end of compilation, valid RTL is reduced to a strict form in which each instruction refers to real machine registers and a pattern from the target's machine description file. Forming strict RTL is a complicated task; an important step is register allocation, where real hardware registers are chosen to replace the initially assigned pseudo-registers. This is followed by a \"reloading\" phase; any pseudo-registers that were not assigned a real hardware register are 'spilled' to the stack, and RTL to perform this spilling is generated. Likewise, offsets that are too large to fit into an actual instruction must be broken up and replaced by RTL sequences that will obey the offset constraints.", "title": "Design" }, { "paragraph_id": 37, "text": "In the final phase, the machine code is built by calling a small snippet of code, associated with each pattern, to generate the real instructions from the target's instruction set, using the final registers, offsets, and addresses chosen during the reload phase. The assembly-generation snippet may be just a string, in which case a simple string substitution of the registers, offsets, and/or addresses into the string is performed. The assembly-generation snippet may also be a short block of C code, performing some additional work, but ultimately returning a string containing the valid assembly code.", "title": "Design" }, { "paragraph_id": 38, "text": "The GCC project includes an implementation of the C++ Standard Library called libstdc++, licensed under the GPLv3 License with an exception to link non-GPL applications when sources are built with GCC.", "title": "Design" }, { "paragraph_id": 39, "text": "Some features of GCC include:", "title": "Design" }, { "paragraph_id": 40, "text": "The primary supported (and best tested) processor families are 64- and 32-bit ARM, 64- and 32-bit x86_64 and x86 and 64-bit PowerPC and SPARC.", "title": "Architectures" }, { "paragraph_id": 41, "text": "GCC target processor families as of version 11.1 include:", "title": "Architectures" }, { "paragraph_id": 42, "text": "Lesser-known target processors supported in the standard release have included:", "title": "Architectures" }, { "paragraph_id": 43, "text": "Additional processors have been supported by GCC versions maintained separately from the FSF version:", "title": "Architectures" }, { "paragraph_id": 44, "text": "The GCJ Java compiler can target either a native machine language architecture or the Java virtual machine's Java bytecode. When retargeting GCC to a new platform, bootstrapping is often used. Motorola 68000, Zilog Z80, and other processors are also targeted in the GCC versions developed for various Texas Instruments, Hewlett Packard, Sharp, and Casio programmable graphing calculators.", "title": "Architectures" }, { "paragraph_id": 45, "text": "GCC is licensed under the GNU General Public License version 3. The GCC runtime exception permits compilation of proprietary programs (in addition to free software) with GCC. This does not impact the license terms of GCC source code.", "title": "License" } ]
The GNU Compiler Collection (GCC) is an optimizing compiler produced by the GNU Project supporting various programming languages, hardware architectures and operating systems. The Free Software Foundation (FSF) distributes GCC as free software under the GNU General Public License. GCC is a key component of the GNU toolchain and the standard compiler for most projects related to GNU and the Linux kernel. With roughly 15 million lines of code in 2019, GCC is one of the biggest free programs in existence. It has played an important role in the growth of free software, as both a tool and an example. When it was first released in 1987 by Richard Stallman, GCC 1.0 was named the GNU C Compiler since it only handled the C programming language. It was extended to compile C++ in December of that year. Front ends were later developed for Objective-C, Objective-C++, Fortran, Ada, D, Go and Rust, among others. The OpenMP and OpenACC specifications are also supported in the C and C++ compilers. GCC has been ported to more platforms and instruction set architectures than any other compiler, and is widely deployed as a tool in the development of both free and proprietary software. GCC is also available for many embedded systems, including ARM-based and Power ISA-based chips. As well as being the official compiler of the GNU operating system, GCC has been adopted as the standard compiler by many other modern Unix-like computer operating systems, including most Linux distributions. Most BSD family operating systems also switched to GCC shortly after its release, although since then, FreeBSD, OpenBSD and Apple macOS have moved to the Clang compiler, largely due to licensing reasons. GCC can also compile code for Windows, Android, iOS, Solaris, HP-UX, AIX and DOS.
2001-03-27T20:15:06Z
2023-11-08T22:48:30Z
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https://en.wikipedia.org/wiki/GNU_Compiler_Collection
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Galen
Aelius Galenus or Claudius Galenus (Greek: Κλαύδιος Γαληνός; September 129 – 216 AD), often anglicized as Galen (/ˈɡeɪlən/) or Galen of Pergamon, was a Roman Greek physician, surgeon and philosopher. Considered to be one of the most accomplished of all medical researchers of antiquity, Galen influenced the development of various scientific disciplines, including anatomy, physiology, pathology, pharmacology, and neurology, as well as philosophy and logic. The son of Aelius Nicon, a wealthy Greek architect with scholarly interests, Galen received a comprehensive education that prepared him for a successful career as a physician and philosopher. Born in the ancient city of Pergamon (present-day Bergama, Turkey), Galen traveled extensively, exposing himself to a wide variety of medical theories and discoveries before settling in Rome, where he served prominent members of Roman society and eventually was given the position of personal physician to several emperors. Galen's understanding of anatomy and medicine was principally influenced by the then-current theory of the four humors: black bile, yellow bile, blood, and phlegm, as first advanced by the author of On the Nature of Man in the Hippocratic corpus. Galen's views dominated and influenced Western medical science for more than 1,300 years. His anatomical reports were based mainly on the dissection of Barbary apes. However, when he discovered that their facial expressions were too much like those of humans, he switched to other animals, such as pigs. The reason for using animals to discover the human body was due to the fact that, while dissections and vivisections on humans were practised in Alexandria at this time, Galen did not have Imperial permission to perform his own. Galen would encourage his students to go look at dead gladiators or bodies that washed up in order to get better acquainted with the human body. His anatomical reports remained uncontested until 1543, when printed descriptions and illustrations of human dissections were published in the seminal work De humani corporis fabrica by Andreas Vesalius, where Galen's physiological theory was accommodated to these new observations. Galen's theory of the physiology of the circulatory system remained unchallenged until c. 1242, when Ibn al-Nafis published his book Sharh tashrih al-qanun li' Ibn Sina (Commentary on Anatomy in Avicenna's Canon), in which he reported his discovery of pulmonary circulation. Galen saw himself as both a physician and a philosopher, as he wrote in his treatise titled That the Best Physician Is Also a Philosopher. Galen was very interested in the debate between the rationalist and empiricist medical sects, and his use of direct observation, dissection, and vivisection represents a complex middle ground between the extremes of those two viewpoints. Many of his works have been preserved and/or translated from the original Greek, although many were destroyed and some credited to him are believed to be spurious. Although there is some debate over the date of his death, he was no younger than seventy when he died. Galen's Greek name Γαληνός (Galēnós) comes from the adjective γαληνός (galēnós) 'calm'. Galen's Latin name (Aelius or Claudius) implies he had Roman citizenship. Galen describes his early life in On the affections of the mind. He was born in September 129 AD. His father, Aelius Nicon, was a wealthy patrician, an architect and builder, with eclectic interests including philosophy, mathematics, logic, astronomy, agriculture and literature. Galen describes his father as a "highly amiable, just, good and benevolent man". At that time Pergamon (modern-day Bergama, Turkey) was a major cultural and intellectual centre, noted for its library, second only to that in Alexandria, as well as being the site of a large temple to the healing god Asclepius. The city attracted both Stoic and Platonic philosophers, to whom Galen was exposed at age 14. His studies also took in each of the principal philosophical systems of the time, including Aristotelian and Epicurean. His father had planned a traditional career for Galen in philosophy or politics and took care to expose him to literary and philosophical influences. However, Galen states that in around 145 his father had a dream in which the god Asclepius appeared and commanded Nicon to send his son to study medicine. Following his earlier liberal education, Galen at age 16 began his studies at the prestigious local healing temple or asclepeion as a θεραπευτής (therapeutes, or attendant) for four years. There he came under the influence of men like Aeschrion of Pergamon, Stratonicus and Satyrus. Asclepiea functioned as spas or sanitoria to which the sick would come to seek the ministrations of the priesthood. Romans frequented the temple at Pergamon in search of medical relief from illness and disease. It was also the haunt of notable people such as the historian Claudius Charax, the orator Aelius Aristides, the sophist Polemo, and the consul Cuspius Rufinus. Galen's father died in 148, leaving Galen independently wealthy at the age of 19. He then followed the advice he found in Hippocrates' teaching and traveled and studied widely including such destinations as Smyrna (now Izmir), Corinth, Crete, Cilicia (now Çukurova), Cyprus, and finally the great medical school of Alexandria, exposing himself to the various schools of thought in medicine. In 157, aged 28, he returned to Pergamon as physician to the gladiators of the High Priest of Asia, one of the most influential and wealthy men in Asia. Galen claims that the High Priest chose him over other physicians after he eviscerated an ape and challenged other physicians to repair the damage. When they refused, Galen performed the surgery himself and in so doing won the favor of the High Priest of Asia. Over his four years there, he learned the importance of diet, fitness, hygiene, and preventive measures, as well as living anatomy, and the treatment of fractures and severe trauma, referring to their wounds as "windows into the body". Only five deaths among the gladiators occurred while he held the post, compared to sixty in his predecessor's time, a result that is in general ascribed to the attention he paid to their wounds. At the same time he pursued studies in theoretical medicine and philosophy. Galen went to Rome in 162 and made his mark as a practicing physician. His public demonstrations and impatience with alternative views on medicine brought him into conflict with other doctors practicing in the city. When the Peripatetic philosopher Eudemus became ill with quartan fever, Galen felt obliged to treat him "since he was my teacher and I happened to live nearby". He wrote: "I return to the case of Eudemus. He was thoroughly attacked by the three attacks of quartan ague, and the doctors had given him up, as it was now mid-winter." Some Roman physicians criticized Galen for his use of the prognosis in his treatment of Eudemus. This practice conflicted with the then-current standard of care, which relied upon divination and mysticism. Galen retaliated against his detractors by defending his own methods. Garcia-Ballester quotes Galen as saying: "In order to diagnose, one must observe and reason. This was the basis of his criticism of the doctors who proceeded alogos and askeptos." However, Eudemus warned Galen that engaging in conflict with these physicians could lead to his assassination. "Eudemus said this, and more to the same effect; he added that if they were not able to harm me by unscrupulous conduct they would proceed to attempts at poisoning. Among other things he told me that, some ten years before, a young man had come to the city and had given, like me practical demonstrations of the resources of our art; this young man was put to death by poison, together with two servants who accompanied him." When Galen's animosity with the Roman medical practitioners became serious, he feared he might be exiled or poisoned, so he left the city. Rome was engaged in foreign wars in 161; Marcus Aurelius and his colleague Lucius Verus were in the north fighting the Marcomanni. During the autumn of 169 when Roman troops were returning to Aquileia, a great plague broke out, and the emperor summoned Galen back to Rome. He was ordered to accompany Marcus and Verus to Germany as the court physician. The following spring Marcus was persuaded to release Galen after receiving a report that Asclepius was against the project. He was left behind to act as physician to the imperial heir Commodus. It was here in court that Galen wrote extensively on medical subjects. Ironically, Lucius Verus died in 169, and Marcus Aurelius himself died in 180, both victims of the plague. Galen was the physician to Commodus for much of the emperor's life and treated his common illnesses. According to Dio Cassius 72.14.3–4, in about 189, under Commodus' reign, a pestilence occurred which at its height killed 2,000 people a day in Rome. This was most likely the same plague that struck Rome during Marcus Aurelius' reign. Galen was also physician to Septimius Severus during his reign in Rome. He complimented Severus and Caracalla on keeping a supply of drugs for their friends and mentioned three cases in which they had been of use in 198. The Antonine Plague was named after Marcus Aurelius' family name of Antoninus. It was also known as the Plague of Galen and held an important place in medicinal history because of its association with Galen. He had first-hand knowledge of the disease, and was present in Rome when it first struck in 166, and was also present in the winter of 168–69 during an outbreak among troops stationed at Aquileia. He had experience with the epidemic, referring to it as very long lasting, and described its symptoms and his treatment of it. His references to the plague are scattered and brief. Galen was not trying to present a description of the disease so that it could be recognized in future generations; he was more interested in the treatment and physical effects of the disease. For example, in his writings about a young man afflicted with the plague, he concentrated on the treatment of internal and external ulcerations. According to Niebuhr, "this pestilence must have raged with incredible fury; it carried off innumerable victims. The ancient world never recovered from the blow inflicted upon it by the plague that visited it in the reign of M. Aurelius." The mortality rate of the plague was 7–10 percent; the outbreak in 165–168 would have caused approximately 3.5 to 5 million deaths. Otto Seeck believes that over half the population of the empire perished. J. F. Gilliam believes that the Antonine plague probably caused more deaths than any other epidemic during the empire before the mid-3rd century. Although Galen's description is incomplete, it is sufficient to enable a firm identification of the disease as smallpox. Galen notes that the exanthema covered the victim's entire body and was usually black. The exanthem became rough and scabby where there was no ulceration. He states that those who were going to survive developed a black exanthem. According to Galen, it was black because of a remnant of blood putrefied in a fever blister that was pustular. His writings state that raised blisters were present in the Antonine plague, usually in the form of a blistery rash. Galen states that the skin rash was close to the one Thucydides described. Galen describes symptoms of the alimentary tract via a patient's diarrhea and stools. If the stool was very black, the patient died. He says that the amount of black stools varied. It depended on the severity of the intestinal lesions. He observes that in cases where the stool was not black, the black exanthema appeared. Galen describes the symptoms of fever, vomiting, fetid breath, catarrh, cough, and ulceration of the larynx and trachea. Galen continued to work and write in his final years, finishing treatises on drugs and remedies as well as his compendium of diagnostics and therapeutics, which would have much influence as a medical text both in the Latin Middle Ages and Medieval Islam. The 11th-century Suda lexicon states that Galen died at the age of 70, which would place his death in about the year 199. However, there is a reference in Galen's treatise "On Theriac to Piso" (which may, however, be spurious) to events of 204. There are also statements in Arabic sources that he died in Sicily at age 87, after 17 years studying medicine and 70 practicing it, which would mean he died about 216. According to these sources, the tomb of Galenus in Palermo was still well preserved in the tenth century. Nutton believes that "On Theriac to Piso" is genuine, that the Arabic sources are correct, and that the Suda has erroneously interpreted the 70 years of Galen's career in the Arabic tradition as referring to his whole lifespan. Boudon-Millot more or less concurs and favors a date of 216. Galen contributed a substantial amount to the understanding of pathology. Under the Hippocratic bodily humors theory, differences in human moods come as a consequence of imbalances in one of the four bodily fluids: blood, yellow bile, black bile, and phlegm. Galen promoted this theory and the typology of human temperaments. In Galen's view, an imbalance of each humor corresponded with a particular human temperament (blood – sanguine, black bile – melancholic, yellow bile – choleric, and phlegm – phlegmatic). Thus, individuals with sanguine temperaments are extroverted and social; choleric people have energy, passion, and charisma; melancholics are creative, kind, and considerate; and phlegmatic temperaments are characterised by dependability, kindness, and affection. Galen was also a skilled surgeon, operating on human patients. Many of his procedures and techniques would not be used again for centuries, such as the procedures he performed on brains and eyes. To correct cataracts in patients, Galen performed an operation similar to a modern one. Using a needle-shaped instrument, Galen attempted to remove the cataract-affected lens of the eye. His surgical experiments included ligating the arteries of living animals. Although many 20th-century historians have claimed that Galen believed the lens to be in the exact center of the eye, Galen actually understood that the crystalline lens is located in the anterior aspect of the human eye. At first reluctantly but then with increasing vigor, Galen promoted Hippocratic teaching, including venesection and bloodletting, then unknown in Rome. This was sharply criticized by the Erasistrateans, who predicted dire outcomes, believing that it was not blood but pneuma that flowed in the veins. Galen, however, staunchly defended venesection in his three books on the subject and in his demonstrations and public disputations. Galen's work on anatomy remained largely unsurpassed and unchallenged up until the 16th century in Europe. In the middle of the 16th century, the anatomist Andreas Vesalius challenged the anatomical knowledge of Galen by conducting dissections on human cadavers. These investigations allowed Vesalius to refute aspects of Galen's theories regarding anatomy. Galen's interest in human anatomy ran afoul of Roman law that prohibited the dissection of human cadavers since roughly 150 BCE. Because of this restriction, Galen performed anatomical dissections on living (vivisection) and dead animals, mostly focusing on primates. Galen believed that the anatomical structures of these animals closely mirrored those of humans. Galen clarified the anatomy of the trachea and was the first to demonstrate that the larynx generates the voice. In one experiment, Galen used bellows to inflate the lungs of a dead animal. Galen's research on physiology was largely influenced by previous works of philosophers Plato and Aristotle, as well as from the physician Hippocrates. He was one of the first people to use experiments as a method of research for his medical findings. Doing so allowed him to explore various parts of the body and its functions. Among Galen's major contributions to medicine was his work on the circulatory system. He was the first to recognize that there are distinct differences between venous (dark) and arterial (bright) blood. In addition to these discoveries, Galen postulated much more about the nature of the circulatory system. He believed that blood originated in the liver, which follows the teachings of Hippocrates. The liver converted nutrients gathered from ingested food into blood to be used in the circulatory system. The blood created in the liver would eventually flow unidirectionally into the right ventricle of the heart via the great vein. Galen also proposed a theory on how blood receives air from the lungs to be distributed throughout the body. He declared that the venous artery carried air from the lungs into the left ventricle of the heart to mix with created blood from the liver. This same venous artery allowed for an exchange of waste products from the blood back into the lungs to be exhaled. In order to receive air from the lungs in the left ventricle, the new blood needed to get there from the right ventricle. Thus, Galen asserted that there are small holes in the septum dividing the left and right sides of the heart; these holes allowed the blood to pass through easily to receive air and exchange the aforementioned waste products. Although his anatomical experiments on animal models led him to a more complete understanding of the circulatory system, nervous system, respiratory system, and other structures, his work contained scientific errors. Galen believed the circulatory system to consist of two separate one-way systems of distribution, rather than a single unified system of circulation. He believed venous blood to be generated in the liver, from where it was distributed and consumed by all organs of the body. He posited that arterial blood originated in the heart, from where it was distributed and consumed by all organs of the body. The blood was then regenerated in either the liver or the heart, completing the cycle. Galen also believed in the existence of a group of blood vessels he called the rete mirabile in the carotid sinus. Both of these theories of the circulation of blood were later (beginning with works of Ibn al-Nafis published c. 1242) shown to be incorrect. Galen was also a pioneer in research about the human spine. His dissections and vivisections of animals led to key observations that helped him accurately describe the human spine, spinal cord, and vertebral column. Galen also played a major role in the discoveries of the Central Nervous System. He was also able to describe the nerves that emerge from the spine, which is integral to his research about the nervous system. Galen went on to be the first physician to study what happens when the spinal cord is transected on multiple different levels. He worked with pigs and studied their neuroanatomy by severing different nerves either totally or partially to see how it affected the body. He even dealt with diseases affecting the spinal cord and nerves. In his work De motu musculorum, Galen explained the difference between motor and sensory nerves, discussed the concept of muscle tone, and explained the difference between agonists and antagonists. Galen's work on animals led to some inaccuracies, most notably his anatomy of the uterus which largely resembled a dog's. Though incorrect in his studies of human reproduction and reproductive anatomy, he came very close to identifying the ovaries as analogous to the male testes. Reproduction was a controversial topic in Galen's lifetime, as there was much debate over if the male was solely responsible for the seed, or if the woman was also responsible. Through his vivisection practices, Galen also proved that the voice was controlled by the brain. One of the most famous experiments that he recreated in public was the squealing pig: Galen would cut open a pig, and while it was squealing he would tie off the recurrent laryngeal nerve, or vocal cords, showing they controlled the making of sound. He used the same method to tie off the ureters to prove his theories of kidney and bladder function. Galen believed the human body had three interconnected systems that allowed it to work. The first system that he theorized consisted of the brain and the nerves, responsible for thought and sensation. The second theorized system was the heart and the arteries, which Galen believed to be responsible for providing life-giving energy. The last theorized system was the liver and veins, which Galen theorized were responsible for nutrition and growth. Galen also theorized that blood was made in the liver and sent out around the body. One of Galen's major works, On the Doctrines of Hippocrates and Plato, sought to demonstrate the unity of the two subjects and their views. Using their theories, combined with Aristotle's, Galen developed a tripartite soul consisting of similar aspects. He used the same terms as Plato, referring to the three parts as rational, spiritual, and appetitive. Each corresponded to a localized area of the body. The rational soul was in the brain, the spiritual soul was in the heart, and the appetitive soul was in the liver. Galen was the first scientist and philosopher to assign specific parts of the soul to locations in the body because of his extensive background in medicine. This idea is now referred to as localization of function. Galen's assignments were revolutionary for the time period, which set the precedent for future localization theories. Galen believed each part of this tripartite soul controlled specific functions within the body and that the soul, as a whole, contributed to the health of the body, strengthening the "natural functioning capacity of the organ or organs in question". The rational soul controlled higher level cognitive functioning in an organism, for example, making choices or perceiving the world and sending those signals to the brain. He also listed "imagination, memory, recollection, knowledge, thought, consideration, voluntary motion, and sensation" as being found within the rational soul. The functions of "growing or being alive" resided in the spirited soul. The spirited soul also contained our passions, such as anger. These passions were considered to be even stronger than regular emotions, and, as a consequence, more dangerous. The third part of the soul, or the appetitive spirit, controlled the living forces in our body, most importantly blood. The appetitive spirit also regulated the pleasures of the body and was moved by feelings of enjoyment. This third part of the soul is the animalistic, or more natural, side of the soul; it deals with the natural urges of the body and survival instincts. Galen proposed that when the soul is moved by too much enjoyment, it reaches states of "incontinence" and "licentiousness", the inability to willfully cease enjoyment, which was a negative consequence of too much pleasure. In order to unite his theories about the soul and how it operated within the body, he adapted the theory of the pneuma, which he used to explain how the soul operated within its assigned organs, and how those organs, in turn, interacted together. Galen then distinguished the vital pneuma, in the arterial system, from the psychic pneuma, in the brain and nervous system. Galen placed the vital pneuma in the heart and the psychic pneuma (spiritus animalis) within the brain. He conducted many anatomical studies on animals, most famously an ox, to study the transition from vital to psychic pneuma. Although highly criticized for comparing animal anatomy to human anatomy, Galen was convinced that his knowledge was abundant enough in both anatomies to base one on the other. In his treatise On the usefulness of the parts of the body, Galen argued that the perfect suitability of each part of the body to its function indicated the role of an intelligent creator. His creationism was anticipated by the anatomical examples of Socrates and Empedocles. Although the main focus of his work was on medicine, anatomy, and physiology, Galen also wrote about logic and philosophy. His writings were influenced by earlier Greek and Roman thinkers, including Plato, Aristotle, the Stoics, and the Pyrrhonists. Galen was concerned to combine philosophical thought with medical practice, as in his brief work That the Best Physician is also a Philosopher he took aspects from each group and combined them with his original thought. He regarded medicine as an interdisciplinary field that was best practiced by utilizing theory, observation, and experimentation in conjunction. Galen combined his observations of his dissections with Plato's theory about the soul. Plato believed that the body and the soul were separate entities, rivaling the Stoics. Plato proclaimed that the soul is immortal, so it must exist before one is born, beyond the human body. This influenced Galen's thinking that the soul had to be acquired because the soul does not always reside within the human body. Plato's influence in Galen's model showed itself most prominently in what Galen dubbed arterial blood, which is a mixture of nutritious blood from the liver and the vital spirit (the soul) which was attained from the lungs. The vital spirit within this medium was necessary for the body to function and eventually completely absorbed. This process was then repeated indefinitely, according to Galen, so that the body could be replenished with the soul, or the vital spirit. Several schools of thought existed within the medical field during Galen's lifetime, the main two being the Empiricists and Rationalists (also called Dogmatists or Philosophers), with the Methodists being a smaller group. The Empiricists emphasized the importance of physical practice and experimentation or "active learning" in the medical discipline. In direct opposition to the Empiricists were the Rationalists, who valued the study of established teachings in order to create new theories in the name of medical advancements. The Methodists formed somewhat of a middle ground, as they were not as experimental as the Empiricists, nor as theoretical as the Rationalists. The Methodists mainly utilized pure observation, showing greater interest in studying the natural course of ailments than making efforts to find remedies. Galen's education had exposed him to the five major schools of thought (Platonists, Peripatetics, Stoics, Epicureans, Pyrrhonists), with teachers from the Rationalist sect and from the Empiricist sect. Galen was well known for his advancements in medicine and the circulatory system, but he was also concerned with philosophy. He developed his own tripartite soul model following the examples of Plato; some scholars refer to him as a Platonist. Galen developed a theory of personality based on his understanding of fluid circulation in humans, and he believed that there was a physiological basis for mental disorders. Galen connected many of his theories to the pneuma and he opposed the Stoics' definition of and use of the pneuma. The Stoics, according to Galen, failed to give a credible answer for the localization of functions of the psyche, or the mind. Through his use of medicine, he was convinced that he came up with a better answer, the brain. The Stoics only recognized the soul as having one part, which was the rational soul and they claimed it would be found in the heart. Galen, following Plato's idea, came up with two more parts to the soul. Galen also rejected Stoic propositional logic and instead embraced a hypothetical syllogistic which was strongly influenced by the Peripatetics and based on elements of Aristotelian logic. Galen believed there is no sharp distinction between the mental and the physical. This was a controversial argument at the time, and Galen agreed with some Greek philosophical schools in believing that the mind and body were not separate faculties. He believed that this could be scientifically shown. This was where his opposition to the Stoics became most prevalent. Galen proposed organs within the body to be responsible for specific functions. According to Galen, the Stoics' lack of scientific justification discredited their claims of the separateness of mind and body, which is why he spoke so strongly against them. There is an intense scholarly debate about soul-body relations in Galen's psychological writings. In his brief treatise Quod animi mores, Galen says both that the soul "follows" the mixtures of the body, and that the soul is a bodily mixture. Scholars have offered ways of reconciling these claims, arguing for a materialist reading of Galen's philosophy of mind. According to this materialist reading, Galen identifies the soul with the mixtures of the body. Another one of Galen's major works, On the Diagnosis and Cure of the Soul's Passion, discussed how to approach and treat psychological problems. This was Galen's early attempt at what would later be called psychotherapy. His book contained directions on how to provide counsel to those with psychological issues to prompt them to reveal their deepest passions and secrets, and eventually cure them of their mental deficiency. The leading individual, or therapist, had to be a male, preferably of an older, wiser, age, as well as free from the control of the passions. These passions, according to Galen, caused the psychological problems that people experienced. Galen may have produced more work than any author in antiquity, rivaling the quantity of work issued from Augustine of Hippo. So profuse was Galen's output that the surviving texts represent nearly half of all the extant literature from ancient Greece. It has been reported that Galen employed twenty scribes to write down his words. Galen may have written as many as 500 treatises, amounting to some 10 million words. Although his surviving works amount to some 3 million words, this is thought to represent less than a third of his complete writings. In 191, or more likely in 192, a fire in the Temple of Peace destroyed many of his works, in particular treatises on philosophy. Because Galen's works were not translated into Latin in the ancient period, and because of the collapse of the Roman Empire in the West, the study of Galen, along with the Greek medical tradition as a whole, went into decline in Western Europe during the Early Middle Ages, when very few Latin scholars could read Greek. However, in general, Galen and the ancient Greek medical tradition continued to be studied and followed in the Eastern Roman Empire, commonly known as the Byzantine Empire. All of the extant Greek manuscripts of Galen were copied by Byzantine scholars. In the Abbasid period (after 750) Arab Muslims began to be interested in Greek scientific and medical texts for the first time, and had some of Galen's texts translated into Arabic, often by Syrian Christian scholars (see below). As a result, some texts of Galen exist only in Arabic translation, while others exist only in medieval Latin translations of the Arabic. In some cases scholars have even attempted to translate from the Latin or Arabic back into Greek where the original is lost. For some of the ancient sources, such as Herophilus, Galen's account of their work is all that survives. Even in his own time, forgeries and unscrupulous editions of his work were a problem, prompting him to write On His Own Books. Forgeries in Latin, Arabic or Greek continued until the Renaissance. Some of Galen's treatises have appeared under many different titles over the years. Sources are often in obscure and difficult-to-access journals or repositories. Although written in Greek, by convention the works are referred to by Latin titles, and often by merely abbreviations of those. No single authoritative collection of his work exists, and controversy remains as to the authenticity of a number of works attributed to Galen. As a consequence, research on Galen's work is fraught with hazard. Various attempts have been made to classify Galen's vast output. For instance Coxe (1846) lists a Prolegomena, or introductory books, followed by 7 classes of treatise embracing Physiology (28 vols.), Hygiene (12), Aetiology (19), Semeiotics (14), Pharmacy (10), Blood letting (4) and Therapeutics (17), in addition to 4 of aphorisms, and spurious works. The most complete compendium of Galen's writings, surpassing even modern projects like the Corpus Medicorum Graecorum, is the one compiled and translated by Karl Gottlob Kühn of Leipzig between 1821 and 1833. This collection consists of 122 of Galen's treatises, translated from the original Greek into Latin (the text is presented in both languages). Over 20,000 pages in length, it is divided into 22 volumes, with 676 index pages. Many of Galen's works are included in the Thesaurus Linguae Graecae, a digital library of Greek literature started in 1972. Another useful modern source is the French Bibliothèque interuniversitaire de médecine Archived 2014-04-21 at the Wayback Machine (BIUM). In his time, Galen's reputation as both physician and philosopher was legendary, the emperor Marcus Aurelius describing him as "Primum sane medicorum esse, philosophorum autem solum" (first among doctors and unique among philosophers Praen 14: 660). Other contemporary authors in the Greek world confirm this including Theodotus the Shoemaker, Athenaeus and Alexander of Aphrodisias. The 7th-century poet George of Pisida went so far as to refer to Christ as a second and neglected Galen. Galen continued to exert an important influence over the theory and practice of medicine until the mid-17th century in the Byzantine and Arabic worlds and Europe. A few centuries after Galen, Palladius Iatrosophista stated in his commentary on Hippocrates that Hippocrates sowed and Galen reaped. Galen summarized and synthesized the work of his predecessors, and it is in Galen's words (Galenism) that Greek medicine was handed down to subsequent generations, such that Galenism became the means by which Greek medicine was known to the world. Often, this was in the form of restating and reinterpreting, such as in Magnus of Nisibis' 4th-century work on urine, which was in turn translated into Arabic. Yet the full importance of his contributions was not appreciated until long after his death. Galen's rhetoric and prolificity were so powerful as to convey the impression that there was little left to learn. The term Galenism has subsequently taken on both a positive and pejorative meaning as one that transformed medicine in late antiquity yet so dominated subsequent thinking as to stifle further progress. After the collapse of the Western Empire the study of Galen and other Greek works almost disappeared in the Latin West. In contrast, in the predominantly Greek-speaking eastern half of the Roman empire (Byzantium), many commentators of the subsequent centuries, such as Oribasius, physician to the emperor Julian who compiled a Synopsis in the 4th century, preserved and disseminated Galen's works, making them more accessible. Nutton refers to these authors as the "medical refrigerators of antiquity". In late antiquity, medical writing veered increasingly in the direction of the theoretical at the expense of the practical, with many authors merely debating Galenism. Magnus of Nisibis was a pure theorist, as were John of Alexandria and Agnellus of Ravenna with their lectures on Galen's De Sectis. So strong was Galenism that other authors such as Hippocrates began to be seen through Galen's eyes, while his opponents became marginalised and other medical sects such as Asclepiadism slowly disappeared. Greek medicine was part of Greek culture, and Syrian Christians came in contact with it while the Eastern Roman Empire (Byzantium) ruled Syria and western Mesopotamia, regions that were conquered in the 7th century by the Arabs. After 750, these Syrian Christians made the first translations of Galen into Syriac and Arabic. From then on, Galen and the Greek medical tradition in general became assimilated into the medieval and early modern Islamic Middle East. Job of Edessa is said to have translated 36 of Galen's works into Syriac, some of which were later translated into Arabic by Hunain ibn Ishaq. Galen's approach to medicine became and remains influential in the Islamic world. The first major translator of Galen into Arabic was the Arab Christian Hunayn ibn Ishaq. He translated (c. 830–870) 129 works of "Jalinos" into Arabic. Arabic sources, such as Muhammad ibn Zakarīya al-Rāzi (AD 865–925), continue to be the source of discovery of new or relatively inaccessible Galenic writings. One of Hunayn's Arabic translations, Kitab ila Aglooqan fi Shifa al Amrad, which is extant in the Library of Ibn Sina Academy of Medieval Medicine & Sciences, is regarded as a masterpiece of Galen's literary works. A part of the Alexandrian compendium of Galen's work, this 10th-century manuscript comprises two parts that include details regarding various types of fevers (Humyat) and different inflammatory conditions of the body. More important is that it includes details of more than 150 single and compound formulations of both herbal and animal origin. The book provides an insight into understanding the traditions and methods of treatment in the Greek and Roman eras. In addition, this book provides a direct source for the study of more than 150 single and compound drugs used during the Greco-Roman period. As the title of Doubts on Galen by al-Rāzi implies, as well as the writings of physicians such as Ibn Zuhr and Ibn al-Nafis, the works of Galen were not accepted unquestioningly, but as a challengeable basis for further inquiry. A strong emphasis on experimentation and empiricism led to new results and new observations, which were contrasted and combined with those of Galen by writers such as al-Rāzi, Ali ibn Abbas al-Majusi, Abu al-Qasim al-Zahrawi, Ibn Sina (Avicenna), Ibn Zuhr and Ibn al-Nafis. For example, Ibn al-Nafis' discovery of the pulmonary circulation contradicted the Galenic theory on the heart. The influence of Galen's writings, including humorism, remains strong in modern Unani medicine, now closely identified with Islamic culture, and widely practiced from India (where it is officially recognized) to Morocco. Maimonides was influenced by Galen, whom he cited most often in his medical works, and whom he considered to be the greatest physician of all time. In India many Hindu physicians studied Persian and Urdu languages and learnt Galenic medicine. This trend of studies among Hindu physicians began in 17th century and lasted until the early 20th century (Speziale 2018). From the 11th century onwards, Latin translations of Islamic medical texts began to appear in the West, alongside the Salerno school of thought, and were soon incorporated into the curriculum at the universities of Naples and Montpellier. From that time, Galenism took on a new, unquestioned authority, Galen even being referred to as the "Medical Pope of the Middle Ages". Constantine the African was amongst those who translated both Hippocrates and Galen from Arabic. In addition to the more numerous translations of Arabic texts in this period, there were a few translations of Galenic works directly from the Greek, such as Burgundio of Pisa's translation of De complexionibus. Galen's works on anatomy and medicine became the mainstay of the medieval physician's university curriculum, alongside Ibn Sina's The Canon of Medicine, which elaborated on Galen's works. Unlike pagan Rome, Christian Europe did not exercise a universal prohibition of the dissection and autopsy of the human body and such examinations were carried out regularly from at least the 13th century. However, Galen's influence was so great that when dissections discovered anomalies compared with Galen's anatomy, the physicians often tried to fit these into the Galenic system. An example of this is Mondino de Liuzzi, who describes rudimentary blood circulation in his writings but still asserts that the left ventricle should contain air. Some cited these changes as proof that human anatomy had changed since the time of Galen. The most important translator of Galen's works into Latin was Niccolò di Deoprepio da Reggio, who spent several years working on Galen. Niccolò worked at the Angevin Court during the reign of king Robert of Naples. Among Niccolò's translations is a piece from a medical treatise by Galen, of which the original text is lost. The first edition of Galen's complete works in Latin translation was edited by Diomede Bonardo of Brescia and printed at Venice by Filippo Pinzi in 1490. The Renaissance, and the fall of the Byzantine Empire (1453), were accompanied by an influx of Greek scholars and manuscripts to the West, allowing direct comparison between the Arabic commentaries and the original Greek texts of Galen. This New Learning and the Humanist movement, particularly the work of Linacre, promoted literae humaniores including Galen in the Latin scientific canon, De Naturalibus Facultatibus appearing in London in 1523. Debates on medical science now had two traditions, the more conservative Arabian and the liberal Greek. The more extreme liberal movements began to challenge the role of authority in medicine, as exemplified by Paracelsus' symbolically burning the works of Avicenna and Galen at his medical school in Basle. Nevertheless, Galen's pre-eminence amongst the great thinkers of the millennium is exemplified by a 16th-century mural in the refectory of the Great Lavra of Mt Athos. It depicts pagan sages at the foot of the Tree of Jesse, with Galen between the Sibyl and Aristotle. Galenism's final defeat came from a combination of the negativism of Paracelsus and the constructivism of the Italian Renaissance anatomists, such as Vesalius in the 16th century. In the 1530s, the Flemish anatomist and physician Andreas Vesalius took on a project to translate many of Galen's Greek texts into Latin. Vesalius' most famous work, De humani corporis fabrica, was greatly influenced by Galenic writing and form. Seeking to examine critically Galen's methods and outlook, Vesalius turned to human cadaver dissection as a means of verification. Galen's writings were shown by Vesalius to describe details present in monkeys but not in humans, and he demonstrated Galen's limitations through books and hands-on demonstrations despite fierce opposition from orthodox pro-Galenists such as Jacobus Sylvius. Since Galen states that he is using observations of monkeys (human dissection was prohibited) to give an account of what the body looks like, Vesalius could portray himself as using Galen's approach of description of direct observation to create a record of the exact details of the human body, since he worked in a time when human dissection was allowed. Galen argued that monkey anatomy was close enough to humans for physicians to learn anatomy with monkey dissections and then make observations of similar structures in the wounds of their patients, rather than trying to learn anatomy only from wounds in human patients, as would be done by students trained in the Empiricist model. The examinations of Vesalius also disproved medical theories of Aristotle and Mondino de Liuzzi. One of the best known examples of Vesalius' overturning of Galenism was his demonstration that the interventricular septum of the heart was not permeable, as Galen had taught (Nat Fac III xv). However, this had been revealed two years before by Michael Servetus in his fateful "Christianismi restitutio" (1553) with only three copies of the book surviving, but these remaining hidden for decades; the rest were burned shortly after its publication because of persecution of Servetus by religious authorities. Michael Servetus, using the name "Michel de Villeneuve" during his stay in France, was Vesalius' fellow student and the best Galenist at the University of Paris, according to Johann Winter von Andernach, who taught both. In the Galenism of the Renaissance, editions of the Opera Omnia by Galen were very important, beginning from the Aldine Press' editio princeps in Venice in 1525. It was followed in Venice in 1541–1542 by the Giunta. There were fourteen editions of the book from that date until 1625. Just one edition was produced from Lyon between 1548 and 1551. The Lyon edition has commentaries on breathing and blood streaming that correct the work of earlier renowned authors such as Vesalius, Caius, or Janus Cornarius. "Michel De Villeneuve" had contracts with Jean Frellon for that work, and the Servetus scholar-researcher Francisco Javier González Echeverría presented research that became an accepted communication in the International Society for the History of Medicine, which concluded that Michael De Villeneuve (Michael Servetus) is the author of the commentaries of this edition of Frellon, in Lyon. Another convincing case where understanding of the body was extended beyond where Galen had left it came from these demonstrations of the nature of human circulation and the subsequent work of Andrea Cesalpino, Fabricio of Acquapendente and William Harvey. Some Galenic teaching, such as his emphasis on bloodletting as a remedy for many ailments, however, remained influential until well into the 19th century. Galenic scholarship remains an intense and vibrant field, following renewed interest in his work, dating from the German encyclopedia Realencyclopädie der Classischen Altertumswissenschaft. Copies of his works translated by Robert M. Green are held at the National Library of Medicine in Bethesda, Maryland. In 2018, the University of Basel discovered that a mysterious Greek papyrus with mirror writing on both sides, which was at the collection of Basilius Amerbach, a professor of jurisprudence at the University of Basel in the 16th century, is an unknown medical document of Galen or an unknown commentary on his work. The medical text describes the phenomenon of "hysterical apnea'.
[ { "paragraph_id": 0, "text": "Aelius Galenus or Claudius Galenus (Greek: Κλαύδιος Γαληνός; September 129 – 216 AD), often anglicized as Galen (/ˈɡeɪlən/) or Galen of Pergamon, was a Roman Greek physician, surgeon and philosopher. Considered to be one of the most accomplished of all medical researchers of antiquity, Galen influenced the development of various scientific disciplines, including anatomy, physiology, pathology, pharmacology, and neurology, as well as philosophy and logic.", "title": "" }, { "paragraph_id": 1, "text": "The son of Aelius Nicon, a wealthy Greek architect with scholarly interests, Galen received a comprehensive education that prepared him for a successful career as a physician and philosopher. Born in the ancient city of Pergamon (present-day Bergama, Turkey), Galen traveled extensively, exposing himself to a wide variety of medical theories and discoveries before settling in Rome, where he served prominent members of Roman society and eventually was given the position of personal physician to several emperors.", "title": "" }, { "paragraph_id": 2, "text": "Galen's understanding of anatomy and medicine was principally influenced by the then-current theory of the four humors: black bile, yellow bile, blood, and phlegm, as first advanced by the author of On the Nature of Man in the Hippocratic corpus. Galen's views dominated and influenced Western medical science for more than 1,300 years. His anatomical reports were based mainly on the dissection of Barbary apes. However, when he discovered that their facial expressions were too much like those of humans, he switched to other animals, such as pigs. The reason for using animals to discover the human body was due to the fact that, while dissections and vivisections on humans were practised in Alexandria at this time, Galen did not have Imperial permission to perform his own. Galen would encourage his students to go look at dead gladiators or bodies that washed up in order to get better acquainted with the human body. His anatomical reports remained uncontested until 1543, when printed descriptions and illustrations of human dissections were published in the seminal work De humani corporis fabrica by Andreas Vesalius, where Galen's physiological theory was accommodated to these new observations. Galen's theory of the physiology of the circulatory system remained unchallenged until c. 1242, when Ibn al-Nafis published his book Sharh tashrih al-qanun li' Ibn Sina (Commentary on Anatomy in Avicenna's Canon), in which he reported his discovery of pulmonary circulation.", "title": "" }, { "paragraph_id": 3, "text": "Galen saw himself as both a physician and a philosopher, as he wrote in his treatise titled That the Best Physician Is Also a Philosopher. Galen was very interested in the debate between the rationalist and empiricist medical sects, and his use of direct observation, dissection, and vivisection represents a complex middle ground between the extremes of those two viewpoints. Many of his works have been preserved and/or translated from the original Greek, although many were destroyed and some credited to him are believed to be spurious. Although there is some debate over the date of his death, he was no younger than seventy when he died.", "title": "" }, { "paragraph_id": 4, "text": "Galen's Greek name Γαληνός (Galēnós) comes from the adjective γαληνός (galēnós) 'calm'. Galen's Latin name (Aelius or Claudius) implies he had Roman citizenship.", "title": "Biography" }, { "paragraph_id": 5, "text": "Galen describes his early life in On the affections of the mind. He was born in September 129 AD. His father, Aelius Nicon, was a wealthy patrician, an architect and builder, with eclectic interests including philosophy, mathematics, logic, astronomy, agriculture and literature. Galen describes his father as a \"highly amiable, just, good and benevolent man\". At that time Pergamon (modern-day Bergama, Turkey) was a major cultural and intellectual centre, noted for its library, second only to that in Alexandria, as well as being the site of a large temple to the healing god Asclepius. The city attracted both Stoic and Platonic philosophers, to whom Galen was exposed at age 14. His studies also took in each of the principal philosophical systems of the time, including Aristotelian and Epicurean. His father had planned a traditional career for Galen in philosophy or politics and took care to expose him to literary and philosophical influences. However, Galen states that in around 145 his father had a dream in which the god Asclepius appeared and commanded Nicon to send his son to study medicine.", "title": "Biography" }, { "paragraph_id": 6, "text": "Following his earlier liberal education, Galen at age 16 began his studies at the prestigious local healing temple or asclepeion as a θεραπευτής (therapeutes, or attendant) for four years. There he came under the influence of men like Aeschrion of Pergamon, Stratonicus and Satyrus. Asclepiea functioned as spas or sanitoria to which the sick would come to seek the ministrations of the priesthood. Romans frequented the temple at Pergamon in search of medical relief from illness and disease. It was also the haunt of notable people such as the historian Claudius Charax, the orator Aelius Aristides, the sophist Polemo, and the consul Cuspius Rufinus.", "title": "Biography" }, { "paragraph_id": 7, "text": "Galen's father died in 148, leaving Galen independently wealthy at the age of 19. He then followed the advice he found in Hippocrates' teaching and traveled and studied widely including such destinations as Smyrna (now Izmir), Corinth, Crete, Cilicia (now Çukurova), Cyprus, and finally the great medical school of Alexandria, exposing himself to the various schools of thought in medicine. In 157, aged 28, he returned to Pergamon as physician to the gladiators of the High Priest of Asia, one of the most influential and wealthy men in Asia. Galen claims that the High Priest chose him over other physicians after he eviscerated an ape and challenged other physicians to repair the damage. When they refused, Galen performed the surgery himself and in so doing won the favor of the High Priest of Asia. Over his four years there, he learned the importance of diet, fitness, hygiene, and preventive measures, as well as living anatomy, and the treatment of fractures and severe trauma, referring to their wounds as \"windows into the body\". Only five deaths among the gladiators occurred while he held the post, compared to sixty in his predecessor's time, a result that is in general ascribed to the attention he paid to their wounds. At the same time he pursued studies in theoretical medicine and philosophy.", "title": "Biography" }, { "paragraph_id": 8, "text": "Galen went to Rome in 162 and made his mark as a practicing physician. His public demonstrations and impatience with alternative views on medicine brought him into conflict with other doctors practicing in the city. When the Peripatetic philosopher Eudemus became ill with quartan fever, Galen felt obliged to treat him \"since he was my teacher and I happened to live nearby\". He wrote: \"I return to the case of Eudemus. He was thoroughly attacked by the three attacks of quartan ague, and the doctors had given him up, as it was now mid-winter.\" Some Roman physicians criticized Galen for his use of the prognosis in his treatment of Eudemus. This practice conflicted with the then-current standard of care, which relied upon divination and mysticism. Galen retaliated against his detractors by defending his own methods. Garcia-Ballester quotes Galen as saying: \"In order to diagnose, one must observe and reason. This was the basis of his criticism of the doctors who proceeded alogos and askeptos.\"", "title": "Biography" }, { "paragraph_id": 9, "text": "However, Eudemus warned Galen that engaging in conflict with these physicians could lead to his assassination. \"Eudemus said this, and more to the same effect; he added that if they were not able to harm me by unscrupulous conduct they would proceed to attempts at poisoning. Among other things he told me that, some ten years before, a young man had come to the city and had given, like me practical demonstrations of the resources of our art; this young man was put to death by poison, together with two servants who accompanied him.\" When Galen's animosity with the Roman medical practitioners became serious, he feared he might be exiled or poisoned, so he left the city.", "title": "Biography" }, { "paragraph_id": 10, "text": "Rome was engaged in foreign wars in 161; Marcus Aurelius and his colleague Lucius Verus were in the north fighting the Marcomanni. During the autumn of 169 when Roman troops were returning to Aquileia, a great plague broke out, and the emperor summoned Galen back to Rome. He was ordered to accompany Marcus and Verus to Germany as the court physician. The following spring Marcus was persuaded to release Galen after receiving a report that Asclepius was against the project. He was left behind to act as physician to the imperial heir Commodus. It was here in court that Galen wrote extensively on medical subjects. Ironically, Lucius Verus died in 169, and Marcus Aurelius himself died in 180, both victims of the plague.", "title": "Biography" }, { "paragraph_id": 11, "text": "Galen was the physician to Commodus for much of the emperor's life and treated his common illnesses. According to Dio Cassius 72.14.3–4, in about 189, under Commodus' reign, a pestilence occurred which at its height killed 2,000 people a day in Rome. This was most likely the same plague that struck Rome during Marcus Aurelius' reign. Galen was also physician to Septimius Severus during his reign in Rome. He complimented Severus and Caracalla on keeping a supply of drugs for their friends and mentioned three cases in which they had been of use in 198.", "title": "Biography" }, { "paragraph_id": 12, "text": "The Antonine Plague was named after Marcus Aurelius' family name of Antoninus. It was also known as the Plague of Galen and held an important place in medicinal history because of its association with Galen. He had first-hand knowledge of the disease, and was present in Rome when it first struck in 166, and was also present in the winter of 168–69 during an outbreak among troops stationed at Aquileia. He had experience with the epidemic, referring to it as very long lasting, and described its symptoms and his treatment of it. His references to the plague are scattered and brief. Galen was not trying to present a description of the disease so that it could be recognized in future generations; he was more interested in the treatment and physical effects of the disease. For example, in his writings about a young man afflicted with the plague, he concentrated on the treatment of internal and external ulcerations. According to Niebuhr, \"this pestilence must have raged with incredible fury; it carried off innumerable victims. The ancient world never recovered from the blow inflicted upon it by the plague that visited it in the reign of M. Aurelius.\" The mortality rate of the plague was 7–10 percent; the outbreak in 165–168 would have caused approximately 3.5 to 5 million deaths. Otto Seeck believes that over half the population of the empire perished. J. F. Gilliam believes that the Antonine plague probably caused more deaths than any other epidemic during the empire before the mid-3rd century. Although Galen's description is incomplete, it is sufficient to enable a firm identification of the disease as smallpox.", "title": "Biography" }, { "paragraph_id": 13, "text": "Galen notes that the exanthema covered the victim's entire body and was usually black. The exanthem became rough and scabby where there was no ulceration. He states that those who were going to survive developed a black exanthem. According to Galen, it was black because of a remnant of blood putrefied in a fever blister that was pustular. His writings state that raised blisters were present in the Antonine plague, usually in the form of a blistery rash. Galen states that the skin rash was close to the one Thucydides described. Galen describes symptoms of the alimentary tract via a patient's diarrhea and stools. If the stool was very black, the patient died. He says that the amount of black stools varied. It depended on the severity of the intestinal lesions. He observes that in cases where the stool was not black, the black exanthema appeared. Galen describes the symptoms of fever, vomiting, fetid breath, catarrh, cough, and ulceration of the larynx and trachea.", "title": "Biography" }, { "paragraph_id": 14, "text": "Galen continued to work and write in his final years, finishing treatises on drugs and remedies as well as his compendium of diagnostics and therapeutics, which would have much influence as a medical text both in the Latin Middle Ages and Medieval Islam.", "title": "Biography" }, { "paragraph_id": 15, "text": "The 11th-century Suda lexicon states that Galen died at the age of 70, which would place his death in about the year 199. However, there is a reference in Galen's treatise \"On Theriac to Piso\" (which may, however, be spurious) to events of 204. There are also statements in Arabic sources that he died in Sicily at age 87, after 17 years studying medicine and 70 practicing it, which would mean he died about 216. According to these sources, the tomb of Galenus in Palermo was still well preserved in the tenth century. Nutton believes that \"On Theriac to Piso\" is genuine, that the Arabic sources are correct, and that the Suda has erroneously interpreted the 70 years of Galen's career in the Arabic tradition as referring to his whole lifespan. Boudon-Millot more or less concurs and favors a date of 216.", "title": "Biography" }, { "paragraph_id": 16, "text": "Galen contributed a substantial amount to the understanding of pathology. Under the Hippocratic bodily humors theory, differences in human moods come as a consequence of imbalances in one of the four bodily fluids: blood, yellow bile, black bile, and phlegm. Galen promoted this theory and the typology of human temperaments. In Galen's view, an imbalance of each humor corresponded with a particular human temperament (blood – sanguine, black bile – melancholic, yellow bile – choleric, and phlegm – phlegmatic). Thus, individuals with sanguine temperaments are extroverted and social; choleric people have energy, passion, and charisma; melancholics are creative, kind, and considerate; and phlegmatic temperaments are characterised by dependability, kindness, and affection.", "title": "Medicine" }, { "paragraph_id": 17, "text": "Galen was also a skilled surgeon, operating on human patients. Many of his procedures and techniques would not be used again for centuries, such as the procedures he performed on brains and eyes. To correct cataracts in patients, Galen performed an operation similar to a modern one. Using a needle-shaped instrument, Galen attempted to remove the cataract-affected lens of the eye. His surgical experiments included ligating the arteries of living animals. Although many 20th-century historians have claimed that Galen believed the lens to be in the exact center of the eye, Galen actually understood that the crystalline lens is located in the anterior aspect of the human eye.", "title": "Medicine" }, { "paragraph_id": 18, "text": "At first reluctantly but then with increasing vigor, Galen promoted Hippocratic teaching, including venesection and bloodletting, then unknown in Rome. This was sharply criticized by the Erasistrateans, who predicted dire outcomes, believing that it was not blood but pneuma that flowed in the veins. Galen, however, staunchly defended venesection in his three books on the subject and in his demonstrations and public disputations. Galen's work on anatomy remained largely unsurpassed and unchallenged up until the 16th century in Europe. In the middle of the 16th century, the anatomist Andreas Vesalius challenged the anatomical knowledge of Galen by conducting dissections on human cadavers. These investigations allowed Vesalius to refute aspects of Galen's theories regarding anatomy.", "title": "Medicine" }, { "paragraph_id": 19, "text": "Galen's interest in human anatomy ran afoul of Roman law that prohibited the dissection of human cadavers since roughly 150 BCE. Because of this restriction, Galen performed anatomical dissections on living (vivisection) and dead animals, mostly focusing on primates. Galen believed that the anatomical structures of these animals closely mirrored those of humans. Galen clarified the anatomy of the trachea and was the first to demonstrate that the larynx generates the voice. In one experiment, Galen used bellows to inflate the lungs of a dead animal. Galen's research on physiology was largely influenced by previous works of philosophers Plato and Aristotle, as well as from the physician Hippocrates. He was one of the first people to use experiments as a method of research for his medical findings. Doing so allowed him to explore various parts of the body and its functions.", "title": "Medicine" }, { "paragraph_id": 20, "text": "Among Galen's major contributions to medicine was his work on the circulatory system. He was the first to recognize that there are distinct differences between venous (dark) and arterial (bright) blood. In addition to these discoveries, Galen postulated much more about the nature of the circulatory system. He believed that blood originated in the liver, which follows the teachings of Hippocrates. The liver converted nutrients gathered from ingested food into blood to be used in the circulatory system. The blood created in the liver would eventually flow unidirectionally into the right ventricle of the heart via the great vein. Galen also proposed a theory on how blood receives air from the lungs to be distributed throughout the body. He declared that the venous artery carried air from the lungs into the left ventricle of the heart to mix with created blood from the liver. This same venous artery allowed for an exchange of waste products from the blood back into the lungs to be exhaled. In order to receive air from the lungs in the left ventricle, the new blood needed to get there from the right ventricle. Thus, Galen asserted that there are small holes in the septum dividing the left and right sides of the heart; these holes allowed the blood to pass through easily to receive air and exchange the aforementioned waste products. Although his anatomical experiments on animal models led him to a more complete understanding of the circulatory system, nervous system, respiratory system, and other structures, his work contained scientific errors. Galen believed the circulatory system to consist of two separate one-way systems of distribution, rather than a single unified system of circulation. He believed venous blood to be generated in the liver, from where it was distributed and consumed by all organs of the body. He posited that arterial blood originated in the heart, from where it was distributed and consumed by all organs of the body. The blood was then regenerated in either the liver or the heart, completing the cycle. Galen also believed in the existence of a group of blood vessels he called the rete mirabile in the carotid sinus. Both of these theories of the circulation of blood were later (beginning with works of Ibn al-Nafis published c. 1242) shown to be incorrect.", "title": "Medicine" }, { "paragraph_id": 21, "text": "Galen was also a pioneer in research about the human spine. His dissections and vivisections of animals led to key observations that helped him accurately describe the human spine, spinal cord, and vertebral column. Galen also played a major role in the discoveries of the Central Nervous System. He was also able to describe the nerves that emerge from the spine, which is integral to his research about the nervous system. Galen went on to be the first physician to study what happens when the spinal cord is transected on multiple different levels. He worked with pigs and studied their neuroanatomy by severing different nerves either totally or partially to see how it affected the body. He even dealt with diseases affecting the spinal cord and nerves. In his work De motu musculorum, Galen explained the difference between motor and sensory nerves, discussed the concept of muscle tone, and explained the difference between agonists and antagonists.", "title": "Medicine" }, { "paragraph_id": 22, "text": "Galen's work on animals led to some inaccuracies, most notably his anatomy of the uterus which largely resembled a dog's. Though incorrect in his studies of human reproduction and reproductive anatomy, he came very close to identifying the ovaries as analogous to the male testes. Reproduction was a controversial topic in Galen's lifetime, as there was much debate over if the male was solely responsible for the seed, or if the woman was also responsible.", "title": "Medicine" }, { "paragraph_id": 23, "text": "Through his vivisection practices, Galen also proved that the voice was controlled by the brain. One of the most famous experiments that he recreated in public was the squealing pig: Galen would cut open a pig, and while it was squealing he would tie off the recurrent laryngeal nerve, or vocal cords, showing they controlled the making of sound. He used the same method to tie off the ureters to prove his theories of kidney and bladder function. Galen believed the human body had three interconnected systems that allowed it to work. The first system that he theorized consisted of the brain and the nerves, responsible for thought and sensation. The second theorized system was the heart and the arteries, which Galen believed to be responsible for providing life-giving energy. The last theorized system was the liver and veins, which Galen theorized were responsible for nutrition and growth. Galen also theorized that blood was made in the liver and sent out around the body.", "title": "Medicine" }, { "paragraph_id": 24, "text": "One of Galen's major works, On the Doctrines of Hippocrates and Plato, sought to demonstrate the unity of the two subjects and their views. Using their theories, combined with Aristotle's, Galen developed a tripartite soul consisting of similar aspects. He used the same terms as Plato, referring to the three parts as rational, spiritual, and appetitive. Each corresponded to a localized area of the body. The rational soul was in the brain, the spiritual soul was in the heart, and the appetitive soul was in the liver. Galen was the first scientist and philosopher to assign specific parts of the soul to locations in the body because of his extensive background in medicine. This idea is now referred to as localization of function. Galen's assignments were revolutionary for the time period, which set the precedent for future localization theories.", "title": "Medicine" }, { "paragraph_id": 25, "text": "Galen believed each part of this tripartite soul controlled specific functions within the body and that the soul, as a whole, contributed to the health of the body, strengthening the \"natural functioning capacity of the organ or organs in question\". The rational soul controlled higher level cognitive functioning in an organism, for example, making choices or perceiving the world and sending those signals to the brain. He also listed \"imagination, memory, recollection, knowledge, thought, consideration, voluntary motion, and sensation\" as being found within the rational soul. The functions of \"growing or being alive\" resided in the spirited soul. The spirited soul also contained our passions, such as anger. These passions were considered to be even stronger than regular emotions, and, as a consequence, more dangerous. The third part of the soul, or the appetitive spirit, controlled the living forces in our body, most importantly blood. The appetitive spirit also regulated the pleasures of the body and was moved by feelings of enjoyment. This third part of the soul is the animalistic, or more natural, side of the soul; it deals with the natural urges of the body and survival instincts. Galen proposed that when the soul is moved by too much enjoyment, it reaches states of \"incontinence\" and \"licentiousness\", the inability to willfully cease enjoyment, which was a negative consequence of too much pleasure.", "title": "Medicine" }, { "paragraph_id": 26, "text": "In order to unite his theories about the soul and how it operated within the body, he adapted the theory of the pneuma, which he used to explain how the soul operated within its assigned organs, and how those organs, in turn, interacted together. Galen then distinguished the vital pneuma, in the arterial system, from the psychic pneuma, in the brain and nervous system. Galen placed the vital pneuma in the heart and the psychic pneuma (spiritus animalis) within the brain. He conducted many anatomical studies on animals, most famously an ox, to study the transition from vital to psychic pneuma. Although highly criticized for comparing animal anatomy to human anatomy, Galen was convinced that his knowledge was abundant enough in both anatomies to base one on the other. In his treatise On the usefulness of the parts of the body, Galen argued that the perfect suitability of each part of the body to its function indicated the role of an intelligent creator. His creationism was anticipated by the anatomical examples of Socrates and Empedocles.", "title": "Medicine" }, { "paragraph_id": 27, "text": "Although the main focus of his work was on medicine, anatomy, and physiology, Galen also wrote about logic and philosophy. His writings were influenced by earlier Greek and Roman thinkers, including Plato, Aristotle, the Stoics, and the Pyrrhonists. Galen was concerned to combine philosophical thought with medical practice, as in his brief work That the Best Physician is also a Philosopher he took aspects from each group and combined them with his original thought. He regarded medicine as an interdisciplinary field that was best practiced by utilizing theory, observation, and experimentation in conjunction.", "title": "Philosophy" }, { "paragraph_id": 28, "text": "Galen combined his observations of his dissections with Plato's theory about the soul. Plato believed that the body and the soul were separate entities, rivaling the Stoics. Plato proclaimed that the soul is immortal, so it must exist before one is born, beyond the human body. This influenced Galen's thinking that the soul had to be acquired because the soul does not always reside within the human body. Plato's influence in Galen's model showed itself most prominently in what Galen dubbed arterial blood, which is a mixture of nutritious blood from the liver and the vital spirit (the soul) which was attained from the lungs. The vital spirit within this medium was necessary for the body to function and eventually completely absorbed. This process was then repeated indefinitely, according to Galen, so that the body could be replenished with the soul, or the vital spirit.", "title": "Philosophy" }, { "paragraph_id": 29, "text": "Several schools of thought existed within the medical field during Galen's lifetime, the main two being the Empiricists and Rationalists (also called Dogmatists or Philosophers), with the Methodists being a smaller group. The Empiricists emphasized the importance of physical practice and experimentation or \"active learning\" in the medical discipline. In direct opposition to the Empiricists were the Rationalists, who valued the study of established teachings in order to create new theories in the name of medical advancements. The Methodists formed somewhat of a middle ground, as they were not as experimental as the Empiricists, nor as theoretical as the Rationalists. The Methodists mainly utilized pure observation, showing greater interest in studying the natural course of ailments than making efforts to find remedies. Galen's education had exposed him to the five major schools of thought (Platonists, Peripatetics, Stoics, Epicureans, Pyrrhonists), with teachers from the Rationalist sect and from the Empiricist sect.", "title": "Philosophy" }, { "paragraph_id": 30, "text": "Galen was well known for his advancements in medicine and the circulatory system, but he was also concerned with philosophy. He developed his own tripartite soul model following the examples of Plato; some scholars refer to him as a Platonist. Galen developed a theory of personality based on his understanding of fluid circulation in humans, and he believed that there was a physiological basis for mental disorders. Galen connected many of his theories to the pneuma and he opposed the Stoics' definition of and use of the pneuma.", "title": "Philosophy" }, { "paragraph_id": 31, "text": "The Stoics, according to Galen, failed to give a credible answer for the localization of functions of the psyche, or the mind. Through his use of medicine, he was convinced that he came up with a better answer, the brain. The Stoics only recognized the soul as having one part, which was the rational soul and they claimed it would be found in the heart. Galen, following Plato's idea, came up with two more parts to the soul.", "title": "Philosophy" }, { "paragraph_id": 32, "text": "Galen also rejected Stoic propositional logic and instead embraced a hypothetical syllogistic which was strongly influenced by the Peripatetics and based on elements of Aristotelian logic.", "title": "Philosophy" }, { "paragraph_id": 33, "text": "Galen believed there is no sharp distinction between the mental and the physical. This was a controversial argument at the time, and Galen agreed with some Greek philosophical schools in believing that the mind and body were not separate faculties. He believed that this could be scientifically shown. This was where his opposition to the Stoics became most prevalent. Galen proposed organs within the body to be responsible for specific functions. According to Galen, the Stoics' lack of scientific justification discredited their claims of the separateness of mind and body, which is why he spoke so strongly against them. There is an intense scholarly debate about soul-body relations in Galen's psychological writings. In his brief treatise Quod animi mores, Galen says both that the soul \"follows\" the mixtures of the body, and that the soul is a bodily mixture. Scholars have offered ways of reconciling these claims, arguing for a materialist reading of Galen's philosophy of mind. According to this materialist reading, Galen identifies the soul with the mixtures of the body.", "title": "Psychology" }, { "paragraph_id": 34, "text": "Another one of Galen's major works, On the Diagnosis and Cure of the Soul's Passion, discussed how to approach and treat psychological problems. This was Galen's early attempt at what would later be called psychotherapy. His book contained directions on how to provide counsel to those with psychological issues to prompt them to reveal their deepest passions and secrets, and eventually cure them of their mental deficiency. The leading individual, or therapist, had to be a male, preferably of an older, wiser, age, as well as free from the control of the passions. These passions, according to Galen, caused the psychological problems that people experienced.", "title": "Psychology" }, { "paragraph_id": 35, "text": "Galen may have produced more work than any author in antiquity, rivaling the quantity of work issued from Augustine of Hippo. So profuse was Galen's output that the surviving texts represent nearly half of all the extant literature from ancient Greece. It has been reported that Galen employed twenty scribes to write down his words. Galen may have written as many as 500 treatises, amounting to some 10 million words. Although his surviving works amount to some 3 million words, this is thought to represent less than a third of his complete writings. In 191, or more likely in 192, a fire in the Temple of Peace destroyed many of his works, in particular treatises on philosophy.", "title": "Published works" }, { "paragraph_id": 36, "text": "Because Galen's works were not translated into Latin in the ancient period, and because of the collapse of the Roman Empire in the West, the study of Galen, along with the Greek medical tradition as a whole, went into decline in Western Europe during the Early Middle Ages, when very few Latin scholars could read Greek. However, in general, Galen and the ancient Greek medical tradition continued to be studied and followed in the Eastern Roman Empire, commonly known as the Byzantine Empire. All of the extant Greek manuscripts of Galen were copied by Byzantine scholars. In the Abbasid period (after 750) Arab Muslims began to be interested in Greek scientific and medical texts for the first time, and had some of Galen's texts translated into Arabic, often by Syrian Christian scholars (see below). As a result, some texts of Galen exist only in Arabic translation, while others exist only in medieval Latin translations of the Arabic. In some cases scholars have even attempted to translate from the Latin or Arabic back into Greek where the original is lost. For some of the ancient sources, such as Herophilus, Galen's account of their work is all that survives.", "title": "Published works" }, { "paragraph_id": 37, "text": "Even in his own time, forgeries and unscrupulous editions of his work were a problem, prompting him to write On His Own Books. Forgeries in Latin, Arabic or Greek continued until the Renaissance. Some of Galen's treatises have appeared under many different titles over the years. Sources are often in obscure and difficult-to-access journals or repositories. Although written in Greek, by convention the works are referred to by Latin titles, and often by merely abbreviations of those. No single authoritative collection of his work exists, and controversy remains as to the authenticity of a number of works attributed to Galen. As a consequence, research on Galen's work is fraught with hazard.", "title": "Published works" }, { "paragraph_id": 38, "text": "Various attempts have been made to classify Galen's vast output. For instance Coxe (1846) lists a Prolegomena, or introductory books, followed by 7 classes of treatise embracing Physiology (28 vols.), Hygiene (12), Aetiology (19), Semeiotics (14), Pharmacy (10), Blood letting (4) and Therapeutics (17), in addition to 4 of aphorisms, and spurious works. The most complete compendium of Galen's writings, surpassing even modern projects like the Corpus Medicorum Graecorum, is the one compiled and translated by Karl Gottlob Kühn of Leipzig between 1821 and 1833. This collection consists of 122 of Galen's treatises, translated from the original Greek into Latin (the text is presented in both languages). Over 20,000 pages in length, it is divided into 22 volumes, with 676 index pages. Many of Galen's works are included in the Thesaurus Linguae Graecae, a digital library of Greek literature started in 1972. Another useful modern source is the French Bibliothèque interuniversitaire de médecine Archived 2014-04-21 at the Wayback Machine (BIUM).", "title": "Published works" }, { "paragraph_id": 39, "text": "In his time, Galen's reputation as both physician and philosopher was legendary, the emperor Marcus Aurelius describing him as \"Primum sane medicorum esse, philosophorum autem solum\" (first among doctors and unique among philosophers Praen 14: 660). Other contemporary authors in the Greek world confirm this including Theodotus the Shoemaker, Athenaeus and Alexander of Aphrodisias. The 7th-century poet George of Pisida went so far as to refer to Christ as a second and neglected Galen. Galen continued to exert an important influence over the theory and practice of medicine until the mid-17th century in the Byzantine and Arabic worlds and Europe. A few centuries after Galen, Palladius Iatrosophista stated in his commentary on Hippocrates that Hippocrates sowed and Galen reaped.", "title": "Legacy" }, { "paragraph_id": 40, "text": "Galen summarized and synthesized the work of his predecessors, and it is in Galen's words (Galenism) that Greek medicine was handed down to subsequent generations, such that Galenism became the means by which Greek medicine was known to the world. Often, this was in the form of restating and reinterpreting, such as in Magnus of Nisibis' 4th-century work on urine, which was in turn translated into Arabic. Yet the full importance of his contributions was not appreciated until long after his death. Galen's rhetoric and prolificity were so powerful as to convey the impression that there was little left to learn. The term Galenism has subsequently taken on both a positive and pejorative meaning as one that transformed medicine in late antiquity yet so dominated subsequent thinking as to stifle further progress.", "title": "Legacy" }, { "paragraph_id": 41, "text": "After the collapse of the Western Empire the study of Galen and other Greek works almost disappeared in the Latin West. In contrast, in the predominantly Greek-speaking eastern half of the Roman empire (Byzantium), many commentators of the subsequent centuries, such as Oribasius, physician to the emperor Julian who compiled a Synopsis in the 4th century, preserved and disseminated Galen's works, making them more accessible. Nutton refers to these authors as the \"medical refrigerators of antiquity\". In late antiquity, medical writing veered increasingly in the direction of the theoretical at the expense of the practical, with many authors merely debating Galenism. Magnus of Nisibis was a pure theorist, as were John of Alexandria and Agnellus of Ravenna with their lectures on Galen's De Sectis. So strong was Galenism that other authors such as Hippocrates began to be seen through Galen's eyes, while his opponents became marginalised and other medical sects such as Asclepiadism slowly disappeared.", "title": "Legacy" }, { "paragraph_id": 42, "text": "Greek medicine was part of Greek culture, and Syrian Christians came in contact with it while the Eastern Roman Empire (Byzantium) ruled Syria and western Mesopotamia, regions that were conquered in the 7th century by the Arabs. After 750, these Syrian Christians made the first translations of Galen into Syriac and Arabic. From then on, Galen and the Greek medical tradition in general became assimilated into the medieval and early modern Islamic Middle East. Job of Edessa is said to have translated 36 of Galen's works into Syriac, some of which were later translated into Arabic by Hunain ibn Ishaq.", "title": "Legacy" }, { "paragraph_id": 43, "text": "Galen's approach to medicine became and remains influential in the Islamic world. The first major translator of Galen into Arabic was the Arab Christian Hunayn ibn Ishaq. He translated (c. 830–870) 129 works of \"Jalinos\" into Arabic. Arabic sources, such as Muhammad ibn Zakarīya al-Rāzi (AD 865–925), continue to be the source of discovery of new or relatively inaccessible Galenic writings. One of Hunayn's Arabic translations, Kitab ila Aglooqan fi Shifa al Amrad, which is extant in the Library of Ibn Sina Academy of Medieval Medicine & Sciences, is regarded as a masterpiece of Galen's literary works. A part of the Alexandrian compendium of Galen's work, this 10th-century manuscript comprises two parts that include details regarding various types of fevers (Humyat) and different inflammatory conditions of the body. More important is that it includes details of more than 150 single and compound formulations of both herbal and animal origin. The book provides an insight into understanding the traditions and methods of treatment in the Greek and Roman eras. In addition, this book provides a direct source for the study of more than 150 single and compound drugs used during the Greco-Roman period.", "title": "Legacy" }, { "paragraph_id": 44, "text": "As the title of Doubts on Galen by al-Rāzi implies, as well as the writings of physicians such as Ibn Zuhr and Ibn al-Nafis, the works of Galen were not accepted unquestioningly, but as a challengeable basis for further inquiry. A strong emphasis on experimentation and empiricism led to new results and new observations, which were contrasted and combined with those of Galen by writers such as al-Rāzi, Ali ibn Abbas al-Majusi, Abu al-Qasim al-Zahrawi, Ibn Sina (Avicenna), Ibn Zuhr and Ibn al-Nafis. For example, Ibn al-Nafis' discovery of the pulmonary circulation contradicted the Galenic theory on the heart.", "title": "Legacy" }, { "paragraph_id": 45, "text": "The influence of Galen's writings, including humorism, remains strong in modern Unani medicine, now closely identified with Islamic culture, and widely practiced from India (where it is officially recognized) to Morocco. Maimonides was influenced by Galen, whom he cited most often in his medical works, and whom he considered to be the greatest physician of all time. In India many Hindu physicians studied Persian and Urdu languages and learnt Galenic medicine. This trend of studies among Hindu physicians began in 17th century and lasted until the early 20th century (Speziale 2018).", "title": "Legacy" }, { "paragraph_id": 46, "text": "From the 11th century onwards, Latin translations of Islamic medical texts began to appear in the West, alongside the Salerno school of thought, and were soon incorporated into the curriculum at the universities of Naples and Montpellier. From that time, Galenism took on a new, unquestioned authority, Galen even being referred to as the \"Medical Pope of the Middle Ages\". Constantine the African was amongst those who translated both Hippocrates and Galen from Arabic. In addition to the more numerous translations of Arabic texts in this period, there were a few translations of Galenic works directly from the Greek, such as Burgundio of Pisa's translation of De complexionibus. Galen's works on anatomy and medicine became the mainstay of the medieval physician's university curriculum, alongside Ibn Sina's The Canon of Medicine, which elaborated on Galen's works. Unlike pagan Rome, Christian Europe did not exercise a universal prohibition of the dissection and autopsy of the human body and such examinations were carried out regularly from at least the 13th century. However, Galen's influence was so great that when dissections discovered anomalies compared with Galen's anatomy, the physicians often tried to fit these into the Galenic system. An example of this is Mondino de Liuzzi, who describes rudimentary blood circulation in his writings but still asserts that the left ventricle should contain air. Some cited these changes as proof that human anatomy had changed since the time of Galen.", "title": "Legacy" }, { "paragraph_id": 47, "text": "The most important translator of Galen's works into Latin was Niccolò di Deoprepio da Reggio, who spent several years working on Galen. Niccolò worked at the Angevin Court during the reign of king Robert of Naples. Among Niccolò's translations is a piece from a medical treatise by Galen, of which the original text is lost.", "title": "Legacy" }, { "paragraph_id": 48, "text": "The first edition of Galen's complete works in Latin translation was edited by Diomede Bonardo of Brescia and printed at Venice by Filippo Pinzi in 1490.", "title": "Legacy" }, { "paragraph_id": 49, "text": "The Renaissance, and the fall of the Byzantine Empire (1453), were accompanied by an influx of Greek scholars and manuscripts to the West, allowing direct comparison between the Arabic commentaries and the original Greek texts of Galen. This New Learning and the Humanist movement, particularly the work of Linacre, promoted literae humaniores including Galen in the Latin scientific canon, De Naturalibus Facultatibus appearing in London in 1523. Debates on medical science now had two traditions, the more conservative Arabian and the liberal Greek. The more extreme liberal movements began to challenge the role of authority in medicine, as exemplified by Paracelsus' symbolically burning the works of Avicenna and Galen at his medical school in Basle. Nevertheless, Galen's pre-eminence amongst the great thinkers of the millennium is exemplified by a 16th-century mural in the refectory of the Great Lavra of Mt Athos. It depicts pagan sages at the foot of the Tree of Jesse, with Galen between the Sibyl and Aristotle.", "title": "Legacy" }, { "paragraph_id": 50, "text": "Galenism's final defeat came from a combination of the negativism of Paracelsus and the constructivism of the Italian Renaissance anatomists, such as Vesalius in the 16th century. In the 1530s, the Flemish anatomist and physician Andreas Vesalius took on a project to translate many of Galen's Greek texts into Latin. Vesalius' most famous work, De humani corporis fabrica, was greatly influenced by Galenic writing and form. Seeking to examine critically Galen's methods and outlook, Vesalius turned to human cadaver dissection as a means of verification. Galen's writings were shown by Vesalius to describe details present in monkeys but not in humans, and he demonstrated Galen's limitations through books and hands-on demonstrations despite fierce opposition from orthodox pro-Galenists such as Jacobus Sylvius. Since Galen states that he is using observations of monkeys (human dissection was prohibited) to give an account of what the body looks like, Vesalius could portray himself as using Galen's approach of description of direct observation to create a record of the exact details of the human body, since he worked in a time when human dissection was allowed. Galen argued that monkey anatomy was close enough to humans for physicians to learn anatomy with monkey dissections and then make observations of similar structures in the wounds of their patients, rather than trying to learn anatomy only from wounds in human patients, as would be done by students trained in the Empiricist model. The examinations of Vesalius also disproved medical theories of Aristotle and Mondino de Liuzzi. One of the best known examples of Vesalius' overturning of Galenism was his demonstration that the interventricular septum of the heart was not permeable, as Galen had taught (Nat Fac III xv). However, this had been revealed two years before by Michael Servetus in his fateful \"Christianismi restitutio\" (1553) with only three copies of the book surviving, but these remaining hidden for decades; the rest were burned shortly after its publication because of persecution of Servetus by religious authorities.", "title": "Legacy" }, { "paragraph_id": 51, "text": "Michael Servetus, using the name \"Michel de Villeneuve\" during his stay in France, was Vesalius' fellow student and the best Galenist at the University of Paris, according to Johann Winter von Andernach, who taught both. In the Galenism of the Renaissance, editions of the Opera Omnia by Galen were very important, beginning from the Aldine Press' editio princeps in Venice in 1525. It was followed in Venice in 1541–1542 by the Giunta. There were fourteen editions of the book from that date until 1625. Just one edition was produced from Lyon between 1548 and 1551. The Lyon edition has commentaries on breathing and blood streaming that correct the work of earlier renowned authors such as Vesalius, Caius, or Janus Cornarius. \"Michel De Villeneuve\" had contracts with Jean Frellon for that work, and the Servetus scholar-researcher Francisco Javier González Echeverría presented research that became an accepted communication in the International Society for the History of Medicine, which concluded that Michael De Villeneuve (Michael Servetus) is the author of the commentaries of this edition of Frellon, in Lyon.", "title": "Legacy" }, { "paragraph_id": 52, "text": "Another convincing case where understanding of the body was extended beyond where Galen had left it came from these demonstrations of the nature of human circulation and the subsequent work of Andrea Cesalpino, Fabricio of Acquapendente and William Harvey. Some Galenic teaching, such as his emphasis on bloodletting as a remedy for many ailments, however, remained influential until well into the 19th century.", "title": "Legacy" }, { "paragraph_id": 53, "text": "Galenic scholarship remains an intense and vibrant field, following renewed interest in his work, dating from the German encyclopedia Realencyclopädie der Classischen Altertumswissenschaft.", "title": "Legacy" }, { "paragraph_id": 54, "text": "Copies of his works translated by Robert M. Green are held at the National Library of Medicine in Bethesda, Maryland.", "title": "Legacy" }, { "paragraph_id": 55, "text": "In 2018, the University of Basel discovered that a mysterious Greek papyrus with mirror writing on both sides, which was at the collection of Basilius Amerbach, a professor of jurisprudence at the University of Basel in the 16th century, is an unknown medical document of Galen or an unknown commentary on his work. The medical text describes the phenomenon of \"hysterical apnea'.", "title": "Legacy" } ]
Aelius Galenus or Claudius Galenus, often anglicized as Galen or Galen of Pergamon, was a Roman Greek physician, surgeon and philosopher. Considered to be one of the most accomplished of all medical researchers of antiquity, Galen influenced the development of various scientific disciplines, including anatomy, physiology, pathology, pharmacology, and neurology, as well as philosophy and logic. The son of Aelius Nicon, a wealthy Greek architect with scholarly interests, Galen received a comprehensive education that prepared him for a successful career as a physician and philosopher. Born in the ancient city of Pergamon, Galen traveled extensively, exposing himself to a wide variety of medical theories and discoveries before settling in Rome, where he served prominent members of Roman society and eventually was given the position of personal physician to several emperors. Galen's understanding of anatomy and medicine was principally influenced by the then-current theory of the four humors: black bile, yellow bile, blood, and phlegm, as first advanced by the author of On the Nature of Man in the Hippocratic corpus. Galen's views dominated and influenced Western medical science for more than 1,300 years. His anatomical reports were based mainly on the dissection of Barbary apes. However, when he discovered that their facial expressions were too much like those of humans, he switched to other animals, such as pigs. The reason for using animals to discover the human body was due to the fact that, while dissections and vivisections on humans were practised in Alexandria at this time, Galen did not have Imperial permission to perform his own. Galen would encourage his students to go look at dead gladiators or bodies that washed up in order to get better acquainted with the human body. His anatomical reports remained uncontested until 1543, when printed descriptions and illustrations of human dissections were published in the seminal work De humani corporis fabrica by Andreas Vesalius, where Galen's physiological theory was accommodated to these new observations. Galen's theory of the physiology of the circulatory system remained unchallenged until c. 1242, when Ibn al-Nafis published his book Sharh tashrih al-qanun li' Ibn Sina, in which he reported his discovery of pulmonary circulation. Galen saw himself as both a physician and a philosopher, as he wrote in his treatise titled That the Best Physician Is Also a Philosopher. Galen was very interested in the debate between the rationalist and empiricist medical sects, and his use of direct observation, dissection, and vivisection represents a complex middle ground between the extremes of those two viewpoints. Many of his works have been preserved and/or translated from the original Greek, although many were destroyed and some credited to him are believed to be spurious. Although there is some debate over the date of his death, he was no younger than seventy when he died.
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2023-11-09T22:41:36Z
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https://en.wikipedia.org/wiki/Galen
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Speaking in tongues
Speaking in tongues, also known as glossolalia (Greek: γλωσσολαλία), is an activity or practice in which people utter words or speech-like sounds, often thought by believers to be languages unknown to the speaker. One definition used by linguists is the fluid vocalizing of speech-like syllables that lack any readily comprehended meaning. In some cases, as part of religious practice, some believe it to be a divine language unknown to the speaker. Glossolalia is practiced in Pentecostal and charismatic Christianity, as well as in other religions. Sometimes a distinction is made between "glossolalia" and "xenolalia" or "xenoglossy", which specifically relates to the belief that the language being spoken is a natural language previously unknown to the speaker. Glossolalia is a borrowing of the Greek: γλωσσολαλία, translit. glossolalía, which is a compound of the Greek: γλῶσσα, translit. glossa, meaning "tongue" or "language" and Greek: λαλέω, translit. laleō, "to speak, talk, chat, prattle, or to make a sound". The Greek expression (in various forms) appears in the New Testament in the books of Acts and First Corinthians. In Acts 2, the followers of Christ receive the Holy Spirit and speak in the languages of at least fifteen countries or ethnic groups. The exact phrase speaking in tongues has been used at least since the translation of the New Testament into Middle English in the Wycliffe Bible in the 14th century. Frederic Farrar first used the word glossolalia in 1879. In 1972, William J. Samarin, a linguist from the University of Toronto, published a thorough assessment of Pentecostal glossolalia that became a classic work on its linguistic characteristics. His assessment was based on a large sample of glossolalia recorded in public and private Christian meetings in Italy, the Netherlands, Jamaica, Canada, and the United States over the course of five years; his wide range of subjects included the Puerto Ricans of the Bronx, the snake handlers of the Appalachians and the spiritual Christians from Russia in Los Angeles (Pryguny, Dukh-i-zhizniki). Samarin found that glossolalic speech does resemble human language in some respects. The speaker uses accent, rhythm, intonation and pauses to break up the speech into distinct units. Each unit is itself made up of syllables, the syllables being formed from consonants and vowels found in a language known to the speaker: It is verbal behaviour that consists of using a certain number of consonants and vowels ... in a limited number of syllables that in turn are organized into larger units that are taken apart and rearranged pseudogrammatically ... with variations in pitch, volume, speed and intensity. [Glossolalia] consists of strings of syllables, made up of sounds taken from all those that the speaker knows, put together more or less haphazardly but emerging nevertheless as word-like and sentence-like units because of realistic, language-like rhythm and melody. That the sounds are taken from the set of sounds already known to the speaker is confirmed by others. Felicitas Goodman, a psychological anthropologist and linguist, also found that the speech of glossolalists reflected the patterns of speech of the speaker's native language. These findings were confirmed by Kavan (2004). Samarin found that the resemblance to human language was merely on the surface and so concluded that glossolalia is "only a facade of language". He reached this conclusion because the syllable string did not form words, the stream of speech was not internally organized, and – most importantly of all – there was no systematic relationship between units of speech and concepts. Humans use language to communicate but glossolalia does not. Therefore, he concluded that glossolalia is not "a specimen of human language because it is neither internally organized nor systematically related to the world man perceives". On the basis of his linguistic analysis, Samarin defined Pentecostal glossolalia as "meaningless but phonologically structured human utterance, believed by the speaker to be a real language but bearing no systematic resemblance to any natural language, living or dead". Felicitas Goodman studied a number of Pentecostal communities in the United States, the Caribbean, and Mexico; these included English-, Spanish- and Mayan-speaking groups. She compared what she found with recordings of non-Christian rituals from Africa, Borneo, Indonesia and Japan. She took into account both the segmental structure (such as sounds, syllables, phrases) and the supra-segmental elements (rhythm, accent, intonation) and concluded that there was no distinction between what was practised by the Pentecostal Protestants and the followers of other religions. It was a commonplace idea within the Ancient world that divine beings spoke languages different from human languages, and historians of religion have identified references to esoteric speech in Greco-Roman literature that resemble glossolalia, sometimes explained as angelic or divine language. An example is the account in the Testament of Job, a non-canonical elaboration of the Book of Job, where the daughters of Job are described as being given sashes enabling them to speak and sing in angelic languages. According to Dale B. Martin, glossolalia was accorded high status in the ancient world due to its association with the divine. Alexander of Abonoteichus may have exhibited glossolalia during his episodes of prophetic ecstasy. Neoplatonist philosopher Iamblichus linked glossolalia to prophecy, writing that prophecy was divine spirit possession that "emits words which are not understood by those that utter them; for they pronounce them, as it is said, with an insane mouth (mainomenό stomati) and are wholly subservient, and entirely yield themselves to the energy of the predominating God". In his writings on early Christianity, the Greek philosopher Celsus includes an account of Christian glossolalia. Celsus describes prophecies made by several Christians in Palestine and Phoenicia of which he writes, "Having brandished these threats they then go on to add incomprehensible, incoherent, and utterly obscure utterances, the meaning of which no intelligent person could discover: for they are meaningless and nonsensical, and give a chance for any fool or sorcerer to take the words in whatever sense he likes". References to speaking in tongues by the Church fathers are rare. Except for Irenaeus' 2nd-century reference to many in the church speaking all kinds of languages "through the Spirit", and Tertullian's reference in 207 AD to the spiritual gift of interpretation of tongues being encountered in his day, there are no other known first-hand accounts of glossolalia, and very few second-hand accounts among their writings. During the 20th century, glossolalia primarily became associated with Pentecostalism and the later charismatic movement. Preachers in the Holiness Movement preachers Charles Parham and William Seymour are credited as co-founders of the movement. Parham and Seymour taught that "baptism of the Holy Spirit was not the blessing of sanctification but rather a third work of grace that was accompanied by the experience of tongues". It was Parham who formulated the doctrine of "initial evidence". After studying the Bible, Parham came to the conclusion that speaking in tongues was the Bible evidence that one had received the baptism with the Holy Spirit. In 1900, Parham opened Bethel Bible College in Topeka, Kansas, America, where he taught initial evidence, a Charismatic belief about how to initiate the practice. During a service on 1 January 1901, a student named Agnes Ozman asked for prayer and the laying on of hands to specifically ask God to fill her with the Holy Spirit. She became the first of many students to experience glossolalia, in the first hours of the 20th century. Parham followed within the next few days. Parham called his new movement the apostolic faith. In 1905, he moved to Houston and opened a Bible school there. One of his students was William Seymour, an African-American preacher. In 1906, Seymour traveled to Los Angeles where his preaching ignited the Azusa Street Revival. This revival is considered the birth of the global Pentecostal movement. According to the first issue of William Seymour's newsletter, The Apostolic Faith, from 1906: A Mohammedan, a Soudanese by birth, a man who is an interpreter and speaks sixteen languages, came into the meetings at Azusa Street and the Lord gave him messages which none but himself could understand. He identified, interpreted and wrote a number of the languages. Parham and his early followers believed that speaking in tongues was xenoglossia, and some followers traveled to foreign countries and tried to use the gift to share the Gospel with non-English-speaking people. From the time of the Azusa Street revival and among early participants in the Pentecostal movement, there were many accounts of individuals hearing their own languages spoken 'in tongues'. The majority of Pentecostals and Charismatics consider speaking in tongues to primarily be divine, or the "language of angels", rather than human languages. In the years following the Azusa Street revival Pentecostals who went to the mission field found that they were unable to speak in the language of the local inhabitants at will when they spoke in tongues in strange lands. The revival at Azusa Street lasted until around 1915. From it grew many new Pentecostal churches as people visited the services in Los Angeles and took their newfound beliefs to communities around the United States and abroad. During the 20th century, glossolalia became an important part of the identity of these religious groups. During the 1960s, the charismatic movement within the mainline Protestant churches and among charismatic Roman Catholics adopted some Pentecostal beliefs, and the practice of glossolalia spread to other Christian denominations. The discussion regarding tongues has permeated many branches of Protestantism, particularly since the widespread charismatic movement in the 1960s. Many books have been published either defending or attacking the practice. In Christianity, a supernatural explanation for glossolalia is advocated by some and rejected by others. Proponents of each viewpoint use the biblical writings and historical arguments to support their positions. There are five places in the New Testament where speaking in tongues is referred to explicitly: Other verses by inference may be considered to refer to "speaking in tongues", such as Isaiah 28:11, Romans 8:26 and Jude 20. The biblical account of Pentecost in the second chapter of the book of Acts describes the sound of a mighty rushing wind and "divided tongues like fire" coming to rest on the apostles. The text further describes that "they were all filled with the Holy Spirit, and began to speak in other languages". It goes on to say in verses 5–11 that when the Apostles spoke, each person in attendance "heard their own language being spoken". Therefore, the gift of speaking in tongues refers to the Apostles' speaking languages that the people listening heard as "them telling in our own tongues the mighty works of God". Glossolalists and cessationists both recognize this as xenoglossia, a miraculous ability that marked their baptism in the Holy Spirit. Something similar (although perhaps not xenoglossia) took place on at least two subsequent occasions, in Caesarea and Ephesus. Glossolalists and cessationists generally agree that the primary purpose of the gift of speaking in tongues was to mark the Holy Spirit being poured out. At Pentecost the Apostle Peter declared that this gift, which was making some in the audience ridicule the disciples as drunks, be the fulfilment of the prophecy of Joel, which described that God would pour out his Spirit on all flesh (Acts 2:17). Despite these commonalities, there are significant variations in interpretation. Baptism with the Holy Spirit is regarded by the Holiness Pentecostals as being the third work of grace, following the new birth (first work of grace) and entire sanctification (second work of grace). Holiness Pentecostals teach that this third work of grace is accompanied with glossolalia. Because Pentecostal and charismatic beliefs are not monolithic, there is not complete theological agreement on speaking in tongues. Generally, followers believe that speaking in tongues is a spiritual gift that can be manifested as either a human language or a heavenly supernatural language in three ways: Many Pentecostals and charismatics quote Paul's words in 1 Corinthians 14 which established guidelines on the public use of glossolalia in the church at Corinth although the exegesis of this passage and the extent to which these instructions are followed is a matter of academic debate. The gift of tongues is often referred to as a "message in tongues". Practitioners believe that this use of glossolalia requires an interpretation so that the gathered congregation can understand the message, which is accomplished by the interpretation of tongues. There are two schools of thought concerning the nature of a message in tongues: In addition to praying in the Spirit, many Pentecostal and charismatic churches practice what is known as singing in the Spirit. In Christian theology, the interpretation of tongues is one of the spiritual gifts listed in 1 Corinthians 12. This gift is used in conjunction with that of the gift of tongues – the supernatural ability to speak in a language (tongue) unknown to the speaker. The gift of interpretation is the supernatural enablement to express in an intelligible language an utterance spoken in an unknown tongue. This is not learned but imparted by the Holy Spirit; therefore, it should not be confused with the acquired skill of language interpretation. While cessationist Christians believe that this miraculous charism has ceased, Charismatic and Pentecostal Christians believe that this gift continues to operate within the church. Much of what is known about this gift was recorded by St. Paul in 1 Corinthians 14. In this passage, guidelines for the proper use of the gift of tongues were given. In order for the gift of tongues to be beneficial to the edification of the church, such supernatural utterances were to be interpreted into the language of the gathered Christians. If no one among the gathered Christians possessed the gift of interpretation, then the gift of tongues was not to be publicly exercised. Those possessing the gift of tongues were encouraged to pray for the ability to interpret. Other religious groups have been observed to practice some form of theopneustic glossolalia. It is perhaps most commonly in Paganism, Shamanism, and other mediumistic religious practices. In Japan, the God Light Association believed that glossolalia could cause adherents to recall past lives. Glossolalia has been postulated as an explanation for the Voynich manuscript. In the 19th century, Spiritism was developed by the work of Allan Kardec, and the practice was seen as one of the self-evident manifestations of spirits. Spiritists argued that some cases were actually cases of xenoglossia. Glossolalia is classified as a non-neurogenic language disorder. Most people exhibiting glossolalia do not have a neuropsychiatric disorder. Neuroimaging of brain activity during glossolalia does not show activity in the language areas of the brain. In other words, it may be characterized by a specific brain activity and it can be a learned behaviour. A 1973 experimental study highlighted the existence of two basic types of glossolalia: a static form which tends to a somewhat coaction to repetitiveness and a more dynamic one which tends to free association of speech-like elements. A study done by the American Journal of Human Biology found that speaking in tongues is associated with both a reduction in circulatory cortisol, and enhancements in alpha-amylase enzyme activity – two common biomarkers of stress reduction that can be measured in saliva. Several sociological studies report various social benefits of engaging in Pentecostal glossolalia, such as an increase in self-confidence. As of April 2021, further studies are needed to corroborate the 1980s view of glossolaly with more sensitive measures of outcome, by using the more recent techniques of neuroimaging. Analysis of glossolalics reveals a pseudo-language that lacks consistent syntax, semantic meaning, usually rhythmic or poetic in nature and is similar to the speaker's native tongue. Samples of glossolalia show a lack of consistency needed for meaningful comparison or translation. It also is not used to communicate between fellow glossolalia speakers, although the meaning is usually translated by the leader involved, in line with and supportive of whatever message or teaching had been given that day, in some way giving divine legitimacy to what is said. Various Christian groups have criticized the Pentecostal and charismatic movement for paying too much attention to mystical manifestations, such as glossolalia. In certain evangelical and other Protestant Churches, this experience was understood as a gift to speak foreign languages without having learned them (xenoglossy) for evangelization, the end of which was prophesied in the First Epistle to the Corinthians in chapter 13, an end which would correspond to the end of the writing of the Bible. Theologians have recalled that on the day of Pentecost, the disciples who received a baptism of the Holy Spirit, did not speak in unknown tongues, but praised God in other tongues that non-believers in various parts of the world could understand, making it a useful gift for evangelism.
[ { "paragraph_id": 0, "text": "Speaking in tongues, also known as glossolalia (Greek: γλωσσολαλία), is an activity or practice in which people utter words or speech-like sounds, often thought by believers to be languages unknown to the speaker. One definition used by linguists is the fluid vocalizing of speech-like syllables that lack any readily comprehended meaning. In some cases, as part of religious practice, some believe it to be a divine language unknown to the speaker. Glossolalia is practiced in Pentecostal and charismatic Christianity, as well as in other religions.", "title": "" }, { "paragraph_id": 1, "text": "Sometimes a distinction is made between \"glossolalia\" and \"xenolalia\" or \"xenoglossy\", which specifically relates to the belief that the language being spoken is a natural language previously unknown to the speaker.", "title": "" }, { "paragraph_id": 2, "text": "Glossolalia is a borrowing of the Greek: γλωσσολαλία, translit. glossolalía, which is a compound of the Greek: γλῶσσα, translit. glossa, meaning \"tongue\" or \"language\" and Greek: λαλέω, translit. laleō, \"to speak, talk, chat, prattle, or to make a sound\". The Greek expression (in various forms) appears in the New Testament in the books of Acts and First Corinthians. In Acts 2, the followers of Christ receive the Holy Spirit and speak in the languages of at least fifteen countries or ethnic groups.", "title": "Etymology" }, { "paragraph_id": 3, "text": "The exact phrase speaking in tongues has been used at least since the translation of the New Testament into Middle English in the Wycliffe Bible in the 14th century. Frederic Farrar first used the word glossolalia in 1879.", "title": "Etymology" }, { "paragraph_id": 4, "text": "In 1972, William J. Samarin, a linguist from the University of Toronto, published a thorough assessment of Pentecostal glossolalia that became a classic work on its linguistic characteristics. His assessment was based on a large sample of glossolalia recorded in public and private Christian meetings in Italy, the Netherlands, Jamaica, Canada, and the United States over the course of five years; his wide range of subjects included the Puerto Ricans of the Bronx, the snake handlers of the Appalachians and the spiritual Christians from Russia in Los Angeles (Pryguny, Dukh-i-zhizniki).", "title": "Linguistics" }, { "paragraph_id": 5, "text": "Samarin found that glossolalic speech does resemble human language in some respects. The speaker uses accent, rhythm, intonation and pauses to break up the speech into distinct units. Each unit is itself made up of syllables, the syllables being formed from consonants and vowels found in a language known to the speaker:", "title": "Linguistics" }, { "paragraph_id": 6, "text": "It is verbal behaviour that consists of using a certain number of consonants and vowels ... in a limited number of syllables that in turn are organized into larger units that are taken apart and rearranged pseudogrammatically ... with variations in pitch, volume, speed and intensity.", "title": "Linguistics" }, { "paragraph_id": 7, "text": "[Glossolalia] consists of strings of syllables, made up of sounds taken from all those that the speaker knows, put together more or less haphazardly but emerging nevertheless as word-like and sentence-like units because of realistic, language-like rhythm and melody.", "title": "Linguistics" }, { "paragraph_id": 8, "text": "That the sounds are taken from the set of sounds already known to the speaker is confirmed by others. Felicitas Goodman, a psychological anthropologist and linguist, also found that the speech of glossolalists reflected the patterns of speech of the speaker's native language. These findings were confirmed by Kavan (2004).", "title": "Linguistics" }, { "paragraph_id": 9, "text": "Samarin found that the resemblance to human language was merely on the surface and so concluded that glossolalia is \"only a facade of language\". He reached this conclusion because the syllable string did not form words, the stream of speech was not internally organized, and – most importantly of all – there was no systematic relationship between units of speech and concepts. Humans use language to communicate but glossolalia does not. Therefore, he concluded that glossolalia is not \"a specimen of human language because it is neither internally organized nor systematically related to the world man perceives\". On the basis of his linguistic analysis, Samarin defined Pentecostal glossolalia as \"meaningless but phonologically structured human utterance, believed by the speaker to be a real language but bearing no systematic resemblance to any natural language, living or dead\".", "title": "Linguistics" }, { "paragraph_id": 10, "text": "Felicitas Goodman studied a number of Pentecostal communities in the United States, the Caribbean, and Mexico; these included English-, Spanish- and Mayan-speaking groups. She compared what she found with recordings of non-Christian rituals from Africa, Borneo, Indonesia and Japan. She took into account both the segmental structure (such as sounds, syllables, phrases) and the supra-segmental elements (rhythm, accent, intonation) and concluded that there was no distinction between what was practised by the Pentecostal Protestants and the followers of other religions.", "title": "Linguistics" }, { "paragraph_id": 11, "text": "It was a commonplace idea within the Ancient world that divine beings spoke languages different from human languages, and historians of religion have identified references to esoteric speech in Greco-Roman literature that resemble glossolalia, sometimes explained as angelic or divine language. An example is the account in the Testament of Job, a non-canonical elaboration of the Book of Job, where the daughters of Job are described as being given sashes enabling them to speak and sing in angelic languages.", "title": "History" }, { "paragraph_id": 12, "text": "According to Dale B. Martin, glossolalia was accorded high status in the ancient world due to its association with the divine. Alexander of Abonoteichus may have exhibited glossolalia during his episodes of prophetic ecstasy. Neoplatonist philosopher Iamblichus linked glossolalia to prophecy, writing that prophecy was divine spirit possession that \"emits words which are not understood by those that utter them; for they pronounce them, as it is said, with an insane mouth (mainomenό stomati) and are wholly subservient, and entirely yield themselves to the energy of the predominating God\".", "title": "History" }, { "paragraph_id": 13, "text": "In his writings on early Christianity, the Greek philosopher Celsus includes an account of Christian glossolalia. Celsus describes prophecies made by several Christians in Palestine and Phoenicia of which he writes, \"Having brandished these threats they then go on to add incomprehensible, incoherent, and utterly obscure utterances, the meaning of which no intelligent person could discover: for they are meaningless and nonsensical, and give a chance for any fool or sorcerer to take the words in whatever sense he likes\".", "title": "History" }, { "paragraph_id": 14, "text": "References to speaking in tongues by the Church fathers are rare. Except for Irenaeus' 2nd-century reference to many in the church speaking all kinds of languages \"through the Spirit\", and Tertullian's reference in 207 AD to the spiritual gift of interpretation of tongues being encountered in his day, there are no other known first-hand accounts of glossolalia, and very few second-hand accounts among their writings.", "title": "History" }, { "paragraph_id": 15, "text": "During the 20th century, glossolalia primarily became associated with Pentecostalism and the later charismatic movement. Preachers in the Holiness Movement preachers Charles Parham and William Seymour are credited as co-founders of the movement. Parham and Seymour taught that \"baptism of the Holy Spirit was not the blessing of sanctification but rather a third work of grace that was accompanied by the experience of tongues\". It was Parham who formulated the doctrine of \"initial evidence\". After studying the Bible, Parham came to the conclusion that speaking in tongues was the Bible evidence that one had received the baptism with the Holy Spirit.", "title": "History" }, { "paragraph_id": 16, "text": "In 1900, Parham opened Bethel Bible College in Topeka, Kansas, America, where he taught initial evidence, a Charismatic belief about how to initiate the practice. During a service on 1 January 1901, a student named Agnes Ozman asked for prayer and the laying on of hands to specifically ask God to fill her with the Holy Spirit. She became the first of many students to experience glossolalia, in the first hours of the 20th century. Parham followed within the next few days. Parham called his new movement the apostolic faith. In 1905, he moved to Houston and opened a Bible school there. One of his students was William Seymour, an African-American preacher. In 1906, Seymour traveled to Los Angeles where his preaching ignited the Azusa Street Revival. This revival is considered the birth of the global Pentecostal movement. According to the first issue of William Seymour's newsletter, The Apostolic Faith, from 1906:", "title": "History" }, { "paragraph_id": 17, "text": "A Mohammedan, a Soudanese by birth, a man who is an interpreter and speaks sixteen languages, came into the meetings at Azusa Street and the Lord gave him messages which none but himself could understand. He identified, interpreted and wrote a number of the languages.", "title": "History" }, { "paragraph_id": 18, "text": "Parham and his early followers believed that speaking in tongues was xenoglossia, and some followers traveled to foreign countries and tried to use the gift to share the Gospel with non-English-speaking people. From the time of the Azusa Street revival and among early participants in the Pentecostal movement, there were many accounts of individuals hearing their own languages spoken 'in tongues'. The majority of Pentecostals and Charismatics consider speaking in tongues to primarily be divine, or the \"language of angels\", rather than human languages. In the years following the Azusa Street revival Pentecostals who went to the mission field found that they were unable to speak in the language of the local inhabitants at will when they spoke in tongues in strange lands.", "title": "History" }, { "paragraph_id": 19, "text": "The revival at Azusa Street lasted until around 1915. From it grew many new Pentecostal churches as people visited the services in Los Angeles and took their newfound beliefs to communities around the United States and abroad. During the 20th century, glossolalia became an important part of the identity of these religious groups. During the 1960s, the charismatic movement within the mainline Protestant churches and among charismatic Roman Catholics adopted some Pentecostal beliefs, and the practice of glossolalia spread to other Christian denominations. The discussion regarding tongues has permeated many branches of Protestantism, particularly since the widespread charismatic movement in the 1960s. Many books have been published either defending or attacking the practice.", "title": "History" }, { "paragraph_id": 20, "text": "In Christianity, a supernatural explanation for glossolalia is advocated by some and rejected by others. Proponents of each viewpoint use the biblical writings and historical arguments to support their positions.", "title": "Christianity" }, { "paragraph_id": 21, "text": "There are five places in the New Testament where speaking in tongues is referred to explicitly:", "title": "Christianity" }, { "paragraph_id": 22, "text": "Other verses by inference may be considered to refer to \"speaking in tongues\", such as Isaiah 28:11, Romans 8:26 and Jude 20.", "title": "Christianity" }, { "paragraph_id": 23, "text": "The biblical account of Pentecost in the second chapter of the book of Acts describes the sound of a mighty rushing wind and \"divided tongues like fire\" coming to rest on the apostles. The text further describes that \"they were all filled with the Holy Spirit, and began to speak in other languages\". It goes on to say in verses 5–11 that when the Apostles spoke, each person in attendance \"heard their own language being spoken\". Therefore, the gift of speaking in tongues refers to the Apostles' speaking languages that the people listening heard as \"them telling in our own tongues the mighty works of God\". Glossolalists and cessationists both recognize this as xenoglossia, a miraculous ability that marked their baptism in the Holy Spirit. Something similar (although perhaps not xenoglossia) took place on at least two subsequent occasions, in Caesarea and Ephesus.", "title": "Christianity" }, { "paragraph_id": 24, "text": "Glossolalists and cessationists generally agree that the primary purpose of the gift of speaking in tongues was to mark the Holy Spirit being poured out. At Pentecost the Apostle Peter declared that this gift, which was making some in the audience ridicule the disciples as drunks, be the fulfilment of the prophecy of Joel, which described that God would pour out his Spirit on all flesh (Acts 2:17).", "title": "Christianity" }, { "paragraph_id": 25, "text": "Despite these commonalities, there are significant variations in interpretation.", "title": "Christianity" }, { "paragraph_id": 26, "text": "Baptism with the Holy Spirit is regarded by the Holiness Pentecostals as being the third work of grace, following the new birth (first work of grace) and entire sanctification (second work of grace). Holiness Pentecostals teach that this third work of grace is accompanied with glossolalia.", "title": "Christianity" }, { "paragraph_id": 27, "text": "Because Pentecostal and charismatic beliefs are not monolithic, there is not complete theological agreement on speaking in tongues. Generally, followers believe that speaking in tongues is a spiritual gift that can be manifested as either a human language or a heavenly supernatural language in three ways:", "title": "Christianity" }, { "paragraph_id": 28, "text": "Many Pentecostals and charismatics quote Paul's words in 1 Corinthians 14 which established guidelines on the public use of glossolalia in the church at Corinth although the exegesis of this passage and the extent to which these instructions are followed is a matter of academic debate.", "title": "Christianity" }, { "paragraph_id": 29, "text": "The gift of tongues is often referred to as a \"message in tongues\". Practitioners believe that this use of glossolalia requires an interpretation so that the gathered congregation can understand the message, which is accomplished by the interpretation of tongues. There are two schools of thought concerning the nature of a message in tongues:", "title": "Christianity" }, { "paragraph_id": 30, "text": "In addition to praying in the Spirit, many Pentecostal and charismatic churches practice what is known as singing in the Spirit.", "title": "Christianity" }, { "paragraph_id": 31, "text": "In Christian theology, the interpretation of tongues is one of the spiritual gifts listed in 1 Corinthians 12. This gift is used in conjunction with that of the gift of tongues – the supernatural ability to speak in a language (tongue) unknown to the speaker. The gift of interpretation is the supernatural enablement to express in an intelligible language an utterance spoken in an unknown tongue. This is not learned but imparted by the Holy Spirit; therefore, it should not be confused with the acquired skill of language interpretation. While cessationist Christians believe that this miraculous charism has ceased, Charismatic and Pentecostal Christians believe that this gift continues to operate within the church. Much of what is known about this gift was recorded by St. Paul in 1 Corinthians 14. In this passage, guidelines for the proper use of the gift of tongues were given. In order for the gift of tongues to be beneficial to the edification of the church, such supernatural utterances were to be interpreted into the language of the gathered Christians. If no one among the gathered Christians possessed the gift of interpretation, then the gift of tongues was not to be publicly exercised. Those possessing the gift of tongues were encouraged to pray for the ability to interpret.", "title": "Christianity" }, { "paragraph_id": 32, "text": "Other religious groups have been observed to practice some form of theopneustic glossolalia. It is perhaps most commonly in Paganism, Shamanism, and other mediumistic religious practices. In Japan, the God Light Association believed that glossolalia could cause adherents to recall past lives.", "title": "Non-Christian practice" }, { "paragraph_id": 33, "text": "Glossolalia has been postulated as an explanation for the Voynich manuscript.", "title": "Non-Christian practice" }, { "paragraph_id": 34, "text": "In the 19th century, Spiritism was developed by the work of Allan Kardec, and the practice was seen as one of the self-evident manifestations of spirits. Spiritists argued that some cases were actually cases of xenoglossia.", "title": "Non-Christian practice" }, { "paragraph_id": 35, "text": "Glossolalia is classified as a non-neurogenic language disorder. Most people exhibiting glossolalia do not have a neuropsychiatric disorder.", "title": "Medical research" }, { "paragraph_id": 36, "text": "Neuroimaging of brain activity during glossolalia does not show activity in the language areas of the brain. In other words, it may be characterized by a specific brain activity and it can be a learned behaviour.", "title": "Medical research" }, { "paragraph_id": 37, "text": "A 1973 experimental study highlighted the existence of two basic types of glossolalia: a static form which tends to a somewhat coaction to repetitiveness and a more dynamic one which tends to free association of speech-like elements.", "title": "Medical research" }, { "paragraph_id": 38, "text": "A study done by the American Journal of Human Biology found that speaking in tongues is associated with both a reduction in circulatory cortisol, and enhancements in alpha-amylase enzyme activity – two common biomarkers of stress reduction that can be measured in saliva. Several sociological studies report various social benefits of engaging in Pentecostal glossolalia, such as an increase in self-confidence.", "title": "Medical research" }, { "paragraph_id": 39, "text": "As of April 2021, further studies are needed to corroborate the 1980s view of glossolaly with more sensitive measures of outcome, by using the more recent techniques of neuroimaging.", "title": "Medical research" }, { "paragraph_id": 40, "text": "Analysis of glossolalics reveals a pseudo-language that lacks consistent syntax, semantic meaning, usually rhythmic or poetic in nature and is similar to the speaker's native tongue. Samples of glossolalia show a lack of consistency needed for meaningful comparison or translation. It also is not used to communicate between fellow glossolalia speakers, although the meaning is usually translated by the leader involved, in line with and supportive of whatever message or teaching had been given that day, in some way giving divine legitimacy to what is said.", "title": "Criticism" }, { "paragraph_id": 41, "text": "Various Christian groups have criticized the Pentecostal and charismatic movement for paying too much attention to mystical manifestations, such as glossolalia.", "title": "Criticism" }, { "paragraph_id": 42, "text": "In certain evangelical and other Protestant Churches, this experience was understood as a gift to speak foreign languages without having learned them (xenoglossy) for evangelization, the end of which was prophesied in the First Epistle to the Corinthians in chapter 13, an end which would correspond to the end of the writing of the Bible.", "title": "Criticism" }, { "paragraph_id": 43, "text": "Theologians have recalled that on the day of Pentecost, the disciples who received a baptism of the Holy Spirit, did not speak in unknown tongues, but praised God in other tongues that non-believers in various parts of the world could understand, making it a useful gift for evangelism.", "title": "Criticism" } ]
Speaking in tongues, also known as glossolalia, is an activity or practice in which people utter words or speech-like sounds, often thought by believers to be languages unknown to the speaker. One definition used by linguists is the fluid vocalizing of speech-like syllables that lack any readily comprehended meaning. In some cases, as part of religious practice, some believe it to be a divine language unknown to the speaker. Glossolalia is practiced in Pentecostal and charismatic Christianity, as well as in other religions. Sometimes a distinction is made between "glossolalia" and "xenolalia" or "xenoglossy", which specifically relates to the belief that the language being spoken is a natural language previously unknown to the speaker.
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https://en.wikipedia.org/wiki/Speaking_in_tongues
12,332
Gustav Kirchhoff
Gustav Robert Kirchhoff (German: [ˈkɪʁçhɔf]; 12 March 1824 – 17 October 1887) was a German physicist who contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects. He coined the term black-body radiation in 1860. Several different sets of concepts, concerning diverse subjects such as black-body radiation and spectroscopy, electrical circuits, and thermochemistry, are named "Kirchhoff's laws" after him. The Bunsen–Kirchhoff Award for spectroscopy is named after him and his colleague, Robert Bunsen. Gustav Kirchhoff was born on 12 March 1824 in Königsberg, Prussia, the son of Friedrich Kirchhoff, a lawyer, and Johanna Henriette Wittke. His family were Lutherans in the Evangelical Church of Prussia. He graduated from the Albertus University of Königsberg in 1847 where he attended the mathematico-physical seminar directed by Carl Gustav Jacob Jacobi, Franz Ernst Neumann and Friedrich Julius Richelot. In the same year, he moved to Berlin, where he stayed until he received a professorship at Breslau. Later, in 1857, he married Clara Richelot, the daughter of his mathematics professor Richelot. The couple had five children. Clara died in 1869. He married Luise Brömmel in 1872. Kirchhoff formulated his circuit laws, which are now ubiquitous in electrical engineering, in 1845, while still a student. He completed this study as a seminar exercise; it later became his doctoral dissertation. He was called to the University of Heidelberg in 1854, where he collaborated in spectroscopic work with Robert Bunsen. In 1857, he calculated that an electric signal in a resistanceless wire travels along the wire at the speed of light. He proposed his law of thermal radiation in 1859, and gave a proof in 1861. Together Kirchhoff and Bunsen invented the spectroscope, which Kirchhoff used to pioneer the identification of the elements in the Sun, showing in 1859 that the Sun contains sodium. He and Bunsen discovered caesium and rubidium in 1861. At Heidelberg he ran a mathematico-physical seminar, modelled on Franz Ernst Neumann's, with the mathematician Leo Koenigsberger. Among those who attended this seminar were Arthur Schuster and Sofia Kovalevskaya. He contributed greatly to the field of spectroscopy by formalizing three laws that describe the spectral composition of light emitted by incandescent objects, building substantially on the discoveries of David Alter and Anders Jonas Ångström. In 1862, he was awarded the Rumford Medal for his researches on the fixed lines of the solar spectrum, and on the inversion of the bright lines in the spectra of artificial light. In 1875 Kirchhoff accepted the first chair dedicated specifically to theoretical physics at Berlin. He also contributed to optics, carefully solving the wave equation to provide a solid foundation for Huygens' principle (and correct it in the process). In 1864, he was elected as a member of the American Philosophical Society. In 1884, he became foreign member of the Royal Netherlands Academy of Arts and Sciences. Kirchhoff died in 1887, and was buried in the St Matthäus Kirchhof Cemetery in Schöneberg, Berlin (just a few meters from the graves of the Brothers Grimm). Leopold Kronecker is buried in the same cemetery. Kirchhoff's first law is that the algebraic sum of currents in a network of conductors meeting at a point (or node) is zero. The second law is that in a closed circuit, the directed sums of the voltages in the system is zero. Kirchhoff did not know about the existence of energy levels in atoms. The existence of discrete spectral lines was known since Fraunhofer discovered them in 1814. And that the lines formed a discrete mathematical pattern was described by Johann Balmer in 1885. Joseph Larmor explained the splitting of the spectral lines in a magnetic field known as the Zeeman Effect by the oscillation of electrons. But these discrete spectral lines were not explained as electron transitions until the Bohr model of the atom in 1913, which helped lead to quantum mechanics. It was Kirchhoff's law of thermal radiation in which he proposed an unknown universal law for radiation that led Max Planck to the discovery of the quantum of action leading to quantum mechanics. Kirchhoff showed in 1858 that, in thermochemistry, the variation of the heat of a chemical reaction is given by the difference in heat capacity between products and reactants: Integration of this equation permits the evaluation of the heat of reaction at one temperature from measurements at another temperature. Gustav Robert Kirchhoff, “IV. Ueber das Verhältniß zwischen dem Emissionsvermögen und dem Absorptionsvermögen der Körper für Wärme und Licht,” Annalen der Physik 185(2), 275-301 (1860). (coinage of term “blackbody”) [On the relationship between the emissivity and the absorptivity of bodies for heat and light]
[ { "paragraph_id": 0, "text": "Gustav Robert Kirchhoff (German: [ˈkɪʁçhɔf]; 12 March 1824 – 17 October 1887) was a German physicist who contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects.", "title": "" }, { "paragraph_id": 1, "text": "He coined the term black-body radiation in 1860. Several different sets of concepts, concerning diverse subjects such as black-body radiation and spectroscopy, electrical circuits, and thermochemistry, are named \"Kirchhoff's laws\" after him. The Bunsen–Kirchhoff Award for spectroscopy is named after him and his colleague, Robert Bunsen.", "title": "" }, { "paragraph_id": 2, "text": "Gustav Kirchhoff was born on 12 March 1824 in Königsberg, Prussia, the son of Friedrich Kirchhoff, a lawyer, and Johanna Henriette Wittke. His family were Lutherans in the Evangelical Church of Prussia. He graduated from the Albertus University of Königsberg in 1847 where he attended the mathematico-physical seminar directed by Carl Gustav Jacob Jacobi, Franz Ernst Neumann and Friedrich Julius Richelot. In the same year, he moved to Berlin, where he stayed until he received a professorship at Breslau. Later, in 1857, he married Clara Richelot, the daughter of his mathematics professor Richelot. The couple had five children. Clara died in 1869. He married Luise Brömmel in 1872.", "title": "Life and work" }, { "paragraph_id": 3, "text": "Kirchhoff formulated his circuit laws, which are now ubiquitous in electrical engineering, in 1845, while still a student. He completed this study as a seminar exercise; it later became his doctoral dissertation. He was called to the University of Heidelberg in 1854, where he collaborated in spectroscopic work with Robert Bunsen. In 1857, he calculated that an electric signal in a resistanceless wire travels along the wire at the speed of light. He proposed his law of thermal radiation in 1859, and gave a proof in 1861. Together Kirchhoff and Bunsen invented the spectroscope, which Kirchhoff used to pioneer the identification of the elements in the Sun, showing in 1859 that the Sun contains sodium. He and Bunsen discovered caesium and rubidium in 1861. At Heidelberg he ran a mathematico-physical seminar, modelled on Franz Ernst Neumann's, with the mathematician Leo Koenigsberger. Among those who attended this seminar were Arthur Schuster and Sofia Kovalevskaya.", "title": "Life and work" }, { "paragraph_id": 4, "text": "He contributed greatly to the field of spectroscopy by formalizing three laws that describe the spectral composition of light emitted by incandescent objects, building substantially on the discoveries of David Alter and Anders Jonas Ångström. In 1862, he was awarded the Rumford Medal for his researches on the fixed lines of the solar spectrum, and on the inversion of the bright lines in the spectra of artificial light. In 1875 Kirchhoff accepted the first chair dedicated specifically to theoretical physics at Berlin.", "title": "Life and work" }, { "paragraph_id": 5, "text": "He also contributed to optics, carefully solving the wave equation to provide a solid foundation for Huygens' principle (and correct it in the process).", "title": "Life and work" }, { "paragraph_id": 6, "text": "In 1864, he was elected as a member of the American Philosophical Society.", "title": "Life and work" }, { "paragraph_id": 7, "text": "In 1884, he became foreign member of the Royal Netherlands Academy of Arts and Sciences.", "title": "Life and work" }, { "paragraph_id": 8, "text": "Kirchhoff died in 1887, and was buried in the St Matthäus Kirchhof Cemetery in Schöneberg, Berlin (just a few meters from the graves of the Brothers Grimm). Leopold Kronecker is buried in the same cemetery.", "title": "Life and work" }, { "paragraph_id": 9, "text": "Kirchhoff's first law is that the algebraic sum of currents in a network of conductors meeting at a point (or node) is zero. The second law is that in a closed circuit, the directed sums of the voltages in the system is zero.", "title": "Life and work" }, { "paragraph_id": 10, "text": "Kirchhoff did not know about the existence of energy levels in atoms. The existence of discrete spectral lines was known since Fraunhofer discovered them in 1814. And that the lines formed a discrete mathematical pattern was described by Johann Balmer in 1885. Joseph Larmor explained the splitting of the spectral lines in a magnetic field known as the Zeeman Effect by the oscillation of electrons. But these discrete spectral lines were not explained as electron transitions until the Bohr model of the atom in 1913, which helped lead to quantum mechanics.", "title": "Life and work" }, { "paragraph_id": 11, "text": "It was Kirchhoff's law of thermal radiation in which he proposed an unknown universal law for radiation that led Max Planck to the discovery of the quantum of action leading to quantum mechanics.", "title": "Life and work" }, { "paragraph_id": 12, "text": "Kirchhoff showed in 1858 that, in thermochemistry, the variation of the heat of a chemical reaction is given by the difference in heat capacity between products and reactants:", "title": "Life and work" }, { "paragraph_id": 13, "text": "Integration of this equation permits the evaluation of the heat of reaction at one temperature from measurements at another temperature.", "title": "Life and work" }, { "paragraph_id": 14, "text": "Gustav Robert Kirchhoff, “IV. Ueber das Verhältniß zwischen dem Emissionsvermögen und dem Absorptionsvermögen der Körper für Wärme und Licht,” Annalen der Physik 185(2), 275-301 (1860). (coinage of term “blackbody”) [On the relationship between the emissivity and the absorptivity of bodies for heat and light]", "title": "Notes" } ]
Gustav Robert Kirchhoff was a German physicist who contributed to the fundamental understanding of electrical circuits, spectroscopy, and the emission of black-body radiation by heated objects. He coined the term black-body radiation in 1860. Several different sets of concepts, concerning diverse subjects such as black-body radiation and spectroscopy, electrical circuits, and thermochemistry, are named "Kirchhoff's laws" after him. The Bunsen–Kirchhoff Award for spectroscopy is named after him and his colleague, Robert Bunsen.
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https://en.wikipedia.org/wiki/Gustav_Kirchhoff
12,333
G. K. Chesterton
Gilbert Keith Chesterton KC*SG (29 May 1874 – 14 June 1936) was an English writer, philosopher, Christian apologist, and literary and art critic. Chesterton created the fictional priest-detective Father Brown, and wrote on apologetics. Even some of those who disagree with him have recognised the wide appeal of such works as Orthodoxy and The Everlasting Man. Chesterton routinely referred to himself as an orthodox Christian, and came to identify this position more and more with Catholicism, eventually converting from high church Anglicanism. Biographers have identified him as a successor to such Victorian authors as Matthew Arnold, Thomas Carlyle, John Henry Newman and John Ruskin. He has been referred to as the "prince of paradox". Of his writing style, Time observed: "Whenever possible, Chesterton made his points with popular sayings, proverbs, allegories—first carefully turning them inside out." His writings were an influence on Jorge Luis Borges, who compared his literature with that of Edgar Allan Poe. Chesterton was born in Campden Hill in Kensington, London, the son of Edward Chesterton (1841–1922), an estate agent, and Marie Louise, née Grosjean, of Swiss French origin. Chesterton was baptised at the age of one month into the Church of England, though his family themselves were irregularly practising Unitarians. According to his autobiography, as a young man he became fascinated with the occult and, along with his brother Cecil, experimented with Ouija boards. He was educated at St Paul's School, then attended the Slade School of Art to become an illustrator. The Slade is a department of University College London, where Chesterton also took classes in literature, but he did not complete a degree in either subject. He married Frances Blogg in 1901; the marriage lasted the rest of his life. Chesterton credited Frances with leading him back to Anglicanism, though he later considered Anglicanism to be a "pale imitation". He entered in full communion with the Catholic Church in 1922. The couple were unable to have children. A friend from schooldays was Edmund Clerihew Bentley, inventor of the clerihew, a whimsical four-line biographical poem. Chesterton himself wrote clerihews and illustrated his friend's first published collection of poetry, Biography for Beginners (1905), which popularised the clerihew form. He became godfather to Bentley's son, Nicolas, and opened his novel The Man Who Was Thursday with a poem written to Bentley. In September 1895, Chesterton began working for the London publisher George Redway, where he remained for just over a year. In October 1896 he moved to the publishing house T. Fisher Unwin, where he remained until 1902. During this period he also undertook his first journalistic work, as a freelance art and literary critic. In 1902 the Daily News gave him a weekly opinion column, followed in 1905 by a weekly column in The Illustrated London News, for which he continued to write for the next thirty years. Early on Chesterton showed a great interest in and talent for art. He had planned to become an artist, and his writing shows a vision that clothed abstract ideas in concrete and memorable images. Father Brown is perpetually correcting the incorrect vision of the bewildered folks at the scene of the crime and wandering off at the end with the criminal to exercise his priestly role of recognition, repentance and reconciliation. For example, in the story "The Flying Stars", Father Brown entreats the character Flambeau to give up his life of crime: "There is still youth and honour and humour in you; don't fancy they will last in that trade. Men may keep a sort of level of good, but no man has ever been able to keep on one level of evil. That road goes down and down. The kind man drinks and turns cruel; the frank man kills and lies about it. Many a man I've known started like you to be an honest outlaw, a merry robber of the rich, and ended stamped into slime." Chesterton loved to debate, often engaging in friendly public disputes with such men as George Bernard Shaw, H. G. Wells, Bertrand Russell and Clarence Darrow. According to his autobiography, he and Shaw played cowboys in a silent film that was never released. On 7 January 1914 Chesterton (along with his brother Cecil and future sister-in-law Ada) took part in the mock-trial of John Jasper for the murder of Edwin Drood. Chesterton was Judge and George Bernard Shaw played the role of foreman of the jury. Chesterton was a large man, standing 6 feet 4 inches (1.93 m) tall and weighing around 20 stone 6 pounds (130 kg; 286 lb). His girth gave rise to an anecdote during the First World War, when a lady in London asked why he was not "out at the Front"; he replied, "If you go round to the side, you will see that I am." On another occasion he remarked to his friend George Bernard Shaw, "To look at you, anyone would think a famine had struck England." Shaw retorted, "To look at you, anyone would think you had caused it." P. G. Wodehouse once described a very loud crash as "a sound like G. K. Chesterton falling onto a sheet of tin". Chesterton usually wore a cape and a crumpled hat, with a swordstick in hand, and a cigar hanging out of his mouth. He had a tendency to forget where he was supposed to be going and miss the train that was supposed to take him there. It is reported that on several occasions he sent a telegram to his wife Frances from an incorrect location, writing such things as "Am in Market Harborough. Where ought I to be?" to which she would reply, "Home". Chesterton himself told this story, omitting, however, his wife's alleged reply, in his autobiography. In 1931, the BBC invited Chesterton to give a series of radio talks. He accepted, tentatively at first. However, from 1932 until his death, Chesterton delivered over 40 talks per year. He was allowed (and encouraged) to improvise on the scripts. This allowed his talks to maintain an intimate character, as did the decision to allow his wife and secretary to sit with him during his broadcasts. The talks were very popular. A BBC official remarked, after Chesterton's death, that "in another year or so, he would have become the dominating voice from Broadcasting House." Chesterton was nominated for the Nobel Prize in Literature in 1935. Chesterton was part of the Detection Club, a society of British mystery authors founded by Anthony Berkeley in 1928. He was elected as the first president and served from 1930 to 1936 till he was succeeded by E. C. Bentley. Chesterton died of congestive heart failure on 14 June 1936, aged 62, at his home in Beaconsfield, Buckinghamshire. His last words were a greeting of good morning spoken to his wife Frances. The sermon at Chesterton's Requiem Mass in Westminster Cathedral, London, was delivered by Ronald Knox on 27 June 1936. Knox said, "All of this generation has grown up under Chesterton's influence so completely that we do not even know when we are thinking Chesterton." He is buried in Beaconsfield in the Catholic Cemetery. Chesterton's estate was probated at £28,389, equivalent to £2,052,132 in 2021. Near the end of Chesterton's life, Pope Pius XI invested him as Knight Commander with Star of the Papal Order of St Gregory the Great (KC*SG). The Chesterton Society has proposed that he be beatified. Chesterton wrote around 80 books, several hundred poems, some 200 short stories, 4,000 essays (mostly newspaper columns), and several plays. He was a literary and social critic, historian, playwright, novelist, and Catholic theologian and apologist, debater, and mystery writer. He was a columnist for the Daily News, The Illustrated London News, and his own paper, G. K.'s Weekly; he also wrote articles for the Encyclopædia Britannica, including the entry on Charles Dickens and part of the entry on Humour in the 14th edition (1929). His best-known character is the priest-detective Father Brown, who appeared only in short stories, while The Man Who Was Thursday is arguably his best-known novel. He was a convinced Christian long before he was received into the Catholic Church, and Christian themes and symbolism appear in much of his writing. In the United States, his writings on distributism were popularised through The American Review, published by Seward Collins in New York. Of his nonfiction, Charles Dickens: A Critical Study (1906) has received some of the broadest-based praise. According to Ian Ker (The Catholic Revival in English Literature, 1845–1961, 2003), "In Chesterton's eyes Dickens belongs to Merry, not Puritan, England"; Ker treats Chesterton's thought in chapter 4 of that book as largely growing out of his true appreciation of Dickens, a somewhat shop-soiled property in the view of other literary opinions of the time. The biography was largely responsible for creating a popular revival for Dickens's work as well as a serious reconsideration of Dickens by scholars. Chesterton's writings consistently displayed wit and a sense of humour. He employed paradox, while making serious comments on the world, government, politics, economics, philosophy, theology and many other topics. T. S. Eliot summed up his work as follows: He was importantly and consistently on the side of the angels. Behind the Johnsonian fancy dress, so reassuring to the British public, he concealed the most serious and revolutionary designs—concealing them by exposure ... Chesterton's social and economic ideas ... were fundamentally Christian and Catholic. He did more, I think, than any man of his time—and was able to do more than anyone else, because of his particular background, development and abilities as a public performer—to maintain the existence of the important minority in the modern world. He leaves behind a permanent claim upon our loyalty, to see that the work that he did in his time is continued in ours. Eliot commented further that "His poetry was first-rate journalistic balladry, and I do not suppose that he took it more seriously than it deserved. He reached a high imaginative level with The Napoleon of Notting Hill, and higher with The Man Who Was Thursday, romances in which he turned the Stevensonian fantasy to more serious purpose. His book on Dickens seems to me the best essay on that author that has ever been written. Some of his essays can be read again and again; though of his essay-writing as a whole, one can only say that it is remarkable to have maintained such a high average with so large an output." In 2022, a three-volume bibliography of Chesterton was published, listing 9000 contributions he made to newspapers, magazines, and journals, as well as 200 books and 3000 articles about him. Chesterton is often associated with his close friend, the poet and essayist Hilaire Belloc. George Bernard Shaw coined the name "Chesterbelloc" for their partnership, and this stuck. Though they were very different men, they shared many beliefs; in 1922, Chesterton joined Belloc in the Catholic faith, and both voiced criticisms of capitalism and socialism. They instead espoused a third way: distributism. G. K.'s Weekly, which occupied much of Chesterton's energy in the last 15 years of his life, was the successor to Belloc's New Witness, taken over from Cecil Chesterton, Gilbert's brother, who died in World War I. In his book On the Place of Gilbert Chesterton in English Letters, Belloc wrote that "Everything he wrote upon any one of the great English literary names was of the first quality. He summed up any one pen (that of Jane Austen, for instance) in exact sentences; sometimes in a single sentence, after a fashion which no one else has approached. He stood quite by himself in this department. He understood the very minds (to take the two most famous names) of Thackeray and of Dickens. He understood and presented Meredith. He understood the supremacy in Milton. He understood Pope. He understood the great Dryden. He was not swamped as nearly all his contemporaries were by Shakespeare, wherein they drown as in a vast sea – for that is what Shakespeare is. Gilbert Chesterton continued to understand the youngest and latest comers as he understood the forefathers in our great corpus of English verse and prose." In his book Heretics, Chesterton said this of Oscar Wilde: "The same lesson [of the pessimistic pleasure-seeker] was taught by the very powerful and very desolate philosophy of Oscar Wilde. It is the carpe diem religion; but the carpe diem religion is not the religion of happy people, but of very unhappy people. Great joy does not gather the rosebuds while it may; its eyes are fixed on the immortal rose which Dante saw." More briefly, and with a closer approximation to Wilde's own style, he wrote in his 1908 book Orthodoxy concerning the necessity of making symbolic sacrifices for the gift of creation: "Oscar Wilde said that sunsets were not valued because we could not pay for sunsets. But Oscar Wilde was wrong; we can pay for sunsets. We can pay for them by not being Oscar Wilde." Chesterton and George Bernard Shaw were famous friends and enjoyed their arguments and discussions. Although rarely in agreement, they each maintained good will toward, and respect for, the other. In his writing, Chesterton expressed himself very plainly on where they differed and why. In Heretics he writes of Shaw: After belabouring a great many people for a great many years for being unprogressive, Mr Shaw has discovered, with characteristic sense, that it is very doubtful whether any existing human being with two legs can be progressive at all. Having come to doubt whether humanity can be combined with progress, most people, easily pleased, would have elected to abandon progress and remain with humanity. Mr Shaw, not being easily pleased, decides to throw over humanity with all its limitations and go in for progress for its own sake. If man, as we know him, is incapable of the philosophy of progress, Mr Shaw asks, not for a new kind of philosophy, but for a new kind of man. It is rather as if a nurse had tried a rather bitter food for some years on a baby, and on discovering that it was not suitable, should not throw away the food and ask for a new food, but throw the baby out of window, and ask for a new baby. Chesterton's views, in contrast to Shaw and others, became increasingly focused towards the Church. In Orthodoxy he wrote: "The worship of will is the negation of will ... If Mr Bernard Shaw comes up to me and says, 'Will something', that is tantamount to saying, 'I do not mind what you will', and that is tantamount to saying, 'I have no will in the matter.' You cannot admire will in general, because the essence of will is that it is particular." Chesterton's The Everlasting Man contributed to C. S. Lewis's conversion to Christianity. In a letter to Sheldon Vanauken (14 December 1950), Lewis called the book "the best popular apologetic I know", and to Rhonda Bodle he wrote (31 December 1947) "the [very] best popular defence of the full Christian position I know is G. K. Chesterton's The Everlasting Man". The book was also cited in a list of 10 books that "most shaped his vocational attitude and philosophy of life". Chesterton's hymn "O God of Earth and Altar" was printed in The Commonwealth and then included in the English Hymnal in 1906. Several lines of the hymn appear in the beginning of the song "Revelations" by the British heavy metal band Iron Maiden on their 1983 album Piece of Mind. Lead singer Bruce Dickinson in an interview stated "I have a fondness for hymns. I love some of the ritual, the beautiful words, Jerusalem and there was another one, with words by G. K. Chesterton O God of Earth and Altar – very fire and brimstone: 'Bow down and hear our cry'. I used that for an Iron Maiden song, "Revelations". In my strange and clumsy way I was trying to say look it's all the same stuff." Étienne Gilson praised Chesterton's book on Thomas Aquinas: "I consider it as being, without possible comparison, the best book ever written on Saint Thomas ... the few readers who have spent twenty or thirty years in studying St. Thomas Aquinas, and who, perhaps, have themselves published two or three volumes on the subject, cannot fail to perceive that the so-called 'wit' of Chesterton has put their scholarship to shame." Archbishop Fulton J. Sheen, the author of 70 books, identified Chesterton as the stylist who had the greatest impact on his own writing, stating in his autobiography Treasure in Clay, "the greatest influence in writing was G. K. Chesterton who never used a useless word, who saw the value of a paradox, and avoided what was trite." Chesterton wrote the introduction to Sheen's book God and Intelligence in Modern Philosophy; A Critical Study in the Light of the Philosophy of Saint Thomas. Chesterton has been called "The Apostle of Common Sense". He was critical of the thinkers and popular philosophers of the day, who though very clever, were saying things that were nonsensical. This is illustrated again in Orthodoxy: "Thus when Mr H. G. Wells says (as he did somewhere), 'All chairs are quite different', he utters not merely a misstatement, but a contradiction in terms. If all chairs were quite different, you could not call them 'all chairs'." Chesterton was an early member of the Fabian Society but resigned at the time of the Boer War. He is often identified as a traditionalist conservative due to his staunch support of tradition, expressed in Orthodoxy and other works with Burkean quotes such as the following: Tradition means giving votes to the most obscure of all classes, our ancestors. It is the democracy of the dead. Tradition refuses to submit to the small and arrogant oligarchy of those who merely happen to be walking about. All democrats object to men being disqualified by the accident of birth; tradition objects to their being disqualified by the accident of death. Democracy tells us not to neglect a good man's opinion, even if he is our groom; tradition asks us not to neglect a good man's opinion, even if he is our father. Chesterton also called himself "the last liberal". Chesterton first emerged as a journalist just after the turn of the 20th century. His great, and very lonely, opposition to the Second Boer War, set him very much apart from most of the rest of the British press. Chesterton was a Little Englander, opposed to imperialism, British or otherwise. Chesterton thought that Great Britain betrayed her own principles in the Boer Wars. In vivid contrast to his opposition to the Boer Wars, Chesterton vigorously defended and encouraged the Allies in World War I. "The war was in Chesterton's eyes a crusade, and he was certain that England was right to fight as she had been wrong in fighting the Boers." Chesterton saw the roots of the war in Prussian militarism. He was deeply disturbed by Prussia's unprovoked invasion and occupation of neutral Belgium and by reports of shocking atrocities the Imperial German Army was allegedly committing in Belgium. Over the course of the War, Chesterton wrote hundreds of essays defending it, attacking pacifism, and exhorting the public to persevere until victory. Some of these essays were collected in the 1916 work, The Barbarism of Berlin. One of Chesterton's most successful works in support of the War was his 1915 tongue-in-cheek The Crimes of England. The work is masterfully ironic, supposedly apologizing and trying to help a fictitious Prussian professor named Whirlwind make the case for Prussia in WWI, while actually attacking Prussia throughout. Part of the book's humorous impact is the conceit that Professor Whirlwind never realizes how his supposed benefactor is undermining Prussia at every turn. Chesterton "blames" England for historically building up Prussia against Austria, and for its pacifism, especially among wealthy British Quaker political donors, who prevented Britain from standing up to past Prussian aggression. Chesterton faced accusations of antisemitism during his lifetime, saying in his 1920 book The New Jerusalem that it was something "for which my friends and I were for a long period rebuked and even reviled". Despite his protestations to the contrary, the accusation continues to be repeated. An early supporter of Captain Dreyfus, by 1906 he had turned into an anti-dreyfusard. From the early 20th century, his fictional work included caricatures of Jews, stereotyping them as greedy, cowardly, disloyal and communists. Martin Gardner suggests that Four Faultless Felons was allowed to go out of print in the United States because of the "anti-Semitism which mars so many pages." The Marconi scandal of 1912–1913 brought issues of anti-Semitism into the political mainstream. Senior ministers in the Liberal government had secretly profited from advance knowledge of deals regarding wireless telegraphy, and critics regarded it as relevant that some of the key players were Jewish. According to historian Todd Endelman, who identified Chesterton as among the most vocal critics, "The Jew-baiting at the time of the Boer War and the Marconi scandal was linked to a broader protest, mounted in the main by the Radical wing of the Liberal Party, against the growing visibility of successful businessmen in national life and their challenge to what were seen as traditional English values." In a work of 1917, titled A Short History of England, Chesterton considers the royal decree of 1290 by which Edward I expelled Jews from England, a policy that remained in place until 1655. Chesterton writes that popular perception of Jewish moneylenders could well have led Edward I's subjects to regard him as a "tender father of his people" for "breaking the rule by which the rulers had hitherto fostered their bankers' wealth". He felt that Jews, "a sensitive and highly civilized people" who "were the capitalists of the age, the men with wealth banked ready for use", might legitimately complain that "Christian kings and nobles, and even Christian popes and bishops, used for Christian purposes (such as the Crusades and the cathedrals) the money that could only be accumulated in such mountains by a usury they inconsistently denounced as unchristian; and then, when worse times came, gave up the Jew to the fury of the poor". In The New Jerusalem Chesterton dedicated a chapter to his views on the Jewish question: the sense that Jews were a distinct people without a homeland of their own, living as foreigners in countries where they were always a minority. He wrote that in the past, his position: was always called Anti-Semitism; but it was always much more true to call it Zionism. ... my friends and I had in some general sense a policy in the matter; and it was in substance the desire to give Jews the dignity and status of a separate nation. We desired that in some fashion, and so far as possible, Jews should be represented by Jews, should live in a society of Jews, should be judged by Jews and ruled by Jews. I am an Anti-Semite if that is Anti-Semitism. It would seem more rational to call it Semitism. In the same place he proposed the thought experiment (describing it as "a parable" and "a flippant fancy") that Jews should be admitted to any role in English public life on condition that they must wear distinctively Middle Eastern garb, explaining that "The point is that we should know where we are; and he would know where he is, which is in a foreign land." Chesterton, like Belloc, openly expressed his abhorrence of Hitler's rule almost as soon as it started. As Rabbi Stephen Wise wrote in a posthumous tribute to Chesterton in 1937: When Hitlerism came, he was one of the first to speak out with all the directness and frankness of a great and unabashed spirit. Blessing to his memory! In The Truth About the Tribes Chesterton attacked Nazi race theories, writing: "the essence of Nazi Nationalism is to preserve the purity of a race in a continent where all races are impure". The historian Simon Mayers points out that Chesterton wrote in works such as The Crank, The Heresy of Race, and The Barbarian as Bore against the concept of racial superiority and critiqued pseudo-scientific race theories, saying they were akin to a new religion. In The Truth About the Tribes Chesterton wrote, "the curse of race religion is that it makes each separate man the sacred image which he worships. His own bones are the sacred relics; his own blood is the blood of St. Januarius". Mayers records that despite "his hostility towards Nazi antisemitism … [it is unfortunate that he made] claims that 'Hitlerism' was a form of Judaism, and that the Jews were partly responsible for race theory". In The Judaism of Hitler, as well as in A Queer Choice and The Crank, Chesterton made much of the fact that the very notion of "a Chosen Race" was of Jewish origin, saying in The Crank: "If there is one outstanding quality in Hitlerism it is its Hebraism" and "the new Nordic Man has all the worst faults of the worst Jews: jealousy, greed, the mania of conspiracy, and above all, the belief in a Chosen Race". Mayers also shows that Chesterton portrayed Jews not only as culturally and religiously distinct, but racially as well. In The Feud of the Foreigner (1920) he said that the Jew "is a foreigner far more remote from us than is a Bavarian from a Frenchman; he is divided by the same type of division as that between us and a Chinaman or a Hindoo. He not only is not, but never was, of the same race". In The Everlasting Man, while writing about human sacrifice, Chesterton suggested that medieval stories about Jews killing children might have resulted from a distortion of genuine cases of devil worship. Chesterton wrote: [T]he Hebrew prophets were perpetually protesting against the Hebrew race relapsing into an idolatry that involved such a war upon children; and it is probable enough that this abominable apostasy from the God of Israel has occasionally appeared in Israel since, in the form of what is called ritual murder; not of course by any representative of the religion of Judaism, but by individual and irresponsible diabolists who did happen to be Jews. The American Chesterton Society has devoted a whole issue of its magazine, Gilbert, to defending Chesterton against charges of antisemitism. Likewise, Ann Farmer, author of Chesterton and the Jews: Friend, Critic, Defender, writes, "Public figures from Winston Churchill to Wells proposed remedies for the 'Jewish problem' – the seemingly endless cycle of anti-Jewish persecution – all shaped by their worldviews. As patriots, Churchill and Chesterton embraced Zionism; both were among the first to defend the Jews from Nazism", concluding that "A defender of Jews in his youth – a conciliator as well as a defender – GKC returned to the defence when the Jewish people needed it most." In Eugenics and Other Evils, Chesterton attacked eugenics as Parliament was moving towards passage of the Mental Deficiency Act 1913. Some backing the ideas of eugenics called for the government to sterilise people deemed "mentally defective"; this view did not gain popularity but the idea of segregating them from the rest of society and thereby preventing them from reproducing did gain traction. These ideas disgusted Chesterton who wrote, "It is not only openly said, it is eagerly urged that the aim of the measure is to prevent any person whom these propagandists do not happen to think intelligent from having any wife or children." He condemned the proposed wording for such measures as being so vague as to apply to anyone, including "Every tramp who is sulk, every labourer who is shy, every rustic who is eccentric, can quite easily be brought under such conditions as were designed for homicidal maniacs. That is the situation; and that is the point ... we are already under the Eugenist State; and nothing remains to us but rebellion." He derided such ideas as founded on nonsense, "as if one had a right to dragoon and enslave one's fellow citizens as a kind of chemical experiment". Chesterton mocked the idea that poverty was a result of bad breeding: "[it is a] strange new disposition to regard the poor as a race; as if they were a colony of Japs or Chinese coolies ... The poor are not a race or even a type. It is senseless to talk about breeding them; for they are not a breed. They are, in cold fact, what Dickens describes: 'a dustbin of individual accidents,' of damaged dignity, and often of damaged gentility." "Chesterton's fence" is the principle that reforms should not be made until the reasoning behind the existing state of affairs is understood. The quotation is from Chesterton's 1929 book, The Thing: Why I Am a Catholic, in the chapter, "The Drift from Domesticity": In the matter of reforming things, as distinct from deforming them, there is one plain and simple principle; a principle which will probably be called a paradox. There exists in such a case a certain institution or law; let us say, for the sake of simplicity, a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, 'I don't see the use of this; let us clear it away.' To which the more intelligent type of reformer will do well to answer: 'If you don't see the use of it, I certainly won't let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it.' Inspired by Leo XIII's encyclical Rerum Novarum, Chesterton's brother Cecil and his friend, Hilaire Belloc were instrumental in developing the economic philosophy of distributism, a word Belloc coined. Gilbert embraced their views and, particularly after Cecil's death in World War I, became one of the foremost distributists and the newspaper whose care he inherited from Cecil, which ultimately came to be named G. K.'s Weekly, became its most consistent advocate. Distributism stands as a third way, against both unrestrained capitalism, and socialism, advocating a wide distribution of both property and political power. James Parker, in The Atlantic, gave a modern appraisal: In his vastness and mobility, Chesterton continues to elude definition: He was a Catholic convert and an oracular man of letters, a pneumatic cultural presence, an aphorist with the production rate of a pulp novelist. Poetry, criticism, fiction, biography, columns, public debate...Chesterton was a journalist; he was a metaphysician. He was a reactionary; he was a radical. He was a modernist, acutely alive to the rupture in consciousness that produced Eliot's "The Hollow Men"; he was an anti-modernist...a parochial Englishman and a post-Victorian gasbag; he was a mystic wedded to eternity. All of these cheerfully contradictory things are true...for the final, resolving fact that he was a genius. Touched once by the live wire of his thought, you don't forget it ... His prose ... [is] supremely entertaining, the stately outlines of an older, heavier rhetoric punctually convulsed by what he once called (in reference to the Book of Job) "earthquake irony". He fulminates wittily; he cracks jokes like thunder. His message, a steady illumination beaming and clanging through every lens and facet of his creativity, was really very straightforward: get on your knees, modern man, and praise God. The Bishop Emeritus of Northampton, Peter John Haworth Doyle, in 2012 had opened a preliminary investigation into possibly launching a cause for beatification and then canonization (for possible sainthood). but eventually decided not to open the cause. The current Bishop of Northampton, David James Oakley, has agreed to preach at a Mass during a Chesterton pilgrimage in England (the route goes through London and Beaconsfield, which are both connected to his life), and some have speculated he may be more favourable to the idea. If the cause is actually opened at the diocesan level (the Vatican must also give approval, that nothing stands in the way – the "nihil obstat"), then he could be given the title "Servant of God". It is not known if his alleged anti-Semitism (which would be considered a serious matter by the Church if it is true) may have played a role. His life and writings and views and what he did for others would be closely examined, in any case. Chesterton's socio-economic system of Distributism affected the sculptor Eric Gill, who established a commune of Catholic artists at Ditchling in Sussex. The Ditchling group developed a journal called The Game, in which they expressed many Chestertonian principles, particularly anti-industrialism and an advocacy of religious family life. His novel The Man Who Was Thursday inspired the Irish Republican leader Michael Collins with the idea that "If you didn't seem to be hiding nobody hunted you out." Collins's favourite work of Chesterton was The Napoleon of Notting Hill, and he was "almost fanatically attached to it", according to his friend Sir William Darling. His column in the Illustrated London News on 18 September 1909 had a profound effect on Mahatma Gandhi. P. N. Furbank asserts that Gandhi was "thunderstruck" when he read it, while Martin Green notes that "Gandhi was so delighted with this that he told Indian Opinion to reprint it". Another convert was Canadian media theorist Marshall McLuhan, who said that the book What's Wrong with the World changed his life in terms of ideas and religion. The author Neil Gaiman stated that he grew up reading Chesterton in his school's library, and that The Napoleon of Notting Hill influenced his own book Neverwhere. Gaiman based the character Gilbert from the comic book The Sandman on Chesterton, and Good Omens, the novel Gaiman co-wrote with Terry Pratchett, is dedicated to Chesterton. The Argentine author and essayist Jorge Luis Borges cited Chesterton as influential on his fiction, telling interviewer Richard Burgin that "Chesterton knew how to make the most of a detective story". Chesterton's many references to education and human formation have inspired a variety of educators including the 44 schools of the Chesterton Schools Network, which includes the Chesterton Academy founded by Dale Ahlquist. and the Italian Scuola Libera G. K. Chesterton in San Benedetto del Tronto, Marche. The publisher and educator Christopher Perrin (who completed his doctoral work on Chesterton) makes frequent reference to Chesterton in his work with classical schools. In 1974, Father Ian Boyd, C.S.B, founded The Chesterton Review, a scholarly journal devoted to Chesterton and his circle. The journal is published by the G. K. Chesterton Institute for Faith and Culture based in Seton Hall University, South Orange, New Jersey. In 1996, Dale Ahlquist founded the American Chesterton Society to explore and promote Chesterton's writings. In 2008, a Catholic high school, Chesterton Academy, opened in the Minneapolis area. In the same year Scuola Libera Chesterton opened in San Benedetto del Tronto, Italy. In 2012, a crater on the planet Mercury was named Chesterton after the author. In 2014, G. K. Chesterton Academy of Chicago, a Catholic high school, opened in Highland Park, Illinois. A fictionalised G. K. Chesterton is the central character in the Young Chesterton Chronicles, a series of young adult adventure novels by John McNichol, and in the G K Chesterton Mystery series, a series of detective novels by the Australian author Kel Richards. Cited biographies
[ { "paragraph_id": 0, "text": "Gilbert Keith Chesterton KC*SG (29 May 1874 – 14 June 1936) was an English writer, philosopher, Christian apologist, and literary and art critic.", "title": "" }, { "paragraph_id": 1, "text": "Chesterton created the fictional priest-detective Father Brown, and wrote on apologetics. Even some of those who disagree with him have recognised the wide appeal of such works as Orthodoxy and The Everlasting Man. Chesterton routinely referred to himself as an orthodox Christian, and came to identify this position more and more with Catholicism, eventually converting from high church Anglicanism. Biographers have identified him as a successor to such Victorian authors as Matthew Arnold, Thomas Carlyle, John Henry Newman and John Ruskin.", "title": "" }, { "paragraph_id": 2, "text": "He has been referred to as the \"prince of paradox\". Of his writing style, Time observed: \"Whenever possible, Chesterton made his points with popular sayings, proverbs, allegories—first carefully turning them inside out.\" His writings were an influence on Jorge Luis Borges, who compared his literature with that of Edgar Allan Poe.", "title": "" }, { "paragraph_id": 3, "text": "Chesterton was born in Campden Hill in Kensington, London, the son of Edward Chesterton (1841–1922), an estate agent, and Marie Louise, née Grosjean, of Swiss French origin. Chesterton was baptised at the age of one month into the Church of England, though his family themselves were irregularly practising Unitarians. According to his autobiography, as a young man he became fascinated with the occult and, along with his brother Cecil, experimented with Ouija boards. He was educated at St Paul's School, then attended the Slade School of Art to become an illustrator. The Slade is a department of University College London, where Chesterton also took classes in literature, but he did not complete a degree in either subject. He married Frances Blogg in 1901; the marriage lasted the rest of his life. Chesterton credited Frances with leading him back to Anglicanism, though he later considered Anglicanism to be a \"pale imitation\". He entered in full communion with the Catholic Church in 1922. The couple were unable to have children.", "title": "Biography" }, { "paragraph_id": 4, "text": "A friend from schooldays was Edmund Clerihew Bentley, inventor of the clerihew, a whimsical four-line biographical poem. Chesterton himself wrote clerihews and illustrated his friend's first published collection of poetry, Biography for Beginners (1905), which popularised the clerihew form. He became godfather to Bentley's son, Nicolas, and opened his novel The Man Who Was Thursday with a poem written to Bentley.", "title": "Biography" }, { "paragraph_id": 5, "text": "In September 1895, Chesterton began working for the London publisher George Redway, where he remained for just over a year. In October 1896 he moved to the publishing house T. Fisher Unwin, where he remained until 1902. During this period he also undertook his first journalistic work, as a freelance art and literary critic. In 1902 the Daily News gave him a weekly opinion column, followed in 1905 by a weekly column in The Illustrated London News, for which he continued to write for the next thirty years.", "title": "Biography" }, { "paragraph_id": 6, "text": "Early on Chesterton showed a great interest in and talent for art. He had planned to become an artist, and his writing shows a vision that clothed abstract ideas in concrete and memorable images. Father Brown is perpetually correcting the incorrect vision of the bewildered folks at the scene of the crime and wandering off at the end with the criminal to exercise his priestly role of recognition, repentance and reconciliation. For example, in the story \"The Flying Stars\", Father Brown entreats the character Flambeau to give up his life of crime: \"There is still youth and honour and humour in you; don't fancy they will last in that trade. Men may keep a sort of level of good, but no man has ever been able to keep on one level of evil. That road goes down and down. The kind man drinks and turns cruel; the frank man kills and lies about it. Many a man I've known started like you to be an honest outlaw, a merry robber of the rich, and ended stamped into slime.\"", "title": "Biography" }, { "paragraph_id": 7, "text": "Chesterton loved to debate, often engaging in friendly public disputes with such men as George Bernard Shaw, H. G. Wells, Bertrand Russell and Clarence Darrow. According to his autobiography, he and Shaw played cowboys in a silent film that was never released. On 7 January 1914 Chesterton (along with his brother Cecil and future sister-in-law Ada) took part in the mock-trial of John Jasper for the murder of Edwin Drood. Chesterton was Judge and George Bernard Shaw played the role of foreman of the jury.", "title": "Biography" }, { "paragraph_id": 8, "text": "Chesterton was a large man, standing 6 feet 4 inches (1.93 m) tall and weighing around 20 stone 6 pounds (130 kg; 286 lb). His girth gave rise to an anecdote during the First World War, when a lady in London asked why he was not \"out at the Front\"; he replied, \"If you go round to the side, you will see that I am.\" On another occasion he remarked to his friend George Bernard Shaw, \"To look at you, anyone would think a famine had struck England.\" Shaw retorted, \"To look at you, anyone would think you had caused it.\" P. G. Wodehouse once described a very loud crash as \"a sound like G. K. Chesterton falling onto a sheet of tin\". Chesterton usually wore a cape and a crumpled hat, with a swordstick in hand, and a cigar hanging out of his mouth. He had a tendency to forget where he was supposed to be going and miss the train that was supposed to take him there. It is reported that on several occasions he sent a telegram to his wife Frances from an incorrect location, writing such things as \"Am in Market Harborough. Where ought I to be?\" to which she would reply, \"Home\". Chesterton himself told this story, omitting, however, his wife's alleged reply, in his autobiography.", "title": "Biography" }, { "paragraph_id": 9, "text": "In 1931, the BBC invited Chesterton to give a series of radio talks. He accepted, tentatively at first. However, from 1932 until his death, Chesterton delivered over 40 talks per year. He was allowed (and encouraged) to improvise on the scripts. This allowed his talks to maintain an intimate character, as did the decision to allow his wife and secretary to sit with him during his broadcasts. The talks were very popular. A BBC official remarked, after Chesterton's death, that \"in another year or so, he would have become the dominating voice from Broadcasting House.\" Chesterton was nominated for the Nobel Prize in Literature in 1935.", "title": "Biography" }, { "paragraph_id": 10, "text": "Chesterton was part of the Detection Club, a society of British mystery authors founded by Anthony Berkeley in 1928. He was elected as the first president and served from 1930 to 1936 till he was succeeded by E. C. Bentley.", "title": "Biography" }, { "paragraph_id": 11, "text": "Chesterton died of congestive heart failure on 14 June 1936, aged 62, at his home in Beaconsfield, Buckinghamshire. His last words were a greeting of good morning spoken to his wife Frances. The sermon at Chesterton's Requiem Mass in Westminster Cathedral, London, was delivered by Ronald Knox on 27 June 1936. Knox said, \"All of this generation has grown up under Chesterton's influence so completely that we do not even know when we are thinking Chesterton.\" He is buried in Beaconsfield in the Catholic Cemetery. Chesterton's estate was probated at £28,389, equivalent to £2,052,132 in 2021.", "title": "Biography" }, { "paragraph_id": 12, "text": "Near the end of Chesterton's life, Pope Pius XI invested him as Knight Commander with Star of the Papal Order of St Gregory the Great (KC*SG). The Chesterton Society has proposed that he be beatified.", "title": "Biography" }, { "paragraph_id": 13, "text": "Chesterton wrote around 80 books, several hundred poems, some 200 short stories, 4,000 essays (mostly newspaper columns), and several plays. He was a literary and social critic, historian, playwright, novelist, and Catholic theologian and apologist, debater, and mystery writer. He was a columnist for the Daily News, The Illustrated London News, and his own paper, G. K.'s Weekly; he also wrote articles for the Encyclopædia Britannica, including the entry on Charles Dickens and part of the entry on Humour in the 14th edition (1929). His best-known character is the priest-detective Father Brown, who appeared only in short stories, while The Man Who Was Thursday is arguably his best-known novel. He was a convinced Christian long before he was received into the Catholic Church, and Christian themes and symbolism appear in much of his writing. In the United States, his writings on distributism were popularised through The American Review, published by Seward Collins in New York.", "title": "Writing" }, { "paragraph_id": 14, "text": "Of his nonfiction, Charles Dickens: A Critical Study (1906) has received some of the broadest-based praise. According to Ian Ker (The Catholic Revival in English Literature, 1845–1961, 2003), \"In Chesterton's eyes Dickens belongs to Merry, not Puritan, England\"; Ker treats Chesterton's thought in chapter 4 of that book as largely growing out of his true appreciation of Dickens, a somewhat shop-soiled property in the view of other literary opinions of the time. The biography was largely responsible for creating a popular revival for Dickens's work as well as a serious reconsideration of Dickens by scholars.", "title": "Writing" }, { "paragraph_id": 15, "text": "Chesterton's writings consistently displayed wit and a sense of humour. He employed paradox, while making serious comments on the world, government, politics, economics, philosophy, theology and many other topics.", "title": "Writing" }, { "paragraph_id": 16, "text": "T. S. Eliot summed up his work as follows:", "title": "Writing" }, { "paragraph_id": 17, "text": "He was importantly and consistently on the side of the angels. Behind the Johnsonian fancy dress, so reassuring to the British public, he concealed the most serious and revolutionary designs—concealing them by exposure ... Chesterton's social and economic ideas ... were fundamentally Christian and Catholic. He did more, I think, than any man of his time—and was able to do more than anyone else, because of his particular background, development and abilities as a public performer—to maintain the existence of the important minority in the modern world. He leaves behind a permanent claim upon our loyalty, to see that the work that he did in his time is continued in ours.", "title": "Writing" }, { "paragraph_id": 18, "text": "Eliot commented further that \"His poetry was first-rate journalistic balladry, and I do not suppose that he took it more seriously than it deserved. He reached a high imaginative level with The Napoleon of Notting Hill, and higher with The Man Who Was Thursday, romances in which he turned the Stevensonian fantasy to more serious purpose. His book on Dickens seems to me the best essay on that author that has ever been written. Some of his essays can be read again and again; though of his essay-writing as a whole, one can only say that it is remarkable to have maintained such a high average with so large an output.\"", "title": "Writing" }, { "paragraph_id": 19, "text": "In 2022, a three-volume bibliography of Chesterton was published, listing 9000 contributions he made to newspapers, magazines, and journals, as well as 200 books and 3000 articles about him.", "title": "Writing" }, { "paragraph_id": 20, "text": "Chesterton is often associated with his close friend, the poet and essayist Hilaire Belloc. George Bernard Shaw coined the name \"Chesterbelloc\" for their partnership, and this stuck. Though they were very different men, they shared many beliefs; in 1922, Chesterton joined Belloc in the Catholic faith, and both voiced criticisms of capitalism and socialism. They instead espoused a third way: distributism. G. K.'s Weekly, which occupied much of Chesterton's energy in the last 15 years of his life, was the successor to Belloc's New Witness, taken over from Cecil Chesterton, Gilbert's brother, who died in World War I.", "title": "Contemporaries" }, { "paragraph_id": 21, "text": "In his book On the Place of Gilbert Chesterton in English Letters, Belloc wrote that \"Everything he wrote upon any one of the great English literary names was of the first quality. He summed up any one pen (that of Jane Austen, for instance) in exact sentences; sometimes in a single sentence, after a fashion which no one else has approached. He stood quite by himself in this department. He understood the very minds (to take the two most famous names) of Thackeray and of Dickens. He understood and presented Meredith. He understood the supremacy in Milton. He understood Pope. He understood the great Dryden. He was not swamped as nearly all his contemporaries were by Shakespeare, wherein they drown as in a vast sea – for that is what Shakespeare is. Gilbert Chesterton continued to understand the youngest and latest comers as he understood the forefathers in our great corpus of English verse and prose.\"", "title": "Contemporaries" }, { "paragraph_id": 22, "text": "In his book Heretics, Chesterton said this of Oscar Wilde: \"The same lesson [of the pessimistic pleasure-seeker] was taught by the very powerful and very desolate philosophy of Oscar Wilde. It is the carpe diem religion; but the carpe diem religion is not the religion of happy people, but of very unhappy people. Great joy does not gather the rosebuds while it may; its eyes are fixed on the immortal rose which Dante saw.\" More briefly, and with a closer approximation to Wilde's own style, he wrote in his 1908 book Orthodoxy concerning the necessity of making symbolic sacrifices for the gift of creation: \"Oscar Wilde said that sunsets were not valued because we could not pay for sunsets. But Oscar Wilde was wrong; we can pay for sunsets. We can pay for them by not being Oscar Wilde.\"", "title": "Contemporaries" }, { "paragraph_id": 23, "text": "Chesterton and George Bernard Shaw were famous friends and enjoyed their arguments and discussions. Although rarely in agreement, they each maintained good will toward, and respect for, the other. In his writing, Chesterton expressed himself very plainly on where they differed and why. In Heretics he writes of Shaw:", "title": "Contemporaries" }, { "paragraph_id": 24, "text": "After belabouring a great many people for a great many years for being unprogressive, Mr Shaw has discovered, with characteristic sense, that it is very doubtful whether any existing human being with two legs can be progressive at all. Having come to doubt whether humanity can be combined with progress, most people, easily pleased, would have elected to abandon progress and remain with humanity. Mr Shaw, not being easily pleased, decides to throw over humanity with all its limitations and go in for progress for its own sake. If man, as we know him, is incapable of the philosophy of progress, Mr Shaw asks, not for a new kind of philosophy, but for a new kind of man. It is rather as if a nurse had tried a rather bitter food for some years on a baby, and on discovering that it was not suitable, should not throw away the food and ask for a new food, but throw the baby out of window, and ask for a new baby.", "title": "Contemporaries" }, { "paragraph_id": 25, "text": "Chesterton's views, in contrast to Shaw and others, became increasingly focused towards the Church. In Orthodoxy he wrote: \"The worship of will is the negation of will ... If Mr Bernard Shaw comes up to me and says, 'Will something', that is tantamount to saying, 'I do not mind what you will', and that is tantamount to saying, 'I have no will in the matter.' You cannot admire will in general, because the essence of will is that it is particular.\"", "title": "Views" }, { "paragraph_id": 26, "text": "Chesterton's The Everlasting Man contributed to C. S. Lewis's conversion to Christianity. In a letter to Sheldon Vanauken (14 December 1950), Lewis called the book \"the best popular apologetic I know\", and to Rhonda Bodle he wrote (31 December 1947) \"the [very] best popular defence of the full Christian position I know is G. K. Chesterton's The Everlasting Man\". The book was also cited in a list of 10 books that \"most shaped his vocational attitude and philosophy of life\".", "title": "Views" }, { "paragraph_id": 27, "text": "Chesterton's hymn \"O God of Earth and Altar\" was printed in The Commonwealth and then included in the English Hymnal in 1906. Several lines of the hymn appear in the beginning of the song \"Revelations\" by the British heavy metal band Iron Maiden on their 1983 album Piece of Mind. Lead singer Bruce Dickinson in an interview stated \"I have a fondness for hymns. I love some of the ritual, the beautiful words, Jerusalem and there was another one, with words by G. K. Chesterton O God of Earth and Altar – very fire and brimstone: 'Bow down and hear our cry'. I used that for an Iron Maiden song, \"Revelations\". In my strange and clumsy way I was trying to say look it's all the same stuff.\"", "title": "Views" }, { "paragraph_id": 28, "text": "Étienne Gilson praised Chesterton's book on Thomas Aquinas: \"I consider it as being, without possible comparison, the best book ever written on Saint Thomas ... the few readers who have spent twenty or thirty years in studying St. Thomas Aquinas, and who, perhaps, have themselves published two or three volumes on the subject, cannot fail to perceive that the so-called 'wit' of Chesterton has put their scholarship to shame.\"", "title": "Views" }, { "paragraph_id": 29, "text": "Archbishop Fulton J. Sheen, the author of 70 books, identified Chesterton as the stylist who had the greatest impact on his own writing, stating in his autobiography Treasure in Clay, \"the greatest influence in writing was G. K. Chesterton who never used a useless word, who saw the value of a paradox, and avoided what was trite.\" Chesterton wrote the introduction to Sheen's book God and Intelligence in Modern Philosophy; A Critical Study in the Light of the Philosophy of Saint Thomas.", "title": "Views" }, { "paragraph_id": 30, "text": "Chesterton has been called \"The Apostle of Common Sense\". He was critical of the thinkers and popular philosophers of the day, who though very clever, were saying things that were nonsensical. This is illustrated again in Orthodoxy: \"Thus when Mr H. G. Wells says (as he did somewhere), 'All chairs are quite different', he utters not merely a misstatement, but a contradiction in terms. If all chairs were quite different, you could not call them 'all chairs'.\"", "title": "Views" }, { "paragraph_id": 31, "text": "Chesterton was an early member of the Fabian Society but resigned at the time of the Boer War. He is often identified as a traditionalist conservative due to his staunch support of tradition, expressed in Orthodoxy and other works with Burkean quotes such as the following:", "title": "Views" }, { "paragraph_id": 32, "text": "Tradition means giving votes to the most obscure of all classes, our ancestors. It is the democracy of the dead. Tradition refuses to submit to the small and arrogant oligarchy of those who merely happen to be walking about. All democrats object to men being disqualified by the accident of birth; tradition objects to their being disqualified by the accident of death. Democracy tells us not to neglect a good man's opinion, even if he is our groom; tradition asks us not to neglect a good man's opinion, even if he is our father.", "title": "Views" }, { "paragraph_id": 33, "text": "Chesterton also called himself \"the last liberal\".", "title": "Views" }, { "paragraph_id": 34, "text": "Chesterton first emerged as a journalist just after the turn of the 20th century. His great, and very lonely, opposition to the Second Boer War, set him very much apart from most of the rest of the British press. Chesterton was a Little Englander, opposed to imperialism, British or otherwise. Chesterton thought that Great Britain betrayed her own principles in the Boer Wars.", "title": "Views" }, { "paragraph_id": 35, "text": "In vivid contrast to his opposition to the Boer Wars, Chesterton vigorously defended and encouraged the Allies in World War I. \"The war was in Chesterton's eyes a crusade, and he was certain that England was right to fight as she had been wrong in fighting the Boers.\" Chesterton saw the roots of the war in Prussian militarism. He was deeply disturbed by Prussia's unprovoked invasion and occupation of neutral Belgium and by reports of shocking atrocities the Imperial German Army was allegedly committing in Belgium. Over the course of the War, Chesterton wrote hundreds of essays defending it, attacking pacifism, and exhorting the public to persevere until victory. Some of these essays were collected in the 1916 work, The Barbarism of Berlin.", "title": "Views" }, { "paragraph_id": 36, "text": "One of Chesterton's most successful works in support of the War was his 1915 tongue-in-cheek The Crimes of England. The work is masterfully ironic, supposedly apologizing and trying to help a fictitious Prussian professor named Whirlwind make the case for Prussia in WWI, while actually attacking Prussia throughout. Part of the book's humorous impact is the conceit that Professor Whirlwind never realizes how his supposed benefactor is undermining Prussia at every turn. Chesterton \"blames\" England for historically building up Prussia against Austria, and for its pacifism, especially among wealthy British Quaker political donors, who prevented Britain from standing up to past Prussian aggression.", "title": "Views" }, { "paragraph_id": 37, "text": "Chesterton faced accusations of antisemitism during his lifetime, saying in his 1920 book The New Jerusalem that it was something \"for which my friends and I were for a long period rebuked and even reviled\". Despite his protestations to the contrary, the accusation continues to be repeated. An early supporter of Captain Dreyfus, by 1906 he had turned into an anti-dreyfusard. From the early 20th century, his fictional work included caricatures of Jews, stereotyping them as greedy, cowardly, disloyal and communists. Martin Gardner suggests that Four Faultless Felons was allowed to go out of print in the United States because of the \"anti-Semitism which mars so many pages.\"", "title": "Views" }, { "paragraph_id": 38, "text": "The Marconi scandal of 1912–1913 brought issues of anti-Semitism into the political mainstream. Senior ministers in the Liberal government had secretly profited from advance knowledge of deals regarding wireless telegraphy, and critics regarded it as relevant that some of the key players were Jewish. According to historian Todd Endelman, who identified Chesterton as among the most vocal critics, \"The Jew-baiting at the time of the Boer War and the Marconi scandal was linked to a broader protest, mounted in the main by the Radical wing of the Liberal Party, against the growing visibility of successful businessmen in national life and their challenge to what were seen as traditional English values.\"", "title": "Views" }, { "paragraph_id": 39, "text": "In a work of 1917, titled A Short History of England, Chesterton considers the royal decree of 1290 by which Edward I expelled Jews from England, a policy that remained in place until 1655. Chesterton writes that popular perception of Jewish moneylenders could well have led Edward I's subjects to regard him as a \"tender father of his people\" for \"breaking the rule by which the rulers had hitherto fostered their bankers' wealth\". He felt that Jews, \"a sensitive and highly civilized people\" who \"were the capitalists of the age, the men with wealth banked ready for use\", might legitimately complain that \"Christian kings and nobles, and even Christian popes and bishops, used for Christian purposes (such as the Crusades and the cathedrals) the money that could only be accumulated in such mountains by a usury they inconsistently denounced as unchristian; and then, when worse times came, gave up the Jew to the fury of the poor\".", "title": "Views" }, { "paragraph_id": 40, "text": "In The New Jerusalem Chesterton dedicated a chapter to his views on the Jewish question: the sense that Jews were a distinct people without a homeland of their own, living as foreigners in countries where they were always a minority. He wrote that in the past, his position:", "title": "Views" }, { "paragraph_id": 41, "text": "was always called Anti-Semitism; but it was always much more true to call it Zionism. ... my friends and I had in some general sense a policy in the matter; and it was in substance the desire to give Jews the dignity and status of a separate nation. We desired that in some fashion, and so far as possible, Jews should be represented by Jews, should live in a society of Jews, should be judged by Jews and ruled by Jews. I am an Anti-Semite if that is Anti-Semitism. It would seem more rational to call it Semitism.", "title": "Views" }, { "paragraph_id": 42, "text": "In the same place he proposed the thought experiment (describing it as \"a parable\" and \"a flippant fancy\") that Jews should be admitted to any role in English public life on condition that they must wear distinctively Middle Eastern garb, explaining that \"The point is that we should know where we are; and he would know where he is, which is in a foreign land.\"", "title": "Views" }, { "paragraph_id": 43, "text": "Chesterton, like Belloc, openly expressed his abhorrence of Hitler's rule almost as soon as it started. As Rabbi Stephen Wise wrote in a posthumous tribute to Chesterton in 1937:", "title": "Views" }, { "paragraph_id": 44, "text": "When Hitlerism came, he was one of the first to speak out with all the directness and frankness of a great and unabashed spirit. Blessing to his memory!", "title": "Views" }, { "paragraph_id": 45, "text": "In The Truth About the Tribes Chesterton attacked Nazi race theories, writing: \"the essence of Nazi Nationalism is to preserve the purity of a race in a continent where all races are impure\".", "title": "Views" }, { "paragraph_id": 46, "text": "The historian Simon Mayers points out that Chesterton wrote in works such as The Crank, The Heresy of Race, and The Barbarian as Bore against the concept of racial superiority and critiqued pseudo-scientific race theories, saying they were akin to a new religion. In The Truth About the Tribes Chesterton wrote, \"the curse of race religion is that it makes each separate man the sacred image which he worships. His own bones are the sacred relics; his own blood is the blood of St. Januarius\". Mayers records that despite \"his hostility towards Nazi antisemitism … [it is unfortunate that he made] claims that 'Hitlerism' was a form of Judaism, and that the Jews were partly responsible for race theory\". In The Judaism of Hitler, as well as in A Queer Choice and The Crank, Chesterton made much of the fact that the very notion of \"a Chosen Race\" was of Jewish origin, saying in The Crank: \"If there is one outstanding quality in Hitlerism it is its Hebraism\" and \"the new Nordic Man has all the worst faults of the worst Jews: jealousy, greed, the mania of conspiracy, and above all, the belief in a Chosen Race\".", "title": "Views" }, { "paragraph_id": 47, "text": "Mayers also shows that Chesterton portrayed Jews not only as culturally and religiously distinct, but racially as well. In The Feud of the Foreigner (1920) he said that the Jew \"is a foreigner far more remote from us than is a Bavarian from a Frenchman; he is divided by the same type of division as that between us and a Chinaman or a Hindoo. He not only is not, but never was, of the same race\".", "title": "Views" }, { "paragraph_id": 48, "text": "In The Everlasting Man, while writing about human sacrifice, Chesterton suggested that medieval stories about Jews killing children might have resulted from a distortion of genuine cases of devil worship. Chesterton wrote:", "title": "Views" }, { "paragraph_id": 49, "text": "[T]he Hebrew prophets were perpetually protesting against the Hebrew race relapsing into an idolatry that involved such a war upon children; and it is probable enough that this abominable apostasy from the God of Israel has occasionally appeared in Israel since, in the form of what is called ritual murder; not of course by any representative of the religion of Judaism, but by individual and irresponsible diabolists who did happen to be Jews.", "title": "Views" }, { "paragraph_id": 50, "text": "The American Chesterton Society has devoted a whole issue of its magazine, Gilbert, to defending Chesterton against charges of antisemitism. Likewise, Ann Farmer, author of Chesterton and the Jews: Friend, Critic, Defender, writes, \"Public figures from Winston Churchill to Wells proposed remedies for the 'Jewish problem' – the seemingly endless cycle of anti-Jewish persecution – all shaped by their worldviews. As patriots, Churchill and Chesterton embraced Zionism; both were among the first to defend the Jews from Nazism\", concluding that \"A defender of Jews in his youth – a conciliator as well as a defender – GKC returned to the defence when the Jewish people needed it most.\"", "title": "Views" }, { "paragraph_id": 51, "text": "In Eugenics and Other Evils, Chesterton attacked eugenics as Parliament was moving towards passage of the Mental Deficiency Act 1913. Some backing the ideas of eugenics called for the government to sterilise people deemed \"mentally defective\"; this view did not gain popularity but the idea of segregating them from the rest of society and thereby preventing them from reproducing did gain traction. These ideas disgusted Chesterton who wrote, \"It is not only openly said, it is eagerly urged that the aim of the measure is to prevent any person whom these propagandists do not happen to think intelligent from having any wife or children.\" He condemned the proposed wording for such measures as being so vague as to apply to anyone, including \"Every tramp who is sulk, every labourer who is shy, every rustic who is eccentric, can quite easily be brought under such conditions as were designed for homicidal maniacs. That is the situation; and that is the point ... we are already under the Eugenist State; and nothing remains to us but rebellion.\" He derided such ideas as founded on nonsense, \"as if one had a right to dragoon and enslave one's fellow citizens as a kind of chemical experiment\". Chesterton mocked the idea that poverty was a result of bad breeding: \"[it is a] strange new disposition to regard the poor as a race; as if they were a colony of Japs or Chinese coolies ... The poor are not a race or even a type. It is senseless to talk about breeding them; for they are not a breed. They are, in cold fact, what Dickens describes: 'a dustbin of individual accidents,' of damaged dignity, and often of damaged gentility.\"", "title": "Views" }, { "paragraph_id": 52, "text": "\"Chesterton's fence\" is the principle that reforms should not be made until the reasoning behind the existing state of affairs is understood. The quotation is from Chesterton's 1929 book, The Thing: Why I Am a Catholic, in the chapter, \"The Drift from Domesticity\":", "title": "Views" }, { "paragraph_id": 53, "text": "In the matter of reforming things, as distinct from deforming them, there is one plain and simple principle; a principle which will probably be called a paradox. There exists in such a case a certain institution or law; let us say, for the sake of simplicity, a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, 'I don't see the use of this; let us clear it away.' To which the more intelligent type of reformer will do well to answer: 'If you don't see the use of it, I certainly won't let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it.'", "title": "Views" }, { "paragraph_id": 54, "text": "Inspired by Leo XIII's encyclical Rerum Novarum, Chesterton's brother Cecil and his friend, Hilaire Belloc were instrumental in developing the economic philosophy of distributism, a word Belloc coined. Gilbert embraced their views and, particularly after Cecil's death in World War I, became one of the foremost distributists and the newspaper whose care he inherited from Cecil, which ultimately came to be named G. K.'s Weekly, became its most consistent advocate. Distributism stands as a third way, against both unrestrained capitalism, and socialism, advocating a wide distribution of both property and political power.", "title": "Views" }, { "paragraph_id": 55, "text": "James Parker, in The Atlantic, gave a modern appraisal:", "title": "Legacy" }, { "paragraph_id": 56, "text": "In his vastness and mobility, Chesterton continues to elude definition: He was a Catholic convert and an oracular man of letters, a pneumatic cultural presence, an aphorist with the production rate of a pulp novelist. Poetry, criticism, fiction, biography, columns, public debate...Chesterton was a journalist; he was a metaphysician. He was a reactionary; he was a radical. He was a modernist, acutely alive to the rupture in consciousness that produced Eliot's \"The Hollow Men\"; he was an anti-modernist...a parochial Englishman and a post-Victorian gasbag; he was a mystic wedded to eternity. All of these cheerfully contradictory things are true...for the final, resolving fact that he was a genius. Touched once by the live wire of his thought, you don't forget it ... His prose ... [is] supremely entertaining, the stately outlines of an older, heavier rhetoric punctually convulsed by what he once called (in reference to the Book of Job) \"earthquake irony\". He fulminates wittily; he cracks jokes like thunder. His message, a steady illumination beaming and clanging through every lens and facet of his creativity, was really very straightforward: get on your knees, modern man, and praise God.", "title": "Legacy" }, { "paragraph_id": 57, "text": "The Bishop Emeritus of Northampton, Peter John Haworth Doyle, in 2012 had opened a preliminary investigation into possibly launching a cause for beatification and then canonization (for possible sainthood). but eventually decided not to open the cause. The current Bishop of Northampton, David James Oakley, has agreed to preach at a Mass during a Chesterton pilgrimage in England (the route goes through London and Beaconsfield, which are both connected to his life), and some have speculated he may be more favourable to the idea. If the cause is actually opened at the diocesan level (the Vatican must also give approval, that nothing stands in the way – the \"nihil obstat\"), then he could be given the title \"Servant of God\". It is not known if his alleged anti-Semitism (which would be considered a serious matter by the Church if it is true) may have played a role. His life and writings and views and what he did for others would be closely examined, in any case.", "title": "Legacy" }, { "paragraph_id": 58, "text": "Chesterton's socio-economic system of Distributism affected the sculptor Eric Gill, who established a commune of Catholic artists at Ditchling in Sussex. The Ditchling group developed a journal called The Game, in which they expressed many Chestertonian principles, particularly anti-industrialism and an advocacy of religious family life. His novel The Man Who Was Thursday inspired the Irish Republican leader Michael Collins with the idea that \"If you didn't seem to be hiding nobody hunted you out.\" Collins's favourite work of Chesterton was The Napoleon of Notting Hill, and he was \"almost fanatically attached to it\", according to his friend Sir William Darling. His column in the Illustrated London News on 18 September 1909 had a profound effect on Mahatma Gandhi. P. N. Furbank asserts that Gandhi was \"thunderstruck\" when he read it, while Martin Green notes that \"Gandhi was so delighted with this that he told Indian Opinion to reprint it\". Another convert was Canadian media theorist Marshall McLuhan, who said that the book What's Wrong with the World changed his life in terms of ideas and religion. The author Neil Gaiman stated that he grew up reading Chesterton in his school's library, and that The Napoleon of Notting Hill influenced his own book Neverwhere. Gaiman based the character Gilbert from the comic book The Sandman on Chesterton, and Good Omens, the novel Gaiman co-wrote with Terry Pratchett, is dedicated to Chesterton. The Argentine author and essayist Jorge Luis Borges cited Chesterton as influential on his fiction, telling interviewer Richard Burgin that \"Chesterton knew how to make the most of a detective story\".", "title": "Legacy" }, { "paragraph_id": 59, "text": "Chesterton's many references to education and human formation have inspired a variety of educators including the 44 schools of the Chesterton Schools Network, which includes the Chesterton Academy founded by Dale Ahlquist. and the Italian Scuola Libera G. K. Chesterton in San Benedetto del Tronto, Marche. The publisher and educator Christopher Perrin (who completed his doctoral work on Chesterton) makes frequent reference to Chesterton in his work with classical schools.", "title": "Legacy" }, { "paragraph_id": 60, "text": "In 1974, Father Ian Boyd, C.S.B, founded The Chesterton Review, a scholarly journal devoted to Chesterton and his circle. The journal is published by the G. K. Chesterton Institute for Faith and Culture based in Seton Hall University, South Orange, New Jersey.", "title": "Legacy" }, { "paragraph_id": 61, "text": "In 1996, Dale Ahlquist founded the American Chesterton Society to explore and promote Chesterton's writings.", "title": "Legacy" }, { "paragraph_id": 62, "text": "In 2008, a Catholic high school, Chesterton Academy, opened in the Minneapolis area. In the same year Scuola Libera Chesterton opened in San Benedetto del Tronto, Italy.", "title": "Legacy" }, { "paragraph_id": 63, "text": "In 2012, a crater on the planet Mercury was named Chesterton after the author.", "title": "Legacy" }, { "paragraph_id": 64, "text": "In 2014, G. K. Chesterton Academy of Chicago, a Catholic high school, opened in Highland Park, Illinois.", "title": "Legacy" }, { "paragraph_id": 65, "text": "A fictionalised G. K. Chesterton is the central character in the Young Chesterton Chronicles, a series of young adult adventure novels by John McNichol, and in the G K Chesterton Mystery series, a series of detective novels by the Australian author Kel Richards.", "title": "Legacy" }, { "paragraph_id": 66, "text": "Cited biographies", "title": "References" } ]
Gilbert Keith Chesterton was an English writer, philosopher, Christian apologist, and literary and art critic. Chesterton created the fictional priest-detective Father Brown, and wrote on apologetics. Even some of those who disagree with him have recognised the wide appeal of such works as Orthodoxy and The Everlasting Man. Chesterton routinely referred to himself as an orthodox Christian, and came to identify this position more and more with Catholicism, eventually converting from high church Anglicanism. Biographers have identified him as a successor to such Victorian authors as Matthew Arnold, Thomas Carlyle, John Henry Newman and John Ruskin. He has been referred to as the "prince of paradox". Of his writing style, Time observed: "Whenever possible, Chesterton made his points with popular sayings, proverbs, allegories—first carefully turning them inside out." His writings were an influence on Jorge Luis Borges, who compared his literature with that of Edgar Allan Poe.
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https://en.wikipedia.org/wiki/G._K._Chesterton
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God Save the King
"God Save the King" (alternatively "God Save the Queen" when the British monarch is female) is the national anthem of the United Kingdom and the royal anthem of each of the British Crown Dependencies, one of two national anthems of New Zealand since 1977, and the royal anthem of most Commonwealth realms. The author of the tune is unknown and it may originate in plainchant, but an attribution to the composer John Bull has sometimes been made. In countries not part of the British Empire, the tune of "God Save the King" has provided the basis for various patriotic songs, though still generally connected with royal ceremony. The melody continues to be used for the national anthem of Liechtenstein, "Oben am jungen Rhein", and the royal anthem of Norway, "Kongesangen". The melody is used for the American patriotic song "My Country, 'Tis of Thee" (also known as "America"). The melody was also used for the national anthem "Heil dir im Siegerkranz" ("Hail to thee in the Victor's Crown") of the Kingdom of Prussia from 1795 and of the German Empire from 1871 to 1918 and as "The Prayer of Russians", the imperial anthem of Russia from 1816 to 1833. In Switzerland, it is known as "Rufst du, mein Vaterland". Beyond its first verse, which is consistent, "God Save the King" has many historic and extant versions. Since its first publication, different verses have been added and taken away and, even today, different publications include various selections of verses in various orders. In general, only one verse is sung. Sometimes two verses are sung and, on certain occasions, three. The entire composition is the musical salute for the monarch and royal consort, while other members of the royal family who are entitled to royal salute (such as the Prince of Wales, along with his spouse) receive just the first six bars. The first six bars also form all or part of the viceregal salute in some Commonwealth realms other than the UK (e.g., in Canada, governors general and lieutenant governors at official events are saluted with the first six bars of "God Save the King" followed by the first four and last four bars of "O Canada"), as well as the salute given to governors of British overseas territories. In The Oxford Companion to Music, Percy Scholes points out the similarities to an early plainsong melody, although the rhythm is very distinctly that of a galliard, and he gives examples of several such dance tunes that bear a striking resemblance to "God Save the King". Scholes quotes a keyboard piece by John Bull (1619) which has some similarities to the modern tune, depending on the placing of accidentals which at that time were unwritten in certain cases and left to the discretion of the player (see musica ficta). He also points to several pieces by Henry Purcell, one of which includes the opening notes of the modern tune, setting the words "God Save the King". Nineteenth-century scholars and commentators mention the widespread belief that an old Scots carol, "Remember O Thou Man", was the source of the tune. The first published version that resembles the present song appeared in 1744, with no title but the heading "For two voices", in an anthology originally named Harmonia Britannia but changed after only a few copies had been printed to Thesaurus Musicus. When the Jacobite pretender Charles Edward Stuart led the 1745 rising, the song spread among those loyal to King George II. The tune published in The Gentleman's Magazine in 1745 departs from that used today at several points, one as early as the first bar, but is otherwise clearly a strong relative of the contemporary anthem. It was recorded as being sung in London theatres in 1745, with, for example, Thomas Arne writing a setting of the tune for the Drury Lane Theatre. Scholes' analysis includes mention of "untenable" and "doubtful" claims, as well as "an American misattribution". Some of these are: Scholes recommends the attribution "traditional" or "traditional; earliest known version by John Bull (1562–1628)". The English Hymnal (musical editor Ralph Vaughan Williams) gives no attribution, stating merely "17th or 18th cent." Like many aspects of British constitutional life, "God Save the King" derives its official status from custom and use, not from Royal Proclamation or Act of Parliament. The variation in the UK of the lyrics to "God Save the King" is the oldest amongst those currently used, and forms the basis on which all other versions used throughout the Commonwealth are formed; though, again, the words have varied over time. England has no official national anthem of its own; "God Save the King" is treated as the English national anthem when England is represented at sporting events (though there are some exceptions to this rule, such as cricket where "Jerusalem" is used). There is a movement to establish an English national anthem, with Blake and Parry's "Jerusalem" and Elgar's "Land of Hope and Glory" among the top contenders. Wales has a single official national anthem, "Hen Wlad Fy Nhadau" (Land of my Fathers) while Scotland uses unofficial anthems ("Scotland the Brave" was traditionally used until the 1990s; since then, "Flower of Scotland" is more commonly used), these anthems are used formally at state and national ceremonies as well as international sporting events such as football and rugby union matches. On all occasions in Northern Ireland, "God Save the King" is still used as the official anthem. In 2001, it was claimed that the phrase "No surrender" was occasionally sung in the bridge before "Send her victorious" by England football fans at matches. Since 2003, "God Save the King", considered an all-inclusive anthem for Great Britain and Northern Ireland, as well as other countries within the Commonwealth, has been dropped from the Commonwealth Games. Northern Irish athletes receive their gold medals to the tune of the "Londonderry Air", popularly known as "Danny Boy". In 2006, English winners heard Elgar's "Pomp and Circumstance March No. 1", usually known as "Land of Hope and Glory", but after a poll conducted by the Commonwealth Games Council for England prior to the 2010 Games, "Jerusalem" was adopted as England's new Commonwealth Games anthem. In sports in which the UK competes as one nation, most notably as Great Britain at the Olympics, the anthem is used to represent anyone or any team that comes from the United Kingdom. The phrase "God Save the King" is much older than the song, appearing, for instance, several times in the King James Bible. A text based on the 1st Book of Kings Chapter 1: verses 38–40, "And all the people rejoic'd, and said: God save the King! Long live the King! May the King live for ever, Amen", has been sung and proclaimed at every coronation since that of King Edgar in 973. Scholes says that as early as 1545 "God Save the King" was a watchword of the Royal Navy, with the response being "Long to reign over us". He also notes that the prayer read in churches on anniversaries of the Gunpowder Plot includes words which might have formed part of the basis for the former standard verse "Scatter our enemies...assuage their malice and confound their devices". In 1745, The Gentleman's Magazine published "God save our lord the king: A new song set for two voices", describing it "As sung at both Playhouses" (the Theatres Royal at Drury Lane and Covent Garden). Traditionally, the first performance was thought to have been in 1745, when it was sung in support of King George II, after his defeat at the Battle of Prestonpans by the army of Charles Edward Stuart, son of James Francis Edward Stuart, the Jacobite claimant to the British throne. It is sometimes claimed that, ironically, the song was originally sung in support of the Jacobite cause: the word "send" in the line "Send him victorious" could imply that the king was absent. However, the Oxford English Dictionary cites examples of "[God] send (a person) safe, victorious, etc." meaning "God grant that he may be safe, etc.". There are also examples of early 18th-century drinking glasses which are inscribed with a version of the words and were apparently intended for drinking the health of King James II and VII. Scholes acknowledges these possibilities but argues that the same words were probably being used by both Jacobite and Hanoverian supporters and directed at their respective kings. In 1902, the musician William Hayman Cummings, quoting mid-18th century correspondence between Charles Burney and Sir Joseph Banks, suggested that the words had been based on a Latin verse composed for King James II at the Chapel Royal. O Deus optime Salvum nunc facito Regem nostrum Sic laeta victoria Comes et gloria Salvum iam facitoe Tu dominum. God save our gracious King! Long live our noble King! God save the King! Send him victorious, Happy and glorious, Long to reign over us: God save the King! Thy choicest gifts in store, On him be pleased to pour; Long may he reign: May he defend our laws, And ever give us cause, To sing with heart and voice, God save the King! When the monarch of the time is female, "King" is replaced with "Queen" and all masculine pronouns are replaced with their feminine equivalents. There is no definitive version of the lyrics. However, the version consisting of the two above verses has the best claim to be regarded as the "standard" British version as referenced on the Royal Family website The song with an additional verse appears not only in the 1745 Gentleman's Magazine, but also in publications such as The Book of English Songs: From the Sixteenth to the Nineteenth Century (1851), National Hymns: How They Are Written and How They Are Not Written (1861), Household Book of Poetry (1882), and Hymns Ancient and Modern, Revised Version (1982). The same version with appears in publications including Scouting for Boys (1908), and on the Royal Family website. According to Alan Michie's The Crown and the People, which was published in 1952, after the death of King George VI but before the coronation of Queen Elizabeth II, when the first General Assembly of the United Nations was held in London in January 1946 the King, in honour of the occasion, "ordered the belligerent imperious second stanza of 'God Save the King' to be rewritten to bring it more into the spirit of the brotherhood of nations." In the UK, the first verse is typically sung alone, even on official occasions, although the second verse is sometimes sung in addition on certain occasions such as during the opening ceremonies of the 2012 Summer Olympics, 2012 Summer Paralympics, and the 2022 Commonwealth Games and usually at the Last Night of the Proms. The second verse was also sung during the Coronation of King Charles III and Queen Camilla. The standard version of the melody and its key of G major are still those of the originally published version, although the start of the anthem is often signalled by an introductory timpani roll of two bars length. The bass line of the standard version differs little from the second voice part shown in the original, and there is a standard version in four-part harmony for choirs. The first three lines (six bars of music) are soft, ending with a short crescendo into "Send him victorious", and then is another crescendo at "over us:" into the final words "God save the King". In the early 20th century there existed a Military Band version in the higher key of B♭, because it was easier for brass instruments to play in that key, though it had the disadvantage of being more difficult to sing: however now most Bands play it in the correct key of concert G. Since 1953, the anthem is sometimes preceded by a fanfare composed by Gordon Jacob for the coronation of Queen Elizabeth II. There have been several attempts to rewrite the words. In the nineteenth century there was some lively debate about the national anthem as verse two was considered by some to be slightly offensive in its use of the phrase "scatter her enemies". Some thought it placed better emphasis on the respective power of Parliament and the Crown to change "her enemies" to "our enemies"; others questioned the theology and proposed "thine enemies" instead. Sydney G. R. Coles wrote a completely new version, as did Canon F. K. Harford. An additional stanza sung second was previously considered part of the standard lyrics in the UK: O Lord our God arise Scatter his enemies And make them fall Confound their politics Frustrate their knavish tricks On thee our hopes we fix God save us all These lyrics appeared in some works of literature prior the coronation of Queen Elizabeth II, but only the version mentioned in the Standard Version in the United Kingdom was used at her Coronation, and ever since on all official occasions when two stanzas have been sung. In 1836, William Edward Hickson wrote an alternative version, of which the first, third, and fourth verses gained some currency when they were appended to the national anthem in The English Hymnal (1906). The fourth Hickson verse was sung after the traditional first verse at Queen Elizabeth II's Golden Jubilee National Service of Thanksgiving in 2002, and during the raising of the Union Flag during the 2008 Summer Olympics closing ceremony, in which London took the baton from Beijing to host the 2012 Summer Olympics. This verse is currently used as the final verse by the Church of Scotland. God bless our native land! May Heav'n's protecting hand Still guard our shore: May peace his power extend, Foe be transformed to friend, And Britain's rights depend On war no more. O Lord, our monarch bless With strength and righteousness: Long may he reign: His heart inspire and move With wisdom from above; And in a nation's love His throne maintain. May just and righteous laws Uphold the public cause, And bless our Isle: Home of the brave and free, Thou land of Liberty, We pray that still on thee Kind Heav'n may smile. Not in this land alone, But be God's mercies known From shore to shore: Lord make the nations see That men should brothers be, And form one family The wide world o'er. To mark the celebration of the Diamond Jubilee of Queen Victoria, a modified version of the second verse was written by the Dean of Rochester, the Very Reverend Samuel Reynolds Hole. A four-part harmony setting was then made by Frederick Bridge, and published by Novello. O Lord Our God Arise, Scatter her enemies, Make wars to cease; Keep us from plague and dearth, Turn thou our woes to mirth; And over all the earth Let there be peace. The Musical Times commented: "There are some conservative minds who may regret the banishment of the 'knavish tricks' and aggressive spirit of the discarded verse, but it must be admitted that Dean Hole's lines are more consonant with the sentiment of modern Christianity." Others reactions were more negative, one report describing the setting as "unwarrantable liberties...worthy of the severest reprobation", with "too much of a Peace Society flavour about it...If we go about pleading for peace, other nations will get it into their heads that we are afraid of fighting." Perhaps unsurprisingly, Hole's version failed to replace the existing verse permanently. A less militaristic version of the song, titled "Official peace version, 1919", was first published in the hymn book Songs of Praise in 1925. This was "official" in the sense that it was approved by the British Privy Council in 1919. However, despite being reproduced in some other hymn books, it is largely unknown today. God save our gracious King! Long live our noble King! God save the King! Send him victorious Happy and glorious Long to reign over us God save the King! One realm of races four Blest more and ever more God save our land! Home of the brave and free Set in the silver sea True nurse of chivalry God save our land! Of many a race and birth From utmost ends of earth God save us all! Bid strife and hatred cease Bid hope and joy increase Spread universal peace God save us all! Around 1745, anti-Jacobite sentiment was captured in a verse appended to the song, with a prayer for the success of Field Marshal George Wade's army then assembling at Newcastle. These words attained some short-term use, although they did not appear in the published version in the October 1745 Gentleman's Magazine. This verse was first documented as an occasional addition to the original anthem by Richard Clark in 1814, and was also mentioned in a later article on the song, published by the Gentleman's Magazine in October 1836. Therein, it is presented as an "additional verse... though being of temporary application only... stored in the memory of an old friend... who was born in the very year 1745, and was thus the associate of those who heard it first sung", the lyrics given being: Lord, grant that Marshal Wade May by thy mighty aid Victory bring; May he sedition hush, and like a torrent rush Rebellious Scots to crush! God save the King! The 1836 article and other sources make it clear that this verse was quickly abandoned after 1745 (Wade was replaced as Commander-in-Chief within a year following the Jacobite invasion of England), and it was certainly not used when the song became accepted as the British national anthem in the 1780s and 1790s. It was included as an integral part of the song in the Oxford Book of Eighteenth-Century Verse of 1926, although erroneously referencing the "fourth verse" to the Gentleman's Magazine article of 1745. On the opposing side, Jacobite beliefs were demonstrated in an alternative verse used during the same period: God bless the prince, I pray, God bless the prince, I pray, Charlie I mean; That Scotland we may see Freed from vile Presbyt'ry, Both George and his Feckie, Ever so, Amen. In May 1800, following an attempt to assassinate King George III at London's Drury Lane theatre, playwright Richard Sheridan immediately composed an additional verse, which was sung from the stage the same night: From every latent foe From the assassin's blow God save the King O'er him Thine arm extend For Britain's sake defend Our father, king, and friend God save the King! Various other attempts were made during the eighteenth and nineteenth centuries to add verses to commemorate particular royal or national events. For example, according to Fitzroy Maclean, when Jacobite forces bypassed Wade's force and reached Derby, but then retreated and when their garrison at Carlisle Castle surrendered to a second government army led by King George's son, the Duke of Cumberland, another verse was added. Other short-lived verses were notably anti-French, such as the following, quoted in the book Handel by Edward J. Dent: From France and Pretender Great Britain defend her, Foes let them fall; From foreign slavery, Priests and their knavery, And Popish Reverie, God save us all. However, none of these additional verses survived into the twentieth century. Updated "full" versions including additional verses have been published more recently, including the standard three verses, Hickson's fourth verse, Sheridan's verse and the Marshal Wade verse. A version from 1794 composed by the American republican and French citizen Joel Barlow celebrated the power of the guillotine to liberate: God save the Guillotine Till England's King and Queen Her power shall prove: Till each appointed knob Affords a clipping job Let no vile halter rob The Guillotine France, let thy trumpet sound – Tell all the world around How Capet fell; And when great George's poll Shall in the basket roll, Let mercy then control The Guillotine When all the sceptre'd crew Have paid their Homage, due The Guillotine Let Freedom's flag advance Till all the world, like France O'er tyrants' graves shall dance And peace begin. The style most commonly heard in official performances was proposed as the "proper interpretation" by King George V, who considered himself something of an expert (in view of the number of times he had heard it). An Army Order was duly issued in 1933, which laid down regulations for tempo, dynamics and orchestration. This included instructions such as that the opening "six bars will be played quietly by the reed band with horns and basses in a single phrase. Cornets and side-drum are to be added at the little scale-passage leading into the second half of the tune, and the full brass enters for the last eight bars". The official tempo for the opening section is a metronome setting of 60, with the second part played in a broader manner, at a metronome setting of 52. In recent years the prescribed sombre-paced introduction is often played at a faster and livelier tempo. Until the latter part of the 20th century, theatre and concert goers were expected to stand while the anthem was played after the conclusion of a show. In cinemas this brought a tendency for audiences to rush out while the end credits played to avoid this formality. (This can be seen in the 1972 Dad's Army episode "A Soldier's Farewell".) The anthem continues to be played at some traditional events such as Wimbledon, Royal Variety Performance, the Edinburgh Tattoo, Royal Ascot, Henley Royal Regatta and The Proms as well as at Royal events. The anthem was traditionally played at close-down on the BBC, and with the introduction of commercial television to the UK this practice was adopted by some ITV companies (with the notable exceptions of Granada, Thames Television, Central Television, Border Television, and Yorkshire Television). BBC Two also never played the anthem at close-down, and ITV dropped the practice in the late 1980s when the network switched to 24 hour broadcasting, but it continued on BBC One until 8 November 1997 (thereafter BBC One began to simulcast with BBC News after end of programmes). The tradition is carried on, however, by BBC Radio 4, which plays the anthem each night as a transition piece between the end of the Radio 4 broadcasting and the move to BBC World Service. BBC Radio 4 and BBC Radio 2 also play the National Anthem just before the 0700 and 0800 news bulletins on the actual and official birthdays of the King and the birthdays of senior members of the Royal Family. On 17 January 2022, the GB News Channel started playing the anthem at 05:59 every morning at the beginning of the day's programming. The UK's national anthem usually prefaces The Sovereign's Christmas Message (although in 2007 it appeared at the end, taken from a recording of the 1957 television broadcast), and important royal announcements, such as of royal deaths, when it is played in a slower, sombre arrangement. Frequently, when an anthem is needed for one of the constituent countries of the United Kingdom – at an international sporting event, for instance – an alternative song is used: The London 2012 Olympics Opening Ceremony provided a conscious use of three of the four anthems listed above; the ceremony began with a rendition of the first verse of "Jerusalem", before a choir in Northern Ireland sang "Danny Boy" and a choir in Edinburgh performed part of "Flower of Scotland". Notably, Wales was represented by the hymn "Bread of Heaven", not "Hen Wlad Fy Nhadhau". In April 2007, there was an early day motion, number 1319, to the British Parliament to propose that there should be a separate England anthem: "That this House ... believes that all English sporting associations should adopt an appropriate song that English sportsmen and women, and the English public, would favour when competing as England". An amendment (EDM 1319A3) was proposed by Evan Harris that the song "should have a bit more oomph than God Save The Queen and should also not involve God." For more information see also: On 3 November 2016, Conservative MP Andrew Rosindell argued for a return to the broadcasting of "God Save the Queen" at the end of BBC One transmissions each day. The practice was dropped in 1997 (ostensibly due to BBC One adopting 24-hour broadcasting by simulcasting BBC News 24 overnight, rendering closedown obsolete). Since 18 January 2022, GB News has played "God Save the Queen" at the start of live programming every day. "God Save the King" was exported around the world via the expansion of the British Empire, serving as each country's national anthem. Throughout the Empire's evolution into the Commonwealth of Nations, the song declined in use in most states which became independent. In New Zealand, it remains one of the official national anthems. In Australia, the song has standing through a Royal Proclamation issued by Governor-General Sir Ninian Stephen on 19 April 1984. It declared "God Save the Queen" to be the Royal Anthem and that it is to be played when the Australian monarch or a member of the Royal Family is present, though not exclusively in such circumstances. The same proclamation made "Advance Australia Fair" the national anthem and the basis for the "Vice-Regal Salute" (the first four and last two bars of the anthem). Prior to 1984, "God Save the Queen" was the national anthem of Australia. In 1975, former Prime Minister Gough Whitlam, dismissed by Governor-General Sir John Kerr, alluded to the anthem in his comment "Well may we say 'God save the Queen', because nothing will save the Governor-General!". "God Save the King" is the royal anthem of Belize. The Vice-Regal Salute to the Belizean governor general is composed of the first verse of "God Save the King" and the chorus of National Anthem, "Land of the Free". By convention, "God Save the King" (French: Dieu Sauve le Roi, Dieu Sauve la Reine when a Queen) is the royal anthem of Canada. It is sometimes played or sung together with the national anthem, "O Canada", at private and public events organised by groups such as the Government of Canada, the Royal Canadian Legion, police services, and loyal groups. The governor general and provincial lieutenant governors are accorded the "Viceregal Salute", comprising the first three lines of "God Save the King", followed by the first and last lines of "O Canada". "God Save the King" has been sung in Canada since the late 1700s and by the mid 20th century was, along with "O Canada", one of the country's two de facto national anthems, the first and last verses of the standard British version being used. By-laws and practices governing the use of either song during public events in municipalities varied; in Toronto, "God Save the King" was employed, while in Montreal it was "O Canada". Prime Minister Lester B. Pearson in 1964 said one song would have to be chosen as the country's national anthem and, three years later, he advised Governor General Georges Vanier to appoint the Special Joint Committee of the Senate and House of Commons on the National and Royal Anthems. Within two months, on 12 April 1967, the committee presented its conclusion that "God Save the Queen" (as this was during the reign of Queen Elizabeth II), whose music and lyrics were found to be in the public domain, should be designated as the royal anthem of Canada and "O Canada" as the national anthem, one verse from each, in both official languages, to be adopted by parliament. The group was then charged with establishing official lyrics for each song; for "God Save the Queen", the English words were those inherited from the United Kingdom and the French words were taken from those that had been adopted in 1952 for the coronation of Elizabeth II. When the bill pronouncing "O Canada" as the national anthem was put through parliament, the joint committee's earlier recommendations regarding "God Save the Queen" were not included. The Department of National Defence and the Canadian Forces regulates that "God Save the King" be played as a salute to the monarch of Canada and other members of the Canadian royal family, though it may also be used as a hymn or prayer. The words are not to be sung when the song is played as a military royal salute and is abbreviated to the first three lines, while arms are being presented. Elizabeth II stipulated that the arrangement in G major by Lieutenant Colonel Basil H. Brown be used in Canada. The authorised version to be played by pipe bands is Mallorca. "God Save the King" has been translated into French, but this translation does not fit the music and cannot be sung. Nevertheless, this translation has been adapted into a bilingual version that can be sung when the monarch is male, and has been sung during public ceremonies, such as the National Remembrance Day Ceremony at the National War Memorial in Ottawa: Dieu sauve notre Roi, Notre gracieux Roi, Vive le Roi ! Send him victorious, Happy and glorious; Long to reign over us, God save the King! A special singable one-verse adaptation is used when a singable French version is required, such as when royalty is present at an official occasion: Dieu sauve notre Roi! Notre gracieux Roi ! Vive le Roi! Rends-lui victorieux, Heureux et glorieux, Que soit long son règne sur nous, Vive le Roi! There is a special Canadian verse in English which was once commonly sung in addition to the two standing verses: Our loved Dominion bless With peace and happiness From shore to shore; And let our Empire be Loyal, united, free, True to herself and Thee For evermore. "God Save the King" is used by both Bailiwicks of the Channel Islands as an alternative to their respective national anthems. Its use case and popular version is generally similar to how it is used in the United Kingdom. However, the anthem has been translated in Jèrriais: Dgieu sauve not' Duc, Longue vie à not' Duc, Dgieu sauve la Rei! Rends-la victorieuse Jouaiyeuse et glorieuse; Qu'on règne sus nous heûtheuse – Dgieu sauve la Rei! Tes dons les pus précieux, Sus yi vèrse des cieux, Dgieu sauve la Rei! Qu'on défende nous louais Et d'un tchoeu et d'eune vouaix Jé chantons à janmais Dgieu sauve la Rei! The meaning is broadly similar to the first paragraph of the English version, except for the first two lines which say "God save our Duke" and "Long live our Duke". "God Save the King" was the sole official national anthem until 1977 when "God Defend New Zealand" was added as a second. Since then, "God Save the King" is most often only played when the sovereign, governor-general or other member of the Royal Family is present, or on some occasions such as Anzac Day. The Māori-language version was written by Edward Marsh Williams under the title, "E te atua tohungia te kuini". There is a special New Zealand verse in English which was once commonly sung to replace the second and third verses: Not on this land alone But be God's mercies known From shore to shore. Lord, make the nations see That we in liberty Should form one family The wide world o'er. All verses of "God Save the King" have been translated into Māori. The first verse is shown below: Me tohu e te Atua To matou Kīngi pai: Kia ora ia Meinga kia maia ia, Kia hari nui, kia koa, Kia kingi tonu ia, Tau tini noa. When Rhodesia issued its Unilateral Declaration of Independence from the UK on 11 November 1965, it did so while still maintaining loyalty to Queen Elizabeth II as the Rhodesian head of state, despite the non-recognition of the Rhodesian government by the United Kingdom and the United Nations; "God Save the Queen" therefore remained the Rhodesian national anthem. This was supposed to demonstrate the continued allegiance of the Rhodesian people to the monarch, but the retention in Rhodesia of a song so associated with the UK while the two countries were at loggerheads regarding its constitutional status caused Rhodesian state occasions to have "a faintly ironic tone", in the words of The Times. Nevertheless, "God Save the Queen" remained Rhodesia's national anthem until March 1970, when the country formally declared itself a republic. "Rise, O Voices of Rhodesia" was adopted in its stead in 1974 and remained in use until the country returned to the UK's control in December 1979. Since the internationally recognised independence of the Republic of Zimbabwe in April 1980, "God Save the King" has had no official status there. "God Save the King" is the royal anthem of Saint Vincent and the Grenadines. It is played on royal and vice-regal occasions. The Vice-Regal Salute to the governor general is composed of the chorus of "God Save the King" and followed by that of the National Anthem, "Saint Vincent, Land so Beautiful". All proclamations in Saint Vincent and the Grenadines end with the phrase: "God Save the King". "God Save the King" was translated into the Lau language in 1945: God, ka faamouria a King! Nia ka aofia diena Usia tooa gi; Fasuia firua, Falea mai unidiena, Faadiena na taloa nia, God, faamouria a King! "God Save the King" (Afrikaans: God Red die Koning, God Red die Koningin when a Queen) was a co-national anthem of South Africa from 1938 until 1957, when it was formally replaced by "Die Stem van Suid-Afrika" as the sole national anthem. The latter served as a sort of de facto co-national anthem alongside the former until 1938. The melody has often been used, with lyrics slightly or significantly altered, for royal or national anthems of other countries. During the 19th century, it was used officially in Sweden, and in Iceland. It was also in official usage for brief periods in Imperial Russia, in Greece and in the Kingdom of Hawaii. In Germany, it was used by the kingdoms of Prussia, Hanover, Saxony and Bavaria, and was adopted as anthem of the German Empire ("Heil dir im Siegerkranz") after unification in 1871. It remains as the national anthem of Liechtenstein, and was used by Switzerland until 1961. About 140 composers have used the tune in their compositions. Ludwig van Beethoven composed a set of seven piano variations in the key of C major to the theme of "God Save the King", catalogued as WoO 78 (1802–1803). He also quotes it in his orchestral work Wellington's Victory. It is also the first song arranged in the collection WoO 157. Muzio Clementi used the theme to "God Save the King" in his Symphony No. 3 in G major, often called the "Great National Symphony", catalogued as WoO 34. Clementi paid a high tribute to his adopted homeland (the United Kingdom) where he grew up and stayed most of his lifetime. He based the symphony (about 1816–1824) on "God Save the King", which is hinted at earlier in the work, not least in the second movement, and announced by the trombones in the finale. Johann Christian Bach composed a set of variations on "God Save the King" for the finale to his sixth keyboard concerto (Op. 1) written c. 1763. Joseph Haydn was impressed by the use of "God Save the King" as a national anthem during his visit to London in 1794, and on his return to Austria composed a different tune, "Gott erhalte Franz den Kaiser" ("God Save Emperor Francis"), for the birthday of the last Holy Roman Emperor and Roman-German King, Francis II, which became the basis for the anthem of the later Austrian Empire, and ultimately for the German national anthem. Franz Liszt wrote a piano paraphrase on the anthem (S.259 in the official catalogue, c. 1841). Johann Strauss I quoted "God Save the Queen" in full at the end of his waltz "Huldigung der Königin Victoria von Grossbritannien" (Homage to Queen Victoria of Great Britain), Op. 103, where he also quoted "Rule, Britannia!" in full at the beginning of the piece. Siegfried August Mahlmann in the early 19th century wrote alternate lyrics to adapt the hymn for the Kingdom of Saxony, as "Gott segne Sachsenland" ("God Bless Saxony"). Christian Heinrich Rinck wrote two sets of variations on the anthem: the last movement of his Piano Trio, Op. 34, No. 1 (1815) is a set of five variations and a concluding coda; and Theme (Andante) and (12) Variations in C major on "Heil dir im Siegerkranz" (God Save the King), Op. 55. Heinrich Marschner used the anthem in his "Grande Ouverture solennelle", Op. 78 (1842). Gaetano Donizetti used this anthem in his opera "Roberto Devereux". Joachim Raff used this anthem in his Jubelouverture, Op. 103 (1864) dedicated to Adolf, Duke of Nassau, on the 25th anniversary of his reign. Gioachino Rossini used this anthem in the last scene of his Il viaggio a Reims, when all the characters, coming from many different European countries, sing a song which recalls their own homeland. Lord Sidney, bass, sings "Della real pianta" on the notes of "God Save the King". Samuel Ramey used to interpolate a spectacular virtuoso cadenza at the end of the song. Fernando Sor used the anthem in his 12 Studies, Op. 6: No. 10 in C major in the section marked 'Maestoso.' Arthur Sullivan quotes the anthem at the end of his ballet Victoria and Merrie England. Claude Debussy opens with a brief introduction of "God Save the King" in one of his Preludes, Hommage à S. Pickwick Esq. P.P.M.P.C.. The piece draws its inspiration from the main character of the Charles Dickens novel The Pickwick Papers. Niccolò Paganini wrote a set of highly virtuosic variations on "God Save the King" as his Op. 9. Max Reger wrote Variations and Fugue on 'Heil dir im Siegerkranz' (God Save the King) for organ in 1901 after the death of Queen Victoria. It does not have an opus number. A week before the Coronation Ode was due to be premiered at the June 1902 "Coronation Gala Concert" at Covent Garden (it was cancelled, owing to the King's illness), Sir Edward Elgar introduced an arrangement of "Land of Hope and Glory" as a solo song performed by Clara Butt at a "Coronation Concert" at the Albert Hall. Novello seized upon the prevailing patriotism and requested that Elgar arrange the National Anthem as an appropriate opening for a concert performed in front of the Court and numerous British and foreign dignitaries. This version for orchestra and chorus, which is enlivened by use of a cappella and marcato effects, was also performed at the opening of the British Empire Exhibition at Wembley on St. George's Day, 1924, and recorded under the composer's baton in 1928, with the London Symphony Orchestra and the Philharmonic Choir. Elgar also used the first verse of the anthem as the climax of a short "Civic Procession and Anthem", written to accompany the mayoral procession at the opening of the Hereford Music Festival on 4 September 1927. This premiere performance was recorded, and is today available on CD; the score was lost following the festival, and Elgar reconstructed it by ear from the recording. Carl Maria von Weber uses the "God Save the King" theme at the end of his "Jubel Overture". Giuseppe Verdi included "God Save the Queen" in his "Inno delle nazioni" (Hymn of the Nations), composed for the London 1862 International Exhibition. Benjamin Britten arranged "God Save the Queen" in 1961 for the Leeds Festival. This version has been programmed several times at the Last Night of the Proms. Charles Ives wrote Variations on "America" for organ in 1891 at age seventeen. It included a polytonal section in three simultaneous keys, though this was omitted from performances at his father's request, because "it made the boys laugh out loud". Ives was fond of the rapid pedal line in the final variation, which he said was "almost as much fun as playing baseball". The piece was not published until 1949; the final version includes an introduction, seven variations and a polytonal interlude. The piece was adapted for orchestra in 1963 by William Schuman. This version became popular during the bicentennial celebrations, and is often heard at pops concerts. Muthuswami Dikshitar (1776–1835), one of the musical trinity in South Indian classical (Carnatic) music composed some Sanskrit pieces set to Western tunes. These are in the raga Sankarabharanam and are referred to as "nottu swaras". Among these, the composition "Santatam Pahimam Sangita Shyamale" is set to the tune of "God Save the Queen". Sigismond Thalberg (1812–1871), Swiss composer and one of the most famous virtuoso pianists of the 19th century, wrote a fantasia on "God Save the Queen". Johan Nepomuk Hummel (1778–1837) wrote Variations on God Save the King in D major, Op. 10 and quoted the tune briefly in his Freudenfest-Ouverture in D major, S 148. Jan Ladislav Dussek wrote a set of theme with 5 variations for piano on God Save the King. Adolphe Blanc wrote a set of variations for piano six hands on this theme. Adrien-François Servais (1807–66) and Joseph Ghys (1801–48) wrote Variations brillantes et concertantes sur l'air "God Save the King", Op. 38, for violin and cello and performed it in London and St Petersburg. Georges Onslow (1784–1853) used the tune in his String Quartet No. 7 in G minor, Op. 9, second movement. Hans Huber used the melody ("Rufst du, mein Vaterland") in the first movement of his Symphony no 3 in C minor, Op. 118 ("Heroic"). Ferdinando Carulli used the melody in Fantaisie sur un air national anglais, for recorder & guitar, Op. 102. Louis Drouet composed "Variations on the air God save the King" for flute and piano. Gordon Jacob wrote a choral arrangement of "God Save the Queen" with a trumpet fanfare introduction, for the coronation of Queen Elizabeth II in 1953. Jimi Hendrix played an impromptu version of "God Save the Queen" to open his set at the Isle of Wight Festival 1970. Just before walking onto the stage, he asked "How does it [the anthem] go again?". Hendrix gave the same sort of distortion and improvisation of "God Save the Queen", as he had done with "The Star-Spangled Banner" at the Woodstock Festival, 1969. The rock band Queen recorded an instrumental version of "God Save the Queen" for their 1975 album A Night at the Opera. Guitarist Brian May adapted the melody using his distinctive layers of overdubbed electric guitars. This recorded version was played at the end of every Queen concert from the end of 1974 to 1986, while vocalist Freddie Mercury walked around the stage wearing a crown and a cloak on their Magic Tour in 1986. The song was played whilst all the Queen members would take their bows. On 3 June 2002, during the Queen's Golden Jubilee, Brian May performed the anthem on his Red Special electric guitar for Party at the Palace from the roof of Buckingham Palace which is featured on the 30th Anniversary DVD edition of A Night at the Opera. In 1977, the Sex Pistols recorded a song titled "God Save the Queen" in open reference to the National Anthem and the Queen's Silver Jubilee celebrations that year, with the song intending to stand for sympathy for the working class and resentment of the monarchy. They were banned from many venues, censored by mainstream media, and reached number 2 on the official U.K. singles charts and number 1 on the NME chart. A version of "God Save the Queen" by Madness features the melody of the song played on kazoos. It was included on the compilation album The Business – the Definitive Singles Collection. The anthem was the first piece of music played on a computer, and the first computer music to be recorded. Musical notes were first generated by a computer programmed by Alan Turing at the Computing Machine Laboratory of the University of Manchester in 1948. The first music proper, a performance of the National Anthem was programmed by Christopher Strachey on the Mark II Manchester Electronic Computer at same venue, in 1951. Later that year, short extracts of three pieces, the first being the National Anthem, were recorded there by a BBC outside broadcasting unit: the other pieces being "Baa Baa Black Sheep", and "In the Mood". Researchers at the University of Canterbury, Christchurch restored the acetate master disc in 2016 and the results may be heard on SoundCloud. The philosopher and reformer Jeremy Bentham praised "God Save the King" in 1796: "the melody recommending itself by beauty to the most polished ears, and by its simplicity to the rudest ear. A song of this complexion, implanted by the habit of half a century in the mass of popular sentiment, can not be refused a place in the inventory of the national blessings." Ludwig van Beethoven wrote "I have to show the English a little of what a blessing 'God Save the King' is". There have been calls within the UK for a new national anthem, whether it be for the United Kingdom itself, Britain and/or England (which all currently use "God Save the King"). There are many reasons people cite for wishing for a new national anthem, such as: from a non-religious standpoint claims of "God Save the King" being long outdated and irrelevant in the 21st century, rejection of odes to promoting war and imperialism and rejection of praising the monarchy from a republican perspective. A further reason is that England has no anthem of its own for sporting contests and the like, whereas Scotland, Northern Ireland, and Wales have unofficial anthems; "Flower of Scotland", "Londonderry Air", and "Hen Wlad Fy Nhadau" while England tends to use "God Save the King" exclusively and also unofficially. Notes References
[ { "paragraph_id": 0, "text": "\"God Save the King\" (alternatively \"God Save the Queen\" when the British monarch is female) is the national anthem of the United Kingdom and the royal anthem of each of the British Crown Dependencies, one of two national anthems of New Zealand since 1977, and the royal anthem of most Commonwealth realms. The author of the tune is unknown and it may originate in plainchant, but an attribution to the composer John Bull has sometimes been made.", "title": "" }, { "paragraph_id": 1, "text": "In countries not part of the British Empire, the tune of \"God Save the King\" has provided the basis for various patriotic songs, though still generally connected with royal ceremony. The melody continues to be used for the national anthem of Liechtenstein, \"Oben am jungen Rhein\", and the royal anthem of Norway, \"Kongesangen\". The melody is used for the American patriotic song \"My Country, 'Tis of Thee\" (also known as \"America\"). The melody was also used for the national anthem \"Heil dir im Siegerkranz\" (\"Hail to thee in the Victor's Crown\") of the Kingdom of Prussia from 1795 and of the German Empire from 1871 to 1918 and as \"The Prayer of Russians\", the imperial anthem of Russia from 1816 to 1833. In Switzerland, it is known as \"Rufst du, mein Vaterland\".", "title": "" }, { "paragraph_id": 2, "text": "Beyond its first verse, which is consistent, \"God Save the King\" has many historic and extant versions. Since its first publication, different verses have been added and taken away and, even today, different publications include various selections of verses in various orders. In general, only one verse is sung. Sometimes two verses are sung and, on certain occasions, three.", "title": "" }, { "paragraph_id": 3, "text": "The entire composition is the musical salute for the monarch and royal consort, while other members of the royal family who are entitled to royal salute (such as the Prince of Wales, along with his spouse) receive just the first six bars. The first six bars also form all or part of the viceregal salute in some Commonwealth realms other than the UK (e.g., in Canada, governors general and lieutenant governors at official events are saluted with the first six bars of \"God Save the King\" followed by the first four and last four bars of \"O Canada\"), as well as the salute given to governors of British overseas territories.", "title": "" }, { "paragraph_id": 4, "text": "In The Oxford Companion to Music, Percy Scholes points out the similarities to an early plainsong melody, although the rhythm is very distinctly that of a galliard, and he gives examples of several such dance tunes that bear a striking resemblance to \"God Save the King\". Scholes quotes a keyboard piece by John Bull (1619) which has some similarities to the modern tune, depending on the placing of accidentals which at that time were unwritten in certain cases and left to the discretion of the player (see musica ficta). He also points to several pieces by Henry Purcell, one of which includes the opening notes of the modern tune, setting the words \"God Save the King\". Nineteenth-century scholars and commentators mention the widespread belief that an old Scots carol, \"Remember O Thou Man\", was the source of the tune.", "title": "History" }, { "paragraph_id": 5, "text": "The first published version that resembles the present song appeared in 1744, with no title but the heading \"For two voices\", in an anthology originally named Harmonia Britannia but changed after only a few copies had been printed to Thesaurus Musicus. When the Jacobite pretender Charles Edward Stuart led the 1745 rising, the song spread among those loyal to King George II. The tune published in The Gentleman's Magazine in 1745 departs from that used today at several points, one as early as the first bar, but is otherwise clearly a strong relative of the contemporary anthem. It was recorded as being sung in London theatres in 1745, with, for example, Thomas Arne writing a setting of the tune for the Drury Lane Theatre.", "title": "History" }, { "paragraph_id": 6, "text": "Scholes' analysis includes mention of \"untenable\" and \"doubtful\" claims, as well as \"an American misattribution\". Some of these are:", "title": "History" }, { "paragraph_id": 7, "text": "Scholes recommends the attribution \"traditional\" or \"traditional; earliest known version by John Bull (1562–1628)\". The English Hymnal (musical editor Ralph Vaughan Williams) gives no attribution, stating merely \"17th or 18th cent.\"", "title": "History" }, { "paragraph_id": 8, "text": "Like many aspects of British constitutional life, \"God Save the King\" derives its official status from custom and use, not from Royal Proclamation or Act of Parliament. The variation in the UK of the lyrics to \"God Save the King\" is the oldest amongst those currently used, and forms the basis on which all other versions used throughout the Commonwealth are formed; though, again, the words have varied over time.", "title": "Use in the United Kingdom" }, { "paragraph_id": 9, "text": "England has no official national anthem of its own; \"God Save the King\" is treated as the English national anthem when England is represented at sporting events (though there are some exceptions to this rule, such as cricket where \"Jerusalem\" is used). There is a movement to establish an English national anthem, with Blake and Parry's \"Jerusalem\" and Elgar's \"Land of Hope and Glory\" among the top contenders. Wales has a single official national anthem, \"Hen Wlad Fy Nhadau\" (Land of my Fathers) while Scotland uses unofficial anthems (\"Scotland the Brave\" was traditionally used until the 1990s; since then, \"Flower of Scotland\" is more commonly used), these anthems are used formally at state and national ceremonies as well as international sporting events such as football and rugby union matches. On all occasions in Northern Ireland, \"God Save the King\" is still used as the official anthem.", "title": "Use in the United Kingdom" }, { "paragraph_id": 10, "text": "In 2001, it was claimed that the phrase \"No surrender\" was occasionally sung in the bridge before \"Send her victorious\" by England football fans at matches.", "title": "Use in the United Kingdom" }, { "paragraph_id": 11, "text": "Since 2003, \"God Save the King\", considered an all-inclusive anthem for Great Britain and Northern Ireland, as well as other countries within the Commonwealth, has been dropped from the Commonwealth Games. Northern Irish athletes receive their gold medals to the tune of the \"Londonderry Air\", popularly known as \"Danny Boy\". In 2006, English winners heard Elgar's \"Pomp and Circumstance March No. 1\", usually known as \"Land of Hope and Glory\", but after a poll conducted by the Commonwealth Games Council for England prior to the 2010 Games, \"Jerusalem\" was adopted as England's new Commonwealth Games anthem. In sports in which the UK competes as one nation, most notably as Great Britain at the Olympics, the anthem is used to represent anyone or any team that comes from the United Kingdom.", "title": "Use in the United Kingdom" }, { "paragraph_id": 12, "text": "The phrase \"God Save the King\" is much older than the song, appearing, for instance, several times in the King James Bible. A text based on the 1st Book of Kings Chapter 1: verses 38–40, \"And all the people rejoic'd, and said: God save the King! Long live the King! May the King live for ever, Amen\", has been sung and proclaimed at every coronation since that of King Edgar in 973. Scholes says that as early as 1545 \"God Save the King\" was a watchword of the Royal Navy, with the response being \"Long to reign over us\". He also notes that the prayer read in churches on anniversaries of the Gunpowder Plot includes words which might have formed part of the basis for the former standard verse \"Scatter our enemies...assuage their malice and confound their devices\".", "title": "Use in the United Kingdom" }, { "paragraph_id": 13, "text": "In 1745, The Gentleman's Magazine published \"God save our lord the king: A new song set for two voices\", describing it \"As sung at both Playhouses\" (the Theatres Royal at Drury Lane and Covent Garden). Traditionally, the first performance was thought to have been in 1745, when it was sung in support of King George II, after his defeat at the Battle of Prestonpans by the army of Charles Edward Stuart, son of James Francis Edward Stuart, the Jacobite claimant to the British throne.", "title": "Use in the United Kingdom" }, { "paragraph_id": 14, "text": "It is sometimes claimed that, ironically, the song was originally sung in support of the Jacobite cause: the word \"send\" in the line \"Send him victorious\" could imply that the king was absent. However, the Oxford English Dictionary cites examples of \"[God] send (a person) safe, victorious, etc.\" meaning \"God grant that he may be safe, etc.\". There are also examples of early 18th-century drinking glasses which are inscribed with a version of the words and were apparently intended for drinking the health of King James II and VII.", "title": "Use in the United Kingdom" }, { "paragraph_id": 15, "text": "Scholes acknowledges these possibilities but argues that the same words were probably being used by both Jacobite and Hanoverian supporters and directed at their respective kings.", "title": "Use in the United Kingdom" }, { "paragraph_id": 16, "text": "In 1902, the musician William Hayman Cummings, quoting mid-18th century correspondence between Charles Burney and Sir Joseph Banks, suggested that the words had been based on a Latin verse composed for King James II at the Chapel Royal.", "title": "Use in the United Kingdom" }, { "paragraph_id": 17, "text": "O Deus optime Salvum nunc facito Regem nostrum Sic laeta victoria Comes et gloria Salvum iam facitoe Tu dominum.", "title": "Use in the United Kingdom" }, { "paragraph_id": 18, "text": "God save our gracious King! Long live our noble King! God save the King! Send him victorious, Happy and glorious, Long to reign over us: God save the King! Thy choicest gifts in store, On him be pleased to pour; Long may he reign: May he defend our laws, And ever give us cause, To sing with heart and voice, God save the King!", "title": "Use in the United Kingdom" }, { "paragraph_id": 19, "text": "When the monarch of the time is female, \"King\" is replaced with \"Queen\" and all masculine pronouns are replaced with their feminine equivalents.", "title": "Use in the United Kingdom" }, { "paragraph_id": 20, "text": "There is no definitive version of the lyrics. However, the version consisting of the two above verses has the best claim to be regarded as the \"standard\" British version as referenced on the Royal Family website The song with an additional verse appears not only in the 1745 Gentleman's Magazine, but also in publications such as The Book of English Songs: From the Sixteenth to the Nineteenth Century (1851), National Hymns: How They Are Written and How They Are Not Written (1861), Household Book of Poetry (1882), and Hymns Ancient and Modern, Revised Version (1982).", "title": "Use in the United Kingdom" }, { "paragraph_id": 21, "text": "The same version with appears in publications including Scouting for Boys (1908), and on the Royal Family website.", "title": "Use in the United Kingdom" }, { "paragraph_id": 22, "text": "According to Alan Michie's The Crown and the People, which was published in 1952, after the death of King George VI but before the coronation of Queen Elizabeth II, when the first General Assembly of the United Nations was held in London in January 1946 the King, in honour of the occasion, \"ordered the belligerent imperious second stanza of 'God Save the King' to be rewritten to bring it more into the spirit of the brotherhood of nations.\"", "title": "Use in the United Kingdom" }, { "paragraph_id": 23, "text": "In the UK, the first verse is typically sung alone, even on official occasions, although the second verse is sometimes sung in addition on certain occasions such as during the opening ceremonies of the 2012 Summer Olympics, 2012 Summer Paralympics, and the 2022 Commonwealth Games and usually at the Last Night of the Proms. The second verse was also sung during the Coronation of King Charles III and Queen Camilla.", "title": "Use in the United Kingdom" }, { "paragraph_id": 24, "text": "The standard version of the melody and its key of G major are still those of the originally published version, although the start of the anthem is often signalled by an introductory timpani roll of two bars length. The bass line of the standard version differs little from the second voice part shown in the original, and there is a standard version in four-part harmony for choirs. The first three lines (six bars of music) are soft, ending with a short crescendo into \"Send him victorious\", and then is another crescendo at \"over us:\" into the final words \"God save the King\".", "title": "Use in the United Kingdom" }, { "paragraph_id": 25, "text": "In the early 20th century there existed a Military Band version in the higher key of B♭, because it was easier for brass instruments to play in that key, though it had the disadvantage of being more difficult to sing: however now most Bands play it in the correct key of concert G.", "title": "Use in the United Kingdom" }, { "paragraph_id": 26, "text": "Since 1953, the anthem is sometimes preceded by a fanfare composed by Gordon Jacob for the coronation of Queen Elizabeth II.", "title": "Use in the United Kingdom" }, { "paragraph_id": 27, "text": "There have been several attempts to rewrite the words. In the nineteenth century there was some lively debate about the national anthem as verse two was considered by some to be slightly offensive in its use of the phrase \"scatter her enemies\". Some thought it placed better emphasis on the respective power of Parliament and the Crown to change \"her enemies\" to \"our enemies\"; others questioned the theology and proposed \"thine enemies\" instead. Sydney G. R. Coles wrote a completely new version, as did Canon F. K. Harford.", "title": "Use in the United Kingdom" }, { "paragraph_id": 28, "text": "An additional stanza sung second was previously considered part of the standard lyrics in the UK:", "title": "Use in the United Kingdom" }, { "paragraph_id": 29, "text": "O Lord our God arise Scatter his enemies And make them fall Confound their politics Frustrate their knavish tricks On thee our hopes we fix God save us all", "title": "Use in the United Kingdom" }, { "paragraph_id": 30, "text": "These lyrics appeared in some works of literature prior the coronation of Queen Elizabeth II, but only the version mentioned in the Standard Version in the United Kingdom was used at her Coronation, and ever since on all official occasions when two stanzas have been sung.", "title": "Use in the United Kingdom" }, { "paragraph_id": 31, "text": "In 1836, William Edward Hickson wrote an alternative version, of which the first, third, and fourth verses gained some currency when they were appended to the national anthem in The English Hymnal (1906). The fourth Hickson verse was sung after the traditional first verse at Queen Elizabeth II's Golden Jubilee National Service of Thanksgiving in 2002, and during the raising of the Union Flag during the 2008 Summer Olympics closing ceremony, in which London took the baton from Beijing to host the 2012 Summer Olympics. This verse is currently used as the final verse by the Church of Scotland.", "title": "Use in the United Kingdom" }, { "paragraph_id": 32, "text": "God bless our native land! May Heav'n's protecting hand Still guard our shore: May peace his power extend, Foe be transformed to friend, And Britain's rights depend On war no more. O Lord, our monarch bless With strength and righteousness: Long may he reign: His heart inspire and move With wisdom from above; And in a nation's love His throne maintain. May just and righteous laws Uphold the public cause, And bless our Isle: Home of the brave and free, Thou land of Liberty, We pray that still on thee Kind Heav'n may smile. Not in this land alone, But be God's mercies known From shore to shore: Lord make the nations see That men should brothers be, And form one family The wide world o'er.", "title": "Use in the United Kingdom" }, { "paragraph_id": 33, "text": "To mark the celebration of the Diamond Jubilee of Queen Victoria, a modified version of the second verse was written by the Dean of Rochester, the Very Reverend Samuel Reynolds Hole. A four-part harmony setting was then made by Frederick Bridge, and published by Novello.", "title": "Use in the United Kingdom" }, { "paragraph_id": 34, "text": "O Lord Our God Arise, Scatter her enemies, Make wars to cease; Keep us from plague and dearth, Turn thou our woes to mirth; And over all the earth Let there be peace.", "title": "Use in the United Kingdom" }, { "paragraph_id": 35, "text": "The Musical Times commented: \"There are some conservative minds who may regret the banishment of the 'knavish tricks' and aggressive spirit of the discarded verse, but it must be admitted that Dean Hole's lines are more consonant with the sentiment of modern Christianity.\" Others reactions were more negative, one report describing the setting as \"unwarrantable liberties...worthy of the severest reprobation\", with \"too much of a Peace Society flavour about it...If we go about pleading for peace, other nations will get it into their heads that we are afraid of fighting.\" Perhaps unsurprisingly, Hole's version failed to replace the existing verse permanently.", "title": "Use in the United Kingdom" }, { "paragraph_id": 36, "text": "A less militaristic version of the song, titled \"Official peace version, 1919\", was first published in the hymn book Songs of Praise in 1925. This was \"official\" in the sense that it was approved by the British Privy Council in 1919. However, despite being reproduced in some other hymn books, it is largely unknown today.", "title": "Use in the United Kingdom" }, { "paragraph_id": 37, "text": "God save our gracious King! Long live our noble King! God save the King! Send him victorious Happy and glorious Long to reign over us God save the King! One realm of races four Blest more and ever more God save our land! Home of the brave and free Set in the silver sea True nurse of chivalry God save our land! Of many a race and birth From utmost ends of earth God save us all! Bid strife and hatred cease Bid hope and joy increase Spread universal peace God save us all!", "title": "Use in the United Kingdom" }, { "paragraph_id": 38, "text": "Around 1745, anti-Jacobite sentiment was captured in a verse appended to the song, with a prayer for the success of Field Marshal George Wade's army then assembling at Newcastle. These words attained some short-term use, although they did not appear in the published version in the October 1745 Gentleman's Magazine. This verse was first documented as an occasional addition to the original anthem by Richard Clark in 1814, and was also mentioned in a later article on the song, published by the Gentleman's Magazine in October 1836. Therein, it is presented as an \"additional verse... though being of temporary application only... stored in the memory of an old friend... who was born in the very year 1745, and was thus the associate of those who heard it first sung\", the lyrics given being:", "title": "Use in the United Kingdom" }, { "paragraph_id": 39, "text": "Lord, grant that Marshal Wade May by thy mighty aid Victory bring; May he sedition hush, and like a torrent rush Rebellious Scots to crush! God save the King!", "title": "Use in the United Kingdom" }, { "paragraph_id": 40, "text": "The 1836 article and other sources make it clear that this verse was quickly abandoned after 1745 (Wade was replaced as Commander-in-Chief within a year following the Jacobite invasion of England), and it was certainly not used when the song became accepted as the British national anthem in the 1780s and 1790s. It was included as an integral part of the song in the Oxford Book of Eighteenth-Century Verse of 1926, although erroneously referencing the \"fourth verse\" to the Gentleman's Magazine article of 1745.", "title": "Use in the United Kingdom" }, { "paragraph_id": 41, "text": "On the opposing side, Jacobite beliefs were demonstrated in an alternative verse used during the same period:", "title": "Use in the United Kingdom" }, { "paragraph_id": 42, "text": "God bless the prince, I pray, God bless the prince, I pray, Charlie I mean; That Scotland we may see Freed from vile Presbyt'ry, Both George and his Feckie, Ever so, Amen.", "title": "Use in the United Kingdom" }, { "paragraph_id": 43, "text": "In May 1800, following an attempt to assassinate King George III at London's Drury Lane theatre, playwright Richard Sheridan immediately composed an additional verse, which was sung from the stage the same night:", "title": "Use in the United Kingdom" }, { "paragraph_id": 44, "text": "From every latent foe From the assassin's blow God save the King O'er him Thine arm extend For Britain's sake defend Our father, king, and friend God save the King!", "title": "Use in the United Kingdom" }, { "paragraph_id": 45, "text": "Various other attempts were made during the eighteenth and nineteenth centuries to add verses to commemorate particular royal or national events. For example, according to Fitzroy Maclean, when Jacobite forces bypassed Wade's force and reached Derby, but then retreated and when their garrison at Carlisle Castle surrendered to a second government army led by King George's son, the Duke of Cumberland, another verse was added. Other short-lived verses were notably anti-French, such as the following, quoted in the book Handel by Edward J. Dent:", "title": "Use in the United Kingdom" }, { "paragraph_id": 46, "text": "From France and Pretender Great Britain defend her, Foes let them fall; From foreign slavery, Priests and their knavery, And Popish Reverie, God save us all.", "title": "Use in the United Kingdom" }, { "paragraph_id": 47, "text": "However, none of these additional verses survived into the twentieth century. Updated \"full\" versions including additional verses have been published more recently, including the standard three verses, Hickson's fourth verse, Sheridan's verse and the Marshal Wade verse.", "title": "Use in the United Kingdom" }, { "paragraph_id": 48, "text": "A version from 1794 composed by the American republican and French citizen Joel Barlow celebrated the power of the guillotine to liberate:", "title": "Use in the United Kingdom" }, { "paragraph_id": 49, "text": "God save the Guillotine Till England's King and Queen Her power shall prove: Till each appointed knob Affords a clipping job Let no vile halter rob The Guillotine France, let thy trumpet sound – Tell all the world around How Capet fell; And when great George's poll Shall in the basket roll, Let mercy then control The Guillotine When all the sceptre'd crew Have paid their Homage, due The Guillotine Let Freedom's flag advance Till all the world, like France O'er tyrants' graves shall dance And peace begin.", "title": "Use in the United Kingdom" }, { "paragraph_id": 50, "text": "The style most commonly heard in official performances was proposed as the \"proper interpretation\" by King George V, who considered himself something of an expert (in view of the number of times he had heard it). An Army Order was duly issued in 1933, which laid down regulations for tempo, dynamics and orchestration. This included instructions such as that the opening \"six bars will be played quietly by the reed band with horns and basses in a single phrase. Cornets and side-drum are to be added at the little scale-passage leading into the second half of the tune, and the full brass enters for the last eight bars\". The official tempo for the opening section is a metronome setting of 60, with the second part played in a broader manner, at a metronome setting of 52. In recent years the prescribed sombre-paced introduction is often played at a faster and livelier tempo.", "title": "Use in the United Kingdom" }, { "paragraph_id": 51, "text": "Until the latter part of the 20th century, theatre and concert goers were expected to stand while the anthem was played after the conclusion of a show. In cinemas this brought a tendency for audiences to rush out while the end credits played to avoid this formality. (This can be seen in the 1972 Dad's Army episode \"A Soldier's Farewell\".)", "title": "Use in the United Kingdom" }, { "paragraph_id": 52, "text": "The anthem continues to be played at some traditional events such as Wimbledon, Royal Variety Performance, the Edinburgh Tattoo, Royal Ascot, Henley Royal Regatta and The Proms as well as at Royal events.", "title": "Use in the United Kingdom" }, { "paragraph_id": 53, "text": "The anthem was traditionally played at close-down on the BBC, and with the introduction of commercial television to the UK this practice was adopted by some ITV companies (with the notable exceptions of Granada, Thames Television, Central Television, Border Television, and Yorkshire Television). BBC Two also never played the anthem at close-down, and ITV dropped the practice in the late 1980s when the network switched to 24 hour broadcasting, but it continued on BBC One until 8 November 1997 (thereafter BBC One began to simulcast with BBC News after end of programmes). The tradition is carried on, however, by BBC Radio 4, which plays the anthem each night as a transition piece between the end of the Radio 4 broadcasting and the move to BBC World Service. BBC Radio 4 and BBC Radio 2 also play the National Anthem just before the 0700 and 0800 news bulletins on the actual and official birthdays of the King and the birthdays of senior members of the Royal Family. On 17 January 2022, the GB News Channel started playing the anthem at 05:59 every morning at the beginning of the day's programming.", "title": "Use in the United Kingdom" }, { "paragraph_id": 54, "text": "The UK's national anthem usually prefaces The Sovereign's Christmas Message (although in 2007 it appeared at the end, taken from a recording of the 1957 television broadcast), and important royal announcements, such as of royal deaths, when it is played in a slower, sombre arrangement.", "title": "Use in the United Kingdom" }, { "paragraph_id": 55, "text": "Frequently, when an anthem is needed for one of the constituent countries of the United Kingdom – at an international sporting event, for instance – an alternative song is used:", "title": "Use in the United Kingdom" }, { "paragraph_id": 56, "text": "The London 2012 Olympics Opening Ceremony provided a conscious use of three of the four anthems listed above; the ceremony began with a rendition of the first verse of \"Jerusalem\", before a choir in Northern Ireland sang \"Danny Boy\" and a choir in Edinburgh performed part of \"Flower of Scotland\". Notably, Wales was represented by the hymn \"Bread of Heaven\", not \"Hen Wlad Fy Nhadhau\".", "title": "Use in the United Kingdom" }, { "paragraph_id": 57, "text": "In April 2007, there was an early day motion, number 1319, to the British Parliament to propose that there should be a separate England anthem: \"That this House ... believes that all English sporting associations should adopt an appropriate song that English sportsmen and women, and the English public, would favour when competing as England\". An amendment (EDM 1319A3) was proposed by Evan Harris that the song \"should have a bit more oomph than God Save The Queen and should also not involve God.\"", "title": "Use in the United Kingdom" }, { "paragraph_id": 58, "text": "For more information see also:", "title": "Use in the United Kingdom" }, { "paragraph_id": 59, "text": "On 3 November 2016, Conservative MP Andrew Rosindell argued for a return to the broadcasting of \"God Save the Queen\" at the end of BBC One transmissions each day. The practice was dropped in 1997 (ostensibly due to BBC One adopting 24-hour broadcasting by simulcasting BBC News 24 overnight, rendering closedown obsolete).", "title": "Use in the United Kingdom" }, { "paragraph_id": 60, "text": "Since 18 January 2022, GB News has played \"God Save the Queen\" at the start of live programming every day.", "title": "Use in the United Kingdom" }, { "paragraph_id": 61, "text": "\"God Save the King\" was exported around the world via the expansion of the British Empire, serving as each country's national anthem. Throughout the Empire's evolution into the Commonwealth of Nations, the song declined in use in most states which became independent. In New Zealand, it remains one of the official national anthems.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 62, "text": "In Australia, the song has standing through a Royal Proclamation issued by Governor-General Sir Ninian Stephen on 19 April 1984. It declared \"God Save the Queen\" to be the Royal Anthem and that it is to be played when the Australian monarch or a member of the Royal Family is present, though not exclusively in such circumstances. The same proclamation made \"Advance Australia Fair\" the national anthem and the basis for the \"Vice-Regal Salute\" (the first four and last two bars of the anthem).", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 63, "text": "Prior to 1984, \"God Save the Queen\" was the national anthem of Australia. In 1975, former Prime Minister Gough Whitlam, dismissed by Governor-General Sir John Kerr, alluded to the anthem in his comment \"Well may we say 'God save the Queen', because nothing will save the Governor-General!\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 64, "text": "\"God Save the King\" is the royal anthem of Belize. The Vice-Regal Salute to the Belizean governor general is composed of the first verse of \"God Save the King\" and the chorus of National Anthem, \"Land of the Free\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 65, "text": "By convention, \"God Save the King\" (French: Dieu Sauve le Roi, Dieu Sauve la Reine when a Queen) is the royal anthem of Canada. It is sometimes played or sung together with the national anthem, \"O Canada\", at private and public events organised by groups such as the Government of Canada, the Royal Canadian Legion, police services, and loyal groups. The governor general and provincial lieutenant governors are accorded the \"Viceregal Salute\", comprising the first three lines of \"God Save the King\", followed by the first and last lines of \"O Canada\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 66, "text": "\"God Save the King\" has been sung in Canada since the late 1700s and by the mid 20th century was, along with \"O Canada\", one of the country's two de facto national anthems, the first and last verses of the standard British version being used. By-laws and practices governing the use of either song during public events in municipalities varied; in Toronto, \"God Save the King\" was employed, while in Montreal it was \"O Canada\". Prime Minister Lester B. Pearson in 1964 said one song would have to be chosen as the country's national anthem and, three years later, he advised Governor General Georges Vanier to appoint the Special Joint Committee of the Senate and House of Commons on the National and Royal Anthems. Within two months, on 12 April 1967, the committee presented its conclusion that \"God Save the Queen\" (as this was during the reign of Queen Elizabeth II), whose music and lyrics were found to be in the public domain, should be designated as the royal anthem of Canada and \"O Canada\" as the national anthem, one verse from each, in both official languages, to be adopted by parliament. The group was then charged with establishing official lyrics for each song; for \"God Save the Queen\", the English words were those inherited from the United Kingdom and the French words were taken from those that had been adopted in 1952 for the coronation of Elizabeth II. When the bill pronouncing \"O Canada\" as the national anthem was put through parliament, the joint committee's earlier recommendations regarding \"God Save the Queen\" were not included.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 67, "text": "The Department of National Defence and the Canadian Forces regulates that \"God Save the King\" be played as a salute to the monarch of Canada and other members of the Canadian royal family, though it may also be used as a hymn or prayer. The words are not to be sung when the song is played as a military royal salute and is abbreviated to the first three lines, while arms are being presented. Elizabeth II stipulated that the arrangement in G major by Lieutenant Colonel Basil H. Brown be used in Canada. The authorised version to be played by pipe bands is Mallorca.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 68, "text": "\"God Save the King\" has been translated into French, but this translation does not fit the music and cannot be sung. Nevertheless, this translation has been adapted into a bilingual version that can be sung when the monarch is male, and has been sung during public ceremonies, such as the National Remembrance Day Ceremony at the National War Memorial in Ottawa:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 69, "text": "Dieu sauve notre Roi, Notre gracieux Roi, Vive le Roi ! Send him victorious, Happy and glorious; Long to reign over us, God save the King!", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 70, "text": "A special singable one-verse adaptation is used when a singable French version is required, such as when royalty is present at an official occasion:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 71, "text": "Dieu sauve notre Roi! Notre gracieux Roi ! Vive le Roi! Rends-lui victorieux, Heureux et glorieux, Que soit long son règne sur nous, Vive le Roi!", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 72, "text": "There is a special Canadian verse in English which was once commonly sung in addition to the two standing verses:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 73, "text": "Our loved Dominion bless With peace and happiness From shore to shore; And let our Empire be Loyal, united, free, True to herself and Thee For evermore.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 74, "text": "\"God Save the King\" is used by both Bailiwicks of the Channel Islands as an alternative to their respective national anthems. Its use case and popular version is generally similar to how it is used in the United Kingdom. However, the anthem has been translated in Jèrriais:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 75, "text": "Dgieu sauve not' Duc, Longue vie à not' Duc, Dgieu sauve la Rei! Rends-la victorieuse Jouaiyeuse et glorieuse; Qu'on règne sus nous heûtheuse – Dgieu sauve la Rei! Tes dons les pus précieux, Sus yi vèrse des cieux, Dgieu sauve la Rei! Qu'on défende nous louais Et d'un tchoeu et d'eune vouaix Jé chantons à janmais Dgieu sauve la Rei!", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 76, "text": "The meaning is broadly similar to the first paragraph of the English version, except for the first two lines which say \"God save our Duke\" and \"Long live our Duke\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 77, "text": "\"God Save the King\" was the sole official national anthem until 1977 when \"God Defend New Zealand\" was added as a second. Since then, \"God Save the King\" is most often only played when the sovereign, governor-general or other member of the Royal Family is present, or on some occasions such as Anzac Day. The Māori-language version was written by Edward Marsh Williams under the title, \"E te atua tohungia te kuini\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 78, "text": "There is a special New Zealand verse in English which was once commonly sung to replace the second and third verses:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 79, "text": "Not on this land alone But be God's mercies known From shore to shore. Lord, make the nations see That we in liberty Should form one family The wide world o'er.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 80, "text": "All verses of \"God Save the King\" have been translated into Māori. The first verse is shown below:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 81, "text": "Me tohu e te Atua To matou Kīngi pai: Kia ora ia Meinga kia maia ia, Kia hari nui, kia koa, Kia kingi tonu ia, Tau tini noa.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 82, "text": "When Rhodesia issued its Unilateral Declaration of Independence from the UK on 11 November 1965, it did so while still maintaining loyalty to Queen Elizabeth II as the Rhodesian head of state, despite the non-recognition of the Rhodesian government by the United Kingdom and the United Nations; \"God Save the Queen\" therefore remained the Rhodesian national anthem. This was supposed to demonstrate the continued allegiance of the Rhodesian people to the monarch, but the retention in Rhodesia of a song so associated with the UK while the two countries were at loggerheads regarding its constitutional status caused Rhodesian state occasions to have \"a faintly ironic tone\", in the words of The Times. Nevertheless, \"God Save the Queen\" remained Rhodesia's national anthem until March 1970, when the country formally declared itself a republic. \"Rise, O Voices of Rhodesia\" was adopted in its stead in 1974 and remained in use until the country returned to the UK's control in December 1979. Since the internationally recognised independence of the Republic of Zimbabwe in April 1980, \"God Save the King\" has had no official status there.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 83, "text": "\"God Save the King\" is the royal anthem of Saint Vincent and the Grenadines. It is played on royal and vice-regal occasions. The Vice-Regal Salute to the governor general is composed of the chorus of \"God Save the King\" and followed by that of the National Anthem, \"Saint Vincent, Land so Beautiful\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 84, "text": "All proclamations in Saint Vincent and the Grenadines end with the phrase: \"God Save the King\".", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 85, "text": "\"God Save the King\" was translated into the Lau language in 1945:", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 86, "text": "God, ka faamouria a King! Nia ka aofia diena Usia tooa gi; Fasuia firua, Falea mai unidiena, Faadiena na taloa nia, God, faamouria a King!", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 87, "text": "\"God Save the King\" (Afrikaans: God Red die Koning, God Red die Koningin when a Queen) was a co-national anthem of South Africa from 1938 until 1957, when it was formally replaced by \"Die Stem van Suid-Afrika\" as the sole national anthem. The latter served as a sort of de facto co-national anthem alongside the former until 1938.", "title": "Use in other Commonwealth countries" }, { "paragraph_id": 88, "text": "The melody has often been used, with lyrics slightly or significantly altered, for royal or national anthems of other countries.", "title": "Use elsewhere" }, { "paragraph_id": 89, "text": "During the 19th century, it was used officially in Sweden, and in Iceland. It was also in official usage for brief periods in Imperial Russia, in Greece and in the Kingdom of Hawaii.", "title": "Use elsewhere" }, { "paragraph_id": 90, "text": "In Germany, it was used by the kingdoms of Prussia, Hanover, Saxony and Bavaria, and was adopted as anthem of the German Empire (\"Heil dir im Siegerkranz\") after unification in 1871. It remains as the national anthem of Liechtenstein, and was used by Switzerland until 1961.", "title": "Use elsewhere" }, { "paragraph_id": 91, "text": "About 140 composers have used the tune in their compositions.", "title": "Musical adaptations" }, { "paragraph_id": 92, "text": "Ludwig van Beethoven composed a set of seven piano variations in the key of C major to the theme of \"God Save the King\", catalogued as WoO 78 (1802–1803). He also quotes it in his orchestral work Wellington's Victory. It is also the first song arranged in the collection WoO 157.", "title": "Musical adaptations" }, { "paragraph_id": 93, "text": "Muzio Clementi used the theme to \"God Save the King\" in his Symphony No. 3 in G major, often called the \"Great National Symphony\", catalogued as WoO 34. Clementi paid a high tribute to his adopted homeland (the United Kingdom) where he grew up and stayed most of his lifetime. He based the symphony (about 1816–1824) on \"God Save the King\", which is hinted at earlier in the work, not least in the second movement, and announced by the trombones in the finale.", "title": "Musical adaptations" }, { "paragraph_id": 94, "text": "Johann Christian Bach composed a set of variations on \"God Save the King\" for the finale to his sixth keyboard concerto (Op. 1) written c. 1763.", "title": "Musical adaptations" }, { "paragraph_id": 95, "text": "Joseph Haydn was impressed by the use of \"God Save the King\" as a national anthem during his visit to London in 1794, and on his return to Austria composed a different tune, \"Gott erhalte Franz den Kaiser\" (\"God Save Emperor Francis\"), for the birthday of the last Holy Roman Emperor and Roman-German King, Francis II, which became the basis for the anthem of the later Austrian Empire, and ultimately for the German national anthem.", "title": "Musical adaptations" }, { "paragraph_id": 96, "text": "Franz Liszt wrote a piano paraphrase on the anthem (S.259 in the official catalogue, c. 1841).", "title": "Musical adaptations" }, { "paragraph_id": 97, "text": "Johann Strauss I quoted \"God Save the Queen\" in full at the end of his waltz \"Huldigung der Königin Victoria von Grossbritannien\" (Homage to Queen Victoria of Great Britain), Op. 103, where he also quoted \"Rule, Britannia!\" in full at the beginning of the piece.", "title": "Musical adaptations" }, { "paragraph_id": 98, "text": "Siegfried August Mahlmann in the early 19th century wrote alternate lyrics to adapt the hymn for the Kingdom of Saxony, as \"Gott segne Sachsenland\" (\"God Bless Saxony\").", "title": "Musical adaptations" }, { "paragraph_id": 99, "text": "Christian Heinrich Rinck wrote two sets of variations on the anthem: the last movement of his Piano Trio, Op. 34, No. 1 (1815) is a set of five variations and a concluding coda; and Theme (Andante) and (12) Variations in C major on \"Heil dir im Siegerkranz\" (God Save the King), Op. 55.", "title": "Musical adaptations" }, { "paragraph_id": 100, "text": "Heinrich Marschner used the anthem in his \"Grande Ouverture solennelle\", Op. 78 (1842).", "title": "Musical adaptations" }, { "paragraph_id": 101, "text": "Gaetano Donizetti used this anthem in his opera \"Roberto Devereux\".", "title": "Musical adaptations" }, { "paragraph_id": 102, "text": "Joachim Raff used this anthem in his Jubelouverture, Op. 103 (1864) dedicated to Adolf, Duke of Nassau, on the 25th anniversary of his reign.", "title": "Musical adaptations" }, { "paragraph_id": 103, "text": "Gioachino Rossini used this anthem in the last scene of his Il viaggio a Reims, when all the characters, coming from many different European countries, sing a song which recalls their own homeland. Lord Sidney, bass, sings \"Della real pianta\" on the notes of \"God Save the King\". Samuel Ramey used to interpolate a spectacular virtuoso cadenza at the end of the song.", "title": "Musical adaptations" }, { "paragraph_id": 104, "text": "Fernando Sor used the anthem in his 12 Studies, Op. 6: No. 10 in C major in the section marked 'Maestoso.'", "title": "Musical adaptations" }, { "paragraph_id": 105, "text": "Arthur Sullivan quotes the anthem at the end of his ballet Victoria and Merrie England.", "title": "Musical adaptations" }, { "paragraph_id": 106, "text": "Claude Debussy opens with a brief introduction of \"God Save the King\" in one of his Preludes, Hommage à S. Pickwick Esq. P.P.M.P.C.. The piece draws its inspiration from the main character of the Charles Dickens novel The Pickwick Papers.", "title": "Musical adaptations" }, { "paragraph_id": 107, "text": "Niccolò Paganini wrote a set of highly virtuosic variations on \"God Save the King\" as his Op. 9.", "title": "Musical adaptations" }, { "paragraph_id": 108, "text": "Max Reger wrote Variations and Fugue on 'Heil dir im Siegerkranz' (God Save the King) for organ in 1901 after the death of Queen Victoria. It does not have an opus number.", "title": "Musical adaptations" }, { "paragraph_id": 109, "text": "A week before the Coronation Ode was due to be premiered at the June 1902 \"Coronation Gala Concert\" at Covent Garden (it was cancelled, owing to the King's illness), Sir Edward Elgar introduced an arrangement of \"Land of Hope and Glory\" as a solo song performed by Clara Butt at a \"Coronation Concert\" at the Albert Hall. Novello seized upon the prevailing patriotism and requested that Elgar arrange the National Anthem as an appropriate opening for a concert performed in front of the Court and numerous British and foreign dignitaries. This version for orchestra and chorus, which is enlivened by use of a cappella and marcato effects, was also performed at the opening of the British Empire Exhibition at Wembley on St. George's Day, 1924, and recorded under the composer's baton in 1928, with the London Symphony Orchestra and the Philharmonic Choir. Elgar also used the first verse of the anthem as the climax of a short \"Civic Procession and Anthem\", written to accompany the mayoral procession at the opening of the Hereford Music Festival on 4 September 1927. This premiere performance was recorded, and is today available on CD; the score was lost following the festival, and Elgar reconstructed it by ear from the recording.", "title": "Musical adaptations" }, { "paragraph_id": 110, "text": "Carl Maria von Weber uses the \"God Save the King\" theme at the end of his \"Jubel Overture\".", "title": "Musical adaptations" }, { "paragraph_id": 111, "text": "Giuseppe Verdi included \"God Save the Queen\" in his \"Inno delle nazioni\" (Hymn of the Nations), composed for the London 1862 International Exhibition.", "title": "Musical adaptations" }, { "paragraph_id": 112, "text": "Benjamin Britten arranged \"God Save the Queen\" in 1961 for the Leeds Festival. This version has been programmed several times at the Last Night of the Proms.", "title": "Musical adaptations" }, { "paragraph_id": 113, "text": "Charles Ives wrote Variations on \"America\" for organ in 1891 at age seventeen. It included a polytonal section in three simultaneous keys, though this was omitted from performances at his father's request, because \"it made the boys laugh out loud\". Ives was fond of the rapid pedal line in the final variation, which he said was \"almost as much fun as playing baseball\". The piece was not published until 1949; the final version includes an introduction, seven variations and a polytonal interlude. The piece was adapted for orchestra in 1963 by William Schuman. This version became popular during the bicentennial celebrations, and is often heard at pops concerts.", "title": "Musical adaptations" }, { "paragraph_id": 114, "text": "Muthuswami Dikshitar (1776–1835), one of the musical trinity in South Indian classical (Carnatic) music composed some Sanskrit pieces set to Western tunes. These are in the raga Sankarabharanam and are referred to as \"nottu swaras\". Among these, the composition \"Santatam Pahimam Sangita Shyamale\" is set to the tune of \"God Save the Queen\".", "title": "Musical adaptations" }, { "paragraph_id": 115, "text": "Sigismond Thalberg (1812–1871), Swiss composer and one of the most famous virtuoso pianists of the 19th century, wrote a fantasia on \"God Save the Queen\".", "title": "Musical adaptations" }, { "paragraph_id": 116, "text": "Johan Nepomuk Hummel (1778–1837) wrote Variations on God Save the King in D major, Op. 10 and quoted the tune briefly in his Freudenfest-Ouverture in D major, S 148.", "title": "Musical adaptations" }, { "paragraph_id": 117, "text": "Jan Ladislav Dussek wrote a set of theme with 5 variations for piano on God Save the King.", "title": "Musical adaptations" }, { "paragraph_id": 118, "text": "Adolphe Blanc wrote a set of variations for piano six hands on this theme.", "title": "Musical adaptations" }, { "paragraph_id": 119, "text": "Adrien-François Servais (1807–66) and Joseph Ghys (1801–48) wrote Variations brillantes et concertantes sur l'air \"God Save the King\", Op. 38, for violin and cello and performed it in London and St Petersburg.", "title": "Musical adaptations" }, { "paragraph_id": 120, "text": "Georges Onslow (1784–1853) used the tune in his String Quartet No. 7 in G minor, Op. 9, second movement.", "title": "Musical adaptations" }, { "paragraph_id": 121, "text": "Hans Huber used the melody (\"Rufst du, mein Vaterland\") in the first movement of his Symphony no 3 in C minor, Op. 118 (\"Heroic\").", "title": "Musical adaptations" }, { "paragraph_id": 122, "text": "Ferdinando Carulli used the melody in Fantaisie sur un air national anglais, for recorder & guitar, Op. 102.", "title": "Musical adaptations" }, { "paragraph_id": 123, "text": "Louis Drouet composed \"Variations on the air God save the King\" for flute and piano.", "title": "Musical adaptations" }, { "paragraph_id": 124, "text": "Gordon Jacob wrote a choral arrangement of \"God Save the Queen\" with a trumpet fanfare introduction, for the coronation of Queen Elizabeth II in 1953.", "title": "Musical adaptations" }, { "paragraph_id": 125, "text": "Jimi Hendrix played an impromptu version of \"God Save the Queen\" to open his set at the Isle of Wight Festival 1970. Just before walking onto the stage, he asked \"How does it [the anthem] go again?\". Hendrix gave the same sort of distortion and improvisation of \"God Save the Queen\", as he had done with \"The Star-Spangled Banner\" at the Woodstock Festival, 1969.", "title": "Musical adaptations" }, { "paragraph_id": 126, "text": "The rock band Queen recorded an instrumental version of \"God Save the Queen\" for their 1975 album A Night at the Opera. Guitarist Brian May adapted the melody using his distinctive layers of overdubbed electric guitars. This recorded version was played at the end of every Queen concert from the end of 1974 to 1986, while vocalist Freddie Mercury walked around the stage wearing a crown and a cloak on their Magic Tour in 1986. The song was played whilst all the Queen members would take their bows. On 3 June 2002, during the Queen's Golden Jubilee, Brian May performed the anthem on his Red Special electric guitar for Party at the Palace from the roof of Buckingham Palace which is featured on the 30th Anniversary DVD edition of A Night at the Opera.", "title": "Musical adaptations" }, { "paragraph_id": 127, "text": "In 1977, the Sex Pistols recorded a song titled \"God Save the Queen\" in open reference to the National Anthem and the Queen's Silver Jubilee celebrations that year, with the song intending to stand for sympathy for the working class and resentment of the monarchy. They were banned from many venues, censored by mainstream media, and reached number 2 on the official U.K. singles charts and number 1 on the NME chart.", "title": "Musical adaptations" }, { "paragraph_id": 128, "text": "A version of \"God Save the Queen\" by Madness features the melody of the song played on kazoos. It was included on the compilation album The Business – the Definitive Singles Collection.", "title": "Musical adaptations" }, { "paragraph_id": 129, "text": "The anthem was the first piece of music played on a computer, and the first computer music to be recorded.", "title": "Musical adaptations" }, { "paragraph_id": 130, "text": "Musical notes were first generated by a computer programmed by Alan Turing at the Computing Machine Laboratory of the University of Manchester in 1948. The first music proper, a performance of the National Anthem was programmed by Christopher Strachey on the Mark II Manchester Electronic Computer at same venue, in 1951. Later that year, short extracts of three pieces, the first being the National Anthem, were recorded there by a BBC outside broadcasting unit: the other pieces being \"Baa Baa Black Sheep\", and \"In the Mood\". Researchers at the University of Canterbury, Christchurch restored the acetate master disc in 2016 and the results may be heard on SoundCloud.", "title": "Musical adaptations" }, { "paragraph_id": 131, "text": "The philosopher and reformer Jeremy Bentham praised \"God Save the King\" in 1796: \"the melody recommending itself by beauty to the most polished ears, and by its simplicity to the rudest ear. A song of this complexion, implanted by the habit of half a century in the mass of popular sentiment, can not be refused a place in the inventory of the national blessings.\" Ludwig van Beethoven wrote \"I have to show the English a little of what a blessing 'God Save the King' is\".", "title": "Reception" }, { "paragraph_id": 132, "text": "There have been calls within the UK for a new national anthem, whether it be for the United Kingdom itself, Britain and/or England (which all currently use \"God Save the King\"). There are many reasons people cite for wishing for a new national anthem, such as: from a non-religious standpoint claims of \"God Save the King\" being long outdated and irrelevant in the 21st century, rejection of odes to promoting war and imperialism and rejection of praising the monarchy from a republican perspective. A further reason is that England has no anthem of its own for sporting contests and the like, whereas Scotland, Northern Ireland, and Wales have unofficial anthems; \"Flower of Scotland\", \"Londonderry Air\", and \"Hen Wlad Fy Nhadau\" while England tends to use \"God Save the King\" exclusively and also unofficially.", "title": "Reception" }, { "paragraph_id": 133, "text": "Notes", "title": "Notes and references" }, { "paragraph_id": 134, "text": "References", "title": "Notes and references" } ]
"God Save the King" is the national anthem of the United Kingdom and the royal anthem of each of the British Crown Dependencies, one of two national anthems of New Zealand since 1977, and the royal anthem of most Commonwealth realms. The author of the tune is unknown and it may originate in plainchant, but an attribution to the composer John Bull has sometimes been made. In countries not part of the British Empire, the tune of "God Save the King" has provided the basis for various patriotic songs, though still generally connected with royal ceremony. The melody continues to be used for the national anthem of Liechtenstein, "Oben am jungen Rhein", and the royal anthem of Norway, "Kongesangen". The melody is used for the American patriotic song "My Country, 'Tis of Thee". The melody was also used for the national anthem "Heil dir im Siegerkranz" of the Kingdom of Prussia from 1795 and of the German Empire from 1871 to 1918 and as "The Prayer of Russians", the imperial anthem of Russia from 1816 to 1833. In Switzerland, it is known as "Rufst du, mein Vaterland". Beyond its first verse, which is consistent, "God Save the King" has many historic and extant versions. Since its first publication, different verses have been added and taken away and, even today, different publications include various selections of verses in various orders. In general, only one verse is sung. Sometimes two verses are sung and, on certain occasions, three. The entire composition is the musical salute for the monarch and royal consort, while other members of the royal family who are entitled to royal salute receive just the first six bars. The first six bars also form all or part of the viceregal salute in some Commonwealth realms other than the UK, as well as the salute given to governors of British overseas territories.
2001-10-19T14:20:17Z
2023-12-31T20:08:36Z
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https://en.wikipedia.org/wiki/God_Save_the_King
12,336
Gladiator
A gladiator (Latin: gladiator, "swordsman", from gladius, "sword") was an armed combatant who entertained audiences in the Roman Republic and Roman Empire in violent confrontations with other gladiators, wild animals, and condemned criminals. Some gladiators were volunteers who risked their lives and their legal and social standing by appearing in the arena. Most were despised as slaves, schooled under harsh conditions, socially marginalized, and segregated even in death. Irrespective of their origin, gladiators offered spectators an example of Rome's martial ethics and, in fighting or dying well, they could inspire admiration and popular acclaim. They were celebrated in high and low art, and their value as entertainers was commemorated in precious and commonplace objects throughout the Roman world. The origin of gladiatorial combat is open to debate. There is evidence of it in funeral rites during the Punic Wars of the 3rd century BC, and thereafter it rapidly became an essential feature of politics and social life in the Roman world. Its popularity led to its use in ever more lavish and costly games. The gladiator games lasted for nearly a thousand years, reaching their peak between the 1st century BC and the 2nd century AD. Christians disapproved of the games because they involved idolatrous pagan rituals, and the popularity of gladatorial contests declined in the fifth century, leading to their disappearance. Early literary sources seldom agree on the origins of gladiators and the gladiator games. In the late 1st century BC, Nicolaus of Damascus believed they were Etruscan. A generation later, Livy wrote that they were first held in 310 BC by the Campanians in celebration of their victory over the Samnites. Long after the games had ceased, the 7th century AD writer Isidore of Seville derived Latin lanista (manager of gladiators) from the Etruscan word for "executioner", and the title of "Charon" (an official who accompanied the dead from the Roman gladiatorial arena) from Charun, psychopomp of the Etruscan underworld. This was accepted and repeated in most early modern, standard histories of the games. For some modern scholars, reappraisal of pictorial evidence supports a Campanian origin, or at least a borrowing, for the games and gladiators. Campania hosted the earliest known gladiator schools (ludi). Tomb frescoes from the Campanian city of Paestum (4th century BC) show paired fighters, with helmets, spears and shields, in a propitiatory funeral blood-rite that anticipates early Roman gladiator games. Compared to these images, supporting evidence from Etruscan tomb-paintings is tentative and late. The Paestum frescoes may represent the continuation of a much older tradition, acquired or inherited from Greek colonists of the 8th century BC. Livy places the first Roman gladiator games (264 BC) in the early stage of Rome's First Punic War, against Carthage, when Decimus Junius Brutus Scaeva had three gladiator pairs fight to the death in Rome's "cattle market" forum (Forum Boarium) to honor his dead father, Brutus Pera. Livy describes this as a "munus" (plural: munera), a gift, in this case a commemorative duty owed the manes (spirit, or shade) of a dead ancestor by his descendants. The development of the gladiator munus and its gladiator types was most strongly influenced by Samnium's support for Hannibal and the subsequent punitive expeditions against the Samnites by Rome and its Campanian allies; the earliest, most frequently mentioned and probably most popular type was the Samnite. The war in Samnium, immediately afterwards, was attended with equal danger and an equally glorious conclusion. The enemy, besides their other warlike preparation, had made their battle-line to glitter with new and splendid arms. There were two corps: the shields of the one were inlaid with gold, of the other with silver ... The Romans had already heard of these splendid accoutrements, but their generals had taught them that a soldier should be rough to look on, not adorned with gold and silver but putting his trust in iron and in courage ... The Dictator, as decreed by the senate, celebrated a triumph, in which by far the finest show was afforded by the captured armour. So the Romans made use of the splendid armour of their enemies to do honour to their gods; while the Campanians, in consequence of their pride and in hatred of the Samnites, equipped after this fashion the gladiators who furnished them entertainment at their feasts, and bestowed on them the name Samnites. Livy's account skirts the funereal, sacrificial function of early Roman gladiator combats and reflects the later theatrical ethos of the Roman gladiator show: splendidly, exotically armed and armoured barbarians, treacherous and degenerate, are dominated by Roman iron and native courage. His plain Romans virtuously dedicate the magnificent spoils of war to the gods. Their Campanian allies stage a dinner entertainment using gladiators who may not be Samnites, but play the Samnite role. Other groups and tribes would join the cast list as Roman territories expanded. Most gladiators were armed and armoured in the manner of the enemies of Rome. The gladiator munus became a morally instructive form of historic enactment in which the only honourable option for the gladiator was to fight well, or else die well. In 216 BC, Marcus Aemilius Lepidus, late consul and augur, was honoured by his sons with three days of gladiatora munera in the Forum Romanum, using twenty-two pairs of gladiators. Ten years later, Scipio Africanus gave a commemorative munus in Iberia for his father and uncle, casualties in the Punic Wars. High status non-Romans, and possibly Romans too, volunteered as his gladiators. The context of the Punic Wars and Rome's near-disastrous defeat at the Battle of Cannae (216 BC) link these early games to munificence, the celebration of military victory and the religious expiation of military disaster; these munera appear to serve a morale-raising agenda in an era of military threat and expansion. The next recorded munus, held for the funeral of Publius Licinius in 183 BC, was more extravagant. It involved three days of funeral games, 120 gladiators, and public distribution of meat (visceratio data)—a practice that reflected the gladiatorial fights at Campanian banquets described by Livy and later deplored by Silius Italicus. The enthusiastic adoption of gladiatoria munera by Rome's Iberian allies shows how easily, and how early, the culture of the gladiator munus permeated places far from Rome itself. By 174 BC, "small" Roman munera (private or public), provided by an editor of relatively low importance, may have been so commonplace and unremarkable they were not considered worth recording: Many gladiatorial games were given in that year, some unimportant, one noteworthy beyond the rest—that of Titus Flamininus which he gave to commemorate the death of his father, which lasted four days, and was accompanied by a public distribution of meats, a banquet, and scenic performances. The climax of the show which was big for the time was that in three days seventy four gladiators fought. In 105 BC, the ruling consuls offered Rome its first taste of state-sponsored "barbarian combat" demonstrated by gladiators from Capua, as part of a training program for the military. It proved immensely popular. Thereafter, the gladiator contests formerly restricted to private munera were often included in the state games (ludi) that accompanied the major religious festivals. Where traditional ludi had been dedicated to a deity, such as Jupiter, the munera could be dedicated to an aristocratic sponsor's divine or heroic ancestor. Gladiatorial games offered their sponsors extravagantly expensive but effective opportunities for self-promotion, and gave their clients and potential voters exciting entertainment at little or no cost to themselves. Gladiators became big business for trainers and owners, for politicians on the make and those who had reached the top and wished to stay there. A politically ambitious privatus (private citizen) might postpone his deceased father's munus to the election season, when a generous show might drum up votes; those in power and those seeking it needed the support of the plebeians and their tribunes, whose votes might be won with the mere promise of an exceptionally good show. Sulla, during his term as praetor, showed his usual acumen in breaking his own sumptuary laws to give the most lavish munus yet seen in Rome, for the funeral of his wife, Metella. In the closing years of the politically and socially unstable Late Republic, any aristocratic owner of gladiators had political muscle at his disposal. In 65 BC, newly elected curule aedile Julius Caesar held games that he justified as munus to his father, who had been dead for 20 years. Despite an already enormous personal debt, he used 320 gladiator pairs in silvered armour. He had more available in Capua but the senate, mindful of the recent Spartacus revolt and fearful of Caesar's burgeoning private armies and rising popularity, imposed a limit of 320 pairs as the maximum number of gladiators any citizen could keep in Rome. Caesar's showmanship was unprecedented in scale and expense; he had staged a munus as memorial rather than funeral rite, eroding any practical or meaningful distinction between munus and ludi. Gladiatorial games, usually linked with beast shows, spread throughout the republic and beyond. Anti-corruption laws of 65 and 63 BC attempted but failed to curb the political usefulness of the games to their sponsors. Following Caesar's assassination and the Roman Civil War, Augustus assumed imperial authority over the games, including munera, and formalised their provision as a civic and religious duty. His revision of sumptuary law capped private and public expenditure on munera, claiming to save the Roman elite from the bankruptcies they would otherwise suffer, and restricting gladiator munera to the festivals of Saturnalia and Quinquatria. Henceforth, an imperial praetor's official munus was allowed a maximum of 120 gladiators at a ceiling cost of 25,000 denarii; an imperial ludi might cost no less than 180,000 denarii. Throughout the empire, the greatest and most celebrated games would now be identified with the state-sponsored imperial cult, which furthered public recognition, respect and approval for the emperor's divine numen, his laws, and his agents. Between 108 and 109 AD, Trajan celebrated his Dacian victories using a reported 10,000 gladiators and 11,000 animals over 123 days. The cost of gladiators and munera continued to spiral out of control. Legislation of 177 AD by Marcus Aurelius did little to stop it, and was completely ignored by his son, Commodus. The decline of the gladiatorial munus was a far from straightforward process. The crisis of the 3rd century imposed increasing military demands on the imperial purse, from which the Roman Empire never quite recovered, and lesser magistrates found their provision of various obligatory munera an increasingly unrewarding tax on the doubtful privileges of office. Still, emperors continued to subsidize the games as a matter of undiminished public interest. In the early 3rd century AD, the Christian writer Tertullian condemned the attendance of Christians: the combats, he said, were murder, their witnessing spiritually and morally harmful and the gladiator an instrument of pagan human sacrifice. Carolyn Osiek comments: The reason, we would suppose, would be primarily the bloodthirsty violence, but his is different: the extent of religious ritual and meaning in them, which constitutes idolatry. Although Tertullian states that these events are forbidden to believers, the fact that he writes a whole treatise to convince Christians that they should not attend (De Spectaculis) shows that apparently not everyone agreed to stay away from them. In the next century, Augustine of Hippo deplored the youthful fascination of his friend (and later fellow-convert and bishop) Alypius of Thagaste, with the munera spectacle as inimical to a Christian life and salvation. Amphitheatres continued to host the spectacular administration of Imperial justice: in 315 Constantine the Great condemned child-snatchers ad bestias in the arena. Ten years later, he forbade criminals being forced to fight to the death as gladiators: Bloody spectacles do not please us in civil ease and domestic quiet. For that reason we forbid those people to be gladiators who by reason of some criminal act were accustomed to deserve this condition and sentence. You shall rather sentence them to serve in the mines so that they may acknowledge the penalties of their crimes with blood. This has been interpreted as a ban on gladiatorial combat. Yet, in the last year of his life, Constantine wrote a letter to the citizens of Hispellum, granting its people the right to celebrate his rule with gladiatorial games. In 365, Valentinian I (r. 364–375) threatened to fine a judge who sentenced Christians to the arena and in 384 attempted, like most of his predecessors, to limit the expenses of gladiatora munera. In 393, Theodosius I (r. 379–395) adopted Nicene Christianity as the state religion of the Roman Empire and banned pagan festivals. The ludi continued, very gradually shorn of their stubbornly pagan elements. Honorius (r. 395–423) legally ended gladiator games in 399, and again in 404, at least in the Western Roman Empire. According to Theodoret, the ban was in consequence of Saint Telemachus' martyrdom by spectators at a gladiator munus. Valentinian III (r. 425–455) repeated the ban in 438, perhaps effectively, though venationes continued beyond 536. By this time, interest in gladiator contests had waned throughout the Roman world. In the Byzantine Empire, theatrical shows and chariot races continued to attract the crowds, and drew a generous imperial subsidy. The earliest munera took place at or near the tomb of the deceased and these were organised by their munerator (who made the offering). Later games were held by an editor, either identical with the munerator or an official employed by him. As time passed, these titles and meanings may have merged. In the republican era, private citizens could own and train gladiators, or lease them from a lanista (owner of a gladiator training school). From the principate onwards, private citizens could hold munera and own gladiators only with imperial permission, and the role of editor was increasingly tied to state officialdom. Legislation by Claudius required that quaestors, the lowest rank of Roman magistrate, personally subsidise two-thirds of the costs of games for their small-town communities—in effect, both an advertisement of their personal generosity and a part-purchase of their office. Bigger games were put on by senior magistrates, who could better afford them. The largest and most lavish of all were paid for by the emperor himself. The earliest types of gladiator were named after Rome's enemies of that time: the Samnite, Thracian and Gaul. The Samnite, heavily armed, elegantly helmed and probably the most popular type, was renamed secutor and the Gaul renamed murmillo, once these former enemies had been conquered then absorbed into Rome's Empire. In the mid-republican munus, each type seems to have fought against a similar or identical type. In the later Republic and early Empire, various "fantasy" types were introduced, and were set against dissimilar but complementary types. For example, the bareheaded, nimble retiarius ("net-man"), armoured only at the left arm and shoulder, pitted his net, trident and dagger against the more heavily armoured, helmeted Secutor. Most depictions of gladiators show the most common and popular types. Passing literary references to others has allowed their tentative reconstruction. Other novelties introduced around this time included gladiators who fought from chariots or carts, or from horseback. At an unknown date, cestus fighters were introduced to Roman arenas, probably from Greece, armed with potentially lethal boxing gloves. The trade in gladiators was empire-wide, and subjected to official supervision. Rome's military success produced a supply of soldier-prisoners who were redistributed for use in State mines or amphitheatres and for sale on the open market. For example, in the aftermath of the Jewish Revolt, the gladiator schools received an influx of Jews—those rejected for training would have been sent straight to the arenas as noxii (lit. "hurtful ones"). The best—the most robust—were sent to Rome. In Rome's military ethos, enemy soldiers who had surrendered or allowed their own capture and enslavement had been granted an unmerited gift of life. Their training as gladiators would give them opportunity to redeem their honour in the munus. Two other sources of gladiators, found increasingly during the Principate and the relatively low military activity of the Pax Romana, were slaves condemned to the arena (damnati), to gladiator schools or games (ad ludum gladiatorium) as punishment for crimes, and the paid volunteers (auctorati) who by the late Republic may have comprised approximately half—and possibly the most capable half—of all gladiators. The use of volunteers had a precedent in the Iberian munus of Scipio Africanus; but none of those had been paid. For the poor, and for non-citizens, enrollment in a gladiator school offered a trade, regular food, housing of sorts and a fighting chance of fame and fortune. Mark Antony chose a troupe of gladiators to be his personal bodyguard. Gladiators customarily kept their prize money and any gifts they received, and these could be substantial. Tiberius offered several retired gladiators 100,000 sesterces each to return to the arena. Nero gave the gladiator Spiculus property and residence "equal to those of men who had celebrated triumphs." From the 60s AD female gladiators appear as rare and "exotic markers of exceptionally lavish spectacle". In 66 AD, Nero had Ethiopian women, men and children fight at a munus to impress the King Tiridates I of Armenia. Romans seem to have found the idea of a female gladiator novel and entertaining, or downright absurd; Juvenal titillates his readers with a woman named "Mevia", hunting boars in the arena "with spear in hand and breasts exposed", and Petronius mocks the pretensions of a rich, low-class citizen, whose munus includes a woman fighting from a cart or chariot. A munus of 89 AD, during Domitian's reign, featured a battle between female gladiators, described as "Amazons". In Halicarnassus, a 2nd-century AD relief depicts two female combatants named "Amazon" and "Achillia"; their match ended in a draw. In the same century, an epigraph praises one of Ostia's local elite as the first to "arm women" in the history of its games. Female gladiators probably submitted to the same regulations and training as their male counterparts. Roman morality required that all gladiators be of the lowest social classes, and emperors who failed to respect this distinction earned the scorn of posterity. Cassius Dio takes pains to point out that when the much admired emperor Titus used female gladiators, they were of acceptably low class. Some regarded female gladiators of any type or class as a symptom of corrupted Roman appetites, morals and womanhood. Before he became emperor, Septimius Severus may have attended the Antiochene Olympic Games, which had been revived by the emperor Commodus and included traditional Greek female athletics. Septimius' attempt to give Rome a similarly dignified display of female athletics was met by the crowd with ribald chants and cat-calls. Probably as a result, he banned the use of female gladiators in 200 AD. Caligula, Titus, Hadrian, Lucius Verus, Caracalla, Geta and Didius Julianus were all said to have performed in the arena, either in public or private, but risks to themselves were minimal. Claudius, characterised by his historians as morbidly cruel and boorish, fought a whale trapped in the harbor in front of a group of spectators. Commentators invariably disapproved of such performances. Commodus was a fanatical participant at the ludi, and compelled Rome's elite to attend his performances as gladiator, bestiarius or venator. Most of his performances as a gladiator were bloodless affairs, fought with wooden swords; he invariably won. He was said to have restyled Nero's colossal statue in his own image as "Hercules Reborn", dedicated to himself as "Champion of secutores; only left-handed fighter to conquer twelve times one thousand men." He was said to have killed 100 lions in one day, almost certainly from an elevated platform surrounding the arena perimeter, which allowed him to safely demonstrate his marksmanship. On another occasion, he decapitated a running ostrich with a specially designed dart, carried the bloodied head and his sword over to the Senatorial seats and gesticulated as though they were next. As reward for these services, he drew a gigantic stipend from the public purse. Gladiator games were advertised well beforehand, on billboards that gave the reason for the game, its editor, venue, date and the number of paired gladiators (ordinarii) to be used. Other highlighted features could include details of venationes, executions, music and any luxuries to be provided for the spectators, such as an awning against the sun, water sprinklers, food, drink, sweets and occasionally "door prizes". For enthusiasts and gamblers, a more detailed program (libellus) was distributed on the day of the munus, showing the names, types and match records of gladiator pairs, and their order of appearance. Left-handed gladiators were advertised as a rarity; they were trained to fight right-handers, which gave them an advantage over most opponents and produced an interestingly unorthodox combination. The night before the munus, the gladiators were given a banquet and opportunity to order their personal and private affairs; Futrell notes its similarity to a ritualistic or sacramental "last meal". These were probably both family and public events which included even the noxii, sentenced to die in the arena the following day; and the damnati, who would have at least a slender chance of survival. The event may also have been used to drum up more publicity for the imminent game. Official munera of the early Imperial era seem to have followed a standard form (munus legitimum). A procession (pompa) entered the arena, led by lictors who bore the fasces that signified the magistrate-editor's power over life and death. They were followed by a small band of trumpeters (tubicines) playing a fanfare. Images of the gods were carried in to "witness" the proceedings, followed by a scribe to record the outcome, and a man carrying the palm branch used to honour victors. The magistrate editor entered among a retinue who carried the arms and armour to be used; the gladiators presumably came in last. The entertainments often began with venationes (beast hunts) and bestiarii (beast fighters). Next came the ludi meridiani, which were of variable content but usually involved executions of noxii, some of whom were condemned to be subjects of fatal re-enactments, based on Greek or Roman myths. Gladiators may have been involved in these as executioners, though most of the crowd, and the gladiators themselves, preferred the "dignity" of an even contest. There were also comedy fights; some may have been lethal. A crude Pompeian graffito suggests a burlesque of musicians, dressed as animals named Ursus tibicen (flute-playing bear) and Pullus cornicen (horn-blowing chicken), perhaps as accompaniment to clowning by paegniarii during a "mock" contest of the ludi meridiani. The gladiators may have held informal warm-up matches, using blunted or dummy weapons—some munera, however, may have used blunted weapons throughout. The editor, his representative or an honoured guest would check the weapons (probatio armorum) for the scheduled matches. These were the highlight of the day, and were as inventive, varied and novel as the editor could afford. Armatures could be very costly—some were flamboyantly decorated with exotic feathers, jewels and precious metals. Increasingly the munus was the editor's gift to spectators who had come to expect the best as their due. Lightly armed and armoured fighters, such as the retiarius, would tire less rapidly than their heavily armed opponents; most bouts would have lasted 10 to 15 minutes, or 20 minutes at most. In late Republican munera, between 10 and 13 matches could have been fought on one day; this assumes one match at a time in the course of an afternoon. Spectators preferred to watch highly skilled, well matched ordinarii with complementary fighting styles; these were the most costly to train and to hire. A general melee of several, lower-skilled gladiators was far less costly, but also less popular. Even among the ordinarii, match winners might have to fight a new, well-rested opponent, either a tertiarius ("third choice gladiator") by prearrangement; or a "substitute" gladiator (suppositicius) who fought at the whim of the editor as an unadvertised, unexpected "extra". This yielded two combats for the cost of three gladiators, rather than four; such contests were prolonged, and in some cases, more bloody. Most were probably of poor quality, but the emperor Caracalla chose to test a notably skilled and successful fighter named Bato against first one supposicitius, whom he beat, and then another, who killed him. At the opposite level of the profession, a gladiator reluctant to confront his opponent might be whipped, or goaded with hot irons, until he engaged through sheer desperation. Combats between experienced, well trained gladiators demonstrated a considerable degree of stagecraft. Among the cognoscenti, bravado and skill in combat were esteemed over mere hacking and bloodshed; some gladiators made their careers and reputation from bloodless victories. Suetonius describes an exceptional munus by Nero, in which no-one was killed, "not even noxii (enemies of the state)." Trained gladiators were expected to observe professional rules of combat. Most matches employed a senior referee (summa rudis) and an assistant, shown in mosaics with long staffs (rudes) to caution or separate opponents at some crucial point in the match. Referees were usually retired gladiators whose decisions, judgement and discretion were, for the most part, respected; they could stop bouts entirely, or pause them to allow the combatants rest, refreshment and a rub-down. Ludi and munera were accompanied by music, played as interludes, or building to a "frenzied crescendo" during combats, perhaps to heighten the suspense during a gladiator's appeal; blows may have been accompanied by trumpet-blasts. The Zliten mosaic in Libya (circa 80–100 AD) shows musicians playing an accompaniment to provincial games (with gladiators, bestiarii, or venatores and prisoners attacked by beasts). Their instruments are a long straight trumpet (tubicen), a large curved horn (Cornu) and a water organ (hydraulis). Similar representations (musicians, gladiators and bestiari) are found on a tomb relief in Pompeii. A match was won by the gladiator who overcame his opponent, or killed him outright. Victors received the palm branch and an award from the editor. An outstanding fighter might receive a laurel crown and money from an appreciative crowd but for anyone originally condemned ad ludum the greatest reward was manumission (emancipation), symbolised by the gift of a wooden training sword or staff (rudis) from the editor. Martial describes a match between Priscus and Verus, who fought so evenly and bravely for so long that when both acknowledged defeat at the same instant, Titus awarded victory and a rudis to each. Flamma was awarded the rudis four times, but chose to remain a gladiator. His gravestone in Sicily includes his record: "Flamma, secutor, lived 30 years, fought 34 times, won 21 times, fought to a draw 9 times, defeated 4 times, a Syrian by nationality. Delicatus made this for his deserving comrade-in-arms." A gladiator could acknowledge defeat by raising a finger (ad digitum), in appeal to the referee to stop the combat and refer to the editor, whose decision would usually rest on the crowd's response. In the earliest munera, death was considered a righteous penalty for defeat; later, those who fought well might be granted remission at the whim of the crowd or the editor. During the Imperial era, matches advertised as sine missione (usually understood to mean "without reprieve" for the defeated) suggest that missio (the sparing of a defeated gladiator's life) had become common practice. The contract between editor and his lanista could include compensation for unexpected deaths; this could be "some fifty times higher than the lease price" of the gladiator. Under Augustus' rule, the demand for gladiators began to exceed supply, and matches sine missione were officially banned; an economical, pragmatic development that happened to match popular notions of "natural justice". When Caligula and Claudius refused to spare defeated but popular fighters, their own popularity suffered. In general, gladiators who fought well were likely to survive. At a Pompeian match between chariot-fighters, Publius Ostorius, with previous 51 wins to his credit, was granted missio after losing to Scylax, with 26 victories. By common custom, the spectators decided whether or not a losing gladiator should be spared, and chose the winner in the rare event of a standing tie. Even more rarely, perhaps uniquely, one stalemate ended in the killing of one gladiator by the editor himself. In any event, the final decision of death or life belonged to the editor, who signalled his choice with a gesture described by Roman sources as pollice verso meaning "with a turned thumb"; a description too imprecise for reconstruction of the gesture or its symbolism. Whether victorious or defeated, a gladiator was bound by oath to accept or implement his editor's decision, "the victor being nothing but the instrument of his [editor's] will." Not all editors chose to go with the crowd, and not all those condemned to death for putting on a poor show chose to submit: Once a band of five retiarii in tunics, matched against the same number of secutores, yielded without a struggle; but when their death was ordered, one of them caught up his trident and slew all the victors. Caligula bewailed this in a public proclamation as a most cruel murder. A gladiator who was refused missio was despatched by his opponent. To die well, a gladiator should never ask for mercy, nor cry out. A "good death" redeemed the gladiator from the dishonourable weakness and passivity of defeat, and provided a noble example to those who watched: For death, when it stands near us, gives even to inexperienced men the courage not to seek to avoid the inevitable. So the gladiator, no matter how faint-hearted he has been throughout the fight, offers his throat to his opponent and directs the wavering blade to the vital spot. (Seneca. Epistles, 30.8) Some mosaics show defeated gladiators kneeling in preparation for the moment of death. Seneca's "vital spot" seems to have meant the neck. Gladiator remains from Ephesus confirm this. The body of a gladiator who had died well was placed on a couch of Libitina and removed with dignity to the arena morgue, where the corpse was stripped of armour, and probably had its throat cut as confirmation of death. The Christian author Tertullian, commenting on ludi meridiani in Roman Carthage during the peak era of the games, describes a more humiliating method of removal. One arena official, dressed as the "brother of Jove", Dis Pater (god of the underworld) strikes the corpse with a mallet. Another, dressed as Mercury, tests for life-signs with a heated "wand"; once confirmed as dead, the body is dragged from the arena. Whether these victims were gladiators or noxii is unknown. Modern pathological examination confirms the probably fatal use of a mallet on some, but not all the gladiator skulls found in a gladiators' cemetery. Kyle (1998) proposes that gladiators who disgraced themselves might have been subjected to the same indignities as noxii, denied the relative mercies of a quick death and dragged from the arena as carrion. Whether the corpse of such a gladiator could be redeemed from further ignominy by friends or familia is not known. The bodies of noxii, and possibly some damnati, were thrown into rivers or dumped unburied; Denial of funeral rites and memorial condemned the shade (manes) of the deceased to restless wandering upon the earth as a dreadful larva or lemur. Ordinary citizens, slaves and freedmen were usually buried beyond the town or city limits, to avoid the ritual and physical pollution of the living; professional gladiators had their own, separate cemeteries. The taint of infamia was perpetual. Gladiators could subscribe to a union (collegia), which ensured their proper burial, and sometimes a pension or compensation for wives and children. Otherwise, the gladiator's familia, which included his lanista, comrades and blood-kin, might fund his funeral and memorial costs, and use the memorial to assert their moral reputation as responsible, respectful colleagues or family members. Some monuments record the gladiator's career in some detail, including the number of appearances, victories—sometimes represented by an engraved crown or wreath—defeats, career duration, and age at death. Some include the gladiator's type, in words or direct representation: for example, the memorial of a retiarius at Verona included the engraving of a trident and sword. A wealthy editor might commission artwork to celebrate a particularly successful or memorable show, and include named portraits of winners and losers in action; the Borghese Gladiator Mosaic is a notable example. According to Cassius Dio, the emperor Caracalla gave the gladiator Bato a magnificent memorial and State funeral; more typical are the simple gladiator tombs of the Eastern Roman Empire, whose brief inscriptions include the following: "The familia set this up in memory of Saturnilos." "For Nikepharos, son of Synetos, Lakedaimonian, and for Narcissus the secutor. Titus Flavius Satyrus set up this monument in his memory from his own money." "For Hermes. Paitraeites with his cell-mates set this up in memory". Very little evidence survives of the religious beliefs of gladiators as a class, or their expectations of an afterlife. Modern scholarship offers little support for the once-prevalent notion that gladiators, venatores and bestiarii were personally or professionally dedicated to the cult of the Graeco-Roman goddess Nemesis. Rather, she seems to have represented a kind of "Imperial Fortuna" who dispensed Imperial retribution on the one hand, and Imperially subsidised gifts on the other—including the munera. One gladiator's tomb dedication clearly states that her decisions are not to be trusted. Many gladiator epitaphs claim Nemesis, fate, deception or treachery as the instrument of their death, never the superior skills of the flesh-and-blood adversary who defeated and killed them. Having no personal responsibility for his own defeat and death, the losing gladiator remains the better man, worth avenging. "I, Victor, left-handed, lie here, but my homeland was in Thessalonica. Doom killed me, not the liar Pinnas. No longer let him boast. I had a fellow gladiator, Polyneikes, who killed Pinnas and avenged me. Claudius Thallus set up this memorial from what I left behind as a legacy." A gladiator might expect to fight in two or three munera annually, and an unknown number would have died in their first match. Few gladiators survived more than 10 contests, though one survived an extraordinary 150 bouts; and another died at 90 years of age, presumably long after retirement. A natural death following retirement is also likely for three individuals who died at 38, 45, and 48 years respectively. George Ville, using evidence from 1st century gladiator headstones, calculated an average age at death of 27, and mortality "among all who entered the arena" at 19/100. Marcus Junkelmann disputes Ville's calculation for average age at death; the majority would have received no headstone, and would have died early in their careers, at 18–25 years of age. Between the early and later Imperial periods the risk of death for defeated gladiators rose from 1/5 to 1/4, perhaps because missio was granted less often. Hopkins and Beard tentatively estimate a total of 400 arenas throughout the Roman Empire at its greatest extent, with a combined total of 8,000 deaths per annum from executions, combats and accidents. The earliest named gladiator school (singular: ludus; plural: ludi) is that of Aurelius Scaurus at Capua. He was lanista of the gladiators employed by the state circa 105 BC to instruct the legions and simultaneously entertain the public. Few other lanistae are known by name: they headed their familia gladiatoria, and had lawful power over life and death of every family member, including servi poenae, auctorati and ancillaries. Socially, they were infames, on a footing with pimps and butchers and despised as price gougers. No such stigma was attached to a gladiator owner (munerarius or editor) of good family, high status and independent means; Cicero congratulated his friend Atticus on buying a splendid troop—if he rented them out, he might recover their entire cost after two performances. The Spartacus revolt had originated in a gladiator school privately owned by Lentulus Batiatus, and had been suppressed only after a protracted series of costly, sometimes disastrous campaigns by regular Roman troops. In the late Republican era, a fear of similar uprisings, the usefulness of gladiator schools in creating private armies, and the exploitation of munera for political gain led to increased restrictions on gladiator school ownership, siting and organisation. By Domitian's time, many had been more or less absorbed by the State, including those at Pergamum, Alexandria, Praeneste and Capua. The city of Rome itself had four; the Ludus Magnus (the largest and most important, housing up to about 2,000 gladiators), Ludus Dacicus, Ludus Gallicus, and the Ludus Matutinus, which trained bestiarii. In the Imperial era, volunteers required a magistrate's permission to join a school as auctorati. If this was granted, the school's physician assessed their suitability. Their contract (auctoramentum) stipulated how often they were to perform, their fighting style and earnings. A condemned bankrupt or debtor accepted as novice (novicius) could negotiate with his lanista or editor for the partial or complete payment of his debt. Faced with runaway re-enlistment fees for skilled auctorati, Marcus Aurelius set their upper limit at 12,000 sesterces. All prospective gladiators, whether volunteer or condemned, were bound to service by a sacred oath (sacramentum). Novices (novicii) trained under teachers of particular fighting styles, probably retired gladiators. They could ascend through a hierarchy of grades (singular: palus) in which primus palus was the highest. Lethal weapons were prohibited in the schools—weighted, blunt wooden versions were probably used. Fighting styles were probably learned through constant rehearsal as choreographed "numbers". An elegant, economical style was preferred. Training included preparation for a stoical, unflinching death. Successful training required intense commitment. Those condemned ad ludum were probably branded or marked with a tattoo (stigma, plural stigmata) on the face, legs and/or hands. These stigmata may have been text—slaves were sometimes thus marked on the forehead until Constantine banned the use of facial stigmata in 325 AD. Soldiers were routinely marked on the hand. Gladiators were typically accommodated in cells, arranged in barrack formation around a central practice arena. Juvenal describes the segregation of gladiators according to type and status, suggestive of rigid hierarchies within the schools: "even the lowest scum of the arena observe this rule; even in prison they're separate". Retiarii were kept away from damnati, and "fag targeteers" from "armoured heavies". As most ordinarii at games were from the same school, this kept potential opponents separate and safe from each other until the lawful munus. Discipline could be extreme, even lethal. Remains of a Pompeian ludus site attest to developments in supply, demand and discipline; in its earliest phase, the building could accommodate 15–20 gladiators. Its replacement could have housed about 100 and included a very small cell, probably for lesser punishments and so low that standing was impossible. Despite the harsh discipline, gladiators represented a substantial investment for their lanista and were otherwise well fed and cared for. Their daily, high-energy, vegetarian diet consisted of barley, boiled beans, oatmeal, ash and dried fruit. Gladiators were sometimes called hordearii (eaters of barley). Romans considered barley inferior to wheat—a punishment for legionaries replaced their wheat ration with it—but it was thought to strengthen the body. Regular massage and high quality medical care helped mitigate an otherwise very severe training regimen. Part of Galen's medical training was at a gladiator school in Pergamum where he saw (and would later criticise) the training, diet, and long-term health prospects of the gladiators. "He vows to endure to be burned, to be bound, to be beaten, and to be killed by the sword." The gladiator's oath as cited by Petronius (Satyricon, 117). Modern customs and institutions offer few useful parallels to the legal and social context of the gladiatoria munera. In Roman law, anyone condemned to the arena or the gladiator schools (damnati ad ludum) was a servus poenae (slave of the penalty), and was considered to be under sentence of death unless manumitted. A rescript of Hadrian reminded magistrates that "those sentenced to the sword" (execution) should be despatched immediately "or at least within the year", and those sentenced to the ludi should not be discharged before five years, or three years if granted manumission. Only slaves found guilty of specific offences could be sentenced to the arena; however, citizens found guilty of particular offenses could be stripped of citizenship, formally enslaved, then sentenced; and slaves, once freed, could be legally reverted to slavery for certain offences. Arena punishment could be given for banditry, theft and arson, and for treasons such as rebellion, census evasion to avoid paying due taxes and refusal to swear lawful oaths. Offenders seen as particularly obnoxious to the state (noxii) received the most humiliating punishments. By the 1st century BC, noxii were being condemned to the beasts (damnati ad bestias) in the arena, with almost no chance of survival, or were made to kill each other. From the early Imperial era, some were forced to participate in humiliating and novel forms of mythological or historical enactment, culminating in their execution. Those judged less harshly might be condemned ad ludum venatorium or ad gladiatorium—combat with animals or gladiators—and armed as thought appropriate. These damnati at least might put on a good show and retrieve some respect and, very rarely, survive to fight another day. Some may even have become "proper" gladiators. Among the most admired and skilled auctorati were those who, having been granted manumission, volunteered to fight in the arena. Some of these highly trained and experienced specialists may have had no other practical choice open to them. Their legal status—slave or free—is uncertain. Under Roman law, a freed gladiator could not "offer such services [as those of a gladiator] after manumission, because they cannot be performed without endangering [his] life." All contracted volunteers, including those of equestrian and senatorial class, were legally enslaved by their auctoratio because it involved their potentially lethal submission to a master. All arenarii (those who appeared in the arena) were "infames by reputation", a form of social dishonour which excluded them from most of the advantages and rights of citizenship. Payment for such appearances compounded their infamia. The legal and social status of even the most popular and wealthy auctorati was thus marginal at best. They could not vote, plead in court nor leave a will; and unless they were manumitted, their lives and property belonged to their masters. Nevertheless, there is evidence of informal if not entirely lawful practices to the contrary. Some "unfree" gladiators bequeathed money and personal property to wives and children, possibly via a sympathetic owner or familia; some had their own slaves and gave them their freedom. One gladiator was even granted "citizenship" to several Greek cities of the Eastern Roman world. Caesar's munus of 46 BC included at least one equestrian, son of a Praetor, and two volunteers of possible senatorial rank. Augustus, who enjoyed watching the games, forbade the participation of senators, equestrians and their descendants as fighters or arenarii, but in 11 AD he bent his own rules and allowed equestrians to volunteer because "the prohibition was no use". Under Tiberius, the Larinum decree (19 AD) reiterated Augustus' original prohibitions. Thereafter, Caligula flouted them and Claudius strengthened them. Nero and Commodus ignored them. Even after the adoption of Christianity as Rome's official religion, legislation forbade the involvement of Rome's upper social classes in the games, though not the games themselves. Throughout Rome's history, some volunteers were prepared to risk loss of status or reputation by appearing in the arena, whether for payment, glory or, as in one recorded case, to revenge an affront to their personal honour. In one extraordinary episode, an aristocratic descendant of the Gracchi, already infamous for his marriage, as a bride, to a male horn player, appeared in what may have been a non-lethal or farcical match. His motives are unknown, but his voluntary and "shameless" arena appearance combined the "womanly attire" of a lowly retiarius tunicatus, adorned with golden ribbons, with the apex headdress that marked him out as a priest of Mars. In Juvenal's account, he seems to have relished the scandalous self-display, applause and the disgrace he inflicted on his more sturdy opponent by repeatedly skipping away from the confrontation. As munera grew larger and more popular, open spaces such as the Forum Romanum were adapted (as the Forum Boarium had been) as venues in Rome and elsewhere, with temporary, elevated seating for the patron and high status spectators; they were popular but not truly public events: A show of gladiators was to be exhibited before the people in the market-place, and most of the magistrates erected scaffolds round about, with an intention of letting them for advantage. Caius commanded them to take down their scaffolds, that the poor people might see the sport without paying anything. But nobody obeying these orders of his, he gathered together a body of labourers, who worked for him, and overthrew all the scaffolds the very night before the contest was to take place. So that by the next morning the market-place was cleared, and the common people had an opportunity of seeing the pastime. In this, the populace thought he had acted the part of a man; but he much disobliged the tribunes his colleagues, who regarded it as a piece of violent and presumptuous interference. Towards the end of the Republic, Cicero (Murena, 72–73) still describes gladiator shows as ticketed—their political usefulness was served by inviting the rural tribunes of the plebs, not the people of Rome en masse–but in Imperial times, poor citizens in receipt of the corn dole were allocated at least some free seating, possibly by lottery. Others had to pay. Ticket scalpers (Locarii) sometimes sold or let out seats at inflated prices. Martial wrote that "Hermes [a gladiator who always drew the crowds] means riches for the ticket scalpers". The earliest known Roman amphitheatre was built at Pompeii by Sullan colonists, around 70 BC. The first in the city of Rome was the extraordinary wooden amphitheatre of Gaius Scribonius Curio (built in 53 BC). The first part-stone amphitheatre in Rome was inaugurated in 29–30 BC, in time for the triple triumph of Octavian (later Augustus). Shortly after it burned down in 64 AD, Vespasian began its replacement, later known as the Amphitheatrum Flavium (Colosseum), which seated 50,000 spectators and would remain the largest in the Empire. It was inaugurated by Titus in 80 AD as the personal gift of the Emperor to the people of Rome, paid for by the imperial share of booty after the Jewish Revolt. Amphitheatres were usually oval in plan. Their seating tiers surrounded the arena below, where the community's judgments were meted out, in full public view. From across the stands, crowd and editor could assess each other's character and temperament. For the crowd, amphitheatres afforded unique opportunities for free expression and free speech (theatralis licentia). Petitions could be submitted to the editor (as magistrate) in full view of the community. Factiones and claques could vent their spleen on each other, and occasionally on Emperors. The emperor Titus's dignified yet confident ease in his management of an amphitheatre crowd and its factions were taken as a measure of his enormous popularity and the rightness of his imperium. The amphitheatre munus thus served the Roman community as living theatre and a court in miniature, in which judgement could be served not only on those in the arena below, but on their judges. Amphitheatres also provided a means of social control. Their seating was "disorderly and indiscriminate" until Augustus prescribed its arrangement in his Social Reforms. To persuade the Senate, he expressed his distress on behalf of a senator who could not find seating at a crowded games in Puteoli: In consequence of this the senate decreed that, whenever any public show was given anywhere, the first row of seats should be reserved for senators; and at Rome he would not allow the envoys of the free and allied nations to sit in the orchestra, since he was informed that even freedmen were sometimes appointed. He separated the soldiery from the people. He assigned special seats to the married men of the commons, to boys under age their own section and the adjoining one to their preceptors; and he decreed that no one wearing a dark cloak should sit in the middle of the house. He would not allow women to view even the gladiators except from the upper seats, though it had been the custom for men and women to sit together at such shows. Only the Vestal virgins were assigned a place to themselves, opposite the praetor's tribunal. These arrangements do not seem to have been strongly enforced. Popular factions supported favourite gladiators and gladiator types. Under Augustan legislation, the Samnite type was renamed Secutor ("chaser", or "pursuer"). The secutor was equipped with a long, heavy "large" shield called a scutum; Secutores, their supporters and any heavyweight secutor-based types such as the Murmillo were secutarii. Lighter types, such as the Thraex, were equipped with a smaller, lighter shield called a parma, from which they and their supporters were named parmularii ("small shields"). Titus and Trajan preferred the parmularii and Domitian the secutarii; Marcus Aurelius took neither side. Nero seems to have enjoyed the brawls between rowdy, enthusiastic and sometimes violent factions, but called in the troops if they went too far. There were also local rivalries. At Pompeii's amphitheatre, during Nero's reign, the trading of insults between Pompeians and Nucerian spectators during public ludi led to stone throwing and riot. Many were killed or wounded. Nero banned gladiator munera (though not the games) at Pompeii for ten years as punishment. The story is told in Pompeian graffiti and high quality wall painting, with much boasting of Pompeii's "victory" over Nuceria. It is not known how many gladiatoria munera were given throughout the Roman period. Many, if not most, involved venationes, and in the later empire some may have been only that. In 165 BC, at least one munus was held during April's Megalesia. In the early imperial era, munera in Pompeii and neighbouring towns were dispersed from March through November. They included a provincial magnate's five-day munus of thirty pairs, plus beast hunts. A single late primary source, the Calendar of Furius Dionysius Philocalus for 354, shows how seldom gladiators featured among a multitude of official festivals. Of the 176 days reserved for spectacles of various kinds, 102 were for theatrical shows, 64 for chariot races and just 10 in December for gladiator games and venationes. A century before this, the emperor Alexander Severus (r. 222–235) may have intended a more even redistribution of munera throughout the year; but this would have broken with what had become the traditional positioning of the major gladiator games, at the year's ending. As Wiedemann points out, December was also the month for the Saturnalia, Saturn's festival, in which death was linked to renewal, and the lowest were honoured as the highest. According to Livy: "A man who knows how to conquer in war is a man who knows how to arrange a banquet and put on a show." Rome was essentially a landowning military aristocracy. From the early days of the Republic, ten years of military service were a citizen's duty and a prerequisite for election to public office. Devotio (willingness to sacrifice one's life to the greater good) was central to the Roman military ideal, and was the core of the Roman military oath. It applied from highest to lowest alike in the chain of command. As a soldier committed his life (voluntarily, at least in theory) to the greater cause of Rome's victory, he was not expected to survive defeat. The Punic Wars of the late 3rd century BC—in particular the near-catastrophic defeat of Roman arms at Cannae—had long-lasting effects on the Republic, its citizen armies, and the development of the gladiatorial munera. In the aftermath of Cannae, Scipio Africanus crucified Roman deserters and had non-Roman deserters thrown to the beasts. The Senate refused to ransom Hannibal's Roman captives: instead, they consulted the Sibylline books, then made drastic preparations: In obedience to the Books of Destiny, some strange and unusual sacrifices were made, human sacrifices amongst them. A Gaulish man and a Gaulish woman and a Greek man and a Greek woman were buried alive under the Forum Boarium ... They were lowered into a stone vault, which had on a previous occasion also been polluted by human victims, a practice most repulsive to Roman feelings. When the gods were believed to be duly propitiated ... Armour, weapons, and other things of the kind were ordered to be in readiness, and the ancient spoils gathered from the enemy were taken down from the temples and colonnades. The dearth of freemen necessitated a new kind of enlistment; 8,000 sturdy youths from amongst the slaves were armed at the public cost, after they had each been asked whether they were willing to serve or no. These soldiers were preferred, as there would be an opportunity of ransoming them when taken prisoners at a lower price. The account notes, uncomfortably, the bloodless human sacrifices performed to help turn the tide of the war in Rome's favour. While the Senate mustered their willing slaves, Hannibal offered his dishonoured Roman captives a chance for honourable death, in what Livy describes as something very like the Roman munus. The munus thus represented an essentially military, self-sacrificial ideal, taken to extreme fulfillment in the gladiator's oath. By the devotio of a voluntary oath, a slave might achieve the quality of a Roman (Romanitas), become the embodiment of true virtus (manliness, or manly virtue), and paradoxically, be granted missio while remaining a slave. The gladiator as a specialist fighter, and the ethos and organization of the gladiator schools, would inform the development of the Roman military as the most effective force of its time. Following defeat at the Battle of Arausio in 105 BC: ...weapons training was given to soldiers by P. Rutilius, consul with C. Mallis. For he, following the example of no previous general, with teachers summoned from the gladiatorial training school of C. Aurelus Scaurus, implanted in the legions a more sophisticated method of avoiding and dealing a blow and mixed bravery with skill and skill back again with virtue so that skill became stronger by bravery's passion and passion became more wary with the knowledge of this art. The military were great aficionados of the games, and supervised the schools. Many schools and amphitheatres were sited at or near military barracks, and some provincial army units owned gladiator troupes. As the Republic wore on, the term of military service increased from ten to the sixteen years formalised by Augustus in the Principate. It would rise to twenty, and later, to twenty-five years. Roman military discipline was ferocious; severe enough to provoke mutiny, despite the consequences. A career as a volunteer gladiator may have seemed an attractive option for some. In AD 69, the Year of the Four Emperors, Otho's troops at Bedriacum included 2000 gladiators. Opposite him on the field, Vitellius's army was swollen by levies of slaves, plebs and gladiators. In 167 AD, troop depletions by plague and desertion may have prompted Marcus Aurelius to draft gladiators at his own expense. During the Civil Wars that led to the Principate, Octavian (later Augustus) acquired the personal gladiator troop of his erstwhile opponent, Mark Antony. They had served their late master with exemplary loyalty but thereafter, they disappear from the record. Roman writing as a whole demonstrates a deep ambivalence towards the gladiatoria munera. Even the most complex and sophisticated munera of the Imperial era evoked the ancient, ancestral dii manes of the underworld and were framed by the protective, lawful rites of sacrificium. Their popularity made their co-option by the state inevitable; Cicero acknowledged their sponsorship as a political imperative. Despite the popular adulation of gladiators, they were set apart, despised; and despite Cicero's contempt for the mob, he shared their admiration: "Even when [gladiators] have been felled, let alone when they are standing and fighting, they never disgrace themselves. And suppose a gladiator has been brought to the ground, when do you ever see one twist his neck away after he has been ordered to extend it for the death blow?" His own death would later emulate this example. Yet, Cicero could also refer to his popularist opponent Clodius, publicly and scathingly, as a bustuarius—literally, a "funeral-man", implying that Clodius has shown the moral temperament of the lowest sort of gladiator. "Gladiator" could be (and was) used as an insult throughout the Roman period, and "Samnite" doubled the insult, despite the popularity of the Samnite type. Silius Italicus wrote, as the games approached their peak, that the degenerate Campanians had devised the very worst of precedents, which now threatened the moral fabric of Rome: "It was their custom to enliven their banquets with bloodshed and to combine with their feasting the horrid sight of armed men [(Samnites)] fighting; often the combatants fell dead above the very cups of the revelers, and the tables were stained with streams of blood. Thus demoralised was Capua." Death could be rightly meted out as punishment, or met with equanimity in peace or war, as a gift of fate; but when inflicted as entertainment, with no underlying moral or religious purpose, it could only pollute and demean those who witnessed it. The munus itself could be interpreted as pious necessity, but its increasing luxury corroded Roman virtue, and created an un-Roman appetite for profligacy and self-indulgence. Caesar's 46 BC ludi were mere entertainment for political gain, a waste of lives and of money that would have been better doled out to his legionary veterans. Yet for Seneca, and for Marcus Aurelius—both professed Stoics—the degradation of gladiators in the munus highlighted their Stoic virtues: their unconditional obedience to their master and to fate, and equanimity in the face of death. Having "neither hope nor illusions", the gladiator could transcend his own debased nature, and disempower death itself by meeting it face to face. Courage, dignity, altruism and loyalty were morally redemptive; Lucian idealised this principle in his story of Sisinnes, who voluntarily fought as a gladiator, earned 10,000 drachmas and used it to buy freedom for his friend, Toxaris. Seneca had a lower opinion of the mob's un-Stoical appetite for ludi meridiani: "Man [is]...now slaughtered for jest and sport; and those whom it used to be unholy to train for the purpose of inflicting and enduring wounds are thrust forth exposed and defenceless." These accounts seek a higher moral meaning from the munus, but Ovid's very detailed (though satirical) instructions for seduction in the amphitheatre suggest that the spectacles could generate a potent and dangerously sexual atmosphere. Augustan seating prescriptions placed women—excepting the Vestals, who were legally inviolate—as far as possible from the action of the arena floor; or tried to. There remained the thrilling possibility of clandestine sexual transgression by high-caste spectators and their heroes of the arena. Such assignations were a source for gossip and satire but some became unforgivably public: What was the youthful charm that so fired Eppia? What hooked her? What did she see in him to make her put up with being called "the gladiator's moll"? Her poppet, her Sergius, was no chicken, with a dud arm that prompted hope of early retirement. Besides his face looked a proper mess, helmet-scarred, a great wart on his nose, an unpleasant discharge always trickling from one eye. But he was a gladiator. That word makes the whole breed seem handsome, and made her prefer him to her children and country, her sister, her husband. Steel is what they fall in love with. Eppia—a senator's wife–and her Sergius eloped to Egypt, where he deserted her. Most gladiators would have aimed lower. Two wall graffiti in Pompeii describe Celadus the Thraex as "the sigh of the girls" and "the glory of the girls"—which may or may not have been Celadus' own wishful thinking. In the later Imperial era, Servius Maurus Honoratus uses the same disparaging term as Cicero—bustuarius—for gladiators. Tertullian used it somewhat differently—all victims of the arena were sacrificial in his eyes—and expressed the paradox of the arenarii as a class, from a Christian viewpoint: On the one and the same account they glorify them and they degrade and diminish them; yes, further, they openly condemn them to disgrace and civil degradation; they keep them religiously excluded from council chamber, rostrum, senate, knighthood, and every other kind of office and a good many distinctions. The perversity of it! They love whom they lower; they despise whom they approve; the art they glorify, the artist they disgrace. In this new Play, I attempted to follow the old custom of mine, of making a fresh trial; I brought it on again. In the first Act I pleased; when in the meantime a rumor spread that gladiators were about to be exhibited; the populace flock together, make a tumult, clamor aloud, and fight for their places: meantime, I was unable to maintain my place. Images of gladiators were found throughout the Republic and Empire, among all classes. Walls in the 2nd century BC "Agora of the Italians" at Delos were decorated with paintings of gladiators. Mosaics dating from the 2nd through 4th centuries AD have been invaluable in the reconstruction of combat and its rules, gladiator types and the development of the munus. Throughout the Roman world, ceramics, lamps, gems and jewellery, mosaics, reliefs, wall paintings and statuary offer evidence, sometimes the best evidence, of the clothing, props, equipment, names, events, prevalence and rules of gladiatorial combat. Earlier periods provide only occasional, perhaps exceptional examples. The Gladiator Mosaic in the Galleria Borghese displays several gladiator types, and the Bignor Roman Villa mosaic from Provincial Britain shows Cupids as gladiators. Souvenir ceramics were produced depicting named gladiators in combat; similar images of higher quality, were available on more expensive articles in high quality ceramic, glass or silver. Some of the best preserved gladiator graffiti are from Pompeii and Herculaneum, in public areas including Pompeii's Forum and amphitheater, and in the private residences of the upper, middle and lower classes. They clearly show how gladiator munera pervaded Pompeiian culture; they provide information pertaining to particular gladiators, and sometimes include their names, status as slaves or freeborn volunteers, and their match records. Pliny the Elder gives vivid examples of the popularity of gladiator portraiture in Antium and an artistic treat laid on by an adoptive aristocrat for the solidly plebeian citizens of the Roman Aventine: When a freedman of Nero was giving a gladiatorial show at Antium, the public porticoes were covered with paintings, so we are told, containing life-like portraits of all the gladiators and assistants. This portraiture of gladiators has been the highest interest in art for many centuries now, but it was Gaius Terentius who began the practice of having pictures made of gladiatorial shows and exhibited in public; in honour of his grandfather who had adopted him he provided thirty pairs of Gladiators in the Forum for three consecutive days, and exhibited a picture of the matches in the Grove of Diana. Some Roman reenactors attempt to recreate Roman gladiator troupes. Some of these groups are part of larger Roman reenactment groups, and others are wholly independent, though they might participate in larger demonstrations of Roman reenacting or historical reenacting in general. These groups usually focus on portraying mock gladiatorial combat in as accurate a manner as possible.
[ { "paragraph_id": 0, "text": "A gladiator (Latin: gladiator, \"swordsman\", from gladius, \"sword\") was an armed combatant who entertained audiences in the Roman Republic and Roman Empire in violent confrontations with other gladiators, wild animals, and condemned criminals. Some gladiators were volunteers who risked their lives and their legal and social standing by appearing in the arena. Most were despised as slaves, schooled under harsh conditions, socially marginalized, and segregated even in death.", "title": "" }, { "paragraph_id": 1, "text": "Irrespective of their origin, gladiators offered spectators an example of Rome's martial ethics and, in fighting or dying well, they could inspire admiration and popular acclaim. They were celebrated in high and low art, and their value as entertainers was commemorated in precious and commonplace objects throughout the Roman world.", "title": "" }, { "paragraph_id": 2, "text": "The origin of gladiatorial combat is open to debate. There is evidence of it in funeral rites during the Punic Wars of the 3rd century BC, and thereafter it rapidly became an essential feature of politics and social life in the Roman world. Its popularity led to its use in ever more lavish and costly games.", "title": "" }, { "paragraph_id": 3, "text": "The gladiator games lasted for nearly a thousand years, reaching their peak between the 1st century BC and the 2nd century AD. Christians disapproved of the games because they involved idolatrous pagan rituals, and the popularity of gladatorial contests declined in the fifth century, leading to their disappearance.", "title": "" }, { "paragraph_id": 4, "text": "Early literary sources seldom agree on the origins of gladiators and the gladiator games. In the late 1st century BC, Nicolaus of Damascus believed they were Etruscan. A generation later, Livy wrote that they were first held in 310 BC by the Campanians in celebration of their victory over the Samnites. Long after the games had ceased, the 7th century AD writer Isidore of Seville derived Latin lanista (manager of gladiators) from the Etruscan word for \"executioner\", and the title of \"Charon\" (an official who accompanied the dead from the Roman gladiatorial arena) from Charun, psychopomp of the Etruscan underworld. This was accepted and repeated in most early modern, standard histories of the games.", "title": "History" }, { "paragraph_id": 5, "text": "For some modern scholars, reappraisal of pictorial evidence supports a Campanian origin, or at least a borrowing, for the games and gladiators. Campania hosted the earliest known gladiator schools (ludi). Tomb frescoes from the Campanian city of Paestum (4th century BC) show paired fighters, with helmets, spears and shields, in a propitiatory funeral blood-rite that anticipates early Roman gladiator games. Compared to these images, supporting evidence from Etruscan tomb-paintings is tentative and late. The Paestum frescoes may represent the continuation of a much older tradition, acquired or inherited from Greek colonists of the 8th century BC.", "title": "History" }, { "paragraph_id": 6, "text": "Livy places the first Roman gladiator games (264 BC) in the early stage of Rome's First Punic War, against Carthage, when Decimus Junius Brutus Scaeva had three gladiator pairs fight to the death in Rome's \"cattle market\" forum (Forum Boarium) to honor his dead father, Brutus Pera. Livy describes this as a \"munus\" (plural: munera), a gift, in this case a commemorative duty owed the manes (spirit, or shade) of a dead ancestor by his descendants. The development of the gladiator munus and its gladiator types was most strongly influenced by Samnium's support for Hannibal and the subsequent punitive expeditions against the Samnites by Rome and its Campanian allies; the earliest, most frequently mentioned and probably most popular type was the Samnite.", "title": "History" }, { "paragraph_id": 7, "text": "The war in Samnium, immediately afterwards, was attended with equal danger and an equally glorious conclusion. The enemy, besides their other warlike preparation, had made their battle-line to glitter with new and splendid arms. There were two corps: the shields of the one were inlaid with gold, of the other with silver ... The Romans had already heard of these splendid accoutrements, but their generals had taught them that a soldier should be rough to look on, not adorned with gold and silver but putting his trust in iron and in courage ... The Dictator, as decreed by the senate, celebrated a triumph, in which by far the finest show was afforded by the captured armour. So the Romans made use of the splendid armour of their enemies to do honour to their gods; while the Campanians, in consequence of their pride and in hatred of the Samnites, equipped after this fashion the gladiators who furnished them entertainment at their feasts, and bestowed on them the name Samnites.", "title": "History" }, { "paragraph_id": 8, "text": "Livy's account skirts the funereal, sacrificial function of early Roman gladiator combats and reflects the later theatrical ethos of the Roman gladiator show: splendidly, exotically armed and armoured barbarians, treacherous and degenerate, are dominated by Roman iron and native courage. His plain Romans virtuously dedicate the magnificent spoils of war to the gods. Their Campanian allies stage a dinner entertainment using gladiators who may not be Samnites, but play the Samnite role. Other groups and tribes would join the cast list as Roman territories expanded. Most gladiators were armed and armoured in the manner of the enemies of Rome. The gladiator munus became a morally instructive form of historic enactment in which the only honourable option for the gladiator was to fight well, or else die well.", "title": "History" }, { "paragraph_id": 9, "text": "In 216 BC, Marcus Aemilius Lepidus, late consul and augur, was honoured by his sons with three days of gladiatora munera in the Forum Romanum, using twenty-two pairs of gladiators. Ten years later, Scipio Africanus gave a commemorative munus in Iberia for his father and uncle, casualties in the Punic Wars. High status non-Romans, and possibly Romans too, volunteered as his gladiators. The context of the Punic Wars and Rome's near-disastrous defeat at the Battle of Cannae (216 BC) link these early games to munificence, the celebration of military victory and the religious expiation of military disaster; these munera appear to serve a morale-raising agenda in an era of military threat and expansion. The next recorded munus, held for the funeral of Publius Licinius in 183 BC, was more extravagant. It involved three days of funeral games, 120 gladiators, and public distribution of meat (visceratio data)—a practice that reflected the gladiatorial fights at Campanian banquets described by Livy and later deplored by Silius Italicus.", "title": "History" }, { "paragraph_id": 10, "text": "The enthusiastic adoption of gladiatoria munera by Rome's Iberian allies shows how easily, and how early, the culture of the gladiator munus permeated places far from Rome itself. By 174 BC, \"small\" Roman munera (private or public), provided by an editor of relatively low importance, may have been so commonplace and unremarkable they were not considered worth recording:", "title": "History" }, { "paragraph_id": 11, "text": "Many gladiatorial games were given in that year, some unimportant, one noteworthy beyond the rest—that of Titus Flamininus which he gave to commemorate the death of his father, which lasted four days, and was accompanied by a public distribution of meats, a banquet, and scenic performances. The climax of the show which was big for the time was that in three days seventy four gladiators fought.", "title": "History" }, { "paragraph_id": 12, "text": "In 105 BC, the ruling consuls offered Rome its first taste of state-sponsored \"barbarian combat\" demonstrated by gladiators from Capua, as part of a training program for the military. It proved immensely popular. Thereafter, the gladiator contests formerly restricted to private munera were often included in the state games (ludi) that accompanied the major religious festivals. Where traditional ludi had been dedicated to a deity, such as Jupiter, the munera could be dedicated to an aristocratic sponsor's divine or heroic ancestor.", "title": "History" }, { "paragraph_id": 13, "text": "Gladiatorial games offered their sponsors extravagantly expensive but effective opportunities for self-promotion, and gave their clients and potential voters exciting entertainment at little or no cost to themselves. Gladiators became big business for trainers and owners, for politicians on the make and those who had reached the top and wished to stay there. A politically ambitious privatus (private citizen) might postpone his deceased father's munus to the election season, when a generous show might drum up votes; those in power and those seeking it needed the support of the plebeians and their tribunes, whose votes might be won with the mere promise of an exceptionally good show. Sulla, during his term as praetor, showed his usual acumen in breaking his own sumptuary laws to give the most lavish munus yet seen in Rome, for the funeral of his wife, Metella.", "title": "History" }, { "paragraph_id": 14, "text": "In the closing years of the politically and socially unstable Late Republic, any aristocratic owner of gladiators had political muscle at his disposal. In 65 BC, newly elected curule aedile Julius Caesar held games that he justified as munus to his father, who had been dead for 20 years. Despite an already enormous personal debt, he used 320 gladiator pairs in silvered armour. He had more available in Capua but the senate, mindful of the recent Spartacus revolt and fearful of Caesar's burgeoning private armies and rising popularity, imposed a limit of 320 pairs as the maximum number of gladiators any citizen could keep in Rome. Caesar's showmanship was unprecedented in scale and expense; he had staged a munus as memorial rather than funeral rite, eroding any practical or meaningful distinction between munus and ludi.", "title": "History" }, { "paragraph_id": 15, "text": "Gladiatorial games, usually linked with beast shows, spread throughout the republic and beyond. Anti-corruption laws of 65 and 63 BC attempted but failed to curb the political usefulness of the games to their sponsors. Following Caesar's assassination and the Roman Civil War, Augustus assumed imperial authority over the games, including munera, and formalised their provision as a civic and religious duty. His revision of sumptuary law capped private and public expenditure on munera, claiming to save the Roman elite from the bankruptcies they would otherwise suffer, and restricting gladiator munera to the festivals of Saturnalia and Quinquatria. Henceforth, an imperial praetor's official munus was allowed a maximum of 120 gladiators at a ceiling cost of 25,000 denarii; an imperial ludi might cost no less than 180,000 denarii. Throughout the empire, the greatest and most celebrated games would now be identified with the state-sponsored imperial cult, which furthered public recognition, respect and approval for the emperor's divine numen, his laws, and his agents. Between 108 and 109 AD, Trajan celebrated his Dacian victories using a reported 10,000 gladiators and 11,000 animals over 123 days. The cost of gladiators and munera continued to spiral out of control. Legislation of 177 AD by Marcus Aurelius did little to stop it, and was completely ignored by his son, Commodus.", "title": "History" }, { "paragraph_id": 16, "text": "The decline of the gladiatorial munus was a far from straightforward process. The crisis of the 3rd century imposed increasing military demands on the imperial purse, from which the Roman Empire never quite recovered, and lesser magistrates found their provision of various obligatory munera an increasingly unrewarding tax on the doubtful privileges of office. Still, emperors continued to subsidize the games as a matter of undiminished public interest. In the early 3rd century AD, the Christian writer Tertullian condemned the attendance of Christians: the combats, he said, were murder, their witnessing spiritually and morally harmful and the gladiator an instrument of pagan human sacrifice. Carolyn Osiek comments:", "title": "History" }, { "paragraph_id": 17, "text": "The reason, we would suppose, would be primarily the bloodthirsty violence, but his is different: the extent of religious ritual and meaning in them, which constitutes idolatry. Although Tertullian states that these events are forbidden to believers, the fact that he writes a whole treatise to convince Christians that they should not attend (De Spectaculis) shows that apparently not everyone agreed to stay away from them.", "title": "History" }, { "paragraph_id": 18, "text": "In the next century, Augustine of Hippo deplored the youthful fascination of his friend (and later fellow-convert and bishop) Alypius of Thagaste, with the munera spectacle as inimical to a Christian life and salvation. Amphitheatres continued to host the spectacular administration of Imperial justice: in 315 Constantine the Great condemned child-snatchers ad bestias in the arena. Ten years later, he forbade criminals being forced to fight to the death as gladiators:", "title": "History" }, { "paragraph_id": 19, "text": "Bloody spectacles do not please us in civil ease and domestic quiet. For that reason we forbid those people to be gladiators who by reason of some criminal act were accustomed to deserve this condition and sentence. You shall rather sentence them to serve in the mines so that they may acknowledge the penalties of their crimes with blood.", "title": "History" }, { "paragraph_id": 20, "text": "This has been interpreted as a ban on gladiatorial combat. Yet, in the last year of his life, Constantine wrote a letter to the citizens of Hispellum, granting its people the right to celebrate his rule with gladiatorial games.", "title": "History" }, { "paragraph_id": 21, "text": "In 365, Valentinian I (r. 364–375) threatened to fine a judge who sentenced Christians to the arena and in 384 attempted, like most of his predecessors, to limit the expenses of gladiatora munera.", "title": "History" }, { "paragraph_id": 22, "text": "In 393, Theodosius I (r. 379–395) adopted Nicene Christianity as the state religion of the Roman Empire and banned pagan festivals. The ludi continued, very gradually shorn of their stubbornly pagan elements. Honorius (r. 395–423) legally ended gladiator games in 399, and again in 404, at least in the Western Roman Empire. According to Theodoret, the ban was in consequence of Saint Telemachus' martyrdom by spectators at a gladiator munus. Valentinian III (r. 425–455) repeated the ban in 438, perhaps effectively, though venationes continued beyond 536. By this time, interest in gladiator contests had waned throughout the Roman world. In the Byzantine Empire, theatrical shows and chariot races continued to attract the crowds, and drew a generous imperial subsidy.", "title": "History" }, { "paragraph_id": 23, "text": "The earliest munera took place at or near the tomb of the deceased and these were organised by their munerator (who made the offering). Later games were held by an editor, either identical with the munerator or an official employed by him. As time passed, these titles and meanings may have merged. In the republican era, private citizens could own and train gladiators, or lease them from a lanista (owner of a gladiator training school). From the principate onwards, private citizens could hold munera and own gladiators only with imperial permission, and the role of editor was increasingly tied to state officialdom. Legislation by Claudius required that quaestors, the lowest rank of Roman magistrate, personally subsidise two-thirds of the costs of games for their small-town communities—in effect, both an advertisement of their personal generosity and a part-purchase of their office. Bigger games were put on by senior magistrates, who could better afford them. The largest and most lavish of all were paid for by the emperor himself.", "title": "Organisation" }, { "paragraph_id": 24, "text": "The earliest types of gladiator were named after Rome's enemies of that time: the Samnite, Thracian and Gaul. The Samnite, heavily armed, elegantly helmed and probably the most popular type, was renamed secutor and the Gaul renamed murmillo, once these former enemies had been conquered then absorbed into Rome's Empire. In the mid-republican munus, each type seems to have fought against a similar or identical type. In the later Republic and early Empire, various \"fantasy\" types were introduced, and were set against dissimilar but complementary types. For example, the bareheaded, nimble retiarius (\"net-man\"), armoured only at the left arm and shoulder, pitted his net, trident and dagger against the more heavily armoured, helmeted Secutor. Most depictions of gladiators show the most common and popular types. Passing literary references to others has allowed their tentative reconstruction. Other novelties introduced around this time included gladiators who fought from chariots or carts, or from horseback. At an unknown date, cestus fighters were introduced to Roman arenas, probably from Greece, armed with potentially lethal boxing gloves.", "title": "The gladiators" }, { "paragraph_id": 25, "text": "The trade in gladiators was empire-wide, and subjected to official supervision. Rome's military success produced a supply of soldier-prisoners who were redistributed for use in State mines or amphitheatres and for sale on the open market. For example, in the aftermath of the Jewish Revolt, the gladiator schools received an influx of Jews—those rejected for training would have been sent straight to the arenas as noxii (lit. \"hurtful ones\"). The best—the most robust—were sent to Rome. In Rome's military ethos, enemy soldiers who had surrendered or allowed their own capture and enslavement had been granted an unmerited gift of life. Their training as gladiators would give them opportunity to redeem their honour in the munus.", "title": "The gladiators" }, { "paragraph_id": 26, "text": "Two other sources of gladiators, found increasingly during the Principate and the relatively low military activity of the Pax Romana, were slaves condemned to the arena (damnati), to gladiator schools or games (ad ludum gladiatorium) as punishment for crimes, and the paid volunteers (auctorati) who by the late Republic may have comprised approximately half—and possibly the most capable half—of all gladiators. The use of volunteers had a precedent in the Iberian munus of Scipio Africanus; but none of those had been paid.", "title": "The gladiators" }, { "paragraph_id": 27, "text": "For the poor, and for non-citizens, enrollment in a gladiator school offered a trade, regular food, housing of sorts and a fighting chance of fame and fortune. Mark Antony chose a troupe of gladiators to be his personal bodyguard. Gladiators customarily kept their prize money and any gifts they received, and these could be substantial. Tiberius offered several retired gladiators 100,000 sesterces each to return to the arena. Nero gave the gladiator Spiculus property and residence \"equal to those of men who had celebrated triumphs.\"", "title": "The gladiators" }, { "paragraph_id": 28, "text": "From the 60s AD female gladiators appear as rare and \"exotic markers of exceptionally lavish spectacle\". In 66 AD, Nero had Ethiopian women, men and children fight at a munus to impress the King Tiridates I of Armenia. Romans seem to have found the idea of a female gladiator novel and entertaining, or downright absurd; Juvenal titillates his readers with a woman named \"Mevia\", hunting boars in the arena \"with spear in hand and breasts exposed\", and Petronius mocks the pretensions of a rich, low-class citizen, whose munus includes a woman fighting from a cart or chariot. A munus of 89 AD, during Domitian's reign, featured a battle between female gladiators, described as \"Amazons\". In Halicarnassus, a 2nd-century AD relief depicts two female combatants named \"Amazon\" and \"Achillia\"; their match ended in a draw. In the same century, an epigraph praises one of Ostia's local elite as the first to \"arm women\" in the history of its games. Female gladiators probably submitted to the same regulations and training as their male counterparts. Roman morality required that all gladiators be of the lowest social classes, and emperors who failed to respect this distinction earned the scorn of posterity. Cassius Dio takes pains to point out that when the much admired emperor Titus used female gladiators, they were of acceptably low class.", "title": "The gladiators" }, { "paragraph_id": 29, "text": "Some regarded female gladiators of any type or class as a symptom of corrupted Roman appetites, morals and womanhood. Before he became emperor, Septimius Severus may have attended the Antiochene Olympic Games, which had been revived by the emperor Commodus and included traditional Greek female athletics. Septimius' attempt to give Rome a similarly dignified display of female athletics was met by the crowd with ribald chants and cat-calls. Probably as a result, he banned the use of female gladiators in 200 AD.", "title": "The gladiators" }, { "paragraph_id": 30, "text": "Caligula, Titus, Hadrian, Lucius Verus, Caracalla, Geta and Didius Julianus were all said to have performed in the arena, either in public or private, but risks to themselves were minimal. Claudius, characterised by his historians as morbidly cruel and boorish, fought a whale trapped in the harbor in front of a group of spectators. Commentators invariably disapproved of such performances.", "title": "The gladiators" }, { "paragraph_id": 31, "text": "Commodus was a fanatical participant at the ludi, and compelled Rome's elite to attend his performances as gladiator, bestiarius or venator. Most of his performances as a gladiator were bloodless affairs, fought with wooden swords; he invariably won. He was said to have restyled Nero's colossal statue in his own image as \"Hercules Reborn\", dedicated to himself as \"Champion of secutores; only left-handed fighter to conquer twelve times one thousand men.\" He was said to have killed 100 lions in one day, almost certainly from an elevated platform surrounding the arena perimeter, which allowed him to safely demonstrate his marksmanship. On another occasion, he decapitated a running ostrich with a specially designed dart, carried the bloodied head and his sword over to the Senatorial seats and gesticulated as though they were next. As reward for these services, he drew a gigantic stipend from the public purse.", "title": "The gladiators" }, { "paragraph_id": 32, "text": "Gladiator games were advertised well beforehand, on billboards that gave the reason for the game, its editor, venue, date and the number of paired gladiators (ordinarii) to be used. Other highlighted features could include details of venationes, executions, music and any luxuries to be provided for the spectators, such as an awning against the sun, water sprinklers, food, drink, sweets and occasionally \"door prizes\". For enthusiasts and gamblers, a more detailed program (libellus) was distributed on the day of the munus, showing the names, types and match records of gladiator pairs, and their order of appearance. Left-handed gladiators were advertised as a rarity; they were trained to fight right-handers, which gave them an advantage over most opponents and produced an interestingly unorthodox combination.", "title": "The games" }, { "paragraph_id": 33, "text": "The night before the munus, the gladiators were given a banquet and opportunity to order their personal and private affairs; Futrell notes its similarity to a ritualistic or sacramental \"last meal\". These were probably both family and public events which included even the noxii, sentenced to die in the arena the following day; and the damnati, who would have at least a slender chance of survival. The event may also have been used to drum up more publicity for the imminent game.", "title": "The games" }, { "paragraph_id": 34, "text": "Official munera of the early Imperial era seem to have followed a standard form (munus legitimum). A procession (pompa) entered the arena, led by lictors who bore the fasces that signified the magistrate-editor's power over life and death. They were followed by a small band of trumpeters (tubicines) playing a fanfare. Images of the gods were carried in to \"witness\" the proceedings, followed by a scribe to record the outcome, and a man carrying the palm branch used to honour victors. The magistrate editor entered among a retinue who carried the arms and armour to be used; the gladiators presumably came in last.", "title": "The games" }, { "paragraph_id": 35, "text": "The entertainments often began with venationes (beast hunts) and bestiarii (beast fighters). Next came the ludi meridiani, which were of variable content but usually involved executions of noxii, some of whom were condemned to be subjects of fatal re-enactments, based on Greek or Roman myths. Gladiators may have been involved in these as executioners, though most of the crowd, and the gladiators themselves, preferred the \"dignity\" of an even contest. There were also comedy fights; some may have been lethal. A crude Pompeian graffito suggests a burlesque of musicians, dressed as animals named Ursus tibicen (flute-playing bear) and Pullus cornicen (horn-blowing chicken), perhaps as accompaniment to clowning by paegniarii during a \"mock\" contest of the ludi meridiani.", "title": "The games" }, { "paragraph_id": 36, "text": "The gladiators may have held informal warm-up matches, using blunted or dummy weapons—some munera, however, may have used blunted weapons throughout. The editor, his representative or an honoured guest would check the weapons (probatio armorum) for the scheduled matches. These were the highlight of the day, and were as inventive, varied and novel as the editor could afford. Armatures could be very costly—some were flamboyantly decorated with exotic feathers, jewels and precious metals. Increasingly the munus was the editor's gift to spectators who had come to expect the best as their due.", "title": "The games" }, { "paragraph_id": 37, "text": "Lightly armed and armoured fighters, such as the retiarius, would tire less rapidly than their heavily armed opponents; most bouts would have lasted 10 to 15 minutes, or 20 minutes at most. In late Republican munera, between 10 and 13 matches could have been fought on one day; this assumes one match at a time in the course of an afternoon.", "title": "The games" }, { "paragraph_id": 38, "text": "Spectators preferred to watch highly skilled, well matched ordinarii with complementary fighting styles; these were the most costly to train and to hire. A general melee of several, lower-skilled gladiators was far less costly, but also less popular. Even among the ordinarii, match winners might have to fight a new, well-rested opponent, either a tertiarius (\"third choice gladiator\") by prearrangement; or a \"substitute\" gladiator (suppositicius) who fought at the whim of the editor as an unadvertised, unexpected \"extra\". This yielded two combats for the cost of three gladiators, rather than four; such contests were prolonged, and in some cases, more bloody. Most were probably of poor quality, but the emperor Caracalla chose to test a notably skilled and successful fighter named Bato against first one supposicitius, whom he beat, and then another, who killed him. At the opposite level of the profession, a gladiator reluctant to confront his opponent might be whipped, or goaded with hot irons, until he engaged through sheer desperation.", "title": "The games" }, { "paragraph_id": 39, "text": "Combats between experienced, well trained gladiators demonstrated a considerable degree of stagecraft. Among the cognoscenti, bravado and skill in combat were esteemed over mere hacking and bloodshed; some gladiators made their careers and reputation from bloodless victories. Suetonius describes an exceptional munus by Nero, in which no-one was killed, \"not even noxii (enemies of the state).\"", "title": "The games" }, { "paragraph_id": 40, "text": "Trained gladiators were expected to observe professional rules of combat. Most matches employed a senior referee (summa rudis) and an assistant, shown in mosaics with long staffs (rudes) to caution or separate opponents at some crucial point in the match. Referees were usually retired gladiators whose decisions, judgement and discretion were, for the most part, respected; they could stop bouts entirely, or pause them to allow the combatants rest, refreshment and a rub-down.", "title": "The games" }, { "paragraph_id": 41, "text": "Ludi and munera were accompanied by music, played as interludes, or building to a \"frenzied crescendo\" during combats, perhaps to heighten the suspense during a gladiator's appeal; blows may have been accompanied by trumpet-blasts. The Zliten mosaic in Libya (circa 80–100 AD) shows musicians playing an accompaniment to provincial games (with gladiators, bestiarii, or venatores and prisoners attacked by beasts). Their instruments are a long straight trumpet (tubicen), a large curved horn (Cornu) and a water organ (hydraulis). Similar representations (musicians, gladiators and bestiari) are found on a tomb relief in Pompeii.", "title": "The games" }, { "paragraph_id": 42, "text": "A match was won by the gladiator who overcame his opponent, or killed him outright. Victors received the palm branch and an award from the editor. An outstanding fighter might receive a laurel crown and money from an appreciative crowd but for anyone originally condemned ad ludum the greatest reward was manumission (emancipation), symbolised by the gift of a wooden training sword or staff (rudis) from the editor. Martial describes a match between Priscus and Verus, who fought so evenly and bravely for so long that when both acknowledged defeat at the same instant, Titus awarded victory and a rudis to each. Flamma was awarded the rudis four times, but chose to remain a gladiator. His gravestone in Sicily includes his record: \"Flamma, secutor, lived 30 years, fought 34 times, won 21 times, fought to a draw 9 times, defeated 4 times, a Syrian by nationality. Delicatus made this for his deserving comrade-in-arms.\"", "title": "The games" }, { "paragraph_id": 43, "text": "A gladiator could acknowledge defeat by raising a finger (ad digitum), in appeal to the referee to stop the combat and refer to the editor, whose decision would usually rest on the crowd's response. In the earliest munera, death was considered a righteous penalty for defeat; later, those who fought well might be granted remission at the whim of the crowd or the editor. During the Imperial era, matches advertised as sine missione (usually understood to mean \"without reprieve\" for the defeated) suggest that missio (the sparing of a defeated gladiator's life) had become common practice. The contract between editor and his lanista could include compensation for unexpected deaths; this could be \"some fifty times higher than the lease price\" of the gladiator.", "title": "The games" }, { "paragraph_id": 44, "text": "Under Augustus' rule, the demand for gladiators began to exceed supply, and matches sine missione were officially banned; an economical, pragmatic development that happened to match popular notions of \"natural justice\". When Caligula and Claudius refused to spare defeated but popular fighters, their own popularity suffered. In general, gladiators who fought well were likely to survive. At a Pompeian match between chariot-fighters, Publius Ostorius, with previous 51 wins to his credit, was granted missio after losing to Scylax, with 26 victories. By common custom, the spectators decided whether or not a losing gladiator should be spared, and chose the winner in the rare event of a standing tie. Even more rarely, perhaps uniquely, one stalemate ended in the killing of one gladiator by the editor himself. In any event, the final decision of death or life belonged to the editor, who signalled his choice with a gesture described by Roman sources as pollice verso meaning \"with a turned thumb\"; a description too imprecise for reconstruction of the gesture or its symbolism. Whether victorious or defeated, a gladiator was bound by oath to accept or implement his editor's decision, \"the victor being nothing but the instrument of his [editor's] will.\" Not all editors chose to go with the crowd, and not all those condemned to death for putting on a poor show chose to submit:", "title": "The games" }, { "paragraph_id": 45, "text": "Once a band of five retiarii in tunics, matched against the same number of secutores, yielded without a struggle; but when their death was ordered, one of them caught up his trident and slew all the victors. Caligula bewailed this in a public proclamation as a most cruel murder.", "title": "The games" }, { "paragraph_id": 46, "text": "A gladiator who was refused missio was despatched by his opponent. To die well, a gladiator should never ask for mercy, nor cry out. A \"good death\" redeemed the gladiator from the dishonourable weakness and passivity of defeat, and provided a noble example to those who watched:", "title": "The games" }, { "paragraph_id": 47, "text": "For death, when it stands near us, gives even to inexperienced men the courage not to seek to avoid the inevitable. So the gladiator, no matter how faint-hearted he has been throughout the fight, offers his throat to his opponent and directs the wavering blade to the vital spot. (Seneca. Epistles, 30.8)", "title": "The games" }, { "paragraph_id": 48, "text": "Some mosaics show defeated gladiators kneeling in preparation for the moment of death. Seneca's \"vital spot\" seems to have meant the neck. Gladiator remains from Ephesus confirm this.", "title": "The games" }, { "paragraph_id": 49, "text": "The body of a gladiator who had died well was placed on a couch of Libitina and removed with dignity to the arena morgue, where the corpse was stripped of armour, and probably had its throat cut as confirmation of death. The Christian author Tertullian, commenting on ludi meridiani in Roman Carthage during the peak era of the games, describes a more humiliating method of removal. One arena official, dressed as the \"brother of Jove\", Dis Pater (god of the underworld) strikes the corpse with a mallet. Another, dressed as Mercury, tests for life-signs with a heated \"wand\"; once confirmed as dead, the body is dragged from the arena.", "title": "The games" }, { "paragraph_id": 50, "text": "Whether these victims were gladiators or noxii is unknown. Modern pathological examination confirms the probably fatal use of a mallet on some, but not all the gladiator skulls found in a gladiators' cemetery. Kyle (1998) proposes that gladiators who disgraced themselves might have been subjected to the same indignities as noxii, denied the relative mercies of a quick death and dragged from the arena as carrion. Whether the corpse of such a gladiator could be redeemed from further ignominy by friends or familia is not known.", "title": "The games" }, { "paragraph_id": 51, "text": "The bodies of noxii, and possibly some damnati, were thrown into rivers or dumped unburied; Denial of funeral rites and memorial condemned the shade (manes) of the deceased to restless wandering upon the earth as a dreadful larva or lemur. Ordinary citizens, slaves and freedmen were usually buried beyond the town or city limits, to avoid the ritual and physical pollution of the living; professional gladiators had their own, separate cemeteries. The taint of infamia was perpetual.", "title": "The games" }, { "paragraph_id": 52, "text": "Gladiators could subscribe to a union (collegia), which ensured their proper burial, and sometimes a pension or compensation for wives and children. Otherwise, the gladiator's familia, which included his lanista, comrades and blood-kin, might fund his funeral and memorial costs, and use the memorial to assert their moral reputation as responsible, respectful colleagues or family members. Some monuments record the gladiator's career in some detail, including the number of appearances, victories—sometimes represented by an engraved crown or wreath—defeats, career duration, and age at death. Some include the gladiator's type, in words or direct representation: for example, the memorial of a retiarius at Verona included the engraving of a trident and sword. A wealthy editor might commission artwork to celebrate a particularly successful or memorable show, and include named portraits of winners and losers in action; the Borghese Gladiator Mosaic is a notable example. According to Cassius Dio, the emperor Caracalla gave the gladiator Bato a magnificent memorial and State funeral; more typical are the simple gladiator tombs of the Eastern Roman Empire, whose brief inscriptions include the following:", "title": "The games" }, { "paragraph_id": 53, "text": "\"The familia set this up in memory of Saturnilos.\" \"For Nikepharos, son of Synetos, Lakedaimonian, and for Narcissus the secutor. Titus Flavius Satyrus set up this monument in his memory from his own money.\" \"For Hermes. Paitraeites with his cell-mates set this up in memory\".", "title": "The games" }, { "paragraph_id": 54, "text": "Very little evidence survives of the religious beliefs of gladiators as a class, or their expectations of an afterlife. Modern scholarship offers little support for the once-prevalent notion that gladiators, venatores and bestiarii were personally or professionally dedicated to the cult of the Graeco-Roman goddess Nemesis. Rather, she seems to have represented a kind of \"Imperial Fortuna\" who dispensed Imperial retribution on the one hand, and Imperially subsidised gifts on the other—including the munera. One gladiator's tomb dedication clearly states that her decisions are not to be trusted. Many gladiator epitaphs claim Nemesis, fate, deception or treachery as the instrument of their death, never the superior skills of the flesh-and-blood adversary who defeated and killed them. Having no personal responsibility for his own defeat and death, the losing gladiator remains the better man, worth avenging.", "title": "The games" }, { "paragraph_id": 55, "text": "\"I, Victor, left-handed, lie here, but my homeland was in Thessalonica. Doom killed me, not the liar Pinnas. No longer let him boast. I had a fellow gladiator, Polyneikes, who killed Pinnas and avenged me. Claudius Thallus set up this memorial from what I left behind as a legacy.\"", "title": "The games" }, { "paragraph_id": 56, "text": "A gladiator might expect to fight in two or three munera annually, and an unknown number would have died in their first match. Few gladiators survived more than 10 contests, though one survived an extraordinary 150 bouts; and another died at 90 years of age, presumably long after retirement. A natural death following retirement is also likely for three individuals who died at 38, 45, and 48 years respectively. George Ville, using evidence from 1st century gladiator headstones, calculated an average age at death of 27, and mortality \"among all who entered the arena\" at 19/100. Marcus Junkelmann disputes Ville's calculation for average age at death; the majority would have received no headstone, and would have died early in their careers, at 18–25 years of age. Between the early and later Imperial periods the risk of death for defeated gladiators rose from 1/5 to 1/4, perhaps because missio was granted less often. Hopkins and Beard tentatively estimate a total of 400 arenas throughout the Roman Empire at its greatest extent, with a combined total of 8,000 deaths per annum from executions, combats and accidents.", "title": "The games" }, { "paragraph_id": 57, "text": "The earliest named gladiator school (singular: ludus; plural: ludi) is that of Aurelius Scaurus at Capua. He was lanista of the gladiators employed by the state circa 105 BC to instruct the legions and simultaneously entertain the public. Few other lanistae are known by name: they headed their familia gladiatoria, and had lawful power over life and death of every family member, including servi poenae, auctorati and ancillaries. Socially, they were infames, on a footing with pimps and butchers and despised as price gougers. No such stigma was attached to a gladiator owner (munerarius or editor) of good family, high status and independent means; Cicero congratulated his friend Atticus on buying a splendid troop—if he rented them out, he might recover their entire cost after two performances.", "title": "Schools and training" }, { "paragraph_id": 58, "text": "The Spartacus revolt had originated in a gladiator school privately owned by Lentulus Batiatus, and had been suppressed only after a protracted series of costly, sometimes disastrous campaigns by regular Roman troops. In the late Republican era, a fear of similar uprisings, the usefulness of gladiator schools in creating private armies, and the exploitation of munera for political gain led to increased restrictions on gladiator school ownership, siting and organisation. By Domitian's time, many had been more or less absorbed by the State, including those at Pergamum, Alexandria, Praeneste and Capua. The city of Rome itself had four; the Ludus Magnus (the largest and most important, housing up to about 2,000 gladiators), Ludus Dacicus, Ludus Gallicus, and the Ludus Matutinus, which trained bestiarii.", "title": "Schools and training" }, { "paragraph_id": 59, "text": "In the Imperial era, volunteers required a magistrate's permission to join a school as auctorati. If this was granted, the school's physician assessed their suitability. Their contract (auctoramentum) stipulated how often they were to perform, their fighting style and earnings. A condemned bankrupt or debtor accepted as novice (novicius) could negotiate with his lanista or editor for the partial or complete payment of his debt. Faced with runaway re-enlistment fees for skilled auctorati, Marcus Aurelius set their upper limit at 12,000 sesterces.", "title": "Schools and training" }, { "paragraph_id": 60, "text": "All prospective gladiators, whether volunteer or condemned, were bound to service by a sacred oath (sacramentum). Novices (novicii) trained under teachers of particular fighting styles, probably retired gladiators. They could ascend through a hierarchy of grades (singular: palus) in which primus palus was the highest. Lethal weapons were prohibited in the schools—weighted, blunt wooden versions were probably used. Fighting styles were probably learned through constant rehearsal as choreographed \"numbers\". An elegant, economical style was preferred. Training included preparation for a stoical, unflinching death. Successful training required intense commitment.", "title": "Schools and training" }, { "paragraph_id": 61, "text": "Those condemned ad ludum were probably branded or marked with a tattoo (stigma, plural stigmata) on the face, legs and/or hands. These stigmata may have been text—slaves were sometimes thus marked on the forehead until Constantine banned the use of facial stigmata in 325 AD. Soldiers were routinely marked on the hand.", "title": "Schools and training" }, { "paragraph_id": 62, "text": "Gladiators were typically accommodated in cells, arranged in barrack formation around a central practice arena. Juvenal describes the segregation of gladiators according to type and status, suggestive of rigid hierarchies within the schools: \"even the lowest scum of the arena observe this rule; even in prison they're separate\". Retiarii were kept away from damnati, and \"fag targeteers\" from \"armoured heavies\". As most ordinarii at games were from the same school, this kept potential opponents separate and safe from each other until the lawful munus. Discipline could be extreme, even lethal. Remains of a Pompeian ludus site attest to developments in supply, demand and discipline; in its earliest phase, the building could accommodate 15–20 gladiators. Its replacement could have housed about 100 and included a very small cell, probably for lesser punishments and so low that standing was impossible.", "title": "Schools and training" }, { "paragraph_id": 63, "text": "Despite the harsh discipline, gladiators represented a substantial investment for their lanista and were otherwise well fed and cared for. Their daily, high-energy, vegetarian diet consisted of barley, boiled beans, oatmeal, ash and dried fruit. Gladiators were sometimes called hordearii (eaters of barley). Romans considered barley inferior to wheat—a punishment for legionaries replaced their wheat ration with it—but it was thought to strengthen the body. Regular massage and high quality medical care helped mitigate an otherwise very severe training regimen. Part of Galen's medical training was at a gladiator school in Pergamum where he saw (and would later criticise) the training, diet, and long-term health prospects of the gladiators.", "title": "Schools and training" }, { "paragraph_id": 64, "text": "\"He vows to endure to be burned, to be bound, to be beaten, and to be killed by the sword.\" The gladiator's oath as cited by Petronius (Satyricon, 117).", "title": "Legal and social status" }, { "paragraph_id": 65, "text": "Modern customs and institutions offer few useful parallels to the legal and social context of the gladiatoria munera. In Roman law, anyone condemned to the arena or the gladiator schools (damnati ad ludum) was a servus poenae (slave of the penalty), and was considered to be under sentence of death unless manumitted. A rescript of Hadrian reminded magistrates that \"those sentenced to the sword\" (execution) should be despatched immediately \"or at least within the year\", and those sentenced to the ludi should not be discharged before five years, or three years if granted manumission. Only slaves found guilty of specific offences could be sentenced to the arena; however, citizens found guilty of particular offenses could be stripped of citizenship, formally enslaved, then sentenced; and slaves, once freed, could be legally reverted to slavery for certain offences. Arena punishment could be given for banditry, theft and arson, and for treasons such as rebellion, census evasion to avoid paying due taxes and refusal to swear lawful oaths.", "title": "Legal and social status" }, { "paragraph_id": 66, "text": "Offenders seen as particularly obnoxious to the state (noxii) received the most humiliating punishments. By the 1st century BC, noxii were being condemned to the beasts (damnati ad bestias) in the arena, with almost no chance of survival, or were made to kill each other. From the early Imperial era, some were forced to participate in humiliating and novel forms of mythological or historical enactment, culminating in their execution. Those judged less harshly might be condemned ad ludum venatorium or ad gladiatorium—combat with animals or gladiators—and armed as thought appropriate. These damnati at least might put on a good show and retrieve some respect and, very rarely, survive to fight another day. Some may even have become \"proper\" gladiators.", "title": "Legal and social status" }, { "paragraph_id": 67, "text": "Among the most admired and skilled auctorati were those who, having been granted manumission, volunteered to fight in the arena. Some of these highly trained and experienced specialists may have had no other practical choice open to them. Their legal status—slave or free—is uncertain. Under Roman law, a freed gladiator could not \"offer such services [as those of a gladiator] after manumission, because they cannot be performed without endangering [his] life.\" All contracted volunteers, including those of equestrian and senatorial class, were legally enslaved by their auctoratio because it involved their potentially lethal submission to a master. All arenarii (those who appeared in the arena) were \"infames by reputation\", a form of social dishonour which excluded them from most of the advantages and rights of citizenship. Payment for such appearances compounded their infamia. The legal and social status of even the most popular and wealthy auctorati was thus marginal at best. They could not vote, plead in court nor leave a will; and unless they were manumitted, their lives and property belonged to their masters. Nevertheless, there is evidence of informal if not entirely lawful practices to the contrary. Some \"unfree\" gladiators bequeathed money and personal property to wives and children, possibly via a sympathetic owner or familia; some had their own slaves and gave them their freedom. One gladiator was even granted \"citizenship\" to several Greek cities of the Eastern Roman world.", "title": "Legal and social status" }, { "paragraph_id": 68, "text": "Caesar's munus of 46 BC included at least one equestrian, son of a Praetor, and two volunteers of possible senatorial rank. Augustus, who enjoyed watching the games, forbade the participation of senators, equestrians and their descendants as fighters or arenarii, but in 11 AD he bent his own rules and allowed equestrians to volunteer because \"the prohibition was no use\". Under Tiberius, the Larinum decree (19 AD) reiterated Augustus' original prohibitions. Thereafter, Caligula flouted them and Claudius strengthened them. Nero and Commodus ignored them. Even after the adoption of Christianity as Rome's official religion, legislation forbade the involvement of Rome's upper social classes in the games, though not the games themselves. Throughout Rome's history, some volunteers were prepared to risk loss of status or reputation by appearing in the arena, whether for payment, glory or, as in one recorded case, to revenge an affront to their personal honour. In one extraordinary episode, an aristocratic descendant of the Gracchi, already infamous for his marriage, as a bride, to a male horn player, appeared in what may have been a non-lethal or farcical match. His motives are unknown, but his voluntary and \"shameless\" arena appearance combined the \"womanly attire\" of a lowly retiarius tunicatus, adorned with golden ribbons, with the apex headdress that marked him out as a priest of Mars. In Juvenal's account, he seems to have relished the scandalous self-display, applause and the disgrace he inflicted on his more sturdy opponent by repeatedly skipping away from the confrontation.", "title": "Legal and social status" }, { "paragraph_id": 69, "text": "As munera grew larger and more popular, open spaces such as the Forum Romanum were adapted (as the Forum Boarium had been) as venues in Rome and elsewhere, with temporary, elevated seating for the patron and high status spectators; they were popular but not truly public events:", "title": "Amphitheatres" }, { "paragraph_id": 70, "text": "A show of gladiators was to be exhibited before the people in the market-place, and most of the magistrates erected scaffolds round about, with an intention of letting them for advantage. Caius commanded them to take down their scaffolds, that the poor people might see the sport without paying anything. But nobody obeying these orders of his, he gathered together a body of labourers, who worked for him, and overthrew all the scaffolds the very night before the contest was to take place. So that by the next morning the market-place was cleared, and the common people had an opportunity of seeing the pastime. In this, the populace thought he had acted the part of a man; but he much disobliged the tribunes his colleagues, who regarded it as a piece of violent and presumptuous interference.", "title": "Amphitheatres" }, { "paragraph_id": 71, "text": "Towards the end of the Republic, Cicero (Murena, 72–73) still describes gladiator shows as ticketed—their political usefulness was served by inviting the rural tribunes of the plebs, not the people of Rome en masse–but in Imperial times, poor citizens in receipt of the corn dole were allocated at least some free seating, possibly by lottery. Others had to pay. Ticket scalpers (Locarii) sometimes sold or let out seats at inflated prices. Martial wrote that \"Hermes [a gladiator who always drew the crowds] means riches for the ticket scalpers\".", "title": "Amphitheatres" }, { "paragraph_id": 72, "text": "The earliest known Roman amphitheatre was built at Pompeii by Sullan colonists, around 70 BC. The first in the city of Rome was the extraordinary wooden amphitheatre of Gaius Scribonius Curio (built in 53 BC). The first part-stone amphitheatre in Rome was inaugurated in 29–30 BC, in time for the triple triumph of Octavian (later Augustus). Shortly after it burned down in 64 AD, Vespasian began its replacement, later known as the Amphitheatrum Flavium (Colosseum), which seated 50,000 spectators and would remain the largest in the Empire. It was inaugurated by Titus in 80 AD as the personal gift of the Emperor to the people of Rome, paid for by the imperial share of booty after the Jewish Revolt.", "title": "Amphitheatres" }, { "paragraph_id": 73, "text": "Amphitheatres were usually oval in plan. Their seating tiers surrounded the arena below, where the community's judgments were meted out, in full public view. From across the stands, crowd and editor could assess each other's character and temperament. For the crowd, amphitheatres afforded unique opportunities for free expression and free speech (theatralis licentia). Petitions could be submitted to the editor (as magistrate) in full view of the community. Factiones and claques could vent their spleen on each other, and occasionally on Emperors. The emperor Titus's dignified yet confident ease in his management of an amphitheatre crowd and its factions were taken as a measure of his enormous popularity and the rightness of his imperium. The amphitheatre munus thus served the Roman community as living theatre and a court in miniature, in which judgement could be served not only on those in the arena below, but on their judges. Amphitheatres also provided a means of social control. Their seating was \"disorderly and indiscriminate\" until Augustus prescribed its arrangement in his Social Reforms. To persuade the Senate, he expressed his distress on behalf of a senator who could not find seating at a crowded games in Puteoli:", "title": "Amphitheatres" }, { "paragraph_id": 74, "text": "In consequence of this the senate decreed that, whenever any public show was given anywhere, the first row of seats should be reserved for senators; and at Rome he would not allow the envoys of the free and allied nations to sit in the orchestra, since he was informed that even freedmen were sometimes appointed. He separated the soldiery from the people. He assigned special seats to the married men of the commons, to boys under age their own section and the adjoining one to their preceptors; and he decreed that no one wearing a dark cloak should sit in the middle of the house. He would not allow women to view even the gladiators except from the upper seats, though it had been the custom for men and women to sit together at such shows. Only the Vestal virgins were assigned a place to themselves, opposite the praetor's tribunal.", "title": "Amphitheatres" }, { "paragraph_id": 75, "text": "These arrangements do not seem to have been strongly enforced.", "title": "Amphitheatres" }, { "paragraph_id": 76, "text": "Popular factions supported favourite gladiators and gladiator types. Under Augustan legislation, the Samnite type was renamed Secutor (\"chaser\", or \"pursuer\"). The secutor was equipped with a long, heavy \"large\" shield called a scutum; Secutores, their supporters and any heavyweight secutor-based types such as the Murmillo were secutarii. Lighter types, such as the Thraex, were equipped with a smaller, lighter shield called a parma, from which they and their supporters were named parmularii (\"small shields\"). Titus and Trajan preferred the parmularii and Domitian the secutarii; Marcus Aurelius took neither side. Nero seems to have enjoyed the brawls between rowdy, enthusiastic and sometimes violent factions, but called in the troops if they went too far.", "title": "Amphitheatres" }, { "paragraph_id": 77, "text": "There were also local rivalries. At Pompeii's amphitheatre, during Nero's reign, the trading of insults between Pompeians and Nucerian spectators during public ludi led to stone throwing and riot. Many were killed or wounded. Nero banned gladiator munera (though not the games) at Pompeii for ten years as punishment. The story is told in Pompeian graffiti and high quality wall painting, with much boasting of Pompeii's \"victory\" over Nuceria.", "title": "Amphitheatres" }, { "paragraph_id": 78, "text": "It is not known how many gladiatoria munera were given throughout the Roman period. Many, if not most, involved venationes, and in the later empire some may have been only that. In 165 BC, at least one munus was held during April's Megalesia. In the early imperial era, munera in Pompeii and neighbouring towns were dispersed from March through November. They included a provincial magnate's five-day munus of thirty pairs, plus beast hunts. A single late primary source, the Calendar of Furius Dionysius Philocalus for 354, shows how seldom gladiators featured among a multitude of official festivals. Of the 176 days reserved for spectacles of various kinds, 102 were for theatrical shows, 64 for chariot races and just 10 in December for gladiator games and venationes. A century before this, the emperor Alexander Severus (r. 222–235) may have intended a more even redistribution of munera throughout the year; but this would have broken with what had become the traditional positioning of the major gladiator games, at the year's ending. As Wiedemann points out, December was also the month for the Saturnalia, Saturn's festival, in which death was linked to renewal, and the lowest were honoured as the highest.", "title": "Role in Roman life" }, { "paragraph_id": 79, "text": "According to Livy: \"A man who knows how to conquer in war is a man who knows how to arrange a banquet and put on a show.\"", "title": "Role in Roman life" }, { "paragraph_id": 80, "text": "Rome was essentially a landowning military aristocracy. From the early days of the Republic, ten years of military service were a citizen's duty and a prerequisite for election to public office. Devotio (willingness to sacrifice one's life to the greater good) was central to the Roman military ideal, and was the core of the Roman military oath. It applied from highest to lowest alike in the chain of command. As a soldier committed his life (voluntarily, at least in theory) to the greater cause of Rome's victory, he was not expected to survive defeat.", "title": "Role in Roman life" }, { "paragraph_id": 81, "text": "The Punic Wars of the late 3rd century BC—in particular the near-catastrophic defeat of Roman arms at Cannae—had long-lasting effects on the Republic, its citizen armies, and the development of the gladiatorial munera. In the aftermath of Cannae, Scipio Africanus crucified Roman deserters and had non-Roman deserters thrown to the beasts. The Senate refused to ransom Hannibal's Roman captives: instead, they consulted the Sibylline books, then made drastic preparations:", "title": "Role in Roman life" }, { "paragraph_id": 82, "text": "In obedience to the Books of Destiny, some strange and unusual sacrifices were made, human sacrifices amongst them. A Gaulish man and a Gaulish woman and a Greek man and a Greek woman were buried alive under the Forum Boarium ... They were lowered into a stone vault, which had on a previous occasion also been polluted by human victims, a practice most repulsive to Roman feelings. When the gods were believed to be duly propitiated ... Armour, weapons, and other things of the kind were ordered to be in readiness, and the ancient spoils gathered from the enemy were taken down from the temples and colonnades. The dearth of freemen necessitated a new kind of enlistment; 8,000 sturdy youths from amongst the slaves were armed at the public cost, after they had each been asked whether they were willing to serve or no. These soldiers were preferred, as there would be an opportunity of ransoming them when taken prisoners at a lower price.", "title": "Role in Roman life" }, { "paragraph_id": 83, "text": "The account notes, uncomfortably, the bloodless human sacrifices performed to help turn the tide of the war in Rome's favour. While the Senate mustered their willing slaves, Hannibal offered his dishonoured Roman captives a chance for honourable death, in what Livy describes as something very like the Roman munus. The munus thus represented an essentially military, self-sacrificial ideal, taken to extreme fulfillment in the gladiator's oath. By the devotio of a voluntary oath, a slave might achieve the quality of a Roman (Romanitas), become the embodiment of true virtus (manliness, or manly virtue), and paradoxically, be granted missio while remaining a slave. The gladiator as a specialist fighter, and the ethos and organization of the gladiator schools, would inform the development of the Roman military as the most effective force of its time. Following defeat at the Battle of Arausio in 105 BC:", "title": "Role in Roman life" }, { "paragraph_id": 84, "text": "...weapons training was given to soldiers by P. Rutilius, consul with C. Mallis. For he, following the example of no previous general, with teachers summoned from the gladiatorial training school of C. Aurelus Scaurus, implanted in the legions a more sophisticated method of avoiding and dealing a blow and mixed bravery with skill and skill back again with virtue so that skill became stronger by bravery's passion and passion became more wary with the knowledge of this art.", "title": "Role in Roman life" }, { "paragraph_id": 85, "text": "The military were great aficionados of the games, and supervised the schools. Many schools and amphitheatres were sited at or near military barracks, and some provincial army units owned gladiator troupes. As the Republic wore on, the term of military service increased from ten to the sixteen years formalised by Augustus in the Principate. It would rise to twenty, and later, to twenty-five years. Roman military discipline was ferocious; severe enough to provoke mutiny, despite the consequences. A career as a volunteer gladiator may have seemed an attractive option for some.", "title": "Role in Roman life" }, { "paragraph_id": 86, "text": "In AD 69, the Year of the Four Emperors, Otho's troops at Bedriacum included 2000 gladiators. Opposite him on the field, Vitellius's army was swollen by levies of slaves, plebs and gladiators. In 167 AD, troop depletions by plague and desertion may have prompted Marcus Aurelius to draft gladiators at his own expense. During the Civil Wars that led to the Principate, Octavian (later Augustus) acquired the personal gladiator troop of his erstwhile opponent, Mark Antony. They had served their late master with exemplary loyalty but thereafter, they disappear from the record.", "title": "Role in Roman life" }, { "paragraph_id": 87, "text": "Roman writing as a whole demonstrates a deep ambivalence towards the gladiatoria munera. Even the most complex and sophisticated munera of the Imperial era evoked the ancient, ancestral dii manes of the underworld and were framed by the protective, lawful rites of sacrificium. Their popularity made their co-option by the state inevitable; Cicero acknowledged their sponsorship as a political imperative. Despite the popular adulation of gladiators, they were set apart, despised; and despite Cicero's contempt for the mob, he shared their admiration: \"Even when [gladiators] have been felled, let alone when they are standing and fighting, they never disgrace themselves. And suppose a gladiator has been brought to the ground, when do you ever see one twist his neck away after he has been ordered to extend it for the death blow?\" His own death would later emulate this example. Yet, Cicero could also refer to his popularist opponent Clodius, publicly and scathingly, as a bustuarius—literally, a \"funeral-man\", implying that Clodius has shown the moral temperament of the lowest sort of gladiator. \"Gladiator\" could be (and was) used as an insult throughout the Roman period, and \"Samnite\" doubled the insult, despite the popularity of the Samnite type.", "title": "Role in Roman life" }, { "paragraph_id": 88, "text": "Silius Italicus wrote, as the games approached their peak, that the degenerate Campanians had devised the very worst of precedents, which now threatened the moral fabric of Rome: \"It was their custom to enliven their banquets with bloodshed and to combine with their feasting the horrid sight of armed men [(Samnites)] fighting; often the combatants fell dead above the very cups of the revelers, and the tables were stained with streams of blood. Thus demoralised was Capua.\" Death could be rightly meted out as punishment, or met with equanimity in peace or war, as a gift of fate; but when inflicted as entertainment, with no underlying moral or religious purpose, it could only pollute and demean those who witnessed it.", "title": "Role in Roman life" }, { "paragraph_id": 89, "text": "The munus itself could be interpreted as pious necessity, but its increasing luxury corroded Roman virtue, and created an un-Roman appetite for profligacy and self-indulgence. Caesar's 46 BC ludi were mere entertainment for political gain, a waste of lives and of money that would have been better doled out to his legionary veterans. Yet for Seneca, and for Marcus Aurelius—both professed Stoics—the degradation of gladiators in the munus highlighted their Stoic virtues: their unconditional obedience to their master and to fate, and equanimity in the face of death. Having \"neither hope nor illusions\", the gladiator could transcend his own debased nature, and disempower death itself by meeting it face to face. Courage, dignity, altruism and loyalty were morally redemptive; Lucian idealised this principle in his story of Sisinnes, who voluntarily fought as a gladiator, earned 10,000 drachmas and used it to buy freedom for his friend, Toxaris. Seneca had a lower opinion of the mob's un-Stoical appetite for ludi meridiani: \"Man [is]...now slaughtered for jest and sport; and those whom it used to be unholy to train for the purpose of inflicting and enduring wounds are thrust forth exposed and defenceless.\"", "title": "Role in Roman life" }, { "paragraph_id": 90, "text": "These accounts seek a higher moral meaning from the munus, but Ovid's very detailed (though satirical) instructions for seduction in the amphitheatre suggest that the spectacles could generate a potent and dangerously sexual atmosphere. Augustan seating prescriptions placed women—excepting the Vestals, who were legally inviolate—as far as possible from the action of the arena floor; or tried to. There remained the thrilling possibility of clandestine sexual transgression by high-caste spectators and their heroes of the arena. Such assignations were a source for gossip and satire but some became unforgivably public:", "title": "Role in Roman life" }, { "paragraph_id": 91, "text": "What was the youthful charm that so fired Eppia? What hooked her? What did she see in him to make her put up with being called \"the gladiator's moll\"? Her poppet, her Sergius, was no chicken, with a dud arm that prompted hope of early retirement. Besides his face looked a proper mess, helmet-scarred, a great wart on his nose, an unpleasant discharge always trickling from one eye. But he was a gladiator. That word makes the whole breed seem handsome, and made her prefer him to her children and country, her sister, her husband. Steel is what they fall in love with.", "title": "Role in Roman life" }, { "paragraph_id": 92, "text": "Eppia—a senator's wife–and her Sergius eloped to Egypt, where he deserted her. Most gladiators would have aimed lower. Two wall graffiti in Pompeii describe Celadus the Thraex as \"the sigh of the girls\" and \"the glory of the girls\"—which may or may not have been Celadus' own wishful thinking.", "title": "Role in Roman life" }, { "paragraph_id": 93, "text": "In the later Imperial era, Servius Maurus Honoratus uses the same disparaging term as Cicero—bustuarius—for gladiators. Tertullian used it somewhat differently—all victims of the arena were sacrificial in his eyes—and expressed the paradox of the arenarii as a class, from a Christian viewpoint:", "title": "Role in Roman life" }, { "paragraph_id": 94, "text": "On the one and the same account they glorify them and they degrade and diminish them; yes, further, they openly condemn them to disgrace and civil degradation; they keep them religiously excluded from council chamber, rostrum, senate, knighthood, and every other kind of office and a good many distinctions. The perversity of it! They love whom they lower; they despise whom they approve; the art they glorify, the artist they disgrace.", "title": "Role in Roman life" }, { "paragraph_id": 95, "text": "In this new Play, I attempted to follow the old custom of mine, of making a fresh trial; I brought it on again. In the first Act I pleased; when in the meantime a rumor spread that gladiators were about to be exhibited; the populace flock together, make a tumult, clamor aloud, and fight for their places: meantime, I was unable to maintain my place.", "title": "Role in Roman life" }, { "paragraph_id": 96, "text": "Images of gladiators were found throughout the Republic and Empire, among all classes. Walls in the 2nd century BC \"Agora of the Italians\" at Delos were decorated with paintings of gladiators. Mosaics dating from the 2nd through 4th centuries AD have been invaluable in the reconstruction of combat and its rules, gladiator types and the development of the munus. Throughout the Roman world, ceramics, lamps, gems and jewellery, mosaics, reliefs, wall paintings and statuary offer evidence, sometimes the best evidence, of the clothing, props, equipment, names, events, prevalence and rules of gladiatorial combat. Earlier periods provide only occasional, perhaps exceptional examples. The Gladiator Mosaic in the Galleria Borghese displays several gladiator types, and the Bignor Roman Villa mosaic from Provincial Britain shows Cupids as gladiators. Souvenir ceramics were produced depicting named gladiators in combat; similar images of higher quality, were available on more expensive articles in high quality ceramic, glass or silver.", "title": "Role in Roman life" }, { "paragraph_id": 97, "text": "Some of the best preserved gladiator graffiti are from Pompeii and Herculaneum, in public areas including Pompeii's Forum and amphitheater, and in the private residences of the upper, middle and lower classes. They clearly show how gladiator munera pervaded Pompeiian culture; they provide information pertaining to particular gladiators, and sometimes include their names, status as slaves or freeborn volunteers, and their match records.", "title": "Role in Roman life" }, { "paragraph_id": 98, "text": "Pliny the Elder gives vivid examples of the popularity of gladiator portraiture in Antium and an artistic treat laid on by an adoptive aristocrat for the solidly plebeian citizens of the Roman Aventine:", "title": "Role in Roman life" }, { "paragraph_id": 99, "text": "When a freedman of Nero was giving a gladiatorial show at Antium, the public porticoes were covered with paintings, so we are told, containing life-like portraits of all the gladiators and assistants. This portraiture of gladiators has been the highest interest in art for many centuries now, but it was Gaius Terentius who began the practice of having pictures made of gladiatorial shows and exhibited in public; in honour of his grandfather who had adopted him he provided thirty pairs of Gladiators in the Forum for three consecutive days, and exhibited a picture of the matches in the Grove of Diana.", "title": "Role in Roman life" }, { "paragraph_id": 100, "text": "Some Roman reenactors attempt to recreate Roman gladiator troupes. Some of these groups are part of larger Roman reenactment groups, and others are wholly independent, though they might participate in larger demonstrations of Roman reenacting or historical reenacting in general. These groups usually focus on portraying mock gladiatorial combat in as accurate a manner as possible.", "title": "Modern reconstructions" } ]
A gladiator was an armed combatant who entertained audiences in the Roman Republic and Roman Empire in violent confrontations with other gladiators, wild animals, and condemned criminals. Some gladiators were volunteers who risked their lives and their legal and social standing by appearing in the arena. Most were despised as slaves, schooled under harsh conditions, socially marginalized, and segregated even in death. Irrespective of their origin, gladiators offered spectators an example of Rome's martial ethics and, in fighting or dying well, they could inspire admiration and popular acclaim. They were celebrated in high and low art, and their value as entertainers was commemorated in precious and commonplace objects throughout the Roman world. The origin of gladiatorial combat is open to debate. There is evidence of it in funeral rites during the Punic Wars of the 3rd century BC, and thereafter it rapidly became an essential feature of politics and social life in the Roman world. Its popularity led to its use in ever more lavish and costly games. The gladiator games lasted for nearly a thousand years, reaching their peak between the 1st century BC and the 2nd century AD. Christians disapproved of the games because they involved idolatrous pagan rituals, and the popularity of gladatorial contests declined in the fifth century, leading to their disappearance.
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https://en.wikipedia.org/wiki/Gladiator
12,338
GMO (disambiguation)
A GMO is a genetically modified organism. GMO may also refer to:
[ { "paragraph_id": 0, "text": "A GMO is a genetically modified organism.", "title": "" }, { "paragraph_id": 1, "text": "GMO may also refer to:", "title": "" } ]
A GMO is a genetically modified organism. GMO may also refer to: Genetically modified food Gell-Mann–Okubo mass formula in particle physics Generalised molecular orbital theory, in chemistry Gulf, Mobile and Ohio Railroad, a U.S. railroad carrier corporation GMO LLC, a Boston-based asset management firm led by Jeremy Grantham GMO Internet, Inc, a Japanese internet services company, and parent of web security company GlobalSign
2023-06-18T02:07:27Z
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https://en.wikipedia.org/wiki/GMO_(disambiguation)
12,339
Genetically modified organism
A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with the most common being an organism altered in a way that "does not occur naturally by mating and/or natural recombination". A wide variety of organisms have been genetically modified (GM), from animals to plants and microorganisms. Genes have been transferred within the same species, across species (creating transgenic organisms), and even across kingdoms. New genes can be introduced, or endogenous genes can be enhanced, altered, or knocked out. Creating a genetically modified organism is a multi-step process. Genetic engineers must isolate the gene they wish to insert into the host organism and combine it with other genetic elements, including a promoter and terminator region and often a selectable marker. A number of techniques are available for inserting the isolated gene into the host genome. Recent advancements using genome editing techniques, notably CRISPR, have made the production of GMOs much simpler. Herbert Boyer and Stanley Cohen made the first genetically modified organism in 1973, a bacterium resistant to the antibiotic kanamycin. The first genetically modified animal, a mouse, was created in 1974 by Rudolf Jaenisch, and the first plant was produced in 1983. In 1994, the Flavr Savr tomato was released, the first commercialized genetically modified food. The first genetically modified animal to be commercialized was the GloFish (2003) and the first genetically modified animal to be approved for food use was the AquAdvantage salmon in 2015. Bacteria are the easiest organisms to engineer and have been used for research, food production, industrial protein purification (including drugs), agriculture, and art. There is potential to use them for environmental purposes or as medicine. Fungi have been engineered with much the same goals. Viruses play an important role as vectors for inserting genetic information into other organisms. This use is especially relevant to human gene therapy. There are proposals to remove the virulent genes from viruses to create vaccines. Plants have been engineered for scientific research, to create new colors in plants, deliver vaccines, and to create enhanced crops. Genetically modified crops are publicly the most controversial GMOs, in spite of having the most human health and environmental benefits. The majority are engineered for herbicide tolerance or insect resistance. Golden rice has been engineered with three genes that increase its nutritional value. Other prospects for GM crops are as bioreactors for the production of biopharmaceuticals, biofuels, or medicines. Animals are generally much harder to transform and the vast majority are still at the research stage. Mammals are the best model organisms for humans, making ones genetically engineered to resemble serious human diseases important to the discovery and development of treatments. Human proteins expressed in mammals are more likely to be similar to their natural counterparts than those expressed in plants or microorganisms. Livestock is modified with the intention of improving economically important traits such as growth rate, quality of meat, milk composition, disease resistance, and survival. Genetically modified fish are used for scientific research, as pets, and as a food source. Genetic engineering has been proposed as a way to control mosquitos, a vector for many deadly diseases. Although human gene therapy is still relatively new, it has been used to treat genetic disorders such as severe combined immunodeficiency and Leber's congenital amaurosis. Many objections have been raised over the development of GMOs, particularly their commercialization. Many of these involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. Other concerns are the objectivity and rigor of regulatory authorities, contamination of non-genetically modified food, control of the food supply, patenting of life, and the use of intellectual property rights. Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, GM food safety is a leading issue with critics. Gene flow, impact on non-target organisms, and escape are the major environmental concerns. Countries have adopted regulatory measures to deal with these concerns. There are differences in the regulation for the release of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Key issues concerning regulators include whether GM food should be labeled and the status of gene-edited organisms. The definition of a genetically modified organism (GMO) is not clear and varies widely between countries, international bodies, and other communities. At its broadest, the definition of a GMO can include anything that has had its genes altered, including by nature. Taking a less broad view, it can encompass every organism that has had its genes altered by humans, which would include all crops and livestock. In 1993, the Encyclopedia Britannica defined genetic engineering as "any of a wide range of techniques ... among them artificial insemination, in vitro fertilization (e.g., 'test-tube' babies), sperm banks, cloning, and gene manipulation." The European Union (EU) included a similarly broad definition in early reviews, specifically mentioning GMOs being produced by "selective breeding and other means of artificial selection" These definitions were promptly adjusted with a number of exceptions added as the result of pressure from scientific and farming communities, as well as developments in science. The EU definition later excluded traditional breeding, in vitro fertilization, induction of polyploidy, mutation breeding, and cell fusion techniques that do not use recombinant nucleic acids or a genetically modified organism in the process. Another approach was the definition provided by the Food and Agriculture Organization, the World Health Organization, and the European Commission, stating that the organisms must be altered in a way that does "not occur naturally by mating and/or natural recombination". Progress in science, such as the discovery of horizontal gene transfer being a relatively common natural phenomenon, further added to the confusion on what "occurs naturally", which led to further adjustments and exceptions. There are examples of crops that fit this definition, but are not normally considered GMOs. For example, the grain crop triticale was fully developed in a laboratory in 1930 using various techniques to alter its genome. Genetically engineered organism (GEO) can be considered a more precise term compared to GMO when describing organisms' genomes that have been directly manipulated with biotechnology. The Cartagena Protocol on Biosafety used the synonym living modified organism (LMO) in 2000 and defined it as "any living organism that possesses a novel combination of genetic material obtained through the use of modern biotechnology." Modern biotechnology is further defined as "In vitro nucleic acid techniques, including recombinant deoxyribonucleic acid (DNA) and direct injection of nucleic acid into cells or organelles, or fusion of cells beyond the taxonomic family." The term GMO originally was not typically used by scientists to describe genetically engineered organisms until after usage of GMO became common in popular media. The United States Department of Agriculture (USDA) considers GMOs to be plants or animals with heritable changes introduced by genetic engineering or traditional methods, while GEO specifically refers to organisms with genes introduced, eliminated, or rearranged using molecular biology, particularly recombinant DNA techniques, such as transgenesis. The definitions focus on the process more than the product, which means there could be GMOS and non-GMOs with very similar genotypes and phenotypes. This has led scientists to label it as a scientifically meaningless category, saying that it is impossible to group all the different types of GMOs under one common definition. It has also caused issues for organic institutions and groups looking to ban GMOs. It also poses problems as new processes are developed. The current definitions came in before genome editing became popular and there is some confusion as to whether they are GMOs. The EU has adjudged that they are changing their GMO definition to include "organisms obtained by mutagenesis", but has excluded them from regulation based on their "long safety record" and that they have been "conventionally been used in a number of applications". In contrast the USDA has ruled that gene edited organisms are not considered GMOs. Even greater inconsistency and confusion is associated with various "Non-GMO" or "GMO-free" labeling schemes in food marketing, where even products such as water or salt, which do not contain any organic substances and genetic material (and thus cannot be genetically modified by definition), are being labeled to create an impression of being "more healthy". Creating a genetically modified organism (GMO) is a multi-step process. Genetic engineers must isolate the gene they wish to insert into the host organism. This gene can be taken from a cell or artificially synthesized. If the chosen gene or the donor organism's genome has been well studied it may already be accessible from a genetic library. The gene is then combined with other genetic elements, including a promoter and terminator region and a selectable marker. A number of techniques are available for inserting the isolated gene into the host genome. Bacteria can be induced to take up foreign DNA, usually by exposed heat shock or electroporation. DNA is generally inserted into animal cells using microinjection, where it can be injected through the cell's nuclear envelope directly into the nucleus, or through the use of viral vectors. In plants the DNA is often inserted using Agrobacterium-mediated recombination, biolistics or electroporation. As only a single cell is transformed with genetic material, the organism must be regenerated from that single cell. In plants this is accomplished through tissue culture. In animals it is necessary to ensure that the inserted DNA is present in the embryonic stem cells. Further testing using PCR, Southern hybridization, and DNA sequencing is conducted to confirm that an organism contains the new gene. Traditionally the new genetic material was inserted randomly within the host genome. Gene targeting techniques, which creates double-stranded breaks and takes advantage on the cells natural homologous recombination repair systems, have been developed to target insertion to exact locations. Genome editing uses artificially engineered nucleases that create breaks at specific points. There are four families of engineered nucleases: meganucleases, zinc finger nucleases, transcription activator-like effector nucleases (TALENs), and the Cas9-guideRNA system (adapted from CRISPR). TALEN and CRISPR are the two most commonly used and each has its own advantages. TALENs have greater target specificity, while CRISPR is easier to design and more efficient. Humans have domesticated plants and animals since around 12,000 BCE, using selective breeding or artificial selection (as contrasted with natural selection). The process of selective breeding, in which organisms with desired traits (and thus with the desired genes) are used to breed the next generation and organisms lacking the trait are not bred, is a precursor to the modern concept of genetic modification. Various advancements in genetics allowed humans to directly alter the DNA and therefore genes of organisms. In 1972, Paul Berg created the first recombinant DNA molecule when he combined DNA from a monkey virus with that of the lambda virus. Herbert Boyer and Stanley Cohen made the first genetically modified organism in 1973. They took a gene from a bacterium that provided resistance to the antibiotic kanamycin, inserted it into a plasmid and then induced other bacteria to incorporate the plasmid. The bacteria that had successfully incorporated the plasmid was then able to survive in the presence of kanamycin. Boyer and Cohen expressed other genes in bacteria. This included genes from the toad Xenopus laevis in 1974, creating the first GMO expressing a gene from an organism of a different kingdom. In 1974, Rudolf Jaenisch created a transgenic mouse by introducing foreign DNA into its embryo, making it the world's first transgenic animal. However it took another eight years before transgenic mice were developed that passed the transgene to their offspring. Genetically modified mice were created in 1984 that carried cloned oncogenes, predisposing them to developing cancer. Mice with genes removed (termed a knockout mouse) were created in 1989. The first transgenic livestock were produced in 1985 and the first animal to synthesize transgenic proteins in their milk were mice in 1987. The mice were engineered to produce human tissue plasminogen activator, a protein involved in breaking down blood clots. In 1983, the first genetically engineered plant was developed by Michael W. Bevan, Richard B. Flavell and Mary-Dell Chilton. They infected tobacco with Agrobacterium transformed with an antibiotic resistance gene and through tissue culture techniques were able to grow a new plant containing the resistance gene. The gene gun was invented in 1987, allowing transformation of plants not susceptible to Agrobacterium infection. In 2000, Vitamin A-enriched golden rice was the first plant developed with increased nutrient value. In 1976, Genentech, the first genetic engineering company was founded by Herbert Boyer and Robert Swanson; a year later, the company produced a human protein (somatostatin) in E. coli. Genentech announced the production of genetically engineered human insulin in 1978. The insulin produced by bacteria, branded Humulin, was approved for release by the Food and Drug Administration in 1982. In 1988, the first human antibodies were produced in plants. In 1987, a strain of Pseudomonas syringae became the first genetically modified organism to be released into the environment when a strawberry and potato field in California were sprayed with it. The first genetically modified crop, an antibiotic-resistant tobacco plant, was produced in 1982. China was the first country to commercialize transgenic plants, introducing a virus-resistant tobacco in 1992. In 1994, Calgene attained approval to commercially release the Flavr Savr tomato, the first genetically modified food. Also in 1994, the European Union approved tobacco engineered to be resistant to the herbicide bromoxynil, making it the first genetically engineered crop commercialized in Europe. An insect resistant Potato was approved for release in the US in 1995, and by 1996 approval had been granted to commercially grow 8 transgenic crops and one flower crop (carnation) in 6 countries plus the EU. In 2010, scientists at the J. Craig Venter Institute announced that they had created the first synthetic bacterial genome. They named it Synthia and it was the world's first synthetic life form. The first genetically modified animal to be commercialized was the GloFish, a Zebra fish with a fluorescent gene added that allows it to glow in the dark under ultraviolet light. It was released to the US market in 2003. In 2015, AquAdvantage salmon became the first genetically modified animal to be approved for food use. Approval is for fish raised in Panama and sold in the US. The salmon were transformed with a growth hormone-regulating gene from a Pacific Chinook salmon and a promoter from an ocean pout enabling it to grow year-round instead of only during spring and summer. Bacteria were the first organisms to be genetically modified in the laboratory, due to the relative ease of modifying their chromosomes. This ease made them important tools for the creation of other GMOs. Genes and other genetic information from a wide range of organisms can be added to a plasmid and inserted into bacteria for storage and modification. Bacteria are cheap, easy to grow, clonal, multiply quickly and can be stored at −80 °C almost indefinitely. Once a gene is isolated it can be stored inside the bacteria, providing an unlimited supply for research. A large number of custom plasmids make manipulating DNA extracted from bacteria relatively easy. Their ease of use has made them great tools for scientists looking to study gene function and evolution. The simplest model organisms come from bacteria, with most of our early understanding of molecular biology coming from studying Escherichia coli. Scientists can easily manipulate and combine genes within the bacteria to create novel or disrupted proteins and observe the effect this has on various molecular systems. Researchers have combined the genes from bacteria and archaea, leading to insights on how these two diverged in the past. In the field of synthetic biology, they have been used to test various synthetic approaches, from synthesizing genomes to creating novel nucleotides. Bacteria have been used in the production of food for a long time, and specific strains have been developed and selected for that work on an industrial scale. They can be used to produce enzymes, amino acids, flavorings, and other compounds used in food production. With the advent of genetic engineering, new genetic changes can easily be introduced into these bacteria. Most food-producing bacteria are lactic acid bacteria, and this is where the majority of research into genetically engineering food-producing bacteria has gone. The bacteria can be modified to operate more efficiently, reduce toxic byproduct production, increase output, create improved compounds, and remove unnecessary pathways. Food products from genetically modified bacteria include alpha-amylase, which converts starch to simple sugars, chymosin, which clots milk protein for cheese making, and pectinesterase, which improves fruit juice clarity. The majority are produced in the US and even though regulations are in place to allow production in Europe, as of 2015 no food products derived from bacteria are currently available there. Genetically modified bacteria are used to produce large amounts of proteins for industrial use. Generally the bacteria are grown to a large volume before the gene encoding the protein is activated. The bacteria are then harvested and the desired protein purified from them. The high cost of extraction and purification has meant that only high value products have been produced at an industrial scale. The majority of these products are human proteins for use in medicine. Many of these proteins are impossible or difficult to obtain via natural methods and they are less likely to be contaminated with pathogens, making them safer. The first medicinal use of GM bacteria was to produce the protein insulin to treat diabetes. Other medicines produced include clotting factors to treat hemophilia, human growth hormone to treat various forms of dwarfism, interferon to treat some cancers, erythropoietin for anemic patients, and tissue plasminogen activator which dissolves blood clots. Outside of medicine they have been used to produce biofuels. There is interest in developing an extracellular expression system within the bacteria to reduce costs and make the production of more products economical. With a greater understanding of the role that the microbiome plays in human health, there is a potential to treat diseases by genetically altering the bacteria to, themselves, be therapeutic agents. Ideas include altering gut bacteria so they destroy harmful bacteria, or using bacteria to replace or increase deficient enzymes or proteins. One research focus is to modify Lactobacillus, bacteria that naturally provide some protection against HIV, with genes that will further enhance this protection. If the bacteria do not form colonies inside the patient, the person must repeatedly ingest the modified bacteria in order to get the required doses. Enabling the bacteria to form a colony could provide a more long-term solution, but could also raise safety concerns as interactions between bacteria and the human body are less well understood than with traditional drugs. There are concerns that horizontal gene transfer to other bacteria could have unknown effects. As of 2018 there are clinical trials underway testing the efficacy and safety of these treatments. For over a century bacteria have been used in agriculture. Crops have been inoculated with Rhizobia (and more recently Azospirillum) to increase their production or to allow them to be grown outside their original habitat. Application of Bacillus thuringiensis (Bt) and other bacteria can help protect crops from insect infestation and plant diseases. With advances in genetic engineering, these bacteria have been manipulated for increased efficiency and expanded host range. Markers have also been added to aid in tracing the spread of the bacteria. The bacteria that naturally colonize certain crops have also been modified, in some cases to express the Bt genes responsible for pest resistance. Pseudomonas strains of bacteria cause frost damage by nucleating water into ice crystals around themselves. This led to the development of ice-minus bacteria, which have the ice-forming genes removed. When applied to crops they can compete with the non-modified bacteria and confer some frost resistance. Other uses for genetically modified bacteria include bioremediation, where the bacteria are used to convert pollutants into a less toxic form. Genetic engineering can increase the levels of the enzymes used to degrade a toxin or to make the bacteria more stable under environmental conditions. Bioart has also been created using genetically modified bacteria. In the 1980s artist Jon Davis and geneticist Dana Boyd converted the Germanic symbol for femininity (ᛉ) into binary code and then into a DNA sequence, which was then expressed in Escherichia coli. This was taken a step further in 2012, when a whole book was encoded onto DNA. Paintings have also been produced using bacteria transformed with fluorescent proteins. Viruses are often modified so they can be used as vectors for inserting genetic information into other organisms. This process is called transduction and if successful the recipient of the introduced DNA becomes a GMO. Different viruses have different efficiencies and capabilities. Researchers can use this to control for various factors; including the target location, insert size, and duration of gene expression. Any dangerous sequences inherent in the virus must be removed, while those that allow the gene to be delivered effectively are retained. While viral vectors can be used to insert DNA into almost any organism it is especially relevant for its potential in treating human disease. Although primarily still at trial stages, there has been some successes using gene therapy to replace defective genes. This is most evident in curing patients with severe combined immunodeficiency rising from adenosine deaminase deficiency (ADA-SCID), although the development of leukemia in some ADA-SCID patients along with the death of Jesse Gelsinger in a 1999 trial set back the development of this approach for many years. In 2009, another breakthrough was achieved when an eight-year-old boy with Leber's congenital amaurosis regained normal eyesight and in 2016 GlaxoSmithKline gained approval to commercialize a gene therapy treatment for ADA-SCID. As of 2018, there are a substantial number of clinical trials underway, including treatments for hemophilia, glioblastoma, chronic granulomatous disease, cystic fibrosis and various cancers. The most common virus used for gene delivery comes from adenoviruses as they can carry up to 7.5 kb of foreign DNA and infect a relatively broad range of host cells, although they have been known to elicit immune responses in the host and only provide short term expression. Other common vectors are adeno-associated viruses, which have lower toxicity and longer-term expression, but can only carry about 4kb of DNA. Herpes simplex viruses make promising vectors, having a carrying capacity of over 30kb and providing long term expression, although they are less efficient at gene delivery than other vectors. The best vectors for long term integration of the gene into the host genome are retroviruses, but their propensity for random integration is problematic. Lentiviruses are a part of the same family as retroviruses with the advantage of infecting both dividing and non-dividing cells, whereas retroviruses only target dividing cells. Other viruses that have been used as vectors include alphaviruses, flaviviruses, measles viruses, rhabdoviruses, Newcastle disease virus, poxviruses, and picornaviruses. Most vaccines consist of viruses that have been attenuated, disabled, weakened or killed in some way so that their virulent properties are no longer effective. Genetic engineering could theoretically be used to create viruses with the virulent genes removed. This does not affect the viruses infectivity, invokes a natural immune response and there is no chance that they will regain their virulence function, which can occur with some other vaccines. As such they are generally considered safer and more efficient than conventional vaccines, although concerns remain over non-target infection, potential side effects and horizontal gene transfer to other viruses. Another potential approach is to use vectors to create novel vaccines for diseases that have no vaccines available or the vaccines that do not work effectively, such as AIDS, malaria, and tuberculosis. The most effective vaccine against Tuberculosis, the Bacillus Calmette–Guérin (BCG) vaccine, only provides partial protection. A modified vaccine expressing a M tuberculosis antigen is able to enhance BCG protection. It has been shown to be safe to use at phase II trials, although not as effective as initially hoped. Other vector-based vaccines have already been approved and many more are being developed. Another potential use of genetically modified viruses is to alter them so they can directly treat diseases. This can be through expression of protective proteins or by directly targeting infected cells. In 2004, researchers reported that a genetically modified virus that exploits the selfish behavior of cancer cells might offer an alternative way of killing tumours. Since then, several researchers have developed genetically modified oncolytic viruses that show promise as treatments for various types of cancer. In 2017, researchers genetically modified a virus to express spinach defensin proteins. The virus was injected into orange trees to combat citrus greening disease that had reduced orange production by 70% since 2005. Natural viral diseases, such as myxomatosis and rabbit hemorrhagic disease, have been used to help control pest populations. Over time the surviving pests become resistant, leading researchers to look at alternative methods. Genetically modified viruses that make the target animals infertile through immunocontraception have been created in the laboratory as well as others that target the developmental stage of the animal. There are concerns with using this approach regarding virus containment and cross species infection. Sometimes the same virus can be modified for contrasting purposes. Genetic modification of the myxoma virus has been proposed to conserve European wild rabbits in the Iberian peninsula and to help regulate them in Australia. To protect the Iberian species from viral diseases, the myxoma virus was genetically modified to immunize the rabbits, while in Australia the same myxoma virus was genetically modified to lower fertility in the Australian rabbit population. Outside of biology scientists have used a genetically modified virus to construct a lithium-ion battery and other nanostructured materials. It is possible to engineer bacteriophages to express modified proteins on their surface and join them up in specific patterns (a technique called phage display). These structures have potential uses for energy storage and generation, biosensing and tissue regeneration with some new materials currently produced including quantum dots, liquid crystals, nanorings and nanofibres. The battery was made by engineering M13 bacteriaophages so they would coat themselves in iron phosphate and then assemble themselves along a carbon nanotube. This created a highly conductive medium for use in a cathode, allowing energy to be transferred quickly. They could be constructed at lower temperatures with non-toxic chemicals, making them more environmentally friendly. Fungi can be used for many of the same processes as bacteria. For industrial applications, yeasts combine the bacterial advantages of being a single-celled organism that is easy to manipulate and grow with the advanced protein modifications found in eukaryotes. They can be used to produce large complex molecules for use in food, pharmaceuticals, hormones, and steroids. Yeast is important for wine production and as of 2016 two genetically modified yeasts involved in the fermentation of wine have been commercialized in the United States and Canada. One has increased malolactic fermentation efficiency, while the other prevents the production of dangerous ethyl carbamate compounds during fermentation. There have also been advances in the production of biofuel from genetically modified fungi. Fungi, being the most common pathogens of insects, make attractive biopesticides. Unlike bacteria and viruses they have the advantage of infecting the insects by contact alone, although they are out competed in efficiency by chemical pesticides. Genetic engineering can improve virulence, usually by adding more virulent proteins, increasing infection rate or enhancing spore persistence. Many of the disease carrying vectors are susceptible to entomopathogenic fungi. An attractive target for biological control are mosquitos, vectors for a range of deadly diseases, including malaria, yellow fever and dengue fever. Mosquitos can evolve quickly so it becomes a balancing act of killing them before the Plasmodium they carry becomes the infectious disease, but not so fast that they become resistant to the fungi. By genetically engineering fungi like Metarhizium anisopliae and Beauveria bassiana to delay the development of mosquito infectiousness the selection pressure to evolve resistance is reduced. Another strategy is to add proteins to the fungi that block transmission of malaria or remove the Plasmodium altogether. Agaricus bisporus the common white button mushroom, has been gene edited to resist browning, giving it a longer shelf life. The process used CRISPR to knock out a gene that encodes polyphenol oxidase. As it didn't introduce any foreign DNA into the organism it was not deemed to be regulated under existing GMO frameworks and as such is the first CRISPR-edited organism to be approved for release. This has intensified debates as to whether gene-edited organisms should be considered genetically modified organisms and how they should be regulated. Plants have been engineered for scientific research, to display new flower colors, deliver vaccines, and to create enhanced crops. Many plants are pluripotent, meaning that a single cell from a mature plant can be harvested and under the right conditions can develop into a new plant. This ability can be taken advantage of by genetic engineers; by selecting for cells that have been successfully transformed in an adult plant a new plant can then be grown that contains the transgene in every cell through a process known as tissue culture. Much of the advances in the field of genetic engineering has come from experimentation with tobacco. Major advances in tissue culture and plant cellular mechanisms for a wide range of plants has originated from systems developed in tobacco. It was the first plant to be altered using genetic engineering and is considered a model organism for not only genetic engineering, but a range of other fields. As such the transgenic tools and procedures are well established making tobacco one of the easiest plants to transform. Another major model organism relevant to genetic engineering is Arabidopsis thaliana. Its small genome and short life cycle makes it easy to manipulate and it contains many homologs to important crop species. It was the first plant sequenced, has a host of online resources available and can be transformed by simply dipping a flower in a transformed Agrobacterium solution. In research, plants are engineered to help discover the functions of certain genes. The simplest way to do this is to remove the gene and see what phenotype develops compared to the wild type form. Any differences are possibly the result of the missing gene. Unlike mutagenisis, genetic engineering allows targeted removal without disrupting other genes in the organism. Some genes are only expressed in certain tissues, so reporter genes, like GUS, can be attached to the gene of interest allowing visualization of the location. Other ways to test a gene is to alter it slightly and then return it to the plant and see if it still has the same effect on phenotype. Other strategies include attaching the gene to a strong promoter and see what happens when it is overexpressed, forcing a gene to be expressed in a different location or at different developmental stages. Some genetically modified plants are purely ornamental. They are modified for flower color, fragrance, flower shape and plant architecture. The first genetically modified ornamentals commercialized altered color. Carnations were released in 1997, with the most popular genetically modified organism, a blue rose (actually lavender or mauve) created in 2004. The roses are sold in Japan, the United States, and Canada. Other genetically modified ornamentals include Chrysanthemum and Petunia. As well as increasing aesthetic value there are plans to develop ornamentals that use less water or are resistant to the cold, which would allow them to be grown outside their natural environments. It has been proposed to genetically modify some plant species threatened by extinction to be resistant to invasive plants and diseases, such as the emerald ash borer in North American and the fungal disease, Ceratocystis platani, in European plane trees. The papaya ringspot virus devastated papaya trees in Hawaii in the twentieth century until transgenic papaya plants were given pathogen-derived resistance. However, genetic modification for conservation in plants remains mainly speculative. A unique concern is that a transgenic species may no longer bear enough resemblance to the original species to truly claim that the original species is being conserved. Instead, the transgenic species may be genetically different enough to be considered a new species, thus diminishing the conservation worth of genetic modification. Genetically modified crops are genetically modified plants that are used in agriculture. The first crops developed were used for animal or human food and provide resistance to certain pests, diseases, environmental conditions, spoilage or chemical treatments (e.g. resistance to a herbicide). The second generation of crops aimed to improve the quality, often by altering the nutrient profile. Third generation genetically modified crops could be used for non-food purposes, including the production of pharmaceutical agents, biofuels, and other industrially useful goods, as well as for bioremediation. There are three main aims to agricultural advancement; increased production, improved conditions for agricultural workers and sustainability. GM crops contribute by improving harvests through reducing insect pressure, increasing nutrient value and tolerating different abiotic stresses. Despite this potential, as of 2018, the commercialized crops are limited mostly to cash crops like cotton, soybean, maize and canola and the vast majority of the introduced traits provide either herbicide tolerance or insect resistance. Soybeans accounted for half of all genetically modified crops planted in 2014. Adoption by farmers has been rapid, between 1996 and 2013, the total surface area of land cultivated with GM crops increased by a factor of 100. Geographically though the spread has been uneven, with strong growth in the Americas and parts of Asia and little in Europe and Africa. Its socioeconomic spread has been more even, with approximately 54% of worldwide GM crops grown in developing countries in 2013. Although doubts have been raised, most studies have found growing GM crops to be beneficial to farmers through decreased pesticide use as well as increased crop yield and farm profit. The majority of GM crops have been modified to be resistant to selected herbicides, usually a glyphosate or glufosinate based one. Genetically modified crops engineered to resist herbicides are now more available than conventionally bred resistant varieties; in the USA 93% of soybeans and most of the GM maize grown is glyphosate tolerant. Most currently available genes used to engineer insect resistance come from the Bacillus thuringiensis bacterium and code for delta endotoxins. A few use the genes that encode for vegetative insecticidal proteins. The only gene commercially used to provide insect protection that does not originate from B. thuringiensis is the Cowpea trypsin inhibitor (CpTI). CpTI was first approved for use cotton in 1999 and is currently undergoing trials in rice. Less than one percent of GM crops contained other traits, which include providing virus resistance, delaying senescence and altering the plants composition. Golden rice is the most well known GM crop that is aimed at increasing nutrient value. It has been engineered with three genes that biosynthesise beta-carotene, a precursor of vitamin A, in the edible parts of rice. It is intended to produce a fortified food to be grown and consumed in areas with a shortage of dietary vitamin A, a deficiency which each year is estimated to kill 670,000 children under the age of 5 and cause an additional 500,000 cases of irreversible childhood blindness. The original golden rice produced 1.6μg/g of the carotenoids, with further development increasing this 23 times. It gained its first approvals for use as food in 2018. Plants and plant cells have been genetically engineered for production of biopharmaceuticals in bioreactors, a process known as pharming. Work has been done with duckweed Lemna minor, the algae Chlamydomonas reinhardtii and the moss Physcomitrella patens. Biopharmaceuticals produced include cytokines, hormones, antibodies, enzymes and vaccines, most of which are accumulated in the plant seeds. Many drugs also contain natural plant ingredients and the pathways that lead to their production have been genetically altered or transferred to other plant species to produce greater volume. Other options for bioreactors are biopolymers and biofuels. Unlike bacteria, plants can modify the proteins post-translationally, allowing them to make more complex molecules. They also pose less risk of being contaminated. Therapeutics have been cultured in transgenic carrot and tobacco cells, including a drug treatment for Gaucher's disease. Vaccine production and storage has great potential in transgenic plants. Vaccines are expensive to produce, transport, and administer, so having a system that could produce them locally would allow greater access to poorer and developing areas. As well as purifying vaccines expressed in plants it is also possible to produce edible vaccines in plants. Edible vaccines stimulate the immune system when ingested to protect against certain diseases. Being stored in plants reduces the long-term cost as they can be disseminated without the need for cold storage, don't need to be purified, and have long term stability. Also being housed within plant cells provides some protection from the gut acids upon digestion. However the cost of developing, regulating, and containing transgenic plants is high, leading to most current plant-based vaccine development being applied to veterinary medicine, where the controls are not as strict. Genetically modified crops have been proposed as one of the ways to reduce farming-related CO2 emissions due to higher yield, reduced use of pesticides, reduced use of tractor fuel and no tillage. According to a 2021 study, in EU alone widespread adoption of GE crops would reduce greenhouse gas emissions by 33 million tons of CO2 equivalent or 7.5% of total farming-related emissions. The vast majority of genetically modified animals are at the research stage with the number close to entering the market remaining small. As of 2018 only three genetically modified animals have been approved, all in the USA. A goat and a chicken have been engineered to produce medicines and a salmon has increased its own growth. Despite the differences and difficulties in modifying them, the end aims are much the same as for plants. GM animals are created for research purposes, production of industrial or therapeutic products, agricultural uses, or improving their health. There is also a market for creating genetically modified pets. The process of genetically engineering mammals is slow, tedious, and expensive. However, new technologies are making genetic modifications easier and more precise. The first transgenic mammals were produced by injecting viral DNA into embryos and then implanting the embryos in females. The embryo would develop and it would be hoped that some of the genetic material would be incorporated into the reproductive cells. Then researchers would have to wait until the animal reached breeding age and then offspring would be screened for the presence of the gene in every cell. The development of the CRISPR-Cas9 gene editing system as a cheap and fast way of directly modifying germ cells, effectively halving the amount of time needed to develop genetically modified mammals. Mammals are the best models for human disease, making genetic engineered ones vital to the discovery and development of cures and treatments for many serious diseases. Knocking out genes responsible for human genetic disorders allows researchers to study the mechanism of the disease and to test possible cures. Genetically modified mice have been the most common mammals used in biomedical research, as they are cheap and easy to manipulate. Pigs are also a good target as they have a similar body size and anatomical features, physiology, pathophysiological response and diet. Nonhuman primates are the most similar model organisms to humans, but there is less public acceptance towards using them as research animals. In 2009, scientists announced that they had successfully transferred a gene into a primate species (marmosets) for the first time. Their first research target for these marmosets was Parkinson's disease, but they were also considering amyotrophic lateral sclerosis and Huntington's disease. Human proteins expressed in mammals are more likely to be similar to their natural counterparts than those expressed in plants or microorganisms. Stable expression has been accomplished in sheep, pigs, rats and other animals. In 2009, the first human biological drug produced from such an animal, a goat, was approved. The drug, ATryn, is an anticoagulant which reduces the probability of blood clots during surgery or childbirth and is extracted from the goat's milk. Human alpha-1-antitrypsin is another protein that has been produced from goats and is used in treating humans with this deficiency. Another medicinal area is in creating pigs with greater capacity for human organ transplants (xenotransplantation). Pigs have been genetically modified so that their organs can no longer carry retroviruses or have modifications to reduce the chance of rejection. Pig lungs from genetically modified pigs are being considered for transplantation into humans. There is even potential to create chimeric pigs that can carry human organs. Livestock are modified with the intention of improving economically important traits such as growth-rate, quality of meat, milk composition, disease resistance and survival. Animals have been engineered to grow faster, be healthier and resist diseases. Modifications have also improved the wool production of sheep and udder health of cows. Goats have been genetically engineered to produce milk with strong spiderweb-like silk proteins in their milk. A GM pig called Enviropig was created with the capability of digesting plant phosphorus more efficiently than conventional pigs. They could reduce water pollution since they excrete 30 to 70% less phosphorus in manure. Dairy cows have been genetically engineered to produce milk that would be the same as human breast milk. This could potentially benefit mothers who cannot produce breast milk but want their children to have breast milk rather than formula. Researchers have also developed a genetically engineered cow that produces allergy-free milk. Scientists have genetically engineered several organisms, including some mammals, to include green fluorescent protein (GFP), for research purposes. GFP and other similar reporting genes allow easy visualization and localization of the products of the genetic modification. Fluorescent pigs have been bred to study human organ transplants, regenerating ocular photoreceptor cells, and other topics. In 2011, green-fluorescent cats were created to help find therapies for HIV/AIDS and other diseases as feline immunodeficiency virus is related to HIV. There have been suggestions that genetic engineering could be used to bring animals back from extinction. It involves changing the genome of a close living relative to resemble the extinct one and is currently being attempted with the passenger pigeon. Genes associated with the woolly mammoth have been added to the genome of an African Elephant, although the lead researcher says he has no intention of creating live elephants and transferring all the genes and reversing years of genetic evolution is a long way from being feasible. It is more likely that scientists could use this technology to conserve endangered animals by bringing back lost diversity or transferring evolved genetic advantages from adapted organisms to those that are struggling. Gene therapy uses genetically modified viruses to deliver genes which can cure disease in humans. Although gene therapy is still relatively new, it has had some successes. It has been used to treat genetic disorders such as severe combined immunodeficiency, and Leber's congenital amaurosis. Treatments are also being developed for a range of other currently incurable diseases, such as cystic fibrosis, sickle cell anemia, Parkinson's disease, cancer, diabetes, heart disease and muscular dystrophy. These treatments only effect somatic cells, meaning any changes would not be inheritable. Germline gene therapy results in any change being inheritable, which has raised concerns within the scientific community. In 2015, CRISPR was used to edit the DNA of non-viable human embryos. In November 2018, He Jiankui announced that he had edited the genomes of two human embryos, in an attempt to disable the CCR5 gene, which codes for a receptor that HIV uses to enter cells. He said that twin girls, Lulu and Nana, had been born a few weeks earlier and that they carried functional copies of CCR5 along with disabled CCR5 (mosaicism) and were still vulnerable to HIV. The work was widely condemned as unethical, dangerous, and premature. Genetically modified fish are used for scientific research, as pets and as a food source. Aquaculture is a growing industry, currently providing over half the consumed fish worldwide. Through genetic engineering it is possible to increase growth rates, reduce food intake, remove allergenic properties, increase cold tolerance and provide disease resistance. Fish can also be used to detect aquatic pollution or function as bioreactors. Several groups have been developing zebrafish to detect pollution by attaching fluorescent proteins to genes activated by the presence of pollutants. The fish will then glow and can be used as environmental sensors. The GloFish is a brand of genetically modified fluorescent zebrafish with bright red, green, and orange fluorescent color. It was originally developed by one of the groups to detect pollution, but is now part of the ornamental fish trade, becoming the first genetically modified animal to become publicly available as a pet when in 2003 it was introduced for sale in the USA. GM fish are widely used in basic research in genetics and development. Two species of fish, zebrafish and medaka, are most commonly modified because they have optically clear chorions (membranes in the egg), rapidly develop, and the one-cell embryo is easy to see and microinject with transgenic DNA. Zebrafish are model organisms for developmental processes, regeneration, genetics, behavior, disease mechanisms and toxicity testing. Their transparency allows researchers to observe developmental stages, intestinal functions and tumour growth. The generation of transgenic protocols (whole organism, cell or tissue specific, tagged with reporter genes) has increased the level of information gained by studying these fish. GM fish have been developed with promoters driving an over-production of growth hormone for use in the aquaculture industry to increase the speed of development and potentially reduce fishing pressure on wild stocks. This has resulted in dramatic growth enhancement in several species, including salmon, trout and tilapia. AquaBounty Technologies, a biotechnology company, have produced a salmon (called AquAdvantage salmon) that can mature in half the time as wild salmon. It obtained regulatory approval in 2015, the first non-plant GMO food to be commercialized. As of August 2017, GMO salmon is being sold in Canada. Sales in the US started in May 2021. In biological research, transgenic fruit flies (Drosophila melanogaster) are model organisms used to study the effects of genetic changes on development. Fruit flies are often preferred over other animals due to their short life cycle and low maintenance requirements. They also have a relatively simple genome compared to many vertebrates, with typically only one copy of each gene, making phenotypic analysis easy. Drosophila have been used to study genetics and inheritance, embryonic development, learning, behavior, and aging. The discovery of transposons, in particular the p-element, in Drosophila provided an early method to add transgenes to their genome, although this has been taken over by more modern gene-editing techniques. Due to their significance to human health, scientists are looking at ways to control mosquitoes through genetic engineering. Malaria-resistant mosquitoes have been developed in the laboratory by inserting a gene that reduces the development of the malaria parasite and then use homing endonucleases to rapidly spread that gene throughout the male population (known as a gene drive). This approach has been taken further by using the gene drive to spread a lethal gene. In trials the populations of Aedes aegypti mosquitoes, the single most important carrier of dengue fever and Zika virus, were reduced by between 80% and by 90%. Another approach is to use a sterile insect technique, whereby males genetically engineered to be sterile out compete viable males, to reduce population numbers. Other insect pests that make attractive targets are moths. Diamondback moths cause US$4 to $5 billion of damage each year worldwide. The approach is similar to the sterile technique tested on mosquitoes, where males are transformed with a gene that prevents any females born from reaching maturity. They underwent field trials in 2017. Genetically modified moths have previously been released in field trials. In this case a strain of pink bollworm that were sterilized with radiation were genetically engineered to express a red fluorescent protein making it easier for researchers to monitor them. Silkworm, the larvae stage of Bombyx mori, is an economically important insect in sericulture. Scientists are developing strategies to enhance silk quality and quantity. There is also potential to use the silk producing machinery to make other valuable proteins. Proteins currently developed to be expressed by silkworms include; human serum albumin, human collagen α-chain, mouse monoclonal antibody and N-glycanase. Silkworms have been created that produce spider silk, a stronger but extremely difficult to harvest silk, and even novel silks. Systems have been developed to create transgenic organisms in a wide variety of other animals. Chickens have been genetically modified for a variety of purposes. This includes studying embryo development, preventing the transmission of bird flu and providing evolutionary insights using reverse engineering to recreate dinosaur-like phenotypes. A GM chicken that produces the drug Kanuma, an enzyme that treats a rare condition, in its egg passed US regulatory approval in 2015. Genetically modified frogs, in particular Xenopus laevis and Xenopus tropicalis, are used in developmental biology research. GM frogs can also be used as pollution sensors, especially for endocrine disrupting chemicals. There are proposals to use genetic engineering to control cane toads in Australia. The nematode Caenorhabditis elegans is one of the major model organisms for researching molecular biology. RNA interference (RNAi) was discovered in C. elegans and could be induced by simply feeding them bacteria modified to express double stranded RNA. It is also relatively easy to produce stable transgenic nematodes and this along with RNAi are the major tools used in studying their genes. The most common use of transgenic nematodes has been studying gene expression and localization by attaching reporter genes. Transgenes can also be combined with RNAi techniques to rescue phenotypes, study gene function, image cell development in real time or control expression for different tissues or developmental stages. Transgenic nematodes have been used to study viruses, toxicology, diseases, and to detect environmental pollutants. The gene responsible for albinism in sea cucumbers has been found and used to engineer white sea cucumbers, a rare delicacy. The technology also opens the way to investigate the genes responsible for some of the cucumbers more unusual traits, including hibernating in summer, eviscerating their intestines, and dissolving their bodies upon death. Flatworms have the ability to regenerate themselves from a single cell. Until 2017 there was no effective way to transform them, which hampered research. By using microinjection and radiation scientists have now created the first genetically modified flatworms. The bristle worm, a marine annelid, has been modified. It is of interest due to its reproductive cycle being synchronized with lunar phases, regeneration capacity and slow evolution rate. Cnidaria such as Hydra and the sea anemone Nematostella vectensis are attractive model organisms to study the evolution of immunity and certain developmental processes. Other animals that have been genetically modified include snails, geckos, turtles, crayfish, oysters, shrimp, clams, abalone and sponges. Genetically modified organisms are regulated by government agencies. This applies to research as well as the release of genetically modified organisms, including crops and food. The development of a regulatory framework concerning genetic engineering began in 1975, at Asilomar, California. The Asilomar meeting recommended a set of guidelines regarding the cautious use of recombinant technology and any products resulting from that technology. The Cartagena Protocol on Biosafety was adopted on 29 January 2000 and entered into force on 11 September 2003. It is an international treaty that governs the transfer, handling, and use of genetically modified organisms. One hundred and fifty-seven countries are members of the Protocol and many use it as a reference point for their own regulations. Universities and research institutes generally have a special committee that is responsible for approving any experiments that involve genetic engineering. Many experiments also need permission from a national regulatory group or legislation. All staff must be trained in the use of GMOs and all laboratories must gain approval from their regulatory agency to work with GMOs. The legislation covering GMOs are often derived from regulations and guidelines in place for the non-GMO version of the organism, although they are more severe. There is a near-universal system for assessing the relative risks associated with GMOs and other agents to laboratory staff and the community. They are assigned to one of four risk categories based on their virulence, the severity of the disease, the mode of transmission, and the availability of preventive measures or treatments. There are four biosafety levels that a laboratory can fall into, ranging from level 1 (which is suitable for working with agents not associated with disease) to level 4 (working with life-threatening agents). Different countries use different nomenclature to describe the levels and can have different requirements for what can be done at each level. There are differences in the regulation for the release of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Regulation varies in a given country depending on the intended use of the products of the genetic engineering. For example, a crop not intended for food use is generally not reviewed by authorities responsible for food safety. Some nations have banned the release of GMOs or restricted their use, and others permit them with widely differing degrees of regulation. In 2016, thirty eight countries officially ban or prohibit the cultivation of GMOs and nine (Algeria, Bhutan, Kenya, Kyrgyzstan, Madagascar, Peru, Russia, Venezuela and Zimbabwe) ban their importation. Most countries that do not allow GMO cultivation do permit research using GMOs. Despite regulation, illegal releases have sometimes occurred, due to weakness of enforcement. The European Union (EU) differentiates between approval for cultivation within the EU and approval for import and processing. While only a few GMOs have been approved for cultivation in the EU a number of GMOs have been approved for import and processing. The cultivation of GMOs has triggered a debate about the market for GMOs in Europe. Depending on the coexistence regulations, incentives for cultivation of GM crops differ. The US policy does not focus on the process as much as other countries, looks at verifiable scientific risks and uses the concept of substantial equivalence. Whether gene edited organisms should be regulated the same as genetically modified organism is debated. USA regulations sees them as separate and does not regulate them under the same conditions, while in Europe a GMO is any organism created using genetic engineering techniques. One of the key issues concerning regulators is whether GM products should be labeled. The European Commission says that mandatory labeling and traceability are needed to allow for informed choice, avoid potential false advertising and facilitate the withdrawal of products if adverse effects on health or the environment are discovered. The American Medical Association and the American Association for the Advancement of Science say that absent scientific evidence of harm even voluntary labeling is misleading and will falsely alarm consumers. Labeling of GMO products in the marketplace is required in 64 countries. Labeling can be mandatory up to a threshold GM content level (which varies between countries) or voluntary. In Canada and the US labeling of GM food is voluntary, while in Europe all food (including processed food) or feed which contains greater than 0.9% of approved GMOs must be labeled. In 2014, sales of products that had been labeled as non-GMO grew 30 percent to $1.1 billion. There is controversy over GMOs, especially with regard to their release outside laboratory environments. The dispute involves consumers, producers, biotechnology companies, governmental regulators, non-governmental organizations, and scientists. Many of these concerns involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. These controversies have led to litigation, international trade disputes, and protests, and to restrictive regulation of commercial products in some countries. Most concerns are around the health and environmental effects of GMOs. These include whether they may provoke an allergic reaction, whether the transgenes could transfer to human cells, and whether genes not approved for human consumption could outcross into the food supply. There is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are much less likely than scientists to perceive GM foods as safe. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation. As late as the 1990s gene flow into wild populations was thought to be unlikely and rare, and if it were to occur, easily eradicated. It was thought that this would add no additional environmental costs or risks – no effects were expected other than those already caused by pesticide applications. However, in the decades since, several such examples have been observed. Gene flow between GM crops and compatible plants, along with increased use of broad-spectrum herbicides, can increase the risk of herbicide resistant weed populations. Debate over the extent and consequences of gene flow intensified in 2001 when a paper was published showing transgenes had been found in landrace maize in Mexico, the crop's center of diversity. Gene flow from GM crops to other organisms has been found to generally be lower than what would occur naturally. In order to address some of these concerns some GMOs have been developed with traits to help control their spread. To prevent the genetically modified salmon inadvertently breeding with wild salmon, all the fish raised for food are females, triploid, 99% are reproductively sterile, and raised in areas where escaped salmon could not survive. Bacteria have also been modified to depend on nutrients that cannot be found in nature, and genetic use restriction technology has been developed, though not yet marketed, that causes the second generation of GM plants to be sterile. Other environmental and agronomic concerns include a decrease in biodiversity, an increase in secondary pests (non-targeted pests) and evolution of resistant insect pests. In the areas of China and the US with Bt crops the overall biodiversity of insects has increased and the impact of secondary pests has been minimal. Resistance was found to be slow to evolve when best practice strategies were followed. The impact of Bt crops on beneficial non-target organisms became a public issue after a 1999 paper suggested they could be toxic to monarch butterflies. Follow up studies have since shown that the toxicity levels encountered in the field were not high enough to harm the larvae. Accusations that scientists are "playing God" and other religious issues have been ascribed to the technology from the beginning. With the ability to genetically engineer humans now possible there are ethical concerns over how far this technology should go, or if it should be used at all. Much debate revolves around where the line between treatment and enhancement is and whether the modifications should be inheritable. Other concerns include contamination of the non-genetically modified food supply, the rigor of the regulatory process, consolidation of control of the food supply in companies that make and sell GMOs, exaggeration of the benefits of genetic modification, or concerns over the use of herbicides with glyphosate. Other issues raised include the patenting of life and the use of intellectual property rights. There are large differences in consumer acceptance of GMOs, with Europeans more likely to view GM food negatively than North Americans. GMOs arrived on the scene as the public confidence in food safety, attributed to recent food scares such as Bovine spongiform encephalopathy and other scandals involving government regulation of products in Europe, was low. This along with campaigns run by various non-governmental organizations (NGO) have been very successful in blocking or limiting the use of GM crops. NGOs like the Organic Consumers Association, the Union of Concerned Scientists, Greenpeace and other groups have said that risks have not been adequately identified and managed and that there are unanswered questions regarding the potential long-term impact on human health from food derived from GMOs. They propose mandatory labeling or a moratorium on such products.
[ { "paragraph_id": 0, "text": "A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with the most common being an organism altered in a way that \"does not occur naturally by mating and/or natural recombination\". A wide variety of organisms have been genetically modified (GM), from animals to plants and microorganisms. Genes have been transferred within the same species, across species (creating transgenic organisms), and even across kingdoms. New genes can be introduced, or endogenous genes can be enhanced, altered, or knocked out.", "title": "" }, { "paragraph_id": 1, "text": "Creating a genetically modified organism is a multi-step process. Genetic engineers must isolate the gene they wish to insert into the host organism and combine it with other genetic elements, including a promoter and terminator region and often a selectable marker. A number of techniques are available for inserting the isolated gene into the host genome. Recent advancements using genome editing techniques, notably CRISPR, have made the production of GMOs much simpler. Herbert Boyer and Stanley Cohen made the first genetically modified organism in 1973, a bacterium resistant to the antibiotic kanamycin. The first genetically modified animal, a mouse, was created in 1974 by Rudolf Jaenisch, and the first plant was produced in 1983. In 1994, the Flavr Savr tomato was released, the first commercialized genetically modified food. The first genetically modified animal to be commercialized was the GloFish (2003) and the first genetically modified animal to be approved for food use was the AquAdvantage salmon in 2015.", "title": "" }, { "paragraph_id": 2, "text": "Bacteria are the easiest organisms to engineer and have been used for research, food production, industrial protein purification (including drugs), agriculture, and art. There is potential to use them for environmental purposes or as medicine. Fungi have been engineered with much the same goals. Viruses play an important role as vectors for inserting genetic information into other organisms. This use is especially relevant to human gene therapy. There are proposals to remove the virulent genes from viruses to create vaccines. Plants have been engineered for scientific research, to create new colors in plants, deliver vaccines, and to create enhanced crops. Genetically modified crops are publicly the most controversial GMOs, in spite of having the most human health and environmental benefits. The majority are engineered for herbicide tolerance or insect resistance. Golden rice has been engineered with three genes that increase its nutritional value. Other prospects for GM crops are as bioreactors for the production of biopharmaceuticals, biofuels, or medicines.", "title": "" }, { "paragraph_id": 3, "text": "Animals are generally much harder to transform and the vast majority are still at the research stage. Mammals are the best model organisms for humans, making ones genetically engineered to resemble serious human diseases important to the discovery and development of treatments. Human proteins expressed in mammals are more likely to be similar to their natural counterparts than those expressed in plants or microorganisms. Livestock is modified with the intention of improving economically important traits such as growth rate, quality of meat, milk composition, disease resistance, and survival. Genetically modified fish are used for scientific research, as pets, and as a food source. Genetic engineering has been proposed as a way to control mosquitos, a vector for many deadly diseases. Although human gene therapy is still relatively new, it has been used to treat genetic disorders such as severe combined immunodeficiency and Leber's congenital amaurosis.", "title": "" }, { "paragraph_id": 4, "text": "Many objections have been raised over the development of GMOs, particularly their commercialization. Many of these involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. Other concerns are the objectivity and rigor of regulatory authorities, contamination of non-genetically modified food, control of the food supply, patenting of life, and the use of intellectual property rights. Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, GM food safety is a leading issue with critics. Gene flow, impact on non-target organisms, and escape are the major environmental concerns. Countries have adopted regulatory measures to deal with these concerns. There are differences in the regulation for the release of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Key issues concerning regulators include whether GM food should be labeled and the status of gene-edited organisms.", "title": "" }, { "paragraph_id": 5, "text": "The definition of a genetically modified organism (GMO) is not clear and varies widely between countries, international bodies, and other communities. At its broadest, the definition of a GMO can include anything that has had its genes altered, including by nature. Taking a less broad view, it can encompass every organism that has had its genes altered by humans, which would include all crops and livestock. In 1993, the Encyclopedia Britannica defined genetic engineering as \"any of a wide range of techniques ... among them artificial insemination, in vitro fertilization (e.g., 'test-tube' babies), sperm banks, cloning, and gene manipulation.\" The European Union (EU) included a similarly broad definition in early reviews, specifically mentioning GMOs being produced by \"selective breeding and other means of artificial selection\" These definitions were promptly adjusted with a number of exceptions added as the result of pressure from scientific and farming communities, as well as developments in science. The EU definition later excluded traditional breeding, in vitro fertilization, induction of polyploidy, mutation breeding, and cell fusion techniques that do not use recombinant nucleic acids or a genetically modified organism in the process.", "title": "Definition" }, { "paragraph_id": 6, "text": "Another approach was the definition provided by the Food and Agriculture Organization, the World Health Organization, and the European Commission, stating that the organisms must be altered in a way that does \"not occur naturally by mating and/or natural recombination\". Progress in science, such as the discovery of horizontal gene transfer being a relatively common natural phenomenon, further added to the confusion on what \"occurs naturally\", which led to further adjustments and exceptions. There are examples of crops that fit this definition, but are not normally considered GMOs. For example, the grain crop triticale was fully developed in a laboratory in 1930 using various techniques to alter its genome.", "title": "Definition" }, { "paragraph_id": 7, "text": "Genetically engineered organism (GEO) can be considered a more precise term compared to GMO when describing organisms' genomes that have been directly manipulated with biotechnology. The Cartagena Protocol on Biosafety used the synonym living modified organism (LMO) in 2000 and defined it as \"any living organism that possesses a novel combination of genetic material obtained through the use of modern biotechnology.\" Modern biotechnology is further defined as \"In vitro nucleic acid techniques, including recombinant deoxyribonucleic acid (DNA) and direct injection of nucleic acid into cells or organelles, or fusion of cells beyond the taxonomic family.\"", "title": "Definition" }, { "paragraph_id": 8, "text": "The term GMO originally was not typically used by scientists to describe genetically engineered organisms until after usage of GMO became common in popular media. The United States Department of Agriculture (USDA) considers GMOs to be plants or animals with heritable changes introduced by genetic engineering or traditional methods, while GEO specifically refers to organisms with genes introduced, eliminated, or rearranged using molecular biology, particularly recombinant DNA techniques, such as transgenesis.", "title": "Definition" }, { "paragraph_id": 9, "text": "The definitions focus on the process more than the product, which means there could be GMOS and non-GMOs with very similar genotypes and phenotypes. This has led scientists to label it as a scientifically meaningless category, saying that it is impossible to group all the different types of GMOs under one common definition. It has also caused issues for organic institutions and groups looking to ban GMOs. It also poses problems as new processes are developed. The current definitions came in before genome editing became popular and there is some confusion as to whether they are GMOs. The EU has adjudged that they are changing their GMO definition to include \"organisms obtained by mutagenesis\", but has excluded them from regulation based on their \"long safety record\" and that they have been \"conventionally been used in a number of applications\". In contrast the USDA has ruled that gene edited organisms are not considered GMOs.", "title": "Definition" }, { "paragraph_id": 10, "text": "Even greater inconsistency and confusion is associated with various \"Non-GMO\" or \"GMO-free\" labeling schemes in food marketing, where even products such as water or salt, which do not contain any organic substances and genetic material (and thus cannot be genetically modified by definition), are being labeled to create an impression of being \"more healthy\".", "title": "Definition" }, { "paragraph_id": 11, "text": "Creating a genetically modified organism (GMO) is a multi-step process. Genetic engineers must isolate the gene they wish to insert into the host organism. This gene can be taken from a cell or artificially synthesized. If the chosen gene or the donor organism's genome has been well studied it may already be accessible from a genetic library. The gene is then combined with other genetic elements, including a promoter and terminator region and a selectable marker.", "title": "Production" }, { "paragraph_id": 12, "text": "A number of techniques are available for inserting the isolated gene into the host genome. Bacteria can be induced to take up foreign DNA, usually by exposed heat shock or electroporation. DNA is generally inserted into animal cells using microinjection, where it can be injected through the cell's nuclear envelope directly into the nucleus, or through the use of viral vectors. In plants the DNA is often inserted using Agrobacterium-mediated recombination, biolistics or electroporation.", "title": "Production" }, { "paragraph_id": 13, "text": "As only a single cell is transformed with genetic material, the organism must be regenerated from that single cell. In plants this is accomplished through tissue culture. In animals it is necessary to ensure that the inserted DNA is present in the embryonic stem cells. Further testing using PCR, Southern hybridization, and DNA sequencing is conducted to confirm that an organism contains the new gene.", "title": "Production" }, { "paragraph_id": 14, "text": "Traditionally the new genetic material was inserted randomly within the host genome. Gene targeting techniques, which creates double-stranded breaks and takes advantage on the cells natural homologous recombination repair systems, have been developed to target insertion to exact locations. Genome editing uses artificially engineered nucleases that create breaks at specific points. There are four families of engineered nucleases: meganucleases, zinc finger nucleases, transcription activator-like effector nucleases (TALENs), and the Cas9-guideRNA system (adapted from CRISPR). TALEN and CRISPR are the two most commonly used and each has its own advantages. TALENs have greater target specificity, while CRISPR is easier to design and more efficient.", "title": "Production" }, { "paragraph_id": 15, "text": "Humans have domesticated plants and animals since around 12,000 BCE, using selective breeding or artificial selection (as contrasted with natural selection). The process of selective breeding, in which organisms with desired traits (and thus with the desired genes) are used to breed the next generation and organisms lacking the trait are not bred, is a precursor to the modern concept of genetic modification. Various advancements in genetics allowed humans to directly alter the DNA and therefore genes of organisms. In 1972, Paul Berg created the first recombinant DNA molecule when he combined DNA from a monkey virus with that of the lambda virus.", "title": "History" }, { "paragraph_id": 16, "text": "Herbert Boyer and Stanley Cohen made the first genetically modified organism in 1973. They took a gene from a bacterium that provided resistance to the antibiotic kanamycin, inserted it into a plasmid and then induced other bacteria to incorporate the plasmid. The bacteria that had successfully incorporated the plasmid was then able to survive in the presence of kanamycin. Boyer and Cohen expressed other genes in bacteria. This included genes from the toad Xenopus laevis in 1974, creating the first GMO expressing a gene from an organism of a different kingdom.", "title": "History" }, { "paragraph_id": 17, "text": "In 1974, Rudolf Jaenisch created a transgenic mouse by introducing foreign DNA into its embryo, making it the world's first transgenic animal. However it took another eight years before transgenic mice were developed that passed the transgene to their offspring. Genetically modified mice were created in 1984 that carried cloned oncogenes, predisposing them to developing cancer. Mice with genes removed (termed a knockout mouse) were created in 1989. The first transgenic livestock were produced in 1985 and the first animal to synthesize transgenic proteins in their milk were mice in 1987. The mice were engineered to produce human tissue plasminogen activator, a protein involved in breaking down blood clots.", "title": "History" }, { "paragraph_id": 18, "text": "In 1983, the first genetically engineered plant was developed by Michael W. Bevan, Richard B. Flavell and Mary-Dell Chilton. They infected tobacco with Agrobacterium transformed with an antibiotic resistance gene and through tissue culture techniques were able to grow a new plant containing the resistance gene. The gene gun was invented in 1987, allowing transformation of plants not susceptible to Agrobacterium infection. In 2000, Vitamin A-enriched golden rice was the first plant developed with increased nutrient value.", "title": "History" }, { "paragraph_id": 19, "text": "In 1976, Genentech, the first genetic engineering company was founded by Herbert Boyer and Robert Swanson; a year later, the company produced a human protein (somatostatin) in E. coli. Genentech announced the production of genetically engineered human insulin in 1978. The insulin produced by bacteria, branded Humulin, was approved for release by the Food and Drug Administration in 1982. In 1988, the first human antibodies were produced in plants. In 1987, a strain of Pseudomonas syringae became the first genetically modified organism to be released into the environment when a strawberry and potato field in California were sprayed with it.", "title": "History" }, { "paragraph_id": 20, "text": "The first genetically modified crop, an antibiotic-resistant tobacco plant, was produced in 1982. China was the first country to commercialize transgenic plants, introducing a virus-resistant tobacco in 1992. In 1994, Calgene attained approval to commercially release the Flavr Savr tomato, the first genetically modified food. Also in 1994, the European Union approved tobacco engineered to be resistant to the herbicide bromoxynil, making it the first genetically engineered crop commercialized in Europe. An insect resistant Potato was approved for release in the US in 1995, and by 1996 approval had been granted to commercially grow 8 transgenic crops and one flower crop (carnation) in 6 countries plus the EU.", "title": "History" }, { "paragraph_id": 21, "text": "In 2010, scientists at the J. Craig Venter Institute announced that they had created the first synthetic bacterial genome. They named it Synthia and it was the world's first synthetic life form.", "title": "History" }, { "paragraph_id": 22, "text": "The first genetically modified animal to be commercialized was the GloFish, a Zebra fish with a fluorescent gene added that allows it to glow in the dark under ultraviolet light. It was released to the US market in 2003. In 2015, AquAdvantage salmon became the first genetically modified animal to be approved for food use. Approval is for fish raised in Panama and sold in the US. The salmon were transformed with a growth hormone-regulating gene from a Pacific Chinook salmon and a promoter from an ocean pout enabling it to grow year-round instead of only during spring and summer.", "title": "History" }, { "paragraph_id": 23, "text": "Bacteria were the first organisms to be genetically modified in the laboratory, due to the relative ease of modifying their chromosomes. This ease made them important tools for the creation of other GMOs. Genes and other genetic information from a wide range of organisms can be added to a plasmid and inserted into bacteria for storage and modification. Bacteria are cheap, easy to grow, clonal, multiply quickly and can be stored at −80 °C almost indefinitely. Once a gene is isolated it can be stored inside the bacteria, providing an unlimited supply for research. A large number of custom plasmids make manipulating DNA extracted from bacteria relatively easy.", "title": "Bacteria" }, { "paragraph_id": 24, "text": "Their ease of use has made them great tools for scientists looking to study gene function and evolution. The simplest model organisms come from bacteria, with most of our early understanding of molecular biology coming from studying Escherichia coli. Scientists can easily manipulate and combine genes within the bacteria to create novel or disrupted proteins and observe the effect this has on various molecular systems. Researchers have combined the genes from bacteria and archaea, leading to insights on how these two diverged in the past. In the field of synthetic biology, they have been used to test various synthetic approaches, from synthesizing genomes to creating novel nucleotides.", "title": "Bacteria" }, { "paragraph_id": 25, "text": "Bacteria have been used in the production of food for a long time, and specific strains have been developed and selected for that work on an industrial scale. They can be used to produce enzymes, amino acids, flavorings, and other compounds used in food production. With the advent of genetic engineering, new genetic changes can easily be introduced into these bacteria. Most food-producing bacteria are lactic acid bacteria, and this is where the majority of research into genetically engineering food-producing bacteria has gone. The bacteria can be modified to operate more efficiently, reduce toxic byproduct production, increase output, create improved compounds, and remove unnecessary pathways. Food products from genetically modified bacteria include alpha-amylase, which converts starch to simple sugars, chymosin, which clots milk protein for cheese making, and pectinesterase, which improves fruit juice clarity. The majority are produced in the US and even though regulations are in place to allow production in Europe, as of 2015 no food products derived from bacteria are currently available there.", "title": "Bacteria" }, { "paragraph_id": 26, "text": "Genetically modified bacteria are used to produce large amounts of proteins for industrial use. Generally the bacteria are grown to a large volume before the gene encoding the protein is activated. The bacteria are then harvested and the desired protein purified from them. The high cost of extraction and purification has meant that only high value products have been produced at an industrial scale. The majority of these products are human proteins for use in medicine. Many of these proteins are impossible or difficult to obtain via natural methods and they are less likely to be contaminated with pathogens, making them safer. The first medicinal use of GM bacteria was to produce the protein insulin to treat diabetes. Other medicines produced include clotting factors to treat hemophilia, human growth hormone to treat various forms of dwarfism, interferon to treat some cancers, erythropoietin for anemic patients, and tissue plasminogen activator which dissolves blood clots. Outside of medicine they have been used to produce biofuels. There is interest in developing an extracellular expression system within the bacteria to reduce costs and make the production of more products economical.", "title": "Bacteria" }, { "paragraph_id": 27, "text": "With a greater understanding of the role that the microbiome plays in human health, there is a potential to treat diseases by genetically altering the bacteria to, themselves, be therapeutic agents. Ideas include altering gut bacteria so they destroy harmful bacteria, or using bacteria to replace or increase deficient enzymes or proteins. One research focus is to modify Lactobacillus, bacteria that naturally provide some protection against HIV, with genes that will further enhance this protection. If the bacteria do not form colonies inside the patient, the person must repeatedly ingest the modified bacteria in order to get the required doses. Enabling the bacteria to form a colony could provide a more long-term solution, but could also raise safety concerns as interactions between bacteria and the human body are less well understood than with traditional drugs. There are concerns that horizontal gene transfer to other bacteria could have unknown effects. As of 2018 there are clinical trials underway testing the efficacy and safety of these treatments.", "title": "Bacteria" }, { "paragraph_id": 28, "text": "For over a century bacteria have been used in agriculture. Crops have been inoculated with Rhizobia (and more recently Azospirillum) to increase their production or to allow them to be grown outside their original habitat. Application of Bacillus thuringiensis (Bt) and other bacteria can help protect crops from insect infestation and plant diseases. With advances in genetic engineering, these bacteria have been manipulated for increased efficiency and expanded host range. Markers have also been added to aid in tracing the spread of the bacteria. The bacteria that naturally colonize certain crops have also been modified, in some cases to express the Bt genes responsible for pest resistance. Pseudomonas strains of bacteria cause frost damage by nucleating water into ice crystals around themselves. This led to the development of ice-minus bacteria, which have the ice-forming genes removed. When applied to crops they can compete with the non-modified bacteria and confer some frost resistance.", "title": "Bacteria" }, { "paragraph_id": 29, "text": "Other uses for genetically modified bacteria include bioremediation, where the bacteria are used to convert pollutants into a less toxic form. Genetic engineering can increase the levels of the enzymes used to degrade a toxin or to make the bacteria more stable under environmental conditions. Bioart has also been created using genetically modified bacteria. In the 1980s artist Jon Davis and geneticist Dana Boyd converted the Germanic symbol for femininity (ᛉ) into binary code and then into a DNA sequence, which was then expressed in Escherichia coli. This was taken a step further in 2012, when a whole book was encoded onto DNA. Paintings have also been produced using bacteria transformed with fluorescent proteins.", "title": "Bacteria" }, { "paragraph_id": 30, "text": "Viruses are often modified so they can be used as vectors for inserting genetic information into other organisms. This process is called transduction and if successful the recipient of the introduced DNA becomes a GMO. Different viruses have different efficiencies and capabilities. Researchers can use this to control for various factors; including the target location, insert size, and duration of gene expression. Any dangerous sequences inherent in the virus must be removed, while those that allow the gene to be delivered effectively are retained.", "title": "Viruses" }, { "paragraph_id": 31, "text": "While viral vectors can be used to insert DNA into almost any organism it is especially relevant for its potential in treating human disease. Although primarily still at trial stages, there has been some successes using gene therapy to replace defective genes. This is most evident in curing patients with severe combined immunodeficiency rising from adenosine deaminase deficiency (ADA-SCID), although the development of leukemia in some ADA-SCID patients along with the death of Jesse Gelsinger in a 1999 trial set back the development of this approach for many years. In 2009, another breakthrough was achieved when an eight-year-old boy with Leber's congenital amaurosis regained normal eyesight and in 2016 GlaxoSmithKline gained approval to commercialize a gene therapy treatment for ADA-SCID. As of 2018, there are a substantial number of clinical trials underway, including treatments for hemophilia, glioblastoma, chronic granulomatous disease, cystic fibrosis and various cancers.", "title": "Viruses" }, { "paragraph_id": 32, "text": "The most common virus used for gene delivery comes from adenoviruses as they can carry up to 7.5 kb of foreign DNA and infect a relatively broad range of host cells, although they have been known to elicit immune responses in the host and only provide short term expression. Other common vectors are adeno-associated viruses, which have lower toxicity and longer-term expression, but can only carry about 4kb of DNA. Herpes simplex viruses make promising vectors, having a carrying capacity of over 30kb and providing long term expression, although they are less efficient at gene delivery than other vectors. The best vectors for long term integration of the gene into the host genome are retroviruses, but their propensity for random integration is problematic. Lentiviruses are a part of the same family as retroviruses with the advantage of infecting both dividing and non-dividing cells, whereas retroviruses only target dividing cells. Other viruses that have been used as vectors include alphaviruses, flaviviruses, measles viruses, rhabdoviruses, Newcastle disease virus, poxviruses, and picornaviruses.", "title": "Viruses" }, { "paragraph_id": 33, "text": "Most vaccines consist of viruses that have been attenuated, disabled, weakened or killed in some way so that their virulent properties are no longer effective. Genetic engineering could theoretically be used to create viruses with the virulent genes removed. This does not affect the viruses infectivity, invokes a natural immune response and there is no chance that they will regain their virulence function, which can occur with some other vaccines. As such they are generally considered safer and more efficient than conventional vaccines, although concerns remain over non-target infection, potential side effects and horizontal gene transfer to other viruses. Another potential approach is to use vectors to create novel vaccines for diseases that have no vaccines available or the vaccines that do not work effectively, such as AIDS, malaria, and tuberculosis. The most effective vaccine against Tuberculosis, the Bacillus Calmette–Guérin (BCG) vaccine, only provides partial protection. A modified vaccine expressing a M tuberculosis antigen is able to enhance BCG protection. It has been shown to be safe to use at phase II trials, although not as effective as initially hoped. Other vector-based vaccines have already been approved and many more are being developed.", "title": "Viruses" }, { "paragraph_id": 34, "text": "Another potential use of genetically modified viruses is to alter them so they can directly treat diseases. This can be through expression of protective proteins or by directly targeting infected cells. In 2004, researchers reported that a genetically modified virus that exploits the selfish behavior of cancer cells might offer an alternative way of killing tumours. Since then, several researchers have developed genetically modified oncolytic viruses that show promise as treatments for various types of cancer. In 2017, researchers genetically modified a virus to express spinach defensin proteins. The virus was injected into orange trees to combat citrus greening disease that had reduced orange production by 70% since 2005.", "title": "Viruses" }, { "paragraph_id": 35, "text": "Natural viral diseases, such as myxomatosis and rabbit hemorrhagic disease, have been used to help control pest populations. Over time the surviving pests become resistant, leading researchers to look at alternative methods. Genetically modified viruses that make the target animals infertile through immunocontraception have been created in the laboratory as well as others that target the developmental stage of the animal. There are concerns with using this approach regarding virus containment and cross species infection. Sometimes the same virus can be modified for contrasting purposes. Genetic modification of the myxoma virus has been proposed to conserve European wild rabbits in the Iberian peninsula and to help regulate them in Australia. To protect the Iberian species from viral diseases, the myxoma virus was genetically modified to immunize the rabbits, while in Australia the same myxoma virus was genetically modified to lower fertility in the Australian rabbit population.", "title": "Viruses" }, { "paragraph_id": 36, "text": "Outside of biology scientists have used a genetically modified virus to construct a lithium-ion battery and other nanostructured materials. It is possible to engineer bacteriophages to express modified proteins on their surface and join them up in specific patterns (a technique called phage display). These structures have potential uses for energy storage and generation, biosensing and tissue regeneration with some new materials currently produced including quantum dots, liquid crystals, nanorings and nanofibres. The battery was made by engineering M13 bacteriaophages so they would coat themselves in iron phosphate and then assemble themselves along a carbon nanotube. This created a highly conductive medium for use in a cathode, allowing energy to be transferred quickly. They could be constructed at lower temperatures with non-toxic chemicals, making them more environmentally friendly.", "title": "Viruses" }, { "paragraph_id": 37, "text": "Fungi can be used for many of the same processes as bacteria. For industrial applications, yeasts combine the bacterial advantages of being a single-celled organism that is easy to manipulate and grow with the advanced protein modifications found in eukaryotes. They can be used to produce large complex molecules for use in food, pharmaceuticals, hormones, and steroids. Yeast is important for wine production and as of 2016 two genetically modified yeasts involved in the fermentation of wine have been commercialized in the United States and Canada. One has increased malolactic fermentation efficiency, while the other prevents the production of dangerous ethyl carbamate compounds during fermentation. There have also been advances in the production of biofuel from genetically modified fungi.", "title": "Fungi" }, { "paragraph_id": 38, "text": "Fungi, being the most common pathogens of insects, make attractive biopesticides. Unlike bacteria and viruses they have the advantage of infecting the insects by contact alone, although they are out competed in efficiency by chemical pesticides. Genetic engineering can improve virulence, usually by adding more virulent proteins, increasing infection rate or enhancing spore persistence. Many of the disease carrying vectors are susceptible to entomopathogenic fungi. An attractive target for biological control are mosquitos, vectors for a range of deadly diseases, including malaria, yellow fever and dengue fever. Mosquitos can evolve quickly so it becomes a balancing act of killing them before the Plasmodium they carry becomes the infectious disease, but not so fast that they become resistant to the fungi. By genetically engineering fungi like Metarhizium anisopliae and Beauveria bassiana to delay the development of mosquito infectiousness the selection pressure to evolve resistance is reduced. Another strategy is to add proteins to the fungi that block transmission of malaria or remove the Plasmodium altogether.", "title": "Fungi" }, { "paragraph_id": 39, "text": "Agaricus bisporus the common white button mushroom, has been gene edited to resist browning, giving it a longer shelf life. The process used CRISPR to knock out a gene that encodes polyphenol oxidase. As it didn't introduce any foreign DNA into the organism it was not deemed to be regulated under existing GMO frameworks and as such is the first CRISPR-edited organism to be approved for release. This has intensified debates as to whether gene-edited organisms should be considered genetically modified organisms and how they should be regulated.", "title": "Fungi" }, { "paragraph_id": 40, "text": "Plants have been engineered for scientific research, to display new flower colors, deliver vaccines, and to create enhanced crops. Many plants are pluripotent, meaning that a single cell from a mature plant can be harvested and under the right conditions can develop into a new plant. This ability can be taken advantage of by genetic engineers; by selecting for cells that have been successfully transformed in an adult plant a new plant can then be grown that contains the transgene in every cell through a process known as tissue culture.", "title": "Plants" }, { "paragraph_id": 41, "text": "Much of the advances in the field of genetic engineering has come from experimentation with tobacco. Major advances in tissue culture and plant cellular mechanisms for a wide range of plants has originated from systems developed in tobacco. It was the first plant to be altered using genetic engineering and is considered a model organism for not only genetic engineering, but a range of other fields. As such the transgenic tools and procedures are well established making tobacco one of the easiest plants to transform. Another major model organism relevant to genetic engineering is Arabidopsis thaliana. Its small genome and short life cycle makes it easy to manipulate and it contains many homologs to important crop species. It was the first plant sequenced, has a host of online resources available and can be transformed by simply dipping a flower in a transformed Agrobacterium solution.", "title": "Plants" }, { "paragraph_id": 42, "text": "In research, plants are engineered to help discover the functions of certain genes. The simplest way to do this is to remove the gene and see what phenotype develops compared to the wild type form. Any differences are possibly the result of the missing gene. Unlike mutagenisis, genetic engineering allows targeted removal without disrupting other genes in the organism. Some genes are only expressed in certain tissues, so reporter genes, like GUS, can be attached to the gene of interest allowing visualization of the location. Other ways to test a gene is to alter it slightly and then return it to the plant and see if it still has the same effect on phenotype. Other strategies include attaching the gene to a strong promoter and see what happens when it is overexpressed, forcing a gene to be expressed in a different location or at different developmental stages.", "title": "Plants" }, { "paragraph_id": 43, "text": "Some genetically modified plants are purely ornamental. They are modified for flower color, fragrance, flower shape and plant architecture. The first genetically modified ornamentals commercialized altered color. Carnations were released in 1997, with the most popular genetically modified organism, a blue rose (actually lavender or mauve) created in 2004. The roses are sold in Japan, the United States, and Canada. Other genetically modified ornamentals include Chrysanthemum and Petunia. As well as increasing aesthetic value there are plans to develop ornamentals that use less water or are resistant to the cold, which would allow them to be grown outside their natural environments.", "title": "Plants" }, { "paragraph_id": 44, "text": "It has been proposed to genetically modify some plant species threatened by extinction to be resistant to invasive plants and diseases, such as the emerald ash borer in North American and the fungal disease, Ceratocystis platani, in European plane trees. The papaya ringspot virus devastated papaya trees in Hawaii in the twentieth century until transgenic papaya plants were given pathogen-derived resistance. However, genetic modification for conservation in plants remains mainly speculative. A unique concern is that a transgenic species may no longer bear enough resemblance to the original species to truly claim that the original species is being conserved. Instead, the transgenic species may be genetically different enough to be considered a new species, thus diminishing the conservation worth of genetic modification.", "title": "Plants" }, { "paragraph_id": 45, "text": "Genetically modified crops are genetically modified plants that are used in agriculture. The first crops developed were used for animal or human food and provide resistance to certain pests, diseases, environmental conditions, spoilage or chemical treatments (e.g. resistance to a herbicide). The second generation of crops aimed to improve the quality, often by altering the nutrient profile. Third generation genetically modified crops could be used for non-food purposes, including the production of pharmaceutical agents, biofuels, and other industrially useful goods, as well as for bioremediation.", "title": "Plants" }, { "paragraph_id": 46, "text": "There are three main aims to agricultural advancement; increased production, improved conditions for agricultural workers and sustainability. GM crops contribute by improving harvests through reducing insect pressure, increasing nutrient value and tolerating different abiotic stresses. Despite this potential, as of 2018, the commercialized crops are limited mostly to cash crops like cotton, soybean, maize and canola and the vast majority of the introduced traits provide either herbicide tolerance or insect resistance. Soybeans accounted for half of all genetically modified crops planted in 2014. Adoption by farmers has been rapid, between 1996 and 2013, the total surface area of land cultivated with GM crops increased by a factor of 100. Geographically though the spread has been uneven, with strong growth in the Americas and parts of Asia and little in Europe and Africa. Its socioeconomic spread has been more even, with approximately 54% of worldwide GM crops grown in developing countries in 2013. Although doubts have been raised, most studies have found growing GM crops to be beneficial to farmers through decreased pesticide use as well as increased crop yield and farm profit.", "title": "Plants" }, { "paragraph_id": 47, "text": "The majority of GM crops have been modified to be resistant to selected herbicides, usually a glyphosate or glufosinate based one. Genetically modified crops engineered to resist herbicides are now more available than conventionally bred resistant varieties; in the USA 93% of soybeans and most of the GM maize grown is glyphosate tolerant. Most currently available genes used to engineer insect resistance come from the Bacillus thuringiensis bacterium and code for delta endotoxins. A few use the genes that encode for vegetative insecticidal proteins. The only gene commercially used to provide insect protection that does not originate from B. thuringiensis is the Cowpea trypsin inhibitor (CpTI). CpTI was first approved for use cotton in 1999 and is currently undergoing trials in rice. Less than one percent of GM crops contained other traits, which include providing virus resistance, delaying senescence and altering the plants composition.", "title": "Plants" }, { "paragraph_id": 48, "text": "Golden rice is the most well known GM crop that is aimed at increasing nutrient value. It has been engineered with three genes that biosynthesise beta-carotene, a precursor of vitamin A, in the edible parts of rice. It is intended to produce a fortified food to be grown and consumed in areas with a shortage of dietary vitamin A, a deficiency which each year is estimated to kill 670,000 children under the age of 5 and cause an additional 500,000 cases of irreversible childhood blindness. The original golden rice produced 1.6μg/g of the carotenoids, with further development increasing this 23 times. It gained its first approvals for use as food in 2018.", "title": "Plants" }, { "paragraph_id": 49, "text": "Plants and plant cells have been genetically engineered for production of biopharmaceuticals in bioreactors, a process known as pharming. Work has been done with duckweed Lemna minor, the algae Chlamydomonas reinhardtii and the moss Physcomitrella patens. Biopharmaceuticals produced include cytokines, hormones, antibodies, enzymes and vaccines, most of which are accumulated in the plant seeds. Many drugs also contain natural plant ingredients and the pathways that lead to their production have been genetically altered or transferred to other plant species to produce greater volume. Other options for bioreactors are biopolymers and biofuels. Unlike bacteria, plants can modify the proteins post-translationally, allowing them to make more complex molecules. They also pose less risk of being contaminated. Therapeutics have been cultured in transgenic carrot and tobacco cells, including a drug treatment for Gaucher's disease.", "title": "Plants" }, { "paragraph_id": 50, "text": "Vaccine production and storage has great potential in transgenic plants. Vaccines are expensive to produce, transport, and administer, so having a system that could produce them locally would allow greater access to poorer and developing areas. As well as purifying vaccines expressed in plants it is also possible to produce edible vaccines in plants. Edible vaccines stimulate the immune system when ingested to protect against certain diseases. Being stored in plants reduces the long-term cost as they can be disseminated without the need for cold storage, don't need to be purified, and have long term stability. Also being housed within plant cells provides some protection from the gut acids upon digestion. However the cost of developing, regulating, and containing transgenic plants is high, leading to most current plant-based vaccine development being applied to veterinary medicine, where the controls are not as strict.", "title": "Plants" }, { "paragraph_id": 51, "text": "Genetically modified crops have been proposed as one of the ways to reduce farming-related CO2 emissions due to higher yield, reduced use of pesticides, reduced use of tractor fuel and no tillage. According to a 2021 study, in EU alone widespread adoption of GE crops would reduce greenhouse gas emissions by 33 million tons of CO2 equivalent or 7.5% of total farming-related emissions.", "title": "Plants" }, { "paragraph_id": 52, "text": "The vast majority of genetically modified animals are at the research stage with the number close to entering the market remaining small. As of 2018 only three genetically modified animals have been approved, all in the USA. A goat and a chicken have been engineered to produce medicines and a salmon has increased its own growth. Despite the differences and difficulties in modifying them, the end aims are much the same as for plants. GM animals are created for research purposes, production of industrial or therapeutic products, agricultural uses, or improving their health. There is also a market for creating genetically modified pets.", "title": "Animals" }, { "paragraph_id": 53, "text": "The process of genetically engineering mammals is slow, tedious, and expensive. However, new technologies are making genetic modifications easier and more precise. The first transgenic mammals were produced by injecting viral DNA into embryos and then implanting the embryos in females. The embryo would develop and it would be hoped that some of the genetic material would be incorporated into the reproductive cells. Then researchers would have to wait until the animal reached breeding age and then offspring would be screened for the presence of the gene in every cell. The development of the CRISPR-Cas9 gene editing system as a cheap and fast way of directly modifying germ cells, effectively halving the amount of time needed to develop genetically modified mammals.", "title": "Animals" }, { "paragraph_id": 54, "text": "Mammals are the best models for human disease, making genetic engineered ones vital to the discovery and development of cures and treatments for many serious diseases. Knocking out genes responsible for human genetic disorders allows researchers to study the mechanism of the disease and to test possible cures. Genetically modified mice have been the most common mammals used in biomedical research, as they are cheap and easy to manipulate. Pigs are also a good target as they have a similar body size and anatomical features, physiology, pathophysiological response and diet. Nonhuman primates are the most similar model organisms to humans, but there is less public acceptance towards using them as research animals. In 2009, scientists announced that they had successfully transferred a gene into a primate species (marmosets) for the first time. Their first research target for these marmosets was Parkinson's disease, but they were also considering amyotrophic lateral sclerosis and Huntington's disease.", "title": "Animals" }, { "paragraph_id": 55, "text": "Human proteins expressed in mammals are more likely to be similar to their natural counterparts than those expressed in plants or microorganisms. Stable expression has been accomplished in sheep, pigs, rats and other animals. In 2009, the first human biological drug produced from such an animal, a goat, was approved. The drug, ATryn, is an anticoagulant which reduces the probability of blood clots during surgery or childbirth and is extracted from the goat's milk. Human alpha-1-antitrypsin is another protein that has been produced from goats and is used in treating humans with this deficiency. Another medicinal area is in creating pigs with greater capacity for human organ transplants (xenotransplantation). Pigs have been genetically modified so that their organs can no longer carry retroviruses or have modifications to reduce the chance of rejection. Pig lungs from genetically modified pigs are being considered for transplantation into humans. There is even potential to create chimeric pigs that can carry human organs.", "title": "Animals" }, { "paragraph_id": 56, "text": "Livestock are modified with the intention of improving economically important traits such as growth-rate, quality of meat, milk composition, disease resistance and survival. Animals have been engineered to grow faster, be healthier and resist diseases. Modifications have also improved the wool production of sheep and udder health of cows. Goats have been genetically engineered to produce milk with strong spiderweb-like silk proteins in their milk. A GM pig called Enviropig was created with the capability of digesting plant phosphorus more efficiently than conventional pigs. They could reduce water pollution since they excrete 30 to 70% less phosphorus in manure. Dairy cows have been genetically engineered to produce milk that would be the same as human breast milk. This could potentially benefit mothers who cannot produce breast milk but want their children to have breast milk rather than formula. Researchers have also developed a genetically engineered cow that produces allergy-free milk.", "title": "Animals" }, { "paragraph_id": 57, "text": "Scientists have genetically engineered several organisms, including some mammals, to include green fluorescent protein (GFP), for research purposes. GFP and other similar reporting genes allow easy visualization and localization of the products of the genetic modification. Fluorescent pigs have been bred to study human organ transplants, regenerating ocular photoreceptor cells, and other topics. In 2011, green-fluorescent cats were created to help find therapies for HIV/AIDS and other diseases as feline immunodeficiency virus is related to HIV.", "title": "Animals" }, { "paragraph_id": 58, "text": "There have been suggestions that genetic engineering could be used to bring animals back from extinction. It involves changing the genome of a close living relative to resemble the extinct one and is currently being attempted with the passenger pigeon. Genes associated with the woolly mammoth have been added to the genome of an African Elephant, although the lead researcher says he has no intention of creating live elephants and transferring all the genes and reversing years of genetic evolution is a long way from being feasible. It is more likely that scientists could use this technology to conserve endangered animals by bringing back lost diversity or transferring evolved genetic advantages from adapted organisms to those that are struggling.", "title": "Animals" }, { "paragraph_id": 59, "text": "Gene therapy uses genetically modified viruses to deliver genes which can cure disease in humans. Although gene therapy is still relatively new, it has had some successes. It has been used to treat genetic disorders such as severe combined immunodeficiency, and Leber's congenital amaurosis. Treatments are also being developed for a range of other currently incurable diseases, such as cystic fibrosis, sickle cell anemia, Parkinson's disease, cancer, diabetes, heart disease and muscular dystrophy. These treatments only effect somatic cells, meaning any changes would not be inheritable. Germline gene therapy results in any change being inheritable, which has raised concerns within the scientific community.", "title": "Animals" }, { "paragraph_id": 60, "text": "In 2015, CRISPR was used to edit the DNA of non-viable human embryos. In November 2018, He Jiankui announced that he had edited the genomes of two human embryos, in an attempt to disable the CCR5 gene, which codes for a receptor that HIV uses to enter cells. He said that twin girls, Lulu and Nana, had been born a few weeks earlier and that they carried functional copies of CCR5 along with disabled CCR5 (mosaicism) and were still vulnerable to HIV. The work was widely condemned as unethical, dangerous, and premature.", "title": "Animals" }, { "paragraph_id": 61, "text": "Genetically modified fish are used for scientific research, as pets and as a food source. Aquaculture is a growing industry, currently providing over half the consumed fish worldwide. Through genetic engineering it is possible to increase growth rates, reduce food intake, remove allergenic properties, increase cold tolerance and provide disease resistance. Fish can also be used to detect aquatic pollution or function as bioreactors.", "title": "Animals" }, { "paragraph_id": 62, "text": "Several groups have been developing zebrafish to detect pollution by attaching fluorescent proteins to genes activated by the presence of pollutants. The fish will then glow and can be used as environmental sensors. The GloFish is a brand of genetically modified fluorescent zebrafish with bright red, green, and orange fluorescent color. It was originally developed by one of the groups to detect pollution, but is now part of the ornamental fish trade, becoming the first genetically modified animal to become publicly available as a pet when in 2003 it was introduced for sale in the USA.", "title": "Animals" }, { "paragraph_id": 63, "text": "GM fish are widely used in basic research in genetics and development. Two species of fish, zebrafish and medaka, are most commonly modified because they have optically clear chorions (membranes in the egg), rapidly develop, and the one-cell embryo is easy to see and microinject with transgenic DNA. Zebrafish are model organisms for developmental processes, regeneration, genetics, behavior, disease mechanisms and toxicity testing. Their transparency allows researchers to observe developmental stages, intestinal functions and tumour growth. The generation of transgenic protocols (whole organism, cell or tissue specific, tagged with reporter genes) has increased the level of information gained by studying these fish.", "title": "Animals" }, { "paragraph_id": 64, "text": "GM fish have been developed with promoters driving an over-production of growth hormone for use in the aquaculture industry to increase the speed of development and potentially reduce fishing pressure on wild stocks. This has resulted in dramatic growth enhancement in several species, including salmon, trout and tilapia. AquaBounty Technologies, a biotechnology company, have produced a salmon (called AquAdvantage salmon) that can mature in half the time as wild salmon. It obtained regulatory approval in 2015, the first non-plant GMO food to be commercialized. As of August 2017, GMO salmon is being sold in Canada. Sales in the US started in May 2021.", "title": "Animals" }, { "paragraph_id": 65, "text": "In biological research, transgenic fruit flies (Drosophila melanogaster) are model organisms used to study the effects of genetic changes on development. Fruit flies are often preferred over other animals due to their short life cycle and low maintenance requirements. They also have a relatively simple genome compared to many vertebrates, with typically only one copy of each gene, making phenotypic analysis easy. Drosophila have been used to study genetics and inheritance, embryonic development, learning, behavior, and aging. The discovery of transposons, in particular the p-element, in Drosophila provided an early method to add transgenes to their genome, although this has been taken over by more modern gene-editing techniques.", "title": "Animals" }, { "paragraph_id": 66, "text": "Due to their significance to human health, scientists are looking at ways to control mosquitoes through genetic engineering. Malaria-resistant mosquitoes have been developed in the laboratory by inserting a gene that reduces the development of the malaria parasite and then use homing endonucleases to rapidly spread that gene throughout the male population (known as a gene drive). This approach has been taken further by using the gene drive to spread a lethal gene. In trials the populations of Aedes aegypti mosquitoes, the single most important carrier of dengue fever and Zika virus, were reduced by between 80% and by 90%. Another approach is to use a sterile insect technique, whereby males genetically engineered to be sterile out compete viable males, to reduce population numbers.", "title": "Animals" }, { "paragraph_id": 67, "text": "Other insect pests that make attractive targets are moths. Diamondback moths cause US$4 to $5 billion of damage each year worldwide. The approach is similar to the sterile technique tested on mosquitoes, where males are transformed with a gene that prevents any females born from reaching maturity. They underwent field trials in 2017. Genetically modified moths have previously been released in field trials. In this case a strain of pink bollworm that were sterilized with radiation were genetically engineered to express a red fluorescent protein making it easier for researchers to monitor them.", "title": "Animals" }, { "paragraph_id": 68, "text": "Silkworm, the larvae stage of Bombyx mori, is an economically important insect in sericulture. Scientists are developing strategies to enhance silk quality and quantity. There is also potential to use the silk producing machinery to make other valuable proteins. Proteins currently developed to be expressed by silkworms include; human serum albumin, human collagen α-chain, mouse monoclonal antibody and N-glycanase. Silkworms have been created that produce spider silk, a stronger but extremely difficult to harvest silk, and even novel silks.", "title": "Animals" }, { "paragraph_id": 69, "text": "Systems have been developed to create transgenic organisms in a wide variety of other animals. Chickens have been genetically modified for a variety of purposes. This includes studying embryo development, preventing the transmission of bird flu and providing evolutionary insights using reverse engineering to recreate dinosaur-like phenotypes. A GM chicken that produces the drug Kanuma, an enzyme that treats a rare condition, in its egg passed US regulatory approval in 2015. Genetically modified frogs, in particular Xenopus laevis and Xenopus tropicalis, are used in developmental biology research. GM frogs can also be used as pollution sensors, especially for endocrine disrupting chemicals. There are proposals to use genetic engineering to control cane toads in Australia.", "title": "Animals" }, { "paragraph_id": 70, "text": "The nematode Caenorhabditis elegans is one of the major model organisms for researching molecular biology. RNA interference (RNAi) was discovered in C. elegans and could be induced by simply feeding them bacteria modified to express double stranded RNA. It is also relatively easy to produce stable transgenic nematodes and this along with RNAi are the major tools used in studying their genes. The most common use of transgenic nematodes has been studying gene expression and localization by attaching reporter genes. Transgenes can also be combined with RNAi techniques to rescue phenotypes, study gene function, image cell development in real time or control expression for different tissues or developmental stages. Transgenic nematodes have been used to study viruses, toxicology, diseases, and to detect environmental pollutants.", "title": "Animals" }, { "paragraph_id": 71, "text": "The gene responsible for albinism in sea cucumbers has been found and used to engineer white sea cucumbers, a rare delicacy. The technology also opens the way to investigate the genes responsible for some of the cucumbers more unusual traits, including hibernating in summer, eviscerating their intestines, and dissolving their bodies upon death. Flatworms have the ability to regenerate themselves from a single cell. Until 2017 there was no effective way to transform them, which hampered research. By using microinjection and radiation scientists have now created the first genetically modified flatworms. The bristle worm, a marine annelid, has been modified. It is of interest due to its reproductive cycle being synchronized with lunar phases, regeneration capacity and slow evolution rate. Cnidaria such as Hydra and the sea anemone Nematostella vectensis are attractive model organisms to study the evolution of immunity and certain developmental processes. Other animals that have been genetically modified include snails, geckos, turtles, crayfish, oysters, shrimp, clams, abalone and sponges.", "title": "Animals" }, { "paragraph_id": 72, "text": "Genetically modified organisms are regulated by government agencies. This applies to research as well as the release of genetically modified organisms, including crops and food. The development of a regulatory framework concerning genetic engineering began in 1975, at Asilomar, California. The Asilomar meeting recommended a set of guidelines regarding the cautious use of recombinant technology and any products resulting from that technology. The Cartagena Protocol on Biosafety was adopted on 29 January 2000 and entered into force on 11 September 2003. It is an international treaty that governs the transfer, handling, and use of genetically modified organisms. One hundred and fifty-seven countries are members of the Protocol and many use it as a reference point for their own regulations.", "title": "Regulation" }, { "paragraph_id": 73, "text": "Universities and research institutes generally have a special committee that is responsible for approving any experiments that involve genetic engineering. Many experiments also need permission from a national regulatory group or legislation. All staff must be trained in the use of GMOs and all laboratories must gain approval from their regulatory agency to work with GMOs. The legislation covering GMOs are often derived from regulations and guidelines in place for the non-GMO version of the organism, although they are more severe. There is a near-universal system for assessing the relative risks associated with GMOs and other agents to laboratory staff and the community. They are assigned to one of four risk categories based on their virulence, the severity of the disease, the mode of transmission, and the availability of preventive measures or treatments. There are four biosafety levels that a laboratory can fall into, ranging from level 1 (which is suitable for working with agents not associated with disease) to level 4 (working with life-threatening agents). Different countries use different nomenclature to describe the levels and can have different requirements for what can be done at each level.", "title": "Regulation" }, { "paragraph_id": 74, "text": "There are differences in the regulation for the release of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Regulation varies in a given country depending on the intended use of the products of the genetic engineering. For example, a crop not intended for food use is generally not reviewed by authorities responsible for food safety. Some nations have banned the release of GMOs or restricted their use, and others permit them with widely differing degrees of regulation. In 2016, thirty eight countries officially ban or prohibit the cultivation of GMOs and nine (Algeria, Bhutan, Kenya, Kyrgyzstan, Madagascar, Peru, Russia, Venezuela and Zimbabwe) ban their importation. Most countries that do not allow GMO cultivation do permit research using GMOs. Despite regulation, illegal releases have sometimes occurred, due to weakness of enforcement.", "title": "Regulation" }, { "paragraph_id": 75, "text": "The European Union (EU) differentiates between approval for cultivation within the EU and approval for import and processing. While only a few GMOs have been approved for cultivation in the EU a number of GMOs have been approved for import and processing. The cultivation of GMOs has triggered a debate about the market for GMOs in Europe. Depending on the coexistence regulations, incentives for cultivation of GM crops differ. The US policy does not focus on the process as much as other countries, looks at verifiable scientific risks and uses the concept of substantial equivalence. Whether gene edited organisms should be regulated the same as genetically modified organism is debated. USA regulations sees them as separate and does not regulate them under the same conditions, while in Europe a GMO is any organism created using genetic engineering techniques.", "title": "Regulation" }, { "paragraph_id": 76, "text": "One of the key issues concerning regulators is whether GM products should be labeled. The European Commission says that mandatory labeling and traceability are needed to allow for informed choice, avoid potential false advertising and facilitate the withdrawal of products if adverse effects on health or the environment are discovered. The American Medical Association and the American Association for the Advancement of Science say that absent scientific evidence of harm even voluntary labeling is misleading and will falsely alarm consumers. Labeling of GMO products in the marketplace is required in 64 countries. Labeling can be mandatory up to a threshold GM content level (which varies between countries) or voluntary. In Canada and the US labeling of GM food is voluntary, while in Europe all food (including processed food) or feed which contains greater than 0.9% of approved GMOs must be labeled. In 2014, sales of products that had been labeled as non-GMO grew 30 percent to $1.1 billion.", "title": "Regulation" }, { "paragraph_id": 77, "text": "There is controversy over GMOs, especially with regard to their release outside laboratory environments. The dispute involves consumers, producers, biotechnology companies, governmental regulators, non-governmental organizations, and scientists. Many of these concerns involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. These controversies have led to litigation, international trade disputes, and protests, and to restrictive regulation of commercial products in some countries. Most concerns are around the health and environmental effects of GMOs. These include whether they may provoke an allergic reaction, whether the transgenes could transfer to human cells, and whether genes not approved for human consumption could outcross into the food supply.", "title": "Controversy" }, { "paragraph_id": 78, "text": "There is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are much less likely than scientists to perceive GM foods as safe. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation.", "title": "Controversy" }, { "paragraph_id": 79, "text": "As late as the 1990s gene flow into wild populations was thought to be unlikely and rare, and if it were to occur, easily eradicated. It was thought that this would add no additional environmental costs or risks – no effects were expected other than those already caused by pesticide applications. However, in the decades since, several such examples have been observed. Gene flow between GM crops and compatible plants, along with increased use of broad-spectrum herbicides, can increase the risk of herbicide resistant weed populations. Debate over the extent and consequences of gene flow intensified in 2001 when a paper was published showing transgenes had been found in landrace maize in Mexico, the crop's center of diversity. Gene flow from GM crops to other organisms has been found to generally be lower than what would occur naturally. In order to address some of these concerns some GMOs have been developed with traits to help control their spread. To prevent the genetically modified salmon inadvertently breeding with wild salmon, all the fish raised for food are females, triploid, 99% are reproductively sterile, and raised in areas where escaped salmon could not survive. Bacteria have also been modified to depend on nutrients that cannot be found in nature, and genetic use restriction technology has been developed, though not yet marketed, that causes the second generation of GM plants to be sterile.", "title": "Controversy" }, { "paragraph_id": 80, "text": "Other environmental and agronomic concerns include a decrease in biodiversity, an increase in secondary pests (non-targeted pests) and evolution of resistant insect pests. In the areas of China and the US with Bt crops the overall biodiversity of insects has increased and the impact of secondary pests has been minimal. Resistance was found to be slow to evolve when best practice strategies were followed. The impact of Bt crops on beneficial non-target organisms became a public issue after a 1999 paper suggested they could be toxic to monarch butterflies. Follow up studies have since shown that the toxicity levels encountered in the field were not high enough to harm the larvae.", "title": "Controversy" }, { "paragraph_id": 81, "text": "Accusations that scientists are \"playing God\" and other religious issues have been ascribed to the technology from the beginning. With the ability to genetically engineer humans now possible there are ethical concerns over how far this technology should go, or if it should be used at all. Much debate revolves around where the line between treatment and enhancement is and whether the modifications should be inheritable. Other concerns include contamination of the non-genetically modified food supply, the rigor of the regulatory process, consolidation of control of the food supply in companies that make and sell GMOs, exaggeration of the benefits of genetic modification, or concerns over the use of herbicides with glyphosate. Other issues raised include the patenting of life and the use of intellectual property rights.", "title": "Controversy" }, { "paragraph_id": 82, "text": "There are large differences in consumer acceptance of GMOs, with Europeans more likely to view GM food negatively than North Americans. GMOs arrived on the scene as the public confidence in food safety, attributed to recent food scares such as Bovine spongiform encephalopathy and other scandals involving government regulation of products in Europe, was low. This along with campaigns run by various non-governmental organizations (NGO) have been very successful in blocking or limiting the use of GM crops. NGOs like the Organic Consumers Association, the Union of Concerned Scientists, Greenpeace and other groups have said that risks have not been adequately identified and managed and that there are unanswered questions regarding the potential long-term impact on human health from food derived from GMOs. They propose mandatory labeling or a moratorium on such products.", "title": "Controversy" } ]
A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with the most common being an organism altered in a way that "does not occur naturally by mating and/or natural recombination". A wide variety of organisms have been genetically modified (GM), from animals to plants and microorganisms. Genes have been transferred within the same species, across species, and even across kingdoms. New genes can be introduced, or endogenous genes can be enhanced, altered, or knocked out. Creating a genetically modified organism is a multi-step process. Genetic engineers must isolate the gene they wish to insert into the host organism and combine it with other genetic elements, including a promoter and terminator region and often a selectable marker. A number of techniques are available for inserting the isolated gene into the host genome. Recent advancements using genome editing techniques, notably CRISPR, have made the production of GMOs much simpler. Herbert Boyer and Stanley Cohen made the first genetically modified organism in 1973, a bacterium resistant to the antibiotic kanamycin. The first genetically modified animal, a mouse, was created in 1974 by Rudolf Jaenisch, and the first plant was produced in 1983. In 1994, the Flavr Savr tomato was released, the first commercialized genetically modified food. The first genetically modified animal to be commercialized was the GloFish (2003) and the first genetically modified animal to be approved for food use was the AquAdvantage salmon in 2015. Bacteria are the easiest organisms to engineer and have been used for research, food production, industrial protein purification, agriculture, and art. There is potential to use them for environmental purposes or as medicine. Fungi have been engineered with much the same goals. Viruses play an important role as vectors for inserting genetic information into other organisms. This use is especially relevant to human gene therapy. There are proposals to remove the virulent genes from viruses to create vaccines. Plants have been engineered for scientific research, to create new colors in plants, deliver vaccines, and to create enhanced crops. Genetically modified crops are publicly the most controversial GMOs, in spite of having the most human health and environmental benefits. The majority are engineered for herbicide tolerance or insect resistance. Golden rice has been engineered with three genes that increase its nutritional value. Other prospects for GM crops are as bioreactors for the production of biopharmaceuticals, biofuels, or medicines. Animals are generally much harder to transform and the vast majority are still at the research stage. Mammals are the best model organisms for humans, making ones genetically engineered to resemble serious human diseases important to the discovery and development of treatments. Human proteins expressed in mammals are more likely to be similar to their natural counterparts than those expressed in plants or microorganisms. Livestock is modified with the intention of improving economically important traits such as growth rate, quality of meat, milk composition, disease resistance, and survival. Genetically modified fish are used for scientific research, as pets, and as a food source. Genetic engineering has been proposed as a way to control mosquitos, a vector for many deadly diseases. Although human gene therapy is still relatively new, it has been used to treat genetic disorders such as severe combined immunodeficiency and Leber's congenital amaurosis. Many objections have been raised over the development of GMOs, particularly their commercialization. Many of these involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. Other concerns are the objectivity and rigor of regulatory authorities, contamination of non-genetically modified food, control of the food supply, patenting of life, and the use of intellectual property rights. Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, GM food safety is a leading issue with critics. Gene flow, impact on non-target organisms, and escape are the major environmental concerns. Countries have adopted regulatory measures to deal with these concerns. There are differences in the regulation for the release of GMOs between countries, with some of the most marked differences occurring between the US and Europe. Key issues concerning regulators include whether GM food should be labeled and the status of gene-edited organisms.
2001-07-15T21:49:35Z
2023-12-07T02:48:31Z
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https://en.wikipedia.org/wiki/Genetically_modified_organism
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Ghent
Ghent (Dutch: Gent [ɣɛnt] ; French: Gand [ɡɑ̃] ; historically known as Gaunt in English) is a city and a municipality in the Flemish Region of Belgium. It is the capital and largest city of the East Flanders province, and the third largest in the country, after Brussels and Antwerp. It is a port and university city. The city originally started as a settlement at the confluence of the Rivers Scheldt and Leie and in the Late Middle Ages became one of the largest and richest cities of northern Europe, with some 50,000 people in 1300. After the late 16th century Ghent became a less important city, resulting in an extremely well-preserved historic centre, that now makes Ghent an important destination of tourism. The municipality comprises the city of Ghent proper and the surrounding suburbs of Afsnee, Desteldonk, Drongen, Gentbrugge, Ledeberg, Mariakerke, Mendonk, Oostakker, Sint-Amandsberg, Sint-Denijs-Westrem, Sint-Kruis-Winkel, Wondelgem and Zwijnaarde. With 262,219 inhabitants at the beginning of 2019, Ghent is Belgium's second largest municipality by number of inhabitants. The metropolitan area, including the outer commuter zone, covers an area of 1,205 km (465 sq mi) and had a total population of 560,522 as of 1 January 2018, which ranks it as the fourth most populous in Belgium. The current mayor of Ghent is Mathias De Clercq (Open Vld). The ten-day-long Ghent Festival (Gentse Feesten) is held every year and attended by about 1–1.5 million visitors. Archaeological evidence shows human presence around the confluence of the Scheldt and the Leie going back as far as the Stone Age and the Iron Age. Most historians believe that the older name for Ghent, 'Ganda', is derived from the Celtic word ganda, which means confluence. Other sources connect its name with an obscure deity named Gontia. There are no written records of the Roman period, but archaeological research confirms that the Gent area continued to be inhabited. When the Franks invaded the Roman territories from the end of the 4th century and well into the 5th century, they brought their language with them, and Celtic and Latin were replaced by Old Dutch. Around 650, Saint Amand founded two abbeys in Ghent: St. Peter's (Blandinium) and St. Bavo's Abbey. Around 800, Louis the Pious, son of Charlemagne, appointed Einhard, the biographer of Charlemagne, abbot of both abbeys. The city grew from several nuclei, the abbeys, and a commercial centre. However, in 851 and 879 the city was plundered by Vikings. Under the protection of the County of Flanders the city recovered and flourished from the 11th century, growing to become a small city-state. By the 13th century, Ghent was the biggest city in Europe north of the Alps after Paris; it was bigger than Cologne or Moscow. Up to 65,000 people lived within the city walls. The belfry and the towers of the St. Bavo's Cathedral and St. Nicholas' Church are just a few examples of the skyline of the period. The rivers flowed in an area where much land was periodically flooded. These rich grass 'meersen' ("water-meadows": a word related to the English 'marsh') were ideally suited for herding sheep, the wool of which was used to make cloth. Ghent was the leading city for cloth during the Middle Ages. The wool industry, originally established at Bruges, created the first European industrialized zone in Ghent in the High Middle Ages. The mercantile zone was so highly developed that wool had to be imported from Scotland and England, which led to Flanders' good relationship with them. However, during the Hundred Years' War, trade with England suffered significantly. Ghent was the birthplace of John of Gaunt, Duke of Lancaster. The city recovered in the 15th century when Flanders was united with neighbouring provinces under the Dukes of Burgundy. High taxes led to a rebellion and eventually to the Battle of Gavere in 1453, in which Ghent suffered a terrible defeat at the hands of Philip the Good. Around this time the centre of political and social importance in the Low Countries started to shift from Flanders (Bruges–Ghent) to Brabant (Antwerp–Brussels), although Ghent continued to play an important role. With Bruges, the city led two revolts against Maximilian of Austria, the first monarch of the House of Habsburg to rule Flanders. In 1500, Juana of Castile gave birth to Charles V, who became Holy Roman Emperor and King of Spain. Although native to Ghent, he punished the city after the 1539 Revolt of Ghent and obliged the city's nobles to walk in front of the Emperor barefoot with a noose (Dutch: "strop") around the neck; since this incident, the people of Ghent have been called "Stroppendragers" (noose bearers). St. Bavo's Abbey (not to be confused with the nearby St. Bavo's Cathedral) was abolished, torn down, and replaced with a fortress for Royal Spanish troops. Only a small portion of the abbey was spared demolition. The late 16th and 17th centuries brought devastation because of the Eighty Years' War. The war ended the role of Ghent as a centre of international importance. In 1745, the city was captured by French forces during the War of the Austrian Succession before being returned to the Empire of Austria under the House of Habsburg following the Treaty of Aix-la-Chapelle in 1748. This part of Flanders became known as the Austrian Netherlands until the exile of the French Emperor Napoleon I, the end of the French Revolutionary and later Napoleonic Wars, and the peace treaties arrived at by the Congress of Vienna in 1815. In the 18th and 19th centuries, Ghent's textile industry flourished again. Lieven Bauwens, having smuggled the industrial and factory machine plans out of England, introduced the first mechanical weaving machine on the European continent in 1800. The Treaty of Ghent, negotiated here and adopted on Christmas Eve 1814, formally ended the War of 1812 between Great Britain and the United States (the North American phase of the Napoleonic Wars). After the Battle of Waterloo, Ghent and Flanders, previously ruled from the House of Habsburg in Vienna as the Austrian Netherlands, became a part of the United Kingdom of the Netherlands with the northern Dutch for 15 years. In this period, Ghent established its own university (1816) and a new connection to the sea (1824–27). After the Belgian Revolution, with the loss of port access to the sea for more than a decade, the local economy collapsed, and the first Belgian trade union originated in Ghent. In 1913 there was a world exhibition in Ghent. As a preparation for these festivities, the Sint-Pieters railway station was completed in 1912. Ghent was occupied by the Germans in both World Wars but escaped severe destruction. The life of the people and the German invaders in Ghent during World War I is described by H. Wandt in "etappenleven te Gent". In World War II the city was liberated by the British 7th "Desert Rats" Armoured Division and local Belgian fighters on 6 September 1944, with the northern suburbs and the industrial area cleared over the following days by the 15th (Scottish) Infantry Division. After the fusions of municipalities in 1965 and 1977, the city is made up of: The climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round. According to the Köppen climate classification system, Ghent has a marine west coast climate, abbreviated "Cfb" on climate maps. Ghent is home to many people of foreign origin and immigrants. The 2020 census revealed that 35.5% of the inhabitants had roots outside of Belgium and 15.3% had a non-Belgian nationality. Many neighbourhoods already have a minority-majority population, primarily in the north, east, and west of the city and some pockets in the south. Some examples are Brugse Poort, Dampoort, Rabot, Ledeberg, Nieuw Gent/UZ and the area around Sleepstraat (known for its many Turkish restaurants). Much of the city's medieval architecture remains intact and is remarkably well preserved and restored. Its centre is a carfree area. Highlights are St. Bavo's Cathedral with the Ghent Altarpiece, the belfry, the Gravensteen castle, and the splendid architecture along the old Graslei harbour. Ghent has established a blend between comfort of living and history; it is not a city-museum. The city of Ghent also houses three béguinages and numerous churches including St. Jacob's Church, St. Nicholas' Church, St. Michael's Church and St. Stefanus' Church. In the 19th century Ghent's most famous architect, Louis Roelandt, built the university hall Aula, the opera house, and the main courthouse. Highlights of modern architecture are the university buildings (the Boekentoren or Book Tower) by Henry Van de Velde. There are also a few theatres from diverse periods. The beguinages, as well as the belfry and adjacent cloth hall, were recognized by UNESCO as World Heritage Sites in 1998 and 1999. The Zebrastraat, a social experiment in which an entirely renovated site unites living, economy, and culture, can also be found in Ghent. Campo Santo is a famous Catholic burial site of the nobility and artists. One of the more notable pieces of contemporary architecture in Ghent is De Krook, the new central library and media center, a collaboration between local firm Coussée and Goris and Catalan firm RCR Arquitectos. Important museums in Ghent are the Museum voor Schone Kunsten (Museum of Fine Arts), with paintings by Hieronymus Bosch, Peter Paul Rubens, and many Flemish masters; the SMAK or Stedelijk Museum voor Actuele Kunst (City Museum for Contemporary Art), with works of the 20th century, including Joseph Beuys and Andy Warhol; and the Design Museum Gent with masterpieces of Victor Horta and Le Corbusier. The Huis van Alijn (House of the Alijn family) was originally a beguinage and is now a museum for folk art where theatre and puppet shows for children are presented. The Museum voor Industriële Archeologie en Textiel or MIAT displays the industrial strength of Ghent with recreations of workshops and stores from the 1800s and original spinning and weaving machines that remain from the time when the building was a weaving mill. The Ghent City Museum (Stadsmuseum, abbreviated STAM), is committed to recording and explaining the city's past and its inhabitants, and to preserving the present for future generations. In Ghent and other regions of East Flanders, bakeries sell a donut-shaped bun called a "mastel" (plural "mastellen"), which is basically a bagel. "Mastellen" are also called "Saint Hubert bread", because, on the Saint's feast day, which is 3 November, the bakers bring their batches to the early Mass to be blessed. Traditionally, it was thought that blessed mastellen immunized against rabies. Other local delicacies are the praline chocolates from local producers such as Leonidas, the cuberdons or 'neuzekes' ('noses'), cone-shaped purple jelly-filled candies, 'babelutten' ('babblers'), hard butterscotch-like candy, and of course, on the more fiery side, the famous 'Tierenteyn', a hot but refined mustard that has some affinity to French 'Dijon' mustard. Stoverij is a classic Flemish meat stew, preferably made with a generous addition of brown 'Trappist' (strong abbey beer) and served with French fries. 'Waterzooi' is a local stew originally made from freshwater fish caught in the rivers and creeks of Ghent, but nowadays often made with chicken instead of fish. It is usually served nouvelle-cuisine-style and supplemented by a large pot on the side. The city promotes a meat-free day on Thursdays called Donderdag Veggiedag with vegetarian food being promoted in public canteens for civil servants and elected councillors, in all city-funded schools, and promotion of vegetarian eating options in town (through the distribution of "veggie street maps"). This campaign is linked to the recognition of the detrimental environmental effects of meat production, which the United Nations' Food and Agriculture Organization has established to represent nearly one-fifth of global greenhouse gas emissions. The traditional confectionery is the cuberdon (also known as neuzekes or little noses). These are conical sweets with a soft centre, usually raspberry but other flavours can be found on the many street stalls around the city. Between 2011 and 2015, a feud between two local vendors made international news. The city is host to some big cultural events such as the Ghent Festival, the International Film Festival of Ghent (with the World Soundtrack Awards) and the Gent Festival van Vlaanderen [nl]. Also, every five years, an extensive botanical exhibition (Gentse Floraliën) takes place in Flanders Expo in Ghent, attracting numerous visitors to the city. The Ghent Festival (Gentse Feesten in Dutch) is an annual festival that lasts for ten days. It has been held for more than 50 years (since 1969) and is attended by about 1–1.5 million visitors. It did not take place in 2020 and 2021 due to the COVID-19 pandemic in Belgium, being held again in the summer of 2022, after a two-year break. The Festival of Flanders had its 50th celebration in 2008. In Ghent, it opens with the OdeGand City festivities that take place on the second Saturday of September. Some 50 concerts take place in diverse locations throughout the medieval inner city and some 250 international artists perform. Ghent co-hosted the 2021 World Choir Games together with Antwerp. Organised by the Interkultur Foundation, the World Choir Games is the biggest choral competition and festival in the world. Ghent has been chosen as the 2024 European Youth Capital by the European Youth Forum. The numerous parks in the city can also be considered tourist attractions. Most notably, Ghent boasts a nature reserve (Bourgoyen-Ossemeersen, 230 hectares (570 acres)) and a recreation park (Blaarmeersen, 87 hectares; 215 acres). The port of Ghent, in the north of the city, is the third-largest port of Belgium. It is accessed by the Ghent–Terneuzen Canal, which ends near the Dutch port of Terneuzen on the Western Scheldt. The port houses, among others, large companies like ArcelorMittal, Volvo Cars, Volvo Trucks, Volvo Parts, Honda, and Stora Enso. The Ghent University and several research-oriented companies, such as Ablynx, Innogenetics, Cropdesign, and Bayer Cropscience, are situated in the central and southern part of the city. As the largest city in East Flanders, Ghent has many hospitals, schools, and shopping streets. Flanders Expo, the biggest event hall in Flanders and the second biggest in Belgium, is also located in Ghent. Tourism is becoming a major employer in the local area. As one of the largest cities in Belgium, Ghent has a highly developed transport system. By car the city is accessible via two motorways: In addition, Ghent also has two ringways: Five railway stations can be found in the municipality of Ghent: Ghent has an extensive network of public transport lines, operated by De Lijn. Apart from the city buses mentioned above, Ghent also has numerous regional bus lines connecting it to towns and villages across the province of East Flanders. All of these buses stop in at least one of the city's regional bus hubs at either Sint-Pieters Station, Dampoort Station, Zuid or Rabot. International buses connecting Ghent to other European destinations are usually found at the Dampoort Station. A couple of private bus companies such as Eurolines, Megabus and Flixbus operate from the Dampoort bus hub. Buses to and from Belgium's first (Brussels Airport) and second airport (Brussels South Charleroi Airport) are operated by Flibco, and can be found at the rear exit of the Sint-Pieters Station. Ghent has the largest designated cyclist area in Europe, with nearly 400 kilometres (250 mi) of cycle paths and more than 700 one-way streets, where bikes are allowed to go against the traffic. It also boasts Belgium's first bicycle boulevard, where cars are considered 'guests' and must stay behind cyclists. In 2013, it began doing on-street surveys of bicycles, adding bicycle parking racks in neighbourhoods where they were needed. In 2017, the city changed traffic circulation patterns to favour cycling. The switch was done over the course of a single weekend, changing traffic circulation on over 80 streets and 2500 road signs. It expanded the car-free zone in the historic city center more than twofold. It also put in radial barriers to car traffic, thus shifting it onto the inner ring road. More cyclists means a higher demand for bicycle parking stations. In 2010, the plans to renovate Gent-Sint-Pieters railway station, included 10,000 bicycle parking spots. In 2020, several sections of the underground parking facilities have been built, and the targets have been adjusted to a total of 17,000 parking spots. In the Belgian first football division Ghent is represented by K.A.A. Gent, who became Belgian football champions for the first time in its history in 2015. Another Ghent football club is KRC Gent-Zeehaven, playing in the Belgian fourth division. A football match at the 1920 Summer Olympics was held in Ghent. The Six Days of Ghent, a six-day track cycling race, is held annually, taking place in the Kuipke velodrome in Ghent. In road cycling, the city hosts the start and finish of the Omloop Het Nieuwsblad, the traditional opening race of the cobbled classics season. It also lends its name to another cobbled classic, Gent–Wevelgem, although the race now starts in the nearby city of Deinze. The city hosts an annual athletics IAAF event in the Flanders Sports Arena: the Indoor Flanders meeting where two-time Olympic champion Hicham El Guerrouj set an indoor world record of 3:48.45 in the mile run in 1997. The Flanders Sports Arena was host to the 2015 Davis Cup Final between Belgium and Great Britain. Ghent is twinned with:
[ { "paragraph_id": 0, "text": "Ghent (Dutch: Gent [ɣɛnt] ; French: Gand [ɡɑ̃] ; historically known as Gaunt in English) is a city and a municipality in the Flemish Region of Belgium. It is the capital and largest city of the East Flanders province, and the third largest in the country, after Brussels and Antwerp. It is a port and university city.", "title": "" }, { "paragraph_id": 1, "text": "The city originally started as a settlement at the confluence of the Rivers Scheldt and Leie and in the Late Middle Ages became one of the largest and richest cities of northern Europe, with some 50,000 people in 1300. After the late 16th century Ghent became a less important city, resulting in an extremely well-preserved historic centre, that now makes Ghent an important destination of tourism.", "title": "" }, { "paragraph_id": 2, "text": "The municipality comprises the city of Ghent proper and the surrounding suburbs of Afsnee, Desteldonk, Drongen, Gentbrugge, Ledeberg, Mariakerke, Mendonk, Oostakker, Sint-Amandsberg, Sint-Denijs-Westrem, Sint-Kruis-Winkel, Wondelgem and Zwijnaarde. With 262,219 inhabitants at the beginning of 2019, Ghent is Belgium's second largest municipality by number of inhabitants. The metropolitan area, including the outer commuter zone, covers an area of 1,205 km (465 sq mi) and had a total population of 560,522 as of 1 January 2018, which ranks it as the fourth most populous in Belgium. The current mayor of Ghent is Mathias De Clercq (Open Vld).", "title": "" }, { "paragraph_id": 3, "text": "The ten-day-long Ghent Festival (Gentse Feesten) is held every year and attended by about 1–1.5 million visitors.", "title": "" }, { "paragraph_id": 4, "text": "Archaeological evidence shows human presence around the confluence of the Scheldt and the Leie going back as far as the Stone Age and the Iron Age.", "title": "History" }, { "paragraph_id": 5, "text": "Most historians believe that the older name for Ghent, 'Ganda', is derived from the Celtic word ganda, which means confluence. Other sources connect its name with an obscure deity named Gontia.", "title": "History" }, { "paragraph_id": 6, "text": "There are no written records of the Roman period, but archaeological research confirms that the Gent area continued to be inhabited.", "title": "History" }, { "paragraph_id": 7, "text": "When the Franks invaded the Roman territories from the end of the 4th century and well into the 5th century, they brought their language with them, and Celtic and Latin were replaced by Old Dutch.", "title": "History" }, { "paragraph_id": 8, "text": "Around 650, Saint Amand founded two abbeys in Ghent: St. Peter's (Blandinium) and St. Bavo's Abbey. Around 800, Louis the Pious, son of Charlemagne, appointed Einhard, the biographer of Charlemagne, abbot of both abbeys. The city grew from several nuclei, the abbeys, and a commercial centre. However, in 851 and 879 the city was plundered by Vikings.", "title": "History" }, { "paragraph_id": 9, "text": "Under the protection of the County of Flanders the city recovered and flourished from the 11th century, growing to become a small city-state. By the 13th century, Ghent was the biggest city in Europe north of the Alps after Paris; it was bigger than Cologne or Moscow. Up to 65,000 people lived within the city walls. The belfry and the towers of the St. Bavo's Cathedral and St. Nicholas' Church are just a few examples of the skyline of the period.", "title": "History" }, { "paragraph_id": 10, "text": "The rivers flowed in an area where much land was periodically flooded. These rich grass 'meersen' (\"water-meadows\": a word related to the English 'marsh') were ideally suited for herding sheep, the wool of which was used to make cloth. Ghent was the leading city for cloth during the Middle Ages.", "title": "History" }, { "paragraph_id": 11, "text": "The wool industry, originally established at Bruges, created the first European industrialized zone in Ghent in the High Middle Ages. The mercantile zone was so highly developed that wool had to be imported from Scotland and England, which led to Flanders' good relationship with them. However, during the Hundred Years' War, trade with England suffered significantly. Ghent was the birthplace of John of Gaunt, Duke of Lancaster.", "title": "History" }, { "paragraph_id": 12, "text": "The city recovered in the 15th century when Flanders was united with neighbouring provinces under the Dukes of Burgundy. High taxes led to a rebellion and eventually to the Battle of Gavere in 1453, in which Ghent suffered a terrible defeat at the hands of Philip the Good. Around this time the centre of political and social importance in the Low Countries started to shift from Flanders (Bruges–Ghent) to Brabant (Antwerp–Brussels), although Ghent continued to play an important role. With Bruges, the city led two revolts against Maximilian of Austria, the first monarch of the House of Habsburg to rule Flanders.", "title": "History" }, { "paragraph_id": 13, "text": "In 1500, Juana of Castile gave birth to Charles V, who became Holy Roman Emperor and King of Spain. Although native to Ghent, he punished the city after the 1539 Revolt of Ghent and obliged the city's nobles to walk in front of the Emperor barefoot with a noose (Dutch: \"strop\") around the neck; since this incident, the people of Ghent have been called \"Stroppendragers\" (noose bearers). St. Bavo's Abbey (not to be confused with the nearby St. Bavo's Cathedral) was abolished, torn down, and replaced with a fortress for Royal Spanish troops. Only a small portion of the abbey was spared demolition.", "title": "History" }, { "paragraph_id": 14, "text": "The late 16th and 17th centuries brought devastation because of the Eighty Years' War. The war ended the role of Ghent as a centre of international importance. In 1745, the city was captured by French forces during the War of the Austrian Succession before being returned to the Empire of Austria under the House of Habsburg following the Treaty of Aix-la-Chapelle in 1748. This part of Flanders became known as the Austrian Netherlands until the exile of the French Emperor Napoleon I, the end of the French Revolutionary and later Napoleonic Wars, and the peace treaties arrived at by the Congress of Vienna in 1815.", "title": "History" }, { "paragraph_id": 15, "text": "In the 18th and 19th centuries, Ghent's textile industry flourished again. Lieven Bauwens, having smuggled the industrial and factory machine plans out of England, introduced the first mechanical weaving machine on the European continent in 1800.", "title": "History" }, { "paragraph_id": 16, "text": "The Treaty of Ghent, negotiated here and adopted on Christmas Eve 1814, formally ended the War of 1812 between Great Britain and the United States (the North American phase of the Napoleonic Wars). After the Battle of Waterloo, Ghent and Flanders, previously ruled from the House of Habsburg in Vienna as the Austrian Netherlands, became a part of the United Kingdom of the Netherlands with the northern Dutch for 15 years. In this period, Ghent established its own university (1816) and a new connection to the sea (1824–27).", "title": "History" }, { "paragraph_id": 17, "text": "After the Belgian Revolution, with the loss of port access to the sea for more than a decade, the local economy collapsed, and the first Belgian trade union originated in Ghent. In 1913 there was a world exhibition in Ghent. As a preparation for these festivities, the Sint-Pieters railway station was completed in 1912.", "title": "History" }, { "paragraph_id": 18, "text": "Ghent was occupied by the Germans in both World Wars but escaped severe destruction. The life of the people and the German invaders in Ghent during World War I is described by H. Wandt in \"etappenleven te Gent\". In World War II the city was liberated by the British 7th \"Desert Rats\" Armoured Division and local Belgian fighters on 6 September 1944, with the northern suburbs and the industrial area cleared over the following days by the 15th (Scottish) Infantry Division.", "title": "History" }, { "paragraph_id": 19, "text": "After the fusions of municipalities in 1965 and 1977, the city is made up of:", "title": "Geography" }, { "paragraph_id": 20, "text": "The climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round. According to the Köppen climate classification system, Ghent has a marine west coast climate, abbreviated \"Cfb\" on climate maps.", "title": "Geography" }, { "paragraph_id": 21, "text": "Ghent is home to many people of foreign origin and immigrants. The 2020 census revealed that 35.5% of the inhabitants had roots outside of Belgium and 15.3% had a non-Belgian nationality. Many neighbourhoods already have a minority-majority population, primarily in the north, east, and west of the city and some pockets in the south. Some examples are Brugse Poort, Dampoort, Rabot, Ledeberg, Nieuw Gent/UZ and the area around Sleepstraat (known for its many Turkish restaurants).", "title": "Demographics" }, { "paragraph_id": 22, "text": "Much of the city's medieval architecture remains intact and is remarkably well preserved and restored. Its centre is a carfree area. Highlights are St. Bavo's Cathedral with the Ghent Altarpiece, the belfry, the Gravensteen castle, and the splendid architecture along the old Graslei harbour. Ghent has established a blend between comfort of living and history; it is not a city-museum. The city of Ghent also houses three béguinages and numerous churches including St. Jacob's Church, St. Nicholas' Church, St. Michael's Church and St. Stefanus' Church.", "title": "Tourism" }, { "paragraph_id": 23, "text": "In the 19th century Ghent's most famous architect, Louis Roelandt, built the university hall Aula, the opera house, and the main courthouse. Highlights of modern architecture are the university buildings (the Boekentoren or Book Tower) by Henry Van de Velde. There are also a few theatres from diverse periods.", "title": "Tourism" }, { "paragraph_id": 24, "text": "The beguinages, as well as the belfry and adjacent cloth hall, were recognized by UNESCO as World Heritage Sites in 1998 and 1999.", "title": "Tourism" }, { "paragraph_id": 25, "text": "The Zebrastraat, a social experiment in which an entirely renovated site unites living, economy, and culture, can also be found in Ghent.", "title": "Tourism" }, { "paragraph_id": 26, "text": "Campo Santo is a famous Catholic burial site of the nobility and artists.", "title": "Tourism" }, { "paragraph_id": 27, "text": "One of the more notable pieces of contemporary architecture in Ghent is De Krook, the new central library and media center, a collaboration between local firm Coussée and Goris and Catalan firm RCR Arquitectos.", "title": "Tourism" }, { "paragraph_id": 28, "text": "Important museums in Ghent are the Museum voor Schone Kunsten (Museum of Fine Arts), with paintings by Hieronymus Bosch, Peter Paul Rubens, and many Flemish masters; the SMAK or Stedelijk Museum voor Actuele Kunst (City Museum for Contemporary Art), with works of the 20th century, including Joseph Beuys and Andy Warhol; and the Design Museum Gent with masterpieces of Victor Horta and Le Corbusier. The Huis van Alijn (House of the Alijn family) was originally a beguinage and is now a museum for folk art where theatre and puppet shows for children are presented. The Museum voor Industriële Archeologie en Textiel or MIAT displays the industrial strength of Ghent with recreations of workshops and stores from the 1800s and original spinning and weaving machines that remain from the time when the building was a weaving mill. The Ghent City Museum (Stadsmuseum, abbreviated STAM), is committed to recording and explaining the city's past and its inhabitants, and to preserving the present for future generations.", "title": "Tourism" }, { "paragraph_id": 29, "text": "In Ghent and other regions of East Flanders, bakeries sell a donut-shaped bun called a \"mastel\" (plural \"mastellen\"), which is basically a bagel. \"Mastellen\" are also called \"Saint Hubert bread\", because, on the Saint's feast day, which is 3 November, the bakers bring their batches to the early Mass to be blessed. Traditionally, it was thought that blessed mastellen immunized against rabies.", "title": "Tourism" }, { "paragraph_id": 30, "text": "Other local delicacies are the praline chocolates from local producers such as Leonidas, the cuberdons or 'neuzekes' ('noses'), cone-shaped purple jelly-filled candies, 'babelutten' ('babblers'), hard butterscotch-like candy, and of course, on the more fiery side, the famous 'Tierenteyn', a hot but refined mustard that has some affinity to French 'Dijon' mustard.", "title": "Tourism" }, { "paragraph_id": 31, "text": "Stoverij is a classic Flemish meat stew, preferably made with a generous addition of brown 'Trappist' (strong abbey beer) and served with French fries. 'Waterzooi' is a local stew originally made from freshwater fish caught in the rivers and creeks of Ghent, but nowadays often made with chicken instead of fish. It is usually served nouvelle-cuisine-style and supplemented by a large pot on the side.", "title": "Tourism" }, { "paragraph_id": 32, "text": "The city promotes a meat-free day on Thursdays called Donderdag Veggiedag with vegetarian food being promoted in public canteens for civil servants and elected councillors, in all city-funded schools, and promotion of vegetarian eating options in town (through the distribution of \"veggie street maps\"). This campaign is linked to the recognition of the detrimental environmental effects of meat production, which the United Nations' Food and Agriculture Organization has established to represent nearly one-fifth of global greenhouse gas emissions.", "title": "Tourism" }, { "paragraph_id": 33, "text": "The traditional confectionery is the cuberdon (also known as neuzekes or little noses). These are conical sweets with a soft centre, usually raspberry but other flavours can be found on the many street stalls around the city. Between 2011 and 2015, a feud between two local vendors made international news.", "title": "Tourism" }, { "paragraph_id": 34, "text": "The city is host to some big cultural events such as the Ghent Festival, the International Film Festival of Ghent (with the World Soundtrack Awards) and the Gent Festival van Vlaanderen [nl]. Also, every five years, an extensive botanical exhibition (Gentse Floraliën) takes place in Flanders Expo in Ghent, attracting numerous visitors to the city.", "title": "Tourism" }, { "paragraph_id": 35, "text": "The Ghent Festival (Gentse Feesten in Dutch) is an annual festival that lasts for ten days. It has been held for more than 50 years (since 1969) and is attended by about 1–1.5 million visitors. It did not take place in 2020 and 2021 due to the COVID-19 pandemic in Belgium, being held again in the summer of 2022, after a two-year break.", "title": "Tourism" }, { "paragraph_id": 36, "text": "The Festival of Flanders had its 50th celebration in 2008. In Ghent, it opens with the OdeGand City festivities that take place on the second Saturday of September. Some 50 concerts take place in diverse locations throughout the medieval inner city and some 250 international artists perform.", "title": "Tourism" }, { "paragraph_id": 37, "text": "Ghent co-hosted the 2021 World Choir Games together with Antwerp. Organised by the Interkultur Foundation, the World Choir Games is the biggest choral competition and festival in the world.", "title": "Tourism" }, { "paragraph_id": 38, "text": "Ghent has been chosen as the 2024 European Youth Capital by the European Youth Forum.", "title": "Tourism" }, { "paragraph_id": 39, "text": "The numerous parks in the city can also be considered tourist attractions. Most notably, Ghent boasts a nature reserve (Bourgoyen-Ossemeersen, 230 hectares (570 acres)) and a recreation park (Blaarmeersen, 87 hectares; 215 acres).", "title": "Tourism" }, { "paragraph_id": 40, "text": "The port of Ghent, in the north of the city, is the third-largest port of Belgium. It is accessed by the Ghent–Terneuzen Canal, which ends near the Dutch port of Terneuzen on the Western Scheldt. The port houses, among others, large companies like ArcelorMittal, Volvo Cars, Volvo Trucks, Volvo Parts, Honda, and Stora Enso.", "title": "Economy" }, { "paragraph_id": 41, "text": "The Ghent University and several research-oriented companies, such as Ablynx, Innogenetics, Cropdesign, and Bayer Cropscience, are situated in the central and southern part of the city.", "title": "Economy" }, { "paragraph_id": 42, "text": "As the largest city in East Flanders, Ghent has many hospitals, schools, and shopping streets. Flanders Expo, the biggest event hall in Flanders and the second biggest in Belgium, is also located in Ghent. Tourism is becoming a major employer in the local area.", "title": "Economy" }, { "paragraph_id": 43, "text": "As one of the largest cities in Belgium, Ghent has a highly developed transport system.", "title": "Transport" }, { "paragraph_id": 44, "text": "By car the city is accessible via two motorways:", "title": "Transport" }, { "paragraph_id": 45, "text": "In addition, Ghent also has two ringways:", "title": "Transport" }, { "paragraph_id": 46, "text": "Five railway stations can be found in the municipality of Ghent:", "title": "Transport" }, { "paragraph_id": 47, "text": "Ghent has an extensive network of public transport lines, operated by De Lijn.", "title": "Transport" }, { "paragraph_id": 48, "text": "Apart from the city buses mentioned above, Ghent also has numerous regional bus lines connecting it to towns and villages across the province of East Flanders. All of these buses stop in at least one of the city's regional bus hubs at either Sint-Pieters Station, Dampoort Station, Zuid or Rabot.", "title": "Transport" }, { "paragraph_id": 49, "text": "International buses connecting Ghent to other European destinations are usually found at the Dampoort Station. A couple of private bus companies such as Eurolines, Megabus and Flixbus operate from the Dampoort bus hub.", "title": "Transport" }, { "paragraph_id": 50, "text": "Buses to and from Belgium's first (Brussels Airport) and second airport (Brussels South Charleroi Airport) are operated by Flibco, and can be found at the rear exit of the Sint-Pieters Station.", "title": "Transport" }, { "paragraph_id": 51, "text": "Ghent has the largest designated cyclist area in Europe, with nearly 400 kilometres (250 mi) of cycle paths and more than 700 one-way streets, where bikes are allowed to go against the traffic. It also boasts Belgium's first bicycle boulevard, where cars are considered 'guests' and must stay behind cyclists. In 2013, it began doing on-street surveys of bicycles, adding bicycle parking racks in neighbourhoods where they were needed. In 2017, the city changed traffic circulation patterns to favour cycling. The switch was done over the course of a single weekend, changing traffic circulation on over 80 streets and 2500 road signs. It expanded the car-free zone in the historic city center more than twofold. It also put in radial barriers to car traffic, thus shifting it onto the inner ring road.", "title": "Transport" }, { "paragraph_id": 52, "text": "More cyclists means a higher demand for bicycle parking stations. In 2010, the plans to renovate Gent-Sint-Pieters railway station, included 10,000 bicycle parking spots. In 2020, several sections of the underground parking facilities have been built, and the targets have been adjusted to a total of 17,000 parking spots.", "title": "Transport" }, { "paragraph_id": 53, "text": "In the Belgian first football division Ghent is represented by K.A.A. Gent, who became Belgian football champions for the first time in its history in 2015. Another Ghent football club is KRC Gent-Zeehaven, playing in the Belgian fourth division. A football match at the 1920 Summer Olympics was held in Ghent.", "title": "Sports" }, { "paragraph_id": 54, "text": "The Six Days of Ghent, a six-day track cycling race, is held annually, taking place in the Kuipke velodrome in Ghent. In road cycling, the city hosts the start and finish of the Omloop Het Nieuwsblad, the traditional opening race of the cobbled classics season. It also lends its name to another cobbled classic, Gent–Wevelgem, although the race now starts in the nearby city of Deinze.", "title": "Sports" }, { "paragraph_id": 55, "text": "The city hosts an annual athletics IAAF event in the Flanders Sports Arena: the Indoor Flanders meeting where two-time Olympic champion Hicham El Guerrouj set an indoor world record of 3:48.45 in the mile run in 1997.", "title": "Sports" }, { "paragraph_id": 56, "text": "The Flanders Sports Arena was host to the 2015 Davis Cup Final between Belgium and Great Britain.", "title": "Sports" }, { "paragraph_id": 57, "text": "", "title": "Notable people" }, { "paragraph_id": 58, "text": "Ghent is twinned with:", "title": "International relations" } ]
Ghent is a city and a municipality in the Flemish Region of Belgium. It is the capital and largest city of the East Flanders province, and the third largest in the country, after Brussels and Antwerp. It is a port and university city. The city originally started as a settlement at the confluence of the Rivers Scheldt and Leie and in the Late Middle Ages became one of the largest and richest cities of northern Europe, with some 50,000 people in 1300. After the late 16th century Ghent became a less important city, resulting in an extremely well-preserved historic centre, that now makes Ghent an important destination of tourism. The municipality comprises the city of Ghent proper and the surrounding suburbs of Afsnee, Desteldonk, Drongen, Gentbrugge, Ledeberg, Mariakerke, Mendonk, Oostakker, Sint-Amandsberg, Sint-Denijs-Westrem, Sint-Kruis-Winkel, Wondelgem and Zwijnaarde. With 262,219 inhabitants at the beginning of 2019, Ghent is Belgium's second largest municipality by number of inhabitants. The metropolitan area, including the outer commuter zone, covers an area of 1,205 km2 (465 sq mi) and had a total population of 560,522 as of 1 January 2018, which ranks it as the fourth most populous in Belgium. The current mayor of Ghent is Mathias De Clercq. The ten-day-long Ghent Festival is held every year and attended by about 1–1.5 million visitors.
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https://en.wikipedia.org/wiki/Ghent
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Guadeloupe
Guadeloupe (/ˌɡwɑːdəˈluːp/; French: [ɡwad(ə)lup] ; Guadeloupean Creole French: Gwadloup, IPA: [ɡwadlup]) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the two inhabited Îles des Saintes—as well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat and north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe-à-Pitre, both located on Grande-Terre Island. It had a population of 384,239 in 2019. Like the other overseas departments, it is an integral part of France. As a constituent territory of the European Union and the Eurozone, the euro is its official currency and any European Union citizen is free to settle and work there indefinitely. However, as an overseas department, it is not part of the Schengen Area. The region formerly included Saint Barthélemy and Saint Martin, which were detached from Guadeloupe in 2007 following a 2003 referendum. Christopher Columbus visited Guadeloupe in 1493, during his second voyage, and gave the island its name. The official language is French; Antillean Creole is also spoken. The archipelago was called Karukera (or "The Island of Beautiful Waters") by the native Arawak people. Christopher Columbus named the island Santa María de Guadalupe in 1493 after Our Lady of Guadalupe, a shrine to the Virgin Mary venerated in the Spanish town of Guadalupe, Extremadura. When the area became a French colony, the Spanish name was retained - though altered to French orthography and phonology. The islands are locally known as Gwada. The islands were first populated by indigenous peoples of the Americas, possibly as far back as 3000 BC. The Arawak people are the first identifiable group, but they were later displaced circa 1400 by Kalina-Carib peoples. Christopher Columbus was the first European to see Guadeloupe, landing in November 1493 and giving it its current name. Several attempts at colonisation by the Spanish in the 16th century failed due to attacks from the native peoples. In 1626, the French, under the trader and adventurer Pierre Belain d'Esnambuc, began to take an interest in Guadeloupe, expelling Spanish settlers. The Compagnie des Îles de l'Amérique settled in Guadeloupe in 1635, under the direction of the French colonial leaders Charles Liénard de L'Olive and Jean du Plessis d'Ossonville; they formally took possession of the island for France and brought in French farmers to colonise the land. This led to the death of many indigenous people by disease and violence. By 1640, however, the Compagnie des Îles de l'Amérique had gone bankrupt, and they thus sold Guadeloupe to Charles Houël du Petit Pré who began plantation agriculture, with the first African slaves arriving in 1650. Slave resistance was immediately widespread, with an open uprising in 1656 lasting several weeks and a simultaneous spate of mass desertions that lasted at least two years until the French compelled indigenous peoples to stop assisting them. Ownership of the island passed to the French West India Company before it was annexed to France in 1674 under the tutelage of their Martinique colony. Institutionalised slavery, enforced by the Code Noir from 1685, led to a booming sugar plantation economy. During the Seven Years' War, the British captured and occupied the islands until the 1763 Treaty of Paris. During that time, Pointe-à-Pitre became a major harbour, and markets in Britain's North American colonies were opened to Guadeloupean sugar, which was traded for foodstuffs and timber. The economy expanded quickly, creating vast wealth for the French colonists. So prosperous was Guadeloupe at the time that, under the 1763 Treaty of Paris, France forfeited its Canadian colonies in exchange for the return of Guadeloupe. Coffee planting began in the late 1720s, also worked by slaves and, by 1775, cocoa had become a major export product as well. The French Revolution brought chaos to Guadeloupe. Under new revolutionary law, freedmen were entitled to equal rights. Taking advantage of the chaotic political situation, Britain invaded Guadeloupe in 1794. The French responded by sending an expeditionary force led by Victor Hugues, who retook the islands and abolished slavery. More than 1,000 French colonists were killed in the aftermath. In 1802, the French Consulate government reinstated the pre-revolutionary government and slavery, prompting a slave rebellion led by Louis Delgrès. The French authorities responded quickly, culminating in the Battle of Matouba on 28 May 1802. Realising they had no chance of success, Delgrès and his followers committed mass suicide by deliberately exploding their gunpowder stores. In 1810, the British captured the island again, handing it over to Sweden under the 1813 Treaty of Stockholm. In the 1814 Treaty of Paris, Sweden ceded Guadeloupe to France, giving rise to the Guadeloupe Fund. In 1815, the Treaty of Vienna acknowledged French control of Guadeloupe. Slavery was abolished in the French Empire in 1848. After 1854, indentured labourers from the French colony of Pondicherry in India were brought in. Emancipated slaves had the vote from 1849, but French nationality and the vote were not granted to Indian citizens until 1923, when a long campaign, led by Henry Sidambarom, finally achieved success. In 1936, Félix Éboué became the first black governor of Guadeloupe. During the Second World War Guadeloupe initially came under the control of the Vichy government, later joining Free France in 1943. In 1946, the colony of Guadeloupe became an overseas department of France. Tensions arose in the post-war era over the social structure of Guadeloupe and its relationship with mainland France. The 'Massacre of St Valentine' occurred in 1952, when striking factory workers in Le Moule were shot at by the Compagnies républicaines de sécurité, resulting in four deaths. In May 1967 racial tensions exploded into rioting following a racist attack on a black Guadeloupean, Raphael Balzinc, resulting in eight deaths. An independence movement grew in the 1970s, prompting France to declare Guadeloupe a French region in 1974. The Union populaire pour la libération de la Guadeloupe (UPLG) campaigned for complete independence, and by the 1980s the situation had turned violent with the actions of groups such as Groupe de libération armée (GLA) and Alliance révolutionnaire caraïbe (ARC). Greater autonomy was granted to Guadeloupe in 2000. Through a referendum in 2003, Saint-Martin and Saint Barthélemy voted to separate from the administrative jurisdiction of Guadeloupe, this being fully enacted by 2007. In January 2009, labour unions and others known as the Liyannaj Kont Pwofitasyon went on strike for more pay. Strikers were angry with low wages, the high cost of living, high levels of poverty relative to mainland France and levels of unemployment that are amongst the worst in the European Union. The situation quickly escalated, exacerbated by what was seen as an ineffectual response by the French government, turning violent and prompting the deployment of extra police after a union leader (Jacques Bino) was shot and killed. The strike lasted 44 days and had also inspired similar actions on nearby Martinique. President Nicolas Sarkozy later visited the island, promising reform. Tourism suffered greatly during this time and affected the 2010 tourist season as well. Guadeloupe is an archipelago of more than 12 islands, as well as islets and rocks situated where the northeastern Caribbean Sea meets the western Atlantic Ocean. It is located in the Leeward Islands in the northern part of the Lesser Antilles, a partly volcanic island arc. To the north lie Antigua and Barbuda and the British Overseas Territory of Montserrat, with Dominica lying to the south. The two main islands are Basse-Terre (west) and Grande-Terre (east), which form a butterfly shape as viewed from above, the two 'wings' of which are separated by the Grand Cul-de-Sac Marin, Rivière Salée [fr] and Petit Cul-de-Sac Marin. More than half of Guadeloupe's land surface consists of the 847.8 km Basse-Terre. The island is mountainous, containing such peaks as Mount Sans Toucher (4,442 feet; 1,354 metres) and Grande Découverte (4,143 feet; 1,263 metres), culminating in the active volcano La Grande Soufrière, the highest mountain peak in the Lesser Antilles with an elevation of 1,467 metres (4,813 ft). In contrast Grande-Terre is mostly flat, with rocky coasts to the north, irregular hills at the centre, mangrove at the southwest, and white sand beaches sheltered by coral reefs along the southern shore. This is where the main tourist resorts are found. Marie-Galante is the third-largest island, followed by La Désirade, a north-east slanted limestone plateau, the highest point of which is 275 metres (902 ft). To the south lies the Îles de Petite-Terre, which are two islands (Terre de Haut and Terre de Bas) totalling 2 km. Les Saintes is an archipelago of eight islands of which two, Terre-de-Bas and Terre-de-Haut are inhabited. The landscape is similar to that of Basse-Terre, with volcanic hills and irregular shoreline with deep bays. There are numerous other smaller islands. Basse-Terre is a volcanic island. The Lesser Antilles are at the outer edge of the Caribbean Plate, and Guadeloupe is part of the outer arc of the Lesser Antilles Volcanic Arc. Many of the islands were formed as a result of the subduction of oceanic crust of the Atlantic Plate under the Caribbean Plate in the Lesser Antilles subduction zone. This process is ongoing and is responsible for volcanic and earthquake activity in the region. Guadeloupe was formed from multiple volcanoes, of which only La Grande Soufrière is not extinct. Its last eruption was in 1976, and led to the evacuation of the southern part of Basse-Terre. 73,600 people were displaced throughout three and a half months following the eruption. K–Ar dating indicates that the three northern massifs on Basse-Terre Island are 2.79 million years old. Sections of volcanoes collapsed and eroded within the last 650,000 years, after which the Sans Toucher volcano grew in the collapsed area. Volcanoes in the north of Basse-Terre Island mainly produced andesite and basaltic andesite. There are several beaches of dark or "black" sand. La Désirade, east of the main islands, has a basement from the Mesozoic, overlaid with thick limestones from the Pliocene to Quaternary periods. Grande-Terre and Marie-Galante have basements probably composed of volcanic units of Eocene to Oligocene, but there are no visible outcrops. On Grande-Terre, the overlying carbonate platform is 120 metres thick. The islands are part of the Leeward Islands, so called because they are downwind of the prevailing trade winds, which blow out of the northeast. This was significant in the days of sailing ships. Grande-Terre is so named because it is on the eastern, or windward side, exposed to the Atlantic winds. Basse-Terre is so named because it is on the leeward south-west side and sheltered from the winds. Guadeloupe has a tropical climate tempered by maritime influences and the Trade Winds. There are two seasons, the dry season called "Lent" from January to June, and the wet season called "winter", from July to December. Located in a very exposed region, Guadeloupe and its dependencies have to face many cyclones. The deadliest hurricane to hit Guadeloupe was the Pointe-à-Pitre hurricane of 1776, which killed at least 6,000 people. In 1989, Hurricane Hugo caused severe damage to the islands of the archipelago and left a deep mark on the memory of the local inhabitants. In 1995, three hurricanes (Iris, Luis and Marilyn) hit the archipelago in less than three weeks. Other notable hurricanes include Okeechobee in 1928, Betsy in 1956, Cleo in 1964, Inez in 1966, and Irma and Maria in 2017. With fertile volcanic soils, heavy rainfall and a warm climate, vegetation on Basse-Terre is lush. Most of the islands' forests are on Basse-Terre, containing such species as mahogany, ironwood and chestnut trees. Mangrove swamps line the Salée River. Much of the forest on Grande-Terre has been cleared, with only a few small patches remaining. Between 300 and 1,000 metres (980 and 3,280 ft) of altitude, the rainforest that covers a large part of the island of Basse-Terre develops. There we find the white gum tree, the acomat-boucan or chestnut tree, the marbri or bois-bandé or the oleander; shrubs and herbaceous plants such as the mountain palm, the balisier or ferns; many epiphytes: bromeliads, philodendrons, orchids and lianas. Above 1,000 m (3,300 ft), the humid savannah develops, composed of mosses, lichens, sphagnum or more vigorous plants such as mountain mangrove, high altitude violet or mountain thyme. The dry forest occupies a large part of the islands of Grande-Terre, Marie-Galante, Les Saintes, La Désirade and also develops on the leeward coast of Basse-Terre. The coastal forest is more difficult to develop because of the nature of the soil (sandy, rocky), salinity, sunshine and wind and is the environment where the sea grape, the mancenilla (a very toxic tree whose trunk is marked with a red line), the icaquier or the Coconut tree grow. On the cliffs and in the Arid zones are found cacti such as the cactus-cigar (Cereus), the prickly pear, the chestnut cactus, the "Tête à l'anglais" cactus and the aloes. The Mangrove forest that borders some of Guadalupe's coasts is structured in three levels, from the closest to the sea to the farthest. On the first level are the red mangroves; on the second, about 10 metres (33 ft) from the sea, the black mangroves form the shrubby mangrove; on the third level the white mangroves form the tall mangrove. Behind the mangrove, where the tide and salt do not penetrate, a swamp forest sometimes develops, unique in Guadeloupe. The representative species of this environment is the Mangrove-medaille. Few terrestrial mammals, aside from bats and raccoons, are native to the islands. The introduced Javan mongoose is also present on Guadeloupe. Bird species include the endemic purple-throated carib and the Guadeloupe woodpecker. The waters of the islands support a rich variety of marine life. However, by studying 43,000 bone remains from six islands in the archipelago, 50 to 70% of snakes and lizards on the Guadeloupe Islands became extinct after European colonists arrived, who had brought with them mammals such as cats, mongooses, rats, and raccoons, which might have preyed upon the native reptiles. In recent decades, Guadeloupe's natural environments have been affected by hunting and fishing, forest retreat, urbanization and suburbanization. They also suffer from the development of intensive crops (banana and sugar cane, in particular), which reached their peak in the years 1955–75. This has led to the following situation: seagrass beds and reefs have degraded by up to 50% around the large islands; mangroves and mantids have almost disappeared in Marie-Galante, Les Saintes and La Désirade; the salinity of the fresh water table has increased due to "the intensity of use of the layer"; and pollution of agricultural origin (pesticides and nitrogenous compounds). In addition, the ChlEauTerre study, unveiled in March 2018, concludes that 37 different anthropogenic molecules (more than half of which come from residues of now-banned pesticides, such as chlordecone) were found in "79% of the watersheds analyzed in Grande-Terre and 84% in Basse-Terre." A report by the Guadeloupe Water Office notes that in 2019 there is a "generalized degradation of water bodies." Despite everything, there is a will to preserve these environments whose vegetation and landscape are preserved in some parts of the islands and constitute a sensitive asset for tourism. These areas are partially protected and classified as ZNIEFF, sometimes with nature reserve status, and several caves are home to protected chiropterans. The Guadalupe National Park was created on 20 February 1989. In 1992, under the auspices of UNESCO, the Biosphere Reserve of the Guadeloupe Archipelago (Réserve de biosphère de l'archipel de la Guadeloupe) was created. As a result, on 8 December 1993, the marine site of Grand Cul-de-sac was listed as a wetland of international importance. The island thus became the overseas department with the most protected areas. The archipelago is crossed by numerous geological faults such as those of la Barre or la Cadoue, while in depth, in front of Moule and La Désirade begins the Désirade Fault, and between the north of Maria-Galante and the south of Grande-Terre begins the Maria Galante Fault. And it is because of these geological characteristics, the islands of the department of Guadeloupe are classified in zone III according to the seismic zoning of France and are subject to a specific risk prevention plan. The 1843 earthquake in the Lesser Antilles is, to this day, the most violent earthquake known. It caused the death of more than a thousand people, as well as major damage in Pointe-à-Pitre. On 21 November 2004, the islands of the department, in particular Les Saintes archipelago, were shaken by a violent earthquake that reached a magnitude of 6.3 on the Richter scale and caused the death of one person, as well as extensive material damage. Guadeloupe recorded a population of 402,119 in the 2017 census. The population is mainly Afro-Caribbean. European, Indian (Tamil, Telugu, and other South Indians), Lebanese, Syrians, and Chinese are all minorities. There is also a substantial population of Haitians in Guadeloupe who work mainly in construction and as street vendors. Basse-Terre is the political capital; however, the largest city and economic hub is Pointe-à-Pitre. The population of Guadeloupe has been decreasing by 0.8% per year since 2013. In 2017 the average population density in Guadeloupe was 240 inhabitants per square kilometre (620/sq mi), which is very high in comparison to metropolitan France's average of 119 inhabitants per square kilometre (310/sq mi). One third of the land is devoted to agriculture and all mountains are uninhabitable; this lack of space and shelter makes the population density even higher. The most populous urban unit (agglomeration) is Pointe-à-Pitre-Les Abymes, which covers 11 communes and 65% of the population of the department. The three largest urban units are: In 2011, life expectancy at birth was recorded at 77.0 years for males and 83.5 for females. Medical centres in Guadeloupe include: University Hospital Centre (CHU) in Pointe-à-Pitre, Regional Hospital Centre (CHR) in Basse-Terre, and four hospitals located in Capesterre-Belle-Eau, Pointe-Noire, Bouillante and Saint-Claude. The Institut Pasteur de la Guadeloupe, is located in Pointe-à-Pitre and is responsible for researching environmental hygiene, vaccinations, and the spread of tuberculosis and other mycobacteria. The relative wealth of Guadeloupe contrasts with the extreme poverty of several islands in the Caribbean region, which makes the community an attractive place for the populations of some of these territories. In addition, other factors, such as political instability and natural disasters, explain this immigration. As early as the 1970s, the first illegal immigrants of Haitian origin arrived in Guadeloupe to meet a need for labour in the agricultural sector; alongside this Haitian immigration, which is more visible because it is more numerous, Guadeloupe has also seen the arrival and settlement of populations from the island of Dominica and the Dominican Republic. In 2005, the prefecture, which represents the State in Guadeloupe, reported figures of between 50,000 and 60,000 foreigners in the department. Created in 1963 by Michel Debré, Bumidom's objective was to "[...] contribute to the solution of demographic problems in the overseas departments". To this end, its missions were multiple: information for future emigrants, vocational training, family reunification and management of reception centres. At the time, this project was also seen as a means to diminish the influence of the West Indian independence movements, which were gaining strength in the 1960s. Between 1963 and 1981, an estimated 16,562 Guadeloupeans emigrated to metropolitan France through Bumidom. And the miniseries Le Rêve français (The French Dream) sets out to recount some of the consequences of the emigration of West Indians and Reunionese to France. An estimated 50,000 Guadeloupeans and Martinicans participated in the construction of the Panama Canal between 1904 and 1914. In 2014, it was estimated that there were between 60,000 and 70,000 descendants of these West Indians living in Panama. Other waves of migration to North America, especially to Canada, occurred at the beginning of the 20th century. Together with Martinique, La Réunion, Mayotte and French Guiana, Guadeloupe is one of the overseas departments, being both a region and a department combined into one entity. It is also an outermost region of the European Union. The inhabitants of Guadeloupe are French citizens with full political and legal rights. Legislative powers are centred on the separate departmental and regional councils. The elected president of the Departmental Council of Guadeloupe is currently Guy Losbar (1.7.2021); its main areas of responsibility include the management of a number of social and welfare allowances, of junior high school (collège) buildings and technical staff, and local roads and school and rural buses. The Regional Council of Guadeloupe is a body, elected every six years, consisting of a president (currently Ary Chalus) and eight vice-presidents. The regional council oversees secondary education, regional transportation, economic development, the environment, and some infrastructure, among other things. Guadeloupe elects one deputy from one of each of the first, second, third, and fourth constituencies to the National Assembly of France. Three senators are chosen for the Senate of France by indirect election. For electoral purposes, Guadeloupe is divided into two arrondissements (Basse-Terre and Pointe-à-Pitre), and 21 cantons. Most of the French political parties are active in Guadeloupe. In addition there are also regional parties such as the Guadeloupe Communist Party, the Progressive Democratic Party of Guadeloupe, the Guadeloupean Objective, the Pluralist Left, and United Guadeloupe, Solidary and Responsible. The prefecture (regional capital) of Guadeloupe is Basse-Terre. Local services of the state administration are traditionally organised at departmental level, where the prefect represents the government. For the purposes of local government, Guadeloupe is divided into 32 communes. Each commune has a municipal council and a mayor. Revenues for the communes come from transfers from the French government, and local taxes. Administrative responsibilities at this level include water management, civil register, and municipal police. From a geostrategic point of view, Guadeloupe is located in a central part of the Caribbean archipelago between the Atlantic Ocean and the Caribbean Sea. This location in the region allows France to reach a large part of the eastern coast of the American continent. The exclusive economic zone formed by Guadeloupe and Martinique covers just over 126,146 square kilometres. In 1980 France established its maritime boundaries in the area by signing a Treaty with Venezuela. This provides France with important fishing resources. This offers France important fishing resources and independence to develop a sovereign policy of underwater research and protection (protection of humpback whales, Cousteau reserve, protection of coral reefs). Because of its geographical position, Guadeloupe allows France to participate in political and diplomatic dialogues at both the regional (Lesser and Greater Antilles) and continental (Latin and North America) levels. The signing of the Regional Convention for the Internationalisation of Enterprise (CRIE), membership of the Economic Commission for Latin America and the Caribbean (ECLAC) and membership of the Association of Caribbean States (ACS) are milestones that have enabled Guadeloupe to develop its bilateral or multilateral relations within the framework of international agreements or institutions.11 The development of bilateral and multilateral economic partnerships with other Caribbean and American states is based on the modernisation of the autonomous port of Guadeloupe and the importance of the Guadeloupe-Polo Caribe international airport. As a part of France, Guadeloupe uses the French tricolour as its flag and La Marseillaise as its anthem. However, a variety of other flags are also used in unofficial or informal contexts as the flag of Guadeloupe, most notably the sun-based flag. Independentists also have their own flag suggested by the People's Union for the Liberation of Guadeloupe. The economy of Guadeloupe depends on tourism, agriculture, light industry and services. It is reliant upon mainland France for large subsidies and imports and public administration is the largest single employer on the islands. Unemployment is especially high among the youth population. In 2017, the Gross domestic product (GDP) of Guadeloupe was €9.079 billion, and showed 3.4% growth. The GDP per capita of Guadeloupe was €23,152. Imports amounted to €3.019 billion, and exports to €1.157 billion. The main export products are bananas, sugar and rum. Banana exports suffered in 2017 from damages due to Hurricane Irma and Hurricane Maria. Tourism is one of the most prominent sources of income, with most visitors coming from France and North America. An increasingly large number of cruise ships visit Guadeloupe, the cruise terminal of which is in Pointe-à-Pitre. The traditional sugar cane crop is slowly being replaced by other crops, such as bananas (which now supply about 50% of export earnings), eggplant, guinnep, noni, sapotilla, giraumon squash, yam, gourd, plantain, christophene, cocoa, jackfruit, pomegranate, and many varieties of flowers. Other vegetables and root crops are cultivated for local consumption, although Guadeloupe is dependent upon imported food, mainly from the rest of France. Of the various light industries, sugar and rum production, solar energy, cement, furniture and clothing are the most prominent. Most manufactured goods and fuel are imported. Guadeloupe's official language is French, which is spoken by nearly all of the population. Most residents also speak Guadeloupean Creole, a French-based creole language. Guadeloupean Creole emerged as a result of the need for all ethnic groups (French, African and Amerindian) to be able to understand each other. This language is therefore the result of a mixture created in the 17th century in response to a communicative emergency. At the time of the colony's foundation, a majority of the French population did not speak the standard French language but local dialects and languages, such as Breton and Norman, while the Africans came from a variety of West and Central African ethnic groups and lacked a common language themselves. The Creole language emerged as a lingua franca and ultimately became the native language of much of the population. Moreover, Terre-de-Haut and Terre-de-Bas, in the Saintes archipelago, due to their settlement history (Breton, Norman and Poitevin settlers), have their own Creoles which differ from Guadeloupean Creole by their French pronunciations, their particular expressions, their syntax and their sonorities. Although it is not transcribed, these islanders call their Creole "patois" or "language of St. Martin" and actively ensure its transmission and perpetuation by their descendants in vernacular form. A Guadeloupean béké first wrote Creole at the end of the 17th century, transcribing it using French orthography. As Guadeloupe is a French department, French is the official language. However, Guadeloupean French (in contact with Creole) has certain linguistic characteristics that differ from those of standard metropolitan French. Recently, a very detailed study of the phonetic aspect of Guadeloupean French has been undertaken (this would be the first study to deal with both the acoustic and the phonological and perceptual aspects of Guadeloupean French in particular and West Indian French in general). It is also concerned with the reading varieties of Guadeloupean French (acrolect, mesolect and basilect). In recent decades there has been a revival of Creole, which has stimulated the appearance of books of short stories and poetry published in Creole and French over the last ten years. In this context, Hector Poullet is a pioneer of Creole-mediated dictation. Creole is also a very colourful language and very philosophical in its expressions and phrases, which, translated literally into French, can be confusing. The representatives of the older generations are not always fluent in French, but in Guadeloupean Creole. Today, the question as to whether French and Creole are stable in Guadeloupe, i.e. whether both languages are practised widely and competently throughout society, remains a subject of active research. Figures in 2020 state that 96% of the population is Christian (of these, approximately 86% are Roman Catholic, 8% Protestant and 6% other Christian); of the other 4%, most have no religion. Guadeloupe is in the Catholic diocese of Basse-Terre (et Pointe-à-Pitre). In 1685, the Black Code announced the Christian religion in its Catholic form as the only authorized religion in the French West Indies, thus excluding Jews and the various Protestant groups from practicing their beliefs, and imposed the forced conversion of the newly arrived slaves and the baptism of the older ones. Guadeloupe adopted the code on 10 December 1685. This was followed by a rapid fashion among the slaves, since this religion offered them a spiritual refuge and allowed them to safeguard some of their African beliefs and customs, thus marking the beginning of a religious syncretism. Since the 1970s, new religions and groups have been 'competing' with the Catholic Church, such as the Evangelical Pentecostal Church, the Seventh-day Adventist Church, the Bible Students or Jehovah's Witnesses, and the Church of Jesus Christ of Latter-day Saints (Mormons). Administratively, the territory of Guadeloupe is part of the Diocese of Basse-Terre and Pointe-à-Pitre, attached to the Catholic Church in France. The diocese includes the territories of Guadeloupe, St. Barthélemy and St. Martin and the number of faithful is estimated at 400,000. In 2020 there were 59 priests active in the diocese. The episcopal see is located in Basse-Terre, in the cathedral of Notre-Dame-de-Guadeloupe. Hinduism, which accompanied the Indians who came to work in Guadeloupe in the mid-19th century, has expanded since the 1980s. The Indian community has its own tradition that comes from India. It is the mayé men, a distorted pronunciation of the name of the Tamil Indian goddess Mariamman. There are no less than 400 temples in the archipelago. Islam made its appearance in the French West Indies in the 1970s, first in Martinique. According to the president of the Muslim association of Guadeloupe, there are between 2,500 and 3,000 Muslims in the department. The island has two mosques. Judaism has been present in Guadeloupe since the arrival of Dutch settlers expelled from the northeast of present-day Brazil in 1654. There is a synagogue and an Israelite cultural community. Guadeloupeans of Syrian and Lebanese origin practice Catholicism in its Maronite form. Rastafari has been attractive to some young people since the 1970s following its emergence in Jamaica. The quimbois or kenbwa, practiced in Guadeloupe, refer to magical-religious practices derived from Christian and African syncretism. Guadeloupe has always had a rich literary output, with Guadeloupean author Saint-John Perse winning the 1960 Nobel Prize in Literature. Other prominent writers from Guadeloupe or of Guadeloupean descent include Maryse Condé, Simone Schwarz-Bart, Myriam Warner-Vieyra, Oruno Lara, Daniel Maximin, Paul Niger, Guy Tirolien and Nicolas-Germain Léonard. Music and dance are also very popular, and the interaction of African, French and Indian cultures has given birth to some original new forms specific to the archipelago, most notably zouk music. Since the 1970s, Guadeloupean music has increasingly claimed the local language, Guadeloupean Creole as the preferred language of popular music. Islanders enjoy many local dance styles including zouk, zouk-love, compas, as well as the modern international genres such as hip hop, etc. Traditional Guadeloupean music includes biguine, kadans, cadence-lypso, and gwo ka. Popular music artists and bands such as Experience 7, Francky Vincent, Kassav' (which included Patrick St-Eloi, and Gilles Floro) embody the more traditional music styles of the island, whilst other musical artists such as the punk band The Bolokos (1) or Tom Frager focus on more international genres such as rock or reggae. Many international festivals take place in Guadeloupe, such as the Creole Blues Festival on Marie-Galante. All the Euro-French forms of art are also ubiquitous, enriched by other communities from Brazil, Dominican Republic, Haiti, India, Lebanon, Syria who have migrated to the islands. Classical music has seen a resurgent interest in Guadeloupe. One of the first known composers of African origin was born in Guadeloupe, Le Chevalier de Saint-Georges, a contemporary of Joseph Haydn and Wolfgang Amadeus Mozart, and a celebrated figure in Guadeloupe. Several monuments and cites are dedicated to Saint-Georges in Guadeloupe, and there is an annual music festival, Festival International de Musique Saint-Georges, dedicated in his honour. The festival attracts classical musicians from all over the world and is one of the largest classical music festivals in the Caribbean. Another element of Guadeloupean culture is its dress. A few women (particularly of the older generation) wear a unique style of traditional dress, with many layers of colourful fabric, now only worn on special occasions. On festive occasions they also wore a madras (originally a "kerchief" from South India) headscarf tied in many different symbolic ways, each with a different name. The headdress could be tied in the "bat" style, or the "firefighter" style, as well as the "Guadeloupean woman". Jewellery, mainly gold, is also important in the Guadeloupean lady's dress, a product of European, African and Indian inspiration. Traditional dress, inherited today, is the result of a long cultural mix involving Africa, Asia and Europe. This cultural mix was initially based on triangular trade and later on a more globalized trade that included importing fabrics from the Orient. For example, in the traditional Guadeloupean costume, we find Asian influences with the use of madras cloth from India, African and European influences (Spanish in this case) with the use of the headscarf for covering and again European influences (French in this case) in the adoption of the lace petticoat from Brittany. The clothing worn in Guadeloupe has mutated over the centuries and has undergone changes that reflect the social conditions and the evolution of society, from the time of slavery to the present day. During the second half of the 17th century, slaves arriving in Guadeloupe were naked or nearly naked. They were then forced to wear rags or the owner's worn-out clothes, which were quickly discarded, barely concealing their nakedness. Or slaves working in the fields wore the "three-hole" dress, made of a vegetable fiber fabric in which three holes were made (two for the arms and one for the head). Under pressure from the church and the authorities, slaves were forced to wear the "three-hole" dress. Under pressure from the church and as soon as the Black Code was enforced in 1685, owners were required to provide "each slave with two suits of cloth or four alders [about 7.5 m; 81 sq ft] of cloth a year... art.25" which only modestly improved their conditions. However, the poor quality of the clothing worn during slavery must be qualified, as it could vary according to the day of the week (daily clothing, Sunday clothing, clothing for special occasions), or according to the status of the slaves employed in the houses. In fact, the latter could be dressed in clothes of different quality according to the job they performed on the property. For example, in the case of the maids, their clothes could be of better quality because they had to reflect the image of success and wealth that their master wanted to project. From the 17th century onwards, the development of the Creole costume coincided with the desire of slave women to regain their dignity, with the evolution of their employment within the household or Guadeloupean society (specialization in the sewing and dressmaking trades), with the evolution of Guadeloupean society (free women of colour, freed slaves, mulatto women) and with the influence of the European fashionable costume, which the housewife represented. After the abolition of slavery, the main periods of traditional Guadeloupean dress were the following: As a result of this fusion of African and European dress codes over the centuries, including materials from distant origins, the Guadeloupean wardrobe includes Creole garments such as: the cozy dress or wòb ti-do, an everyday dress also called "à corps" because it fits the body like a corset; the skirt-shirt, in ceremonial dress (the shirt is made of very fine batiste trimmed with lace, which stops at the elbows and is buttoned with golden buttons. The skirt, full and very wide in the back with tail, is knotted above the breasts); the bodice dress which is distinguished from the others by the quantity and richness of the fabric used (satin, brocade satin, satin). Guadeloupean cuisine is a mixture of African, European and Asian influences. It uses first of all agricultural products such as poyo (plantain more commonly called green plantain or ti-nain), bread plantain, okra, cabbage, pigeon peas, cristofina, yam or sweet potato. The sea and rivers provide rays, snappers, octopus (chatou), lambis, burgots (a type of large whelk), sea urchins and ouassous. Orchards provide fruits such as soursop, red jambosier, passion fruit (marakoudja), mango, quenette, and citrus. Condiments sometimes added to dishes are habanero chili, cive (a kind of onion from the country) or roucou seeds that give a red tint to sauces. The cooking, often spicy and seasoned, results from soaking meat or fish for hours before cooking, to enhance its flavour. Typical dishes are: fish blaff, dombrés, bébélé (from Marie-Galante), colombo (equivalent to Indian curry) and matété (rice cooked with crab). As for appetizers or snacks, there are morcillas criollas, accras, cassava cakes and bokit. As for desserts, there are blancmange, sorbets or various fruit salads. Pastries include pâtés with jam, tournament d'amour (in Les Saintes), caca bœuf (in Marie-Galante) or sacristain. Pain natté, a local brioche bread, is often eaten. There are local productions of candied fruits (elderberry, pineapple, carambola) and jams (guava, banana, coconut). Sorbets such as coconut sherbet or snowball made with crushed ice to which a syrup (mint, grenadine) is added are also consumed. Sweets include coconut sugar, kilibibi and konkada (of Beninese origin). In the category of beverages, the consumption of soft drinks is very important in Guadeloupe, as well as that of a drink locally nicknamed black beer. In addition, it is not uncommon to see vendors of sugar cane juice or coconut water on the roads. Chaudeau is consumed on special occasions (weddings, baptisms, communions) and is a Guadeloupean-style eggnog eaten with a whipped cake (génoise). The rum, whose consumption is culturally imbricated in the Guadeloupean society, comes in particular from one of the ten distilleries distributed in the Guadeloupean territory and that produce the rums of Guadeloupe. At Christmas, families and friends gather during the chanté Nwel, an opportunity to sing carols and celebrate. After the vacations, rehearsals begin for the Guadeloupe carnival. Carnival groups parade through the streets every Sunday afternoon until the Carnival festivities in February or March. For example, the groups with skins, the Akiyo group are groups composed only of large percussion and lambi shell instruments. They have the particularity of having no brass instruments in the band, no choreography, they often parade without themed costumes. Since 2014, the Carnival in kabwèt of Marie-Galante has been registered in the inventory of the intangible heritage of France at UNESCO. Shrove Tuesday is the big party where carnival groups compete in the main town, Basse-Terre, or in Pointe-à-Pitre, for the best costumes, the best music or the best choreography whose theme is imposed by the carnival committees. The next day, on Ash Wednesday, the day that ends the carnival, the mascot king of the carnival nicknamed Vaval is burned, which signals the end of the festivities, everyone parades in black and white (to mark Vaval's mourning), and then the forty days of Lent begin. Most of the population is Catholic and respects this period. But, given the great fondness for festivities, on the "Thursday of Lent" a parade is organized in red and black identical to that of Carnival, with groups of musicians preceded by people parading. After this period of deprivation, the Easter celebrations take place, during which families usually go camping on the beach and eat traditional and very popular dishes based on crabs: matété (rice cooked with crab), calalou (crabs with wooden leaves accompanied by white rice) or dombrés with crabs (small balls of flour cooked with crab). Football is popular in Guadeloupe, and several notable footballers are of Guadeloupean origin, including Marius Trésor, Stéphane Auvray, Ronald Zubar and his younger brother Stéphane, Miguel Comminges, Dimitri Foulquier, Bernard Lambourde, Anthony Martial, Alexandre Lacazette, Thierry Henry, Lilian Thuram, William Gallas, Layvin Kurzawa, Mikael Silvestre, Thomas Lemar, Mathys Tel, Kingsley Coman and David Regis. The Guadeloupe football team were 2007 CONCACAF Gold Cup semi-finalists, defeated by Mexico. Basketball is popular. Best known players are the NBA players Rudy Gobert, Mickaël Piétrus, Johan Petro, Rodrigue Beaubois, and Mickael Gelabale (now playing in Russia), who were born on the island. Several track and field athletes, such as Marie-José Pérec, Patricia Girard-Léno, Christine Arron, and Wilhem Belocian, are also Guadeloupe natives. The island has produced many world-class fencers. Yannick Borel, Daniel Jérent, Ysaora Thibus, Anita Blaze, Enzo Lefort and Laura Flessel were all born and raised in Guadeloupe. According to olympic gold medalist and world champion Yannick Borel, there is a good fencing school and a culture of fencing in Guadeloupe. Even though Guadeloupe is part of France, it has its own sports teams. Rugby union is a small but rapidly growing sport in Guadeloupe. The island is internationally known for hosting the Karujet Race – Jet Ski World Championship since 1998. This nine-stage, four-day event attracts competitors from around the world (mostly Caribbeans, Americans, and Europeans). The Karujet, generally made up of seven races around the island, has an established reputation as one of the most difficult championships in which to compete. The Route du Rhum is one of the most prominent nautical French sporting events, occurring every four years. Bodybuilder Serge Nubret was born in Anse-Bertrand, Grande-Terre, representing the French state in various bodybuilding competitions throughout the 1960s and 1970s including the IFBB's Mr. Olympia contest, taking 3rd place every year from 1972 to 1974, and 2nd place in 1975. Bodybuilder Marie-Laure Mahabir also hails from Guadeloupe. The country has a passion for cycling. It hosted the French Cycling Championships in 2009 and continues to host the Tour de Guadeloupe every year. Guadeloupe continues to host the Orange Open de Guadeloupe tennis tournament (since 2011). The Tour of Guadeloupe sailing, which was founded in 1981. In boxing, Ludovic Proto - as an amateur, he competed in the 1988 Summer Olympics in the men's light welterweight division. As a professional, he was a former French and European welterweight champion; Gilbert Delé - as a professional, he was a former French and European light-middleweight champion, then he won the WBA world light-middleweight title in 1991; Jean-Marc Mormeck - as a professional, he was a former French light heavyweight champion and two-time unified world cruiserweight champion—held the WBA, WBC, and The Ring titles twice between 2005 and 2007). Guadeloupe is served by a number of airports; most international flights use Pointe-à-Pitre International Airport. Boats and cruise ships frequent the islands, using the ports at Pointe-à-Pitre and Basse-Terre. On 9 September 2013 the county government voted in favour of constructing a tramway in Pointe-à-Pitre. The first phase will link northern Abymes to downtown Pointe-à-Pitre by 2019. The second phase, scheduled for completion in 2023, will extend the line to serve the university. The Guadeloupe academic region includes only the Guadeloupe academy. It employs 9,618 people and its operating budget was €714.3 million for 2018–2019. The territory has 300 elementary schools, including 1 private kindergarten under contract and 14 private elementary schools under contract. It also has 52 middle schools, including 6 private under contract. And finally, it has 38 high schools, 13 of which are private under contract. During the 2018–2019 school year were enrolled at Guadeloupe Academy: The islands of Guadeloupe are also home to two campuses of the University of the French Antilles, Camp-Jacob in Saint-Claude and Fouillole in Pointe-à-Pitre, the latter being the headquarters of the institution. Student residences are located around each campus. Furthermore, a satellite campus dedicated to healthcare is located in the vicinity of the University Hospital Centre of Pointe-à-Pitre, many schools for apprentices are located throughout the archipelago, an Arts and Crafts Centre acting as local school for fine art is located in Bergevin, Pointe-à-Pitre, and, finally, three sites of the regional second chance school are implanted in various high schools. The island has great potential for solar, wind and marine energy, but by 2018, biomass and coal energy and petroleum hydrocarbons are still the most used. The Energy transition Law (TECV) provides for 50% renewable energy by 2020 in the territory. And the Guadeloupe EPP plans to develop 66 MW of additional biomass capacity between 2018 and 2023, including 43 MW to replace coal. For example, the Albioma Caraïbes (AC) coal-fired power plant will be converted to biomass to help increase the share of renewables in Guadeloupe's energy mix from 20.5% to 35%, thereby mitigating the island's dependence on fossil fuels and reducing acidic air pollution and the production of toxic and bottom ash. This 34 MW power plant, producing 260 GWh/year of electricity in 2018 (i.e. 15% of the island's needs), should reduce 265 000 t of CO2 equivalent/year throughout the chain (−87% once converted to biomass compared to the previous situation, coal). Guadeloupe has an electricity production plant, in Le Moule, based on the sugar cane agricultural sector, which recovers the residues from sugar cane crushing (bagasse) to produce energy; 12 wind farms, such as in Désirade, Le Moule or Marie-Galante; a geothermal power plant in Bouillante, which uses the energy of water vapor produced by volcanic activity (the plant's electricity production ranks it first nationally); a project to harness the energy of waves and ocean currents; photovoltaic installations that contribute to the operation of solar water heaters for homes and to the development of the electric vehicle sector. Electricity produced by hydropower, which represents 2.2% of total production, comes from dams built on the beds of certain rivers. The water distributed by Guadeloupe's drinking water network comes mainly from Basse Terre, 70% from river intakes and 20% from spring catchments. The remaining 10% comes from boreholes tapping the groundwater of Grande Terre and Marie-Galante. Access to water and sanitation is problematic due to the deteriorated state of the network, which causes many losses in the water supply system. For years, water shortages have been recurrent and have forced "water shifts", mainly in the municipalities of Grande-Terre, which are the most affected, with consequences for private individuals and agricultural activities. According to statistics from the Water Office (2020 data), 61% of drinking water production is wasted, i.e., almost 50 million cubic metres of water per year, due to pipes in poor condition. In addition, 70% of wastewater treatment plants do not meet standards. Although Guadeloupe is one of the safest islands in the Caribbean, it was the most violent overseas French department in 2016. The murder rate is slightly more than that of Paris, at 8.2 per 100,000. The high level of unemployment caused violence and crime to rise, especially in 2009 and 2010, the years following the Great Recession. Residents of Guadeloupe describe the island as a place with little everyday crime, and most violence is caused by the drug trade or domestic disputes. In 2021, additional police officers were deployed to the island in the face of rioting arising out of COVID-19 restrictions. Normally, about 2,000 police officers are present on the island including some 760 active National Gendarmerie of the COMGEND (Gendarmerie Command of Guadeloupe) region plus around 260 reservists. The active Gendarmerie include three Mobile Gendarmerie Squadrons (EGM) and a Republican Guard Intervention Platoon (PIGR). The Maritime Gendarmerie deploys the patrol boat Violette in the territory, which is planned for replacement by a new PCG-NG patrol boat in about 2025–2026.
[ { "paragraph_id": 0, "text": "Guadeloupe (/ˌɡwɑːdəˈluːp/; French: [ɡwad(ə)lup] ; Guadeloupean Creole French: Gwadloup, IPA: [ɡwadlup]) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the two inhabited Îles des Saintes—as well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat and north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe-à-Pitre, both located on Grande-Terre Island. It had a population of 384,239 in 2019.", "title": "" }, { "paragraph_id": 1, "text": "Like the other overseas departments, it is an integral part of France. As a constituent territory of the European Union and the Eurozone, the euro is its official currency and any European Union citizen is free to settle and work there indefinitely. However, as an overseas department, it is not part of the Schengen Area. The region formerly included Saint Barthélemy and Saint Martin, which were detached from Guadeloupe in 2007 following a 2003 referendum.", "title": "" }, { "paragraph_id": 2, "text": "Christopher Columbus visited Guadeloupe in 1493, during his second voyage, and gave the island its name. The official language is French; Antillean Creole is also spoken.", "title": "" }, { "paragraph_id": 3, "text": "The archipelago was called Karukera (or \"The Island of Beautiful Waters\") by the native Arawak people.", "title": "Etymology" }, { "paragraph_id": 4, "text": "Christopher Columbus named the island Santa María de Guadalupe in 1493 after Our Lady of Guadalupe, a shrine to the Virgin Mary venerated in the Spanish town of Guadalupe, Extremadura. When the area became a French colony, the Spanish name was retained - though altered to French orthography and phonology. The islands are locally known as Gwada.", "title": "Etymology" }, { "paragraph_id": 5, "text": "The islands were first populated by indigenous peoples of the Americas, possibly as far back as 3000 BC. The Arawak people are the first identifiable group, but they were later displaced circa 1400 by Kalina-Carib peoples.", "title": "History" }, { "paragraph_id": 6, "text": "Christopher Columbus was the first European to see Guadeloupe, landing in November 1493 and giving it its current name. Several attempts at colonisation by the Spanish in the 16th century failed due to attacks from the native peoples. In 1626, the French, under the trader and adventurer Pierre Belain d'Esnambuc, began to take an interest in Guadeloupe, expelling Spanish settlers. The Compagnie des Îles de l'Amérique settled in Guadeloupe in 1635, under the direction of the French colonial leaders Charles Liénard de L'Olive and Jean du Plessis d'Ossonville; they formally took possession of the island for France and brought in French farmers to colonise the land. This led to the death of many indigenous people by disease and violence. By 1640, however, the Compagnie des Îles de l'Amérique had gone bankrupt, and they thus sold Guadeloupe to Charles Houël du Petit Pré who began plantation agriculture, with the first African slaves arriving in 1650. Slave resistance was immediately widespread, with an open uprising in 1656 lasting several weeks and a simultaneous spate of mass desertions that lasted at least two years until the French compelled indigenous peoples to stop assisting them. Ownership of the island passed to the French West India Company before it was annexed to France in 1674 under the tutelage of their Martinique colony. Institutionalised slavery, enforced by the Code Noir from 1685, led to a booming sugar plantation economy.", "title": "History" }, { "paragraph_id": 7, "text": "During the Seven Years' War, the British captured and occupied the islands until the 1763 Treaty of Paris. During that time, Pointe-à-Pitre became a major harbour, and markets in Britain's North American colonies were opened to Guadeloupean sugar, which was traded for foodstuffs and timber. The economy expanded quickly, creating vast wealth for the French colonists. So prosperous was Guadeloupe at the time that, under the 1763 Treaty of Paris, France forfeited its Canadian colonies in exchange for the return of Guadeloupe. Coffee planting began in the late 1720s, also worked by slaves and, by 1775, cocoa had become a major export product as well.", "title": "History" }, { "paragraph_id": 8, "text": "The French Revolution brought chaos to Guadeloupe. Under new revolutionary law, freedmen were entitled to equal rights. Taking advantage of the chaotic political situation, Britain invaded Guadeloupe in 1794. The French responded by sending an expeditionary force led by Victor Hugues, who retook the islands and abolished slavery. More than 1,000 French colonists were killed in the aftermath.", "title": "History" }, { "paragraph_id": 9, "text": "In 1802, the French Consulate government reinstated the pre-revolutionary government and slavery, prompting a slave rebellion led by Louis Delgrès. The French authorities responded quickly, culminating in the Battle of Matouba on 28 May 1802. Realising they had no chance of success, Delgrès and his followers committed mass suicide by deliberately exploding their gunpowder stores. In 1810, the British captured the island again, handing it over to Sweden under the 1813 Treaty of Stockholm.", "title": "History" }, { "paragraph_id": 10, "text": "In the 1814 Treaty of Paris, Sweden ceded Guadeloupe to France, giving rise to the Guadeloupe Fund. In 1815, the Treaty of Vienna acknowledged French control of Guadeloupe.", "title": "History" }, { "paragraph_id": 11, "text": "Slavery was abolished in the French Empire in 1848. After 1854, indentured labourers from the French colony of Pondicherry in India were brought in. Emancipated slaves had the vote from 1849, but French nationality and the vote were not granted to Indian citizens until 1923, when a long campaign, led by Henry Sidambarom, finally achieved success.", "title": "History" }, { "paragraph_id": 12, "text": "In 1936, Félix Éboué became the first black governor of Guadeloupe. During the Second World War Guadeloupe initially came under the control of the Vichy government, later joining Free France in 1943. In 1946, the colony of Guadeloupe became an overseas department of France.", "title": "History" }, { "paragraph_id": 13, "text": "Tensions arose in the post-war era over the social structure of Guadeloupe and its relationship with mainland France. The 'Massacre of St Valentine' occurred in 1952, when striking factory workers in Le Moule were shot at by the Compagnies républicaines de sécurité, resulting in four deaths. In May 1967 racial tensions exploded into rioting following a racist attack on a black Guadeloupean, Raphael Balzinc, resulting in eight deaths.", "title": "History" }, { "paragraph_id": 14, "text": "An independence movement grew in the 1970s, prompting France to declare Guadeloupe a French region in 1974. The Union populaire pour la libération de la Guadeloupe (UPLG) campaigned for complete independence, and by the 1980s the situation had turned violent with the actions of groups such as Groupe de libération armée (GLA) and Alliance révolutionnaire caraïbe (ARC).", "title": "History" }, { "paragraph_id": 15, "text": "Greater autonomy was granted to Guadeloupe in 2000. Through a referendum in 2003, Saint-Martin and Saint Barthélemy voted to separate from the administrative jurisdiction of Guadeloupe, this being fully enacted by 2007.", "title": "History" }, { "paragraph_id": 16, "text": "In January 2009, labour unions and others known as the Liyannaj Kont Pwofitasyon went on strike for more pay. Strikers were angry with low wages, the high cost of living, high levels of poverty relative to mainland France and levels of unemployment that are amongst the worst in the European Union. The situation quickly escalated, exacerbated by what was seen as an ineffectual response by the French government, turning violent and prompting the deployment of extra police after a union leader (Jacques Bino) was shot and killed. The strike lasted 44 days and had also inspired similar actions on nearby Martinique. President Nicolas Sarkozy later visited the island, promising reform. Tourism suffered greatly during this time and affected the 2010 tourist season as well.", "title": "History" }, { "paragraph_id": 17, "text": "Guadeloupe is an archipelago of more than 12 islands, as well as islets and rocks situated where the northeastern Caribbean Sea meets the western Atlantic Ocean. It is located in the Leeward Islands in the northern part of the Lesser Antilles, a partly volcanic island arc. To the north lie Antigua and Barbuda and the British Overseas Territory of Montserrat, with Dominica lying to the south.", "title": "Geography" }, { "paragraph_id": 18, "text": "The two main islands are Basse-Terre (west) and Grande-Terre (east), which form a butterfly shape as viewed from above, the two 'wings' of which are separated by the Grand Cul-de-Sac Marin, Rivière Salée [fr] and Petit Cul-de-Sac Marin. More than half of Guadeloupe's land surface consists of the 847.8 km Basse-Terre. The island is mountainous, containing such peaks as Mount Sans Toucher (4,442 feet; 1,354 metres) and Grande Découverte (4,143 feet; 1,263 metres), culminating in the active volcano La Grande Soufrière, the highest mountain peak in the Lesser Antilles with an elevation of 1,467 metres (4,813 ft). In contrast Grande-Terre is mostly flat, with rocky coasts to the north, irregular hills at the centre, mangrove at the southwest, and white sand beaches sheltered by coral reefs along the southern shore. This is where the main tourist resorts are found.", "title": "Geography" }, { "paragraph_id": 19, "text": "Marie-Galante is the third-largest island, followed by La Désirade, a north-east slanted limestone plateau, the highest point of which is 275 metres (902 ft). To the south lies the Îles de Petite-Terre, which are two islands (Terre de Haut and Terre de Bas) totalling 2 km.", "title": "Geography" }, { "paragraph_id": 20, "text": "Les Saintes is an archipelago of eight islands of which two, Terre-de-Bas and Terre-de-Haut are inhabited. The landscape is similar to that of Basse-Terre, with volcanic hills and irregular shoreline with deep bays.", "title": "Geography" }, { "paragraph_id": 21, "text": "There are numerous other smaller islands.", "title": "Geography" }, { "paragraph_id": 22, "text": "Basse-Terre is a volcanic island. The Lesser Antilles are at the outer edge of the Caribbean Plate, and Guadeloupe is part of the outer arc of the Lesser Antilles Volcanic Arc. Many of the islands were formed as a result of the subduction of oceanic crust of the Atlantic Plate under the Caribbean Plate in the Lesser Antilles subduction zone. This process is ongoing and is responsible for volcanic and earthquake activity in the region. Guadeloupe was formed from multiple volcanoes, of which only La Grande Soufrière is not extinct. Its last eruption was in 1976, and led to the evacuation of the southern part of Basse-Terre. 73,600 people were displaced throughout three and a half months following the eruption.", "title": "Geography" }, { "paragraph_id": 23, "text": "K–Ar dating indicates that the three northern massifs on Basse-Terre Island are 2.79 million years old. Sections of volcanoes collapsed and eroded within the last 650,000 years, after which the Sans Toucher volcano grew in the collapsed area. Volcanoes in the north of Basse-Terre Island mainly produced andesite and basaltic andesite. There are several beaches of dark or \"black\" sand.", "title": "Geography" }, { "paragraph_id": 24, "text": "La Désirade, east of the main islands, has a basement from the Mesozoic, overlaid with thick limestones from the Pliocene to Quaternary periods.", "title": "Geography" }, { "paragraph_id": 25, "text": "Grande-Terre and Marie-Galante have basements probably composed of volcanic units of Eocene to Oligocene, but there are no visible outcrops. On Grande-Terre, the overlying carbonate platform is 120 metres thick.", "title": "Geography" }, { "paragraph_id": 26, "text": "The islands are part of the Leeward Islands, so called because they are downwind of the prevailing trade winds, which blow out of the northeast. This was significant in the days of sailing ships. Grande-Terre is so named because it is on the eastern, or windward side, exposed to the Atlantic winds. Basse-Terre is so named because it is on the leeward south-west side and sheltered from the winds. Guadeloupe has a tropical climate tempered by maritime influences and the Trade Winds. There are two seasons, the dry season called \"Lent\" from January to June, and the wet season called \"winter\", from July to December.", "title": "Geography" }, { "paragraph_id": 27, "text": "Located in a very exposed region, Guadeloupe and its dependencies have to face many cyclones. The deadliest hurricane to hit Guadeloupe was the Pointe-à-Pitre hurricane of 1776, which killed at least 6,000 people.", "title": "Geography" }, { "paragraph_id": 28, "text": "In 1989, Hurricane Hugo caused severe damage to the islands of the archipelago and left a deep mark on the memory of the local inhabitants. In 1995, three hurricanes (Iris, Luis and Marilyn) hit the archipelago in less than three weeks. Other notable hurricanes include Okeechobee in 1928, Betsy in 1956, Cleo in 1964, Inez in 1966, and Irma and Maria in 2017.", "title": "Geography" }, { "paragraph_id": 29, "text": "With fertile volcanic soils, heavy rainfall and a warm climate, vegetation on Basse-Terre is lush. Most of the islands' forests are on Basse-Terre, containing such species as mahogany, ironwood and chestnut trees. Mangrove swamps line the Salée River. Much of the forest on Grande-Terre has been cleared, with only a few small patches remaining.", "title": "Geography" }, { "paragraph_id": 30, "text": "Between 300 and 1,000 metres (980 and 3,280 ft) of altitude, the rainforest that covers a large part of the island of Basse-Terre develops. There we find the white gum tree, the acomat-boucan or chestnut tree, the marbri or bois-bandé or the oleander; shrubs and herbaceous plants such as the mountain palm, the balisier or ferns; many epiphytes: bromeliads, philodendrons, orchids and lianas. Above 1,000 m (3,300 ft), the humid savannah develops, composed of mosses, lichens, sphagnum or more vigorous plants such as mountain mangrove, high altitude violet or mountain thyme.", "title": "Geography" }, { "paragraph_id": 31, "text": "The dry forest occupies a large part of the islands of Grande-Terre, Marie-Galante, Les Saintes, La Désirade and also develops on the leeward coast of Basse-Terre. The coastal forest is more difficult to develop because of the nature of the soil (sandy, rocky), salinity, sunshine and wind and is the environment where the sea grape, the mancenilla (a very toxic tree whose trunk is marked with a red line), the icaquier or the Coconut tree grow. On the cliffs and in the Arid zones are found cacti such as the cactus-cigar (Cereus), the prickly pear, the chestnut cactus, the \"Tête à l'anglais\" cactus and the aloes.", "title": "Geography" }, { "paragraph_id": 32, "text": "The Mangrove forest that borders some of Guadalupe's coasts is structured in three levels, from the closest to the sea to the farthest. On the first level are the red mangroves; on the second, about 10 metres (33 ft) from the sea, the black mangroves form the shrubby mangrove; on the third level the white mangroves form the tall mangrove. Behind the mangrove, where the tide and salt do not penetrate, a swamp forest sometimes develops, unique in Guadeloupe. The representative species of this environment is the Mangrove-medaille.", "title": "Geography" }, { "paragraph_id": 33, "text": "Few terrestrial mammals, aside from bats and raccoons, are native to the islands. The introduced Javan mongoose is also present on Guadeloupe. Bird species include the endemic purple-throated carib and the Guadeloupe woodpecker. The waters of the islands support a rich variety of marine life.", "title": "Geography" }, { "paragraph_id": 34, "text": "However, by studying 43,000 bone remains from six islands in the archipelago, 50 to 70% of snakes and lizards on the Guadeloupe Islands became extinct after European colonists arrived, who had brought with them mammals such as cats, mongooses, rats, and raccoons, which might have preyed upon the native reptiles.", "title": "Geography" }, { "paragraph_id": 35, "text": "In recent decades, Guadeloupe's natural environments have been affected by hunting and fishing, forest retreat, urbanization and suburbanization. They also suffer from the development of intensive crops (banana and sugar cane, in particular), which reached their peak in the years 1955–75. This has led to the following situation: seagrass beds and reefs have degraded by up to 50% around the large islands; mangroves and mantids have almost disappeared in Marie-Galante, Les Saintes and La Désirade; the salinity of the fresh water table has increased due to \"the intensity of use of the layer\"; and pollution of agricultural origin (pesticides and nitrogenous compounds).", "title": "Geography" }, { "paragraph_id": 36, "text": "In addition, the ChlEauTerre study, unveiled in March 2018, concludes that 37 different anthropogenic molecules (more than half of which come from residues of now-banned pesticides, such as chlordecone) were found in \"79% of the watersheds analyzed in Grande-Terre and 84% in Basse-Terre.\" A report by the Guadeloupe Water Office notes that in 2019 there is a \"generalized degradation of water bodies.\"", "title": "Geography" }, { "paragraph_id": 37, "text": "Despite everything, there is a will to preserve these environments whose vegetation and landscape are preserved in some parts of the islands and constitute a sensitive asset for tourism. These areas are partially protected and classified as ZNIEFF, sometimes with nature reserve status, and several caves are home to protected chiropterans.", "title": "Geography" }, { "paragraph_id": 38, "text": "The Guadalupe National Park was created on 20 February 1989. In 1992, under the auspices of UNESCO, the Biosphere Reserve of the Guadeloupe Archipelago (Réserve de biosphère de l'archipel de la Guadeloupe) was created. As a result, on 8 December 1993, the marine site of Grand Cul-de-sac was listed as a wetland of international importance. The island thus became the overseas department with the most protected areas.", "title": "Geography" }, { "paragraph_id": 39, "text": "The archipelago is crossed by numerous geological faults such as those of la Barre or la Cadoue, while in depth, in front of Moule and La Désirade begins the Désirade Fault, and between the north of Maria-Galante and the south of Grande-Terre begins the Maria Galante Fault. And it is because of these geological characteristics, the islands of the department of Guadeloupe are classified in zone III according to the seismic zoning of France and are subject to a specific risk prevention plan.", "title": "Geography" }, { "paragraph_id": 40, "text": "The 1843 earthquake in the Lesser Antilles is, to this day, the most violent earthquake known. It caused the death of more than a thousand people, as well as major damage in Pointe-à-Pitre.", "title": "Geography" }, { "paragraph_id": 41, "text": "On 21 November 2004, the islands of the department, in particular Les Saintes archipelago, were shaken by a violent earthquake that reached a magnitude of 6.3 on the Richter scale and caused the death of one person, as well as extensive material damage.", "title": "Geography" }, { "paragraph_id": 42, "text": "Guadeloupe recorded a population of 402,119 in the 2017 census. The population is mainly Afro-Caribbean. European, Indian (Tamil, Telugu, and other South Indians), Lebanese, Syrians, and Chinese are all minorities. There is also a substantial population of Haitians in Guadeloupe who work mainly in construction and as street vendors. Basse-Terre is the political capital; however, the largest city and economic hub is Pointe-à-Pitre.", "title": "Demographics" }, { "paragraph_id": 43, "text": "The population of Guadeloupe has been decreasing by 0.8% per year since 2013. In 2017 the average population density in Guadeloupe was 240 inhabitants per square kilometre (620/sq mi), which is very high in comparison to metropolitan France's average of 119 inhabitants per square kilometre (310/sq mi). One third of the land is devoted to agriculture and all mountains are uninhabitable; this lack of space and shelter makes the population density even higher.", "title": "Demographics" }, { "paragraph_id": 44, "text": "The most populous urban unit (agglomeration) is Pointe-à-Pitre-Les Abymes, which covers 11 communes and 65% of the population of the department. The three largest urban units are:", "title": "Demographics" }, { "paragraph_id": 45, "text": "In 2011, life expectancy at birth was recorded at 77.0 years for males and 83.5 for females.", "title": "Demographics" }, { "paragraph_id": 46, "text": "Medical centres in Guadeloupe include: University Hospital Centre (CHU) in Pointe-à-Pitre, Regional Hospital Centre (CHR) in Basse-Terre, and four hospitals located in Capesterre-Belle-Eau, Pointe-Noire, Bouillante and Saint-Claude.", "title": "Demographics" }, { "paragraph_id": 47, "text": "The Institut Pasteur de la Guadeloupe, is located in Pointe-à-Pitre and is responsible for researching environmental hygiene, vaccinations, and the spread of tuberculosis and other mycobacteria.", "title": "Demographics" }, { "paragraph_id": 48, "text": "The relative wealth of Guadeloupe contrasts with the extreme poverty of several islands in the Caribbean region, which makes the community an attractive place for the populations of some of these territories. In addition, other factors, such as political instability and natural disasters, explain this immigration. As early as the 1970s, the first illegal immigrants of Haitian origin arrived in Guadeloupe to meet a need for labour in the agricultural sector; alongside this Haitian immigration, which is more visible because it is more numerous, Guadeloupe has also seen the arrival and settlement of populations from the island of Dominica and the Dominican Republic. In 2005, the prefecture, which represents the State in Guadeloupe, reported figures of between 50,000 and 60,000 foreigners in the department.", "title": "Demographics" }, { "paragraph_id": 49, "text": "Created in 1963 by Michel Debré, Bumidom's objective was to \"[...] contribute to the solution of demographic problems in the overseas departments\". To this end, its missions were multiple: information for future emigrants, vocational training, family reunification and management of reception centres. At the time, this project was also seen as a means to diminish the influence of the West Indian independence movements, which were gaining strength in the 1960s.", "title": "Demographics" }, { "paragraph_id": 50, "text": "Between 1963 and 1981, an estimated 16,562 Guadeloupeans emigrated to metropolitan France through Bumidom. And the miniseries Le Rêve français (The French Dream) sets out to recount some of the consequences of the emigration of West Indians and Reunionese to France.", "title": "Demographics" }, { "paragraph_id": 51, "text": "An estimated 50,000 Guadeloupeans and Martinicans participated in the construction of the Panama Canal between 1904 and 1914. In 2014, it was estimated that there were between 60,000 and 70,000 descendants of these West Indians living in Panama. Other waves of migration to North America, especially to Canada, occurred at the beginning of the 20th century.", "title": "Demographics" }, { "paragraph_id": 52, "text": "Together with Martinique, La Réunion, Mayotte and French Guiana, Guadeloupe is one of the overseas departments, being both a region and a department combined into one entity. It is also an outermost region of the European Union. The inhabitants of Guadeloupe are French citizens with full political and legal rights.", "title": "Governance" }, { "paragraph_id": 53, "text": "Legislative powers are centred on the separate departmental and regional councils. The elected president of the Departmental Council of Guadeloupe is currently Guy Losbar (1.7.2021); its main areas of responsibility include the management of a number of social and welfare allowances, of junior high school (collège) buildings and technical staff, and local roads and school and rural buses. The Regional Council of Guadeloupe is a body, elected every six years, consisting of a president (currently Ary Chalus) and eight vice-presidents. The regional council oversees secondary education, regional transportation, economic development, the environment, and some infrastructure, among other things.", "title": "Governance" }, { "paragraph_id": 54, "text": "Guadeloupe elects one deputy from one of each of the first, second, third, and fourth constituencies to the National Assembly of France. Three senators are chosen for the Senate of France by indirect election. For electoral purposes, Guadeloupe is divided into two arrondissements (Basse-Terre and Pointe-à-Pitre), and 21 cantons.", "title": "Governance" }, { "paragraph_id": 55, "text": "Most of the French political parties are active in Guadeloupe. In addition there are also regional parties such as the Guadeloupe Communist Party, the Progressive Democratic Party of Guadeloupe, the Guadeloupean Objective, the Pluralist Left, and United Guadeloupe, Solidary and Responsible.", "title": "Governance" }, { "paragraph_id": 56, "text": "The prefecture (regional capital) of Guadeloupe is Basse-Terre. Local services of the state administration are traditionally organised at departmental level, where the prefect represents the government.", "title": "Governance" }, { "paragraph_id": 57, "text": "For the purposes of local government, Guadeloupe is divided into 32 communes. Each commune has a municipal council and a mayor. Revenues for the communes come from transfers from the French government, and local taxes. Administrative responsibilities at this level include water management, civil register, and municipal police.", "title": "Governance" }, { "paragraph_id": 58, "text": "From a geostrategic point of view, Guadeloupe is located in a central part of the Caribbean archipelago between the Atlantic Ocean and the Caribbean Sea. This location in the region allows France to reach a large part of the eastern coast of the American continent. The exclusive economic zone formed by Guadeloupe and Martinique covers just over 126,146 square kilometres. In 1980 France established its maritime boundaries in the area by signing a Treaty with Venezuela. This provides France with important fishing resources.", "title": "Governance" }, { "paragraph_id": 59, "text": "This offers France important fishing resources and independence to develop a sovereign policy of underwater research and protection (protection of humpback whales, Cousteau reserve, protection of coral reefs). Because of its geographical position, Guadeloupe allows France to participate in political and diplomatic dialogues at both the regional (Lesser and Greater Antilles) and continental (Latin and North America) levels.", "title": "Governance" }, { "paragraph_id": 60, "text": "The signing of the Regional Convention for the Internationalisation of Enterprise (CRIE), membership of the Economic Commission for Latin America and the Caribbean (ECLAC) and membership of the Association of Caribbean States (ACS) are milestones that have enabled Guadeloupe to develop its bilateral or multilateral relations within the framework of international agreements or institutions.11 The development of bilateral and multilateral economic partnerships with other Caribbean and American states is based on the modernisation of the autonomous port of Guadeloupe and the importance of the Guadeloupe-Polo Caribe international airport.", "title": "Governance" }, { "paragraph_id": 61, "text": "As a part of France, Guadeloupe uses the French tricolour as its flag and La Marseillaise as its anthem. However, a variety of other flags are also used in unofficial or informal contexts as the flag of Guadeloupe, most notably the sun-based flag. Independentists also have their own flag suggested by the People's Union for the Liberation of Guadeloupe.", "title": "Governance" }, { "paragraph_id": 62, "text": "The economy of Guadeloupe depends on tourism, agriculture, light industry and services. It is reliant upon mainland France for large subsidies and imports and public administration is the largest single employer on the islands. Unemployment is especially high among the youth population.", "title": "Economy" }, { "paragraph_id": 63, "text": "In 2017, the Gross domestic product (GDP) of Guadeloupe was €9.079 billion, and showed 3.4% growth. The GDP per capita of Guadeloupe was €23,152. Imports amounted to €3.019 billion, and exports to €1.157 billion. The main export products are bananas, sugar and rum. Banana exports suffered in 2017 from damages due to Hurricane Irma and Hurricane Maria.", "title": "Economy" }, { "paragraph_id": 64, "text": "Tourism is one of the most prominent sources of income, with most visitors coming from France and North America. An increasingly large number of cruise ships visit Guadeloupe, the cruise terminal of which is in Pointe-à-Pitre.", "title": "Economy" }, { "paragraph_id": 65, "text": "The traditional sugar cane crop is slowly being replaced by other crops, such as bananas (which now supply about 50% of export earnings), eggplant, guinnep, noni, sapotilla, giraumon squash, yam, gourd, plantain, christophene, cocoa, jackfruit, pomegranate, and many varieties of flowers. Other vegetables and root crops are cultivated for local consumption, although Guadeloupe is dependent upon imported food, mainly from the rest of France.", "title": "Economy" }, { "paragraph_id": 66, "text": "Of the various light industries, sugar and rum production, solar energy, cement, furniture and clothing are the most prominent. Most manufactured goods and fuel are imported.", "title": "Economy" }, { "paragraph_id": 67, "text": "Guadeloupe's official language is French, which is spoken by nearly all of the population. Most residents also speak Guadeloupean Creole, a French-based creole language.", "title": "Culture" }, { "paragraph_id": 68, "text": "Guadeloupean Creole emerged as a result of the need for all ethnic groups (French, African and Amerindian) to be able to understand each other. This language is therefore the result of a mixture created in the 17th century in response to a communicative emergency. At the time of the colony's foundation, a majority of the French population did not speak the standard French language but local dialects and languages, such as Breton and Norman, while the Africans came from a variety of West and Central African ethnic groups and lacked a common language themselves. The Creole language emerged as a lingua franca and ultimately became the native language of much of the population.", "title": "Culture" }, { "paragraph_id": 69, "text": "Moreover, Terre-de-Haut and Terre-de-Bas, in the Saintes archipelago, due to their settlement history (Breton, Norman and Poitevin settlers), have their own Creoles which differ from Guadeloupean Creole by their French pronunciations, their particular expressions, their syntax and their sonorities. Although it is not transcribed, these islanders call their Creole \"patois\" or \"language of St. Martin\" and actively ensure its transmission and perpetuation by their descendants in vernacular form.", "title": "Culture" }, { "paragraph_id": 70, "text": "A Guadeloupean béké first wrote Creole at the end of the 17th century, transcribing it using French orthography.", "title": "Culture" }, { "paragraph_id": 71, "text": "As Guadeloupe is a French department, French is the official language. However, Guadeloupean French (in contact with Creole) has certain linguistic characteristics that differ from those of standard metropolitan French. Recently, a very detailed study of the phonetic aspect of Guadeloupean French has been undertaken (this would be the first study to deal with both the acoustic and the phonological and perceptual aspects of Guadeloupean French in particular and West Indian French in general). It is also concerned with the reading varieties of Guadeloupean French (acrolect, mesolect and basilect).", "title": "Culture" }, { "paragraph_id": 72, "text": "In recent decades there has been a revival of Creole, which has stimulated the appearance of books of short stories and poetry published in Creole and French over the last ten years. In this context, Hector Poullet is a pioneer of Creole-mediated dictation. Creole is also a very colourful language and very philosophical in its expressions and phrases, which, translated literally into French, can be confusing. The representatives of the older generations are not always fluent in French, but in Guadeloupean Creole.", "title": "Culture" }, { "paragraph_id": 73, "text": "Today, the question as to whether French and Creole are stable in Guadeloupe, i.e. whether both languages are practised widely and competently throughout society, remains a subject of active research.", "title": "Culture" }, { "paragraph_id": 74, "text": "Figures in 2020 state that 96% of the population is Christian (of these, approximately 86% are Roman Catholic, 8% Protestant and 6% other Christian); of the other 4%, most have no religion. Guadeloupe is in the Catholic diocese of Basse-Terre (et Pointe-à-Pitre).", "title": "Culture" }, { "paragraph_id": 75, "text": "In 1685, the Black Code announced the Christian religion in its Catholic form as the only authorized religion in the French West Indies, thus excluding Jews and the various Protestant groups from practicing their beliefs, and imposed the forced conversion of the newly arrived slaves and the baptism of the older ones. Guadeloupe adopted the code on 10 December 1685.", "title": "Culture" }, { "paragraph_id": 76, "text": "This was followed by a rapid fashion among the slaves, since this religion offered them a spiritual refuge and allowed them to safeguard some of their African beliefs and customs, thus marking the beginning of a religious syncretism. Since the 1970s, new religions and groups have been 'competing' with the Catholic Church, such as the Evangelical Pentecostal Church, the Seventh-day Adventist Church, the Bible Students or Jehovah's Witnesses, and the Church of Jesus Christ of Latter-day Saints (Mormons).", "title": "Culture" }, { "paragraph_id": 77, "text": "Administratively, the territory of Guadeloupe is part of the Diocese of Basse-Terre and Pointe-à-Pitre, attached to the Catholic Church in France. The diocese includes the territories of Guadeloupe, St. Barthélemy and St. Martin and the number of faithful is estimated at 400,000. In 2020 there were 59 priests active in the diocese. The episcopal see is located in Basse-Terre, in the cathedral of Notre-Dame-de-Guadeloupe.", "title": "Culture" }, { "paragraph_id": 78, "text": "Hinduism, which accompanied the Indians who came to work in Guadeloupe in the mid-19th century, has expanded since the 1980s. The Indian community has its own tradition that comes from India. It is the mayé men, a distorted pronunciation of the name of the Tamil Indian goddess Mariamman. There are no less than 400 temples in the archipelago.", "title": "Culture" }, { "paragraph_id": 79, "text": "Islam made its appearance in the French West Indies in the 1970s, first in Martinique. According to the president of the Muslim association of Guadeloupe, there are between 2,500 and 3,000 Muslims in the department. The island has two mosques. Judaism has been present in Guadeloupe since the arrival of Dutch settlers expelled from the northeast of present-day Brazil in 1654. There is a synagogue and an Israelite cultural community. Guadeloupeans of Syrian and Lebanese origin practice Catholicism in its Maronite form. Rastafari has been attractive to some young people since the 1970s following its emergence in Jamaica. The quimbois or kenbwa, practiced in Guadeloupe, refer to magical-religious practices derived from Christian and African syncretism.", "title": "Culture" }, { "paragraph_id": 80, "text": "Guadeloupe has always had a rich literary output, with Guadeloupean author Saint-John Perse winning the 1960 Nobel Prize in Literature. Other prominent writers from Guadeloupe or of Guadeloupean descent include Maryse Condé, Simone Schwarz-Bart, Myriam Warner-Vieyra, Oruno Lara, Daniel Maximin, Paul Niger, Guy Tirolien and Nicolas-Germain Léonard.", "title": "Culture" }, { "paragraph_id": 81, "text": "Music and dance are also very popular, and the interaction of African, French and Indian cultures has given birth to some original new forms specific to the archipelago, most notably zouk music. Since the 1970s, Guadeloupean music has increasingly claimed the local language, Guadeloupean Creole as the preferred language of popular music. Islanders enjoy many local dance styles including zouk, zouk-love, compas, as well as the modern international genres such as hip hop, etc.", "title": "Culture" }, { "paragraph_id": 82, "text": "Traditional Guadeloupean music includes biguine, kadans, cadence-lypso, and gwo ka. Popular music artists and bands such as Experience 7, Francky Vincent, Kassav' (which included Patrick St-Eloi, and Gilles Floro) embody the more traditional music styles of the island, whilst other musical artists such as the punk band The Bolokos (1) or Tom Frager focus on more international genres such as rock or reggae. Many international festivals take place in Guadeloupe, such as the Creole Blues Festival on Marie-Galante. All the Euro-French forms of art are also ubiquitous, enriched by other communities from Brazil, Dominican Republic, Haiti, India, Lebanon, Syria who have migrated to the islands.", "title": "Culture" }, { "paragraph_id": 83, "text": "Classical music has seen a resurgent interest in Guadeloupe. One of the first known composers of African origin was born in Guadeloupe, Le Chevalier de Saint-Georges, a contemporary of Joseph Haydn and Wolfgang Amadeus Mozart, and a celebrated figure in Guadeloupe. Several monuments and cites are dedicated to Saint-Georges in Guadeloupe, and there is an annual music festival, Festival International de Musique Saint-Georges, dedicated in his honour. The festival attracts classical musicians from all over the world and is one of the largest classical music festivals in the Caribbean.", "title": "Culture" }, { "paragraph_id": 84, "text": "Another element of Guadeloupean culture is its dress. A few women (particularly of the older generation) wear a unique style of traditional dress, with many layers of colourful fabric, now only worn on special occasions. On festive occasions they also wore a madras (originally a \"kerchief\" from South India) headscarf tied in many different symbolic ways, each with a different name. The headdress could be tied in the \"bat\" style, or the \"firefighter\" style, as well as the \"Guadeloupean woman\". Jewellery, mainly gold, is also important in the Guadeloupean lady's dress, a product of European, African and Indian inspiration.", "title": "Culture" }, { "paragraph_id": 85, "text": "Traditional dress, inherited today, is the result of a long cultural mix involving Africa, Asia and Europe. This cultural mix was initially based on triangular trade and later on a more globalized trade that included importing fabrics from the Orient. For example, in the traditional Guadeloupean costume, we find Asian influences with the use of madras cloth from India, African and European influences (Spanish in this case) with the use of the headscarf for covering and again European influences (French in this case) in the adoption of the lace petticoat from Brittany.", "title": "Culture" }, { "paragraph_id": 86, "text": "The clothing worn in Guadeloupe has mutated over the centuries and has undergone changes that reflect the social conditions and the evolution of society, from the time of slavery to the present day. During the second half of the 17th century, slaves arriving in Guadeloupe were naked or nearly naked. They were then forced to wear rags or the owner's worn-out clothes, which were quickly discarded, barely concealing their nakedness. Or slaves working in the fields wore the \"three-hole\" dress, made of a vegetable fiber fabric in which three holes were made (two for the arms and one for the head). Under pressure from the church and the authorities, slaves were forced to wear the \"three-hole\" dress.", "title": "Culture" }, { "paragraph_id": 87, "text": "Under pressure from the church and as soon as the Black Code was enforced in 1685, owners were required to provide \"each slave with two suits of cloth or four alders [about 7.5 m; 81 sq ft] of cloth a year... art.25\" which only modestly improved their conditions. However, the poor quality of the clothing worn during slavery must be qualified, as it could vary according to the day of the week (daily clothing, Sunday clothing, clothing for special occasions), or according to the status of the slaves employed in the houses.", "title": "Culture" }, { "paragraph_id": 88, "text": "In fact, the latter could be dressed in clothes of different quality according to the job they performed on the property. For example, in the case of the maids, their clothes could be of better quality because they had to reflect the image of success and wealth that their master wanted to project.", "title": "Culture" }, { "paragraph_id": 89, "text": "From the 17th century onwards, the development of the Creole costume coincided with the desire of slave women to regain their dignity, with the evolution of their employment within the household or Guadeloupean society (specialization in the sewing and dressmaking trades), with the evolution of Guadeloupean society (free women of colour, freed slaves, mulatto women) and with the influence of the European fashionable costume, which the housewife represented.", "title": "Culture" }, { "paragraph_id": 90, "text": "After the abolition of slavery, the main periods of traditional Guadeloupean dress were the following:", "title": "Culture" }, { "paragraph_id": 91, "text": "As a result of this fusion of African and European dress codes over the centuries, including materials from distant origins, the Guadeloupean wardrobe includes Creole garments such as: the cozy dress or wòb ti-do, an everyday dress also called \"à corps\" because it fits the body like a corset; the skirt-shirt, in ceremonial dress (the shirt is made of very fine batiste trimmed with lace, which stops at the elbows and is buttoned with golden buttons. The skirt, full and very wide in the back with tail, is knotted above the breasts); the bodice dress which is distinguished from the others by the quantity and richness of the fabric used (satin, brocade satin, satin).", "title": "Culture" }, { "paragraph_id": 92, "text": "Guadeloupean cuisine is a mixture of African, European and Asian influences. It uses first of all agricultural products such as poyo (plantain more commonly called green plantain or ti-nain), bread plantain, okra, cabbage, pigeon peas, cristofina, yam or sweet potato.", "title": "Culture" }, { "paragraph_id": 93, "text": "The sea and rivers provide rays, snappers, octopus (chatou), lambis, burgots (a type of large whelk), sea urchins and ouassous. Orchards provide fruits such as soursop, red jambosier, passion fruit (marakoudja), mango, quenette, and citrus. Condiments sometimes added to dishes are habanero chili, cive (a kind of onion from the country) or roucou seeds that give a red tint to sauces.", "title": "Culture" }, { "paragraph_id": 94, "text": "The cooking, often spicy and seasoned, results from soaking meat or fish for hours before cooking, to enhance its flavour. Typical dishes are: fish blaff, dombrés, bébélé (from Marie-Galante), colombo (equivalent to Indian curry) and matété (rice cooked with crab). As for appetizers or snacks, there are morcillas criollas, accras, cassava cakes and bokit.", "title": "Culture" }, { "paragraph_id": 95, "text": "As for desserts, there are blancmange, sorbets or various fruit salads. Pastries include pâtés with jam, tournament d'amour (in Les Saintes), caca bœuf (in Marie-Galante) or sacristain. Pain natté, a local brioche bread, is often eaten.", "title": "Culture" }, { "paragraph_id": 96, "text": "There are local productions of candied fruits (elderberry, pineapple, carambola) and jams (guava, banana, coconut). Sorbets such as coconut sherbet or snowball made with crushed ice to which a syrup (mint, grenadine) is added are also consumed. Sweets include coconut sugar, kilibibi and konkada (of Beninese origin).", "title": "Culture" }, { "paragraph_id": 97, "text": "In the category of beverages, the consumption of soft drinks is very important in Guadeloupe, as well as that of a drink locally nicknamed black beer. In addition, it is not uncommon to see vendors of sugar cane juice or coconut water on the roads. Chaudeau is consumed on special occasions (weddings, baptisms, communions) and is a Guadeloupean-style eggnog eaten with a whipped cake (génoise). The rum, whose consumption is culturally imbricated in the Guadeloupean society, comes in particular from one of the ten distilleries distributed in the Guadeloupean territory and that produce the rums of Guadeloupe.", "title": "Culture" }, { "paragraph_id": 98, "text": "At Christmas, families and friends gather during the chanté Nwel, an opportunity to sing carols and celebrate. After the vacations, rehearsals begin for the Guadeloupe carnival. Carnival groups parade through the streets every Sunday afternoon until the Carnival festivities in February or March. For example, the groups with skins, the Akiyo group are groups composed only of large percussion and lambi shell instruments. They have the particularity of having no brass instruments in the band, no choreography, they often parade without themed costumes. Since 2014, the Carnival in kabwèt of Marie-Galante has been registered in the inventory of the intangible heritage of France at UNESCO.", "title": "Culture" }, { "paragraph_id": 99, "text": "Shrove Tuesday is the big party where carnival groups compete in the main town, Basse-Terre, or in Pointe-à-Pitre, for the best costumes, the best music or the best choreography whose theme is imposed by the carnival committees. The next day, on Ash Wednesday, the day that ends the carnival, the mascot king of the carnival nicknamed Vaval is burned, which signals the end of the festivities, everyone parades in black and white (to mark Vaval's mourning), and then the forty days of Lent begin. Most of the population is Catholic and respects this period. But, given the great fondness for festivities, on the \"Thursday of Lent\" a parade is organized in red and black identical to that of Carnival, with groups of musicians preceded by people parading.", "title": "Culture" }, { "paragraph_id": 100, "text": "After this period of deprivation, the Easter celebrations take place, during which families usually go camping on the beach and eat traditional and very popular dishes based on crabs: matété (rice cooked with crab), calalou (crabs with wooden leaves accompanied by white rice) or dombrés with crabs (small balls of flour cooked with crab).", "title": "Culture" }, { "paragraph_id": 101, "text": "Football is popular in Guadeloupe, and several notable footballers are of Guadeloupean origin, including Marius Trésor, Stéphane Auvray, Ronald Zubar and his younger brother Stéphane, Miguel Comminges, Dimitri Foulquier, Bernard Lambourde, Anthony Martial, Alexandre Lacazette, Thierry Henry, Lilian Thuram, William Gallas, Layvin Kurzawa, Mikael Silvestre, Thomas Lemar, Mathys Tel, Kingsley Coman and David Regis.", "title": "Sport" }, { "paragraph_id": 102, "text": "The Guadeloupe football team were 2007 CONCACAF Gold Cup semi-finalists, defeated by Mexico.", "title": "Sport" }, { "paragraph_id": 103, "text": "Basketball is popular. Best known players are the NBA players Rudy Gobert, Mickaël Piétrus, Johan Petro, Rodrigue Beaubois, and Mickael Gelabale (now playing in Russia), who were born on the island.", "title": "Sport" }, { "paragraph_id": 104, "text": "Several track and field athletes, such as Marie-José Pérec, Patricia Girard-Léno, Christine Arron, and Wilhem Belocian, are also Guadeloupe natives.", "title": "Sport" }, { "paragraph_id": 105, "text": "The island has produced many world-class fencers. Yannick Borel, Daniel Jérent, Ysaora Thibus, Anita Blaze, Enzo Lefort and Laura Flessel were all born and raised in Guadeloupe. According to olympic gold medalist and world champion Yannick Borel, there is a good fencing school and a culture of fencing in Guadeloupe.", "title": "Sport" }, { "paragraph_id": 106, "text": "Even though Guadeloupe is part of France, it has its own sports teams. Rugby union is a small but rapidly growing sport in Guadeloupe.", "title": "Sport" }, { "paragraph_id": 107, "text": "The island is internationally known for hosting the Karujet Race – Jet Ski World Championship since 1998. This nine-stage, four-day event attracts competitors from around the world (mostly Caribbeans, Americans, and Europeans). The Karujet, generally made up of seven races around the island, has an established reputation as one of the most difficult championships in which to compete.", "title": "Sport" }, { "paragraph_id": 108, "text": "The Route du Rhum is one of the most prominent nautical French sporting events, occurring every four years.", "title": "Sport" }, { "paragraph_id": 109, "text": "Bodybuilder Serge Nubret was born in Anse-Bertrand, Grande-Terre, representing the French state in various bodybuilding competitions throughout the 1960s and 1970s including the IFBB's Mr. Olympia contest, taking 3rd place every year from 1972 to 1974, and 2nd place in 1975. Bodybuilder Marie-Laure Mahabir also hails from Guadeloupe.", "title": "Sport" }, { "paragraph_id": 110, "text": "The country has a passion for cycling. It hosted the French Cycling Championships in 2009 and continues to host the Tour de Guadeloupe every year.", "title": "Sport" }, { "paragraph_id": 111, "text": "Guadeloupe continues to host the Orange Open de Guadeloupe tennis tournament (since 2011).", "title": "Sport" }, { "paragraph_id": 112, "text": "The Tour of Guadeloupe sailing, which was founded in 1981.", "title": "Sport" }, { "paragraph_id": 113, "text": "In boxing, Ludovic Proto - as an amateur, he competed in the 1988 Summer Olympics in the men's light welterweight division. As a professional, he was a former French and European welterweight champion;", "title": "Sport" }, { "paragraph_id": 114, "text": "Gilbert Delé - as a professional, he was a former French and European light-middleweight champion, then he won the WBA world light-middleweight title in 1991;", "title": "Sport" }, { "paragraph_id": 115, "text": "Jean-Marc Mormeck - as a professional, he was a former French light heavyweight champion and two-time unified world cruiserweight champion—held the WBA, WBC, and The Ring titles twice between 2005 and 2007).", "title": "Sport" }, { "paragraph_id": 116, "text": "Guadeloupe is served by a number of airports; most international flights use Pointe-à-Pitre International Airport. Boats and cruise ships frequent the islands, using the ports at Pointe-à-Pitre and Basse-Terre.", "title": "Transport" }, { "paragraph_id": 117, "text": "On 9 September 2013 the county government voted in favour of constructing a tramway in Pointe-à-Pitre. The first phase will link northern Abymes to downtown Pointe-à-Pitre by 2019. The second phase, scheduled for completion in 2023, will extend the line to serve the university.", "title": "Transport" }, { "paragraph_id": 118, "text": "The Guadeloupe academic region includes only the Guadeloupe academy. It employs 9,618 people and its operating budget was €714.3 million for 2018–2019. The territory has 300 elementary schools, including 1 private kindergarten under contract and 14 private elementary schools under contract. It also has 52 middle schools, including 6 private under contract. And finally, it has 38 high schools, 13 of which are private under contract.", "title": "Education" }, { "paragraph_id": 119, "text": "During the 2018–2019 school year were enrolled at Guadeloupe Academy:", "title": "Education" }, { "paragraph_id": 120, "text": "The islands of Guadeloupe are also home to two campuses of the University of the French Antilles, Camp-Jacob in Saint-Claude and Fouillole in Pointe-à-Pitre, the latter being the headquarters of the institution. Student residences are located around each campus. Furthermore, a satellite campus dedicated to healthcare is located in the vicinity of the University Hospital Centre of Pointe-à-Pitre, many schools for apprentices are located throughout the archipelago, an Arts and Crafts Centre acting as local school for fine art is located in Bergevin, Pointe-à-Pitre, and, finally, three sites of the regional second chance school are implanted in various high schools.", "title": "Education" }, { "paragraph_id": 121, "text": "The island has great potential for solar, wind and marine energy, but by 2018, biomass and coal energy and petroleum hydrocarbons are still the most used.", "title": "Infrastructure" }, { "paragraph_id": 122, "text": "The Energy transition Law (TECV) provides for 50% renewable energy by 2020 in the territory. And the Guadeloupe EPP plans to develop 66 MW of additional biomass capacity between 2018 and 2023, including 43 MW to replace coal.", "title": "Infrastructure" }, { "paragraph_id": 123, "text": "For example, the Albioma Caraïbes (AC) coal-fired power plant will be converted to biomass to help increase the share of renewables in Guadeloupe's energy mix from 20.5% to 35%, thereby mitigating the island's dependence on fossil fuels and reducing acidic air pollution and the production of toxic and bottom ash.", "title": "Infrastructure" }, { "paragraph_id": 124, "text": "This 34 MW power plant, producing 260 GWh/year of electricity in 2018 (i.e. 15% of the island's needs), should reduce 265 000 t of CO2 equivalent/year throughout the chain (−87% once converted to biomass compared to the previous situation, coal).", "title": "Infrastructure" }, { "paragraph_id": 125, "text": "Guadeloupe has an electricity production plant, in Le Moule, based on the sugar cane agricultural sector, which recovers the residues from sugar cane crushing (bagasse) to produce energy; 12 wind farms, such as in Désirade, Le Moule or Marie-Galante; a geothermal power plant in Bouillante, which uses the energy of water vapor produced by volcanic activity (the plant's electricity production ranks it first nationally); a project to harness the energy of waves and ocean currents; photovoltaic installations that contribute to the operation of solar water heaters for homes and to the development of the electric vehicle sector.", "title": "Infrastructure" }, { "paragraph_id": 126, "text": "Electricity produced by hydropower, which represents 2.2% of total production, comes from dams built on the beds of certain rivers.", "title": "Infrastructure" }, { "paragraph_id": 127, "text": "The water distributed by Guadeloupe's drinking water network comes mainly from Basse Terre, 70% from river intakes and 20% from spring catchments. The remaining 10% comes from boreholes tapping the groundwater of Grande Terre and Marie-Galante.", "title": "Infrastructure" }, { "paragraph_id": 128, "text": "Access to water and sanitation is problematic due to the deteriorated state of the network, which causes many losses in the water supply system. For years, water shortages have been recurrent and have forced \"water shifts\", mainly in the municipalities of Grande-Terre, which are the most affected, with consequences for private individuals and agricultural activities.", "title": "Infrastructure" }, { "paragraph_id": 129, "text": "According to statistics from the Water Office (2020 data), 61% of drinking water production is wasted, i.e., almost 50 million cubic metres of water per year, due to pipes in poor condition. In addition, 70% of wastewater treatment plants do not meet standards.", "title": "Infrastructure" }, { "paragraph_id": 130, "text": "Although Guadeloupe is one of the safest islands in the Caribbean, it was the most violent overseas French department in 2016. The murder rate is slightly more than that of Paris, at 8.2 per 100,000. The high level of unemployment caused violence and crime to rise, especially in 2009 and 2010, the years following the Great Recession. Residents of Guadeloupe describe the island as a place with little everyday crime, and most violence is caused by the drug trade or domestic disputes. In 2021, additional police officers were deployed to the island in the face of rioting arising out of COVID-19 restrictions.", "title": "Police and crime" }, { "paragraph_id": 131, "text": "Normally, about 2,000 police officers are present on the island including some 760 active National Gendarmerie of the COMGEND (Gendarmerie Command of Guadeloupe) region plus around 260 reservists. The active Gendarmerie include three Mobile Gendarmerie Squadrons (EGM) and a Republican Guard Intervention Platoon (PIGR). The Maritime Gendarmerie deploys the patrol boat Violette in the territory, which is planned for replacement by a new PCG-NG patrol boat in about 2025–2026.", "title": "Police and crime" } ]
Guadeloupe is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the two inhabited Îles des Saintes—as well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat and north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe-à-Pitre, both located on Grande-Terre Island. It had a population of 384,239 in 2019. Like the other overseas departments, it is an integral part of France. As a constituent territory of the European Union and the Eurozone, the euro is its official currency and any European Union citizen is free to settle and work there indefinitely. However, as an overseas department, it is not part of the Schengen Area. The region formerly included Saint Barthélemy and Saint Martin, which were detached from Guadeloupe in 2007 following a 2003 referendum. Christopher Columbus visited Guadeloupe in 1493, during his second voyage, and gave the island its name. The official language is French; Antillean Creole is also spoken.
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https://en.wikipedia.org/wiki/Guadeloupe
12,345
Demographics of Guadeloupe
Guadeloupe has a population of 375,693 (2021). According to INSEE Guadeloupe had an estimated population of 403,977 on January 1, 2012. Life expectancy at birth is 77.0 years for males, and 83.5 for females (figures for 2011). French is the official language, taught in the school system. Antillean Creole French is spoken by a large part of the population, understood by nearly all, and taught in some schools. A 2007 document issued by the Organisation internationale de la Francophonie estimated the population to be 80.2% "francophone" and 14.9% "partially francophone". The following vital statistics include Saint Martin and Saint Barthélemy. Figures in 2020 state that 96% of the population is Christian (of these, approximately 86% are Roman Catholic, 8% Protestant and 6% other Christian); of the other 4%, most have no religion, although there is a small number of Hindus, Baha'is and Muslims.
[ { "paragraph_id": 0, "text": "Guadeloupe has a population of 375,693 (2021).", "title": "" }, { "paragraph_id": 1, "text": "According to INSEE Guadeloupe had an estimated population of 403,977 on January 1, 2012. Life expectancy at birth is 77.0 years for males, and 83.5 for females (figures for 2011).", "title": "Population" }, { "paragraph_id": 2, "text": "French is the official language, taught in the school system. Antillean Creole French is spoken by a large part of the population, understood by nearly all, and taught in some schools. A 2007 document issued by the Organisation internationale de la Francophonie estimated the population to be 80.2% \"francophone\" and 14.9% \"partially francophone\".", "title": "Languages" }, { "paragraph_id": 3, "text": "The following vital statistics include Saint Martin and Saint Barthélemy.", "title": "Vital statistics" }, { "paragraph_id": 4, "text": "Figures in 2020 state that 96% of the population is Christian (of these, approximately 86% are Roman Catholic, 8% Protestant and 6% other Christian); of the other 4%, most have no religion, although there is a small number of Hindus, Baha'is and Muslims.", "title": "Religion" } ]
Guadeloupe has a population of 375,693 (2021).
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https://en.wikipedia.org/wiki/Demographics_of_Guadeloupe
12,349
Telecommunications in Guadeloupe
As an overseas department and region of France, Guadeloupe has a developed telecommunication system. In 2019, there were 170,000 active high speed internet broadband subscriptions in Guadeloupe. 3 Internet Service Providers (ISPs) service the region: Orange Caraïbes, Mediaserv, and Outremer Telecom. In 2019, there were 623,000 active mobile phone lines in Guadeloupe, which represents a 145% equipment rate, higher than mainland France. Guadeloupe has its own domain name: .gp. There are 35 radio stations emitting in Guadeloupe. In 1997, there were 113,000 radio sets in the region. There are 10 TV stations emitting in Guadeloupe using digital terrestrial television, including 4 local stations. In 1997, there were 118,000 television sets in Guadeloupe.
[ { "paragraph_id": 0, "text": "As an overseas department and region of France, Guadeloupe has a developed telecommunication system.", "title": "" }, { "paragraph_id": 1, "text": "In 2019, there were 170,000 active high speed internet broadband subscriptions in Guadeloupe. 3 Internet Service Providers (ISPs) service the region: Orange Caraïbes, Mediaserv, and Outremer Telecom.", "title": "Internet" }, { "paragraph_id": 2, "text": "In 2019, there were 623,000 active mobile phone lines in Guadeloupe, which represents a 145% equipment rate, higher than mainland France.", "title": "Internet" }, { "paragraph_id": 3, "text": "Guadeloupe has its own domain name: .gp.", "title": "Domain name" }, { "paragraph_id": 4, "text": "There are 35 radio stations emitting in Guadeloupe. In 1997, there were 113,000 radio sets in the region.", "title": "Radio" }, { "paragraph_id": 5, "text": "There are 10 TV stations emitting in Guadeloupe using digital terrestrial television, including 4 local stations.", "title": "Television" }, { "paragraph_id": 6, "text": "In 1997, there were 118,000 television sets in Guadeloupe.", "title": "Television" }, { "paragraph_id": 7, "text": "", "title": "External links" } ]
As an overseas department and region of France, Guadeloupe has a developed telecommunication system.
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https://en.wikipedia.org/wiki/Telecommunications_in_Guadeloupe
12,350
Transport in Guadeloupe
As an archipelago, Guadeloupe depends on several systems of public transport. The two islands that make up Guadeloupe proper - Grande-Terre and Basse-Terre - have an extensive road network, while water and air transportation connects to the outer islands as well as international destinations. Guadeloupe uses right-hand traffic. Of the 2,082 km of roads in the region, the majority (1,742 km) are paved and are well-maintained. As Guadeloupe is a French-administered territory, road signs and directions are written in French. The two main islands of Grande-Terre and Basse-Terre are connected by the N1 and N11 highways. Winding roads are common, and in Basse-Terre, the mountain roads have especially sharp turns. Karu'lis operates several bus routes across Grande-Terre (including direct services to and around Basse-Terre), and a small route runs on the north-eastern island of La Désirade. There are no public railways in Guadeloupe. A public railway line between Pointe-à-Pitre and Le Moule (Grande-Terre) was proposed but was later scrapped. Some plantations operate private railways. There exists a tourist railway that is operational(as of 2014) from Beauport, Port Louis to de Poyen. The construction of a tramway was planned with two lines: one between the Abymes and the Memorial in Pointe-à-Pître; the other between Baie-Mahault and Gosier. This project was later abandoned due to High-service buses being preferred over the tramway. The container terminal Port de Jarry, in Pointe-à-Pitre, is Guadeloupe's primary port for cargo and cruise ship passengers. It handles more than 95% of Guadeloupe's trade. Basse-Terre city contains a smaller sea port which also handles passengers. Ferries connect Guadeloupe proper to the outer islands of La Désirade, Marie-Galante, and Îles des Saintes, as well as other Caribbean ports. Pointe-à-Pitre International Airport is the primary gateway for international travel into and out of Guadeloupe. It offers direct and chartered/seasonal flights to South America, the Caribbean, North America and Europe. It is a hub airport for Air Caraïbes.
[ { "paragraph_id": 0, "text": "As an archipelago, Guadeloupe depends on several systems of public transport. The two islands that make up Guadeloupe proper - Grande-Terre and Basse-Terre - have an extensive road network, while water and air transportation connects to the outer islands as well as international destinations.", "title": "" }, { "paragraph_id": 1, "text": "Guadeloupe uses right-hand traffic. Of the 2,082 km of roads in the region, the majority (1,742 km) are paved and are well-maintained. As Guadeloupe is a French-administered territory, road signs and directions are written in French. The two main islands of Grande-Terre and Basse-Terre are connected by the N1 and N11 highways. Winding roads are common, and in Basse-Terre, the mountain roads have especially sharp turns.", "title": "Road transport" }, { "paragraph_id": 2, "text": "Karu'lis operates several bus routes across Grande-Terre (including direct services to and around Basse-Terre), and a small route runs on the north-eastern island of La Désirade.", "title": "Road transport" }, { "paragraph_id": 3, "text": "There are no public railways in Guadeloupe. A public railway line between Pointe-à-Pitre and Le Moule (Grande-Terre) was proposed but was later scrapped. Some plantations operate private railways. There exists a tourist railway that is operational(as of 2014) from Beauport, Port Louis to de Poyen. The construction of a tramway was planned with two lines: one between the Abymes and the Memorial in Pointe-à-Pître; the other between Baie-Mahault and Gosier. This project was later abandoned due to High-service buses being preferred over the tramway.", "title": "Rail transport" }, { "paragraph_id": 4, "text": "The container terminal Port de Jarry, in Pointe-à-Pitre, is Guadeloupe's primary port for cargo and cruise ship passengers. It handles more than 95% of Guadeloupe's trade. Basse-Terre city contains a smaller sea port which also handles passengers.", "title": "Water transport" }, { "paragraph_id": 5, "text": "Ferries connect Guadeloupe proper to the outer islands of La Désirade, Marie-Galante, and Îles des Saintes, as well as other Caribbean ports.", "title": "Water transport" }, { "paragraph_id": 6, "text": "Pointe-à-Pitre International Airport is the primary gateway for international travel into and out of Guadeloupe. It offers direct and chartered/seasonal flights to South America, the Caribbean, North America and Europe. It is a hub airport for Air Caraïbes.", "title": "Air transport" } ]
As an archipelago, Guadeloupe depends on several systems of public transport. The two islands that make up Guadeloupe proper - Grande-Terre and Basse-Terre - have an extensive road network, while water and air transportation connects to the outer islands as well as international destinations.
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https://en.wikipedia.org/wiki/Transport_in_Guadeloupe
12,353
Glagolitic script
The Glagolitic script (/ˌɡlæɡəˈlɪtɪk/, ⰃⰎⰀⰃⰑⰎⰉⰜⰀ, glagolitsa) is the oldest known Slavic alphabet. It is generally agreed that it was created in the 9th century by Saint Cyril, a monk from Thessalonica. He and his brother Saint Methodius were sent by the Byzantine Emperor Michael III in 863 to Great Moravia to spread Christianity among the West Slavs in the area. The brothers decided to translate liturgical books into the contemporary Slavic language understandable to the general population (now known as Old Church Slavonic), and Cyril decided to invent a new script, Glagolitic, which he based on the local dialect of the Slavic tribes from around Thessalonica. After the deaths of Cyril and Methodius, the Glagolitic alphabet ceased to be used in Moravia for political or religious needs. In 886, the students of Cyril and Methodius were expelled and they moved to the First Bulgarian Empire instead. The Cyrillic alphabet, developed at the Preslav Literary School in the late 9th century, included some letters that were likely derived from the Glagolitic alphabet. Both Glagolitic and Cyrillic were used until the 13th–14th century in Bulgaria. Glagolitic also spread in Bohemia, and there are traces of it in Moravia and in Kievan Rus', where its use declined by the 12th century. Since then it was found largely in Croatia, preserved by the clergy mostly in Dalmatia, to write Church Slavonic, with traces also in Slavonia. It reappeared in the West Slavic area in the 14th century, but subsided by the next century. The script was attributed to St. Jerome in the Croatian lands up until the end of the 18th century, which was popular even if wrong. With the adoption of Latin and Cyrillic alphabets in all Slavic-speaking countries, by the early modern times the Glagolitic script remained in limited liturgical use, and went out of use in the 19th century. Since then it has been a topic of academic interest, after a number of archeological discoveries. The word glagolitic comes from Neo-Latin glagoliticus and Croatian glagoljica, from Old Church Slavonic ⰳⰾⰰⰳⱁⰾⱏ (glagolŭ), meaning "utterance" or "word". The name glagolitsa is speculated to have developed in Croatia, around the 14th century, and was derived from the word glagoljati, literally "verb (glagol) using (jati)", meaning to say Mass in Old Church Slavonic liturgy. In the languages now spoken in the places where Glagolitic script was once used, the script is known as глаголица (romanized as glagolitsa and glagolica, respectively) in Bulgarian, Macedonian and Russian; glagoljica in Croatian and Serbian; hlaholice in Czech; głagolica in Polish; hlaholika in Slovak; and glagolica in Slovene. , Croatia The creation of the characters is popularly attributed to Saints Cyril and Methodius, who may have created them to facilitate the introduction of Christianity. It is believed that the original letters were fitted to Slavic dialects in geographical Macedonia specifically (the Byzantine theme of Thessalonica). The words of that language could not be easily written by using either the Greek or Latin alphabets. The number of letters in the original Glagolitic alphabet is not known, but it may have been close to its presumed Greek model. The 41 letters known today include letters for non-Greek sounds, which may have been added by Saint Cyril, as well as ligatures added in the 12th century under the influence of Cyrillic, as Glagolitic lost its dominance. In later centuries, the number of letters dropped dramatically, to fewer than 30 in modern Croatian and Czech recensions of the Church Slavic language. Twenty-four of the 41 original Glagolitic letters (see table below) probably derive from graphemes of the medieval cursive Greek small alphabet but have been given an ornamental design. The source of the other consonantal letters is unknown. If they were added by Cyril, it is likely that they were taken from an alphabet used for Christian scripture. It is frequently proposed that the letters sha Ⱎ, tsi Ⱌ, and cherv Ⱍ were taken from the letters shin ש and tsadi צ of the Hebrew alphabet, and that Ⰶ zhivete derives from Coptic janja Ϫ. However, Cubberley suggests that if a single prototype were presumed, the most likely source would be Armenian. Other proposals include the Samaritan alphabet, which Cyril learned during his journey to the Khazars in Cherson. For writing numbers, the Glagolitic numerals use letters with a numerical value assigned to each based on their native alphabetic order. This differs from Cyrillic numerals, which inherited their numeric value from the corresponding Greek letter (see Greek numerals). The two brothers from Thessaloniki, who were later canonized as Saints Cyril and Methodius, were sent to Great Moravia in 862 by the Byzantine emperor at the request of Prince Rastislav, who wanted to weaken the dependence of his country on East Frankish priests. The Glagolitic alphabet, however it originated, was used between 863 and 885 for government and religious documents and books and at the Great Moravian Academy (Veľkomoravské učilište) founded by the missionaries, where their followers were educated. The Kiev Missal, found in the 19th century in Jerusalem, was dated to the 10th century. In 885, Pope Stephen V issued a papal bull to restrict spreading and reading Christian services in languages other than Latin or Greek. Around the same time, Svatopluk I, following the interests of the Frankish Empire, persecuted the students of Cyril and Methodius and expelled them from Great Moravia. In 886, an East Frankish bishop of Nitra named Wiching banned the script and jailed 200 followers of Methodius, mostly students of the original academy. They were then dispersed or, according to some sources, sold as slaves by the Franks. However, many of them, including Saints Naum, Clement, Angelar, Sava and Gorazd, reached the First Bulgarian Empire and were commissioned by Boris I of Bulgaria to teach and instruct the future clergy of the state in the Slavic language. After the adoption of Christianity in Bulgaria in 865, religious ceremonies and Divine Liturgy were conducted in Greek by clergy sent from the Byzantine Empire, using the Byzantine rite. Fearing growing Byzantine influence and weakening of the state, Boris viewed the introduction of the Slavic alphabet and language into church use as a way to preserve the independence of the Bulgarian Empire from Byzantine Constantinople. As a result of Boris' measures, two academies, one in Ohrid and one in Preslav, were founded. From there, the students travelled to other places and spread the use of their alphabet. Students of the two apostles who were expelled from Great Moravia in 886, notably Clement of Ohrid and Saint Naum, brought the Glagolitic alphabet to the First Bulgarian Empire on Balkans and were received and accepted officially by Boris I of Bulgaria. This led to the establishment of the two literary schools: the Preslav Literary School and the Ohrid Literary School. Some went to Croatia (Dalmatia), where the squared variant arose and where Glagolitic remained in use for a long time. In 1248, Pope Innocent IV granted the Croatians of southern Dalmatia the unique privilege of using their own language and this script in the Roman Rite liturgy. Formally granted to bishop Philip of Senj, permission to use the Glagolitic liturgy (the Roman Rite conducted in the Slavic language instead of Latin, not the Byzantine rite), actually extended to all Croatian lands, mostly along the Adriatic coast. The Holy See had several Glagolitic missals published in Rome. Authorization for the use of this language was extended to some other Slavic regions between 1886 and 1935. In missals, the Glagolitic script was eventually replaced with the Latin alphabet, but the use of the Slavic language in the Mass continued, until replaced by modern vernacular languages. At the end of the 9th century, one of these students of Methodius – Saint Naum, one of the founders of the Pliska Literary School (commonly known as the Preslav Literary School, where the Bulgarian capital, along with the school, was transferred to in 893) – is often credited, at least by supporters of glagolitic precedence, for the "creation" or wider adoption of the Cyrillic script, which almost entirely replaced Glagolitic during the Middle Ages. The Cyrillic alphabet is derived from the Greek alphabet used at that time, with some additional letters for sounds peculiar to Slavic languages (like ⟨ш⟩, ⟨ц⟩, ⟨ч⟩, ⟨ъ⟩, ⟨ь⟩, ⟨ѣ⟩), likely derived from the Glagolitic alphabet. The decision by a great assembly of notables summoned by Boris in the year 893 in favor of Cyrillic created an alphabetical difference between the two literary centres of the Bulgarian state in Pliska and Ohrid. In the western part the Glagolitic alphabet remained dominant at first. However, subsequently in the next two centuries, mostly after the fall of the First Bulgarian Empire to the Byzantines, Glagolitic gradually ceased to be used there at all. Nevertheless, particular passages or words written with the Glagolitic alphabet appeared in Bulgarian Cyrillic manuscripts till the end of the 14th century. Some students of the Ohrid academy went to Bohemia where the alphabet was used in the 10th and 11th centuries, along with other scripts. It is not clear whether the Glagolitic alphabet was used in the Duchy of Kopnik before the Wendish Crusade, but it was certainly used in Kievan Rus'. Another use of Glagolitic is presumed in now southern Poland (Duchy of Vistula/White Croats state) and the Transcarpathia region. In Croatia, from the 12th century, Glagolitic inscriptions appeared mostly in littoral areas: Istria, Primorje, Kvarner, and Kvarner islands, notably Krk, Cres, and Lošinj; in Dalmatia, on the islands of Zadar, but there were also findings in inner Lika and Krbava, reaching to Kupa river, and even as far as Međimurje and Slovenia. Hrvoje's Missal from 1404 was illuminated in Split, and it is considered one of the most beautiful Croatian Glagolitic books. The 1483 Missale Romanum Glagolitice was the first printed Croatian Glagolitic book. It was believed that Glagolitsa in Croatia was present only in those areas. But, in 1992, the discovery of Glagolitic inscriptions in churches along the Orljava river in Slavonia totally changed the picture (churches in Brodski Drenovac, Lovčić, and some others), showing that use of the Glagolitic alphabet was spread from Slavonia also. Sporadic instances aside, Glagolitic survived beyond the 12th century as a primary script in Croatian lands alone, although from there a brief attempt at reintroduction was made in the West Slavic area in the 14th century through the Emmaus Benedictine Monastery in Prague, where it survived well into the 15th century, the last manuscript with Glagolitic script dating to 1450–1452. Its use for special applications continued in some Cyrillic areas, for example in the Bologna Psalter (1230-1241), the Sinodalna 895 Menaion (1260), the RPK 312 Gospel (13th), the Karakallou Epistolary (13th), the NBKM 933 Triodion (13th), the Skopje 1511 Octoechos (13th), the BRAN 4.9.39 Miscellany (13th), the Hilandar Chrysorrhoas (13th/14th), the Mazurin 1698 Pandects (13th/14th), the Sofia Psalter (1337), the SANU 55 Epistolary (1366–1367), the RNB F.п.I.2 Psalter (14th), the Čajniče Gospel (late 14th), the Radosav Miscellany (1444–1461), the Prague NM IX.F.38 Psalter (18th) and in the initials of many manuscripts of the Prophets with Commentary dating to the late 15th and early 16th centuries from Muscovy and Russia. Most later use in the Cyrillic world was for cryptographic purposes, such as in the Krushedol Miscellany (15th), the RNB F.п.I.48 Prologue (1456), the Piskarev 59 Isaac (1472), the Shchukin 511 Miscellany (1511) and the Hludov Gospel (17th/18th). The early development of the Glagolitic minuscule script alongside the increasingly square majuscule is poorly documented, but a mutual relationship evolved between the two varieties; the majuscule being used primarily for inscriptions and higher liturgical uses, and the minuscule being used in both religious and secular documents. Ignoring the problematic early Slavonian inscriptions, the use of the Glagolitic script at its peak before the Croatian-Ottoman wars corresponded roughly to the area that spoke the Chakavian dialect at the time, in addition to some adjacent Kajkavian regions within the Zagreb bishopric. As a result, vernacular impact on the liturgical language and script largely stems from Chakavian sub-dialects, although South Chakavian speakers mostly used Cyrillic, with Glagolitic only in certain parishes as a high liturgical script until a Glagolitic seminary was opened in Split in the 18th century, aside from a period of time in the parish of Kučiće-Vinišće. The Ottoman Empire's repeated incursions into Croatia in the 15th and 16th centuries posed the first major existential threat to the script's survival. The Counter-Reformation, alongside other factors, led to the suppression of Glagolitic in Istria in the 16th–17th centuries as well as in the Zagreb archdiocese. The Latinisation of the coastal cities and islands took much longer, where the script continued to be used by the notaries of Krk into the first decade of the 19th century, with education by rural chapters on that island ensuring the survival of the script until well after their abolition by the Napoleon administration in the second decade of the 19th century. Novitiates continued to be educated primarily in the Glagolitic script as late as the third decade of the 19th century. But without centres of education, Latin script and Italian rapidly took over, so that very little was written in the script after the third quarter of the 19th century except for ceremonial purposes, and soon very few could read the cursive script apart from a few scholars. The exact nature of relationship between the Glagolitic alphabet and the Early Cyrillic alphabet, their order of development, and influence on each other has been a matter of great study, controversy, and dispute in Slavic studies since the 19th century. The tradition that the alphabet was designed by Saint Cyril and Saint Methodius has not been universally accepted. A once common belief was that the Glagolitic was created or used in the 4th century by St. Jerome (Latin: Eusebius Sophronius Hieronymus), hence the alphabet was sometimes named "Hieronymian". It is also acrophonically called azbuka from the names of its first two letters, on the same model as "alpha" + "beta" (the same name can also refer to Cyrillic and in some modern languages it simply means "alphabet" in general). The Slavs of Great Moravia (present-day Slovakia and Moravia), Hungary, Slovenia and Slavonia were called Slověne at that time, which gives rise to the name "Slovenish" for the alphabet. Some other, rarer, names for this alphabet are Bukvitsa (from common Slavic word "bukva" meaning "letter", and a suffix "-itsa") and "Illyrian" (presumably similar to using the same anachronistic name for the Illyrian (Slavic) language). In the Middle Ages, Glagolitsa was also known as "St. Jerome's script" due to a popular mediaeval legend (created by Croatian scribes in the 13th century) ascribing its invention to St. Jerome (342–429). The legend was partly based on the saint's place of birth on the border of Dalmatia and Pannonia. He was viewed as a "compatriot" and anachronistically as belonging to the same ethnic group; this helped the spread of the cult of the saint in Dalmatia and was later used to support the idea of the presence of Slavic communities in the Eastern Adriatic Coast from ancient times, but the legend was probably firstly introduced for other reasons, like giving a more solid religious justification for the use of this script and Slavic liturgy. The theory nevertheless gained much popularity and spread to other countries before being resolutely disproven. Until the end of the 18th century, a strange but widespread opinion dominated that the Glagolitic writing system, which was in use in Dalmatia and Istria along with neighboring islands, including the translation of the Holy Scripture, owe their existence to the famous church father St. Jerome. Knowing him as the author of the Latin Vulgate, considering him – by his own words, born on the border between Dalmatia and Pannonia (remembering that the Dalmatian borders extended well into Istria at that time) – presumed to be an Illyrian, the self-styled Slavic intellectuals in Dalmatia very early began to ascribe to him the invention of glagolitsa, possibly with the intention of more successfully defending both Slavic writing and the Slavic holy service against prosecutions and prohibitions from Rome's hierarchy, thus using the opinion of the famous Latin Father of the Church to protect their church rituals which were inherited not from the Greeks Cyril and Methodius but unknown. We do not know who was the first to put in motion this unscientifically-based tradition about Jerome's authorship of the Glagolitic script and translation of the Holy Scripture, but in 1248 this version came to the knowledge of Pope Innocent IV. <...> The belief in Jerome as an inventor of the Glagolitic lasted many centuries, not only in his homeland, i.e. in Dalmatia and Croatia, not only in Rome, due to Slavs living there... but also in the West. In the 14th century, Croatian monks brought the legend to the Czechs, and even the Emperor Charles IV believed them. The epoch of traditional attribution of the script to Jerome ended probably in 1812. In modern times, only certain marginal authors share this view, usually "re-discovering" one of the already-known mediaeval sources. The phonetic values of many of the letters are thought to have been displaced under Cyrillic influence or to have become confused through the early spread to different dialects, so the original values are not always clear. For instance, the letter yu Ⱓ is thought to have perhaps originally had the sound /u/ but was displaced by the adoption of the ligature Ⱆ under the influence of later Cyrillic oѵ, mirroring the Greek ου. Other letters were late creations after a Cyrillic model. It should also be noted that Ⱑ corresponds to two different Cyrillic letters (Ѣ and Я), present even in older manuscripts, and not to different later variants of the same Cyrillic letter in different times or places. The following table lists each letter in its modern order, showing its Unicode representation, images of the letter in both the round and angular/squared variant forms, the corresponding modern Cyrillic letter, the approximate sound transcribed with the IPA, the name, and suggestions for its origin. The Old Church Slavonic names follow the scientific transliteration, while the mostly similar Church Slavonic ones follow an approach more familiar to a generic English speaking reader. Several letters have no modern counterpart. The column for the angular variant, sometimes referred to as Croatian Glagolitic, is not complete as some of the letters were not used following the Croatian recension of Old Church Slavonic. In older texts, uk (Ⱆ) and three out of four yuses (Ⱗ, Ⱘ, Ⱙ) also can be written as digraphs, in two separate parts. The order of izhe (Ⰹ, Ⰺ) and i (Ⰻ) varies from source to source, as does the order of the various forms of yus (Ⱔ, Ⱗ, Ⱘ, Ⱙ). Correspondence between Glagolitic izhe (Ⰹ, Ⰺ) and i (Ⰻ) with Cyrillic И and І is unknown. The Proto-Slavic language did not have the phoneme /f/, and the letters fert (Ⱇ) and fita (Ⱚ) were used for transcribing words of Greek origin, and so was izhitsa (Ⱛ) for the Greek upsilon. The Glagolitic alphabet was added to the Unicode Standard in March 2005 with the release of version 4.1. The Unicode block for Glagolitic is U+2C00–U+2C5F. The Glagolitic combining letters for Glagolitic Supplement block (U+1E000–U+1E02F) was added to the Unicode Standard in June, 2016 with the release of version 9.0: A hypothetical pre-Glagolitic writing system is typically referred to as cherty i rezy (strokes and incisions) – but no material evidence of the existence of any pre-Glagolitic Slavic writing system has been found, except for a few brief and vague references in old chronicles and "lives of the saints". All artifacts presented as evidence of pre-Glagolitic Slavic inscriptions have later been identified as texts in known scripts and in known non-Slavic languages, or as fakes. The well-known Chernorizets Hrabar's strokes and incisions are usually considered to be a reference to a kind of property mark or alternatively fortune-telling signs. Some "Ruthenian letters" found in one version of St. Cyril's life are explainable as misspelled "Syrian letters" (in Slavic, the roots are very similar: rus- vs. sur- or syr-), etc. Glagolitic script is the writing system used in the world of The Witcher books and video game series. It is also featured, in various uses, in several of the point and click adventure games made by Cateia Games, a Croatian game studio. In the 2023 PS5 game Forspoken, Athian script, the written language of the Athian continent and cultures, seems to be based upon Glagolitic script. It is also featured on 1 euro cent, 2 euro cent and 5 euro cent coins minted in Croatia.
[ { "paragraph_id": 0, "text": "The Glagolitic script (/ˌɡlæɡəˈlɪtɪk/, ⰃⰎⰀⰃⰑⰎⰉⰜⰀ, glagolitsa) is the oldest known Slavic alphabet. It is generally agreed that it was created in the 9th century by Saint Cyril, a monk from Thessalonica. He and his brother Saint Methodius were sent by the Byzantine Emperor Michael III in 863 to Great Moravia to spread Christianity among the West Slavs in the area. The brothers decided to translate liturgical books into the contemporary Slavic language understandable to the general population (now known as Old Church Slavonic), and Cyril decided to invent a new script, Glagolitic, which he based on the local dialect of the Slavic tribes from around Thessalonica. After the deaths of Cyril and Methodius, the Glagolitic alphabet ceased to be used in Moravia for political or religious needs.", "title": "" }, { "paragraph_id": 1, "text": "In 886, the students of Cyril and Methodius were expelled and they moved to the First Bulgarian Empire instead. The Cyrillic alphabet, developed at the Preslav Literary School in the late 9th century, included some letters that were likely derived from the Glagolitic alphabet. Both Glagolitic and Cyrillic were used until the 13th–14th century in Bulgaria.", "title": "" }, { "paragraph_id": 2, "text": "Glagolitic also spread in Bohemia, and there are traces of it in Moravia and in Kievan Rus', where its use declined by the 12th century. Since then it was found largely in Croatia, preserved by the clergy mostly in Dalmatia, to write Church Slavonic, with traces also in Slavonia. It reappeared in the West Slavic area in the 14th century, but subsided by the next century. The script was attributed to St. Jerome in the Croatian lands up until the end of the 18th century, which was popular even if wrong.", "title": "" }, { "paragraph_id": 3, "text": "With the adoption of Latin and Cyrillic alphabets in all Slavic-speaking countries, by the early modern times the Glagolitic script remained in limited liturgical use, and went out of use in the 19th century. Since then it has been a topic of academic interest, after a number of archeological discoveries.", "title": "" }, { "paragraph_id": 4, "text": "The word glagolitic comes from Neo-Latin glagoliticus and Croatian glagoljica, from Old Church Slavonic ⰳⰾⰰⰳⱁⰾⱏ (glagolŭ), meaning \"utterance\" or \"word\".", "title": "Name and etymology" }, { "paragraph_id": 5, "text": "The name glagolitsa is speculated to have developed in Croatia, around the 14th century, and was derived from the word glagoljati, literally \"verb (glagol) using (jati)\", meaning to say Mass in Old Church Slavonic liturgy.", "title": "Name and etymology" }, { "paragraph_id": 6, "text": "In the languages now spoken in the places where Glagolitic script was once used, the script is known as глаголица (romanized as glagolitsa and glagolica, respectively) in Bulgarian, Macedonian and Russian; glagoljica in Croatian and Serbian; hlaholice in Czech; głagolica in Polish; hlaholika in Slovak; and glagolica in Slovene.", "title": "Name and etymology" }, { "paragraph_id": 7, "text": ", Croatia", "title": "History" }, { "paragraph_id": 8, "text": "The creation of the characters is popularly attributed to Saints Cyril and Methodius, who may have created them to facilitate the introduction of Christianity. It is believed that the original letters were fitted to Slavic dialects in geographical Macedonia specifically (the Byzantine theme of Thessalonica). The words of that language could not be easily written by using either the Greek or Latin alphabets.", "title": "History" }, { "paragraph_id": 9, "text": "The number of letters in the original Glagolitic alphabet is not known, but it may have been close to its presumed Greek model. The 41 letters known today include letters for non-Greek sounds, which may have been added by Saint Cyril, as well as ligatures added in the 12th century under the influence of Cyrillic, as Glagolitic lost its dominance. In later centuries, the number of letters dropped dramatically, to fewer than 30 in modern Croatian and Czech recensions of the Church Slavic language. Twenty-four of the 41 original Glagolitic letters (see table below) probably derive from graphemes of the medieval cursive Greek small alphabet but have been given an ornamental design.", "title": "History" }, { "paragraph_id": 10, "text": "The source of the other consonantal letters is unknown. If they were added by Cyril, it is likely that they were taken from an alphabet used for Christian scripture. It is frequently proposed that the letters sha Ⱎ, tsi Ⱌ, and cherv Ⱍ were taken from the letters shin ש and tsadi צ of the Hebrew alphabet, and that Ⰶ zhivete derives from Coptic janja Ϫ. However, Cubberley suggests that if a single prototype were presumed, the most likely source would be Armenian. Other proposals include the Samaritan alphabet, which Cyril learned during his journey to the Khazars in Cherson.", "title": "History" }, { "paragraph_id": 11, "text": "For writing numbers, the Glagolitic numerals use letters with a numerical value assigned to each based on their native alphabetic order. This differs from Cyrillic numerals, which inherited their numeric value from the corresponding Greek letter (see Greek numerals).", "title": "History" }, { "paragraph_id": 12, "text": "The two brothers from Thessaloniki, who were later canonized as Saints Cyril and Methodius, were sent to Great Moravia in 862 by the Byzantine emperor at the request of Prince Rastislav, who wanted to weaken the dependence of his country on East Frankish priests. The Glagolitic alphabet, however it originated, was used between 863 and 885 for government and religious documents and books and at the Great Moravian Academy (Veľkomoravské učilište) founded by the missionaries, where their followers were educated. The Kiev Missal, found in the 19th century in Jerusalem, was dated to the 10th century.", "title": "History" }, { "paragraph_id": 13, "text": "In 885, Pope Stephen V issued a papal bull to restrict spreading and reading Christian services in languages other than Latin or Greek. Around the same time, Svatopluk I, following the interests of the Frankish Empire, persecuted the students of Cyril and Methodius and expelled them from Great Moravia.", "title": "History" }, { "paragraph_id": 14, "text": "In 886, an East Frankish bishop of Nitra named Wiching banned the script and jailed 200 followers of Methodius, mostly students of the original academy. They were then dispersed or, according to some sources, sold as slaves by the Franks. However, many of them, including Saints Naum, Clement, Angelar, Sava and Gorazd, reached the First Bulgarian Empire and were commissioned by Boris I of Bulgaria to teach and instruct the future clergy of the state in the Slavic language. After the adoption of Christianity in Bulgaria in 865, religious ceremonies and Divine Liturgy were conducted in Greek by clergy sent from the Byzantine Empire, using the Byzantine rite. Fearing growing Byzantine influence and weakening of the state, Boris viewed the introduction of the Slavic alphabet and language into church use as a way to preserve the independence of the Bulgarian Empire from Byzantine Constantinople. As a result of Boris' measures, two academies, one in Ohrid and one in Preslav, were founded.", "title": "History" }, { "paragraph_id": 15, "text": "From there, the students travelled to other places and spread the use of their alphabet. Students of the two apostles who were expelled from Great Moravia in 886, notably Clement of Ohrid and Saint Naum, brought the Glagolitic alphabet to the First Bulgarian Empire on Balkans and were received and accepted officially by Boris I of Bulgaria. This led to the establishment of the two literary schools: the Preslav Literary School and the Ohrid Literary School. Some went to Croatia (Dalmatia), where the squared variant arose and where Glagolitic remained in use for a long time. In 1248, Pope Innocent IV granted the Croatians of southern Dalmatia the unique privilege of using their own language and this script in the Roman Rite liturgy. Formally granted to bishop Philip of Senj, permission to use the Glagolitic liturgy (the Roman Rite conducted in the Slavic language instead of Latin, not the Byzantine rite), actually extended to all Croatian lands, mostly along the Adriatic coast. The Holy See had several Glagolitic missals published in Rome. Authorization for the use of this language was extended to some other Slavic regions between 1886 and 1935. In missals, the Glagolitic script was eventually replaced with the Latin alphabet, but the use of the Slavic language in the Mass continued, until replaced by modern vernacular languages.", "title": "History" }, { "paragraph_id": 16, "text": "At the end of the 9th century, one of these students of Methodius – Saint Naum, one of the founders of the Pliska Literary School (commonly known as the Preslav Literary School, where the Bulgarian capital, along with the school, was transferred to in 893) – is often credited, at least by supporters of glagolitic precedence, for the \"creation\" or wider adoption of the Cyrillic script, which almost entirely replaced Glagolitic during the Middle Ages. The Cyrillic alphabet is derived from the Greek alphabet used at that time, with some additional letters for sounds peculiar to Slavic languages (like ⟨ш⟩, ⟨ц⟩, ⟨ч⟩, ⟨ъ⟩, ⟨ь⟩, ⟨ѣ⟩), likely derived from the Glagolitic alphabet. The decision by a great assembly of notables summoned by Boris in the year 893 in favor of Cyrillic created an alphabetical difference between the two literary centres of the Bulgarian state in Pliska and Ohrid. In the western part the Glagolitic alphabet remained dominant at first. However, subsequently in the next two centuries, mostly after the fall of the First Bulgarian Empire to the Byzantines, Glagolitic gradually ceased to be used there at all. Nevertheless, particular passages or words written with the Glagolitic alphabet appeared in Bulgarian Cyrillic manuscripts till the end of the 14th century. Some students of the Ohrid academy went to Bohemia where the alphabet was used in the 10th and 11th centuries, along with other scripts. It is not clear whether the Glagolitic alphabet was used in the Duchy of Kopnik before the Wendish Crusade, but it was certainly used in Kievan Rus'. Another use of Glagolitic is presumed in now southern Poland (Duchy of Vistula/White Croats state) and the Transcarpathia region.", "title": "History" }, { "paragraph_id": 17, "text": "In Croatia, from the 12th century, Glagolitic inscriptions appeared mostly in littoral areas: Istria, Primorje, Kvarner, and Kvarner islands, notably Krk, Cres, and Lošinj; in Dalmatia, on the islands of Zadar, but there were also findings in inner Lika and Krbava, reaching to Kupa river, and even as far as Međimurje and Slovenia. Hrvoje's Missal from 1404 was illuminated in Split, and it is considered one of the most beautiful Croatian Glagolitic books. The 1483 Missale Romanum Glagolitice was the first printed Croatian Glagolitic book.", "title": "History" }, { "paragraph_id": 18, "text": "It was believed that Glagolitsa in Croatia was present only in those areas. But, in 1992, the discovery of Glagolitic inscriptions in churches along the Orljava river in Slavonia totally changed the picture (churches in Brodski Drenovac, Lovčić, and some others), showing that use of the Glagolitic alphabet was spread from Slavonia also.", "title": "History" }, { "paragraph_id": 19, "text": "Sporadic instances aside, Glagolitic survived beyond the 12th century as a primary script in Croatian lands alone, although from there a brief attempt at reintroduction was made in the West Slavic area in the 14th century through the Emmaus Benedictine Monastery in Prague, where it survived well into the 15th century, the last manuscript with Glagolitic script dating to 1450–1452. Its use for special applications continued in some Cyrillic areas, for example in the Bologna Psalter (1230-1241), the Sinodalna 895 Menaion (1260), the RPK 312 Gospel (13th), the Karakallou Epistolary (13th), the NBKM 933 Triodion (13th), the Skopje 1511 Octoechos (13th), the BRAN 4.9.39 Miscellany (13th), the Hilandar Chrysorrhoas (13th/14th), the Mazurin 1698 Pandects (13th/14th), the Sofia Psalter (1337), the SANU 55 Epistolary (1366–1367), the RNB F.п.I.2 Psalter (14th), the Čajniče Gospel (late 14th), the Radosav Miscellany (1444–1461), the Prague NM IX.F.38 Psalter (18th) and in the initials of many manuscripts of the Prophets with Commentary dating to the late 15th and early 16th centuries from Muscovy and Russia. Most later use in the Cyrillic world was for cryptographic purposes, such as in the Krushedol Miscellany (15th), the RNB F.п.I.48 Prologue (1456), the Piskarev 59 Isaac (1472), the Shchukin 511 Miscellany (1511) and the Hludov Gospel (17th/18th).", "title": "History" }, { "paragraph_id": 20, "text": "The early development of the Glagolitic minuscule script alongside the increasingly square majuscule is poorly documented, but a mutual relationship evolved between the two varieties; the majuscule being used primarily for inscriptions and higher liturgical uses, and the minuscule being used in both religious and secular documents. Ignoring the problematic early Slavonian inscriptions, the use of the Glagolitic script at its peak before the Croatian-Ottoman wars corresponded roughly to the area that spoke the Chakavian dialect at the time, in addition to some adjacent Kajkavian regions within the Zagreb bishopric. As a result, vernacular impact on the liturgical language and script largely stems from Chakavian sub-dialects, although South Chakavian speakers mostly used Cyrillic, with Glagolitic only in certain parishes as a high liturgical script until a Glagolitic seminary was opened in Split in the 18th century, aside from a period of time in the parish of Kučiće-Vinišće.", "title": "History" }, { "paragraph_id": 21, "text": "The Ottoman Empire's repeated incursions into Croatia in the 15th and 16th centuries posed the first major existential threat to the script's survival. The Counter-Reformation, alongside other factors, led to the suppression of Glagolitic in Istria in the 16th–17th centuries as well as in the Zagreb archdiocese. The Latinisation of the coastal cities and islands took much longer, where the script continued to be used by the notaries of Krk into the first decade of the 19th century, with education by rural chapters on that island ensuring the survival of the script until well after their abolition by the Napoleon administration in the second decade of the 19th century. Novitiates continued to be educated primarily in the Glagolitic script as late as the third decade of the 19th century. But without centres of education, Latin script and Italian rapidly took over, so that very little was written in the script after the third quarter of the 19th century except for ceremonial purposes, and soon very few could read the cursive script apart from a few scholars.", "title": "History" }, { "paragraph_id": 22, "text": "The exact nature of relationship between the Glagolitic alphabet and the Early Cyrillic alphabet, their order of development, and influence on each other has been a matter of great study, controversy, and dispute in Slavic studies since the 19th century.", "title": "History" }, { "paragraph_id": 23, "text": "The tradition that the alphabet was designed by Saint Cyril and Saint Methodius has not been universally accepted. A once common belief was that the Glagolitic was created or used in the 4th century by St. Jerome (Latin: Eusebius Sophronius Hieronymus), hence the alphabet was sometimes named \"Hieronymian\".", "title": "Versions of authorship and name" }, { "paragraph_id": 24, "text": "It is also acrophonically called azbuka from the names of its first two letters, on the same model as \"alpha\" + \"beta\" (the same name can also refer to Cyrillic and in some modern languages it simply means \"alphabet\" in general). The Slavs of Great Moravia (present-day Slovakia and Moravia), Hungary, Slovenia and Slavonia were called Slověne at that time, which gives rise to the name \"Slovenish\" for the alphabet. Some other, rarer, names for this alphabet are Bukvitsa (from common Slavic word \"bukva\" meaning \"letter\", and a suffix \"-itsa\") and \"Illyrian\" (presumably similar to using the same anachronistic name for the Illyrian (Slavic) language).", "title": "Versions of authorship and name" }, { "paragraph_id": 25, "text": "In the Middle Ages, Glagolitsa was also known as \"St. Jerome's script\" due to a popular mediaeval legend (created by Croatian scribes in the 13th century) ascribing its invention to St. Jerome (342–429). The legend was partly based on the saint's place of birth on the border of Dalmatia and Pannonia. He was viewed as a \"compatriot\" and anachronistically as belonging to the same ethnic group; this helped the spread of the cult of the saint in Dalmatia and was later used to support the idea of the presence of Slavic communities in the Eastern Adriatic Coast from ancient times, but the legend was probably firstly introduced for other reasons, like giving a more solid religious justification for the use of this script and Slavic liturgy. The theory nevertheless gained much popularity and spread to other countries before being resolutely disproven.", "title": "Versions of authorship and name" }, { "paragraph_id": 26, "text": "Until the end of the 18th century, a strange but widespread opinion dominated that the Glagolitic writing system, which was in use in Dalmatia and Istria along with neighboring islands, including the translation of the Holy Scripture, owe their existence to the famous church father St. Jerome. Knowing him as the author of the Latin Vulgate, considering him – by his own words, born on the border between Dalmatia and Pannonia (remembering that the Dalmatian borders extended well into Istria at that time) – presumed to be an Illyrian, the self-styled Slavic intellectuals in Dalmatia very early began to ascribe to him the invention of glagolitsa, possibly with the intention of more successfully defending both Slavic writing and the Slavic holy service against prosecutions and prohibitions from Rome's hierarchy, thus using the opinion of the famous Latin Father of the Church to protect their church rituals which were inherited not from the Greeks Cyril and Methodius but unknown. We do not know who was the first to put in motion this unscientifically-based tradition about Jerome's authorship of the Glagolitic script and translation of the Holy Scripture, but in 1248 this version came to the knowledge of Pope Innocent IV. <...> The belief in Jerome as an inventor of the Glagolitic lasted many centuries, not only in his homeland, i.e. in Dalmatia and Croatia, not only in Rome, due to Slavs living there... but also in the West. In the 14th century, Croatian monks brought the legend to the Czechs, and even the Emperor Charles IV believed them.", "title": "Versions of authorship and name" }, { "paragraph_id": 27, "text": "The epoch of traditional attribution of the script to Jerome ended probably in 1812. In modern times, only certain marginal authors share this view, usually \"re-discovering\" one of the already-known mediaeval sources.", "title": "Versions of authorship and name" }, { "paragraph_id": 28, "text": "The phonetic values of many of the letters are thought to have been displaced under Cyrillic influence or to have become confused through the early spread to different dialects, so the original values are not always clear. For instance, the letter yu Ⱓ is thought to have perhaps originally had the sound /u/ but was displaced by the adoption of the ligature Ⱆ under the influence of later Cyrillic oѵ, mirroring the Greek ου. Other letters were late creations after a Cyrillic model. It should also be noted that Ⱑ corresponds to two different Cyrillic letters (Ѣ and Я), present even in older manuscripts, and not to different later variants of the same Cyrillic letter in different times or places.", "title": "Characteristics" }, { "paragraph_id": 29, "text": "The following table lists each letter in its modern order, showing its Unicode representation, images of the letter in both the round and angular/squared variant forms, the corresponding modern Cyrillic letter, the approximate sound transcribed with the IPA, the name, and suggestions for its origin. The Old Church Slavonic names follow the scientific transliteration, while the mostly similar Church Slavonic ones follow an approach more familiar to a generic English speaking reader. Several letters have no modern counterpart. The column for the angular variant, sometimes referred to as Croatian Glagolitic, is not complete as some of the letters were not used following the Croatian recension of Old Church Slavonic.", "title": "Characteristics" }, { "paragraph_id": 30, "text": "In older texts, uk (Ⱆ) and three out of four yuses (Ⱗ, Ⱘ, Ⱙ) also can be written as digraphs, in two separate parts.", "title": "Characteristics" }, { "paragraph_id": 31, "text": "The order of izhe (Ⰹ, Ⰺ) and i (Ⰻ) varies from source to source, as does the order of the various forms of yus (Ⱔ, Ⱗ, Ⱘ, Ⱙ). Correspondence between Glagolitic izhe (Ⰹ, Ⰺ) and i (Ⰻ) with Cyrillic И and І is unknown.", "title": "Characteristics" }, { "paragraph_id": 32, "text": "The Proto-Slavic language did not have the phoneme /f/, and the letters fert (Ⱇ) and fita (Ⱚ) were used for transcribing words of Greek origin, and so was izhitsa (Ⱛ) for the Greek upsilon.", "title": "Characteristics" }, { "paragraph_id": 33, "text": "The Glagolitic alphabet was added to the Unicode Standard in March 2005 with the release of version 4.1.", "title": "Unicode" }, { "paragraph_id": 34, "text": "The Unicode block for Glagolitic is U+2C00–U+2C5F.", "title": "Unicode" }, { "paragraph_id": 35, "text": "The Glagolitic combining letters for Glagolitic Supplement block (U+1E000–U+1E02F) was added to the Unicode Standard in June, 2016 with the release of version 9.0:", "title": "Unicode" }, { "paragraph_id": 36, "text": "A hypothetical pre-Glagolitic writing system is typically referred to as cherty i rezy (strokes and incisions) – but no material evidence of the existence of any pre-Glagolitic Slavic writing system has been found, except for a few brief and vague references in old chronicles and \"lives of the saints\". All artifacts presented as evidence of pre-Glagolitic Slavic inscriptions have later been identified as texts in known scripts and in known non-Slavic languages, or as fakes. The well-known Chernorizets Hrabar's strokes and incisions are usually considered to be a reference to a kind of property mark or alternatively fortune-telling signs. Some \"Ruthenian letters\" found in one version of St. Cyril's life are explainable as misspelled \"Syrian letters\" (in Slavic, the roots are very similar: rus- vs. sur- or syr-), etc.", "title": "Pre-Glagolitic Slavic writing systems" }, { "paragraph_id": 37, "text": "Glagolitic script is the writing system used in the world of The Witcher books and video game series. It is also featured, in various uses, in several of the point and click adventure games made by Cateia Games, a Croatian game studio.", "title": "In popular culture" }, { "paragraph_id": 38, "text": "In the 2023 PS5 game Forspoken, Athian script, the written language of the Athian continent and cultures, seems to be based upon Glagolitic script.", "title": "In popular culture" }, { "paragraph_id": 39, "text": "It is also featured on 1 euro cent, 2 euro cent and 5 euro cent coins minted in Croatia.", "title": "In popular culture" } ]
The Glagolitic script is the oldest known Slavic alphabet. It is generally agreed that it was created in the 9th century by Saint Cyril, a monk from Thessalonica. He and his brother Saint Methodius were sent by the Byzantine Emperor Michael III in 863 to Great Moravia to spread Christianity among the West Slavs in the area. The brothers decided to translate liturgical books into the contemporary Slavic language understandable to the general population, and Cyril decided to invent a new script, Glagolitic, which he based on the local dialect of the Slavic tribes from around Thessalonica. After the deaths of Cyril and Methodius, the Glagolitic alphabet ceased to be used in Moravia for political or religious needs. In 886, the students of Cyril and Methodius were expelled and they moved to the First Bulgarian Empire instead. The Cyrillic alphabet, developed at the Preslav Literary School in the late 9th century, included some letters that were likely derived from the Glagolitic alphabet. Both Glagolitic and Cyrillic were used until the 13th–14th century in Bulgaria. Glagolitic also spread in Bohemia, and there are traces of it in Moravia and in Kievan Rus', where its use declined by the 12th century. Since then it was found largely in Croatia, preserved by the clergy mostly in Dalmatia, to write Church Slavonic, with traces also in Slavonia. It reappeared in the West Slavic area in the 14th century, but subsided by the next century. The script was attributed to St. Jerome in the Croatian lands up until the end of the 18th century, which was popular even if wrong. With the adoption of Latin and Cyrillic alphabets in all Slavic-speaking countries, by the early modern times the Glagolitic script remained in limited liturgical use, and went out of use in the 19th century. Since then it has been a topic of academic interest, after a number of archeological discoveries.
2001-11-13T00:49:35Z
2023-12-30T21:31:16Z
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https://en.wikipedia.org/wiki/Glagolitic_script
12,354
Greatest common divisor
In mathematics, the greatest common divisor (GCD) of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers. For two integers x, y, the greatest common divisor of x and y is denoted gcd ( x , y ) {\displaystyle \gcd(x,y)} . For example, the GCD of 8 and 12 is 4, that is, gcd ( 8 , 12 ) = 4 {\displaystyle \gcd(8,12)=4} . In the name "greatest common divisor", the adjective "greatest" may be replaced by "highest", and the word "divisor" may be replaced by "factor", so that other names include highest common factor (hcf), etc. Historically, other names for the same concept have included greatest common measure. This notion can be extended to polynomials (see Polynomial greatest common divisor) and other commutative rings (see § In commutative rings below). The greatest common divisor (GCD) of integers a and b, at least one of which is nonzero, is the greatest positive integer d such that d is a divisor of both a and b; that is, there are integers e and f such that a = de and b = df, and d is the largest such integer. The GCD of a and b is generally denoted gcd(a, b). When one of a and b is zero, the GCD is the absolute value of the nonzero integer: gcd(a, 0) = gcd(0, a) = |a|. This case is important as the terminating step of the Euclidean algorithm. The above definition is unsuitable for defining gcd(0, 0), since there is no greatest integer n such that 0 × n = 0. However, zero is its own greatest divisor if greatest is understood in the context of the divisibility relation, so gcd(0, 0) is commonly defined as 0. This preserves the usual identities for GCD, and in particular Bézout's identity, namely that gcd(a, b) generates the same ideal as {a, b}. This convention is followed by many computer algebra systems. Nonetheless, some authors leave gcd(0, 0) undefined. The GCD of a and b is their greatest positive common divisor in the preorder relation of divisibility. This means that the common divisors of a and b are exactly the divisors of their GCD. This is commonly proved by using either Euclid's lemma, the fundamental theorem of arithmetic, or the Euclidean algorithm. This is the meaning of "greatest" that is used for the generalizations of the concept of GCD. The number 54 can be expressed as a product of two integers in several different ways: Thus the complete list of divisors of 54 is 1 , 2 , 3 , 6 , 9 , 18 , 27 , 54 {\displaystyle 1,2,3,6,9,18,27,54} . Similarly, the divisors of 24 are 1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 {\displaystyle 1,2,3,4,6,8,12,24} . The numbers that these two lists have in common are the common divisors of 54 and 24, that is, Of these, the greatest is 6, so it is the greatest common divisor: Computing all divisors of the two numbers in this way is usually not efficient, especially for large numbers that have many divisors. Much more efficient methods are described in § Calculation. Two numbers are called relatively prime, or coprime, if their greatest common divisor equals 1. For example, 9 and 28 are coprime. For example, a 24-by-60 rectangular area can be divided into a grid of: 1-by-1 squares, 2-by-2 squares, 3-by-3 squares, 4-by-4 squares, 6-by-6 squares or 12-by-12 squares. Therefore, 12 is the greatest common divisor of 24 and 60. A 24-by-60 rectangular area can thus be divided into a grid of 12-by-12 squares, with two squares along one edge (24/12 = 2) and five squares along the other (60/12 = 5). The greatest common divisor is useful for reducing fractions to the lowest terms. For example, gcd(42, 56) = 14, therefore, The least common multiple of two integers that are not both zero can be computed from their greatest common divisor, by using the relation Greatest common divisors can be computed by determining the prime factorizations of the two numbers and comparing factors. For example, to compute gcd(48, 180), we find the prime factorizations 48 = 2 · 3 and 180 = 2 · 3 · 5; the GCD is then 2 · 3 · 5 = 2 · 3 · 5 = 12 The corresponding LCM is then 2 · 3 · 5 = 2 · 3 · 5 = 720. In practice, this method is only feasible for small numbers, as computing prime factorizations takes too long. The method introduced by Euclid for computing greatest common divisors is based on the fact that, given two positive integers a and b such that a > b, the common divisors of a and b are the same as the common divisors of a – b and b. So, Euclid's method for computing the greatest common divisor of two positive integers consists of replacing the larger number by the difference of the numbers, and repeating this until the two numbers are equal: that is their greatest common divisor. For example, to compute gcd(48,18), one proceeds as follows: So gcd(48, 18) = 6. This method can be very slow if one number is much larger than the other. So, the variant that follows is generally preferred. A more efficient method is the Euclidean algorithm, a variant in which the difference of the two numbers a and b is replaced by the remainder of the Euclidean division (also called division with remainder) of a by b. Denoting this remainder as a mod b, the algorithm replaces (a, b) by (b, a mod b) repeatedly until the pair is (d, 0), where d is the greatest common divisor. For example, to compute gcd(48,18), the computation is as follows: This again gives gcd(48, 18) = 6. Lehmer's algorithm is based on the observation that the initial quotients produced by Euclid's algorithm can be determined based on only the first few digits; this is useful for numbers that are larger than a computer word. In essence, one extracts initial digits, typically forming one or two computer words, and runs Euclid's algorithms on these smaller numbers, as long as it is guaranteed that the quotients are the same with those that would be obtained with the original numbers. The quotients are collected into a small 2-by-2 transformation matrix (a matrix of single-word integers) to reduce the original numbers. This process is repeated until numbers are small enough that the binary algorithm (see below) is more efficient. This algorithm improves speed, because it reduces the number of operations on very large numbers, and can use hardware arithmetic for most operations. In fact, most of the quotients are very small, so a fair number of steps of the Euclidean algorithm can be collected in a 2-by-2 matrix of single-word integers. When Lehmer's algorithm encounters a quotient that is too large, it must fall back to one iteration of Euclidean algorithm, with a Euclidean division of large numbers. The binary GCD algorithm uses only subtraction and division by 2. The method is as follows: Let a and b be the two non-negative integers. Let the integer d be 0. There are five possibilities: As gcd(a, a) = a, the desired GCD is a × 2 (as a and b are changed in the other cases, and d records the number of times that a and b have been both divided by 2 in the next step, the GCD of the initial pair is the product of a and 2). Then 2 is a common divisor. Divide both a and b by 2, increment d by 1 to record the number of times 2 is a common divisor and continue. Then 2 is not a common divisor. Divide a by 2 and continue. Then 2 is not a common divisor. Divide b by 2 and continue. As gcd(a,b) = gcd(b,a), if a < b then exchange a and b. The number c = a − b is positive and smaller than a. Any number that divides a and b must also divide c so every common divisor of a and b is also a common divisor of b and c. Similarly, a = b + c and every common divisor of b and c is also a common divisor of a and b. So the two pairs (a, b) and (b, c) have the same common divisors, and thus gcd(a,b) = gcd(b,c). Moreover, as a and b are both odd, c is even, the process can be continued with the pair (a, b) replaced by the smaller numbers (c/2, b) without changing the GCD. Each of the above steps reduces at least one of a and b while leaving them non-negative and so can only be repeated a finite number of times. Thus eventually the process results in a = b, the stopping case. Then the GCD is a × 2. Example: (a, b, d) = (48, 18, 0) → (24, 9, 1) → (12, 9, 1) → (6, 9, 1) → (3, 9, 1) → (3, 3, 1) ; the original GCD is thus the product 6 of 2 = 2 and a = b = 3. The binary GCD algorithm is particularly easy to implement on binary computers. Its computational complexity is The computational complexity is usually given in terms of the length n of the input. Here, this length is n = log a + log b , {\displaystyle n=\log a+\log b,} and the complexity is thus If a and b are both nonzero, the greatest common divisor of a and b can be computed by using least common multiple (LCM) of a and b: but more commonly the LCM is computed from the GCD. Using Thomae's function f, which generalizes to a and b rational numbers or commensurable real numbers. Keith Slavin has shown that for odd a ≥ 1: which is a function that can be evaluated for complex b. Wolfgang Schramm has shown that is an entire function in the variable b for all positive integers a where cd(k) is Ramanujan's sum. The computational complexity of the computation of greatest common divisors has been widely studied. If one uses the Euclidean algorithm and the elementary algorithms for multiplication and division, the computation of the greatest common divisor of two integers of at most n bits is O ( n 2 ) . {\displaystyle O(n^{2}).} This means that the computation of greatest common divisor has, up to a constant factor, the same complexity as the multiplication. However, if a fast multiplication algorithm is used, one may modify the Euclidean algorithm for improving the complexity, but the computation of a greatest common divisor becomes slower than the multiplication. More precisely, if the multiplication of two integers of n bits takes a time of T(n), then the fastest known algorithm for greatest common divisor has a complexity O ( T ( n ) log n ) . {\displaystyle O\left(T(n)\log n\right).} This implies that the fastest known algorithm has a complexity of O ( n ( log n ) 2 ) . {\displaystyle O\left(n\,(\log n)^{2}\right).} Previous complexities are valid for the usual models of computation, specifically multitape Turing machines and random-access machines. The computation of the greatest common divisors belongs thus to the class of problems solvable in quasilinear time. A fortiori, the corresponding decision problem belongs to the class P of problems solvable in polynomial time. The GCD problem is not known to be in NC, and so there is no known way to parallelize it efficiently; nor is it known to be P-complete, which would imply that it is unlikely to be possible to efficiently parallelize GCD computation. Shallcross et al. showed that a related problem (EUGCD, determining the remainder sequence arising during the Euclidean algorithm) is NC-equivalent to the problem of integer linear programming with two variables; if either problem is in NC or is P-complete, the other is as well. Since NC contains NL, it is also unknown whether a space-efficient algorithm for computing the GCD exists, even for nondeterministic Turing machines. Although the problem is not known to be in NC, parallel algorithms asymptotically faster than the Euclidean algorithm exist; the fastest known deterministic algorithm is by Chor and Goldreich, which (in the CRCW-PRAM model) can solve the problem in O(n/log n) time with n processors. Randomized algorithms can solve the problem in O((log n)) time on exp ( O ( n log n ) ) {\displaystyle \exp \left(O\left({\sqrt {n\log n}}\right)\right)} processors (this is superpolynomial). In 1972, James E. Nymann showed that k integers, chosen independently and uniformly from {1, ..., n}, are coprime with probability 1/ζ(k) as n goes to infinity, where ζ refers to the Riemann zeta function. (See coprime for a derivation.) This result was extended in 1987 to show that the probability that k random integers have greatest common divisor d is d/ζ(k). Using this information, the expected value of the greatest common divisor function can be seen (informally) to not exist when k = 2. In this case the probability that the GCD equals d is d/ζ(2), and since ζ(2) = π/6 we have This last summation is the harmonic series, which diverges. However, when k ≥ 3, the expected value is well-defined, and by the above argument, it is For k = 3, this is approximately equal to 1.3684. For k = 4, it is approximately 1.1106. The notion of greatest common divisor can more generally be defined for elements of an arbitrary commutative ring, although in general there need not exist one for every pair of elements. If R is a commutative ring, and a and b are in R, then an element d of R is called a common divisor of a and b if it divides both a and b (that is, if there are elements x and y in R such that d·x = a and d·y = b). If d is a common divisor of a and b, and every common divisor of a and b divides d, then d is called a greatest common divisor of a and b. With this definition, two elements a and b may very well have several greatest common divisors, or none at all. If R is an integral domain then any two GCD's of a and b must be associate elements, since by definition either one must divide the other; indeed if a GCD exists, any one of its associates is a GCD as well. Existence of a GCD is not assured in arbitrary integral domains. However, if R is a unique factorization domain, then any two elements have a GCD, and more generally this is true in GCD domains. If R is a Euclidean domain in which euclidean division is given algorithmically (as is the case for instance when R = F[X] where F is a field, or when R is the ring of Gaussian integers), then greatest common divisors can be computed using a form of the Euclidean algorithm based on the division procedure. The following is an example of an integral domain with two elements that do not have a GCD: The elements 2 and 1 + √−3 are two maximal common divisors (that is, any common divisor which is a multiple of 2 is associated to 2, the same holds for 1 + √−3, but they are not associated, so there is no greatest common divisor of a and b. Corresponding to the Bézout property we may, in any commutative ring, consider the collection of elements of the form pa + qb, where p and q range over the ring. This is the ideal generated by a and b, and is denoted simply (a, b). In a ring all of whose ideals are principal (a principal ideal domain or PID), this ideal will be identical with the set of multiples of some ring element d; then this d is a greatest common divisor of a and b. But the ideal (a, b) can be useful even when there is no greatest common divisor of a and b. (Indeed, Ernst Kummer used this ideal as a replacement for a GCD in his treatment of Fermat's Last Theorem, although he envisioned it as the set of multiples of some hypothetical, or ideal, ring element d, whence the ring-theoretic term.)
[ { "paragraph_id": 0, "text": "In mathematics, the greatest common divisor (GCD) of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers. For two integers x, y, the greatest common divisor of x and y is denoted gcd ( x , y ) {\\displaystyle \\gcd(x,y)} . For example, the GCD of 8 and 12 is 4, that is, gcd ( 8 , 12 ) = 4 {\\displaystyle \\gcd(8,12)=4} .", "title": "" }, { "paragraph_id": 1, "text": "In the name \"greatest common divisor\", the adjective \"greatest\" may be replaced by \"highest\", and the word \"divisor\" may be replaced by \"factor\", so that other names include highest common factor (hcf), etc. Historically, other names for the same concept have included greatest common measure.", "title": "" }, { "paragraph_id": 2, "text": "This notion can be extended to polynomials (see Polynomial greatest common divisor) and other commutative rings (see § In commutative rings below).", "title": "" }, { "paragraph_id": 3, "text": "The greatest common divisor (GCD) of integers a and b, at least one of which is nonzero, is the greatest positive integer d such that d is a divisor of both a and b; that is, there are integers e and f such that a = de and b = df, and d is the largest such integer. The GCD of a and b is generally denoted gcd(a, b).", "title": "Overview" }, { "paragraph_id": 4, "text": "When one of a and b is zero, the GCD is the absolute value of the nonzero integer: gcd(a, 0) = gcd(0, a) = |a|. This case is important as the terminating step of the Euclidean algorithm.", "title": "Overview" }, { "paragraph_id": 5, "text": "The above definition is unsuitable for defining gcd(0, 0), since there is no greatest integer n such that 0 × n = 0. However, zero is its own greatest divisor if greatest is understood in the context of the divisibility relation, so gcd(0, 0) is commonly defined as 0. This preserves the usual identities for GCD, and in particular Bézout's identity, namely that gcd(a, b) generates the same ideal as {a, b}. This convention is followed by many computer algebra systems. Nonetheless, some authors leave gcd(0, 0) undefined.", "title": "Overview" }, { "paragraph_id": 6, "text": "The GCD of a and b is their greatest positive common divisor in the preorder relation of divisibility. This means that the common divisors of a and b are exactly the divisors of their GCD. This is commonly proved by using either Euclid's lemma, the fundamental theorem of arithmetic, or the Euclidean algorithm. This is the meaning of \"greatest\" that is used for the generalizations of the concept of GCD.", "title": "Overview" }, { "paragraph_id": 7, "text": "The number 54 can be expressed as a product of two integers in several different ways:", "title": "Overview" }, { "paragraph_id": 8, "text": "Thus the complete list of divisors of 54 is 1 , 2 , 3 , 6 , 9 , 18 , 27 , 54 {\\displaystyle 1,2,3,6,9,18,27,54} . Similarly, the divisors of 24 are 1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 {\\displaystyle 1,2,3,4,6,8,12,24} . The numbers that these two lists have in common are the common divisors of 54 and 24, that is,", "title": "Overview" }, { "paragraph_id": 9, "text": "Of these, the greatest is 6, so it is the greatest common divisor:", "title": "Overview" }, { "paragraph_id": 10, "text": "Computing all divisors of the two numbers in this way is usually not efficient, especially for large numbers that have many divisors. Much more efficient methods are described in § Calculation.", "title": "Overview" }, { "paragraph_id": 11, "text": "Two numbers are called relatively prime, or coprime, if their greatest common divisor equals 1. For example, 9 and 28 are coprime.", "title": "Overview" }, { "paragraph_id": 12, "text": "For example, a 24-by-60 rectangular area can be divided into a grid of: 1-by-1 squares, 2-by-2 squares, 3-by-3 squares, 4-by-4 squares, 6-by-6 squares or 12-by-12 squares. Therefore, 12 is the greatest common divisor of 24 and 60. A 24-by-60 rectangular area can thus be divided into a grid of 12-by-12 squares, with two squares along one edge (24/12 = 2) and five squares along the other (60/12 = 5).", "title": "Overview" }, { "paragraph_id": 13, "text": "The greatest common divisor is useful for reducing fractions to the lowest terms. For example, gcd(42, 56) = 14, therefore,", "title": "Applications" }, { "paragraph_id": 14, "text": "The least common multiple of two integers that are not both zero can be computed from their greatest common divisor, by using the relation", "title": "Applications" }, { "paragraph_id": 15, "text": "Greatest common divisors can be computed by determining the prime factorizations of the two numbers and comparing factors. For example, to compute gcd(48, 180), we find the prime factorizations 48 = 2 · 3 and 180 = 2 · 3 · 5; the GCD is then 2 · 3 · 5 = 2 · 3 · 5 = 12 The corresponding LCM is then 2 · 3 · 5 = 2 · 3 · 5 = 720.", "title": "Calculation" }, { "paragraph_id": 16, "text": "In practice, this method is only feasible for small numbers, as computing prime factorizations takes too long.", "title": "Calculation" }, { "paragraph_id": 17, "text": "The method introduced by Euclid for computing greatest common divisors is based on the fact that, given two positive integers a and b such that a > b, the common divisors of a and b are the same as the common divisors of a – b and b.", "title": "Calculation" }, { "paragraph_id": 18, "text": "So, Euclid's method for computing the greatest common divisor of two positive integers consists of replacing the larger number by the difference of the numbers, and repeating this until the two numbers are equal: that is their greatest common divisor.", "title": "Calculation" }, { "paragraph_id": 19, "text": "For example, to compute gcd(48,18), one proceeds as follows:", "title": "Calculation" }, { "paragraph_id": 20, "text": "So gcd(48, 18) = 6.", "title": "Calculation" }, { "paragraph_id": 21, "text": "This method can be very slow if one number is much larger than the other. So, the variant that follows is generally preferred.", "title": "Calculation" }, { "paragraph_id": 22, "text": "A more efficient method is the Euclidean algorithm, a variant in which the difference of the two numbers a and b is replaced by the remainder of the Euclidean division (also called division with remainder) of a by b.", "title": "Calculation" }, { "paragraph_id": 23, "text": "Denoting this remainder as a mod b, the algorithm replaces (a, b) by (b, a mod b) repeatedly until the pair is (d, 0), where d is the greatest common divisor.", "title": "Calculation" }, { "paragraph_id": 24, "text": "For example, to compute gcd(48,18), the computation is as follows:", "title": "Calculation" }, { "paragraph_id": 25, "text": "This again gives gcd(48, 18) = 6.", "title": "Calculation" }, { "paragraph_id": 26, "text": "Lehmer's algorithm is based on the observation that the initial quotients produced by Euclid's algorithm can be determined based on only the first few digits; this is useful for numbers that are larger than a computer word. In essence, one extracts initial digits, typically forming one or two computer words, and runs Euclid's algorithms on these smaller numbers, as long as it is guaranteed that the quotients are the same with those that would be obtained with the original numbers. The quotients are collected into a small 2-by-2 transformation matrix (a matrix of single-word integers) to reduce the original numbers. This process is repeated until numbers are small enough that the binary algorithm (see below) is more efficient.", "title": "Calculation" }, { "paragraph_id": 27, "text": "This algorithm improves speed, because it reduces the number of operations on very large numbers, and can use hardware arithmetic for most operations. In fact, most of the quotients are very small, so a fair number of steps of the Euclidean algorithm can be collected in a 2-by-2 matrix of single-word integers. When Lehmer's algorithm encounters a quotient that is too large, it must fall back to one iteration of Euclidean algorithm, with a Euclidean division of large numbers.", "title": "Calculation" }, { "paragraph_id": 28, "text": "The binary GCD algorithm uses only subtraction and division by 2. The method is as follows: Let a and b be the two non-negative integers. Let the integer d be 0. There are five possibilities:", "title": "Calculation" }, { "paragraph_id": 29, "text": "As gcd(a, a) = a, the desired GCD is a × 2 (as a and b are changed in the other cases, and d records the number of times that a and b have been both divided by 2 in the next step, the GCD of the initial pair is the product of a and 2).", "title": "Calculation" }, { "paragraph_id": 30, "text": "Then 2 is a common divisor. Divide both a and b by 2, increment d by 1 to record the number of times 2 is a common divisor and continue.", "title": "Calculation" }, { "paragraph_id": 31, "text": "Then 2 is not a common divisor. Divide a by 2 and continue.", "title": "Calculation" }, { "paragraph_id": 32, "text": "Then 2 is not a common divisor. Divide b by 2 and continue.", "title": "Calculation" }, { "paragraph_id": 33, "text": "As gcd(a,b) = gcd(b,a), if a < b then exchange a and b. The number c = a − b is positive and smaller than a. Any number that divides a and b must also divide c so every common divisor of a and b is also a common divisor of b and c. Similarly, a = b + c and every common divisor of b and c is also a common divisor of a and b. So the two pairs (a, b) and (b, c) have the same common divisors, and thus gcd(a,b) = gcd(b,c). Moreover, as a and b are both odd, c is even, the process can be continued with the pair (a, b) replaced by the smaller numbers (c/2, b) without changing the GCD.", "title": "Calculation" }, { "paragraph_id": 34, "text": "Each of the above steps reduces at least one of a and b while leaving them non-negative and so can only be repeated a finite number of times. Thus eventually the process results in a = b, the stopping case. Then the GCD is a × 2.", "title": "Calculation" }, { "paragraph_id": 35, "text": "Example: (a, b, d) = (48, 18, 0) → (24, 9, 1) → (12, 9, 1) → (6, 9, 1) → (3, 9, 1) → (3, 3, 1) ; the original GCD is thus the product 6 of 2 = 2 and a = b = 3.", "title": "Calculation" }, { "paragraph_id": 36, "text": "The binary GCD algorithm is particularly easy to implement on binary computers. Its computational complexity is", "title": "Calculation" }, { "paragraph_id": 37, "text": "The computational complexity is usually given in terms of the length n of the input. Here, this length is n = log a + log b , {\\displaystyle n=\\log a+\\log b,} and the complexity is thus", "title": "Calculation" }, { "paragraph_id": 38, "text": "If a and b are both nonzero, the greatest common divisor of a and b can be computed by using least common multiple (LCM) of a and b:", "title": "Calculation" }, { "paragraph_id": 39, "text": "but more commonly the LCM is computed from the GCD.", "title": "Calculation" }, { "paragraph_id": 40, "text": "Using Thomae's function f,", "title": "Calculation" }, { "paragraph_id": 41, "text": "which generalizes to a and b rational numbers or commensurable real numbers.", "title": "Calculation" }, { "paragraph_id": 42, "text": "Keith Slavin has shown that for odd a ≥ 1:", "title": "Calculation" }, { "paragraph_id": 43, "text": "which is a function that can be evaluated for complex b. Wolfgang Schramm has shown that", "title": "Calculation" }, { "paragraph_id": 44, "text": "is an entire function in the variable b for all positive integers a where cd(k) is Ramanujan's sum.", "title": "Calculation" }, { "paragraph_id": 45, "text": "The computational complexity of the computation of greatest common divisors has been widely studied. If one uses the Euclidean algorithm and the elementary algorithms for multiplication and division, the computation of the greatest common divisor of two integers of at most n bits is O ( n 2 ) . {\\displaystyle O(n^{2}).} This means that the computation of greatest common divisor has, up to a constant factor, the same complexity as the multiplication.", "title": "Calculation" }, { "paragraph_id": 46, "text": "However, if a fast multiplication algorithm is used, one may modify the Euclidean algorithm for improving the complexity, but the computation of a greatest common divisor becomes slower than the multiplication. More precisely, if the multiplication of two integers of n bits takes a time of T(n), then the fastest known algorithm for greatest common divisor has a complexity O ( T ( n ) log n ) . {\\displaystyle O\\left(T(n)\\log n\\right).} This implies that the fastest known algorithm has a complexity of O ( n ( log n ) 2 ) . {\\displaystyle O\\left(n\\,(\\log n)^{2}\\right).}", "title": "Calculation" }, { "paragraph_id": 47, "text": "Previous complexities are valid for the usual models of computation, specifically multitape Turing machines and random-access machines.", "title": "Calculation" }, { "paragraph_id": 48, "text": "The computation of the greatest common divisors belongs thus to the class of problems solvable in quasilinear time. A fortiori, the corresponding decision problem belongs to the class P of problems solvable in polynomial time. The GCD problem is not known to be in NC, and so there is no known way to parallelize it efficiently; nor is it known to be P-complete, which would imply that it is unlikely to be possible to efficiently parallelize GCD computation. Shallcross et al. showed that a related problem (EUGCD, determining the remainder sequence arising during the Euclidean algorithm) is NC-equivalent to the problem of integer linear programming with two variables; if either problem is in NC or is P-complete, the other is as well. Since NC contains NL, it is also unknown whether a space-efficient algorithm for computing the GCD exists, even for nondeterministic Turing machines.", "title": "Calculation" }, { "paragraph_id": 49, "text": "Although the problem is not known to be in NC, parallel algorithms asymptotically faster than the Euclidean algorithm exist; the fastest known deterministic algorithm is by Chor and Goldreich, which (in the CRCW-PRAM model) can solve the problem in O(n/log n) time with n processors. Randomized algorithms can solve the problem in O((log n)) time on exp ( O ( n log n ) ) {\\displaystyle \\exp \\left(O\\left({\\sqrt {n\\log n}}\\right)\\right)} processors (this is superpolynomial).", "title": "Calculation" }, { "paragraph_id": 50, "text": "In 1972, James E. Nymann showed that k integers, chosen independently and uniformly from {1, ..., n}, are coprime with probability 1/ζ(k) as n goes to infinity, where ζ refers to the Riemann zeta function. (See coprime for a derivation.) This result was extended in 1987 to show that the probability that k random integers have greatest common divisor d is d/ζ(k).", "title": "Probabilities and expected value" }, { "paragraph_id": 51, "text": "Using this information, the expected value of the greatest common divisor function can be seen (informally) to not exist when k = 2. In this case the probability that the GCD equals d is d/ζ(2), and since ζ(2) = π/6 we have", "title": "Probabilities and expected value" }, { "paragraph_id": 52, "text": "This last summation is the harmonic series, which diverges. However, when k ≥ 3, the expected value is well-defined, and by the above argument, it is", "title": "Probabilities and expected value" }, { "paragraph_id": 53, "text": "For k = 3, this is approximately equal to 1.3684. For k = 4, it is approximately 1.1106.", "title": "Probabilities and expected value" }, { "paragraph_id": 54, "text": "The notion of greatest common divisor can more generally be defined for elements of an arbitrary commutative ring, although in general there need not exist one for every pair of elements.", "title": "In commutative rings" }, { "paragraph_id": 55, "text": "If R is a commutative ring, and a and b are in R, then an element d of R is called a common divisor of a and b if it divides both a and b (that is, if there are elements x and y in R such that d·x = a and d·y = b). If d is a common divisor of a and b, and every common divisor of a and b divides d, then d is called a greatest common divisor of a and b.", "title": "In commutative rings" }, { "paragraph_id": 56, "text": "With this definition, two elements a and b may very well have several greatest common divisors, or none at all. If R is an integral domain then any two GCD's of a and b must be associate elements, since by definition either one must divide the other; indeed if a GCD exists, any one of its associates is a GCD as well. Existence of a GCD is not assured in arbitrary integral domains. However, if R is a unique factorization domain, then any two elements have a GCD, and more generally this is true in GCD domains. If R is a Euclidean domain in which euclidean division is given algorithmically (as is the case for instance when R = F[X] where F is a field, or when R is the ring of Gaussian integers), then greatest common divisors can be computed using a form of the Euclidean algorithm based on the division procedure.", "title": "In commutative rings" }, { "paragraph_id": 57, "text": "The following is an example of an integral domain with two elements that do not have a GCD:", "title": "In commutative rings" }, { "paragraph_id": 58, "text": "The elements 2 and 1 + √−3 are two maximal common divisors (that is, any common divisor which is a multiple of 2 is associated to 2, the same holds for 1 + √−3, but they are not associated, so there is no greatest common divisor of a and b.", "title": "In commutative rings" }, { "paragraph_id": 59, "text": "Corresponding to the Bézout property we may, in any commutative ring, consider the collection of elements of the form pa + qb, where p and q range over the ring. This is the ideal generated by a and b, and is denoted simply (a, b). In a ring all of whose ideals are principal (a principal ideal domain or PID), this ideal will be identical with the set of multiples of some ring element d; then this d is a greatest common divisor of a and b. But the ideal (a, b) can be useful even when there is no greatest common divisor of a and b. (Indeed, Ernst Kummer used this ideal as a replacement for a GCD in his treatment of Fermat's Last Theorem, although he envisioned it as the set of multiples of some hypothetical, or ideal, ring element d, whence the ring-theoretic term.)", "title": "In commutative rings" } ]
In mathematics, the greatest common divisor (GCD) of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers. For two integers x, y, the greatest common divisor of x and y is denoted gcd . For example, the GCD of 8 and 12 is 4, that is, gcd = 4 . In the name "greatest common divisor", the adjective "greatest" may be replaced by "highest", and the word "divisor" may be replaced by "factor", so that other names include highest common factor (hcf), etc. Historically, other names for the same concept have included greatest common measure. This notion can be extended to polynomials and other commutative rings.
2001-11-15T18:33:26Z
2023-12-13T19:09:23Z
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https://en.wikipedia.org/wiki/Greatest_common_divisor
12,357
Gazpacho
Gazpacho (Spanish: [ɡaθˈpatʃo]) or gaspacho (Portuguese: [ɡɐʃˈpaʃu]), also called Andalusian gazpacho, is a cold soup and drink made of raw, blended vegetables. It originated in the southern regions of the Iberian peninsula and spread into other areas. Gazpacho is widely eaten in Spain and Portugal, particularly during hot summers, since it is refreshing and cool. Although there are other recipes called gazpacho, such as gazpacho manchego, the standard usage implies a soup. There are also a number of dishes that are closely related and often considered variants thereof, such as ajoblanco, salmorejo, pipirrana, porra antequerana (closer to a bread soup), and cojondongo. There are many theories as to the origin of gazpacho, including one that says it was a soup of bread, olive oil, water, vinegar, and garlic that arrived in Spain with the Romans. The word "gazpacho" may come from the Latin adjective caccabaceus, derived from caccabus ("cauldron"), attested in the works of Tertulian, Zeno of Verona and others. This word was applied in ancient Rome to a type of bread very similar to the “torta de gazpacho”. Once in Spain, it became a part of southern cuisine, particularly in Córdoba, Seville or Granada Castilian kingdoms, using stale bread, garlic, olive oil, salt, and vinegar, similar to ajoblanco. During the 19th century, red gazpacho was created when tomatoes were added to the ingredients. This version spread internationally and remains commonly known. There are many modern variations of gazpacho with avocados, cucumbers, parsley, strawberries, watermelon, grapes, meat stock, seafood, and other ingredients instead of tomatoes and bread. Most gazpacho includes stale bread, tomato, cucumbers, onion, bell peppers, garlic, olive oil, wine vinegar, water, and salt. Northern recipes often include cumin and/or pimentón (smoked sweet paprika). Traditionally, gazpacho was made by pounding the vegetables in a mortar with a pestle; this more laborious method is still sometimes used as it helps keep the gazpacho cool and avoids the foam and silky consistency of smoothie versions made in blenders or food processors. A traditional way of preparation is to pound garlic cloves in a mortar, add a little soaked stale bread, then olive oil and salt, to make a paste. Next, very ripe tomatoes and vinegar are added to this paste. In the days before refrigeration, the gazpacho was left in an unglazed earthenware pot to cool by evaporation, with the addition of some water. Gazpacho may be served alone or with garnishes, such as hard-boiled eggs, chopped ham (in the salmorejo variety from Córdoba), chopped almonds, cumin crushed with mint, orange segments, finely chopped green bell peppers, onion, tomato or cucumber. In Extremadura, local ham was added to the gazpacho itself rather than as a garnish; this is called gazpacho extremeño. Andalusian sources say that gazpacho should be slightly chilled, but not iced. The ingredients, texture, and thickness of gazpacho vary regionally and between different cooks. Similar cold raw soups such as arjamolho in Portugal, porra antequerana and ajoblanco, are also popular in Andalusia, although not as widespread as gazpacho. Gazpacho and salmorejo are especially similar since they are both tomato-based cold soups that are widely popular in Spain; the main difference between gazpacho and salmorejo is the culinary technique used since gazpacho is a soup whereas salmorejo is an emulsion. In addition, while both dishes share the main ingredients of tomato, olive oil, bread, and garlic, gazpacho can also be prepared with cucumber, peppers, and vinegar, whereas salmorejo cannot. Gazpacho manchego, despite its name, is a meat stew, served hot, not a variation on the cold vegetable soup. The original recipe using bread, water, vinegar, oil, and salt is traditional in the Iberian Peninsula, perhaps going back to Roman times. Every central and southern region has its own variety. The humble gazpacho became a very deeply rooted food for peasants and shepherds in Spain. The basic gazpacho gave rise to many variants, some also called gazpacho, others not; some authors have tried to classify all these variations. Gazpachos may be classified by colour: the most usual red ones (which contain tomato), white ones (which contain no tomato, but include dried fruits), and green ones (which are white but contain some spices that make them green). These variants have their basic ingredients in common, including garlic paste which works as an emulsifier, bread, olive oil, vinegar and salt. In addition to the traditional ingredients, red fruits such as strawberries, melon, etc., may be added, making the gazpacho a bit sweeter. Gazpacho may be served as a starter, main dish, or tapa. A popular variation comes from the town of Rota in the province of Cádiz. During times of drought, there was not enough water to make gazpacho; thus, arranque has the same ingredients as gazpacho, but requires less water and bread, making it a sort of cream. Some people add more bread until it takes on the consistency of a dip. In Extremadura, gazpachos are a kind of purée or thick gazpacho known as cojondongo, or cojondongo del gañán, made of breadcrumbs, garlic, oil, and vinegar, then topped with chopped onions, tomato and peppers. Gazpacho manchego, as its name implies, is made in the east region of La Mancha, in Albacete and nearby areas, and is popular in other areas in the center and southwest of the country. It is a meat stew, whose main ingredients are small game animals or birds such as rabbit, hare, quail, or pigeon, and flatbread, and may include garlic, tomatoes, and mushrooms. It is cooked in a cauldron and served hot. Another well-known variant in La Mancha is gazpacho de pastor or galiano. Some other hot meat or fish dishes from other regions are called gazpacho (gazpacho jumillano, gazpacho de Yecla, gazpacho de Requena, etc.) Gazpacho is often eaten during the very hot and dry summers in Castilla y León. The gazpacho made in La Moraña in the province of Ávila has large pieces of vegetables floating in a watery soup.
[ { "paragraph_id": 0, "text": "Gazpacho (Spanish: [ɡaθˈpatʃo]) or gaspacho (Portuguese: [ɡɐʃˈpaʃu]), also called Andalusian gazpacho, is a cold soup and drink made of raw, blended vegetables. It originated in the southern regions of the Iberian peninsula and spread into other areas. Gazpacho is widely eaten in Spain and Portugal, particularly during hot summers, since it is refreshing and cool.", "title": "" }, { "paragraph_id": 1, "text": "Although there are other recipes called gazpacho, such as gazpacho manchego, the standard usage implies a soup. There are also a number of dishes that are closely related and often considered variants thereof, such as ajoblanco, salmorejo, pipirrana, porra antequerana (closer to a bread soup), and cojondongo.", "title": "" }, { "paragraph_id": 2, "text": "There are many theories as to the origin of gazpacho, including one that says it was a soup of bread, olive oil, water, vinegar, and garlic that arrived in Spain with the Romans. The word \"gazpacho\" may come from the Latin adjective caccabaceus, derived from caccabus (\"cauldron\"), attested in the works of Tertulian, Zeno of Verona and others. This word was applied in ancient Rome to a type of bread very similar to the “torta de gazpacho”. Once in Spain, it became a part of southern cuisine, particularly in Córdoba, Seville or Granada Castilian kingdoms, using stale bread, garlic, olive oil, salt, and vinegar, similar to ajoblanco. During the 19th century, red gazpacho was created when tomatoes were added to the ingredients. This version spread internationally and remains commonly known.", "title": "History" }, { "paragraph_id": 3, "text": "There are many modern variations of gazpacho with avocados, cucumbers, parsley, strawberries, watermelon, grapes, meat stock, seafood, and other ingredients instead of tomatoes and bread.", "title": "History" }, { "paragraph_id": 4, "text": "Most gazpacho includes stale bread, tomato, cucumbers, onion, bell peppers, garlic, olive oil, wine vinegar, water, and salt. Northern recipes often include cumin and/or pimentón (smoked sweet paprika).", "title": "Ingredients and preparation" }, { "paragraph_id": 5, "text": "Traditionally, gazpacho was made by pounding the vegetables in a mortar with a pestle; this more laborious method is still sometimes used as it helps keep the gazpacho cool and avoids the foam and silky consistency of smoothie versions made in blenders or food processors. A traditional way of preparation is to pound garlic cloves in a mortar, add a little soaked stale bread, then olive oil and salt, to make a paste. Next, very ripe tomatoes and vinegar are added to this paste. In the days before refrigeration, the gazpacho was left in an unglazed earthenware pot to cool by evaporation, with the addition of some water.", "title": "Ingredients and preparation" }, { "paragraph_id": 6, "text": "Gazpacho may be served alone or with garnishes, such as hard-boiled eggs, chopped ham (in the salmorejo variety from Córdoba), chopped almonds, cumin crushed with mint, orange segments, finely chopped green bell peppers, onion, tomato or cucumber. In Extremadura, local ham was added to the gazpacho itself rather than as a garnish; this is called gazpacho extremeño. Andalusian sources say that gazpacho should be slightly chilled, but not iced.", "title": "Ingredients and preparation" }, { "paragraph_id": 7, "text": "The ingredients, texture, and thickness of gazpacho vary regionally and between different cooks.", "title": "Variations" }, { "paragraph_id": 8, "text": "Similar cold raw soups such as arjamolho in Portugal, porra antequerana and ajoblanco, are also popular in Andalusia, although not as widespread as gazpacho. Gazpacho and salmorejo are especially similar since they are both tomato-based cold soups that are widely popular in Spain; the main difference between gazpacho and salmorejo is the culinary technique used since gazpacho is a soup whereas salmorejo is an emulsion. In addition, while both dishes share the main ingredients of tomato, olive oil, bread, and garlic, gazpacho can also be prepared with cucumber, peppers, and vinegar, whereas salmorejo cannot.", "title": "Variations" }, { "paragraph_id": 9, "text": "Gazpacho manchego, despite its name, is a meat stew, served hot, not a variation on the cold vegetable soup.", "title": "Variations" }, { "paragraph_id": 10, "text": "The original recipe using bread, water, vinegar, oil, and salt is traditional in the Iberian Peninsula, perhaps going back to Roman times. Every central and southern region has its own variety. The humble gazpacho became a very deeply rooted food for peasants and shepherds in Spain. The basic gazpacho gave rise to many variants, some also called gazpacho, others not; some authors have tried to classify all these variations. Gazpachos may be classified by colour: the most usual red ones (which contain tomato), white ones (which contain no tomato, but include dried fruits), and green ones (which are white but contain some spices that make them green). These variants have their basic ingredients in common, including garlic paste which works as an emulsifier, bread, olive oil, vinegar and salt. In addition to the traditional ingredients, red fruits such as strawberries, melon, etc., may be added, making the gazpacho a bit sweeter. Gazpacho may be served as a starter, main dish, or tapa.", "title": "Variations" }, { "paragraph_id": 11, "text": "A popular variation comes from the town of Rota in the province of Cádiz. During times of drought, there was not enough water to make gazpacho; thus, arranque has the same ingredients as gazpacho, but requires less water and bread, making it a sort of cream. Some people add more bread until it takes on the consistency of a dip.", "title": "Variations" }, { "paragraph_id": 12, "text": "In Extremadura, gazpachos are a kind of purée or thick gazpacho known as cojondongo, or cojondongo del gañán, made of breadcrumbs, garlic, oil, and vinegar, then topped with chopped onions, tomato and peppers.", "title": "Variations" }, { "paragraph_id": 13, "text": "Gazpacho manchego, as its name implies, is made in the east region of La Mancha, in Albacete and nearby areas, and is popular in other areas in the center and southwest of the country.", "title": "Variations" }, { "paragraph_id": 14, "text": "It is a meat stew, whose main ingredients are small game animals or birds such as rabbit, hare, quail, or pigeon, and flatbread, and may include garlic, tomatoes, and mushrooms. It is cooked in a cauldron and served hot. Another well-known variant in La Mancha is gazpacho de pastor or galiano.", "title": "Variations" }, { "paragraph_id": 15, "text": "Some other hot meat or fish dishes from other regions are called gazpacho (gazpacho jumillano, gazpacho de Yecla, gazpacho de Requena, etc.)", "title": "Variations" }, { "paragraph_id": 16, "text": "Gazpacho is often eaten during the very hot and dry summers in Castilla y León. The gazpacho made in La Moraña in the province of Ávila has large pieces of vegetables floating in a watery soup.", "title": "Variations" } ]
Gazpacho or gaspacho, also called Andalusian gazpacho, is a cold soup and drink made of raw, blended vegetables. It originated in the southern regions of the Iberian peninsula and spread into other areas. Gazpacho is widely eaten in Spain and Portugal, particularly during hot summers, since it is refreshing and cool. Although there are other recipes called gazpacho, such as gazpacho manchego, the standard usage implies a soup. There are also a number of dishes that are closely related and often considered variants thereof, such as ajoblanco, salmorejo, pipirrana, porra antequerana, and cojondongo.
2001-07-26T16:06:15Z
2023-12-29T01:06:02Z
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https://en.wikipedia.org/wiki/Gazpacho
12,359
Gopher (disambiguation)
A gopher, also known as a "pocket gopher" (family Geomyidae), is a burrowing rodent native to North America and Central America. Gopher may also refer to:
[ { "paragraph_id": 0, "text": "A gopher, also known as a \"pocket gopher\" (family Geomyidae), is a burrowing rodent native to North America and Central America.", "title": "" }, { "paragraph_id": 1, "text": "Gopher may also refer to:", "title": "" } ]
A gopher, also known as a "pocket gopher", is a burrowing rodent native to North America and Central America. Gopher may also refer to:
2001-07-26T18:25:43Z
2023-08-17T00:28:49Z
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https://en.wikipedia.org/wiki/Gopher_(disambiguation)
12,361
Gnome
A gnome (/noʊm/) is a mythological creature and diminutive spirit in Renaissance magic and alchemy, introduced by Paracelsus in the 16th century and widely adopted by authors including those of modern fantasy literature. Typically small humanoids who live underground, gnome characteristics are reinterpreted to suit various storytellers and artists. Lawn ornaments crafted as gnomes were introduced during the 19th century, growing in popularity during the 20th century as garden gnomes. The word comes from Renaissance Latin gnomus, which first appears in A Book on Nymphs, Sylphs, Pygmies, and Salamanders, and on the Other Spirits by Paracelsus, published posthumously in Nysa in 1566 (and again in the Johannes Huser edition of 1589–1591 from an autograph by Paracelsus). The term may be an original invention of Paracelsus, possibly deriving the term from Latin gēnomos (itself representing a Greek γη-νομος, approximately "gē-nomos", literally "earth-dweller"). In this case, the omission of the ē is referred to as a blunder by the Oxford English Dictionary (OED). Paracelsus uses Gnomi as a synonym of Pygmæi and classifies them as earth elementals. He describes them as two spans high, very reluctant to interact with humans and able to move through solid earth as easily as humans move through air. The chthonic or earth-dwelling spirit has precedents in numerous ancient and medieval mythologies, often guarding mines and precious underground treasures, notably in the Germanic dwarfs and the Greek Chalybes, Telchines or Dactyls. The gnomes of Swiss folklore follow this template, as they are said to have caused the landslide that destroyed the Swiss village of Plurs in 1618 - the villagers had become wealthy from a local gold mine created by the gnomes, who poured liquid gold down into a vein for the benefit of humans, and were corrupted by this newfound prosperity, which greatly offended the gnomes. The English word is attested from the early 18th century. Gnomes are used in Alexander Pope's "The Rape of the Lock". The creatures from this mock-epic are small, celestial creatures which were prudish women in their past lives, and now spend all of eternity looking out for prudish women (in parallel to the guardian angels in Catholic belief). Other uses of the term gnome remain obscure until the early 19th century, when it is taken up by authors of Romanticist collections of fairy tales and becomes mostly synonymous with the older word goblin. Pope's stated source, the 1670 French satire Comte de Gabalis by Nicolas-Pierre-Henri de Montfaucon de Villars, the abbot of Villars, describes gnomes as such: The Earth is filled almost to the center with Gnomes or Pharyes, a people of small stature, the guardians of treasures, of mines, and of precious stones. They are ingenious, friends of men, and easie (sic) to be commandded (sic). They furnish the children of the Sages with as much money, as they have need of; and never ask any other reward of their services, than the glory of being commanded. The Gnomides or wives of these Gnomes or Pharyes, are little, but very handsom (sic); and their habit marvellously (sic) curious. De Villars used the term gnomide to refer to female gnomes (often "gnomid" in English translations). Modern fiction instead uses the word "gnomess" to refer to female gnomes. In 19th-century fiction, the chthonic gnome became a sort of antithesis to the more airy or luminous fairy. Nathaniel Hawthorne in Twice-Told Tales (1837) contrasts the two in "Small enough to be king of the fairies, and ugly enough to be king of the gnomes" (cited after OED). Similarly, gnomes are contrasted to elves, as in William Cullen Bryant's Little People of the Snow (1877), which has "let us have a tale of elves that ride by night, with jingling reins, or gnomes of the mine" (cited after OED). The Russian composer Mussorgsky produced a movement in his work Pictures at an Exhibition, (1874) named "Gnomus" (Latin for "The Gnome"). It is written to sound as if a gnome is moving about. Franz Hartmann in 1895 satirized materialism in an allegorical tale entitled Unter den Gnomen im Untersberg. The English translation appeared in 1896 as Among the Gnomes: An Occult Tale of Adventure in the Untersberg. In this story, the Gnomes are still clearly subterranean creatures, guarding treasures of gold within the Untersberg mountain. As a figure of 19th-century fairy tales, the term gnome became largely synonymous with other terms for "little people" by the 20th century, such as goblin, brownie, leprechaun and other instances of the household spirit type, losing its strict association with earth or the underground world. The 1967 Walt Disney movie The Gnome-Mobile The 2011 animated movie Gnomeo & Juliet The 2018 animated movie Sherlock Gnomes featured gnomish versions of several classic Sherlock Holmes characters. After World War II (with early references, in ironic use, from the late 1930s) the diminutive figurines introduced as lawn ornaments during the 19th century came to be known as garden gnomes. The image of the gnome changed further during the 1960s to 1970s, when the first plastic garden gnomes were manufactured. These gnomes followed the style of the 1937 depiction of the seven dwarves in Snow White and the Seven Dwarfs by Disney. This "Disneyfied" image of the gnome was built upon by the illustrated children's book classic Gnomes (1976), in the original Dutch Leven en werken van de Kabouter, by author Wil Huygen and artist Rien Poortvliet, followed in 1981 by The Secret Book of Gnomes. Garden gnomes share a resemblance to the Scandinavian tomte and nisse, and the Swedish term "tomte" can be translated as "gnome" in English. Several gnome themed entertainment parks exist. Notable ones are: Gnome parades are held annually at Atlanta's Inman Park Festival. Numerous one-off gnome parades have been held, including in Savannah, Georgia (April 2012) and Cleveland, Ohio (May 2011).
[ { "paragraph_id": 0, "text": "A gnome (/noʊm/) is a mythological creature and diminutive spirit in Renaissance magic and alchemy, introduced by Paracelsus in the 16th century and widely adopted by authors including those of modern fantasy literature. Typically small humanoids who live underground, gnome characteristics are reinterpreted to suit various storytellers and artists.", "title": "" }, { "paragraph_id": 1, "text": "Lawn ornaments crafted as gnomes were introduced during the 19th century, growing in popularity during the 20th century as garden gnomes.", "title": "" }, { "paragraph_id": 2, "text": "The word comes from Renaissance Latin gnomus, which first appears in A Book on Nymphs, Sylphs, Pygmies, and Salamanders, and on the Other Spirits by Paracelsus, published posthumously in Nysa in 1566 (and again in the Johannes Huser edition of 1589–1591 from an autograph by Paracelsus).", "title": "History" }, { "paragraph_id": 3, "text": "The term may be an original invention of Paracelsus, possibly deriving the term from Latin gēnomos (itself representing a Greek γη-νομος, approximately \"gē-nomos\", literally \"earth-dweller\"). In this case, the omission of the ē is referred to as a blunder by the Oxford English Dictionary (OED). Paracelsus uses Gnomi as a synonym of Pygmæi and classifies them as earth elementals. He describes them as two spans high, very reluctant to interact with humans and able to move through solid earth as easily as humans move through air.", "title": "History" }, { "paragraph_id": 4, "text": "The chthonic or earth-dwelling spirit has precedents in numerous ancient and medieval mythologies, often guarding mines and precious underground treasures, notably in the Germanic dwarfs and the Greek Chalybes, Telchines or Dactyls. The gnomes of Swiss folklore follow this template, as they are said to have caused the landslide that destroyed the Swiss village of Plurs in 1618 - the villagers had become wealthy from a local gold mine created by the gnomes, who poured liquid gold down into a vein for the benefit of humans, and were corrupted by this newfound prosperity, which greatly offended the gnomes.", "title": "History" }, { "paragraph_id": 5, "text": "The English word is attested from the early 18th century. Gnomes are used in Alexander Pope's \"The Rape of the Lock\". The creatures from this mock-epic are small, celestial creatures which were prudish women in their past lives, and now spend all of eternity looking out for prudish women (in parallel to the guardian angels in Catholic belief). Other uses of the term gnome remain obscure until the early 19th century, when it is taken up by authors of Romanticist collections of fairy tales and becomes mostly synonymous with the older word goblin.", "title": "Cultural references" }, { "paragraph_id": 6, "text": "Pope's stated source, the 1670 French satire Comte de Gabalis by Nicolas-Pierre-Henri de Montfaucon de Villars, the abbot of Villars, describes gnomes as such:", "title": "Cultural references" }, { "paragraph_id": 7, "text": "The Earth is filled almost to the center with Gnomes or Pharyes, a people of small stature, the guardians of treasures, of mines, and of precious stones. They are ingenious, friends of men, and easie (sic) to be commandded (sic). They furnish the children of the Sages with as much money, as they have need of; and never ask any other reward of their services, than the glory of being commanded. The Gnomides or wives of these Gnomes or Pharyes, are little, but very handsom (sic); and their habit marvellously (sic) curious.", "title": "Cultural references" }, { "paragraph_id": 8, "text": "De Villars used the term gnomide to refer to female gnomes (often \"gnomid\" in English translations). Modern fiction instead uses the word \"gnomess\" to refer to female gnomes.", "title": "Cultural references" }, { "paragraph_id": 9, "text": "In 19th-century fiction, the chthonic gnome became a sort of antithesis to the more airy or luminous fairy. Nathaniel Hawthorne in Twice-Told Tales (1837) contrasts the two in \"Small enough to be king of the fairies, and ugly enough to be king of the gnomes\" (cited after OED). Similarly, gnomes are contrasted to elves, as in William Cullen Bryant's Little People of the Snow (1877), which has \"let us have a tale of elves that ride by night, with jingling reins, or gnomes of the mine\" (cited after OED).", "title": "Cultural references" }, { "paragraph_id": 10, "text": "The Russian composer Mussorgsky produced a movement in his work Pictures at an Exhibition, (1874) named \"Gnomus\" (Latin for \"The Gnome\"). It is written to sound as if a gnome is moving about.", "title": "Cultural references" }, { "paragraph_id": 11, "text": "Franz Hartmann in 1895 satirized materialism in an allegorical tale entitled Unter den Gnomen im Untersberg. The English translation appeared in 1896 as Among the Gnomes: An Occult Tale of Adventure in the Untersberg. In this story, the Gnomes are still clearly subterranean creatures, guarding treasures of gold within the Untersberg mountain.", "title": "Cultural references" }, { "paragraph_id": 12, "text": "As a figure of 19th-century fairy tales, the term gnome became largely synonymous with other terms for \"little people\" by the 20th century, such as goblin, brownie, leprechaun and other instances of the household spirit type, losing its strict association with earth or the underground world.", "title": "Cultural references" }, { "paragraph_id": 13, "text": "The 1967 Walt Disney movie The Gnome-Mobile", "title": "Cultural references" }, { "paragraph_id": 14, "text": "The 2011 animated movie Gnomeo & Juliet", "title": "Cultural references" }, { "paragraph_id": 15, "text": "The 2018 animated movie Sherlock Gnomes featured gnomish versions of several classic Sherlock Holmes characters.", "title": "Cultural references" }, { "paragraph_id": 16, "text": "After World War II (with early references, in ironic use, from the late 1930s) the diminutive figurines introduced as lawn ornaments during the 19th century came to be known as garden gnomes. The image of the gnome changed further during the 1960s to 1970s, when the first plastic garden gnomes were manufactured. These gnomes followed the style of the 1937 depiction of the seven dwarves in Snow White and the Seven Dwarfs by Disney. This \"Disneyfied\" image of the gnome was built upon by the illustrated children's book classic Gnomes (1976), in the original Dutch Leven en werken van de Kabouter, by author Wil Huygen and artist Rien Poortvliet, followed in 1981 by The Secret Book of Gnomes. Garden gnomes share a resemblance to the Scandinavian tomte and nisse, and the Swedish term \"tomte\" can be translated as \"gnome\" in English.", "title": "Derivative uses" }, { "paragraph_id": 17, "text": "Several gnome themed entertainment parks exist. Notable ones are:", "title": "Derivative uses" }, { "paragraph_id": 18, "text": "Gnome parades are held annually at Atlanta's Inman Park Festival. Numerous one-off gnome parades have been held, including in Savannah, Georgia (April 2012) and Cleveland, Ohio (May 2011).", "title": "Derivative uses" } ]
A gnome is a mythological creature and diminutive spirit in Renaissance magic and alchemy, introduced by Paracelsus in the 16th century and widely adopted by authors including those of modern fantasy literature. Typically small humanoids who live underground, gnome characteristics are reinterpreted to suit various storytellers and artists. Lawn ornaments crafted as gnomes were introduced during the 19th century, growing in popularity during the 20th century as garden gnomes.
2001-10-07T17:59:29Z
2023-12-29T23:56:07Z
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https://en.wikipedia.org/wiki/Gnome
12,365
Googolplex
A googolplex is the large number 10, or equivalently, 10 or 10. Written out in ordinary decimal notation, it is 1 followed by 10 zeroes; that is, a 1 followed by a googol of zeroes. Its prime factorization is 2 ×5. In 1920, Edward Kasner's nine-year-old nephew, Milton Sirotta, coined the term googol, which is 10, and then proposed the further term googolplex to be "one, followed by writing zeroes until you get tired". Kasner decided to adopt a more formal definition because "different people get tired at different times and it would never do to have Carnera [be] a better mathematician than Dr. Einstein, simply because he had more endurance and could write for longer". It thus became standardized to 10 = 10, due to the right-associativity of exponentiation. A typical book can be printed with 10 zeros (around 400 pages with 50 lines per page and 50 zeros per line). Therefore, it requires 10 such books to print all the zeros of a googolplex (that is, printing a googol zeros). If each book had a mass of 100 grams, all of them would have a total mass of 10 kilograms. In comparison, Earth's mass is 5.972 × 10 kilograms, the mass of the Milky Way galaxy is estimated at 2.5 × 10 kilograms, and the total mass of all the stars in the observable universe is estimated at 2 × 10 kg. To put this in perspective, the mass of all such books required to write out a googolplex would be vastly greater than the masses of the Milky Way and the Andromeda galaxies combined (by a factor of roughly 2.0 × 10), and greater than the mass of the observable universe by a factor of roughly 7 × 10. In pure mathematics, there are several notational methods for representing large numbers by which the magnitude of a googolplex could be represented, such as tetration, hyperoperation, Knuth's up-arrow notation, Steinhaus–Moser notation, or Conway chained arrow notation. In the PBS science program Cosmos: A Personal Voyage, Episode 9: "The Lives of the Stars", astronomer and television personality Carl Sagan estimated that writing a googolplex in full decimal form (i.e., "10,000,000,000...") would be physically impossible, since doing so would require more space than is available in the known universe. Sagan gave an example that if the entire volume of the observable universe is filled with fine dust particles roughly 1.5 micrometers in size (0.0015 millimeters), then the number of different combinations in which the particles could be arranged and numbered would be about one googolplex. Writing the number would ultimately lead to the heat death of the universe: if a person can write two digits per second, then writing a googolplex would take about 1.58×10 years, which is about 1.1×10 times the accepted age of the universe, and each digit written would result in an increase of entropy by the second law of thermodynamics. 10 is a high estimate of the elementary particles existing in the visible universe (not including dark matter), mostly photons and other massless force carriers. The residues (mod n) of a googolplex, starting with mod 1, are: This sequence is the same as the sequence of residues (mod n) of a googol up until the 17th position.
[ { "paragraph_id": 0, "text": "A googolplex is the large number 10, or equivalently, 10 or 10. Written out in ordinary decimal notation, it is 1 followed by 10 zeroes; that is, a 1 followed by a googol of zeroes. Its prime factorization is 2 ×5.", "title": "" }, { "paragraph_id": 1, "text": "In 1920, Edward Kasner's nine-year-old nephew, Milton Sirotta, coined the term googol, which is 10, and then proposed the further term googolplex to be \"one, followed by writing zeroes until you get tired\". Kasner decided to adopt a more formal definition because \"different people get tired at different times and it would never do to have Carnera [be] a better mathematician than Dr. Einstein, simply because he had more endurance and could write for longer\". It thus became standardized to 10 = 10, due to the right-associativity of exponentiation.", "title": "History" }, { "paragraph_id": 2, "text": "A typical book can be printed with 10 zeros (around 400 pages with 50 lines per page and 50 zeros per line). Therefore, it requires 10 such books to print all the zeros of a googolplex (that is, printing a googol zeros). If each book had a mass of 100 grams, all of them would have a total mass of 10 kilograms. In comparison, Earth's mass is 5.972 × 10 kilograms, the mass of the Milky Way galaxy is estimated at 2.5 × 10 kilograms, and the total mass of all the stars in the observable universe is estimated at 2 × 10 kg.", "title": "Size" }, { "paragraph_id": 3, "text": "To put this in perspective, the mass of all such books required to write out a googolplex would be vastly greater than the masses of the Milky Way and the Andromeda galaxies combined (by a factor of roughly 2.0 × 10), and greater than the mass of the observable universe by a factor of roughly 7 × 10.", "title": "Size" }, { "paragraph_id": 4, "text": "In pure mathematics, there are several notational methods for representing large numbers by which the magnitude of a googolplex could be represented, such as tetration, hyperoperation, Knuth's up-arrow notation, Steinhaus–Moser notation, or Conway chained arrow notation.", "title": "Size" }, { "paragraph_id": 5, "text": "In the PBS science program Cosmos: A Personal Voyage, Episode 9: \"The Lives of the Stars\", astronomer and television personality Carl Sagan estimated that writing a googolplex in full decimal form (i.e., \"10,000,000,000...\") would be physically impossible, since doing so would require more space than is available in the known universe. Sagan gave an example that if the entire volume of the observable universe is filled with fine dust particles roughly 1.5 micrometers in size (0.0015 millimeters), then the number of different combinations in which the particles could be arranged and numbered would be about one googolplex.", "title": "Size" }, { "paragraph_id": 6, "text": "Writing the number would ultimately lead to the heat death of the universe: if a person can write two digits per second, then writing a googolplex would take about 1.58×10 years, which is about 1.1×10 times the accepted age of the universe, and each digit written would result in an increase of entropy by the second law of thermodynamics.", "title": "Size" }, { "paragraph_id": 7, "text": "10 is a high estimate of the elementary particles existing in the visible universe (not including dark matter), mostly photons and other massless force carriers.", "title": "Size" }, { "paragraph_id": 8, "text": "The residues (mod n) of a googolplex, starting with mod 1, are:", "title": "Mod n" }, { "paragraph_id": 9, "text": "This sequence is the same as the sequence of residues (mod n) of a googol up until the 17th position.", "title": "Mod n" } ]
A googolplex is the large number 10googol, or equivalently, 1010100 or 1010,000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000,​000,000,000. Written out in ordinary decimal notation, it is 1 followed by 10100 zeroes; that is, a 1 followed by a googol of zeroes. Its prime factorization is 2googol ×5googol.
2001-07-26T19:56:11Z
2023-12-21T00:31:13Z
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https://en.wikipedia.org/wiki/Googolplex
12,366
Graphite
Graphite (/ˈɡræfaɪt/) is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on large scale (300 kton/year, in 1989) for uses in pencils, lubricants, and electrodes. Under high pressures and temperatures it converts to diamond. It is a good (but not excellent) conductor of both heat and electricity. The principal types of natural graphite, each occurring in different types of ore deposits, are Synthetic graphite (or artificial graphite) is a material consisting of graphitic carbon which has been obtained by graphitizing of non-graphitic carbon, by chemical vapor deposition from hydrocarbons at temperatures above 2500 K, by decomposition of thermally unstable carbides or by crystallizing from metal melts supersaturated with carbon. Graphite occurs in metamorphic rocks as a result of the reduction of sedimentary carbon compounds during metamorphism. It also occurs in igneous rocks and in meteorites. Minerals associated with graphite include quartz, calcite, micas and tourmaline. The principal export sources of mined graphite are in order of tonnage: China, Mexico, Canada, Brazil, and Madagascar. In meteorites, graphite occurs with troilite and silicate minerals. Small graphitic crystals in meteoritic iron are called cliftonite. Some microscopic grains have distinctive isotopic compositions, indicating that they were formed before the Solar System. They are one of about 12 known types of minerals that predate the Solar System and have also been detected in molecular clouds. These minerals were formed in the ejecta when supernovae exploded or low to intermediate-sized stars expelled their outer envelopes late in their lives. Graphite may be the second or third oldest mineral in the Universe. Graphite consists of sheets of trigonal planar carbon. The individual layers are called graphene. In each layer, the carbon atoms are arranged in a honeycomb lattice with a bond length of 0.142 nm, and the distance between planes is 0.335 nm. Bonding between layers is relatively weak van der Waals bonds and are often occupied by gases, which allows the graphene-like layers to be easily separated and to glide past each other. Electrical conductivity perpendicular to the layers is consequently about 1000 times lower. The two forms of graphite are called alpha (hexagonal) and beta (rhombohedral). Their properties are very similar. They differ in terms of the stacking of the graphene layers: stacking in alpha graphite is ABA, as opposed to ABC stacking in energetically less stable and less common beta graphite. The alpha form can be converted to the beta form through mechanical treatment and the beta form reverts to the alpha form when it is heated above 1300 °C. The equilibrium pressure and temperature conditions for a transition between graphite and diamond is well established theoretically and experimentally. The pressure changes linearly between 1.7 GPa at 0 K and 12 GPa at 5000 K (the diamond/graphite/liquid triple point). However, the phases have a wide region about this line where they can coexist. At normal temperature and pressure, 20 °C (293 K) and 1 standard atmosphere (0.10 MPa), the stable phase of carbon is graphite, but diamond is metastable and its rate of conversion to graphite is negligible. However, at temperatures above about 4500 K, diamond rapidly converts to graphite. Rapid conversion of graphite to diamond requires pressures well above the equilibrium line: at 2000 K, a pressure of 35 GPa is needed. The acoustic and thermal properties of graphite are highly anisotropic, since phonons propagate quickly along the tightly bound planes, but are slower to travel from one plane to another. Graphite's high thermal stability and electrical and thermal conductivity facilitate its widespread use as electrodes and refractories in high temperature material processing applications. However, in oxygen-containing atmospheres graphite readily oxidizes to form carbon dioxide at temperatures of 700 °C and above. Graphite is an electrical conductor, hence useful in such applications as arc lamp electrodes. It can conduct electricity due to the vast electron delocalization within the carbon layers (a phenomenon called aromaticity). These valence electrons are free to move, so are able to conduct electricity. However, the electricity is primarily conducted within the plane of the layers. The conductive properties of powdered graphite allow its use as pressure sensor in carbon microphones. Graphite and graphite powder are valued in industrial applications for their self-lubricating and dry lubricating properties. There is a common belief that graphite's lubricating properties are solely due to the loose interlamellar coupling between sheets in the structure. However, it has been shown that in a vacuum environment (such as in technologies for use in space), graphite degrades as a lubricant, due to the hypoxic conditions. This observation led to the hypothesis that the lubrication is due to the presence of fluids between the layers, such as air and water, which are naturally adsorbed from the environment. This hypothesis has been refuted by studies showing that air and water are not absorbed. Recent studies suggest that an effect called superlubricity can also account for graphite's lubricating properties. The use of graphite is limited by its tendency to facilitate pitting corrosion in some stainless steel, and to promote galvanic corrosion between dissimilar metals (due to its electrical conductivity). It is also corrosive to aluminium in the presence of moisture. For this reason, the US Air Force banned its use as a lubricant in aluminium aircraft, and discouraged its use in aluminium-containing automatic weapons. Even graphite pencil marks on aluminium parts may facilitate corrosion. Another high-temperature lubricant, hexagonal boron nitride, has the same molecular structure as graphite. It is sometimes called white graphite, due to its similar properties. When a large number of crystallographic defects bind these planes together, graphite loses its lubrication properties and becomes what is known as pyrolytic graphite. It is also highly anisotropic, and diamagnetic, thus it will float in mid-air above a strong magnet. If it is made in a fluidized bed at 1000–1300 °C then it is isotropic turbostratic, and is used in blood-contacting devices like mechanical heart valves and is called pyrolytic carbon, and is not diamagnetic. Pyrolytic graphite and pyrolytic carbon are often confused but are very different materials. Natural and crystalline graphites are not often used in pure form as structural materials, due to their shear-planes, brittleness, and inconsistent mechanical properties. In the 4th millennium BCE, during the Neolithic Age in southeastern Europe, the Marița culture used graphite in a ceramic paint for decorating pottery. Sometime before 1565 (some sources say as early as 1500), an enormous deposit of graphite was discovered on the approach to Grey Knotts from the hamlet of Seathwaite in Borrowdale parish, Cumbria, England, which the locals found useful for marking sheep. During the reign of Elizabeth I (1558–1603), Borrowdale graphite was used as a refractory material to line molds for cannonballs, resulting in rounder, smoother balls that could be fired farther, contributing to the strength of the English navy. This particular deposit of graphite was extremely pure and soft, and could easily be cut into sticks. Because of its military importance, this unique mine and its production were strictly controlled by the Crown. During the 19th century, graphite's uses greatly expanded to include stove polish, lubricants, paints, crucibles, foundry facings, and pencils, a major factor in the expansion of educational tools during the first great rise of education for the masses. The British Empire controlled most of the world's production (especially from Ceylon), but production from Austrian, German, and American deposits expanded by mid-century. For example, the Dixon Crucible Company of Jersey City, New Jersey, founded by Joseph Dixon and partner Orestes Cleveland in 1845, opened mines in the Lake Ticonderoga district of New York, built a processing plant there, and a factory to manufacture pencils, crucibles and other products in New Jersey, described in the Engineering & Mining Journal 21 December 1878. The Dixon pencil is still in production. The beginnings of the revolutionary froth flotation process are associated with graphite mining. Included in the E&MJ article on the Dixon Crucible Company is a sketch of the "floating tanks" used in the age-old process of extracting graphite. Because graphite is so light, the mix of graphite and waste was sent through a final series of water tanks where a cleaner graphite "floated" off, which left waste to drop out. In an 1877 patent, the two brothers Bessel (Adolph and August) of Dresden, Germany, took this "floating" process a step further and added a small amount of oil to the tanks and boiled the mix – an agitation or frothing step – to collect the graphite, the first steps toward the future flotation process. Adolph Bessel received the Wohler Medal for the patented process that upgraded the recovery of graphite to 90% from the German deposit. In 1977, the German Society of Mining Engineers and Metallurgists organized a special symposium dedicated to their discovery and, thus, the 100th anniversary of flotation. In the United States, in 1885, Hezekiah Bradford of Philadelphia patented a similar process, but it is uncertain if his process was used successfully in the nearby graphite deposits of Chester County, Pennsylvania, a major producer by the 1890s. The Bessel process was limited in use, primarily because of the abundant cleaner deposits found around the globe, which needed not much more than hand-sorting to gather the pure graphite. The state of the art, c. 1900, is described in the Canadian Department of Mines report on graphite mines and mining when Canadian deposits began to become important producers of graphite. Historically, graphite was called black lead or plumbago. Plumbago was commonly used in its massive mineral form. Both of these names arise from confusion with the similar-appearing lead ores, particularly galena. The Latin word for lead, plumbum, gave its name to the English term for this grey metallic-sheened mineral and even to the leadworts or plumbagos, plants with flowers that resemble this colour. The term black lead usually refers to a powdered or processed graphite, matte black in color. Abraham Gottlob Werner coined the name graphite ("writing stone") in 1789. He attempted to clear up the confusion between molybdena, plumbago and black lead after Carl Wilhelm Scheele in 1778 proved that these were at least three different minerals. Scheele's analysis showed that the chemical compounds molybdenum sulfide (molybdenite), lead(II) sulfide (galena) and graphite were three different soft black minerals. Natural graphite is mostly used for refractories, batteries, steelmaking, expanded graphite, brake linings, foundry facings, and lubricants. The use of graphite as a refractory (heat-resistant) material began before 1900 with graphite crucibles used to hold molten metal; this is now a minor part of refractories. In the mid-1980s, the carbon-magnesite brick became important, and a bit later the alumina-graphite shape. As of 2017 the order of importance is: alumina-graphite shapes, carbon-magnesite brick, Monolithics (gunning and ramming mixes), and then crucibles. Crucibles began using very large flake graphite, and carbon-magnesite bricks requiring not quite so large flake graphite; for these and others there is now much more flexibility in the size of flake required, and amorphous graphite is no longer restricted to low-end refractories. Alumina-graphite shapes are used as continuous casting ware, such as nozzles and troughs, to convey the molten steel from ladle to mold, and carbon magnesite bricks line steel converters and electric-arc furnaces to withstand extreme temperatures. Graphite blocks are also used in parts of blast furnace linings where the high thermal conductivity of the graphite is critical to ensuring adequate cooling of the bottom and hearth of the furnace. High-purity monolithics are often used as a continuous furnace lining instead of carbon-magnesite bricks. The US and European refractories industry had a crisis in 2000–2003, with an indifferent market for steel and a declining refractory consumption per tonne of steel underlying firm buyouts and many plant closures. Many of the plant closures resulted from the acquisition of Harbison-Walker Refractories by RHI AG and some plants had their equipment auctioned off. Since much of the lost capacity was for carbon-magnesite brick, graphite consumption within the refractories area moved towards alumina-graphite shapes and Monolithics, and away from the brick. The major source of carbon-magnesite brick is now China. Almost all of the above refractories are used to make steel and account for 75% of refractory consumption; the rest is used by a variety of industries, such as cement. According to the USGS, US natural graphite consumption in refractories comprised 12,500 tonnes in 2010. The use of graphite in batteries has increased since the 1970s. Natural and synthetic graphite are used as an anode material to construct electrodes in major battery technologies. The demand for batteries, primarily nickel–metal hydride and lithium-ion batteries, caused a growth in demand for graphite in the late 1980s and early 1990s – a growth driven by portable electronics, such as portable CD players and power tools. Laptops, mobile phones, tablets, and smartphone products have increased the demand for batteries. Electric-vehicle batteries are anticipated to increase graphite demand. As an example, a lithium-ion battery in a fully electric Nissan Leaf contains nearly 40 kg of graphite. Radioactive graphite from old nuclear reactors is being researched as fuel. Nuclear diamond battery has the potential for long duration energy supply for electronics and the internet of things. Graphite is 'predominant anode material used today in lithium-ion batteries' EV batteries contain four basic components: anode, cathode, electrolyte, and separator. While there is much focus on the cathode materials – lithium, nickel, cobalt, manganese, etc. – the predominant anode material used in virtually all EV batteries is graphite. Natural graphite in steelmaking mostly goes into raising the carbon content in molten steel; it can also serve to lubricate the dies used to extrude hot steel. Carbon additives face competitive pricing from alternatives such as synthetic graphite powder, petroleum coke, and other forms of carbon. A carbon raiser is added to increase the carbon content of the steel to a specified level. An estimate based on USGS's graphite consumption statistics indicates that steelmakers in the US used 10,500 tonnes in this fashion in 2005. Natural amorphous and fine flake graphite are used in brake linings or brake shoes for heavier (nonautomotive) vehicles, and became important with the need to substitute for asbestos. This use has been important for quite some time, but nonasbestos organic (NAO) compositions are beginning to reduce graphite's market share. A brake-lining industry shake-out with some plant closures has not been beneficial, nor has an indifferent automotive market. According to the USGS, US natural graphite consumption in brake linings was 6,510 tonnes in 2005. A foundry-facing mold wash is a water-based paint of amorphous or fine flake graphite. Painting the inside of a mold with it and letting it dry leaves a fine graphite coat that will ease the separation of the object cast after the hot metal has cooled. Graphite lubricants are specialty items for use at very high or very low temperatures, as forging die lubricant, an antiseize agent, a gear lubricant for mining machinery, and to lubricate locks. Having low-grit graphite, or even better, no-grit graphite (ultra high purity), is highly desirable. It can be used as a dry powder, in water or oil, or as colloidal graphite (a permanent suspension in a liquid). An estimate based on USGS graphite consumption statistics indicates that 2,200 tonnes were used in this fashion in 2005. Metal can also be impregnated into graphite to create a self-lubricating alloy for application in extreme conditions, such as bearings for machines exposed to high or low temperatures. The ability to leave marks on paper and other objects gave graphite its name, given in 1789 by German mineralogist Abraham Gottlob Werner. It stems from γράφειν ("graphein"), meaning to write or draw in Ancient Greek. From the 16th century, all pencils were made with leads of English natural graphite, but modern pencil lead is most commonly a mix of powdered graphite and clay; it was invented by Nicolas-Jacques Conté in 1795. It is chemically unrelated to the metal lead, whose ores had a similar appearance, hence the continuation of the name. Plumbago is another older term for natural graphite used for drawing, typically as a lump of the mineral without a wood casing. The term plumbago drawing is normally restricted to 17th and 18th-century works, mostly portraits. Today, pencils are still a small but significant market for natural graphite. Around 7% of the 1.1 million tonnes produced in 2011 was used to make pencils. Low-quality amorphous graphite is used and sourced mainly from China. In art, graphite is typically used to create detailed and precise drawings, as it allows for a wide range of values (light to dark) to be achieved. It can also be used to create softer, more subtle lines and shading. Graphite is popular among artists because it is easy to control, easy to erase, and produces a clean, professional look. It is also relatively inexpensive and widely available. Many artists use graphite in conjunction with other media, such as charcoal or ink, to create a range of effects and textures in their work. Graphite is probably the most used lubricant in pinewood derbies. Natural graphite has found uses in zinc-carbon batteries, electric motor brushes, and various specialized applications. Graphite of various hardness or softness results in different qualities and tones when used as an artistic medium. Railroads would often mix powdered graphite with waste oil or linseed oil to create a heat-resistant protective coating for the exposed portions of a steam locomotive's boiler, such as the smokebox or lower part of the firebox. The Scope soldering iron uses a graphite tip as its heating element. Expanded graphite is made by immersing natural flake graphite in a bath of chromic acid, then concentrated sulfuric acid, which forces the crystal lattice planes apart, thus expanding the graphite. The expanded graphite can be used to make graphite foil or used directly as a "hot top" compound to insulate molten metal in a ladle or red-hot steel ingots and decrease heat loss, or as firestops fitted around a fire door or in sheet metal collars surrounding plastic pipe (during a fire, the graphite expands and chars to resist fire penetration and spread), or to make high-performance gasket material for high-temperature use. After being made into graphite foil, the foil is machined and assembled into the bipolar plates in fuel cells. The foil is made into heat sinks for laptop computers which keeps them cool while saving weight, and is made into a foil laminate that can be used in valve packings or made into gaskets. Old-style packings are now a minor member of this grouping: fine flake graphite in oils or greases for uses requiring heat resistance. A GAN estimate of current US natural graphite consumption in this end-use is 7,500 tonnes. Graphite forms intercalation compounds with some metals and small molecules. In these compounds, the host molecule or atom gets "sandwiched" between the graphite layers, resulting in a type of compound with variable stoichiometry. A prominent example of an intercalation compound is potassium graphite, denoted by the formula KC8. Some graphite intercalation compounds are superconductors. The highest transition temperature (by June 2009) Tc = 11.5 K is achieved in CaC6, and it further increases under applied pressure (15.1 K at 8 GPa). Graphite's ability to intercalate lithium ions without significant damage from swelling is what makes it the dominant anode material in lithium-ion batteries. In 1893, Charles Street of Le Carbone discovered a process for making artificial graphite. In the mid-1890s, Edward Goodrich Acheson (1856–1931) accidentally invented another way to produce synthetic graphite after synthesizing carborundum (also called silicon carbide). He discovered that overheating carborundum, as opposed to pure carbon, produced almost pure graphite. While studying the effects of high temperature on carborundum, he had found that silicon vaporizes at about 4,150 °C (7,500 °F), leaving the carbon behind in graphitic carbon. This graphite became valuable as a lubricant. Acheson's technique for producing silicon carbide and graphite is named the Acheson process. In 1896, Acheson received a patent for his method of synthesizing graphite, and in 1897 started commercial production. The Acheson Graphite Co. was formed in 1899. Synthetic graphite can also be prepared from polyimide and then commercialized. Highly oriented pyrolytic graphite (HOPG) is the highest-quality synthetic form of graphite. It is used in scientific research, in particular, as a length standard for the calibration of scanning probe microscopes. Graphite electrodes carry the electricity that melts scrap iron and steel, and sometimes direct-reduced iron (DRI), in electric arc furnaces, which are the vast majority of steel furnaces. They are made from petroleum coke after it is mixed with coal tar pitch. They are extruded and shaped, then baked to carbonize the binder (pitch). This is finally graphitized by heating it to temperatures approaching 3,000 °C (5,430 °F), at which the carbon atoms arrange into graphite. They can vary in size up to 3.5 m (11 ft) long and 75 cm (30 in) in diameter. An increasing proportion of global steel is made using electric arc furnaces, and the electric arc furnace itself is becoming more efficient, making more steel per tonne of electrode. An estimate based on USGS data indicates that graphite electrode consumption was 197,000 t (217,000 short tons) in 2005. Electrolytic aluminium smelting also uses graphitic carbon electrodes. On a much smaller scale, synthetic graphite electrodes are used in electrical discharge machining (EDM), commonly to make injection molds for plastics. The powder is made by heating powdered petroleum coke above the temperature of graphitization, sometimes with minor modifications. The graphite scrap comes from pieces of unusable electrode material (in the manufacturing stage or after use) and lathe turnings, usually after crushing and sizing. Most synthetic graphite powder goes to carbon raising in steel (competing with natural graphite), with some used in batteries and brake linings. According to the United States Geographical Survey, US synthetic graphite powder and scrap production were 95,000 t (93,000 long tons; 105,000 short tons) in 2001 (latest data). Special grades of synthetic graphite, such as Gilsocarbon, also find use as a matrix and neutron moderator within nuclear reactors. Its low neutron cross-section also recommends it for use in proposed fusion reactors. Care must be taken that reactor-grade graphite is free of neutron absorbing materials such as boron, widely used as the seed electrode in commercial graphite deposition systems – this caused the failure of the Germans' World War II graphite-based nuclear reactors. Since they could not isolate the difficulty they were forced to use far more expensive heavy water moderators. Graphite used for nuclear reactors is often referred to as nuclear graphite. Herbert G. McPherson, a Berkeley trained physicist at National Carbon, a division of Union Carbide, was key in confirming a conjecture of Leo Szilard that boron impurities even in "pure" graphite were responsible for a neutron absorption cross-section in graphite that compromised U-235 chain reactions. McPherson was aware of the presence of impurities in graphite because, with the use of Technicolor in cinematography, the spectra of graphite electrode arcs used in movie projectors required impurities to enhance emission of light in the red region to display warmer skin tones on the screen. Thus, had it not been for color movies, chances are that the first sustained natural U chain reaction would have required a heavy water moderated reactor. Graphite (carbon) fiber and carbon nanotubes are also used in carbon fiber-reinforced plastics, and in heat-resistant composites such as reinforced carbon-carbon (RCC). Commercial structures made from carbon fiber graphite composites include fishing rods, golf club shafts, bicycle frames, sports car body panels, the fuselage of the Boeing 787 Dreamliner and pool cue sticks and have been successfully employed in reinforced concrete. The mechanical properties of carbon fiber graphite-reinforced plastic composites and grey cast iron are strongly influenced by the role of graphite in these materials. In this context, the term "(100%) graphite" is often loosely used to refer to a pure mixture of carbon reinforcement and resin, while the term "composite" is used for composite materials with additional ingredients. Modern smokeless powder is coated in graphite to prevent the buildup of static charge. Graphite has been used in at least three radar absorbent materials. It was mixed with rubber in Sumpf and Schornsteinfeger, which were used on U-boat snorkels to reduce their radar cross section. It was also used in tiles on early F-117 Nighthawk stealth strike fighters. Graphite composites are used as absorber for high-energy particles, for example in the Large Hadron Collider beam dump. Graphite rods when filed into shape are used as a tool in glassworking to manipulate hot molten glass. Graphite is mined by both open pit and underground methods. Graphite usually needs beneficiation. This may be carried out by hand-picking the pieces of gangue (rock) and hand-screening the product or by crushing the rock and floating out the graphite. Beneficiation by flotation encounters the difficulty that graphite is very soft and "marks" (coats) the particles of gangue. This makes the "marked" gangue particles float off with the graphite, yielding impure concentrate. There are two ways of obtaining a commercial concentrate or product: repeated regrinding and floating (up to seven times) to purify the concentrate, or by acid leaching (dissolving) the gangue with hydrofluoric acid (for a silicate gangue) or hydrochloric acid (for a carbonate gangue). In milling, the incoming graphite products and concentrates can be ground before being classified (sized or screened), with the coarser flake size fractions (below 8 mesh, 8–20 mesh, 20–50 mesh) carefully preserved, and then the carbon contents are determined. Some standard blends can be prepared from the different fractions, each with a certain flake size distribution and carbon content. Custom blends can also be made for individual customers who want a certain flake size distribution and carbon content. If flake size is unimportant, the concentrate can be ground more freely. Typical end products include a fine powder for use as a slurry in oil drilling and coatings for foundry molds, carbon raiser in the steel industry (Synthetic graphite powder and powdered petroleum coke can also be used as carbon raiser). Environmental impacts from graphite mills consist of air pollution including fine particulate exposure of workers and also soil contamination from powder spillages leading to heavy metal contamination of soil. According to the United States Geological Survey (USGS), world production of natural graphite in 2016 was 1,200,000 tonnes, of which the following major exporters are: China (780,000 t), India (170,000 t), Brazil (80,000 t), Turkey (32,000 t) and North Korea (6,000 t). Graphite is not currently mined in the United States, but there are many historical mine sites including ones in Alabama, Montana, and in the Adirondacks of NY. Westwater Resources is in the development stages of creating a pilot plant for their Coosa Graphite Mine near Sylacauga, Alabama. U.S. production of synthetic graphite in 2010 was 134,000 t valued at $1.07 billion. Potential health effects include: The Occupational Safety and Health Administration (OSHA) has set the legal limit (permissible exposure limit) for graphite exposure in the workplace as a time weighted average (TWA) of 15 million particles per cubic foot (1.5 mg/m) over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of TWA 2.5 mg/m respirable dust over an 8-hour workday. At levels of 1250 mg/m, graphite is immediately dangerous to life and health. The most common way of recycling graphite occurs when synthetic graphite electrodes are either manufactured and pieces are cut off or lathe turnings are discarded for reuse, or the electrode (or other materials) are used all the way down to the electrode holder. A new electrode replaces the old one, but a sizeable piece of the old electrode remains. This is crushed and sized, and the resulting graphite powder is mostly used to raise the carbon content of molten steel. Graphite-containing refractories are sometimes also recycled, but often are not due to their low graphite content: the largest-volume items, such as carbon-magnesite bricks that contain only 15–25% graphite, usually contain too little graphite to be worthwhile to recycle. However, some recycled carbon–magnesite brick is used as the basis for furnace-repair materials, and also crushed carbon–magnesite brick is used in slag conditioners. While crucibles have a high graphite content, the volume of crucibles used and then recycled is very small. A high-quality flake graphite product that closely resembles natural flake graphite can be made from steelmaking kish. Kish is a large-volume near-molten waste skimmed from the molten iron feed to a basic oxygen furnace and consists of a mix of graphite (precipitated out of the supersaturated iron), lime-rich slag, and some iron. The iron is recycled on-site, leaving a mixture of graphite and slag. The best recovery process uses hydraulic classification (which utilizes a flow of water to separate minerals by specific gravity: graphite is light and settles nearly last) to get a 70% graphite rough concentrate. Leaching this concentrate with hydrochloric acid gives a 95% graphite product with a flake size ranging from 10 mesh (2 mm) down. Globally, over 60,000 patent families in graphite technologies were filed from 2012 to 2021. Patents were filed by applicants from over 60 countries and regions. However, graphite-related patent families originated predominantly from just a few countries. China was the top contributor with more than 47,000 patent families, accounting for four in every five graphite patent families filed worldwide in the last decade. Among other leading countries were Japan, the Republic of Korea, the United States and the Russian Federation. Together, these top five countries of applicant origin accounted for 95 percent of global patenting output related to graphite. Among the different graphite sources, flake graphite has the highest number of patent families, with more than 5,600 filed worldwide from 2012 to 2021. Supported by active research from its commercial entities and research institutions, China is the country most actively exploiting flake graphite and has contributed to 85 percent of global patent filings in this area. At the same time, innovations exploring new synthesis methods and uses for artificial graphite are gaining interest worldwide, as countries seek to exploit the superior material qualities associated with this man-made substance and reduce reliance on the natural material. Patenting activity is strongly led by commercial entities, particularly world-renowned battery manufacturers and anode material suppliers, with patenting interest focused on battery anode applications. The exfoliation process for bulk graphite, which involves separating the carbon layers within graphite, has been extensively studied between 2012-2021. Specifically, ultrasonic and thermal exfoliation have been the two most popular approaches worldwide, with 4,267 and 2,579 patent families, respectively, significantly more than for either the chemical or electrochemical alternatives. Global patenting activity relating to ultrasonic exfoliation has decreased over the years, indicating that this low-cost technique has become well established. Thermal exfoliation is a more recent process. Compared to ultrasonic exfoliation, this fast and solvent-free thermal approach has attracted greater commercial interest. As the most widespread anode material for lithium-ion batteries, graphite has drawn significant attention worldwide for use in battery applications. With over 8,000 patent families filed from 2012 to 2021, battery applications were a key driver of global graphite-related inventions. Innovations in this area are led by battery manufacturers or anode suppliers who have amassed sizable patent portfolios focused strongly on battery performance improvements based on graphite anode innovation. Besides industry players, academia and research institutions – Chinese universities, in particular – have been an essential source of innovation in graphite anode technologies. Graphite for polymer applications was an innovation hot topic from 2012 to 2021, with over 8,000 patent families recorded worldwide. However, in recent years, in the top countries of applicant origin in this area, including China, Japan and the United States of America (US), patent filings have decreased. Graphite for manufacturing ceramics represents another area of intensive research, with over 6,000 patent families registered in the last decade alone. Specifically, graphite for refractory accounted for over one-third of ceramics-related graphite patent families in China and about one-fifth in the rest of the world. Other important graphite applications include high-value ceramic materials such as carbides for specific industries, ranging from electrical and electronics, aerospace and precision engineering to military and nuclear applications. Carbon brushes represent a long-explored graphite application area. There have been few inventions in this area over the last decade, with less than 300 patent families filed from 2012 to 2021, very significantly less than between 1992-2011. Biomedical, sensor, and conductive ink are emerging application areas for graphite that have attracted interest from both academia and commercial entities, including renowned universities and multinational corporations. Typically for an emerging technology area, related patent families were filed by various organizations without any players dominating. As a result, the top applicants have a small number of inventions, unlike in well-explored areas, where they will have strong technology accumulation and large patent portfolios. The innovation focus of these three emerging areas is highly scattered and can be diverse, even for a single applicant. However, recent inventions are seen to leverage the development of graphite nanomaterials, particularly graphite nanocomposites and graphene. This article incorporates text from a free content work. Licensed under CC-BY. Text taken from Patent Landscape Report - Graphite and its applications, WIPO.
[ { "paragraph_id": 0, "text": "Graphite (/ˈɡræfaɪt/) is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on large scale (300 kton/year, in 1989) for uses in pencils, lubricants, and electrodes. Under high pressures and temperatures it converts to diamond. It is a good (but not excellent) conductor of both heat and electricity.", "title": "" }, { "paragraph_id": 1, "text": "The principal types of natural graphite, each occurring in different types of ore deposits, are", "title": "Types and varieties" }, { "paragraph_id": 2, "text": "Synthetic graphite (or artificial graphite) is a material consisting of graphitic carbon which has been obtained by graphitizing of non-graphitic carbon, by chemical vapor deposition from hydrocarbons at temperatures above 2500 K, by decomposition of thermally unstable carbides or by crystallizing from metal melts supersaturated with carbon.", "title": "Types and varieties" }, { "paragraph_id": 3, "text": "Graphite occurs in metamorphic rocks as a result of the reduction of sedimentary carbon compounds during metamorphism. It also occurs in igneous rocks and in meteorites. Minerals associated with graphite include quartz, calcite, micas and tourmaline. The principal export sources of mined graphite are in order of tonnage: China, Mexico, Canada, Brazil, and Madagascar.", "title": "Natural graphite" }, { "paragraph_id": 4, "text": "In meteorites, graphite occurs with troilite and silicate minerals. Small graphitic crystals in meteoritic iron are called cliftonite. Some microscopic grains have distinctive isotopic compositions, indicating that they were formed before the Solar System. They are one of about 12 known types of minerals that predate the Solar System and have also been detected in molecular clouds. These minerals were formed in the ejecta when supernovae exploded or low to intermediate-sized stars expelled their outer envelopes late in their lives. Graphite may be the second or third oldest mineral in the Universe.", "title": "Natural graphite" }, { "paragraph_id": 5, "text": "Graphite consists of sheets of trigonal planar carbon. The individual layers are called graphene. In each layer, the carbon atoms are arranged in a honeycomb lattice with a bond length of 0.142 nm, and the distance between planes is 0.335 nm. Bonding between layers is relatively weak van der Waals bonds and are often occupied by gases, which allows the graphene-like layers to be easily separated and to glide past each other.", "title": "Natural graphite" }, { "paragraph_id": 6, "text": "Electrical conductivity perpendicular to the layers is consequently about 1000 times lower.", "title": "Natural graphite" }, { "paragraph_id": 7, "text": "The two forms of graphite are called alpha (hexagonal) and beta (rhombohedral). Their properties are very similar. They differ in terms of the stacking of the graphene layers: stacking in alpha graphite is ABA, as opposed to ABC stacking in energetically less stable and less common beta graphite. The alpha form can be converted to the beta form through mechanical treatment and the beta form reverts to the alpha form when it is heated above 1300 °C.", "title": "Natural graphite" }, { "paragraph_id": 8, "text": "The equilibrium pressure and temperature conditions for a transition between graphite and diamond is well established theoretically and experimentally. The pressure changes linearly between 1.7 GPa at 0 K and 12 GPa at 5000 K (the diamond/graphite/liquid triple point). However, the phases have a wide region about this line where they can coexist. At normal temperature and pressure, 20 °C (293 K) and 1 standard atmosphere (0.10 MPa), the stable phase of carbon is graphite, but diamond is metastable and its rate of conversion to graphite is negligible. However, at temperatures above about 4500 K, diamond rapidly converts to graphite. Rapid conversion of graphite to diamond requires pressures well above the equilibrium line: at 2000 K, a pressure of 35 GPa is needed.", "title": "Natural graphite" }, { "paragraph_id": 9, "text": "The acoustic and thermal properties of graphite are highly anisotropic, since phonons propagate quickly along the tightly bound planes, but are slower to travel from one plane to another. Graphite's high thermal stability and electrical and thermal conductivity facilitate its widespread use as electrodes and refractories in high temperature material processing applications. However, in oxygen-containing atmospheres graphite readily oxidizes to form carbon dioxide at temperatures of 700 °C and above.", "title": "Natural graphite" }, { "paragraph_id": 10, "text": "Graphite is an electrical conductor, hence useful in such applications as arc lamp electrodes. It can conduct electricity due to the vast electron delocalization within the carbon layers (a phenomenon called aromaticity). These valence electrons are free to move, so are able to conduct electricity. However, the electricity is primarily conducted within the plane of the layers. The conductive properties of powdered graphite allow its use as pressure sensor in carbon microphones.", "title": "Natural graphite" }, { "paragraph_id": 11, "text": "Graphite and graphite powder are valued in industrial applications for their self-lubricating and dry lubricating properties. There is a common belief that graphite's lubricating properties are solely due to the loose interlamellar coupling between sheets in the structure. However, it has been shown that in a vacuum environment (such as in technologies for use in space), graphite degrades as a lubricant, due to the hypoxic conditions. This observation led to the hypothesis that the lubrication is due to the presence of fluids between the layers, such as air and water, which are naturally adsorbed from the environment. This hypothesis has been refuted by studies showing that air and water are not absorbed. Recent studies suggest that an effect called superlubricity can also account for graphite's lubricating properties. The use of graphite is limited by its tendency to facilitate pitting corrosion in some stainless steel, and to promote galvanic corrosion between dissimilar metals (due to its electrical conductivity). It is also corrosive to aluminium in the presence of moisture. For this reason, the US Air Force banned its use as a lubricant in aluminium aircraft, and discouraged its use in aluminium-containing automatic weapons. Even graphite pencil marks on aluminium parts may facilitate corrosion. Another high-temperature lubricant, hexagonal boron nitride, has the same molecular structure as graphite. It is sometimes called white graphite, due to its similar properties.", "title": "Natural graphite" }, { "paragraph_id": 12, "text": "When a large number of crystallographic defects bind these planes together, graphite loses its lubrication properties and becomes what is known as pyrolytic graphite. It is also highly anisotropic, and diamagnetic, thus it will float in mid-air above a strong magnet. If it is made in a fluidized bed at 1000–1300 °C then it is isotropic turbostratic, and is used in blood-contacting devices like mechanical heart valves and is called pyrolytic carbon, and is not diamagnetic. Pyrolytic graphite and pyrolytic carbon are often confused but are very different materials.", "title": "Natural graphite" }, { "paragraph_id": 13, "text": "Natural and crystalline graphites are not often used in pure form as structural materials, due to their shear-planes, brittleness, and inconsistent mechanical properties.", "title": "Natural graphite" }, { "paragraph_id": 14, "text": "In the 4th millennium BCE, during the Neolithic Age in southeastern Europe, the Marița culture used graphite in a ceramic paint for decorating pottery.", "title": "History of natural graphite use" }, { "paragraph_id": 15, "text": "Sometime before 1565 (some sources say as early as 1500), an enormous deposit of graphite was discovered on the approach to Grey Knotts from the hamlet of Seathwaite in Borrowdale parish, Cumbria, England, which the locals found useful for marking sheep. During the reign of Elizabeth I (1558–1603), Borrowdale graphite was used as a refractory material to line molds for cannonballs, resulting in rounder, smoother balls that could be fired farther, contributing to the strength of the English navy. This particular deposit of graphite was extremely pure and soft, and could easily be cut into sticks. Because of its military importance, this unique mine and its production were strictly controlled by the Crown.", "title": "History of natural graphite use" }, { "paragraph_id": 16, "text": "During the 19th century, graphite's uses greatly expanded to include stove polish, lubricants, paints, crucibles, foundry facings, and pencils, a major factor in the expansion of educational tools during the first great rise of education for the masses. The British Empire controlled most of the world's production (especially from Ceylon), but production from Austrian, German, and American deposits expanded by mid-century. For example, the Dixon Crucible Company of Jersey City, New Jersey, founded by Joseph Dixon and partner Orestes Cleveland in 1845, opened mines in the Lake Ticonderoga district of New York, built a processing plant there, and a factory to manufacture pencils, crucibles and other products in New Jersey, described in the Engineering & Mining Journal 21 December 1878. The Dixon pencil is still in production.", "title": "History of natural graphite use" }, { "paragraph_id": 17, "text": "The beginnings of the revolutionary froth flotation process are associated with graphite mining. Included in the E&MJ article on the Dixon Crucible Company is a sketch of the \"floating tanks\" used in the age-old process of extracting graphite. Because graphite is so light, the mix of graphite and waste was sent through a final series of water tanks where a cleaner graphite \"floated\" off, which left waste to drop out. In an 1877 patent, the two brothers Bessel (Adolph and August) of Dresden, Germany, took this \"floating\" process a step further and added a small amount of oil to the tanks and boiled the mix – an agitation or frothing step – to collect the graphite, the first steps toward the future flotation process. Adolph Bessel received the Wohler Medal for the patented process that upgraded the recovery of graphite to 90% from the German deposit. In 1977, the German Society of Mining Engineers and Metallurgists organized a special symposium dedicated to their discovery and, thus, the 100th anniversary of flotation.", "title": "History of natural graphite use" }, { "paragraph_id": 18, "text": "In the United States, in 1885, Hezekiah Bradford of Philadelphia patented a similar process, but it is uncertain if his process was used successfully in the nearby graphite deposits of Chester County, Pennsylvania, a major producer by the 1890s. The Bessel process was limited in use, primarily because of the abundant cleaner deposits found around the globe, which needed not much more than hand-sorting to gather the pure graphite. The state of the art, c. 1900, is described in the Canadian Department of Mines report on graphite mines and mining when Canadian deposits began to become important producers of graphite.", "title": "History of natural graphite use" }, { "paragraph_id": 19, "text": "Historically, graphite was called black lead or plumbago. Plumbago was commonly used in its massive mineral form. Both of these names arise from confusion with the similar-appearing lead ores, particularly galena. The Latin word for lead, plumbum, gave its name to the English term for this grey metallic-sheened mineral and even to the leadworts or plumbagos, plants with flowers that resemble this colour.", "title": "History of natural graphite use" }, { "paragraph_id": 20, "text": "The term black lead usually refers to a powdered or processed graphite, matte black in color.", "title": "History of natural graphite use" }, { "paragraph_id": 21, "text": "Abraham Gottlob Werner coined the name graphite (\"writing stone\") in 1789. He attempted to clear up the confusion between molybdena, plumbago and black lead after Carl Wilhelm Scheele in 1778 proved that these were at least three different minerals. Scheele's analysis showed that the chemical compounds molybdenum sulfide (molybdenite), lead(II) sulfide (galena) and graphite were three different soft black minerals.", "title": "History of natural graphite use" }, { "paragraph_id": 22, "text": "Natural graphite is mostly used for refractories, batteries, steelmaking, expanded graphite, brake linings, foundry facings, and lubricants.", "title": "Uses of natural graphite" }, { "paragraph_id": 23, "text": "The use of graphite as a refractory (heat-resistant) material began before 1900 with graphite crucibles used to hold molten metal; this is now a minor part of refractories. In the mid-1980s, the carbon-magnesite brick became important, and a bit later the alumina-graphite shape. As of 2017 the order of importance is: alumina-graphite shapes, carbon-magnesite brick, Monolithics (gunning and ramming mixes), and then crucibles.", "title": "Uses of natural graphite" }, { "paragraph_id": 24, "text": "Crucibles began using very large flake graphite, and carbon-magnesite bricks requiring not quite so large flake graphite; for these and others there is now much more flexibility in the size of flake required, and amorphous graphite is no longer restricted to low-end refractories. Alumina-graphite shapes are used as continuous casting ware, such as nozzles and troughs, to convey the molten steel from ladle to mold, and carbon magnesite bricks line steel converters and electric-arc furnaces to withstand extreme temperatures. Graphite blocks are also used in parts of blast furnace linings where the high thermal conductivity of the graphite is critical to ensuring adequate cooling of the bottom and hearth of the furnace. High-purity monolithics are often used as a continuous furnace lining instead of carbon-magnesite bricks.", "title": "Uses of natural graphite" }, { "paragraph_id": 25, "text": "The US and European refractories industry had a crisis in 2000–2003, with an indifferent market for steel and a declining refractory consumption per tonne of steel underlying firm buyouts and many plant closures. Many of the plant closures resulted from the acquisition of Harbison-Walker Refractories by RHI AG and some plants had their equipment auctioned off. Since much of the lost capacity was for carbon-magnesite brick, graphite consumption within the refractories area moved towards alumina-graphite shapes and Monolithics, and away from the brick. The major source of carbon-magnesite brick is now China. Almost all of the above refractories are used to make steel and account for 75% of refractory consumption; the rest is used by a variety of industries, such as cement.", "title": "Uses of natural graphite" }, { "paragraph_id": 26, "text": "According to the USGS, US natural graphite consumption in refractories comprised 12,500 tonnes in 2010.", "title": "Uses of natural graphite" }, { "paragraph_id": 27, "text": "The use of graphite in batteries has increased since the 1970s. Natural and synthetic graphite are used as an anode material to construct electrodes in major battery technologies.", "title": "Uses of natural graphite" }, { "paragraph_id": 28, "text": "The demand for batteries, primarily nickel–metal hydride and lithium-ion batteries, caused a growth in demand for graphite in the late 1980s and early 1990s – a growth driven by portable electronics, such as portable CD players and power tools. Laptops, mobile phones, tablets, and smartphone products have increased the demand for batteries. Electric-vehicle batteries are anticipated to increase graphite demand. As an example, a lithium-ion battery in a fully electric Nissan Leaf contains nearly 40 kg of graphite.", "title": "Uses of natural graphite" }, { "paragraph_id": 29, "text": "Radioactive graphite from old nuclear reactors is being researched as fuel. Nuclear diamond battery has the potential for long duration energy supply for electronics and the internet of things.", "title": "Uses of natural graphite" }, { "paragraph_id": 30, "text": "Graphite is 'predominant anode material used today in lithium-ion batteries' EV batteries contain four basic components: anode, cathode, electrolyte, and separator. While there is much focus on the cathode materials – lithium, nickel, cobalt, manganese, etc. – the predominant anode material used in virtually all EV batteries is graphite.", "title": "Uses of natural graphite" }, { "paragraph_id": 31, "text": "Natural graphite in steelmaking mostly goes into raising the carbon content in molten steel; it can also serve to lubricate the dies used to extrude hot steel. Carbon additives face competitive pricing from alternatives such as synthetic graphite powder, petroleum coke, and other forms of carbon. A carbon raiser is added to increase the carbon content of the steel to a specified level. An estimate based on USGS's graphite consumption statistics indicates that steelmakers in the US used 10,500 tonnes in this fashion in 2005.", "title": "Uses of natural graphite" }, { "paragraph_id": 32, "text": "Natural amorphous and fine flake graphite are used in brake linings or brake shoes for heavier (nonautomotive) vehicles, and became important with the need to substitute for asbestos. This use has been important for quite some time, but nonasbestos organic (NAO) compositions are beginning to reduce graphite's market share. A brake-lining industry shake-out with some plant closures has not been beneficial, nor has an indifferent automotive market. According to the USGS, US natural graphite consumption in brake linings was 6,510 tonnes in 2005.", "title": "Uses of natural graphite" }, { "paragraph_id": 33, "text": "A foundry-facing mold wash is a water-based paint of amorphous or fine flake graphite. Painting the inside of a mold with it and letting it dry leaves a fine graphite coat that will ease the separation of the object cast after the hot metal has cooled. Graphite lubricants are specialty items for use at very high or very low temperatures, as forging die lubricant, an antiseize agent, a gear lubricant for mining machinery, and to lubricate locks. Having low-grit graphite, or even better, no-grit graphite (ultra high purity), is highly desirable. It can be used as a dry powder, in water or oil, or as colloidal graphite (a permanent suspension in a liquid). An estimate based on USGS graphite consumption statistics indicates that 2,200 tonnes were used in this fashion in 2005. Metal can also be impregnated into graphite to create a self-lubricating alloy for application in extreme conditions, such as bearings for machines exposed to high or low temperatures.", "title": "Uses of natural graphite" }, { "paragraph_id": 34, "text": "The ability to leave marks on paper and other objects gave graphite its name, given in 1789 by German mineralogist Abraham Gottlob Werner. It stems from γράφειν (\"graphein\"), meaning to write or draw in Ancient Greek.", "title": "Uses of natural graphite" }, { "paragraph_id": 35, "text": "From the 16th century, all pencils were made with leads of English natural graphite, but modern pencil lead is most commonly a mix of powdered graphite and clay; it was invented by Nicolas-Jacques Conté in 1795. It is chemically unrelated to the metal lead, whose ores had a similar appearance, hence the continuation of the name. Plumbago is another older term for natural graphite used for drawing, typically as a lump of the mineral without a wood casing. The term plumbago drawing is normally restricted to 17th and 18th-century works, mostly portraits.", "title": "Uses of natural graphite" }, { "paragraph_id": 36, "text": "Today, pencils are still a small but significant market for natural graphite. Around 7% of the 1.1 million tonnes produced in 2011 was used to make pencils. Low-quality amorphous graphite is used and sourced mainly from China.", "title": "Uses of natural graphite" }, { "paragraph_id": 37, "text": "In art, graphite is typically used to create detailed and precise drawings, as it allows for a wide range of values (light to dark) to be achieved. It can also be used to create softer, more subtle lines and shading. Graphite is popular among artists because it is easy to control, easy to erase, and produces a clean, professional look. It is also relatively inexpensive and widely available. Many artists use graphite in conjunction with other media, such as charcoal or ink, to create a range of effects and textures in their work.", "title": "Uses of natural graphite" }, { "paragraph_id": 38, "text": "Graphite is probably the most used lubricant in pinewood derbies.", "title": "Uses of natural graphite" }, { "paragraph_id": 39, "text": "Natural graphite has found uses in zinc-carbon batteries, electric motor brushes, and various specialized applications. Graphite of various hardness or softness results in different qualities and tones when used as an artistic medium. Railroads would often mix powdered graphite with waste oil or linseed oil to create a heat-resistant protective coating for the exposed portions of a steam locomotive's boiler, such as the smokebox or lower part of the firebox. The Scope soldering iron uses a graphite tip as its heating element.", "title": "Uses of natural graphite" }, { "paragraph_id": 40, "text": "Expanded graphite is made by immersing natural flake graphite in a bath of chromic acid, then concentrated sulfuric acid, which forces the crystal lattice planes apart, thus expanding the graphite. The expanded graphite can be used to make graphite foil or used directly as a \"hot top\" compound to insulate molten metal in a ladle or red-hot steel ingots and decrease heat loss, or as firestops fitted around a fire door or in sheet metal collars surrounding plastic pipe (during a fire, the graphite expands and chars to resist fire penetration and spread), or to make high-performance gasket material for high-temperature use. After being made into graphite foil, the foil is machined and assembled into the bipolar plates in fuel cells. The foil is made into heat sinks for laptop computers which keeps them cool while saving weight, and is made into a foil laminate that can be used in valve packings or made into gaskets. Old-style packings are now a minor member of this grouping: fine flake graphite in oils or greases for uses requiring heat resistance. A GAN estimate of current US natural graphite consumption in this end-use is 7,500 tonnes.", "title": "Uses of natural graphite" }, { "paragraph_id": 41, "text": "Graphite forms intercalation compounds with some metals and small molecules. In these compounds, the host molecule or atom gets \"sandwiched\" between the graphite layers, resulting in a type of compound with variable stoichiometry. A prominent example of an intercalation compound is potassium graphite, denoted by the formula KC8. Some graphite intercalation compounds are superconductors. The highest transition temperature (by June 2009) Tc = 11.5 K is achieved in CaC6, and it further increases under applied pressure (15.1 K at 8 GPa). Graphite's ability to intercalate lithium ions without significant damage from swelling is what makes it the dominant anode material in lithium-ion batteries.", "title": "Uses of natural graphite" }, { "paragraph_id": 42, "text": "In 1893, Charles Street of Le Carbone discovered a process for making artificial graphite. In the mid-1890s, Edward Goodrich Acheson (1856–1931) accidentally invented another way to produce synthetic graphite after synthesizing carborundum (also called silicon carbide). He discovered that overheating carborundum, as opposed to pure carbon, produced almost pure graphite. While studying the effects of high temperature on carborundum, he had found that silicon vaporizes at about 4,150 °C (7,500 °F), leaving the carbon behind in graphitic carbon. This graphite became valuable as a lubricant.", "title": "History of synthetic graphite" }, { "paragraph_id": 43, "text": "Acheson's technique for producing silicon carbide and graphite is named the Acheson process. In 1896, Acheson received a patent for his method of synthesizing graphite, and in 1897 started commercial production. The Acheson Graphite Co. was formed in 1899.", "title": "History of synthetic graphite" }, { "paragraph_id": 44, "text": "Synthetic graphite can also be prepared from polyimide and then commercialized.", "title": "History of synthetic graphite" }, { "paragraph_id": 45, "text": "Highly oriented pyrolytic graphite (HOPG) is the highest-quality synthetic form of graphite. It is used in scientific research, in particular, as a length standard for the calibration of scanning probe microscopes.", "title": "History of synthetic graphite" }, { "paragraph_id": 46, "text": "Graphite electrodes carry the electricity that melts scrap iron and steel, and sometimes direct-reduced iron (DRI), in electric arc furnaces, which are the vast majority of steel furnaces. They are made from petroleum coke after it is mixed with coal tar pitch. They are extruded and shaped, then baked to carbonize the binder (pitch). This is finally graphitized by heating it to temperatures approaching 3,000 °C (5,430 °F), at which the carbon atoms arrange into graphite. They can vary in size up to 3.5 m (11 ft) long and 75 cm (30 in) in diameter. An increasing proportion of global steel is made using electric arc furnaces, and the electric arc furnace itself is becoming more efficient, making more steel per tonne of electrode. An estimate based on USGS data indicates that graphite electrode consumption was 197,000 t (217,000 short tons) in 2005.", "title": "History of synthetic graphite" }, { "paragraph_id": 47, "text": "Electrolytic aluminium smelting also uses graphitic carbon electrodes. On a much smaller scale, synthetic graphite electrodes are used in electrical discharge machining (EDM), commonly to make injection molds for plastics.", "title": "History of synthetic graphite" }, { "paragraph_id": 48, "text": "The powder is made by heating powdered petroleum coke above the temperature of graphitization, sometimes with minor modifications. The graphite scrap comes from pieces of unusable electrode material (in the manufacturing stage or after use) and lathe turnings, usually after crushing and sizing. Most synthetic graphite powder goes to carbon raising in steel (competing with natural graphite), with some used in batteries and brake linings. According to the United States Geographical Survey, US synthetic graphite powder and scrap production were 95,000 t (93,000 long tons; 105,000 short tons) in 2001 (latest data).", "title": "History of synthetic graphite" }, { "paragraph_id": 49, "text": "Special grades of synthetic graphite, such as Gilsocarbon, also find use as a matrix and neutron moderator within nuclear reactors. Its low neutron cross-section also recommends it for use in proposed fusion reactors. Care must be taken that reactor-grade graphite is free of neutron absorbing materials such as boron, widely used as the seed electrode in commercial graphite deposition systems – this caused the failure of the Germans' World War II graphite-based nuclear reactors. Since they could not isolate the difficulty they were forced to use far more expensive heavy water moderators. Graphite used for nuclear reactors is often referred to as nuclear graphite. Herbert G. McPherson, a Berkeley trained physicist at National Carbon, a division of Union Carbide, was key in confirming a conjecture of Leo Szilard that boron impurities even in \"pure\" graphite were responsible for a neutron absorption cross-section in graphite that compromised U-235 chain reactions. McPherson was aware of the presence of impurities in graphite because, with the use of Technicolor in cinematography, the spectra of graphite electrode arcs used in movie projectors required impurities to enhance emission of light in the red region to display warmer skin tones on the screen. Thus, had it not been for color movies, chances are that the first sustained natural U chain reaction would have required a heavy water moderated reactor.", "title": "History of synthetic graphite" }, { "paragraph_id": 50, "text": "Graphite (carbon) fiber and carbon nanotubes are also used in carbon fiber-reinforced plastics, and in heat-resistant composites such as reinforced carbon-carbon (RCC). Commercial structures made from carbon fiber graphite composites include fishing rods, golf club shafts, bicycle frames, sports car body panels, the fuselage of the Boeing 787 Dreamliner and pool cue sticks and have been successfully employed in reinforced concrete. The mechanical properties of carbon fiber graphite-reinforced plastic composites and grey cast iron are strongly influenced by the role of graphite in these materials. In this context, the term \"(100%) graphite\" is often loosely used to refer to a pure mixture of carbon reinforcement and resin, while the term \"composite\" is used for composite materials with additional ingredients.", "title": "History of synthetic graphite" }, { "paragraph_id": 51, "text": "Modern smokeless powder is coated in graphite to prevent the buildup of static charge.", "title": "History of synthetic graphite" }, { "paragraph_id": 52, "text": "Graphite has been used in at least three radar absorbent materials. It was mixed with rubber in Sumpf and Schornsteinfeger, which were used on U-boat snorkels to reduce their radar cross section. It was also used in tiles on early F-117 Nighthawk stealth strike fighters.", "title": "History of synthetic graphite" }, { "paragraph_id": 53, "text": "Graphite composites are used as absorber for high-energy particles, for example in the Large Hadron Collider beam dump.", "title": "History of synthetic graphite" }, { "paragraph_id": 54, "text": "Graphite rods when filed into shape are used as a tool in glassworking to manipulate hot molten glass.", "title": "History of synthetic graphite" }, { "paragraph_id": 55, "text": "Graphite is mined by both open pit and underground methods. Graphite usually needs beneficiation. This may be carried out by hand-picking the pieces of gangue (rock) and hand-screening the product or by crushing the rock and floating out the graphite. Beneficiation by flotation encounters the difficulty that graphite is very soft and \"marks\" (coats) the particles of gangue. This makes the \"marked\" gangue particles float off with the graphite, yielding impure concentrate. There are two ways of obtaining a commercial concentrate or product: repeated regrinding and floating (up to seven times) to purify the concentrate, or by acid leaching (dissolving) the gangue with hydrofluoric acid (for a silicate gangue) or hydrochloric acid (for a carbonate gangue).", "title": "Graphite mining, beneficiation, and milling" }, { "paragraph_id": 56, "text": "In milling, the incoming graphite products and concentrates can be ground before being classified (sized or screened), with the coarser flake size fractions (below 8 mesh, 8–20 mesh, 20–50 mesh) carefully preserved, and then the carbon contents are determined. Some standard blends can be prepared from the different fractions, each with a certain flake size distribution and carbon content. Custom blends can also be made for individual customers who want a certain flake size distribution and carbon content. If flake size is unimportant, the concentrate can be ground more freely. Typical end products include a fine powder for use as a slurry in oil drilling and coatings for foundry molds, carbon raiser in the steel industry (Synthetic graphite powder and powdered petroleum coke can also be used as carbon raiser). Environmental impacts from graphite mills consist of air pollution including fine particulate exposure of workers and also soil contamination from powder spillages leading to heavy metal contamination of soil.", "title": "Graphite mining, beneficiation, and milling" }, { "paragraph_id": 57, "text": "According to the United States Geological Survey (USGS), world production of natural graphite in 2016 was 1,200,000 tonnes, of which the following major exporters are: China (780,000 t), India (170,000 t), Brazil (80,000 t), Turkey (32,000 t) and North Korea (6,000 t). Graphite is not currently mined in the United States, but there are many historical mine sites including ones in Alabama, Montana, and in the Adirondacks of NY. Westwater Resources is in the development stages of creating a pilot plant for their Coosa Graphite Mine near Sylacauga, Alabama. U.S. production of synthetic graphite in 2010 was 134,000 t valued at $1.07 billion.", "title": "Graphite mining, beneficiation, and milling" }, { "paragraph_id": 58, "text": "Potential health effects include:", "title": "Graphite mining, beneficiation, and milling" }, { "paragraph_id": 59, "text": "The Occupational Safety and Health Administration (OSHA) has set the legal limit (permissible exposure limit) for graphite exposure in the workplace as a time weighted average (TWA) of 15 million particles per cubic foot (1.5 mg/m) over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of TWA 2.5 mg/m respirable dust over an 8-hour workday. At levels of 1250 mg/m, graphite is immediately dangerous to life and health.", "title": "Graphite mining, beneficiation, and milling" }, { "paragraph_id": 60, "text": "The most common way of recycling graphite occurs when synthetic graphite electrodes are either manufactured and pieces are cut off or lathe turnings are discarded for reuse, or the electrode (or other materials) are used all the way down to the electrode holder. A new electrode replaces the old one, but a sizeable piece of the old electrode remains. This is crushed and sized, and the resulting graphite powder is mostly used to raise the carbon content of molten steel.", "title": "Graphite recycling" }, { "paragraph_id": 61, "text": "Graphite-containing refractories are sometimes also recycled, but often are not due to their low graphite content: the largest-volume items, such as carbon-magnesite bricks that contain only 15–25% graphite, usually contain too little graphite to be worthwhile to recycle. However, some recycled carbon–magnesite brick is used as the basis for furnace-repair materials, and also crushed carbon–magnesite brick is used in slag conditioners.", "title": "Graphite recycling" }, { "paragraph_id": 62, "text": "While crucibles have a high graphite content, the volume of crucibles used and then recycled is very small.", "title": "Graphite recycling" }, { "paragraph_id": 63, "text": "A high-quality flake graphite product that closely resembles natural flake graphite can be made from steelmaking kish. Kish is a large-volume near-molten waste skimmed from the molten iron feed to a basic oxygen furnace and consists of a mix of graphite (precipitated out of the supersaturated iron), lime-rich slag, and some iron. The iron is recycled on-site, leaving a mixture of graphite and slag. The best recovery process uses hydraulic classification (which utilizes a flow of water to separate minerals by specific gravity: graphite is light and settles nearly last) to get a 70% graphite rough concentrate. Leaching this concentrate with hydrochloric acid gives a 95% graphite product with a flake size ranging from 10 mesh (2 mm) down.", "title": "Graphite recycling" }, { "paragraph_id": 64, "text": "Globally, over 60,000 patent families in graphite technologies were filed from 2012 to 2021. Patents were filed by applicants from over 60 countries and regions. However, graphite-related patent families originated predominantly from just a few countries. China was the top contributor with more than 47,000 patent families, accounting for four in every five graphite patent families filed worldwide in the last decade. Among other leading countries were Japan, the Republic of Korea, the United States and the Russian Federation. Together, these top five countries of applicant origin accounted for 95 percent of global patenting output related to graphite.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 65, "text": "Among the different graphite sources, flake graphite has the highest number of patent families, with more than 5,600 filed worldwide from 2012 to 2021. Supported by active research from its commercial entities and research institutions, China is the country most actively exploiting flake graphite and has contributed to 85 percent of global patent filings in this area.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 66, "text": "At the same time, innovations exploring new synthesis methods and uses for artificial graphite are gaining interest worldwide, as countries seek to exploit the superior material qualities associated with this man-made substance and reduce reliance on the natural material. Patenting activity is strongly led by commercial entities, particularly world-renowned battery manufacturers and anode material suppliers, with patenting interest focused on battery anode applications.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 67, "text": "The exfoliation process for bulk graphite, which involves separating the carbon layers within graphite, has been extensively studied between 2012-2021. Specifically, ultrasonic and thermal exfoliation have been the two most popular approaches worldwide, with 4,267 and 2,579 patent families, respectively, significantly more than for either the chemical or electrochemical alternatives.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 68, "text": "Global patenting activity relating to ultrasonic exfoliation has decreased over the years, indicating that this low-cost technique has become well established. Thermal exfoliation is a more recent process. Compared to ultrasonic exfoliation, this fast and solvent-free thermal approach has attracted greater commercial interest.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 69, "text": "As the most widespread anode material for lithium-ion batteries, graphite has drawn significant attention worldwide for use in battery applications. With over 8,000 patent families filed from 2012 to 2021, battery applications were a key driver of global graphite-related inventions. Innovations in this area are led by battery manufacturers or anode suppliers who have amassed sizable patent portfolios focused strongly on battery performance improvements based on graphite anode innovation. Besides industry players, academia and research institutions – Chinese universities, in particular – have been an essential source of innovation in graphite anode technologies.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 70, "text": "Graphite for polymer applications was an innovation hot topic from 2012 to 2021, with over 8,000 patent families recorded worldwide. However, in recent years, in the top countries of applicant origin in this area, including China, Japan and the United States of America (US), patent filings have decreased.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 71, "text": "Graphite for manufacturing ceramics represents another area of intensive research, with over 6,000 patent families registered in the last decade alone. Specifically, graphite for refractory accounted for over one-third of ceramics-related graphite patent families in China and about one-fifth in the rest of the world. Other important graphite applications include high-value ceramic materials such as carbides for specific industries, ranging from electrical and electronics, aerospace and precision engineering to military and nuclear applications.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 72, "text": "Carbon brushes represent a long-explored graphite application area. There have been few inventions in this area over the last decade, with less than 300 patent families filed from 2012 to 2021, very significantly less than between 1992-2011.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 73, "text": "Biomedical, sensor, and conductive ink are emerging application areas for graphite that have attracted interest from both academia and commercial entities, including renowned universities and multinational corporations. Typically for an emerging technology area, related patent families were filed by various organizations without any players dominating. As a result, the top applicants have a small number of inventions, unlike in well-explored areas, where they will have strong technology accumulation and large patent portfolios. The innovation focus of these three emerging areas is highly scattered and can be diverse, even for a single applicant. However, recent inventions are seen to leverage the development of graphite nanomaterials, particularly graphite nanocomposites and graphene.", "title": "Research and innovation in graphite technologies" }, { "paragraph_id": 74, "text": "This article incorporates text from a free content work. Licensed under CC-BY. Text taken from Patent Landscape Report - Graphite and its applications, WIPO.", "title": "Sources" } ]
Graphite is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on large scale for uses in pencils, lubricants, and electrodes. Under high pressures and temperatures it converts to diamond. It is a good conductor of both heat and electricity.
2001-07-26T22:25:59Z
2023-12-28T03:28:03Z
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https://en.wikipedia.org/wiki/Graphite
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Garry Trudeau
Garretson Beekman Trudeau (born July 21, 1948) is an American cartoonist, best known for creating the Doonesbury comic strip. Trudeau is also the creator and executive producer of the Amazon Studios political comedy series Alpha House. Trudeau won the Pulitzer Prize for Editorial Cartooning in 1975, making him the first comic strip artist to win a Pulitzer. He is one of only two comic strip artists to win the award, the other being Berkeley Breathed, whose work was influenced by Trudeau. Trudeau was born in New York City, the son of Jean Douglas (née Moore, daughter of New York Assembly member Thomas Channing Moore) and Francis Berger Trudeau Jr. He is the great-grandson of Edward Livingston Trudeau, who created Adirondack Cottage Sanitarium for the treatment of pulmonary tuberculosis at Saranac Lake, New York. Edward was succeeded by his son Francis and grandson Francis Jr. The latter founded the Trudeau Institute at Saranac Lake, with which Garry Trudeau retains a connection. His ancestry is French Canadian, English, Dutch, German, and Swedish. Raised in Saranac Lake, Trudeau attended St. Paul's School in Concord, New Hampshire. He enrolled in Yale University in 1966. As an art major, Trudeau initially focused on painting, but soon discovered a greater interest in the graphic arts. He spent much of his time cartooning and writing for Yale's humor magazine The Yale Record, eventually serving as the magazine's editor-in-chief. At the same time, Trudeau began contributing to the Yale Daily News, which eventually led to the creation of Bull Tales, a comic strip parodying the exploits of Yale quarterback Brian Dowling. This strip was the progenitor of Doonesbury. While still an undergraduate at Yale, Trudeau published two collections of Bull Tales: Bull Tales (1969, published by the Yale Daily News) and Michael J. (1970, published by The Yale Record). As a senior, Trudeau became a member of Scroll and Key. He did postgraduate work at the Yale School of Art, earning a master of fine arts degree in graphic design in 1973. It was there that Trudeau first met photographer David Levinthal, with whom he collaborated on Hitler Moves East, an influential "graphic chronicle" of the German invasion of the Soviet Union. Soon after Bull Tales began running in the Yale student newspaper, the strip caught the attention of the newly formed Universal Press Syndicate. The syndicate's editor, James F. Andrews, recruited Trudeau, changed the strip's name to Doonesbury, and began distributing it following the cartoonist's graduation in 1970. Today Doonesbury is syndicated to 1,000 daily and Sunday newspapers worldwide and is accessible online in association with The Washington Post. In 1975, Trudeau became the first comic strip artist to win a Pulitzer, traditionally awarded to editorial-page cartoonists. He was also a Pulitzer finalist in 1990, 2004, and 2005. Other awards include the National Cartoonist Society Newspaper Comic Strip Award in 1994, and the Reuben Award in 1995. In 1993, Trudeau was made a fellow of the American Academy of Arts and Sciences. Wiley Miller, fellow comic-strip artist responsible for Non Sequitur, called him "far and away the most influential editorial cartoonist in the last 25 years". A regular graduation speaker, Trudeau has received 36 honorary degrees. In addition to his creating his strip, Trudeau has worked in both theater and television. He was nominated for an Oscar in 1977 in the category of Animated Short Film for A Doonesbury Special, created for NBC in collaboration with John and Faith Hubley. The film won the Cannes Film Festival Jury Prize in 1978. In 1984, with composer Elizabeth Swados, he wrote the book and lyrics for the Broadway musical Doonesbury, for which he was nominated for two Drama Desk Awards. A cast album of the show, recorded for MCA, received a Grammy nomination. Trudeau again collaborated with Swados in 1984, this time on Rap Master Ronnie, a satirical revue about the Reagan Administration that opened off-Broadway at the Village Gate. A filmed version, featuring Jon Cryer, the Smothers Brothers, and Carol Kane, was broadcast on Cinemax in 1988. Also in 1988, Trudeau wrote and co-produced with director Robert Altman HBO's critically acclaimed Tanner '88, a satiric look at that year's presidential election campaign. The show won the gold medal for Best Television Series at the Cannes Television Festival, the British Academy Television Award for Best Foreign Program, and Best Imported Program from the British Broadcasting Press Guild. It earned an Emmy Award, as well as four ACE Award nominations. In 2004, Trudeau reunited with Altman to write and co-produce a sequel mini-series, Tanner on Tanner, for the Sundance Channel. In 1996, Newsweek and the Washington Post speculated that Trudeau had written the novel Primary Colors, which was later revealed to have been written by Joe Klein. In February 2000, Trudeau, working with Dotcomix, launched Duke2000, a web-based presidential campaign featuring a real-time, 3-D, streaming-animation version of Duke. Nearly 30 campaign videos were created for the site, and Ambassador Duke was interviewed live by satellite on the Today Show, Larry King Live, The Charlie Rose Show, and dozens of local TV and radio news shows. In 2013, Trudeau created, wrote and co-produced Alpha House, a political sitcom starring John Goodman that revolves around four Republican U.S. Senators who live together in a townhouse on Capitol Hill. Trudeau was inspired to write the show's pilot after reading a 2007 New York Times article about a real D.C. townhouse shared by New York Senator Chuck Schumer, Illinois Senator Dick Durbin, and California Representative George Miller, all Democrats. The pilot for Alpha House was produced by Amazon Studios and aired in early 2013. Due to positive response, Amazon picked up the show to develop into a full series, streaming eleven episodes for its first season. On March 31, 2014, Amazon announced that Alpha House had been renewed. Production began in July 2014, and the entire second season became available for streaming on October 24, 2014. While writing Alpha House, Trudeau put the daily Doonesbury into rerun mode. On March 3, 2014, the "Classic Doonesbury" series began, featuring approximately four weeks of daily strips from each year of the strip's run. He continues to produce new strips for Sundays. Although Alpha House has not been in production since the end of 2014, Trudeau has not returned to creating daily Doonesbury strips; new material remains a Sunday-only event. Trudeau has contributed to such publications as Harper's, Rolling Stone, The New Republic, The New Yorker, New York, and The Washington Post. From 1990 to 1994, he wrote and drew an occasional column for The New York Times op-ed page, and was a contributing essayist for Time magazine from 1996 to 2001. Beginning with the Gulf War in 1991, Trudeau has written about military issues extensively. In recognition for his work on wounded warriors, he has been presented with the Commander's Award for Public Service by the Department of the Army, the Commander's Award from Disabled American Veterans, the President's Award for Excellence in the Arts from Vietnam Veterans of America, the Distinguished Public Service Award from the American Academy of Physical Medicine and Rehabilitation, the Mental Health Research Advocacy Award from the Yale School of Medicine, and a special citation from the Vet Centers. He received several unit commendations from the field during the Gulf War, and he traveled with the USO to visit troops in Iraq and Afghanistan. From 2005 to 2014, his website hosted The Sandbox, a milblog posting over 800 essays by deployed soldiers, returned vets, caregivers, and spouses. For most of the strip's run, Trudeau has eschewed merchandising, but starting in 1998 he teamed up with Starbucks to create Doonesbury products to raise funds for local literacy programs. The items were offered for sale in Starbucks stores for nearly two years and raised over $1 million. Also for charity, Trudeau licensed the strip to Ben & Jerry's, which created a bestselling sorbet flavor called Doonesberry. Trudeau's son Ross, a digital media producer, is also a crossword constructor who has been published in the New York Times. As part of the ongoing celebrity partnership series, father and son collaborated on a crossword puzzle that was published on May 15, 2018, in the Times. Trudeau, formerly a member of Writers Guild of America, East, left and maintained financial core status. Trudeau married Jane Pauley on June 14, 1980; they have three children. He maintains a low personal profile. A rare early appearance on television was as a guest on To Tell the Truth in 1971, where only one of the three panelists guessed his identity. In 1990, Trudeau appeared on the cover of Newsweek for Inside Doonesbury's Brain, a story written by Jonathan Alter. This was the first interview Trudeau had given in 17 years. Trudeau cooperated extensively with Wired magazine for a 2000 profile, "The Revolution Will be Satirized". He later spoke with the writer of that article, Edward Cone, for a 2004 newspaper column in the Greensboro, North Carolina, News & Record, about the war wounds suffered by the Doonesbury character "B.D.", and in 2006 did a Q&A at Cone's personal blog about The Sandbox. Trudeau granted an interview to Rolling Stone in 2004 in which he discussed his time at Yale, which he attended two years behind George W. Bush. He granted another Rolling Stone interview in 2010. In 2006, The Washington Post printed an extensive profile of Trudeau by writer Gene Weingarten. He appeared on the Charlie Rose television program, and at signings for The Long Road Home: One Step at a Time, his Doonesbury book about B.D.'s struggle with injuries received during the second Gulf War. On August 1, 2016, Trudeau appeared on MSNBC on The Rachel Maddow Show. He was brought on to discuss his prediction about Donald Trump's plans to run for president almost three decades earlier. Maddow presented cartoon strips from as far back as 1987. Trudeau was on her show to promote his new book Yuge, which covers 30 years of Trump appearing in Doonesbury. On November 7, 2016, Trudeau appeared on Fresh Air with Terry Gross to discuss Yuge. On the CBS News Sunday Morning broadcast of December 2, 2018, he was featured and was interviewed by his wife, Jane Pauley. Eric Alterman, writing in The Nation, called Doonesbury "one of the great intellectual/artistic accomplishments of the past half-century, irrespective of category". Trudeau has also attracted criticism both for the comic strip and for his own opinions. In 1985, responding to changes after his 1983–1984 hiatus in Doonesbury, readers of The Saturday Review voted Trudeau one of the "Most Overrated People in American Arts and Letters", stating that after his hiatus, his comic strip was "predictable, mean-spirited, and not as funny as before." Trudeau's acceptance speech on the occasion of receiving a Polk Award in 2015 for lifetime achievement stirred controversy. In the speech, Trudeau criticized the cartoonists of Charlie Hebdo—after a number of Charlie Hebdo writers, editors and cartoonists had been murdered execution-style in their own Paris offices by Muslim terrorists—for "punching downward... attacking a powerless, disenfranchised minority with crude, vulgar drawings closer to graffiti than cartoons", and thereby wandering "into the realm of hate speech" with cartoons of Muhammad. Writing in The Atlantic, in which Trudeau had published his speech, political commentator David Frum criticized what he called Trudeau's "moral theory" that calls for identifying "the bearer of privilege", then holding "the privilege-bearer responsible". Trudeau was labeled a "terror apologist" by the editors of The New York Post for his comments, with his choice of the venue in which to make them "adding to the insult". Most of Trudeau's original drawings for Doonesbury, along with letters, notebooks, and other archival materials, are in the collection of the Beinecke Rare Book and Manuscript Library at Yale University. Original drawings are also in the collections of the Library of Congress; the Smithsonian Institute's Museum of American History; the National Portrait Gallery; the National Museum of Health and Medicine; and the Billy Ireland Cartoon Library and Museum at Ohio State University.
[ { "paragraph_id": 0, "text": "Garretson Beekman Trudeau (born July 21, 1948) is an American cartoonist, best known for creating the Doonesbury comic strip. Trudeau is also the creator and executive producer of the Amazon Studios political comedy series Alpha House.", "title": "" }, { "paragraph_id": 1, "text": "Trudeau won the Pulitzer Prize for Editorial Cartooning in 1975, making him the first comic strip artist to win a Pulitzer. He is one of only two comic strip artists to win the award, the other being Berkeley Breathed, whose work was influenced by Trudeau.", "title": "" }, { "paragraph_id": 2, "text": "Trudeau was born in New York City, the son of Jean Douglas (née Moore, daughter of New York Assembly member Thomas Channing Moore) and Francis Berger Trudeau Jr. He is the great-grandson of Edward Livingston Trudeau, who created Adirondack Cottage Sanitarium for the treatment of pulmonary tuberculosis at Saranac Lake, New York. Edward was succeeded by his son Francis and grandson Francis Jr. The latter founded the Trudeau Institute at Saranac Lake, with which Garry Trudeau retains a connection.", "title": "Background and education" }, { "paragraph_id": 3, "text": "His ancestry is French Canadian, English, Dutch, German, and Swedish.", "title": "Background and education" }, { "paragraph_id": 4, "text": "Raised in Saranac Lake, Trudeau attended St. Paul's School in Concord, New Hampshire. He enrolled in Yale University in 1966. As an art major, Trudeau initially focused on painting, but soon discovered a greater interest in the graphic arts. He spent much of his time cartooning and writing for Yale's humor magazine The Yale Record, eventually serving as the magazine's editor-in-chief. At the same time, Trudeau began contributing to the Yale Daily News, which eventually led to the creation of Bull Tales, a comic strip parodying the exploits of Yale quarterback Brian Dowling. This strip was the progenitor of Doonesbury.", "title": "Background and education" }, { "paragraph_id": 5, "text": "While still an undergraduate at Yale, Trudeau published two collections of Bull Tales: Bull Tales (1969, published by the Yale Daily News) and Michael J. (1970, published by The Yale Record).", "title": "Background and education" }, { "paragraph_id": 6, "text": "As a senior, Trudeau became a member of Scroll and Key. He did postgraduate work at the Yale School of Art, earning a master of fine arts degree in graphic design in 1973. It was there that Trudeau first met photographer David Levinthal, with whom he collaborated on Hitler Moves East, an influential \"graphic chronicle\" of the German invasion of the Soviet Union.", "title": "Background and education" }, { "paragraph_id": 7, "text": "Soon after Bull Tales began running in the Yale student newspaper, the strip caught the attention of the newly formed Universal Press Syndicate. The syndicate's editor, James F. Andrews, recruited Trudeau, changed the strip's name to Doonesbury, and began distributing it following the cartoonist's graduation in 1970. Today Doonesbury is syndicated to 1,000 daily and Sunday newspapers worldwide and is accessible online in association with The Washington Post.", "title": "Creative works" }, { "paragraph_id": 8, "text": "In 1975, Trudeau became the first comic strip artist to win a Pulitzer, traditionally awarded to editorial-page cartoonists. He was also a Pulitzer finalist in 1990, 2004, and 2005. Other awards include the National Cartoonist Society Newspaper Comic Strip Award in 1994, and the Reuben Award in 1995. In 1993, Trudeau was made a fellow of the American Academy of Arts and Sciences. Wiley Miller, fellow comic-strip artist responsible for Non Sequitur, called him \"far and away the most influential editorial cartoonist in the last 25 years\". A regular graduation speaker, Trudeau has received 36 honorary degrees.", "title": "Creative works" }, { "paragraph_id": 9, "text": "In addition to his creating his strip, Trudeau has worked in both theater and television. He was nominated for an Oscar in 1977 in the category of Animated Short Film for A Doonesbury Special, created for NBC in collaboration with John and Faith Hubley. The film won the Cannes Film Festival Jury Prize in 1978. In 1984, with composer Elizabeth Swados, he wrote the book and lyrics for the Broadway musical Doonesbury, for which he was nominated for two Drama Desk Awards. A cast album of the show, recorded for MCA, received a Grammy nomination. Trudeau again collaborated with Swados in 1984, this time on Rap Master Ronnie, a satirical revue about the Reagan Administration that opened off-Broadway at the Village Gate. A filmed version, featuring Jon Cryer, the Smothers Brothers, and Carol Kane, was broadcast on Cinemax in 1988.", "title": "Creative works" }, { "paragraph_id": 10, "text": "Also in 1988, Trudeau wrote and co-produced with director Robert Altman HBO's critically acclaimed Tanner '88, a satiric look at that year's presidential election campaign. The show won the gold medal for Best Television Series at the Cannes Television Festival, the British Academy Television Award for Best Foreign Program, and Best Imported Program from the British Broadcasting Press Guild. It earned an Emmy Award, as well as four ACE Award nominations. In 2004, Trudeau reunited with Altman to write and co-produce a sequel mini-series, Tanner on Tanner, for the Sundance Channel.", "title": "Creative works" }, { "paragraph_id": 11, "text": "In 1996, Newsweek and the Washington Post speculated that Trudeau had written the novel Primary Colors, which was later revealed to have been written by Joe Klein. In February 2000, Trudeau, working with Dotcomix, launched Duke2000, a web-based presidential campaign featuring a real-time, 3-D, streaming-animation version of Duke. Nearly 30 campaign videos were created for the site, and Ambassador Duke was interviewed live by satellite on the Today Show, Larry King Live, The Charlie Rose Show, and dozens of local TV and radio news shows.", "title": "Creative works" }, { "paragraph_id": 12, "text": "In 2013, Trudeau created, wrote and co-produced Alpha House, a political sitcom starring John Goodman that revolves around four Republican U.S. Senators who live together in a townhouse on Capitol Hill. Trudeau was inspired to write the show's pilot after reading a 2007 New York Times article about a real D.C. townhouse shared by New York Senator Chuck Schumer, Illinois Senator Dick Durbin, and California Representative George Miller, all Democrats. The pilot for Alpha House was produced by Amazon Studios and aired in early 2013. Due to positive response, Amazon picked up the show to develop into a full series, streaming eleven episodes for its first season. On March 31, 2014, Amazon announced that Alpha House had been renewed. Production began in July 2014, and the entire second season became available for streaming on October 24, 2014.", "title": "Creative works" }, { "paragraph_id": 13, "text": "While writing Alpha House, Trudeau put the daily Doonesbury into rerun mode. On March 3, 2014, the \"Classic Doonesbury\" series began, featuring approximately four weeks of daily strips from each year of the strip's run. He continues to produce new strips for Sundays. Although Alpha House has not been in production since the end of 2014, Trudeau has not returned to creating daily Doonesbury strips; new material remains a Sunday-only event.", "title": "Creative works" }, { "paragraph_id": 14, "text": "Trudeau has contributed to such publications as Harper's, Rolling Stone, The New Republic, The New Yorker, New York, and The Washington Post. From 1990 to 1994, he wrote and drew an occasional column for The New York Times op-ed page, and was a contributing essayist for Time magazine from 1996 to 2001.", "title": "Creative works" }, { "paragraph_id": 15, "text": "Beginning with the Gulf War in 1991, Trudeau has written about military issues extensively. In recognition for his work on wounded warriors, he has been presented with the Commander's Award for Public Service by the Department of the Army, the Commander's Award from Disabled American Veterans, the President's Award for Excellence in the Arts from Vietnam Veterans of America, the Distinguished Public Service Award from the American Academy of Physical Medicine and Rehabilitation, the Mental Health Research Advocacy Award from the Yale School of Medicine, and a special citation from the Vet Centers.", "title": "Creative works" }, { "paragraph_id": 16, "text": "He received several unit commendations from the field during the Gulf War, and he traveled with the USO to visit troops in Iraq and Afghanistan. From 2005 to 2014, his website hosted The Sandbox, a milblog posting over 800 essays by deployed soldiers, returned vets, caregivers, and spouses. For most of the strip's run, Trudeau has eschewed merchandising, but starting in 1998 he teamed up with Starbucks to create Doonesbury products to raise funds for local literacy programs. The items were offered for sale in Starbucks stores for nearly two years and raised over $1 million. Also for charity, Trudeau licensed the strip to Ben & Jerry's, which created a bestselling sorbet flavor called Doonesberry.", "title": "Creative works" }, { "paragraph_id": 17, "text": "Trudeau's son Ross, a digital media producer, is also a crossword constructor who has been published in the New York Times. As part of the ongoing celebrity partnership series, father and son collaborated on a crossword puzzle that was published on May 15, 2018, in the Times.", "title": "Creative works" }, { "paragraph_id": 18, "text": "Trudeau, formerly a member of Writers Guild of America, East, left and maintained financial core status.", "title": "Creative works" }, { "paragraph_id": 19, "text": "Trudeau married Jane Pauley on June 14, 1980; they have three children. He maintains a low personal profile. A rare early appearance on television was as a guest on To Tell the Truth in 1971, where only one of the three panelists guessed his identity. In 1990, Trudeau appeared on the cover of Newsweek for Inside Doonesbury's Brain, a story written by Jonathan Alter. This was the first interview Trudeau had given in 17 years.", "title": "Private life and public appearances" }, { "paragraph_id": 20, "text": "Trudeau cooperated extensively with Wired magazine for a 2000 profile, \"The Revolution Will be Satirized\". He later spoke with the writer of that article, Edward Cone, for a 2004 newspaper column in the Greensboro, North Carolina, News & Record, about the war wounds suffered by the Doonesbury character \"B.D.\", and in 2006 did a Q&A at Cone's personal blog about The Sandbox. Trudeau granted an interview to Rolling Stone in 2004 in which he discussed his time at Yale, which he attended two years behind George W. Bush. He granted another Rolling Stone interview in 2010. In 2006, The Washington Post printed an extensive profile of Trudeau by writer Gene Weingarten. He appeared on the Charlie Rose television program, and at signings for The Long Road Home: One Step at a Time, his Doonesbury book about B.D.'s struggle with injuries received during the second Gulf War.", "title": "Private life and public appearances" }, { "paragraph_id": 21, "text": "On August 1, 2016, Trudeau appeared on MSNBC on The Rachel Maddow Show. He was brought on to discuss his prediction about Donald Trump's plans to run for president almost three decades earlier. Maddow presented cartoon strips from as far back as 1987. Trudeau was on her show to promote his new book Yuge, which covers 30 years of Trump appearing in Doonesbury. On November 7, 2016, Trudeau appeared on Fresh Air with Terry Gross to discuss Yuge. On the CBS News Sunday Morning broadcast of December 2, 2018, he was featured and was interviewed by his wife, Jane Pauley.", "title": "Private life and public appearances" }, { "paragraph_id": 22, "text": "Eric Alterman, writing in The Nation, called Doonesbury \"one of the great intellectual/artistic accomplishments of the past half-century, irrespective of category\".", "title": "Appraisals and controversies" }, { "paragraph_id": 23, "text": "Trudeau has also attracted criticism both for the comic strip and for his own opinions. In 1985, responding to changes after his 1983–1984 hiatus in Doonesbury, readers of The Saturday Review voted Trudeau one of the \"Most Overrated People in American Arts and Letters\", stating that after his hiatus, his comic strip was \"predictable, mean-spirited, and not as funny as before.\" Trudeau's acceptance speech on the occasion of receiving a Polk Award in 2015 for lifetime achievement stirred controversy. In the speech, Trudeau criticized the cartoonists of Charlie Hebdo—after a number of Charlie Hebdo writers, editors and cartoonists had been murdered execution-style in their own Paris offices by Muslim terrorists—for \"punching downward... attacking a powerless, disenfranchised minority with crude, vulgar drawings closer to graffiti than cartoons\", and thereby wandering \"into the realm of hate speech\" with cartoons of Muhammad. Writing in The Atlantic, in which Trudeau had published his speech, political commentator David Frum criticized what he called Trudeau's \"moral theory\" that calls for identifying \"the bearer of privilege\", then holding \"the privilege-bearer responsible\". Trudeau was labeled a \"terror apologist\" by the editors of The New York Post for his comments, with his choice of the venue in which to make them \"adding to the insult\".", "title": "Appraisals and controversies" }, { "paragraph_id": 24, "text": "Most of Trudeau's original drawings for Doonesbury, along with letters, notebooks, and other archival materials, are in the collection of the Beinecke Rare Book and Manuscript Library at Yale University. Original drawings are also in the collections of the Library of Congress; the Smithsonian Institute's Museum of American History; the National Portrait Gallery; the National Museum of Health and Medicine; and the Billy Ireland Cartoon Library and Museum at Ohio State University.", "title": "Collections" } ]
Garretson Beekman Trudeau is an American cartoonist, best known for creating the Doonesbury comic strip. Trudeau is also the creator and executive producer of the Amazon Studios political comedy series Alpha House. Trudeau won the Pulitzer Prize for Editorial Cartooning in 1975, making him the first comic strip artist to win a Pulitzer. He is one of only two comic strip artists to win the award, the other being Berkeley Breathed, whose work was influenced by Trudeau.
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https://en.wikipedia.org/wiki/Garry_Trudeau
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Guild
A guild (/ɡɪld/ GILD) is an association of artisans and merchants who oversee the practice of their craft/trade in a particular territory. The earliest types of guild formed as organizations of tradespeople belonging to a professional association. They sometimes depended on grants of letters patent from a monarch or other ruler to enforce the flow of trade to their self-employed members, and to retain ownership of tools and the supply of materials, but most were regulated by the local government. Guild members found guilty of cheating the public would be fined or banned from the guild. A lasting legacy of traditional guilds are the guildhalls constructed and used as guild meeting-places. Typically the key "privilege" was that only guild members were allowed to sell their goods or practice their skill within the city. There might be controls on minimum or maximum prices, hours of trading, numbers of apprentices, and many other things. Critics argued that these rules reduced free competition, but defenders maintained that they protected professional standards. An important result of the guild framework was the emergence of universities at Bologna (established in 1088), Oxford (at least since 1096) and Paris (c. 1150); they originated as guilds of students (as at Bologna) or of masters (as at Paris). Naram-Sin of Akkad (c. 2254–2218 BC), grandson of Sargon of Akkad who had unified Sumeria and Assyria into the Akkadian Empire, promulgated common Mesopotamian standards for length, area, volume, weight, time, and shekels, which were used by artisan guilds in each city. Code of Hammurabi Law 234 (c. 1755–1750 BC) stipulated a 2-shekel wage for each 60-gur (300-bushel) vessel constructed in an employment contract between a shipbuilder and a ship-owner. Law 275 stipulated a ferry rate of 3-gerah per day on a charterparty between a ship charterer and a shipmaster. Law 276 stipulated a 21⁄2-gerah per day freight rate on a contract of affreightment between a charterer and shipmaster, while Law 277 stipulated a 1⁄6-shekel per day freight rate for a 60-gur vessel. A type of guild was known in Roman times. Known as collegium, collegia or corpus, these were organised groups of merchants who specialised in a particular craft and whose membership of the group was voluntary. One such example is the corpus naviculariorum, a collegium of merchant mariners based at Rome's La Ostia port. The Roman guilds failed to survive the collapse of the Roman Empire. A collegium was any association or corporation that acted as a legal entity. In 1816, an archeological excavation in Minya, Egypt produced a Nerva–Antonine dynasty-era (second-century AD) clay tablet from the ruins of the Temple of Antinous in Antinoöpolis, Aegyptus that prescribed the rules and membership dues of a burial society collegium established in Lanuvium, Italia in approximately 133 AD. Following the passage of the Lex Julia in 45 BC, and its reaffirmation during the reign of Caesar Augustus (27 BC–14 AD), collegia required the approval of the Roman Senate or the emperor in order to be authorized as legal bodies. Ruins at Lambaesis date the formation of burial societies among Roman soldiers and mariners to the reign of Septimius Severus (193–211) in 198 AD. In September 2011, archeological investigations done at the site of an artificial harbor in Rome, the Portus, revealed inscriptions in a shipyard constructed during the reign of Trajan (98–117) indicating the existence of a shipbuilders guild. Collegia also included fraternities of priests overseeing sacrifices, practicing augury, keeping religious texts, arranging festivals, and maintaining specific religious cults. There were several types of guilds, including the two main categories of merchant guilds and craft guilds but also the frith guild and religious guild. Guilds arose beginning in the High Middle Ages as craftsmen united to protect their common interests. In the German city of Augsburg craft guilds are mentioned in the Towncharter of 1156. The continental system of guilds and merchants arrived in England after the Norman Conquest, with incorporated societies of merchants in each town or city holding exclusive rights of doing business there. In many cases they became the governing body of a town. For example, London's Guildhall became the seat of the Court of Common Council of the City of London Corporation, the world's oldest continuously elected local government, whose members to this day must be Freemen of the city. The Freedom of the City, effective from the Middle Ages until 1835, gave the right to trade, and was only bestowed upon members of a Guild or Livery. Early egalitarian communities called "guilds" were denounced by Catholic clergy for their "conjurations" — the binding oaths sworn among the members to support one another in adversity, kill specific enemies, and back one another in feuds or in business ventures. The occasion for these oaths were drunken banquets held on December 26. In 858, West Francian Bishop Hincmar sought vainly to Christianise the guilds. In the Early Middle Ages, most of the Roman craft organisations, originally formed as religious confraternities, had disappeared, with the apparent exceptions of stonecutters and perhaps glassmakers, mostly the people that had local skills. Gregory of Tours tells a miraculous tale of a builder whose art and techniques suddenly left him, but were restored by an apparition of the Virgin Mary in a dream. Michel Rouche remarks that the story speaks for the importance of practically transmitted journeymanship. In France, guilds were called corps de métiers. According to Viktor Ivanovich Rutenburg, "Within the guild itself there was very little division of labour, which tended to operate rather between the guilds. Thus, according to Étienne Boileau's Book of Handicrafts, by the mid-13th century there were no less than 100 guilds in Paris, a figure which by the 14th century had risen to 350." There were different guilds of metal-workers: the farriers, knife-makers, locksmiths, chain-forgers, nail-makers, often formed separate and distinct corporations; the armourers were divided into helmet-makers, escutcheon-makers, harness-makers, harness-polishers, etc. In Catalan towns, especially at Barcelona, guilds or gremis were a basic agent in the society: a shoemakers' guild is recorded in 1208. In England, specifically in the City of London Corporation, more than 110 guilds, referred to as livery companies, survive today, with the oldest 868 years old. Other groups, such as the Worshipful Company of Tax Advisers, have been formed far more recently. Membership in a livery company is expected for individuals participating in the governance of The City, as the Lord Mayor and the Remembrancer. The guild system reached a mature state in Germany c. 1300 and held on in German cities into the 19th century, with some special privileges for certain occupations remaining today. In the 15th century, Hamburg had 100 guilds, Cologne 80, and Lübeck 70. The latest guilds to develop in Western Europe were the gremios of Spain: e.g., Valencia (1332) or Toledo (1426). Not all city economies were controlled by guilds; some cities were "free." Where guilds were in control, they shaped labor, production and trade; they had strong controls over instructional capital, and the modern concepts of a lifetime progression of apprentice to craftsman, and then from journeyman eventually to widely recognized master and grandmaster began to emerge. In order to become a master, a journeyman would have to go on a three-year voyage called journeyman years. The practice of the journeyman years still exists in Germany and France. As production became more specialized, trade guilds were divided and subdivided, eliciting the squabbles over jurisdiction that produced the paperwork by which economic historians trace their development: The metalworking guilds of Nuremberg were divided among dozens of independent trades in the boom economy of the 13th century, and there were 101 trades in Paris by 1260. In Ghent, as in Florence, the woolen textile industry developed as a congeries of specialized guilds. The appearance of the European guilds was tied to the emergent money economy, and to urbanization. Before this time it was not possible to run a money-driven organization, as commodity money was the normal way of doing business. The guild was at the center of European handicraft organization into the 16th century. In France, a resurgence of the guilds in the second half of the 17th century is symptomatic of Louis XIV and Jean Baptiste Colbert's administration's concerns to impose unity, control production, and reap the benefits of transparent structure in the shape of efficient taxation. The guilds were identified with organizations enjoying certain privileges (letters patent), usually issued by the king or state and overseen by local town business authorities (some kind of chamber of commerce). These were the predecessors of the modern patent and trademark system. The guilds also maintained funds in order to support infirm or elderly members, as well as widows and orphans of guild members, funeral benefits, and a 'tramping' allowance for those needing to travel to find work. As the guild system of the City of London declined during the 17th century, the Livery Companies transformed into mutual assistance fraternities along such lines. European guilds imposed long standardized periods of apprenticeship, and made it difficult for those lacking the capital to set up for themselves or without the approval of their peers to gain access to materials or knowledge, or to sell into certain markets, an area that equally dominated the guilds' concerns. These are defining characteristics of mercantilism in economics, which dominated most European thinking about political economy until the rise of classical economics. The guild system survived the emergence of early capitalists, which began to divide guild members into "haves" and dependent "have-nots". The civil struggles that characterize the 14th-century towns and cities were struggles in part between the greater guilds and the lesser artisanal guilds, which depended on piecework. "In Florence, they were openly distinguished: the Arti maggiori and the Arti minori—already there was a popolo grasso and a popolo magro". Fiercer struggles were those between essentially conservative guilds and the merchant class, which increasingly came to control the means of production and the capital that could be ventured in expansive schemes, often under the rules of guilds of their own. German social historians trace the Zunftrevolution, the urban revolution of guildmembers against a controlling urban patriciate, sometimes reading into them, however, perceived foretastes of the class struggles of the 19th century. In the countryside, where guild rules did not operate, there was freedom for the entrepreneur with capital to organize cottage industry, a network of cottagers who spun and wove in their own premises on his account, provided with their raw materials, perhaps even their looms, by the capitalist who took a share of the profits. Such a dispersed system could not so easily be controlled where there was a vigorous local market for the raw materials: wool was easily available in sheep-rearing regions, whereas silk was not. In Florence, Italy, there were seven to twelve "greater guilds" and fourteen "lesser guilds". The most important of the greater guilds was that for judges and notaries, who handled the legal business of all the other guilds and often served as an arbitrator of disputes. Other greater guilds include the wool, silk, and the money changers' guilds. They prided themselves on a reputation for very high-quality work, which was rewarded with premium prices. The guilds fined members who deviated from standards. Other greater guilds included those of doctors, druggists, and furriers. Among the lesser guilds, were those for bakers, saddle makers, ironworkers and other artisans. They had a sizable membership, but lacked the political and social standing necessary to influence city affairs. The guild was made up by experienced and confirmed experts in their field of handicraft. They were called master craftsmen. Before a new employee could rise to the level of mastery, he had to go through a schooling period during which he was first called an apprenticeship. After this period he could rise to the level of journeyman. Apprentices would typically not learn more than the most basic techniques until they were trusted by their peers to keep the guild's or company's secrets. Like journey, the distance that could be travelled in a day, the title 'journeyman' derives from the French words for 'day' (jour and journée) from which came the middle English word journei. Journeymen were able to work for other masters, unlike apprentices, and generally paid by the day and were thus day labourers. After being employed by a master for several years, and after producing a qualifying piece of work, the apprentice was granted the rank of journeyman and was given documents (letters or certificates from his master and/or the guild itself) which certified him as a journeyman and entitled him to travel to other towns and countries to learn the art from other masters. These journeys could span large parts of Europe and were an unofficial way of communicating new methods and techniques, though by no means all journeymen made such travels — they were most common in Germany and Italy, and in other countries journeymen from small cities would often visit the capital. After this journey and several years of experience, a journeyman could be received as master craftsman, though in some guilds this step could be made straight from apprentice. This would typically require the approval of all masters of a guild, a donation of money and other goods (often omitted for sons of existing members), and the production of a so-called "masterpiece", which would illustrate the abilities of the aspiring master craftsman; this was often retained by the guild. The medieval guild was established by charters or letters patent or similar authority by the city or the ruler and normally held a monopoly on trade in its craft within the city in which it operated: handicraft workers were forbidden by law to run any business if they were not members of a guild, and only masters were allowed to be members of a guild. Before these privileges were legislated, these groups of handicraft workers were simply called 'handicraft associations'. The town authorities might be represented in the guild meetings and thus had a means of controlling the handicraft activities. This was important since towns very often depended on a good reputation for export of a narrow range of products, on which not only the guild's, but the town's, reputation depended. Controls on the association of physical locations to well-known exported products, e.g. wine from the Champagne and Bordeaux regions of France, tin-glazed earthenwares from certain cities in Holland, lace from Chantilly, etc., helped to establish a town's place in global commerce — this led to modern trademarks. In many German and Italian cities, the more powerful guilds often had considerable political influence, and sometimes attempted to control the city authorities. In the 14th century, this led to numerous bloody uprisings, during which the guilds dissolved town councils and detained patricians in an attempt to increase their influence. In fourteenth-century north-east Germany, people of Wendish, i.e. Slavic, origin were not allowed to join some guilds. According to Wilhelm Raabe, "down into the eighteenth century no German guild accepted a Wend." In the Russian Empire, from the reform of Peter the Great (beginning of the 17th century) until 1917, these were corporations of wealthy merchants, with their own rights. They therefore constituted an Order which was divided, according to property, into three classes: merchant of the first Guild, of the second Guild, and of the third Guild and was transmissible hereditarily. Ogilvie (2004) argues that guilds negatively affected quality, skills, and innovation. Through what economists now call "rent-seeking" they imposed deadweight losses on the economy. Ogilvie argues they generated limited positive externalities and notes that industry began to flourish only after the guilds faded away. Guilds persisted over the centuries because they redistributed resources to politically powerful merchants. On the other hand, Ogilvie agrees, guilds created "social capital" of shared norms, common information, mutual sanctions, and collective political action. This social capital benefited guild members, even as it arguably hurt outsiders. The guild system became a target of much criticism towards the end of the 18th century and the beginning of the 19th century. Critics argued that they hindered free trade and technological innovation, technology transfer and business development. According to several accounts of this time, guilds became increasingly involved in simple territorial struggles against each other and against free practitioners of their arts. Two of the most outspoken critics of the guild system were Jean-Jacques Rousseau and Adam Smith, and all over Europe a tendency to oppose government control over trades in favour of laissez-faire free market systems grew rapidly and made its way into the political and legal systems. Many people who participated in the French Revolution saw guilds as a last remnant of feudalism. The d'Allarde Law of 2 March 1791 suppressed the guilds in France. In 1803 the Napoleonic Code banned any coalition of workmen whatsoever. Smith wrote in The Wealth of Nations (Book I, Chapter X, paragraph 72): It is to prevent this reduction of price, and consequently of wages and profit, by restraining that free competition which would most certainly occasion it, that all corporations, and the greater part of corporation laws, have been established. (...) and when any particular class of artificers or traders thought proper to act as a corporation without a charter, such adulterine guilds, as they were called, were not always disfranchised upon that account, but obliged to fine annually to the king for permission to exercise their usurped privileges. Karl Marx in his Communist Manifesto also criticized the guild system for its rigid gradation of social rank and what he saw as the relation of oppressor and oppressed entailed by this system. It was the 18th and 19th centuries that saw the beginning of the low regard in which some people hold the guilds to this day. In part due to their own inability to control unruly corporate behavior, the tide of public opinion turned against the guilds. Because of industrialization and modernization of the trade and industry, and the rise of powerful nation-states that could directly issue patent and copyright protections — often revealing the trade secrets — the guilds' power faded. After the French Revolution they gradually fell in most European nations over the course of the 19th century, as the guild system was disbanded and replaced by laws that promoted free trade. As a consequence of the decline of guilds, many former handicraft workers were forced to seek employment in the emerging manufacturing industries, using not closely guarded techniques formerly protected by guilds, but rather the standardized methods controlled by corporations. Interest in the medieval guild system was revived during the late 19th century, among far-right circles. Fascism in Italy (among other countries) implemented corporatism, operating at the national rather than city level, to try to imitate the corporatism of the Middle Ages. Guilds are sometimes said to be the precursors of modern cartels. Guilds, however, can also be seen as a set of self-employed skilled craftsmen with ownership and control over the materials and tools they needed to produce their goods. Some argue that guilds operated more like cartels than they were like trade unions (Olson 1982). However, the journeymen organizations, which were at the time illegal, may have been influential. The exclusive privilege of a guild to produce certain goods or provide certain services was similar in spirit and character to the original patent systems that surfaced in England in 1624. These systems played a role in ending the guilds' dominance, as trade secret methods were superseded by modern firms directly revealing their techniques, and counting on the state to enforce their legal monopoly. Some guild traditions still remain in a few handicrafts, in Europe especially among shoemakers and barbers. These are, however, not very important economically except as reminders of the responsibilities of some trades toward the public. Modern antitrust law could be said to derive in some ways from the original statutes by which the guilds were abolished in Europe. The economic consequences of guilds have led to heated debates among economic historians. On the one side, scholars say that since merchant guilds persisted over long periods they must have been efficient institutions (since inefficient institutions die out). Others say they persisted not because they benefited the entire economy but because they benefited the owners, who used political power to protect them. Ogilvie (2011) says they regulated trade for their own benefit, were monopolies, distorted markets, fixed prices, and restricted entrance into the guild. Ogilvie (2008) argues that their long apprenticeships were unnecessary to acquire skills, and their conservatism reduced the rate of innovation and made the society poorer. She says their main goal was rent seeking, that is, to shift money to the membership at the expense of the entire economy. Epstein and Prak's book (2008) rejects Ogilvie's conclusions. Specifically, Epstein argues that guilds were cost-sharing rather than rent-seeking institutions. They located and matched masters and likely apprentices through monitored learning. Whereas the acquisition of craft skills required experience-based learning, he argues that this process necessitated many years in apprenticeship. The extent to which guilds were able to monopolize markets is also debated. Guilds were often heavily concerned with product quality. The regulations they established on their own members' work, as well as targeting non-guild members for illicit practice, was to create a standard of work that the consumer could rely on. They were heavily concerned with public perception. In October 1712, the Lyon Wigmaker Guild petitioned the local police magistrates. According to this petition, guildmasters required guild officers to step up policing of statutes forbidding the use of bleached hair or wild goat and lamb hair. The real concern that they had was that bleaching hair destroyed the quality of the wig, making it too thin to style. Guild officers pointed out that if the consumer discovers the bad quality, the guild would be blamed, and the consumer would search elsewhere to purchase goods. Women's participation within medieval guilds was complex and varied. On one hand, guild membership allowed women to participate in the economy that provided social privilege and community. On the other hand, most trade and craft guilds were male-dominated and frequently limited women's rights if they were members, or did not allow membership at all. The most common way women obtained guild membership was through marriage. Usually only the widows and daughters of known masters were allowed in. Even if a woman entered a guild, she was excluded from guild offices. It's important to note that while this was the overarching practice, there were guilds and professions that did allow women's participation, and that the Medieval era was an ever-changing, mutable society—especially considering that it spanned hundreds of years and many different cultures. There were multiple accounts of women's participation in guilds in England and the Continent. In a study of London silkwomen of the 15th century by Marian K. Dale, she notes that medieval women could inherit property, belong to guilds, manage estates, and run the family business if widowed. The Livre des métiers de Paris (Book of Trades of Paris) was compiled by Étienne Boileau, the Grand Provost of Paris under King Louis IX. It documents that 5 out of 110 Parisian guilds were female monopolies, and that only a few guilds systematically excluded women. Boileau notes that some professions were also open to women: surgeons, glass-blowers, chain-mail forgers. Entertainment guilds also had a significant number of women members. John, Duke of Berry documents payments to female musicians from Le Puy, Lyons, and Paris. In Rouen women had participated as full-fledged masters in 7 of the city's 112 guilds since the 13th century. There were still many restrictions. Medieval Parisian guilds did not offer women independent control of their work. Women did have problems with entering healers' guilds, as opposed to their relative freedom in trade or craft guilds. Their status in healers' guilds were often challenged. The idea that medicine should only be practiced by men was supported by some religious and secular authorities at the time. It is believed that the Inquisition and witch hunts throughout the ages contributed to the lack of women in medical guilds. In medieval Cologne there were three guilds that were composed almost entirely of women, the yarn-spinners, gold-spinners, and silk-weavers. Men could join these guilds, but were almost exclusively married to guildswomen. This was a required regulation of the yarn-spinners guild. The guildswomen of the gold-spinners guild were often wives of guildsmen of the gold-smiths. This type of unity between husband and wife was seen in women's guild participation through the medieval and early modern periods; in order to avoid unpleasant litigation or legal situations, the trades of husband and wife often were the same or complementary. Women were not restricted to solely textile guilds in medieval Cologne, and neither did they have total freedom in all textile guilds. They had limited participation in the guilds of dyers, cotton-weavers, and guilds in the leather industry. They did enjoy full rights in some wood-working guilds, the guilds of coopers and turners. Women also seemed to have extensively engaged in the fish trade, both within and outside of the guild. The butcher and cattle-trade guilds also listed women among their ranks. In practically all of these guilds, a widow was allowed to continue her husband's business. If she remarried to a man who was not a member, she usually lost that right. The historian Alice Clark published a study in 1919 on women's participation in guilds during the Medieval period. She argued that the guild system empowered women to participate in family businesses. This viewpoint, among others of Clark's, has been criticized by fellow historians, and has sparked debate in scholarly circles. Clark's analysis of the period is that things change during the early modern period, specifically the 17th century, and become more stifling for women in guilds. She also posits that domestic life drove women out of guild participation. Many historians have done research into the dwindling women's participation in guilds. Studies have provided a contradictory picture. Recent historical research is usually posed in rebuttal to Alice Clark's study on the economic marginalization of women in the 17th c., and has highlighted that domestic life did not organize women's economic activities. The research has documented women's extensive participation in market relations, craft production, and paid labor in the early modern period. Clare Crowston posits that women gained more control of their own work. In the 16th and 17th centuries, rather than losing control, female linen drapers and hemp merchants established independent guilds. In the late 17th century and onward, there was evidence of growing economic opportunities for women. Seamstresses in Paris and Rouen and flower sellers in Paris acquired their own guilds in 1675. In Dijon, the number of female artisans recorded in tax rolls rose substantially between the years of 1643 and 1750. In 18th c. Nantes, there was a significant growth in women's access to guilds, with no restrictions on their rights. Historian Merry Wiesner attributed a decline in women's labor in south German cities from the 16th-18th centuries to both economic and cultural factors; as trades became more specialized, women's domestic responsibilities hindered them from entering the workforce. German guilds started to further regulate women's participation at this time, limiting the privileges of wives, widows, and daughters. It also forbade masters from hiring women. Crowston notes that the decline thesis has been reaffirmed in the German context by Wiesner and Ogilvie, but that it doesn't work in looking at the matter from a larger scope, as her expertise is in French history. There were exclusively female guilds that came out of the woodwork in the 17th century, primarily Paris, Rouen, and Cologne. In 1675, Parisian seamstresses requested the guild as their trade was organized and profitable enough to support incorporation. Some of the guilds in Cologne had been made up almost entirely of women since the medieval period. Early modern Rouen was an important center of guildswomen's activity. By 1775, there were about 700 female masters, accounting for 10% of all guild masters in the city. A survey that circulated in the late 18th century listed that the Rouen ribbonmakers had 149 masters, mistresses, and widows, indicating its mixed gendered composition. A tax roll of 1775 indicated that their total membership was about 160, with 58 men, 17 widows, 55 wives, and 30 unmarried women. Historians have noted the essential contributions that women made to these guilds. Many scholars have asserted that it would have been impossible for male merchants and craftsmen to start a business, let alone run it, without the help of their wives. The oldest women's guild in Paris dealt in linens, including household linens, layettes for babies, and undergarments. There seemed to be a major wealth disparity among its members. The linen workers whose sheds were at the center of Les Halles caused the guild some trouble. There was a perception that these workers also trafficked in sex as well as linens, which made the guild emphatic about its own morality. On the other end of the social divide, the linen trade was a respectable occupation for married and single women of high social standing. In France, special provisions had to be made in order to assure that woman could move relatively freely in the textile guilds of Paris and Rouen. They used a special legal formula, the privilege of the marchande publique. This legal device made certain that a woman had the right to participate on her own behalf in the economy, and thus didn't require references to her husband's resources or possible involvement. If a woman didn't join a guild first, she was required to obtain her husband's permission in order to receive the status of marchande publique. If she did join a guild, the status was conferred automatically. The privilege of marchande publique allowed a woman to participate in business as a legal adult, sign contracts, go to court, and borrow money. In Amsterdam, seamstresses acquired an independent guild in 1579. In several other cities of the Netherlands, they obtained subordinate positions in the tailors' guilds during the late 17th and 18th centuries. Frenchwomen provided vocational training to apprentices. In apprenticeship contracts the names and trades of spouses would both appear. The trades were usually the same or closely related. In earlier research, lack of contracts led scholars to believe that women and girls never received official training, and instead learned their trade at home. This was debunked with Clare Crowston's research on parish schools in France. Instead of apprenticeships, girls could receive an alternative form of vocational training from these schools. Students entered at around eight for two years of education, and were segregated by gender. Boys studied primarily religion, reading, writing, and mathematics; girls learned many of the same topics as well, but a significant portion was devoted to learning needlework. These schools were intended to enrich the vocational training that girls learned, so that they could go on and earn a living. According to Crowston, the most important religious community that offered such training were the Filles de Saint-Agnès, which offered instruction in four trades: linen work, embroidery, lace, and tapestry-making. The school provided all of the tools necessary for girls to learn, and also allowed students to choose which best suited them. Although this was far different than the model of apprenticeship practiced by guilds, the sisters referred to their students as apprentices. In July 1706, a group of women, members of the Parisian wigmakers, went to Versailles in order to petition Louis XIV to remove a stifling tax that had been levied on wigs that same year. The tax was removed in mid-July 1706 although historians don't believe that the guildswomen were the sole reason as to why. Due to the political, legislative, and social power of many guilds during the medieval and early modern periods, any economic activity that encroached on guild purview was considered criminal activity. The black market was used to get around regulations set by the guild for membership, for the goods they produced, and to circumvent expensive fees and taxes that may be imposed by governments. Illegal work did not pass unnoticed by authorities at the time, and are documented by police reports and guild complaints. Guild officers were able to arrest people who were working in the trade without guild credentials, and could use municipal law enforcement to aid them in the arrest. Guilds often did take people to court for illegal work. In 18th c. Lyon, about half of the defendants were men, and half were women. Daryl Hafter notes that many of the female defendants were practicing trades where they were either completely barred from guild membership, or had austere restrictions within the guild. As joining a guild was expensive, this explains why poorer men would turn to illicit craft. Clandestine artisans were seen as a severe encroachment on guild rights, liberties, and exclusivity. Many guilds feared that this would affect economic stability. In Paris, the Barber-Wigmaker & Bath Provider Guild struggled against illicit wigmaking and styling. In this case, illicit wigmaking flourished in order to circumvent the expensive wig tax. Women and girls could enter this guild. Illicit wigmakers operated throughout the 18th c., and made continuous contributions to the industry. Judith Coffin posits that the number of clandestine linen drapers, seamstresses, and tailors, kept pace and probably outstripped the numbers from those guilds. Clandestine workers, male and female, worked in garret shops and rooms under guild jurisdiction. Not all non-guild work was illegal, too. A non-guild artisan could work directly for the crown, or in the "free zones" that were beyond the reach of the guild officers. Clandestine workers in the needle trade were often employed by larger merchant manufacturers. Guild members were also enmeshed in illegal labor, either carrying it out, or hiring those who did illegal work. Nearly everyone was in violation of guild statutes. Masters of the guild would often hire illegal workers to do specific and low-paying parts of the job. In the case of the Wigmakers, it was hair-weaving, the most labor-intensive aspect of the craft. Hair weavers arranged pinches of hair side by side and interlaced them in intricate patterns between six silk threads extended on two wooden rods. Women called tresseuses seemed to perform a substantial amount of this work outside masters' shops. Despite the guilds' fear of illegal craft, underground business often helped guilds survive. The creation of materials was often illicit, or outsourced from other locales. Masters hired non-guild workers to do high-intensive tasks and paid less, while at the same time denigrating their work. In many cities, guild masters purchased discounted materials and hired cheap labor to reduce costs. In Lyon, the underground silk economy thrived, and was a significant portion of the economy. It was made up of mostly female artisans whose work paralleled that of the legitimate trade. The female artisans were important to the guild as they were highly skilled in craft procedures that the guild heavily relied upon, and were essential to production. But they also worked for male entrepreneurs outside of the guild and frequently collaborated with each other to set up their own businesses. In an effort to curb this illicit activity, guildmasters wrote bylaws forbidding men and women to work outside of the guild. The buttonmakers guild of Lyon also complained about illicit work and theft from the non-guild female workers whom they hired. They also took it upon themselves to teach girls the buttonmaking trade, which was the real problem, as their instruction imparted the "mystery" of guild secrets to non-guild members which undermined the guild. In the mid-17th c., Lübeck experienced political conflicts as guilds petitioned the councils to ban clandestine work not only in the city but in rural areas. They were outraged that members of the upperclass in Lübeck would employ rural craftsmen at the expense of the city guild. Part of their anger surrounded the fact that some were part of the council who had sworn to uphold the guild. Early modern Lyon continued to have a thriving underground economy into the late 18th century. In 1780, the hatters' guild complained that women and girls who sheared skins for the industry had established an underground manufacture 25 years earlier, and that it was still sustained. These women were the wives of hatters or girls who were hired day by day, and who were not content to be so dependent on the guild. The women were accused of theft of materials, buying stolen materials for cheap, and selling them for larger amounts. What was most surprising was the response from the government, which had previously always stood with guilds even at the economy's expense. A royal edict of 1777 formed a legitimate corps of these female workers, giving them legitimacy. Professional organizations replicate guild structure and operation. Professions such as architecture, engineering, geology, and land surveying require varying lengths of apprenticeships before one can gain a "professional" certification. These certifications hold great legal weight: most states make them a prerequisite to practising there. Though most guilds died off by the middle of the nineteenth century, quasi-guilds persist today, primarily in the fields of law, medicine, engineering, and academia. Paralleling or soon after the fall of guilds in Britain and in the United States professional associations began to form. In America a number of interested parties sought to emulate the model of apprenticeship which European guilds of the Middle Ages had honed to achieve their ends of establishing exclusivity in trades as well as the English concept of a gentleman which had come to be associated with higher income and craftsmanship Licensing and accreditation practices which typically result from the lobbying of professional associations constitute the modern equivalent of a 'guild-privelge', albeit in contrast to guilds of the Middle Ages which held a letters patent which explicitly granted them monopolies on the provision of services, today's quasi-guild privileges are subtler, more complex, and less directly restrictive to consumers in their nature. Nevertheless, it can be argued quasi-guild privileges are in many cases designed not just to serve some notion of public good, but to facilitate the establishing and maintaining of exclusivity in a field of work. There are often subtle dichotomies present in attempting to answer the question of whether modern licensing and accreditation practices are intended to serve the public good, however it be defined. For medieval guilds this dichotomy is exemplified by differing explanations of the same phenomena; of limiting work hours among guild members. Sheilagh Ogilvie argues that this was intended to mitigate competition among guild members, while Dorothy Terry argues this was to prevent guild members from working late into the night while tired and when lighting is poor and therefore producing low quality work. In modern times, while licensing practices are usually argued to in some way protect members of the public (e.g. by ensuring quality standards), it usually can also be argued that these practices have been engineered to limit the number of 'outsiders' who gain entrance to a given field. As argued by Paul Starr and Ronald Hamowy, both of whose focus is on the development of medicine in America, the tying of medical licensing practices to universities was a process intended to do more than protect the public from 'quackery', but was engineered to be unnecessarily prolonged, inefficient, and a costly process so as to deter 'outsiders' from getting into the field, thereby enhancing the prestige and earning power of medical professionals. The university system in general continues to serve as a basis upon which modern quasi-guilds operate in the form of professionalism. 'Universitas' in the Middle Ages meant a society of masters who had the capacity for self-governance, and this term was adopted by students and teachers who came together in the twelfth century to form scholars guilds. Though guilds mostly died off by the middle of the nineteenth century, the scholars guild persisted due to its peripheral nature to an industrialized economy. In the words of Elliot Krause, "The university and scholars' guilds held onto their power over membership, training, and workplace because early capitalism was not interested in it (there was no product that the capitalist wished to produce)...the cultural prestige of knowledge itself helped keep the scholars' guild and the university alive while all other guilds failed." - Elliot Krause, The Death of Guilds (1996) Though in theory anyone can start a college, the 'privilege' in this case is the linking of federal aid to accreditation. While accreditation of a university is entirely optional, attending an accredited university is a prerequisite to receiving federal aid, and this has a powerful influence on limiting consumer options in the field of education as it provides a mechanism to limit entrepreneurial 'outsiders' from entering the field of education. George Leef and Roxana Burris study the accreditation system for which they observe is 'highly collegial' and potentially bias in the fact that accreditation review is performed by members of schools who will in turn be reviewed by many of the same people who they have reviewed. They further question the effectiveness of the methods involved in accreditation, "Although accreditation is usually justified as a means of giving students and parents an assurance of educational quality, it is important to note that the accreditors do not endeavor to assess the quality of individual programs or departments.... The accreditation system is not based on an evaluation of the results of an institution, but rather upon an evaluation of its inputs and processes. If the inputs and processes look good, acceptable educational quality is assumed. It is as if an organization decided which automobiles would be allowed to be sold by checking to make sure that each car model had tires, doors, an engine and so forth and had been assembled by workers with proper training—but without actually driving any cars" - George C. Leef and Roxana D. Burris, Can College Accreditation Live Up To Its Promise? Taken in the context of guilds, it can be argued that the purpose of accreditation is to provide a mechanism for members of the scholars guild to protect itself, both by limiting outsiders from entering the field and by enforcing established norms onto one another. Contriving means to limit the number of outsiders who gain an entrance to a field (exclusivity) and to enforce work norms among members were both distinguishing feature of guilds in the Middle Ages. In 1998, Thomas W. Malone championed a modern variant of the guild structure for independent contractors and remote workers. Insurance including any professional legal liability, intellectual capital protections, an ethical code perhaps enforced by peer pressure and software, and other benefits of a strong association of producers of knowledge, benefit from economies of scale, and may prevent cut-throat competition that leads to inferior services undercutting prices. As with historical guilds, such a structure will resist foreign competition. The open-source-software movement has from time to time explored a guild-like structure to unite against competition from Microsoft, e.g. Advogato assigns journeyer and master ranks to those committing to work only or mostly on free software. Patents loosely serve as a form of guild privilege in that they restrict potential newcomers to a field of service. The idea of a patent being applied to intangibles (e.g. intellectual patents) has been called to question by various authors. In Capital and Ideology (2000) Thomas Picketty questions the validity of patents being granted to agricultural corporations who claim to have 'invented' certain GMO seeds. According to Picketty, the falsity of such claims is that the specific breakthrough which allowed for the development of these GMO seeds was in fact only the end outcome of generations of public investment in education and research. In many European countries, guilds have experienced a revival as local trade organizations for craftsmen, primarily in traditional skills. They may function as forums for developing competence and are often the local units of a national employer's organisation. In the City of London, the ancient guilds survive as livery companies, all of which play a ceremonial role in the city's many customs. The City of London livery companies maintain strong links with their respective trade, craft or profession, some still retain regulatory, inspection or enforcement roles. The senior members of the City of London Livery Companies (known as liverymen) elect the sheriffs and approve the candidates for the office of Lord Mayor of London. Guilds also survive in many other towns and cities the UK including in Preston, Lancashire, as the Preston Guild Merchant where among other celebrations descendants of burgesses are still admitted into membership. With the City of London livery companies, the UK has over 300 extant guilds and growing. In 1878, the London livery companies established the City and Guilds of London Institute the forerunner of the engineering school (still called City and Guilds College) at Imperial College London. The aim of the City and Guilds of London Institute was the advancement of technical education. "City and Guilds" operates as an examining and accreditation body for vocational, managerial and engineering qualifications from entry-level craft and trade skills up to post-doctoral achievement. A separate organisation, the City and Guilds of London Art School has also close ties with the London livery companies and is involved in the training of master craftworkers in stone and wood carving, as well as fine artists. In Germany, there are no longer any Zünfte (or Gilden – the terms used were rather different from town to town), nor any restriction of a craft to a privileged corporation. However, under one other of their old names albeit a less frequent one, Innungen, guilds continue to exist as private member clubs with membership limited to practitioners of particular trades or activities. These clubs are corporations under public law, albeit the membership is voluntary; the president normally comes from the ranks of master-craftsmen and is called Obermeister ("master-in-chief"). Journeymen elect their own representative bodies, with their president having the traditional title of Altgesell (senior journeyman). There are also "craft chambers" (Handwerkskammern), which have less resemblance to ancient guilds in that they are organized for all crafts in a certain region, not just one. In them membership is mandatory, and they serve to establish self-governance of the crafts. Guilds were abolished in France during the French Revolution. Following a decree of 4 August 1789, they survived until March 1791 when they were finally abolished. India's guilds include the Students Guild, Indian Engineers Guild, and the Safety Guild. Other professional associations include the Indian medical Association, Indian Engineers, Indian Dental Association, United nurses Association, etc. Most of them use Union, Association or Society as suffix. In the United States guilds exist in several fields. Often, they are better characterized as a labor union — for example, The Newspaper Guild is a labor union for journalists and other newspaper workers, with over 30,000 members in North America. In the film and television industry, guild membership is generally a prerequisite for working on major productions in certain capacities. The Screen Actors Guild, Directors Guild of America, Writers Guild of America, East, Writers Guild of America, West and other profession-specific guilds have the ability to exercise strong control in the cinema of the United States as a result of a rigid system of intellectual-property rights and a history of power-brokers also holding guild membership (e.g., DreamWorks Pictures founder Steven Spielberg was, and is, a DGA member). These guilds maintain their own contracts with production companies to ensure a certain number of their members are hired for roles in each film or television production, and that their members are paid a minimum of guild "scale," along with other labor protections. These guilds set high standards for membership, and exclude professional actors, writers, etc. who do not abide by the strict rules for competing within the film and television industry in America. Real-estate brokerage offers an example of a modern American guild system. Signs of guild behavior in real-estate brokerage include: standard pricing (6% of the home price), strong affiliation among all practitioners, self-regulation (see National Association of Realtors), strong cultural identity (the Realtor brand), little price variation with quality differences, and traditional methods in use by all practitioners. In September 2005 the U.S. Department of Justice filed an antitrust lawsuit against the National Association of Realtors, challenging NAR practices that (the DOJ asserted) prevent competition from practitioners who use different methods. The DOJ and the Federal Trade Commission in 2005 advocated against state laws, supported by NAR, that disadvantage new kinds of brokers. U.S. v. National Assoc. of Realtors, Civil Action No. 05C-5140 (N.D. Ill. Sept. 7, 2005). The practice of law in the United States also exemplifies modern guilds at work. Every state maintains its own bar association, supervised by that state's highest court. The court decides the criteria for entering and staying in the legal profession. In most states, every attorney must become a member of that state's bar association in order to practice law. State laws forbid any person from engaging in the unauthorized practice of law and practicing attorneys are subject to rules of professional conduct that are enforced by the state's supreme court. Medical associations comparable to guilds include the state Medical Boards, the American Medical Association, and the American Dental Association. Medical licensing in most states requires specific training, tests and years of low-paid apprenticeship (internship and residency) under harsh working conditions. Even qualified international or out-of-state doctors may not practice without acceptance by the local medical guild (Medical board). Similarly, nurses and physicians' practitioners have their own guilds. A doctor cannot work as a physician's assistant unless (s)he separately trains, tests and apprentices as one. Australia has several guilds. The most notable of these is The Pharmacy Guild of Australia, created in 1927 as the Federated Pharmaceutical Services Guild of Australia. The Pharmacy Guild serves "6,000 community pharmacies," while also providing training and standards for the country's pharmacists. Australia's other guilds include the Australian Directors Guild, representing the country's directors, documentary makers and animators, the Australian Writers' Guild, the Australian Butcher's Guild, a fraternity of independent butchers which provides links to resources like Australian meat standards and a guide to different beef cuts, and The Artists Guild, a craft guild focusing on female artists.
[ { "paragraph_id": 0, "text": "A guild (/ɡɪld/ GILD) is an association of artisans and merchants who oversee the practice of their craft/trade in a particular territory. The earliest types of guild formed as organizations of tradespeople belonging to a professional association. They sometimes depended on grants of letters patent from a monarch or other ruler to enforce the flow of trade to their self-employed members, and to retain ownership of tools and the supply of materials, but most were regulated by the local government. Guild members found guilty of cheating the public would be fined or banned from the guild. A lasting legacy of traditional guilds are the guildhalls constructed and used as guild meeting-places.", "title": "" }, { "paragraph_id": 1, "text": "Typically the key \"privilege\" was that only guild members were allowed to sell their goods or practice their skill within the city. There might be controls on minimum or maximum prices, hours of trading, numbers of apprentices, and many other things. Critics argued that these rules reduced free competition, but defenders maintained that they protected professional standards.", "title": "" }, { "paragraph_id": 2, "text": "An important result of the guild framework was the emergence of universities at Bologna (established in 1088), Oxford (at least since 1096) and Paris (c. 1150); they originated as guilds of students (as at Bologna) or of masters (as at Paris).", "title": "" }, { "paragraph_id": 3, "text": "Naram-Sin of Akkad (c. 2254–2218 BC), grandson of Sargon of Akkad who had unified Sumeria and Assyria into the Akkadian Empire, promulgated common Mesopotamian standards for length, area, volume, weight, time, and shekels, which were used by artisan guilds in each city. Code of Hammurabi Law 234 (c. 1755–1750 BC) stipulated a 2-shekel wage for each 60-gur (300-bushel) vessel constructed in an employment contract between a shipbuilder and a ship-owner. Law 275 stipulated a ferry rate of 3-gerah per day on a charterparty between a ship charterer and a shipmaster. Law 276 stipulated a 21⁄2-gerah per day freight rate on a contract of affreightment between a charterer and shipmaster, while Law 277 stipulated a 1⁄6-shekel per day freight rate for a 60-gur vessel.", "title": "History of guilds" }, { "paragraph_id": 4, "text": "A type of guild was known in Roman times. Known as collegium, collegia or corpus, these were organised groups of merchants who specialised in a particular craft and whose membership of the group was voluntary. One such example is the corpus naviculariorum, a collegium of merchant mariners based at Rome's La Ostia port. The Roman guilds failed to survive the collapse of the Roman Empire.", "title": "History of guilds" }, { "paragraph_id": 5, "text": "A collegium was any association or corporation that acted as a legal entity. In 1816, an archeological excavation in Minya, Egypt produced a Nerva–Antonine dynasty-era (second-century AD) clay tablet from the ruins of the Temple of Antinous in Antinoöpolis, Aegyptus that prescribed the rules and membership dues of a burial society collegium established in Lanuvium, Italia in approximately 133 AD. Following the passage of the Lex Julia in 45 BC, and its reaffirmation during the reign of Caesar Augustus (27 BC–14 AD), collegia required the approval of the Roman Senate or the emperor in order to be authorized as legal bodies. Ruins at Lambaesis date the formation of burial societies among Roman soldiers and mariners to the reign of Septimius Severus (193–211) in 198 AD. In September 2011, archeological investigations done at the site of an artificial harbor in Rome, the Portus, revealed inscriptions in a shipyard constructed during the reign of Trajan (98–117) indicating the existence of a shipbuilders guild. Collegia also included fraternities of priests overseeing sacrifices, practicing augury, keeping religious texts, arranging festivals, and maintaining specific religious cults.", "title": "History of guilds" }, { "paragraph_id": 6, "text": "There were several types of guilds, including the two main categories of merchant guilds and craft guilds but also the frith guild and religious guild. Guilds arose beginning in the High Middle Ages as craftsmen united to protect their common interests. In the German city of Augsburg craft guilds are mentioned in the Towncharter of 1156.", "title": "History of guilds" }, { "paragraph_id": 7, "text": "The continental system of guilds and merchants arrived in England after the Norman Conquest, with incorporated societies of merchants in each town or city holding exclusive rights of doing business there. In many cases they became the governing body of a town. For example, London's Guildhall became the seat of the Court of Common Council of the City of London Corporation, the world's oldest continuously elected local government, whose members to this day must be Freemen of the city. The Freedom of the City, effective from the Middle Ages until 1835, gave the right to trade, and was only bestowed upon members of a Guild or Livery.", "title": "History of guilds" }, { "paragraph_id": 8, "text": "Early egalitarian communities called \"guilds\" were denounced by Catholic clergy for their \"conjurations\" — the binding oaths sworn among the members to support one another in adversity, kill specific enemies, and back one another in feuds or in business ventures. The occasion for these oaths were drunken banquets held on December 26. In 858, West Francian Bishop Hincmar sought vainly to Christianise the guilds.", "title": "History of guilds" }, { "paragraph_id": 9, "text": "In the Early Middle Ages, most of the Roman craft organisations, originally formed as religious confraternities, had disappeared, with the apparent exceptions of stonecutters and perhaps glassmakers, mostly the people that had local skills. Gregory of Tours tells a miraculous tale of a builder whose art and techniques suddenly left him, but were restored by an apparition of the Virgin Mary in a dream. Michel Rouche remarks that the story speaks for the importance of practically transmitted journeymanship.", "title": "History of guilds" }, { "paragraph_id": 10, "text": "In France, guilds were called corps de métiers. According to Viktor Ivanovich Rutenburg, \"Within the guild itself there was very little division of labour, which tended to operate rather between the guilds. Thus, according to Étienne Boileau's Book of Handicrafts, by the mid-13th century there were no less than 100 guilds in Paris, a figure which by the 14th century had risen to 350.\" There were different guilds of metal-workers: the farriers, knife-makers, locksmiths, chain-forgers, nail-makers, often formed separate and distinct corporations; the armourers were divided into helmet-makers, escutcheon-makers, harness-makers, harness-polishers, etc. In Catalan towns, especially at Barcelona, guilds or gremis were a basic agent in the society: a shoemakers' guild is recorded in 1208.", "title": "History of guilds" }, { "paragraph_id": 11, "text": "In England, specifically in the City of London Corporation, more than 110 guilds, referred to as livery companies, survive today, with the oldest 868 years old. Other groups, such as the Worshipful Company of Tax Advisers, have been formed far more recently. Membership in a livery company is expected for individuals participating in the governance of The City, as the Lord Mayor and the Remembrancer.", "title": "History of guilds" }, { "paragraph_id": 12, "text": "The guild system reached a mature state in Germany c. 1300 and held on in German cities into the 19th century, with some special privileges for certain occupations remaining today. In the 15th century, Hamburg had 100 guilds, Cologne 80, and Lübeck 70. The latest guilds to develop in Western Europe were the gremios of Spain: e.g., Valencia (1332) or Toledo (1426).", "title": "History of guilds" }, { "paragraph_id": 13, "text": "Not all city economies were controlled by guilds; some cities were \"free.\" Where guilds were in control, they shaped labor, production and trade; they had strong controls over instructional capital, and the modern concepts of a lifetime progression of apprentice to craftsman, and then from journeyman eventually to widely recognized master and grandmaster began to emerge. In order to become a master, a journeyman would have to go on a three-year voyage called journeyman years. The practice of the journeyman years still exists in Germany and France.", "title": "History of guilds" }, { "paragraph_id": 14, "text": "As production became more specialized, trade guilds were divided and subdivided, eliciting the squabbles over jurisdiction that produced the paperwork by which economic historians trace their development: The metalworking guilds of Nuremberg were divided among dozens of independent trades in the boom economy of the 13th century, and there were 101 trades in Paris by 1260. In Ghent, as in Florence, the woolen textile industry developed as a congeries of specialized guilds. The appearance of the European guilds was tied to the emergent money economy, and to urbanization. Before this time it was not possible to run a money-driven organization, as commodity money was the normal way of doing business.", "title": "History of guilds" }, { "paragraph_id": 15, "text": "The guild was at the center of European handicraft organization into the 16th century. In France, a resurgence of the guilds in the second half of the 17th century is symptomatic of Louis XIV and Jean Baptiste Colbert's administration's concerns to impose unity, control production, and reap the benefits of transparent structure in the shape of efficient taxation.", "title": "History of guilds" }, { "paragraph_id": 16, "text": "The guilds were identified with organizations enjoying certain privileges (letters patent), usually issued by the king or state and overseen by local town business authorities (some kind of chamber of commerce). These were the predecessors of the modern patent and trademark system. The guilds also maintained funds in order to support infirm or elderly members, as well as widows and orphans of guild members, funeral benefits, and a 'tramping' allowance for those needing to travel to find work. As the guild system of the City of London declined during the 17th century, the Livery Companies transformed into mutual assistance fraternities along such lines.", "title": "History of guilds" }, { "paragraph_id": 17, "text": "European guilds imposed long standardized periods of apprenticeship, and made it difficult for those lacking the capital to set up for themselves or without the approval of their peers to gain access to materials or knowledge, or to sell into certain markets, an area that equally dominated the guilds' concerns. These are defining characteristics of mercantilism in economics, which dominated most European thinking about political economy until the rise of classical economics.", "title": "History of guilds" }, { "paragraph_id": 18, "text": "The guild system survived the emergence of early capitalists, which began to divide guild members into \"haves\" and dependent \"have-nots\". The civil struggles that characterize the 14th-century towns and cities were struggles in part between the greater guilds and the lesser artisanal guilds, which depended on piecework. \"In Florence, they were openly distinguished: the Arti maggiori and the Arti minori—already there was a popolo grasso and a popolo magro\". Fiercer struggles were those between essentially conservative guilds and the merchant class, which increasingly came to control the means of production and the capital that could be ventured in expansive schemes, often under the rules of guilds of their own. German social historians trace the Zunftrevolution, the urban revolution of guildmembers against a controlling urban patriciate, sometimes reading into them, however, perceived foretastes of the class struggles of the 19th century.", "title": "History of guilds" }, { "paragraph_id": 19, "text": "In the countryside, where guild rules did not operate, there was freedom for the entrepreneur with capital to organize cottage industry, a network of cottagers who spun and wove in their own premises on his account, provided with their raw materials, perhaps even their looms, by the capitalist who took a share of the profits. Such a dispersed system could not so easily be controlled where there was a vigorous local market for the raw materials: wool was easily available in sheep-rearing regions, whereas silk was not.", "title": "History of guilds" }, { "paragraph_id": 20, "text": "In Florence, Italy, there were seven to twelve \"greater guilds\" and fourteen \"lesser guilds\". The most important of the greater guilds was that for judges and notaries, who handled the legal business of all the other guilds and often served as an arbitrator of disputes. Other greater guilds include the wool, silk, and the money changers' guilds. They prided themselves on a reputation for very high-quality work, which was rewarded with premium prices. The guilds fined members who deviated from standards. Other greater guilds included those of doctors, druggists, and furriers. Among the lesser guilds, were those for bakers, saddle makers, ironworkers and other artisans. They had a sizable membership, but lacked the political and social standing necessary to influence city affairs.", "title": "History of guilds" }, { "paragraph_id": 21, "text": "The guild was made up by experienced and confirmed experts in their field of handicraft. They were called master craftsmen. Before a new employee could rise to the level of mastery, he had to go through a schooling period during which he was first called an apprenticeship. After this period he could rise to the level of journeyman. Apprentices would typically not learn more than the most basic techniques until they were trusted by their peers to keep the guild's or company's secrets.", "title": "History of guilds" }, { "paragraph_id": 22, "text": "Like journey, the distance that could be travelled in a day, the title 'journeyman' derives from the French words for 'day' (jour and journée) from which came the middle English word journei. Journeymen were able to work for other masters, unlike apprentices, and generally paid by the day and were thus day labourers. After being employed by a master for several years, and after producing a qualifying piece of work, the apprentice was granted the rank of journeyman and was given documents (letters or certificates from his master and/or the guild itself) which certified him as a journeyman and entitled him to travel to other towns and countries to learn the art from other masters. These journeys could span large parts of Europe and were an unofficial way of communicating new methods and techniques, though by no means all journeymen made such travels — they were most common in Germany and Italy, and in other countries journeymen from small cities would often visit the capital.", "title": "History of guilds" }, { "paragraph_id": 23, "text": "After this journey and several years of experience, a journeyman could be received as master craftsman, though in some guilds this step could be made straight from apprentice. This would typically require the approval of all masters of a guild, a donation of money and other goods (often omitted for sons of existing members), and the production of a so-called \"masterpiece\", which would illustrate the abilities of the aspiring master craftsman; this was often retained by the guild.", "title": "History of guilds" }, { "paragraph_id": 24, "text": "The medieval guild was established by charters or letters patent or similar authority by the city or the ruler and normally held a monopoly on trade in its craft within the city in which it operated: handicraft workers were forbidden by law to run any business if they were not members of a guild, and only masters were allowed to be members of a guild. Before these privileges were legislated, these groups of handicraft workers were simply called 'handicraft associations'.", "title": "History of guilds" }, { "paragraph_id": 25, "text": "The town authorities might be represented in the guild meetings and thus had a means of controlling the handicraft activities. This was important since towns very often depended on a good reputation for export of a narrow range of products, on which not only the guild's, but the town's, reputation depended. Controls on the association of physical locations to well-known exported products, e.g. wine from the Champagne and Bordeaux regions of France, tin-glazed earthenwares from certain cities in Holland, lace from Chantilly, etc., helped to establish a town's place in global commerce — this led to modern trademarks.", "title": "History of guilds" }, { "paragraph_id": 26, "text": "In many German and Italian cities, the more powerful guilds often had considerable political influence, and sometimes attempted to control the city authorities. In the 14th century, this led to numerous bloody uprisings, during which the guilds dissolved town councils and detained patricians in an attempt to increase their influence. In fourteenth-century north-east Germany, people of Wendish, i.e. Slavic, origin were not allowed to join some guilds. According to Wilhelm Raabe, \"down into the eighteenth century no German guild accepted a Wend.\"", "title": "History of guilds" }, { "paragraph_id": 27, "text": "In the Russian Empire, from the reform of Peter the Great (beginning of the 17th century) until 1917, these were corporations of wealthy merchants, with their own rights. They therefore constituted an Order which was divided, according to property, into three classes: merchant of the first Guild, of the second Guild, and of the third Guild and was transmissible hereditarily.", "title": "History of guilds" }, { "paragraph_id": 28, "text": "Ogilvie (2004) argues that guilds negatively affected quality, skills, and innovation. Through what economists now call \"rent-seeking\" they imposed deadweight losses on the economy. Ogilvie argues they generated limited positive externalities and notes that industry began to flourish only after the guilds faded away. Guilds persisted over the centuries because they redistributed resources to politically powerful merchants. On the other hand, Ogilvie agrees, guilds created \"social capital\" of shared norms, common information, mutual sanctions, and collective political action. This social capital benefited guild members, even as it arguably hurt outsiders.", "title": "History of guilds" }, { "paragraph_id": 29, "text": "The guild system became a target of much criticism towards the end of the 18th century and the beginning of the 19th century. Critics argued that they hindered free trade and technological innovation, technology transfer and business development. According to several accounts of this time, guilds became increasingly involved in simple territorial struggles against each other and against free practitioners of their arts.", "title": "History of guilds" }, { "paragraph_id": 30, "text": "Two of the most outspoken critics of the guild system were Jean-Jacques Rousseau and Adam Smith, and all over Europe a tendency to oppose government control over trades in favour of laissez-faire free market systems grew rapidly and made its way into the political and legal systems. Many people who participated in the French Revolution saw guilds as a last remnant of feudalism. The d'Allarde Law of 2 March 1791 suppressed the guilds in France. In 1803 the Napoleonic Code banned any coalition of workmen whatsoever. Smith wrote in The Wealth of Nations (Book I, Chapter X, paragraph 72):", "title": "History of guilds" }, { "paragraph_id": 31, "text": "It is to prevent this reduction of price, and consequently of wages and profit, by restraining that free competition which would most certainly occasion it, that all corporations, and the greater part of corporation laws, have been established. (...) and when any particular class of artificers or traders thought proper to act as a corporation without a charter, such adulterine guilds, as they were called, were not always disfranchised upon that account, but obliged to fine annually to the king for permission to exercise their usurped privileges.", "title": "History of guilds" }, { "paragraph_id": 32, "text": "Karl Marx in his Communist Manifesto also criticized the guild system for its rigid gradation of social rank and what he saw as the relation of oppressor and oppressed entailed by this system. It was the 18th and 19th centuries that saw the beginning of the low regard in which some people hold the guilds to this day. In part due to their own inability to control unruly corporate behavior, the tide of public opinion turned against the guilds.", "title": "History of guilds" }, { "paragraph_id": 33, "text": "Because of industrialization and modernization of the trade and industry, and the rise of powerful nation-states that could directly issue patent and copyright protections — often revealing the trade secrets — the guilds' power faded. After the French Revolution they gradually fell in most European nations over the course of the 19th century, as the guild system was disbanded and replaced by laws that promoted free trade. As a consequence of the decline of guilds, many former handicraft workers were forced to seek employment in the emerging manufacturing industries, using not closely guarded techniques formerly protected by guilds, but rather the standardized methods controlled by corporations. Interest in the medieval guild system was revived during the late 19th century, among far-right circles. Fascism in Italy (among other countries) implemented corporatism, operating at the national rather than city level, to try to imitate the corporatism of the Middle Ages.", "title": "History of guilds" }, { "paragraph_id": 34, "text": "Guilds are sometimes said to be the precursors of modern cartels. Guilds, however, can also be seen as a set of self-employed skilled craftsmen with ownership and control over the materials and tools they needed to produce their goods. Some argue that guilds operated more like cartels than they were like trade unions (Olson 1982). However, the journeymen organizations, which were at the time illegal, may have been influential.", "title": "History of guilds" }, { "paragraph_id": 35, "text": "The exclusive privilege of a guild to produce certain goods or provide certain services was similar in spirit and character to the original patent systems that surfaced in England in 1624. These systems played a role in ending the guilds' dominance, as trade secret methods were superseded by modern firms directly revealing their techniques, and counting on the state to enforce their legal monopoly.", "title": "History of guilds" }, { "paragraph_id": 36, "text": "Some guild traditions still remain in a few handicrafts, in Europe especially among shoemakers and barbers. These are, however, not very important economically except as reminders of the responsibilities of some trades toward the public.", "title": "History of guilds" }, { "paragraph_id": 37, "text": "Modern antitrust law could be said to derive in some ways from the original statutes by which the guilds were abolished in Europe.", "title": "History of guilds" }, { "paragraph_id": 38, "text": "The economic consequences of guilds have led to heated debates among economic historians. On the one side, scholars say that since merchant guilds persisted over long periods they must have been efficient institutions (since inefficient institutions die out). Others say they persisted not because they benefited the entire economy but because they benefited the owners, who used political power to protect them. Ogilvie (2011) says they regulated trade for their own benefit, were monopolies, distorted markets, fixed prices, and restricted entrance into the guild. Ogilvie (2008) argues that their long apprenticeships were unnecessary to acquire skills, and their conservatism reduced the rate of innovation and made the society poorer. She says their main goal was rent seeking, that is, to shift money to the membership at the expense of the entire economy.", "title": "History of guilds" }, { "paragraph_id": 39, "text": "Epstein and Prak's book (2008) rejects Ogilvie's conclusions. Specifically, Epstein argues that guilds were cost-sharing rather than rent-seeking institutions. They located and matched masters and likely apprentices through monitored learning. Whereas the acquisition of craft skills required experience-based learning, he argues that this process necessitated many years in apprenticeship.", "title": "History of guilds" }, { "paragraph_id": 40, "text": "The extent to which guilds were able to monopolize markets is also debated.", "title": "History of guilds" }, { "paragraph_id": 41, "text": "Guilds were often heavily concerned with product quality. The regulations they established on their own members' work, as well as targeting non-guild members for illicit practice, was to create a standard of work that the consumer could rely on. They were heavily concerned with public perception. In October 1712, the Lyon Wigmaker Guild petitioned the local police magistrates. According to this petition, guildmasters required guild officers to step up policing of statutes forbidding the use of bleached hair or wild goat and lamb hair. The real concern that they had was that bleaching hair destroyed the quality of the wig, making it too thin to style. Guild officers pointed out that if the consumer discovers the bad quality, the guild would be blamed, and the consumer would search elsewhere to purchase goods.", "title": "History of guilds" }, { "paragraph_id": 42, "text": "Women's participation within medieval guilds was complex and varied. On one hand, guild membership allowed women to participate in the economy that provided social privilege and community. On the other hand, most trade and craft guilds were male-dominated and frequently limited women's rights if they were members, or did not allow membership at all. The most common way women obtained guild membership was through marriage. Usually only the widows and daughters of known masters were allowed in. Even if a woman entered a guild, she was excluded from guild offices. It's important to note that while this was the overarching practice, there were guilds and professions that did allow women's participation, and that the Medieval era was an ever-changing, mutable society—especially considering that it spanned hundreds of years and many different cultures. There were multiple accounts of women's participation in guilds in England and the Continent. In a study of London silkwomen of the 15th century by Marian K. Dale, she notes that medieval women could inherit property, belong to guilds, manage estates, and run the family business if widowed. The Livre des métiers de Paris (Book of Trades of Paris) was compiled by Étienne Boileau, the Grand Provost of Paris under King Louis IX. It documents that 5 out of 110 Parisian guilds were female monopolies, and that only a few guilds systematically excluded women. Boileau notes that some professions were also open to women: surgeons, glass-blowers, chain-mail forgers. Entertainment guilds also had a significant number of women members. John, Duke of Berry documents payments to female musicians from Le Puy, Lyons, and Paris. In Rouen women had participated as full-fledged masters in 7 of the city's 112 guilds since the 13th century. There were still many restrictions. Medieval Parisian guilds did not offer women independent control of their work.", "title": "History of guilds" }, { "paragraph_id": 43, "text": "Women did have problems with entering healers' guilds, as opposed to their relative freedom in trade or craft guilds. Their status in healers' guilds were often challenged. The idea that medicine should only be practiced by men was supported by some religious and secular authorities at the time. It is believed that the Inquisition and witch hunts throughout the ages contributed to the lack of women in medical guilds.", "title": "History of guilds" }, { "paragraph_id": 44, "text": "In medieval Cologne there were three guilds that were composed almost entirely of women, the yarn-spinners, gold-spinners, and silk-weavers. Men could join these guilds, but were almost exclusively married to guildswomen. This was a required regulation of the yarn-spinners guild. The guildswomen of the gold-spinners guild were often wives of guildsmen of the gold-smiths. This type of unity between husband and wife was seen in women's guild participation through the medieval and early modern periods; in order to avoid unpleasant litigation or legal situations, the trades of husband and wife often were the same or complementary. Women were not restricted to solely textile guilds in medieval Cologne, and neither did they have total freedom in all textile guilds. They had limited participation in the guilds of dyers, cotton-weavers, and guilds in the leather industry. They did enjoy full rights in some wood-working guilds, the guilds of coopers and turners. Women also seemed to have extensively engaged in the fish trade, both within and outside of the guild. The butcher and cattle-trade guilds also listed women among their ranks. In practically all of these guilds, a widow was allowed to continue her husband's business. If she remarried to a man who was not a member, she usually lost that right.", "title": "History of guilds" }, { "paragraph_id": 45, "text": "The historian Alice Clark published a study in 1919 on women's participation in guilds during the Medieval period. She argued that the guild system empowered women to participate in family businesses. This viewpoint, among others of Clark's, has been criticized by fellow historians, and has sparked debate in scholarly circles. Clark's analysis of the period is that things change during the early modern period, specifically the 17th century, and become more stifling for women in guilds. She also posits that domestic life drove women out of guild participation.", "title": "History of guilds" }, { "paragraph_id": 46, "text": "Many historians have done research into the dwindling women's participation in guilds. Studies have provided a contradictory picture. Recent historical research is usually posed in rebuttal to Alice Clark's study on the economic marginalization of women in the 17th c., and has highlighted that domestic life did not organize women's economic activities. The research has documented women's extensive participation in market relations, craft production, and paid labor in the early modern period. Clare Crowston posits that women gained more control of their own work. In the 16th and 17th centuries, rather than losing control, female linen drapers and hemp merchants established independent guilds. In the late 17th century and onward, there was evidence of growing economic opportunities for women. Seamstresses in Paris and Rouen and flower sellers in Paris acquired their own guilds in 1675. In Dijon, the number of female artisans recorded in tax rolls rose substantially between the years of 1643 and 1750. In 18th c. Nantes, there was a significant growth in women's access to guilds, with no restrictions on their rights.", "title": "History of guilds" }, { "paragraph_id": 47, "text": "Historian Merry Wiesner attributed a decline in women's labor in south German cities from the 16th-18th centuries to both economic and cultural factors; as trades became more specialized, women's domestic responsibilities hindered them from entering the workforce. German guilds started to further regulate women's participation at this time, limiting the privileges of wives, widows, and daughters. It also forbade masters from hiring women. Crowston notes that the decline thesis has been reaffirmed in the German context by Wiesner and Ogilvie, but that it doesn't work in looking at the matter from a larger scope, as her expertise is in French history.", "title": "History of guilds" }, { "paragraph_id": 48, "text": "There were exclusively female guilds that came out of the woodwork in the 17th century, primarily Paris, Rouen, and Cologne. In 1675, Parisian seamstresses requested the guild as their trade was organized and profitable enough to support incorporation. Some of the guilds in Cologne had been made up almost entirely of women since the medieval period.", "title": "History of guilds" }, { "paragraph_id": 49, "text": "Early modern Rouen was an important center of guildswomen's activity. By 1775, there were about 700 female masters, accounting for 10% of all guild masters in the city. A survey that circulated in the late 18th century listed that the Rouen ribbonmakers had 149 masters, mistresses, and widows, indicating its mixed gendered composition. A tax roll of 1775 indicated that their total membership was about 160, with 58 men, 17 widows, 55 wives, and 30 unmarried women.", "title": "History of guilds" }, { "paragraph_id": 50, "text": "Historians have noted the essential contributions that women made to these guilds. Many scholars have asserted that it would have been impossible for male merchants and craftsmen to start a business, let alone run it, without the help of their wives.", "title": "History of guilds" }, { "paragraph_id": 51, "text": "The oldest women's guild in Paris dealt in linens, including household linens, layettes for babies, and undergarments. There seemed to be a major wealth disparity among its members. The linen workers whose sheds were at the center of Les Halles caused the guild some trouble. There was a perception that these workers also trafficked in sex as well as linens, which made the guild emphatic about its own morality. On the other end of the social divide, the linen trade was a respectable occupation for married and single women of high social standing.", "title": "History of guilds" }, { "paragraph_id": 52, "text": "In France, special provisions had to be made in order to assure that woman could move relatively freely in the textile guilds of Paris and Rouen. They used a special legal formula, the privilege of the marchande publique. This legal device made certain that a woman had the right to participate on her own behalf in the economy, and thus didn't require references to her husband's resources or possible involvement. If a woman didn't join a guild first, she was required to obtain her husband's permission in order to receive the status of marchande publique. If she did join a guild, the status was conferred automatically. The privilege of marchande publique allowed a woman to participate in business as a legal adult, sign contracts, go to court, and borrow money.", "title": "History of guilds" }, { "paragraph_id": 53, "text": "In Amsterdam, seamstresses acquired an independent guild in 1579. In several other cities of the Netherlands, they obtained subordinate positions in the tailors' guilds during the late 17th and 18th centuries.", "title": "History of guilds" }, { "paragraph_id": 54, "text": "Frenchwomen provided vocational training to apprentices. In apprenticeship contracts the names and trades of spouses would both appear. The trades were usually the same or closely related. In earlier research, lack of contracts led scholars to believe that women and girls never received official training, and instead learned their trade at home. This was debunked with Clare Crowston's research on parish schools in France. Instead of apprenticeships, girls could receive an alternative form of vocational training from these schools. Students entered at around eight for two years of education, and were segregated by gender. Boys studied primarily religion, reading, writing, and mathematics; girls learned many of the same topics as well, but a significant portion was devoted to learning needlework. These schools were intended to enrich the vocational training that girls learned, so that they could go on and earn a living. According to Crowston, the most important religious community that offered such training were the Filles de Saint-Agnès, which offered instruction in four trades: linen work, embroidery, lace, and tapestry-making. The school provided all of the tools necessary for girls to learn, and also allowed students to choose which best suited them. Although this was far different than the model of apprenticeship practiced by guilds, the sisters referred to their students as apprentices.", "title": "History of guilds" }, { "paragraph_id": 55, "text": "In July 1706, a group of women, members of the Parisian wigmakers, went to Versailles in order to petition Louis XIV to remove a stifling tax that had been levied on wigs that same year. The tax was removed in mid-July 1706 although historians don't believe that the guildswomen were the sole reason as to why.", "title": "History of guilds" }, { "paragraph_id": 56, "text": "Due to the political, legislative, and social power of many guilds during the medieval and early modern periods, any economic activity that encroached on guild purview was considered criminal activity. The black market was used to get around regulations set by the guild for membership, for the goods they produced, and to circumvent expensive fees and taxes that may be imposed by governments. Illegal work did not pass unnoticed by authorities at the time, and are documented by police reports and guild complaints. Guild officers were able to arrest people who were working in the trade without guild credentials, and could use municipal law enforcement to aid them in the arrest. Guilds often did take people to court for illegal work. In 18th c. Lyon, about half of the defendants were men, and half were women. Daryl Hafter notes that many of the female defendants were practicing trades where they were either completely barred from guild membership, or had austere restrictions within the guild. As joining a guild was expensive, this explains why poorer men would turn to illicit craft. Clandestine artisans were seen as a severe encroachment on guild rights, liberties, and exclusivity. Many guilds feared that this would affect economic stability.", "title": "History of guilds" }, { "paragraph_id": 57, "text": "In Paris, the Barber-Wigmaker & Bath Provider Guild struggled against illicit wigmaking and styling. In this case, illicit wigmaking flourished in order to circumvent the expensive wig tax. Women and girls could enter this guild. Illicit wigmakers operated throughout the 18th c., and made continuous contributions to the industry.", "title": "History of guilds" }, { "paragraph_id": 58, "text": "Judith Coffin posits that the number of clandestine linen drapers, seamstresses, and tailors, kept pace and probably outstripped the numbers from those guilds. Clandestine workers, male and female, worked in garret shops and rooms under guild jurisdiction. Not all non-guild work was illegal, too. A non-guild artisan could work directly for the crown, or in the \"free zones\" that were beyond the reach of the guild officers. Clandestine workers in the needle trade were often employed by larger merchant manufacturers. Guild members were also enmeshed in illegal labor, either carrying it out, or hiring those who did illegal work. Nearly everyone was in violation of guild statutes. Masters of the guild would often hire illegal workers to do specific and low-paying parts of the job. In the case of the Wigmakers, it was hair-weaving, the most labor-intensive aspect of the craft. Hair weavers arranged pinches of hair side by side and interlaced them in intricate patterns between six silk threads extended on two wooden rods. Women called tresseuses seemed to perform a substantial amount of this work outside masters' shops.", "title": "History of guilds" }, { "paragraph_id": 59, "text": "Despite the guilds' fear of illegal craft, underground business often helped guilds survive. The creation of materials was often illicit, or outsourced from other locales. Masters hired non-guild workers to do high-intensive tasks and paid less, while at the same time denigrating their work. In many cities, guild masters purchased discounted materials and hired cheap labor to reduce costs. In Lyon, the underground silk economy thrived, and was a significant portion of the economy. It was made up of mostly female artisans whose work paralleled that of the legitimate trade. The female artisans were important to the guild as they were highly skilled in craft procedures that the guild heavily relied upon, and were essential to production. But they also worked for male entrepreneurs outside of the guild and frequently collaborated with each other to set up their own businesses. In an effort to curb this illicit activity, guildmasters wrote bylaws forbidding men and women to work outside of the guild. The buttonmakers guild of Lyon also complained about illicit work and theft from the non-guild female workers whom they hired. They also took it upon themselves to teach girls the buttonmaking trade, which was the real problem, as their instruction imparted the \"mystery\" of guild secrets to non-guild members which undermined the guild.", "title": "History of guilds" }, { "paragraph_id": 60, "text": "In the mid-17th c., Lübeck experienced political conflicts as guilds petitioned the councils to ban clandestine work not only in the city but in rural areas. They were outraged that members of the upperclass in Lübeck would employ rural craftsmen at the expense of the city guild. Part of their anger surrounded the fact that some were part of the council who had sworn to uphold the guild.", "title": "History of guilds" }, { "paragraph_id": 61, "text": "Early modern Lyon continued to have a thriving underground economy into the late 18th century. In 1780, the hatters' guild complained that women and girls who sheared skins for the industry had established an underground manufacture 25 years earlier, and that it was still sustained. These women were the wives of hatters or girls who were hired day by day, and who were not content to be so dependent on the guild. The women were accused of theft of materials, buying stolen materials for cheap, and selling them for larger amounts. What was most surprising was the response from the government, which had previously always stood with guilds even at the economy's expense. A royal edict of 1777 formed a legitimate corps of these female workers, giving them legitimacy.", "title": "History of guilds" }, { "paragraph_id": 62, "text": "Professional organizations replicate guild structure and operation. Professions such as architecture, engineering, geology, and land surveying require varying lengths of apprenticeships before one can gain a \"professional\" certification. These certifications hold great legal weight: most states make them a prerequisite to practising there.", "title": "Modern" }, { "paragraph_id": 63, "text": "Though most guilds died off by the middle of the nineteenth century, quasi-guilds persist today, primarily in the fields of law, medicine, engineering, and academia. Paralleling or soon after the fall of guilds in Britain and in the United States professional associations began to form. In America a number of interested parties sought to emulate the model of apprenticeship which European guilds of the Middle Ages had honed to achieve their ends of establishing exclusivity in trades as well as the English concept of a gentleman which had come to be associated with higher income and craftsmanship", "title": "Modern" }, { "paragraph_id": 64, "text": "Licensing and accreditation practices which typically result from the lobbying of professional associations constitute the modern equivalent of a 'guild-privelge', albeit in contrast to guilds of the Middle Ages which held a letters patent which explicitly granted them monopolies on the provision of services, today's quasi-guild privileges are subtler, more complex, and less directly restrictive to consumers in their nature.", "title": "Modern" }, { "paragraph_id": 65, "text": "Nevertheless, it can be argued quasi-guild privileges are in many cases designed not just to serve some notion of public good, but to facilitate the establishing and maintaining of exclusivity in a field of work.", "title": "Modern" }, { "paragraph_id": 66, "text": "There are often subtle dichotomies present in attempting to answer the question of whether modern licensing and accreditation practices are intended to serve the public good, however it be defined. For medieval guilds this dichotomy is exemplified by differing explanations of the same phenomena; of limiting work hours among guild members. Sheilagh Ogilvie argues that this was intended to mitigate competition among guild members, while Dorothy Terry argues this was to prevent guild members from working late into the night while tired and when lighting is poor and therefore producing low quality work. In modern times, while licensing practices are usually argued to in some way protect members of the public (e.g. by ensuring quality standards), it usually can also be argued that these practices have been engineered to limit the number of 'outsiders' who gain entrance to a given field.", "title": "Modern" }, { "paragraph_id": 67, "text": "As argued by Paul Starr and Ronald Hamowy, both of whose focus is on the development of medicine in America, the tying of medical licensing practices to universities was a process intended to do more than protect the public from 'quackery', but was engineered to be unnecessarily prolonged, inefficient, and a costly process so as to deter 'outsiders' from getting into the field, thereby enhancing the prestige and earning power of medical professionals.", "title": "Modern" }, { "paragraph_id": 68, "text": "The university system in general continues to serve as a basis upon which modern quasi-guilds operate in the form of professionalism. 'Universitas' in the Middle Ages meant a society of masters who had the capacity for self-governance, and this term was adopted by students and teachers who came together in the twelfth century to form scholars guilds. Though guilds mostly died off by the middle of the nineteenth century, the scholars guild persisted due to its peripheral nature to an industrialized economy. In the words of Elliot Krause,", "title": "Modern" }, { "paragraph_id": 69, "text": "\"The university and scholars' guilds held onto their power over membership, training, and workplace because early capitalism was not interested in it (there was no product that the capitalist wished to produce)...the cultural prestige of knowledge itself helped keep the scholars' guild and the university alive while all other guilds failed.\" - Elliot Krause, The Death of Guilds (1996)", "title": "Modern" }, { "paragraph_id": 70, "text": "Though in theory anyone can start a college, the 'privilege' in this case is the linking of federal aid to accreditation. While accreditation of a university is entirely optional, attending an accredited university is a prerequisite to receiving federal aid, and this has a powerful influence on limiting consumer options in the field of education as it provides a mechanism to limit entrepreneurial 'outsiders' from entering the field of education. George Leef and Roxana Burris study the accreditation system for which they observe is 'highly collegial' and potentially bias in the fact that accreditation review is performed by members of schools who will in turn be reviewed by many of the same people who they have reviewed. They further question the effectiveness of the methods involved in accreditation,", "title": "Modern" }, { "paragraph_id": 71, "text": "\"Although accreditation is usually justified as a means of giving students and parents an assurance of educational quality, it is important to note that the accreditors do not endeavor to assess the quality of individual programs or departments.... The accreditation system is not based on an evaluation of the results of an institution, but rather upon an evaluation of its inputs and processes. If the inputs and processes look good, acceptable educational quality is assumed. It is as if an organization decided which automobiles would be allowed to be sold by checking to make sure that each car model had tires, doors, an engine and so forth and had been assembled by workers with proper training—but without actually driving any cars\" - George C. Leef and Roxana D. Burris, Can College Accreditation Live Up To Its Promise?", "title": "Modern" }, { "paragraph_id": 72, "text": "Taken in the context of guilds, it can be argued that the purpose of accreditation is to provide a mechanism for members of the scholars guild to protect itself, both by limiting outsiders from entering the field and by enforcing established norms onto one another. Contriving means to limit the number of outsiders who gain an entrance to a field (exclusivity) and to enforce work norms among members were both distinguishing feature of guilds in the Middle Ages.", "title": "Modern" }, { "paragraph_id": 73, "text": "In 1998, Thomas W. Malone championed a modern variant of the guild structure for independent contractors and remote workers. Insurance including any professional legal liability, intellectual capital protections, an ethical code perhaps enforced by peer pressure and software, and other benefits of a strong association of producers of knowledge, benefit from economies of scale, and may prevent cut-throat competition that leads to inferior services undercutting prices. As with historical guilds, such a structure will resist foreign competition.", "title": "Modern" }, { "paragraph_id": 74, "text": "The open-source-software movement has from time to time explored a guild-like structure to unite against competition from Microsoft, e.g. Advogato assigns journeyer and master ranks to those committing to work only or mostly on free software.", "title": "Modern" }, { "paragraph_id": 75, "text": "Patents loosely serve as a form of guild privilege in that they restrict potential newcomers to a field of service. The idea of a patent being applied to intangibles (e.g. intellectual patents) has been called to question by various authors. In Capital and Ideology (2000) Thomas Picketty questions the validity of patents being granted to agricultural corporations who claim to have 'invented' certain GMO seeds. According to Picketty, the falsity of such claims is that the specific breakthrough which allowed for the development of these GMO seeds was in fact only the end outcome of generations of public investment in education and research.", "title": "Modern" }, { "paragraph_id": 76, "text": "In many European countries, guilds have experienced a revival as local trade organizations for craftsmen, primarily in traditional skills. They may function as forums for developing competence and are often the local units of a national employer's organisation.", "title": "Modern" }, { "paragraph_id": 77, "text": "In the City of London, the ancient guilds survive as livery companies, all of which play a ceremonial role in the city's many customs. The City of London livery companies maintain strong links with their respective trade, craft or profession, some still retain regulatory, inspection or enforcement roles. The senior members of the City of London Livery Companies (known as liverymen) elect the sheriffs and approve the candidates for the office of Lord Mayor of London. Guilds also survive in many other towns and cities the UK including in Preston, Lancashire, as the Preston Guild Merchant where among other celebrations descendants of burgesses are still admitted into membership. With the City of London livery companies, the UK has over 300 extant guilds and growing.", "title": "Modern" }, { "paragraph_id": 78, "text": "In 1878, the London livery companies established the City and Guilds of London Institute the forerunner of the engineering school (still called City and Guilds College) at Imperial College London. The aim of the City and Guilds of London Institute was the advancement of technical education. \"City and Guilds\" operates as an examining and accreditation body for vocational, managerial and engineering qualifications from entry-level craft and trade skills up to post-doctoral achievement. A separate organisation, the City and Guilds of London Art School has also close ties with the London livery companies and is involved in the training of master craftworkers in stone and wood carving, as well as fine artists.", "title": "Modern" }, { "paragraph_id": 79, "text": "In Germany, there are no longer any Zünfte (or Gilden – the terms used were rather different from town to town), nor any restriction of a craft to a privileged corporation. However, under one other of their old names albeit a less frequent one, Innungen, guilds continue to exist as private member clubs with membership limited to practitioners of particular trades or activities. These clubs are corporations under public law, albeit the membership is voluntary; the president normally comes from the ranks of master-craftsmen and is called Obermeister (\"master-in-chief\"). Journeymen elect their own representative bodies, with their president having the traditional title of Altgesell (senior journeyman).", "title": "Modern" }, { "paragraph_id": 80, "text": "There are also \"craft chambers\" (Handwerkskammern), which have less resemblance to ancient guilds in that they are organized for all crafts in a certain region, not just one. In them membership is mandatory, and they serve to establish self-governance of the crafts.", "title": "Modern" }, { "paragraph_id": 81, "text": "Guilds were abolished in France during the French Revolution. Following a decree of 4 August 1789, they survived until March 1791 when they were finally abolished.", "title": "Modern" }, { "paragraph_id": 82, "text": "India's guilds include the Students Guild, Indian Engineers Guild, and the Safety Guild. Other professional associations include the Indian medical Association, Indian Engineers, Indian Dental Association, United nurses Association, etc. Most of them use Union, Association or Society as suffix.", "title": "Modern" }, { "paragraph_id": 83, "text": "In the United States guilds exist in several fields. Often, they are better characterized as a labor union — for example, The Newspaper Guild is a labor union for journalists and other newspaper workers, with over 30,000 members in North America.", "title": "Modern" }, { "paragraph_id": 84, "text": "In the film and television industry, guild membership is generally a prerequisite for working on major productions in certain capacities. The Screen Actors Guild, Directors Guild of America, Writers Guild of America, East, Writers Guild of America, West and other profession-specific guilds have the ability to exercise strong control in the cinema of the United States as a result of a rigid system of intellectual-property rights and a history of power-brokers also holding guild membership (e.g., DreamWorks Pictures founder Steven Spielberg was, and is, a DGA member). These guilds maintain their own contracts with production companies to ensure a certain number of their members are hired for roles in each film or television production, and that their members are paid a minimum of guild \"scale,\" along with other labor protections. These guilds set high standards for membership, and exclude professional actors, writers, etc. who do not abide by the strict rules for competing within the film and television industry in America.", "title": "Modern" }, { "paragraph_id": 85, "text": "Real-estate brokerage offers an example of a modern American guild system. Signs of guild behavior in real-estate brokerage include: standard pricing (6% of the home price), strong affiliation among all practitioners, self-regulation (see National Association of Realtors), strong cultural identity (the Realtor brand), little price variation with quality differences, and traditional methods in use by all practitioners. In September 2005 the U.S. Department of Justice filed an antitrust lawsuit against the National Association of Realtors, challenging NAR practices that (the DOJ asserted) prevent competition from practitioners who use different methods. The DOJ and the Federal Trade Commission in 2005 advocated against state laws, supported by NAR, that disadvantage new kinds of brokers. U.S. v. National Assoc. of Realtors, Civil Action No. 05C-5140 (N.D. Ill. Sept. 7, 2005).", "title": "Modern" }, { "paragraph_id": 86, "text": "The practice of law in the United States also exemplifies modern guilds at work. Every state maintains its own bar association, supervised by that state's highest court. The court decides the criteria for entering and staying in the legal profession. In most states, every attorney must become a member of that state's bar association in order to practice law. State laws forbid any person from engaging in the unauthorized practice of law and practicing attorneys are subject to rules of professional conduct that are enforced by the state's supreme court.", "title": "Modern" }, { "paragraph_id": 87, "text": "Medical associations comparable to guilds include the state Medical Boards, the American Medical Association, and the American Dental Association. Medical licensing in most states requires specific training, tests and years of low-paid apprenticeship (internship and residency) under harsh working conditions. Even qualified international or out-of-state doctors may not practice without acceptance by the local medical guild (Medical board). Similarly, nurses and physicians' practitioners have their own guilds. A doctor cannot work as a physician's assistant unless (s)he separately trains, tests and apprentices as one.", "title": "Modern" }, { "paragraph_id": 88, "text": "Australia has several guilds. The most notable of these is The Pharmacy Guild of Australia, created in 1927 as the Federated Pharmaceutical Services Guild of Australia. The Pharmacy Guild serves \"6,000 community pharmacies,\" while also providing training and standards for the country's pharmacists. Australia's other guilds include the Australian Directors Guild, representing the country's directors, documentary makers and animators, the Australian Writers' Guild, the Australian Butcher's Guild, a fraternity of independent butchers which provides links to resources like Australian meat standards and a guide to different beef cuts, and The Artists Guild, a craft guild focusing on female artists.", "title": "Modern" } ]
A guild is an association of artisans and merchants who oversee the practice of their craft/trade in a particular territory. The earliest types of guild formed as organizations of tradespeople belonging to a professional association. They sometimes depended on grants of letters patent from a monarch or other ruler to enforce the flow of trade to their self-employed members, and to retain ownership of tools and the supply of materials, but most were regulated by the local government. Guild members found guilty of cheating the public would be fined or banned from the guild. A lasting legacy of traditional guilds are the guildhalls constructed and used as guild meeting-places. Typically the key "privilege" was that only guild members were allowed to sell their goods or practice their skill within the city. There might be controls on minimum or maximum prices, hours of trading, numbers of apprentices, and many other things. Critics argued that these rules reduced free competition, but defenders maintained that they protected professional standards. An important result of the guild framework was the emergence of universities at Bologna, Oxford and Paris; they originated as guilds of students or of masters.
2001-07-27T01:06:06Z
2023-12-25T16:10:47Z
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https://en.wikipedia.org/wiki/Guild
12,372
Gradius (video game)
Gradius is a side-scrolling shooter video game developed and published by Konami. The first game in the Gradius series, it was originally released as a coin-operated arcade game in 1985. The player maneuvers a spacecraft known as the Vic Viper that must defend itself from the various alien enemies. The game uses a power-up system called the "power meter", based upon collecting capsules to purchase additional weapons. The arcade version of Gradius was initially released internationally outside Japan under the title of Nemesis, but subsequent home releases have since used the original title. During development, it had the working title Scramble 2, as it was originally intended to be a follow-up to Konami's earlier shooter Scramble (1981). Home versions were released for various platforms, such as the Famicom/NES, the MSX home computer, and the PC Engine. It was a major success in 1986, becoming the year's highest-grossing arcade game in London and one of Japan's top five table arcade games, while the Famicom port sold over a million copies in Japan that year. Gradius was critically acclaimed for its gameplay and unique power-up system. Along with Namco's Xevious, it is cited as being one of the most important shooter games, having paved the way for many similar games to follow. The player controls the trans-dimensional spaceship Vic Viper and must battle waves of enemies through various environments. The game became synonymous with the phrase, "Destroy the core!", as the standard of boss battles in the Gradius series involved combat with a giant craft, in the center of which would be situated one to several blue colored spheres. These bosses would be designed in such a way that there would be a straight passage from the exterior of the giant craft which leads directly to one of these cores. The player must fire shots into this passage while avoiding attack patterns from weapon emplacements on the body of the boss. However, small but destructible walls are situated in this passage, impeding the bullet shots from damaging the core, and must be whittled away by repeated well-placed shots. In a way, these tiny walls represent the boss' shielding gauge until its core is finally vulnerable to attack. Some bosses can regenerate these walls. When the core has sustained enough hits, it usually changes color from blue to red, indicating that it is in critical condition and its destruction is imminent. Upon the destruction of a core, a piece of the boss may be put out of commission, seeing that it is no longer powered by a core, or if all of the cores are destroyed, the entire boss is defeated and explodes satisfyingly. Note that these cores are not present on the more organic bosses of Gradius. Such bosses have weak spots in places such as a mouth, head or eye. When gameplay begins, the Vic Viper is relatively slow and has only a weak gun. This level of capability is generally insufficient for engaging enemies, but the Vic Viper can gain greater capabilities by collecting and using power-up items. While most arcade games utilize distinct power up-items that each correspond to a specific effect on the player character, Gradius has a single power-up item. The effect of this power-up item is to advance the currently selected item in a power-up menu that appears at the bottom of the screen. When the desired power-up is highlighted, the player can obtain it by pressing the power-up button, returning the menu to its initial state in which no power-up is highlighted. Gradius was the creation of Konami game designer Machiguchi Hiroyasu, being the first video game he publicly released. Joining the company in the early 1980s originally as a programmer, Konami was trying to transition from being a producer of medal machines to a video game developer and assigned him to a small team to try and create a game that could put the company on the map. He asked the team what kind of game they'd like to work on, responding that they'd like to make another shooting game. The shoot'em up genre had seen a resurgence at the time with Namco's Xevious, with the goal of the project being to make a shooter that could surpass it. The project was at first intended to be a followup to Konami's earlier game Scramble (1981), being titled Scramble 2 and reusing many of its material and game mechanics. Development of Gradius lasted for about a year, which Hiroyasu says was filled with anxiety and worry from the production team due to it being their first game, lacking confidence in what they were doing. Members of the project came up with ideas that were then tested on the arcade monitor to see if they worked or not. While designing the Option satellites, the team tested over 20 different movement patterns for them, which were cut through the process of elimination based on those that didn't work. The game was produced for the Konami Bubble System 16-bit arcade hardware, which gave the team more hardware capacity and memory to experiment with. Hiroyasu wanted the game to have a visually distinct world with unique enemies and locations, something relatively uncommon for shooters at the time. Inspiration for mechanics and the story were derived from films such as Star Wars: A New Hope and Lensman, with the Laser weapon being directly taken from those in Lensman. The idea for the power meter mechanic stemmed from the team's desire to give players the freedom to select whichever weapons they pleased. Early versions had the player collecting individual pick-up icons, which were cut for not being "satisfying" enough; it was instead replaced with a selection bar where players collected capsules to allow access to other weapons, an idea based on the function keys on a keyboard. The Moai enemies were added to pay homage to Xevious and its Nazca lines, and as a way to give the game a sense of mystery. Gradius was first released in Japan for Konami's Bubble System, an arcade board which allows operators to change the software through the use of proprietary "Bubble Software" cartridge media based on magnetic bubble memory. The game was distributed as a standard printed circuit board in North America and Europe under the title of Nemesis. The North American version of Nemesis features a considerably increased difficulty compared to the Japanese and European version. To balance this, the game spawns a fleet of orange enemies when the player loses a life to provide as many power-up capsules as possible to recover as many upgrades as possible. Also the North American version presents a continue feature (but only for three times). The title screen was also updated, showing an in-game reproduction of the promotional artwork behind the logo. The first home conversion of Gradius was released for Nintendo's Famicom console on April 25, 1986, in Japan. Due to the hardware limitations of the Famicom, many of the level designs were simplified (the Moai stage, for example, lacks the vertical scrolling present in the arcade game) and the maximum amount of options that the player can upgrade to was reduced from four to two. This version added a cheat code that can be entered while the game is paused that grants the player's ship almost all the power-ups. This code would appear again in many later Konami on the NES and other consoles (such as Contra and Life Force), becoming known as the Konami Code. The NES version of Gradius was released in North America in December 1986. It is the first NES game to have been released by Konami in the region and unlike the original arcade game, the title was kept unchanged between regions. The NES version was made available in arcades as a Nintendo VS. System board (under the title of VS. Gradius) and as a PlayChoice-10 cartridge. VS. Gradius was distributed to arcades by Nintendo. The MSX version of Gradius was released on July 25, 1986, in Japan, a few months after the Famicom version. It was also released in Europe under the Nemesis title. This version changed similar to the Famicom version but adds its slew of exclusive content to make up for the downgrade. A new stage, the bone planet was added between the Inverted Volcano stage and the Antennoid stage, featuring exclusive enemy types. There also four hidden warp zones and the ability to play as the titular ship from TwinBee if the MSX version of that game is played alongside Nemesis. The PC Engine version of Gradius was released on November 15, 1991, exclusively in Japan. Released on a 2-Megabit HuCard, it had relatively few omissions compared to the NES and MSX versions and added a Desert Planet stage similar to the Bone Planet stage from the MSX version. Because of the lower resolution of the PC Engine compared to the original arcade hardware, the PC Engine features some slight vertical-scrolling. In addition to the MSX, Gradius was also ported to other microcomputers shortly after its release, such as the ZX Spectrum, Amstrad CPC and Commodore 64 in Europe (as Nemesis: The Final Challenge), as well as the PC-8801 and X1 in Japan. A port for the X68000 computer was also included in the early models of the computer. The original Gradius is also included in collection such as Gradius Deluxe Pack for the PlayStation, Sega Saturn and Microsoft Windows, and Gradius Collection for the PlayStation Portable. The arcade version was digitally released on the PlayStation 4 in 2015 and Nintendo Switch in July 2020 as part of the Arcade Archives series, with the option to play all four regional variants of the game. It is also included in the Arcade Classics Anniversary Collection released in 2019 by Konami themselves for PlayStation 4, Xbox One, Nintendo Switch and Windows. In Japan, Game Machine listed Gradius on their July 1, 1985 issue as being the most-popular arcade game for the previous two weeks. It went on to be Japan's fifth highest-grossing table arcade game of 1986. In the United Kingdom, Nemesis was the highest-grossing arcade game of 1986 on London's Electrocoin charts. Upon release, the arcade game received positive reviews from Computer and Video Games and Computer Gamer magazines. The Famicom version sold over one million copies in Japan during 1986. The home computer port went to number 2 in the UK sales charts, below Feud. The PC Engine version also topped the UK's PC Engine sales chart in December 1991. The first Famitsu Best Hit Game Awards gave the Famicom version of Gradius the award for Best Shooting Game and listed it as the second best Game of the Year (just below Dragon Quest). Computer and Video Games reviewed the home computer conversions and awarded it Game of the Month. GameSpot later stated that Gradius was one of the toughest side-scrolling shooter games available on the NES, second only to Contra. IGN gave the Wii Virtual Console re-release a rating 7 out of 10 and has hailed it as one of the greatest classic side-scrolling shooter games. Gradius spawned several sequels, the first of which was 1986's Salamander. The series has continued into the seventh generation with Gradius ReBirth. It was also re-released on Windows Store on December 20, 2013, GameNow in May 2014 and for PlayStation 4's Arcade Archives on January 25 in Japan. An NES port was re-released for the Nintendo Switch Online on September 19, 2018, worldwide and an updated release as Gradius: Stage 5 Stronger Version (グラディウス ステージ5最強バージョン, Guradiusu Sutēji 5 Saikyō Bājon) on November 14, 2018, worldwide. Another updated release titled Gradius SP: Second Loop was released worldwide on August 22, 2019.
[ { "paragraph_id": 0, "text": "Gradius is a side-scrolling shooter video game developed and published by Konami. The first game in the Gradius series, it was originally released as a coin-operated arcade game in 1985. The player maneuvers a spacecraft known as the Vic Viper that must defend itself from the various alien enemies. The game uses a power-up system called the \"power meter\", based upon collecting capsules to purchase additional weapons.", "title": "" }, { "paragraph_id": 1, "text": "The arcade version of Gradius was initially released internationally outside Japan under the title of Nemesis, but subsequent home releases have since used the original title. During development, it had the working title Scramble 2, as it was originally intended to be a follow-up to Konami's earlier shooter Scramble (1981). Home versions were released for various platforms, such as the Famicom/NES, the MSX home computer, and the PC Engine. It was a major success in 1986, becoming the year's highest-grossing arcade game in London and one of Japan's top five table arcade games, while the Famicom port sold over a million copies in Japan that year.", "title": "" }, { "paragraph_id": 2, "text": "Gradius was critically acclaimed for its gameplay and unique power-up system. Along with Namco's Xevious, it is cited as being one of the most important shooter games, having paved the way for many similar games to follow.", "title": "" }, { "paragraph_id": 3, "text": "The player controls the trans-dimensional spaceship Vic Viper and must battle waves of enemies through various environments. The game became synonymous with the phrase, \"Destroy the core!\", as the standard of boss battles in the Gradius series involved combat with a giant craft, in the center of which would be situated one to several blue colored spheres. These bosses would be designed in such a way that there would be a straight passage from the exterior of the giant craft which leads directly to one of these cores. The player must fire shots into this passage while avoiding attack patterns from weapon emplacements on the body of the boss. However, small but destructible walls are situated in this passage, impeding the bullet shots from damaging the core, and must be whittled away by repeated well-placed shots. In a way, these tiny walls represent the boss' shielding gauge until its core is finally vulnerable to attack. Some bosses can regenerate these walls. When the core has sustained enough hits, it usually changes color from blue to red, indicating that it is in critical condition and its destruction is imminent. Upon the destruction of a core, a piece of the boss may be put out of commission, seeing that it is no longer powered by a core, or if all of the cores are destroyed, the entire boss is defeated and explodes satisfyingly. Note that these cores are not present on the more organic bosses of Gradius. Such bosses have weak spots in places such as a mouth, head or eye.", "title": "Gameplay" }, { "paragraph_id": 4, "text": "When gameplay begins, the Vic Viper is relatively slow and has only a weak gun. This level of capability is generally insufficient for engaging enemies, but the Vic Viper can gain greater capabilities by collecting and using power-up items. While most arcade games utilize distinct power up-items that each correspond to a specific effect on the player character, Gradius has a single power-up item. The effect of this power-up item is to advance the currently selected item in a power-up menu that appears at the bottom of the screen. When the desired power-up is highlighted, the player can obtain it by pressing the power-up button, returning the menu to its initial state in which no power-up is highlighted.", "title": "Gameplay" }, { "paragraph_id": 5, "text": "Gradius was the creation of Konami game designer Machiguchi Hiroyasu, being the first video game he publicly released. Joining the company in the early 1980s originally as a programmer, Konami was trying to transition from being a producer of medal machines to a video game developer and assigned him to a small team to try and create a game that could put the company on the map. He asked the team what kind of game they'd like to work on, responding that they'd like to make another shooting game. The shoot'em up genre had seen a resurgence at the time with Namco's Xevious, with the goal of the project being to make a shooter that could surpass it. The project was at first intended to be a followup to Konami's earlier game Scramble (1981), being titled Scramble 2 and reusing many of its material and game mechanics.", "title": "Development" }, { "paragraph_id": 6, "text": "Development of Gradius lasted for about a year, which Hiroyasu says was filled with anxiety and worry from the production team due to it being their first game, lacking confidence in what they were doing. Members of the project came up with ideas that were then tested on the arcade monitor to see if they worked or not. While designing the Option satellites, the team tested over 20 different movement patterns for them, which were cut through the process of elimination based on those that didn't work. The game was produced for the Konami Bubble System 16-bit arcade hardware, which gave the team more hardware capacity and memory to experiment with. Hiroyasu wanted the game to have a visually distinct world with unique enemies and locations, something relatively uncommon for shooters at the time. Inspiration for mechanics and the story were derived from films such as Star Wars: A New Hope and Lensman, with the Laser weapon being directly taken from those in Lensman. The idea for the power meter mechanic stemmed from the team's desire to give players the freedom to select whichever weapons they pleased. Early versions had the player collecting individual pick-up icons, which were cut for not being \"satisfying\" enough; it was instead replaced with a selection bar where players collected capsules to allow access to other weapons, an idea based on the function keys on a keyboard. The Moai enemies were added to pay homage to Xevious and its Nazca lines, and as a way to give the game a sense of mystery.", "title": "Development" }, { "paragraph_id": 7, "text": "Gradius was first released in Japan for Konami's Bubble System, an arcade board which allows operators to change the software through the use of proprietary \"Bubble Software\" cartridge media based on magnetic bubble memory. The game was distributed as a standard printed circuit board in North America and Europe under the title of Nemesis. The North American version of Nemesis features a considerably increased difficulty compared to the Japanese and European version. To balance this, the game spawns a fleet of orange enemies when the player loses a life to provide as many power-up capsules as possible to recover as many upgrades as possible. Also the North American version presents a continue feature (but only for three times). The title screen was also updated, showing an in-game reproduction of the promotional artwork behind the logo.", "title": "Releases" }, { "paragraph_id": 8, "text": "The first home conversion of Gradius was released for Nintendo's Famicom console on April 25, 1986, in Japan. Due to the hardware limitations of the Famicom, many of the level designs were simplified (the Moai stage, for example, lacks the vertical scrolling present in the arcade game) and the maximum amount of options that the player can upgrade to was reduced from four to two. This version added a cheat code that can be entered while the game is paused that grants the player's ship almost all the power-ups. This code would appear again in many later Konami on the NES and other consoles (such as Contra and Life Force), becoming known as the Konami Code.", "title": "Releases" }, { "paragraph_id": 9, "text": "The NES version of Gradius was released in North America in December 1986. It is the first NES game to have been released by Konami in the region and unlike the original arcade game, the title was kept unchanged between regions. The NES version was made available in arcades as a Nintendo VS. System board (under the title of VS. Gradius) and as a PlayChoice-10 cartridge. VS. Gradius was distributed to arcades by Nintendo.", "title": "Releases" }, { "paragraph_id": 10, "text": "The MSX version of Gradius was released on July 25, 1986, in Japan, a few months after the Famicom version. It was also released in Europe under the Nemesis title. This version changed similar to the Famicom version but adds its slew of exclusive content to make up for the downgrade. A new stage, the bone planet was added between the Inverted Volcano stage and the Antennoid stage, featuring exclusive enemy types. There also four hidden warp zones and the ability to play as the titular ship from TwinBee if the MSX version of that game is played alongside Nemesis.", "title": "Releases" }, { "paragraph_id": 11, "text": "The PC Engine version of Gradius was released on November 15, 1991, exclusively in Japan. Released on a 2-Megabit HuCard, it had relatively few omissions compared to the NES and MSX versions and added a Desert Planet stage similar to the Bone Planet stage from the MSX version. Because of the lower resolution of the PC Engine compared to the original arcade hardware, the PC Engine features some slight vertical-scrolling.", "title": "Releases" }, { "paragraph_id": 12, "text": "In addition to the MSX, Gradius was also ported to other microcomputers shortly after its release, such as the ZX Spectrum, Amstrad CPC and Commodore 64 in Europe (as Nemesis: The Final Challenge), as well as the PC-8801 and X1 in Japan. A port for the X68000 computer was also included in the early models of the computer.", "title": "Releases" }, { "paragraph_id": 13, "text": "The original Gradius is also included in collection such as Gradius Deluxe Pack for the PlayStation, Sega Saturn and Microsoft Windows, and Gradius Collection for the PlayStation Portable. The arcade version was digitally released on the PlayStation 4 in 2015 and Nintendo Switch in July 2020 as part of the Arcade Archives series, with the option to play all four regional variants of the game. It is also included in the Arcade Classics Anniversary Collection released in 2019 by Konami themselves for PlayStation 4, Xbox One, Nintendo Switch and Windows.", "title": "Releases" }, { "paragraph_id": 14, "text": "In Japan, Game Machine listed Gradius on their July 1, 1985 issue as being the most-popular arcade game for the previous two weeks. It went on to be Japan's fifth highest-grossing table arcade game of 1986. In the United Kingdom, Nemesis was the highest-grossing arcade game of 1986 on London's Electrocoin charts.", "title": "Reception" }, { "paragraph_id": 15, "text": "Upon release, the arcade game received positive reviews from Computer and Video Games and Computer Gamer magazines.", "title": "Reception" }, { "paragraph_id": 16, "text": "The Famicom version sold over one million copies in Japan during 1986. The home computer port went to number 2 in the UK sales charts, below Feud. The PC Engine version also topped the UK's PC Engine sales chart in December 1991.", "title": "Reception" }, { "paragraph_id": 17, "text": "The first Famitsu Best Hit Game Awards gave the Famicom version of Gradius the award for Best Shooting Game and listed it as the second best Game of the Year (just below Dragon Quest). Computer and Video Games reviewed the home computer conversions and awarded it Game of the Month.", "title": "Reception" }, { "paragraph_id": 18, "text": "GameSpot later stated that Gradius was one of the toughest side-scrolling shooter games available on the NES, second only to Contra. IGN gave the Wii Virtual Console re-release a rating 7 out of 10 and has hailed it as one of the greatest classic side-scrolling shooter games.", "title": "Reception" }, { "paragraph_id": 19, "text": "Gradius spawned several sequels, the first of which was 1986's Salamander. The series has continued into the seventh generation with Gradius ReBirth.", "title": "Legacy" }, { "paragraph_id": 20, "text": "It was also re-released on Windows Store on December 20, 2013, GameNow in May 2014 and for PlayStation 4's Arcade Archives on January 25 in Japan. An NES port was re-released for the Nintendo Switch Online on September 19, 2018, worldwide and an updated release as Gradius: Stage 5 Stronger Version (グラディウス ステージ5最強バージョン, Guradiusu Sutēji 5 Saikyō Bājon) on November 14, 2018, worldwide. Another updated release titled Gradius SP: Second Loop was released worldwide on August 22, 2019.", "title": "Legacy" } ]
Gradius is a side-scrolling shooter video game developed and published by Konami. The first game in the Gradius series, it was originally released as a coin-operated arcade game in 1985. The player maneuvers a spacecraft known as the Vic Viper that must defend itself from the various alien enemies. The game uses a power-up system called the "power meter", based upon collecting capsules to purchase additional weapons. The arcade version of Gradius was initially released internationally outside Japan under the title of Nemesis, but subsequent home releases have since used the original title. During development, it had the working title Scramble 2, as it was originally intended to be a follow-up to Konami's earlier shooter Scramble (1981). Home versions were released for various platforms, such as the Famicom/NES, the MSX home computer, and the PC Engine. It was a major success in 1986, becoming the year's highest-grossing arcade game in London and one of Japan's top five table arcade games, while the Famicom port sold over a million copies in Japan that year. Gradius was critically acclaimed for its gameplay and unique power-up system. Along with Namco's Xevious, it is cited as being one of the most important shooter games, having paved the way for many similar games to follow.
2001-07-31T21:41:05Z
2023-12-13T06:42:59Z
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https://en.wikipedia.org/wiki/Gradius_(video_game)
12,373
Gamemaster
A gamemaster (GM; also known as game master, game manager, game moderator, referee, or storyteller) is a person who acts as an organizer, officiant for regarding rules, arbitrator, and moderator for a multiplayer role-playing game. They are more common in co-operative games in which players work together than in competitive games in which players oppose each other. The act performed by a gamemaster is sometimes referred to as "Gamemastering" or simply "GM-ing". The role of a gamemaster in a traditional table-top role-playing game (pencil-and-paper role-playing game) is to weave the other participants' player-character stories together, control the non-player aspects of the game, create environments in which the players can interact, and solve any player disputes. The basic role of the gamemaster is the same in almost all traditional role-playing games, although differing rule sets make the specific duties of the gamemaster unique to that system. The role of a gamemaster in an online game is to enforce the game's rules and provide general customer service. Also, unlike gamemasters in traditional role-playing games, gamemasters for online games in some cases are paid employees. In Dungeons & Dragons, gamemasters are called dungeon masters, and in the World of Darkness games, they are called storytellers. The term gamemaster and the role associated with it could be found in the postal gaming hobby. In typical play-by-mail games, players control armies or civilizations and mail their chosen actions to the GM. The GM then mails the updated game state to all players on a regular basis. Usage in a wargaming context includes Guidon Games 1973 ruleset, Ironclad. In a role-playing game context, it was first used by Dave Arneson while developing his game Blackmoor in 1971, although the first usage in print may have been Chivalry & Sorcery. Each gaming system has its own name for the role of the gamemaster, such as "judge", "narrator", "referee", "director", or "storyteller", and these terms not only describe the role of the gamemaster in general but also help define how the game is intended to be run. For example, the Storyteller System used in White Wolf Game Studio's storytelling games calls its GM the "storyteller", while the rules- and setting-focused Marvel Super Heroes role-playing game calls its GM the "judge". The cartoon inspired role-playing game Toon calls its GM the "animator". A few games apply system- or setting-specific flavorful names to the GM, such as the Keeper of Arcane Lore (in Call of Cthulhu), the Hollyhock God (Nobilis, in which the hollyhock represents vanity), or the most famous of such terms, the "Dungeon Master" (or "DM") in Dungeons & Dragons. The gamemaster prepares the game session for the players and the characters they play (known as player characters or PCs), describes the events taking place and decides on the outcomes of players' decisions. The gamemaster also keeps track of non-player characters (NPCs) and random encounters, as well as of the general state of the game world. The game session (or "adventure") can be metaphorically described as a play, in which the players are the lead actors, and the GM provides the stage, the scenery, the basic plot on which the improvisational script is built, as well as all the bit parts and supporting characters. Gamemasters can also be in charge of RPG board games making the events and setting challenges. GMs may choose to run a game based on a published game world, with the maps and history already in place; such game worlds often have pre-written adventures. Alternatively, the GM may build their own world and script their own adventures. A good gamemaster draws the players into the adventure, making it enjoyable for everyone. Good gamemasters have quick minds, sharp wits, and rich imaginations. Gamemasters must also maintain game balance: hideously overpowered monsters or players are no fun. It was noted, in 1997, that those who favor their left-brain such as skilled code writers usually do not make it in the ethereal gamemaster world of storytelling and verse. In early virtual worlds gamemasters served as a moderator or administrator; in MUD game masters were called "wizards". Gamemastering in the form found in traditional role-playing games has also been used in semi-automatic virtual worlds. However, human moderation was sometimes considered unfair or out of context in an otherwise automated world. As online games expanded, gamemaster duties expanded to include being a customer service representative for an online community. A gamemaster in such a game is either an experienced volunteer player or an employee of the game's publisher. They enforce the game's rules by banishing spammers, player killers, cheaters, and hackers and by solving players' problems by providing general customer service. For their tasks they use special tools and characters that allow them to do things like teleport to players, summon items, and browse logs that record players' activities. Often, players who feel dissatisfied with the game will blame the GMs directly for any errors or glitches. However, this blame is misdirected as most GMs are not developers and cannot resolve those types of problems. The now defunct America Online Online Gaming Forum used to use volunteers selected by applications from its user base. These people were simply referred to as OGFs by other members, and their screennames were indicative of their position (i.e., OGF Moose, etc.). While membership in the Online Gaming Forum had only one real requirement (that is, be a member of AOL), OGFs were given powers quite similar to AOL "Guides" and could use them at will to discipline users as they saw appropriate. World of Warcraft has employees of Blizzard Entertainment that serve as gamemasters to help users with various problems in gameplay, chat, and other things like account and billing issues. A gamemaster in this game will communicate with players through chat that has blue text and they will also have a special "GM" tag and Blizzard logo in front of their names. RuneScape has more than 500 moderators employed by Jagex to assist players and perform administrative duties in-game and on the site forums. These Jagex Moderators, as they are called, usually have the word "Mod" and a gold crown preceding their account names which ordinary players are not permitted to use. The game also has Player Moderators and Forum Moderators who are player volunteers helping with moderation, having the ability to mute (block from chatting) other players who violate rules. Battleground Europe, a medium-sized MMOFPS, has a team of Game Moderators, anonymous volunteers who moderate the game. Miniconomy, a smaller text-based MMO, has a team of Federals, experienced players that help moderate the game and interactions. Transformice, an online multiplayer platformer, has a team of volunteer moderators called Mods who are experienced players that help moderate the game and interactions. ARMA 3, an open-world military tactical shooter, has a Zeus role that allows any player slotted in that role to place down almost any asset in the game including infantry and vehicles, objectives, intelligence, and score-keeping modules. The Zeus can also modify aspects of the world itself including time, weather, and wildlife to create dynamically progressing stories. Note that a few games, notably Neverwinter Nights and Vampire: The Masquerade – Redemption, are video game adaptations of tabletop role-playing games that are played online with one player acting as a traditional gamemaster. Gamemastering, sometimes referred to as Orchestration is used in pervasive games to guide players along a trajectory desired by the game author. To ensure proper gamemastering can take place, four components are needed: some kind of sensory system to the game allowing the game masters to know current events, providing dynamic game information; dynamic and static game information lets game masters make informed decisions; decisions need to be actuated into the game, either through the game system or through manual intervention; and finally a communication structure is needed for both diegetic or non-diegetic communication. Effective gamemastering can require specialized user interfaces that are highly game specific. Sometimes, tabletop GMs simply can not find players interested in either the same setting, product line, or play style in their local neighborhood. The advent of the networked personal computer provided a solution in the form of online chat programs. Appropriately equipped gamemasters can find players online and a group can meet via chat rooms, forums, or other electronic means. In contrast to standard tabletop procedure (and to games designed to be played online), this online chat format significantly changed the balance of duties for a prospective gamemaster. Descriptive text required more preparation, if only via cut-and-paste; acting and voice skills could not be utilized to get the personality of NPCs and monsters across, increasing the value of background music ('assigned' in advance or individually chosen) as a playing aid. The GM was likely to need copies of player-character records, being unable to glance at the originals as in normal face-to-face procedure. The format also forced the issue (particularly when participants were not personally acquainted) of whether to leave all rolling of dice to the GM (making one's own rolls is a privilege not readily surrendered by some players), or to trust all players to honestly report the results of their rolls (the honor system may be strained when it is in a player's best interest to roll well). However, workarounds to these challenges have only increased over time. The use of Wiki software helps GMs and players alike keep track of all manner of game data, sometimes evolving into a home-made gaming supplement. Scripting software allows unwieldy mechanics (e.g. a complicated formula or repetitive die-rolling) to be resolved at the push of a button. Teleconferencing enhances group communication through voice, video, and a shared whiteboard. The use of technology to enable online play is growing, as reflected in products like the D&D Insider.
[ { "paragraph_id": 0, "text": "A gamemaster (GM; also known as game master, game manager, game moderator, referee, or storyteller) is a person who acts as an organizer, officiant for regarding rules, arbitrator, and moderator for a multiplayer role-playing game. They are more common in co-operative games in which players work together than in competitive games in which players oppose each other. The act performed by a gamemaster is sometimes referred to as \"Gamemastering\" or simply \"GM-ing\".", "title": "" }, { "paragraph_id": 1, "text": "The role of a gamemaster in a traditional table-top role-playing game (pencil-and-paper role-playing game) is to weave the other participants' player-character stories together, control the non-player aspects of the game, create environments in which the players can interact, and solve any player disputes. The basic role of the gamemaster is the same in almost all traditional role-playing games, although differing rule sets make the specific duties of the gamemaster unique to that system.", "title": "" }, { "paragraph_id": 2, "text": "The role of a gamemaster in an online game is to enforce the game's rules and provide general customer service. Also, unlike gamemasters in traditional role-playing games, gamemasters for online games in some cases are paid employees.", "title": "" }, { "paragraph_id": 3, "text": "In Dungeons & Dragons, gamemasters are called dungeon masters, and in the World of Darkness games, they are called storytellers.", "title": "" }, { "paragraph_id": 4, "text": "The term gamemaster and the role associated with it could be found in the postal gaming hobby. In typical play-by-mail games, players control armies or civilizations and mail their chosen actions to the GM. The GM then mails the updated game state to all players on a regular basis. Usage in a wargaming context includes Guidon Games 1973 ruleset, Ironclad.", "title": "History and variants of the term" }, { "paragraph_id": 5, "text": "In a role-playing game context, it was first used by Dave Arneson while developing his game Blackmoor in 1971, although the first usage in print may have been Chivalry & Sorcery.", "title": "History and variants of the term" }, { "paragraph_id": 6, "text": "Each gaming system has its own name for the role of the gamemaster, such as \"judge\", \"narrator\", \"referee\", \"director\", or \"storyteller\", and these terms not only describe the role of the gamemaster in general but also help define how the game is intended to be run. For example, the Storyteller System used in White Wolf Game Studio's storytelling games calls its GM the \"storyteller\", while the rules- and setting-focused Marvel Super Heroes role-playing game calls its GM the \"judge\". The cartoon inspired role-playing game Toon calls its GM the \"animator\". A few games apply system- or setting-specific flavorful names to the GM, such as the Keeper of Arcane Lore (in Call of Cthulhu), the Hollyhock God (Nobilis, in which the hollyhock represents vanity), or the most famous of such terms, the \"Dungeon Master\" (or \"DM\") in Dungeons & Dragons.", "title": "History and variants of the term" }, { "paragraph_id": 7, "text": "The gamemaster prepares the game session for the players and the characters they play (known as player characters or PCs), describes the events taking place and decides on the outcomes of players' decisions. The gamemaster also keeps track of non-player characters (NPCs) and random encounters, as well as of the general state of the game world. The game session (or \"adventure\") can be metaphorically described as a play, in which the players are the lead actors, and the GM provides the stage, the scenery, the basic plot on which the improvisational script is built, as well as all the bit parts and supporting characters. Gamemasters can also be in charge of RPG board games making the events and setting challenges.", "title": "In traditional table-top role-playing games" }, { "paragraph_id": 8, "text": "GMs may choose to run a game based on a published game world, with the maps and history already in place; such game worlds often have pre-written adventures. Alternatively, the GM may build their own world and script their own adventures.", "title": "In traditional table-top role-playing games" }, { "paragraph_id": 9, "text": "A good gamemaster draws the players into the adventure, making it enjoyable for everyone. Good gamemasters have quick minds, sharp wits, and rich imaginations. Gamemasters must also maintain game balance: hideously overpowered monsters or players are no fun. It was noted, in 1997, that those who favor their left-brain such as skilled code writers usually do not make it in the ethereal gamemaster world of storytelling and verse.", "title": "In traditional table-top role-playing games" }, { "paragraph_id": 10, "text": "In early virtual worlds gamemasters served as a moderator or administrator; in MUD game masters were called \"wizards\". Gamemastering in the form found in traditional role-playing games has also been used in semi-automatic virtual worlds. However, human moderation was sometimes considered unfair or out of context in an otherwise automated world. As online games expanded, gamemaster duties expanded to include being a customer service representative for an online community. A gamemaster in such a game is either an experienced volunteer player or an employee of the game's publisher. They enforce the game's rules by banishing spammers, player killers, cheaters, and hackers and by solving players' problems by providing general customer service. For their tasks they use special tools and characters that allow them to do things like teleport to players, summon items, and browse logs that record players' activities. Often, players who feel dissatisfied with the game will blame the GMs directly for any errors or glitches. However, this blame is misdirected as most GMs are not developers and cannot resolve those types of problems.", "title": "In online games" }, { "paragraph_id": 11, "text": "The now defunct America Online Online Gaming Forum used to use volunteers selected by applications from its user base. These people were simply referred to as OGFs by other members, and their screennames were indicative of their position (i.e., OGF Moose, etc.). While membership in the Online Gaming Forum had only one real requirement (that is, be a member of AOL), OGFs were given powers quite similar to AOL \"Guides\" and could use them at will to discipline users as they saw appropriate.", "title": "In online games" }, { "paragraph_id": 12, "text": "World of Warcraft has employees of Blizzard Entertainment that serve as gamemasters to help users with various problems in gameplay, chat, and other things like account and billing issues. A gamemaster in this game will communicate with players through chat that has blue text and they will also have a special \"GM\" tag and Blizzard logo in front of their names.", "title": "In online games" }, { "paragraph_id": 13, "text": "RuneScape has more than 500 moderators employed by Jagex to assist players and perform administrative duties in-game and on the site forums. These Jagex Moderators, as they are called, usually have the word \"Mod\" and a gold crown preceding their account names which ordinary players are not permitted to use. The game also has Player Moderators and Forum Moderators who are player volunteers helping with moderation, having the ability to mute (block from chatting) other players who violate rules.", "title": "In online games" }, { "paragraph_id": 14, "text": "Battleground Europe, a medium-sized MMOFPS, has a team of Game Moderators, anonymous volunteers who moderate the game.", "title": "In online games" }, { "paragraph_id": 15, "text": "Miniconomy, a smaller text-based MMO, has a team of Federals, experienced players that help moderate the game and interactions.", "title": "In online games" }, { "paragraph_id": 16, "text": "Transformice, an online multiplayer platformer, has a team of volunteer moderators called Mods who are experienced players that help moderate the game and interactions.", "title": "In online games" }, { "paragraph_id": 17, "text": "ARMA 3, an open-world military tactical shooter, has a Zeus role that allows any player slotted in that role to place down almost any asset in the game including infantry and vehicles, objectives, intelligence, and score-keeping modules. The Zeus can also modify aspects of the world itself including time, weather, and wildlife to create dynamically progressing stories.", "title": "In online games" }, { "paragraph_id": 18, "text": "Note that a few games, notably Neverwinter Nights and Vampire: The Masquerade – Redemption, are video game adaptations of tabletop role-playing games that are played online with one player acting as a traditional gamemaster.", "title": "In online games" }, { "paragraph_id": 19, "text": "Gamemastering, sometimes referred to as Orchestration is used in pervasive games to guide players along a trajectory desired by the game author. To ensure proper gamemastering can take place, four components are needed: some kind of sensory system to the game allowing the game masters to know current events, providing dynamic game information; dynamic and static game information lets game masters make informed decisions; decisions need to be actuated into the game, either through the game system or through manual intervention; and finally a communication structure is needed for both diegetic or non-diegetic communication. Effective gamemastering can require specialized user interfaces that are highly game specific.", "title": "In pervasive games" }, { "paragraph_id": 20, "text": "Sometimes, tabletop GMs simply can not find players interested in either the same setting, product line, or play style in their local neighborhood. The advent of the networked personal computer provided a solution in the form of online chat programs. Appropriately equipped gamemasters can find players online and a group can meet via chat rooms, forums, or other electronic means.", "title": "Gamemasters in online chat environments" }, { "paragraph_id": 21, "text": "In contrast to standard tabletop procedure (and to games designed to be played online), this online chat format significantly changed the balance of duties for a prospective gamemaster. Descriptive text required more preparation, if only via cut-and-paste; acting and voice skills could not be utilized to get the personality of NPCs and monsters across, increasing the value of background music ('assigned' in advance or individually chosen) as a playing aid. The GM was likely to need copies of player-character records, being unable to glance at the originals as in normal face-to-face procedure. The format also forced the issue (particularly when participants were not personally acquainted) of whether to leave all rolling of dice to the GM (making one's own rolls is a privilege not readily surrendered by some players), or to trust all players to honestly report the results of their rolls (the honor system may be strained when it is in a player's best interest to roll well).", "title": "Gamemasters in online chat environments" }, { "paragraph_id": 22, "text": "However, workarounds to these challenges have only increased over time. The use of Wiki software helps GMs and players alike keep track of all manner of game data, sometimes evolving into a home-made gaming supplement. Scripting software allows unwieldy mechanics (e.g. a complicated formula or repetitive die-rolling) to be resolved at the push of a button. Teleconferencing enhances group communication through voice, video, and a shared whiteboard. The use of technology to enable online play is growing, as reflected in products like the D&D Insider.", "title": "Gamemasters in online chat environments" } ]
A gamemaster is a person who acts as an organizer, officiant for regarding rules, arbitrator, and moderator for a multiplayer role-playing game. They are more common in co-operative games in which players work together than in competitive games in which players oppose each other. The act performed by a gamemaster is sometimes referred to as "Gamemastering" or simply "GM-ing". The role of a gamemaster in a traditional table-top role-playing game is to weave the other participants' player-character stories together, control the non-player aspects of the game, create environments in which the players can interact, and solve any player disputes. The basic role of the gamemaster is the same in almost all traditional role-playing games, although differing rule sets make the specific duties of the gamemaster unique to that system. The role of a gamemaster in an online game is to enforce the game's rules and provide general customer service. Also, unlike gamemasters in traditional role-playing games, gamemasters for online games in some cases are paid employees. In Dungeons & Dragons, gamemasters are called dungeon masters, and in the World of Darkness games, they are called storytellers.
2001-07-27T07:30:34Z
2023-11-16T13:39:51Z
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https://en.wikipedia.org/wiki/Gamemaster
12,383
Genetic engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novel organisms. New DNA is obtained by either isolating and copying the genetic material of interest using recombinant DNA methods or by artificially synthesising the DNA. A construct is usually created and used to insert this DNA into the host organism. The first recombinant DNA molecule was made by Paul Berg in 1972 by combining DNA from the monkey virus SV40 with the lambda virus. As well as inserting genes, the process can be used to remove, or "knock out", genes. The new DNA can be inserted randomly, or targeted to a specific part of the genome. An organism that is generated through genetic engineering is considered to be genetically modified (GM) and the resulting entity is a genetically modified organism (GMO). The first GMO was a bacterium generated by Herbert Boyer and Stanley Cohen in 1973. Rudolf Jaenisch created the first GM animal when he inserted foreign DNA into a mouse in 1974. The first company to focus on genetic engineering, Genentech, was founded in 1976 and started the production of human proteins. Genetically engineered human insulin was produced in 1978 and insulin-producing bacteria were commercialised in 1982. Genetically modified food has been sold since 1994, with the release of the Flavr Savr tomato. The Flavr Savr was engineered to have a longer shelf life, but most current GM crops are modified to increase resistance to insects and herbicides. GloFish, the first GMO designed as a pet, was sold in the United States in December 2003. In 2016 salmon modified with a growth hormone were sold. Genetic engineering has been applied in numerous fields including research, medicine, industrial biotechnology and agriculture. In research, GMOs are used to study gene function and expression through loss of function, gain of function, tracking and expression experiments. By knocking out genes responsible for certain conditions it is possible to create animal model organisms of human diseases. As well as producing hormones, vaccines and other drugs, genetic engineering has the potential to cure genetic diseases through gene therapy. The same techniques that are used to produce drugs can also have industrial applications such as producing enzymes for laundry detergent, cheeses and other products. The rise of commercialised genetically modified crops has provided economic benefit to farmers in many different countries, but has also been the source of most of the controversy surrounding the technology. This has been present since its early use; the first field trials were destroyed by anti-GM activists. Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, critics consider GM food safety a leading concern. Gene flow, impact on non-target organisms, control of the food supply and intellectual property rights have also been raised as potential issues. These concerns have led to the development of a regulatory framework, which started in 1975. It has led to an international treaty, the Cartagena Protocol on Biosafety, that was adopted in 2000. Individual countries have developed their own regulatory systems regarding GMOs, with the most marked differences occurring between the US and Europe. Genetic engineering: Process of inserting new genetic information into existing cells in order to modify a specific organism for the purpose of changing its characteristics. Note: Adapted from ref. Genetic engineering is a process that alters the genetic structure of an organism by either removing or introducing DNA, or modifying existing genetic material in situ. Unlike traditional animal and plant breeding, which involves doing multiple crosses and then selecting for the organism with the desired phenotype, genetic engineering takes the gene directly from one organism and delivers it to the other. This is much faster, can be used to insert any genes from any organism (even ones from different domains) and prevents other undesirable genes from also being added. Genetic engineering could potentially fix severe genetic disorders in humans by replacing the defective gene with a functioning one. It is an important tool in research that allows the function of specific genes to be studied. Drugs, vaccines and other products have been harvested from organisms engineered to produce them. Crops have been developed that aid food security by increasing yield, nutritional value and tolerance to environmental stresses. The DNA can be introduced directly into the host organism or into a cell that is then fused or hybridised with the host. This relies on recombinant nucleic acid techniques to form new combinations of heritable genetic material followed by the incorporation of that material either indirectly through a vector system or directly through micro-injection, macro-injection or micro-encapsulation. Genetic engineering does not normally include traditional breeding, in vitro fertilisation, induction of polyploidy, mutagenesis and cell fusion techniques that do not use recombinant nucleic acids or a genetically modified organism in the process. However, some broad definitions of genetic engineering include selective breeding. Cloning and stem cell research, although not considered genetic engineering, are closely related and genetic engineering can be used within them. Synthetic biology is an emerging discipline that takes genetic engineering a step further by introducing artificially synthesised material into an organism. Plants, animals or microorganisms that have been changed through genetic engineering are termed genetically modified organisms or GMOs. If genetic material from another species is added to the host, the resulting organism is called transgenic. If genetic material from the same species or a species that can naturally breed with the host is used the resulting organism is called cisgenic. If genetic engineering is used to remove genetic material from the target organism the resulting organism is termed a knockout organism. In Europe genetic modification is synonymous with genetic engineering while within the United States of America and Canada genetic modification can also be used to refer to more conventional breeding methods. Humans have altered the genomes of species for thousands of years through selective breeding, or artificial selection as contrasted with natural selection. More recently, mutation breeding has used exposure to chemicals or radiation to produce a high frequency of random mutations, for selective breeding purposes. Genetic engineering as the direct manipulation of DNA by humans outside breeding and mutations has only existed since the 1970s. The term "genetic engineering" was first coined by the Russian-born geneticist Nikolay Timofeev-Ressovsky in his 1934 paper "The Experimental Production of Mutations", published in the British journal Biological Reviews. Jack Williamson used the term in his science fiction novel Dragon's Island, published in 1951 – one year before DNA's role in heredity was confirmed by Alfred Hershey and Martha Chase, and two years before James Watson and Francis Crick showed that the DNA molecule has a double-helix structure – though the general concept of direct genetic manipulation was explored in rudimentary form in Stanley G. Weinbaum's 1936 science fiction story Proteus Island. In 1972, Paul Berg created the first recombinant DNA molecules by combining DNA from the monkey virus SV40 with that of the lambda virus. In 1973 Herbert Boyer and Stanley Cohen created the first transgenic organism by inserting antibiotic resistance genes into the plasmid of an Escherichia coli bacterium. A year later Rudolf Jaenisch created a transgenic mouse by introducing foreign DNA into its embryo, making it the world's first transgenic animal These achievements led to concerns in the scientific community about potential risks from genetic engineering, which were first discussed in depth at the Asilomar Conference in 1975. One of the main recommendations from this meeting was that government oversight of recombinant DNA research should be established until the technology was deemed safe. In 1976 Genentech, the first genetic engineering company, was founded by Herbert Boyer and Robert Swanson and a year later the company produced a human protein (somatostatin) in E. coli. Genentech announced the production of genetically engineered human insulin in 1978. In 1980, the U.S. Supreme Court in the Diamond v. Chakrabarty case ruled that genetically altered life could be patented. The insulin produced by bacteria was approved for release by the Food and Drug Administration (FDA) in 1982. In 1983, a biotech company, Advanced Genetic Sciences (AGS) applied for U.S. government authorisation to perform field tests with the ice-minus strain of Pseudomonas syringae to protect crops from frost, but environmental groups and protestors delayed the field tests for four years with legal challenges. In 1987, the ice-minus strain of P. syringae became the first genetically modified organism (GMO) to be released into the environment when a strawberry field and a potato field in California were sprayed with it. Both test fields were attacked by activist groups the night before the tests occurred: "The world's first trial site attracted the world's first field trasher". The first field trials of genetically engineered plants occurred in France and the US in 1986, tobacco plants were engineered to be resistant to herbicides. The People's Republic of China was the first country to commercialise transgenic plants, introducing a virus-resistant tobacco in 1992. In 1994 Calgene attained approval to commercially release the first genetically modified food, the Flavr Savr, a tomato engineered to have a longer shelf life. In 1994, the European Union approved tobacco engineered to be resistant to the herbicide bromoxynil, making it the first genetically engineered crop commercialised in Europe. In 1995, Bt potato was approved safe by the Environmental Protection Agency, after having been approved by the FDA, making it the first pesticide producing crop to be approved in the US. In 2009 11 transgenic crops were grown commercially in 25 countries, the largest of which by area grown were the US, Brazil, Argentina, India, Canada, China, Paraguay and South Africa. In 2010, scientists at the J. Craig Venter Institute created the first synthetic genome and inserted it into an empty bacterial cell. The resulting bacterium, named Mycoplasma laboratorium, could replicate and produce proteins. Four years later this was taken a step further when a bacterium was developed that replicated a plasmid containing a unique base pair, creating the first organism engineered to use an expanded genetic alphabet. In 2012, Jennifer Doudna and Emmanuelle Charpentier collaborated to develop the CRISPR/Cas9 system, a technique which can be used to easily and specifically alter the genome of almost any organism. Creating a GMO is a multi-step process. Genetic engineers must first choose what gene they wish to insert into the organism. This is driven by what the aim is for the resultant organism and is built on earlier research. Genetic screens can be carried out to determine potential genes and further tests then used to identify the best candidates. The development of microarrays, transcriptomics and genome sequencing has made it much easier to find suitable genes. Luck also plays its part; the Roundup Ready gene was discovered after scientists noticed a bacterium thriving in the presence of the herbicide. The next step is to isolate the candidate gene. The cell containing the gene is opened and the DNA is purified. The gene is separated by using restriction enzymes to cut the DNA into fragments or polymerase chain reaction (PCR) to amplify up the gene segment. These segments can then be extracted through gel electrophoresis. If the chosen gene or the donor organism's genome has been well studied it may already be accessible from a genetic library. If the DNA sequence is known, but no copies of the gene are available, it can also be artificially synthesised. Once isolated the gene is ligated into a plasmid that is then inserted into a bacterium. The plasmid is replicated when the bacteria divide, ensuring unlimited copies of the gene are available. The RK2 plasmid is notable for its ability to replicate in a wide variety of single-celled organisms, which makes it suitable as a genetic engineering tool. Before the gene is inserted into the target organism it must be combined with other genetic elements. These include a promoter and terminator region, which initiate and end transcription. A selectable marker gene is added, which in most cases confers antibiotic resistance, so researchers can easily determine which cells have been successfully transformed. The gene can also be modified at this stage for better expression or effectiveness. These manipulations are carried out using recombinant DNA techniques, such as restriction digests, ligations and molecular cloning. There are a number of techniques used to insert genetic material into the host genome. Some bacteria can naturally take up foreign DNA. This ability can be induced in other bacteria via stress (e.g. thermal or electric shock), which increases the cell membrane's permeability to DNA; up-taken DNA can either integrate with the genome or exist as extrachromosomal DNA. DNA is generally inserted into animal cells using microinjection, where it can be injected through the cell's nuclear envelope directly into the nucleus, or through the use of viral vectors. Plant genomes can be engineered by physical methods or by use of Agrobacterium for the delivery of sequences hosted in T-DNA binary vectors. In plants the DNA is often inserted using Agrobacterium-mediated transformation, taking advantage of the Agrobacteriums T-DNA sequence that allows natural insertion of genetic material into plant cells. Other methods include biolistics, where particles of gold or tungsten are coated with DNA and then shot into young plant cells, and electroporation, which involves using an electric shock to make the cell membrane permeable to plasmid DNA. As only a single cell is transformed with genetic material, the organism must be regenerated from that single cell. In plants this is accomplished through the use of tissue culture. In animals it is necessary to ensure that the inserted DNA is present in the embryonic stem cells. Bacteria consist of a single cell and reproduce clonally so regeneration is not necessary. Selectable markers are used to easily differentiate transformed from untransformed cells. These markers are usually present in the transgenic organism, although a number of strategies have been developed that can remove the selectable marker from the mature transgenic plant. Further testing using PCR, Southern hybridization, and DNA sequencing is conducted to confirm that an organism contains the new gene. These tests can also confirm the chromosomal location and copy number of the inserted gene. The presence of the gene does not guarantee it will be expressed at appropriate levels in the target tissue so methods that look for and measure the gene products (RNA and protein) are also used. These include northern hybridisation, quantitative RT-PCR, Western blot, immunofluorescence, ELISA and phenotypic analysis. The new genetic material can be inserted randomly within the host genome or targeted to a specific location. The technique of gene targeting uses homologous recombination to make desired changes to a specific endogenous gene. This tends to occur at a relatively low frequency in plants and animals and generally requires the use of selectable markers. The frequency of gene targeting can be greatly enhanced through genome editing. Genome editing uses artificially engineered nucleases that create specific double-stranded breaks at desired locations in the genome, and use the cell's endogenous mechanisms to repair the induced break by the natural processes of homologous recombination and nonhomologous end-joining. There are four families of engineered nucleases: meganucleases, zinc finger nucleases, transcription activator-like effector nucleases (TALENs), and the Cas9-guideRNA system (adapted from CRISPR). TALEN and CRISPR are the two most commonly used and each has its own advantages. TALENs have greater target specificity, while CRISPR is easier to design and more efficient. In addition to enhancing gene targeting, engineered nucleases can be used to introduce mutations at endogenous genes that generate a gene knockout. Genetic engineering has applications in medicine, research, industry and agriculture and can be used on a wide range of plants, animals and microorganisms. Bacteria, the first organisms to be genetically modified, can have plasmid DNA inserted containing new genes that code for medicines or enzymes that process food and other substrates. Plants have been modified for insect protection, herbicide resistance, virus resistance, enhanced nutrition, tolerance to environmental pressures and the production of edible vaccines. Most commercialised GMOs are insect resistant or herbicide tolerant crop plants. Genetically modified animals have been used for research, model animals and the production of agricultural or pharmaceutical products. The genetically modified animals include animals with genes knocked out, increased susceptibility to disease, hormones for extra growth and the ability to express proteins in their milk. Genetic engineering has many applications to medicine that include the manufacturing of drugs, creation of model animals that mimic human conditions and gene therapy. One of the earliest uses of genetic engineering was to mass-produce human insulin in bacteria. This application has now been applied to human growth hormones, follicle stimulating hormones (for treating infertility), human albumin, monoclonal antibodies, antihemophilic factors, vaccines and many other drugs. Mouse hybridomas, cells fused together to create monoclonal antibodies, have been adapted through genetic engineering to create human monoclonal antibodies. Genetically engineered viruses are being developed that can still confer immunity, but lack the infectious sequences. Genetic engineering is also used to create animal models of human diseases. Genetically modified mice are the most common genetically engineered animal model. They have been used to study and model cancer (the oncomouse), obesity, heart disease, diabetes, arthritis, substance abuse, anxiety, aging and Parkinson disease. Potential cures can be tested against these mouse models. Gene therapy is the genetic engineering of humans, generally by replacing defective genes with effective ones. Clinical research using somatic gene therapy has been conducted with several diseases, including X-linked SCID, chronic lymphocytic leukemia (CLL), and Parkinson's disease. In 2012, Alipogene tiparvovec became the first gene therapy treatment to be approved for clinical use. In 2015 a virus was used to insert a healthy gene into the skin cells of a boy suffering from a rare skin disease, epidermolysis bullosa, in order to grow, and then graft healthy skin onto 80 percent of the boy's body which was affected by the illness. Germline gene therapy would result in any change being inheritable, which has raised concerns within the scientific community. In 2015, CRISPR was used to edit the DNA of non-viable human embryos, leading scientists of major world academies to call for a moratorium on inheritable human genome edits. There are also concerns that the technology could be used not just for treatment, but for enhancement, modification or alteration of a human beings' appearance, adaptability, intelligence, character or behavior. The distinction between cure and enhancement can also be difficult to establish. In November 2018, He Jiankui announced that he had edited the genomes of two human embryos, to attempt to disable the CCR5 gene, which codes for a receptor that HIV uses to enter cells. The work was widely condemned as unethical, dangerous, and premature. Currently, germline modification is banned in 40 countries. Scientists that do this type of research will often let embryos grow for a few days without allowing it to develop into a baby. Researchers are altering the genome of pigs to induce the growth of human organs, with the aim of increasing the success of pig to human organ transplantation. Scientists are creating "gene drives", changing the genomes of mosquitoes to make them immune to malaria, and then looking to spread the genetically altered mosquitoes throughout the mosquito population in the hopes of eliminating the disease. Genetic engineering is an important tool for natural scientists, with the creation of transgenic organisms one of the most important tools for analysis of gene function. Genes and other genetic information from a wide range of organisms can be inserted into bacteria for storage and modification, creating genetically modified bacteria in the process. Bacteria are cheap, easy to grow, clonal, multiply quickly, relatively easy to transform and can be stored at -80 °C almost indefinitely. Once a gene is isolated it can be stored inside the bacteria providing an unlimited supply for research. Organisms are genetically engineered to discover the functions of certain genes. This could be the effect on the phenotype of the organism, where the gene is expressed or what other genes it interacts with. These experiments generally involve loss of function, gain of function, tracking and expression. Organisms can have their cells transformed with a gene coding for a useful protein, such as an enzyme, so that they will overexpress the desired protein. Mass quantities of the protein can then be manufactured by growing the transformed organism in bioreactor equipment using industrial fermentation, and then purifying the protein. Some genes do not work well in bacteria, so yeast, insect cells or mammalian cells can also be used. These techniques are used to produce medicines such as insulin, human growth hormone, and vaccines, supplements such as tryptophan, aid in the production of food (chymosin in cheese making) and fuels. Other applications with genetically engineered bacteria could involve making them perform tasks outside their natural cycle, such as making biofuels, cleaning up oil spills, carbon and other toxic waste and detecting arsenic in drinking water. Certain genetically modified microbes can also be used in biomining and bioremediation, due to their ability to extract heavy metals from their environment and incorporate them into compounds that are more easily recoverable. In materials science, a genetically modified virus has been used in a research laboratory as a scaffold for assembling a more environmentally friendly lithium-ion battery. Bacteria have also been engineered to function as sensors by expressing a fluorescent protein under certain environmental conditions. One of the best-known and controversial applications of genetic engineering is the creation and use of genetically modified crops or genetically modified livestock to produce genetically modified food. Crops have been developed to increase production, increase tolerance to abiotic stresses, alter the composition of the food, or to produce novel products. The first crops to be released commercially on a large scale provided protection from insect pests or tolerance to herbicides. Fungal and virus resistant crops have also been developed or are in development. This makes the insect and weed management of crops easier and can indirectly increase crop yield. GM crops that directly improve yield by accelerating growth or making the plant more hardy (by improving salt, cold or drought tolerance) are also under development. In 2016 Salmon have been genetically modified with growth hormones to reach normal adult size much faster. GMOs have been developed that modify the quality of produce by increasing the nutritional value or providing more industrially useful qualities or quantities. The Amflora potato produces a more industrially useful blend of starches. Soybeans and canola have been genetically modified to produce more healthy oils. The first commercialised GM food was a tomato that had delayed ripening, increasing its shelf life. Plants and animals have been engineered to produce materials they do not normally make. Pharming uses crops and animals as bioreactors to produce vaccines, drug intermediates, or the drugs themselves; the useful product is purified from the harvest and then used in the standard pharmaceutical production process. Cows and goats have been engineered to express drugs and other proteins in their milk, and in 2009 the FDA approved a drug produced in goat milk. Genetic engineering has potential applications in conservation and natural area management. Gene transfer through viral vectors has been proposed as a means of controlling invasive species as well as vaccinating threatened fauna from disease. Transgenic trees have been suggested as a way to confer resistance to pathogens in wild populations. With the increasing risks of maladaptation in organisms as a result of climate change and other perturbations, facilitated adaptation through gene tweaking could be one solution to reducing extinction risks. Applications of genetic engineering in conservation are thus far mostly theoretical and have yet to be put into practice. Genetic engineering is also being used to create microbial art. Some bacteria have been genetically engineered to create black and white photographs. Novelty items such as lavender-colored carnations, blue roses, and glowing fish have also been produced through genetic engineering. The regulation of genetic engineering concerns the approaches taken by governments to assess and manage the risks associated with the development and release of GMOs. The development of a regulatory framework began in 1975, at Asilomar, California. The Asilomar meeting recommended a set of voluntary guidelines regarding the use of recombinant technology. As the technology improved the US established a committee at the Office of Science and Technology, which assigned regulatory approval of GM food to the USDA, FDA and EPA. The Cartagena Protocol on Biosafety, an international treaty that governs the transfer, handling, and use of GMOs, was adopted on 29 January 2000. One hundred and fifty-seven countries are members of the Protocol, and many use it as a reference point for their own regulations. The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation. Some countries allow the import of GM food with authorisation, but either do not allow its cultivation (Russia, Norway, Israel) or have provisions for cultivation even though no GM products are yet produced (Japan, South Korea). Most countries that do not allow GMO cultivation do permit research. Some of the most marked differences occur between the US and Europe. The US policy focuses on the product (not the process), only looks at verifiable scientific risks and uses the concept of substantial equivalence. The European Union by contrast has possibly the most stringent GMO regulations in the world. All GMOs, along with irradiated food, are considered "new food" and subject to extensive, case-by-case, science-based food evaluation by the European Food Safety Authority. The criteria for authorisation fall in four broad categories: "safety", "freedom of choice", "labelling", and "traceability". The level of regulation in other countries that cultivate GMOs lie in between Europe and the United States. One of the key issues concerning regulators is whether GM products should be labeled. The European Commission says that mandatory labeling and traceability are needed to allow for informed choice, avoid potential false advertising and facilitate the withdrawal of products if adverse effects on health or the environment are discovered. The American Medical Association and the American Association for the Advancement of Science say that absent scientific evidence of harm even voluntary labeling is misleading and will falsely alarm consumers. Labeling of GMO products in the marketplace is required in 64 countries. Labeling can be mandatory up to a threshold GM content level (which varies between countries) or voluntary. In Canada and the US labeling of GM food is voluntary, while in Europe all food (including processed food) or feed which contains greater than 0.9% of approved GMOs must be labelled. Critics have objected to the use of genetic engineering on several grounds, including ethical, ecological and economic concerns. Many of these concerns involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. These controversies have led to litigation, international trade disputes, and protests, and to restrictive regulation of commercial products in some countries. Accusations that scientists are "playing God" and other religious issues have been ascribed to the technology from the beginning. Other ethical issues raised include the patenting of life, the use of intellectual property rights, the level of labeling on products, control of the food supply and the objectivity of the regulatory process. Although doubts have been raised, economically most studies have found growing GM crops to be beneficial to farmers. Gene flow between GM crops and compatible plants, along with increased use of selective herbicides, can increase the risk of "superweeds" developing. Other environmental concerns involve potential impacts on non-target organisms, including soil microbes, and an increase in secondary and resistant insect pests. Many of the environmental impacts regarding GM crops may take many years to be understood and are also evident in conventional agriculture practices. With the commercialisation of genetically modified fish there are concerns over what the environmental consequences will be if they escape. There are three main concerns over the safety of genetically modified food: whether they may provoke an allergic reaction; whether the genes could transfer from the food into human cells; and whether the genes not approved for human consumption could outcross to other crops. There is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are less likely than scientists to perceive GM foods as safe. Genetic engineering features in many science fiction stories. Frank Herbert's novel The White Plague describes the deliberate use of genetic engineering to create a pathogen which specifically kills women. Another of Herbert's creations, the Dune series of novels, uses genetic engineering to create the powerful Tleilaxu. Few films have informed audiences about genetic engineering, with the exception of the 1978 The Boys from Brazil and the 1993 Jurassic Park, both of which make use of a lesson, a demonstration, and a clip of scientific film. Genetic engineering methods are weakly represented in film; Michael Clark, writing for the Wellcome Trust, calls the portrayal of genetic engineering and biotechnology "seriously distorted" in films such as The 6th Day. In Clark's view, the biotechnology is typically "given fantastic but visually arresting forms" while the science is either relegated to the background or fictionalised to suit a young audience. In the 2007 video game, BioShock, genetic engineering plays an important role in the central storyline and universe. The game takes place in the fictional underwater dystopia Rapture, in which its inhabitants possess genetic superhuman abilities after injecting themselves with "plasmids", a serum which grants such powers. Also in the city of Rapture are "Little Sisters", little girls who are generically engineered, as well as a side-plot in which a cabaret singer sells her foetus to genetic scientists who implant false memories into the newborn and genetically engineer it to grow into an adult.
[ { "paragraph_id": 0, "text": "Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novel organisms. New DNA is obtained by either isolating and copying the genetic material of interest using recombinant DNA methods or by artificially synthesising the DNA. A construct is usually created and used to insert this DNA into the host organism. The first recombinant DNA molecule was made by Paul Berg in 1972 by combining DNA from the monkey virus SV40 with the lambda virus. As well as inserting genes, the process can be used to remove, or \"knock out\", genes. The new DNA can be inserted randomly, or targeted to a specific part of the genome.", "title": "" }, { "paragraph_id": 1, "text": "An organism that is generated through genetic engineering is considered to be genetically modified (GM) and the resulting entity is a genetically modified organism (GMO). The first GMO was a bacterium generated by Herbert Boyer and Stanley Cohen in 1973. Rudolf Jaenisch created the first GM animal when he inserted foreign DNA into a mouse in 1974. The first company to focus on genetic engineering, Genentech, was founded in 1976 and started the production of human proteins. Genetically engineered human insulin was produced in 1978 and insulin-producing bacteria were commercialised in 1982. Genetically modified food has been sold since 1994, with the release of the Flavr Savr tomato. The Flavr Savr was engineered to have a longer shelf life, but most current GM crops are modified to increase resistance to insects and herbicides. GloFish, the first GMO designed as a pet, was sold in the United States in December 2003. In 2016 salmon modified with a growth hormone were sold.", "title": "" }, { "paragraph_id": 2, "text": "Genetic engineering has been applied in numerous fields including research, medicine, industrial biotechnology and agriculture. In research, GMOs are used to study gene function and expression through loss of function, gain of function, tracking and expression experiments. By knocking out genes responsible for certain conditions it is possible to create animal model organisms of human diseases. As well as producing hormones, vaccines and other drugs, genetic engineering has the potential to cure genetic diseases through gene therapy. The same techniques that are used to produce drugs can also have industrial applications such as producing enzymes for laundry detergent, cheeses and other products.", "title": "" }, { "paragraph_id": 3, "text": "The rise of commercialised genetically modified crops has provided economic benefit to farmers in many different countries, but has also been the source of most of the controversy surrounding the technology. This has been present since its early use; the first field trials were destroyed by anti-GM activists. Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, critics consider GM food safety a leading concern. Gene flow, impact on non-target organisms, control of the food supply and intellectual property rights have also been raised as potential issues. These concerns have led to the development of a regulatory framework, which started in 1975. It has led to an international treaty, the Cartagena Protocol on Biosafety, that was adopted in 2000. Individual countries have developed their own regulatory systems regarding GMOs, with the most marked differences occurring between the US and Europe.", "title": "" }, { "paragraph_id": 4, "text": "Genetic engineering: Process of inserting new genetic information into existing cells in order to modify a specific organism for the purpose of changing its characteristics.", "title": "" }, { "paragraph_id": 5, "text": "Note: Adapted from ref.", "title": "" }, { "paragraph_id": 6, "text": "Genetic engineering is a process that alters the genetic structure of an organism by either removing or introducing DNA, or modifying existing genetic material in situ. Unlike traditional animal and plant breeding, which involves doing multiple crosses and then selecting for the organism with the desired phenotype, genetic engineering takes the gene directly from one organism and delivers it to the other. This is much faster, can be used to insert any genes from any organism (even ones from different domains) and prevents other undesirable genes from also being added.", "title": "Overview" }, { "paragraph_id": 7, "text": "Genetic engineering could potentially fix severe genetic disorders in humans by replacing the defective gene with a functioning one. It is an important tool in research that allows the function of specific genes to be studied. Drugs, vaccines and other products have been harvested from organisms engineered to produce them. Crops have been developed that aid food security by increasing yield, nutritional value and tolerance to environmental stresses.", "title": "Overview" }, { "paragraph_id": 8, "text": "The DNA can be introduced directly into the host organism or into a cell that is then fused or hybridised with the host. This relies on recombinant nucleic acid techniques to form new combinations of heritable genetic material followed by the incorporation of that material either indirectly through a vector system or directly through micro-injection, macro-injection or micro-encapsulation.", "title": "Overview" }, { "paragraph_id": 9, "text": "Genetic engineering does not normally include traditional breeding, in vitro fertilisation, induction of polyploidy, mutagenesis and cell fusion techniques that do not use recombinant nucleic acids or a genetically modified organism in the process. However, some broad definitions of genetic engineering include selective breeding. Cloning and stem cell research, although not considered genetic engineering, are closely related and genetic engineering can be used within them. Synthetic biology is an emerging discipline that takes genetic engineering a step further by introducing artificially synthesised material into an organism.", "title": "Overview" }, { "paragraph_id": 10, "text": "Plants, animals or microorganisms that have been changed through genetic engineering are termed genetically modified organisms or GMOs. If genetic material from another species is added to the host, the resulting organism is called transgenic. If genetic material from the same species or a species that can naturally breed with the host is used the resulting organism is called cisgenic. If genetic engineering is used to remove genetic material from the target organism the resulting organism is termed a knockout organism. In Europe genetic modification is synonymous with genetic engineering while within the United States of America and Canada genetic modification can also be used to refer to more conventional breeding methods.", "title": "Overview" }, { "paragraph_id": 11, "text": "Humans have altered the genomes of species for thousands of years through selective breeding, or artificial selection as contrasted with natural selection. More recently, mutation breeding has used exposure to chemicals or radiation to produce a high frequency of random mutations, for selective breeding purposes. Genetic engineering as the direct manipulation of DNA by humans outside breeding and mutations has only existed since the 1970s. The term \"genetic engineering\" was first coined by the Russian-born geneticist Nikolay Timofeev-Ressovsky in his 1934 paper \"The Experimental Production of Mutations\", published in the British journal Biological Reviews. Jack Williamson used the term in his science fiction novel Dragon's Island, published in 1951 – one year before DNA's role in heredity was confirmed by Alfred Hershey and Martha Chase, and two years before James Watson and Francis Crick showed that the DNA molecule has a double-helix structure – though the general concept of direct genetic manipulation was explored in rudimentary form in Stanley G. Weinbaum's 1936 science fiction story Proteus Island.", "title": "History" }, { "paragraph_id": 12, "text": "In 1972, Paul Berg created the first recombinant DNA molecules by combining DNA from the monkey virus SV40 with that of the lambda virus. In 1973 Herbert Boyer and Stanley Cohen created the first transgenic organism by inserting antibiotic resistance genes into the plasmid of an Escherichia coli bacterium. A year later Rudolf Jaenisch created a transgenic mouse by introducing foreign DNA into its embryo, making it the world's first transgenic animal These achievements led to concerns in the scientific community about potential risks from genetic engineering, which were first discussed in depth at the Asilomar Conference in 1975. One of the main recommendations from this meeting was that government oversight of recombinant DNA research should be established until the technology was deemed safe.", "title": "History" }, { "paragraph_id": 13, "text": "In 1976 Genentech, the first genetic engineering company, was founded by Herbert Boyer and Robert Swanson and a year later the company produced a human protein (somatostatin) in E. coli. Genentech announced the production of genetically engineered human insulin in 1978. In 1980, the U.S. Supreme Court in the Diamond v. Chakrabarty case ruled that genetically altered life could be patented. The insulin produced by bacteria was approved for release by the Food and Drug Administration (FDA) in 1982.", "title": "History" }, { "paragraph_id": 14, "text": "In 1983, a biotech company, Advanced Genetic Sciences (AGS) applied for U.S. government authorisation to perform field tests with the ice-minus strain of Pseudomonas syringae to protect crops from frost, but environmental groups and protestors delayed the field tests for four years with legal challenges. In 1987, the ice-minus strain of P. syringae became the first genetically modified organism (GMO) to be released into the environment when a strawberry field and a potato field in California were sprayed with it. Both test fields were attacked by activist groups the night before the tests occurred: \"The world's first trial site attracted the world's first field trasher\".", "title": "History" }, { "paragraph_id": 15, "text": "The first field trials of genetically engineered plants occurred in France and the US in 1986, tobacco plants were engineered to be resistant to herbicides. The People's Republic of China was the first country to commercialise transgenic plants, introducing a virus-resistant tobacco in 1992. In 1994 Calgene attained approval to commercially release the first genetically modified food, the Flavr Savr, a tomato engineered to have a longer shelf life. In 1994, the European Union approved tobacco engineered to be resistant to the herbicide bromoxynil, making it the first genetically engineered crop commercialised in Europe. In 1995, Bt potato was approved safe by the Environmental Protection Agency, after having been approved by the FDA, making it the first pesticide producing crop to be approved in the US. In 2009 11 transgenic crops were grown commercially in 25 countries, the largest of which by area grown were the US, Brazil, Argentina, India, Canada, China, Paraguay and South Africa.", "title": "History" }, { "paragraph_id": 16, "text": "In 2010, scientists at the J. Craig Venter Institute created the first synthetic genome and inserted it into an empty bacterial cell. The resulting bacterium, named Mycoplasma laboratorium, could replicate and produce proteins. Four years later this was taken a step further when a bacterium was developed that replicated a plasmid containing a unique base pair, creating the first organism engineered to use an expanded genetic alphabet. In 2012, Jennifer Doudna and Emmanuelle Charpentier collaborated to develop the CRISPR/Cas9 system, a technique which can be used to easily and specifically alter the genome of almost any organism.", "title": "History" }, { "paragraph_id": 17, "text": "Creating a GMO is a multi-step process. Genetic engineers must first choose what gene they wish to insert into the organism. This is driven by what the aim is for the resultant organism and is built on earlier research. Genetic screens can be carried out to determine potential genes and further tests then used to identify the best candidates. The development of microarrays, transcriptomics and genome sequencing has made it much easier to find suitable genes. Luck also plays its part; the Roundup Ready gene was discovered after scientists noticed a bacterium thriving in the presence of the herbicide.", "title": "Process" }, { "paragraph_id": 18, "text": "The next step is to isolate the candidate gene. The cell containing the gene is opened and the DNA is purified. The gene is separated by using restriction enzymes to cut the DNA into fragments or polymerase chain reaction (PCR) to amplify up the gene segment. These segments can then be extracted through gel electrophoresis. If the chosen gene or the donor organism's genome has been well studied it may already be accessible from a genetic library. If the DNA sequence is known, but no copies of the gene are available, it can also be artificially synthesised. Once isolated the gene is ligated into a plasmid that is then inserted into a bacterium. The plasmid is replicated when the bacteria divide, ensuring unlimited copies of the gene are available. The RK2 plasmid is notable for its ability to replicate in a wide variety of single-celled organisms, which makes it suitable as a genetic engineering tool.", "title": "Process" }, { "paragraph_id": 19, "text": "Before the gene is inserted into the target organism it must be combined with other genetic elements. These include a promoter and terminator region, which initiate and end transcription. A selectable marker gene is added, which in most cases confers antibiotic resistance, so researchers can easily determine which cells have been successfully transformed. The gene can also be modified at this stage for better expression or effectiveness. These manipulations are carried out using recombinant DNA techniques, such as restriction digests, ligations and molecular cloning.", "title": "Process" }, { "paragraph_id": 20, "text": "There are a number of techniques used to insert genetic material into the host genome. Some bacteria can naturally take up foreign DNA. This ability can be induced in other bacteria via stress (e.g. thermal or electric shock), which increases the cell membrane's permeability to DNA; up-taken DNA can either integrate with the genome or exist as extrachromosomal DNA. DNA is generally inserted into animal cells using microinjection, where it can be injected through the cell's nuclear envelope directly into the nucleus, or through the use of viral vectors.", "title": "Process" }, { "paragraph_id": 21, "text": "Plant genomes can be engineered by physical methods or by use of Agrobacterium for the delivery of sequences hosted in T-DNA binary vectors. In plants the DNA is often inserted using Agrobacterium-mediated transformation, taking advantage of the Agrobacteriums T-DNA sequence that allows natural insertion of genetic material into plant cells. Other methods include biolistics, where particles of gold or tungsten are coated with DNA and then shot into young plant cells, and electroporation, which involves using an electric shock to make the cell membrane permeable to plasmid DNA.", "title": "Process" }, { "paragraph_id": 22, "text": "As only a single cell is transformed with genetic material, the organism must be regenerated from that single cell. In plants this is accomplished through the use of tissue culture. In animals it is necessary to ensure that the inserted DNA is present in the embryonic stem cells. Bacteria consist of a single cell and reproduce clonally so regeneration is not necessary. Selectable markers are used to easily differentiate transformed from untransformed cells. These markers are usually present in the transgenic organism, although a number of strategies have been developed that can remove the selectable marker from the mature transgenic plant.", "title": "Process" }, { "paragraph_id": 23, "text": "Further testing using PCR, Southern hybridization, and DNA sequencing is conducted to confirm that an organism contains the new gene. These tests can also confirm the chromosomal location and copy number of the inserted gene. The presence of the gene does not guarantee it will be expressed at appropriate levels in the target tissue so methods that look for and measure the gene products (RNA and protein) are also used. These include northern hybridisation, quantitative RT-PCR, Western blot, immunofluorescence, ELISA and phenotypic analysis.", "title": "Process" }, { "paragraph_id": 24, "text": "The new genetic material can be inserted randomly within the host genome or targeted to a specific location. The technique of gene targeting uses homologous recombination to make desired changes to a specific endogenous gene. This tends to occur at a relatively low frequency in plants and animals and generally requires the use of selectable markers. The frequency of gene targeting can be greatly enhanced through genome editing. Genome editing uses artificially engineered nucleases that create specific double-stranded breaks at desired locations in the genome, and use the cell's endogenous mechanisms to repair the induced break by the natural processes of homologous recombination and nonhomologous end-joining. There are four families of engineered nucleases: meganucleases, zinc finger nucleases, transcription activator-like effector nucleases (TALENs), and the Cas9-guideRNA system (adapted from CRISPR). TALEN and CRISPR are the two most commonly used and each has its own advantages. TALENs have greater target specificity, while CRISPR is easier to design and more efficient. In addition to enhancing gene targeting, engineered nucleases can be used to introduce mutations at endogenous genes that generate a gene knockout.", "title": "Process" }, { "paragraph_id": 25, "text": "Genetic engineering has applications in medicine, research, industry and agriculture and can be used on a wide range of plants, animals and microorganisms. Bacteria, the first organisms to be genetically modified, can have plasmid DNA inserted containing new genes that code for medicines or enzymes that process food and other substrates. Plants have been modified for insect protection, herbicide resistance, virus resistance, enhanced nutrition, tolerance to environmental pressures and the production of edible vaccines. Most commercialised GMOs are insect resistant or herbicide tolerant crop plants. Genetically modified animals have been used for research, model animals and the production of agricultural or pharmaceutical products. The genetically modified animals include animals with genes knocked out, increased susceptibility to disease, hormones for extra growth and the ability to express proteins in their milk.", "title": "Applications" }, { "paragraph_id": 26, "text": "Genetic engineering has many applications to medicine that include the manufacturing of drugs, creation of model animals that mimic human conditions and gene therapy. One of the earliest uses of genetic engineering was to mass-produce human insulin in bacteria. This application has now been applied to human growth hormones, follicle stimulating hormones (for treating infertility), human albumin, monoclonal antibodies, antihemophilic factors, vaccines and many other drugs. Mouse hybridomas, cells fused together to create monoclonal antibodies, have been adapted through genetic engineering to create human monoclonal antibodies. Genetically engineered viruses are being developed that can still confer immunity, but lack the infectious sequences.", "title": "Applications" }, { "paragraph_id": 27, "text": "Genetic engineering is also used to create animal models of human diseases. Genetically modified mice are the most common genetically engineered animal model. They have been used to study and model cancer (the oncomouse), obesity, heart disease, diabetes, arthritis, substance abuse, anxiety, aging and Parkinson disease. Potential cures can be tested against these mouse models.", "title": "Applications" }, { "paragraph_id": 28, "text": "Gene therapy is the genetic engineering of humans, generally by replacing defective genes with effective ones. Clinical research using somatic gene therapy has been conducted with several diseases, including X-linked SCID, chronic lymphocytic leukemia (CLL), and Parkinson's disease. In 2012, Alipogene tiparvovec became the first gene therapy treatment to be approved for clinical use. In 2015 a virus was used to insert a healthy gene into the skin cells of a boy suffering from a rare skin disease, epidermolysis bullosa, in order to grow, and then graft healthy skin onto 80 percent of the boy's body which was affected by the illness.", "title": "Applications" }, { "paragraph_id": 29, "text": "Germline gene therapy would result in any change being inheritable, which has raised concerns within the scientific community. In 2015, CRISPR was used to edit the DNA of non-viable human embryos, leading scientists of major world academies to call for a moratorium on inheritable human genome edits. There are also concerns that the technology could be used not just for treatment, but for enhancement, modification or alteration of a human beings' appearance, adaptability, intelligence, character or behavior. The distinction between cure and enhancement can also be difficult to establish. In November 2018, He Jiankui announced that he had edited the genomes of two human embryos, to attempt to disable the CCR5 gene, which codes for a receptor that HIV uses to enter cells. The work was widely condemned as unethical, dangerous, and premature. Currently, germline modification is banned in 40 countries. Scientists that do this type of research will often let embryos grow for a few days without allowing it to develop into a baby.", "title": "Applications" }, { "paragraph_id": 30, "text": "Researchers are altering the genome of pigs to induce the growth of human organs, with the aim of increasing the success of pig to human organ transplantation. Scientists are creating \"gene drives\", changing the genomes of mosquitoes to make them immune to malaria, and then looking to spread the genetically altered mosquitoes throughout the mosquito population in the hopes of eliminating the disease.", "title": "Applications" }, { "paragraph_id": 31, "text": "Genetic engineering is an important tool for natural scientists, with the creation of transgenic organisms one of the most important tools for analysis of gene function. Genes and other genetic information from a wide range of organisms can be inserted into bacteria for storage and modification, creating genetically modified bacteria in the process. Bacteria are cheap, easy to grow, clonal, multiply quickly, relatively easy to transform and can be stored at -80 °C almost indefinitely. Once a gene is isolated it can be stored inside the bacteria providing an unlimited supply for research.", "title": "Applications" }, { "paragraph_id": 32, "text": "Organisms are genetically engineered to discover the functions of certain genes. This could be the effect on the phenotype of the organism, where the gene is expressed or what other genes it interacts with. These experiments generally involve loss of function, gain of function, tracking and expression.", "title": "Applications" }, { "paragraph_id": 33, "text": "Organisms can have their cells transformed with a gene coding for a useful protein, such as an enzyme, so that they will overexpress the desired protein. Mass quantities of the protein can then be manufactured by growing the transformed organism in bioreactor equipment using industrial fermentation, and then purifying the protein. Some genes do not work well in bacteria, so yeast, insect cells or mammalian cells can also be used. These techniques are used to produce medicines such as insulin, human growth hormone, and vaccines, supplements such as tryptophan, aid in the production of food (chymosin in cheese making) and fuels. Other applications with genetically engineered bacteria could involve making them perform tasks outside their natural cycle, such as making biofuels, cleaning up oil spills, carbon and other toxic waste and detecting arsenic in drinking water. Certain genetically modified microbes can also be used in biomining and bioremediation, due to their ability to extract heavy metals from their environment and incorporate them into compounds that are more easily recoverable.", "title": "Applications" }, { "paragraph_id": 34, "text": "In materials science, a genetically modified virus has been used in a research laboratory as a scaffold for assembling a more environmentally friendly lithium-ion battery. Bacteria have also been engineered to function as sensors by expressing a fluorescent protein under certain environmental conditions.", "title": "Applications" }, { "paragraph_id": 35, "text": "One of the best-known and controversial applications of genetic engineering is the creation and use of genetically modified crops or genetically modified livestock to produce genetically modified food. Crops have been developed to increase production, increase tolerance to abiotic stresses, alter the composition of the food, or to produce novel products.", "title": "Applications" }, { "paragraph_id": 36, "text": "The first crops to be released commercially on a large scale provided protection from insect pests or tolerance to herbicides. Fungal and virus resistant crops have also been developed or are in development. This makes the insect and weed management of crops easier and can indirectly increase crop yield. GM crops that directly improve yield by accelerating growth or making the plant more hardy (by improving salt, cold or drought tolerance) are also under development. In 2016 Salmon have been genetically modified with growth hormones to reach normal adult size much faster.", "title": "Applications" }, { "paragraph_id": 37, "text": "GMOs have been developed that modify the quality of produce by increasing the nutritional value or providing more industrially useful qualities or quantities. The Amflora potato produces a more industrially useful blend of starches. Soybeans and canola have been genetically modified to produce more healthy oils. The first commercialised GM food was a tomato that had delayed ripening, increasing its shelf life.", "title": "Applications" }, { "paragraph_id": 38, "text": "Plants and animals have been engineered to produce materials they do not normally make. Pharming uses crops and animals as bioreactors to produce vaccines, drug intermediates, or the drugs themselves; the useful product is purified from the harvest and then used in the standard pharmaceutical production process. Cows and goats have been engineered to express drugs and other proteins in their milk, and in 2009 the FDA approved a drug produced in goat milk.", "title": "Applications" }, { "paragraph_id": 39, "text": "Genetic engineering has potential applications in conservation and natural area management. Gene transfer through viral vectors has been proposed as a means of controlling invasive species as well as vaccinating threatened fauna from disease. Transgenic trees have been suggested as a way to confer resistance to pathogens in wild populations. With the increasing risks of maladaptation in organisms as a result of climate change and other perturbations, facilitated adaptation through gene tweaking could be one solution to reducing extinction risks. Applications of genetic engineering in conservation are thus far mostly theoretical and have yet to be put into practice.", "title": "Applications" }, { "paragraph_id": 40, "text": "Genetic engineering is also being used to create microbial art. Some bacteria have been genetically engineered to create black and white photographs. Novelty items such as lavender-colored carnations, blue roses, and glowing fish have also been produced through genetic engineering.", "title": "Applications" }, { "paragraph_id": 41, "text": "The regulation of genetic engineering concerns the approaches taken by governments to assess and manage the risks associated with the development and release of GMOs. The development of a regulatory framework began in 1975, at Asilomar, California. The Asilomar meeting recommended a set of voluntary guidelines regarding the use of recombinant technology. As the technology improved the US established a committee at the Office of Science and Technology, which assigned regulatory approval of GM food to the USDA, FDA and EPA. The Cartagena Protocol on Biosafety, an international treaty that governs the transfer, handling, and use of GMOs, was adopted on 29 January 2000. One hundred and fifty-seven countries are members of the Protocol, and many use it as a reference point for their own regulations.", "title": "Regulation" }, { "paragraph_id": 42, "text": "The legal and regulatory status of GM foods varies by country, with some nations banning or restricting them, and others permitting them with widely differing degrees of regulation. Some countries allow the import of GM food with authorisation, but either do not allow its cultivation (Russia, Norway, Israel) or have provisions for cultivation even though no GM products are yet produced (Japan, South Korea). Most countries that do not allow GMO cultivation do permit research. Some of the most marked differences occur between the US and Europe. The US policy focuses on the product (not the process), only looks at verifiable scientific risks and uses the concept of substantial equivalence. The European Union by contrast has possibly the most stringent GMO regulations in the world. All GMOs, along with irradiated food, are considered \"new food\" and subject to extensive, case-by-case, science-based food evaluation by the European Food Safety Authority. The criteria for authorisation fall in four broad categories: \"safety\", \"freedom of choice\", \"labelling\", and \"traceability\". The level of regulation in other countries that cultivate GMOs lie in between Europe and the United States.", "title": "Regulation" }, { "paragraph_id": 43, "text": "One of the key issues concerning regulators is whether GM products should be labeled. The European Commission says that mandatory labeling and traceability are needed to allow for informed choice, avoid potential false advertising and facilitate the withdrawal of products if adverse effects on health or the environment are discovered. The American Medical Association and the American Association for the Advancement of Science say that absent scientific evidence of harm even voluntary labeling is misleading and will falsely alarm consumers. Labeling of GMO products in the marketplace is required in 64 countries. Labeling can be mandatory up to a threshold GM content level (which varies between countries) or voluntary. In Canada and the US labeling of GM food is voluntary, while in Europe all food (including processed food) or feed which contains greater than 0.9% of approved GMOs must be labelled.", "title": "Regulation" }, { "paragraph_id": 44, "text": "Critics have objected to the use of genetic engineering on several grounds, including ethical, ecological and economic concerns. Many of these concerns involve GM crops and whether food produced from them is safe and what impact growing them will have on the environment. These controversies have led to litigation, international trade disputes, and protests, and to restrictive regulation of commercial products in some countries.", "title": "Controversy" }, { "paragraph_id": 45, "text": "Accusations that scientists are \"playing God\" and other religious issues have been ascribed to the technology from the beginning. Other ethical issues raised include the patenting of life, the use of intellectual property rights, the level of labeling on products, control of the food supply and the objectivity of the regulatory process. Although doubts have been raised, economically most studies have found growing GM crops to be beneficial to farmers.", "title": "Controversy" }, { "paragraph_id": 46, "text": "Gene flow between GM crops and compatible plants, along with increased use of selective herbicides, can increase the risk of \"superweeds\" developing. Other environmental concerns involve potential impacts on non-target organisms, including soil microbes, and an increase in secondary and resistant insect pests. Many of the environmental impacts regarding GM crops may take many years to be understood and are also evident in conventional agriculture practices. With the commercialisation of genetically modified fish there are concerns over what the environmental consequences will be if they escape.", "title": "Controversy" }, { "paragraph_id": 47, "text": "There are three main concerns over the safety of genetically modified food: whether they may provoke an allergic reaction; whether the genes could transfer from the food into human cells; and whether the genes not approved for human consumption could outcross to other crops. There is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, but that each GM food needs to be tested on a case-by-case basis before introduction. Nonetheless, members of the public are less likely than scientists to perceive GM foods as safe.", "title": "Controversy" }, { "paragraph_id": 48, "text": "Genetic engineering features in many science fiction stories. Frank Herbert's novel The White Plague describes the deliberate use of genetic engineering to create a pathogen which specifically kills women. Another of Herbert's creations, the Dune series of novels, uses genetic engineering to create the powerful Tleilaxu. Few films have informed audiences about genetic engineering, with the exception of the 1978 The Boys from Brazil and the 1993 Jurassic Park, both of which make use of a lesson, a demonstration, and a clip of scientific film. Genetic engineering methods are weakly represented in film; Michael Clark, writing for the Wellcome Trust, calls the portrayal of genetic engineering and biotechnology \"seriously distorted\" in films such as The 6th Day. In Clark's view, the biotechnology is typically \"given fantastic but visually arresting forms\" while the science is either relegated to the background or fictionalised to suit a young audience.", "title": "In popular culture" }, { "paragraph_id": 49, "text": "In the 2007 video game, BioShock, genetic engineering plays an important role in the central storyline and universe. The game takes place in the fictional underwater dystopia Rapture, in which its inhabitants possess genetic superhuman abilities after injecting themselves with \"plasmids\", a serum which grants such powers. Also in the city of Rapture are \"Little Sisters\", little girls who are generically engineered, as well as a side-plot in which a cabaret singer sells her foetus to genetic scientists who implant false memories into the newborn and genetically engineer it to grow into an adult.", "title": "In popular culture" } ]
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novel organisms. New DNA is obtained by either isolating and copying the genetic material of interest using recombinant DNA methods or by artificially synthesising the DNA. A construct is usually created and used to insert this DNA into the host organism. The first recombinant DNA molecule was made by Paul Berg in 1972 by combining DNA from the monkey virus SV40 with the lambda virus. As well as inserting genes, the process can be used to remove, or "knock out", genes. The new DNA can be inserted randomly, or targeted to a specific part of the genome. An organism that is generated through genetic engineering is considered to be genetically modified (GM) and the resulting entity is a genetically modified organism (GMO). The first GMO was a bacterium generated by Herbert Boyer and Stanley Cohen in 1973. Rudolf Jaenisch created the first GM animal when he inserted foreign DNA into a mouse in 1974. The first company to focus on genetic engineering, Genentech, was founded in 1976 and started the production of human proteins. Genetically engineered human insulin was produced in 1978 and insulin-producing bacteria were commercialised in 1982. Genetically modified food has been sold since 1994, with the release of the Flavr Savr tomato. The Flavr Savr was engineered to have a longer shelf life, but most current GM crops are modified to increase resistance to insects and herbicides. GloFish, the first GMO designed as a pet, was sold in the United States in December 2003. In 2016 salmon modified with a growth hormone were sold. Genetic engineering has been applied in numerous fields including research, medicine, industrial biotechnology and agriculture. In research, GMOs are used to study gene function and expression through loss of function, gain of function, tracking and expression experiments. By knocking out genes responsible for certain conditions it is possible to create animal model organisms of human diseases. As well as producing hormones, vaccines and other drugs, genetic engineering has the potential to cure genetic diseases through gene therapy. The same techniques that are used to produce drugs can also have industrial applications such as producing enzymes for laundry detergent, cheeses and other products. The rise of commercialised genetically modified crops has provided economic benefit to farmers in many different countries, but has also been the source of most of the controversy surrounding the technology. This has been present since its early use; the first field trials were destroyed by anti-GM activists. Although there is a scientific consensus that currently available food derived from GM crops poses no greater risk to human health than conventional food, critics consider GM food safety a leading concern. Gene flow, impact on non-target organisms, control of the food supply and intellectual property rights have also been raised as potential issues. These concerns have led to the development of a regulatory framework, which started in 1975. It has led to an international treaty, the Cartagena Protocol on Biosafety, that was adopted in 2000. Individual countries have developed their own regulatory systems regarding GMOs, with the most marked differences occurring between the US and Europe.
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https://en.wikipedia.org/wiki/Genetic_engineering
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Gettysburg Address
The Gettysburg Address is a speech that U.S. President Abraham Lincoln delivered during the American Civil War at the dedication of the Soldiers' National Cemetery, now known as Gettysburg National Cemetery, in Gettysburg, Pennsylvania on the afternoon of November 19, 1863, four and a half months after the Union armies defeated Confederate forces in the Battle of Gettysburg, the Civil War's deadliest battle. It remains one of the best-known speeches in American history. Lincoln's carefully crafted but brief address, which was not even scheduled as the day's primary speech, came to be seen as one of the greatest and most influential statements on the American national purpose. In just 271 words, beginning with the now famous phrase "Four score and seven years ago", referring to the signing of the Declaration of Independence 87 years earlier, Lincoln described the U.S. as a nation "conceived in Liberty, and dedicated to the proposition that all men are created equal", and represented the Civil War as a test that would determine whether such a nation could endure. Lincoln extolled the sacrifices of those who died at Gettysburg in defense of those principles, and then urged that the nation ensure: [...] that these dead shall not have died in vain—that this nation, under God, shall have a new birth of freedom—and that government of the people, by the people, for the people, shall not perish from the earth. Despite the prominent place of the speech in the history and popular culture of the United States, its exact wording is disputed. The five known manuscripts of the Gettysburg Address in Lincoln's hand differ in a number of details, and also differ from contemporary newspaper reprints of the speech. Nor is it precisely clear where, on the grounds of the Gettysburg cemetery, Lincoln delivered the address. Modern scholarship locates the speakers' platform at least 120 feet (37 m) away from the traditional site in Soldiers' National Cemetery at the Soldiers' National Monument, such that it stood entirely within the private, adjacent Evergreen Cemetery. A 2022 interpretation of photographs of the day, using 3D modeling software, has argued for a slightly different location—straddling the current fence around Evergreen Cemetery. Following the Battle of Gettysburg on July 1–3, 1863, the removal of the fallen Union soldiers from the Gettysburg Battlefield graves and their reburial in graves at the National Cemetery at Gettysburg began on October 17, though on the day of the ceremony, interment was less than half complete. In inviting President Lincoln to the ceremonies, David Wills, of the committee for the November 19 Consecration of the National Cemetery at Gettysburg, wrote, "It is the desire that, after the Oration, you, as Chief Executive of the nation, formally set apart these grounds to their sacred use by a few appropriate remarks." On the train trip from Washington, D.C. to Gettysburg on November 18, Lincoln was accompanied by three members of his Cabinet, William Seward, John Usher, and Montgomery Blair, several foreign officials, his secretary John Nicolay, and his assistant secretary, John Hay. During the trip, Lincoln remarked to Hay that he felt weak; on the morning of November 19, Lincoln mentioned to Nicolay that he was dizzy. Hay noted during the speech that Lincoln's face had "a ghastly color" and that he was "sad, mournful, almost haggard". After the speech, when Lincoln boarded the 6:30pm train to return to Washington, D.C., he was feverish and weak with a severe headache. A protracted illness followed, which included a vesicular rash; it was diagnosed as a mild case of smallpox. It is highly likely that Lincoln was in the prodromal period of smallpox as he delivered the Gettysburg Address. After arriving in Gettysburg, which had become filled with large crowds, Lincoln spent the night in Wills's house. A large crowd appeared at the house, singing and wanting Lincoln to make a speech. Lincoln met the crowd, but did not have a speech prepared, and returned inside after saying a few extemporaneous words. The crowd then continued to another house, where Secretary of State William Seward delivered a speech. Later that night, Lincoln wrote and briefly met with Seward before going to bed at about midnight. The program organized for that day by Wills and his committee included: Music, by Birgfeld's Band ("Homage d'uns Heros" by Adolph Birgfeld) Prayer, by Reverend T. H. Stockton, D.D. Music, by the Marine Band ("Old Hundred"), directed by Francis Scala Oration, by Hon. Edward Everett ("The Battles of Gettysburg") Music, Hymn ("Consecration Chant") by B. B. French, Esq., music by Wilson G Horner, sung by Baltimore Glee Club Dedicatory Remarks, by the President of the United States Dirge ("Oh! It is Great for Our Country to Die", words by James G. Percival, music by Alfred Delaney), sung by Choir selected for the occasion Benediction, by Reverend H. L. Baugher, D.D. While it is Lincoln's short speech that has gone down in history as one of the finest examples of English public oratory, it was Everett's oration that was slated to be the "Gettysburg address" that day. His now seldom-read oration was 13,607 words long and lasted two hours. Lengthy dedication addresses like Everett's were common at cemeteries in this era. The tradition began in 1831 when Justice Joseph Story delivered the dedication address at Mount Auburn Cemetery in Cambridge, Massachusetts. Those addresses often linked cemeteries to the mission of Union. Shortly after Everett's well-received remarks, Lincoln spoke for only a few minutes. With a "few appropriate remarks", he was able to summarize his view of the war in just ten sentences. Despite the historical significance of Lincoln's speech, modern scholars disagree as to its exact wording, and contemporary transcriptions published in newspaper accounts of the event and even handwritten copies by Lincoln himself differ in their wording, punctuation, and structure. Of these versions, the Bliss version, written well after the speech as a favor for a friend, is viewed by many as the standard text. Its text differs, however, from the written versions prepared by Lincoln before and after his speech. It is the only version to which Lincoln affixed his signature, and the last he is known to have written. The Bliss version is as follows: Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we can not dedicate—we can not consecrate—we can not hallow—this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us—that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion—that we here highly resolve that these dead shall not have died in vain—that this nation, under God, shall have a new birth of freedom—and that government of the people, by the people, for the people, shall not perish from the earth. —Abraham Lincoln In Lincoln at Gettysburg, Garry Wills notes the parallels between Lincoln's speech and Pericles's Funeral Oration during the Peloponnesian War as described by Thucydides. Pericles' speech, like Lincoln's: James M. McPherson notes this connection in his review of Wills's book. Gore Vidal also draws attention to this link in a BBC documentary about oration. In contrast, writer Adam Gopnik, in The New Yorker, notes that while Everett's Oration was explicitly neoclassical, referring directly to Marathon and Pericles, "Lincoln's rhetoric is, instead, deliberately Biblical. (It is difficult to find a single obviously classical reference in any of his speeches.) Lincoln had mastered the sound of the King James Bible so completely that he could recast abstract issues of constitutional law in Biblical terms, making the proposition that Texas and New Hampshire should be forever bound by a single post office sound like something right out of Genesis." Wills also observed Lincoln's usage of the imagery of birth, life, and death in reference to a nation "brought forth", "conceived", and that shall not "perish". A 1959 thesis by William J. Wolf suggested that the address had a central image of baptism, although Glenn LaFantasie, writing for the Journal of the Abraham Lincoln Association, believes that Wolf's position was likely an overstatement. Philip B. Kunhardt Jr. suggests that Lincoln was inspired by the Book of Common Prayer. Allen C. Guelzo, the director of Civil War Era studies at Gettysburg College in Pennsylvania, and others have suggested that Lincoln's formulation "four score and seven" was an allusion to the King James Version of the Bible's Psalms 90:10, in which man's lifespan is given as "threescore years and ten; and if by reason of strength they be fourscore years". LaFantasie also connected "four score and seven years" with Psalms 90:10, and referred to Lincoln's usage of the phrase "our fathers" as "mindful of the Lord's Prayer". He also refers to Garry Wills's tracing of spiritual language in the address to the Gospel of Luke. Several theories have been advanced by Lincoln scholars to explain the provenance of Lincoln's famous phrase "government of the people, by the people, for the people". Despite many claims, there is no evidence that a similar phrase appears in the Prologue to John Wycliffe's 1384 English translation of the Bible. In a discussion "A more probable origin of a famous Lincoln phrase", in a letter to The American Monthly Review of Reviews, Unitarian minister John White Chadwick points to William Herndon, Lincoln's law partner, who wrote in the 1888 work Abraham Lincoln: The True Story of A Great Life that he had brought to Lincoln some of the sermons of abolitionist minister Theodore Parker, of Massachusetts, and that Lincoln was moved by Parker's use of this idea: I brought with me additional sermons and lectures of Theodore Parker, who was warm in his commendation of Lincoln. One of these was a lecture on "The Effect of Slavery on the American People" ... which I gave to Lincoln, who read and returned it. He liked especially the following expression, which he marked with a pencil, and which he in substance afterwards used in his Gettysburg Address: "Democracy is direct self-government, over all the people, for all the people, by all the people." Craig R. Smith, in "Criticism of Political Rhetoric and Disciplinary Integrity", suggested Lincoln's view of the government as expressed in the Gettysburg Address was influenced by the noted speech of Massachusetts Senator Daniel Webster, the "Second Reply to Hayne", in which Webster famously thundered "Liberty and Union, now and forever, one and inseparable!" Specifically, in this speech on January 26, 1830, before the United States Senate, Webster described the federal government as: "made for the people, made by the people, and answerable to the people", foreshadowing Lincoln's "government of the people, by the people, for the people". Webster also noted, "This government, Sir, is the independent offspring of the popular will. It is not the creature of State legislatures; nay, more, if the whole truth must be told, the people brought it into existence, established it, and have hitherto supported it, for the very purpose, amongst others, of imposing certain salutary restraints on State sovereignties." Each of the five known manuscript copies of the Gettysburg Address is named for the person who received it from Lincoln. Lincoln gave copies to his private secretaries, John Nicolay and John Hay. Both of these drafts were written around the time of his November 19 address, while the other three copies of the address, the Everett, Bancroft, and Bliss copies, were written by Lincoln for charitable purposes well after November 19. In part because Lincoln provided a title and signed and dated the Bliss copy, it has become the standard text of Lincoln's Gettysburg Address. Nicolay and Hay were appointed custodians of Lincoln's papers by Lincoln's son Robert Todd Lincoln in 1874. After appearing in facsimile in an article written by John Nicolay in 1894, the Nicolay copy was presumably among the papers passed to Hay by Nicolay's daughter Helen upon Nicolay's death in 1901. Robert Lincoln began a search for the original copy in 1908, which resulted in the discovery of a handwritten copy of the Gettysburg Address among the bound papers of John Hay—a copy now known as the "Hay copy" or "Hay draft". The Hay draft differed from the version of the Gettysburg Address published by John Nicolay in 1894 in a number of significant ways: it was written on a different type of paper, had a different number of words per line and number of lines, and contained editorial revisions in Lincoln's hand. Both the Hay and Nicolay copies of the Address are within the Library of Congress, encased in specially designed, temperature-controlled, sealed containers with argon gas in order to protect the documents from oxidation and continued deterioration. The Nicolay copy is often called the "first draft" because it is believed to be the earliest copy that exists. Scholars disagree over whether the Nicolay copy was actually the reading copy Lincoln held at Gettysburg on November 19. In an 1894 article that included a facsimile of this copy, Nicolay, who had become the custodian of Lincoln's papers, wrote that Lincoln had brought to Gettysburg the first part of the speech written in ink on Executive Mansion stationery, and that he had written the second page in pencil on lined paper before the dedication on November 19. Matching folds are still evident on the two pages, suggesting it could be the copy that eyewitnesses say Lincoln took from his coat pocket and read at the ceremony. Others believe that the delivery text has been lost, because some of the words and phrases of the Nicolay copy do not match contemporary transcriptions of Lincoln's original speech. The words "under God", for example, are missing in this copy from the phrase "that this nation shall have a new birth of freedom ..." In order for the Nicolay draft to have been the reading copy, either the contemporary transcriptions were inaccurate, or Lincoln would have had to depart from his written text in several instances. This copy of the Gettysburg Address apparently remained in John Nicolay's possession until his death in 1901, when it passed to his friend and colleague John Hay. It used to be on display as part of the American Treasures exhibition of the Library of Congress in Washington, D.C. The existence of the Hay copy was first announced to the public in 1906, after the search for the "original manuscript" of the Address among the papers of John Hay brought it to light. Significantly, it differs somewhat from the manuscript of the Address described by John Nicolay in his article, and contains numerous omissions and inserts in Lincoln's own hand, including omissions critical to the basic meaning of the sentence, not simply words that would be added by Lincoln to strengthen or clarify their meaning. In this copy, as in the Nicolay copy, the words "under God" are not present. This version has been described as "the most inexplicable" of the drafts and is sometimes referred to as the "second draft". The "Hay copy" was made either on the morning of the delivery of the Address, or shortly after Lincoln's return to Washington. Those who believe that it was completed on the morning of his address point to the fact that it contains certain phrases that are not in the first draft but are in the reports of the address as delivered and in subsequent copies made by Lincoln. It is probable, they conclude, that, as stated in the explanatory note accompanying the original copies of the first and second drafts in the Library of Congress, Lincoln held this second draft when he delivered the address. Lincoln eventually gave this copy to Hay, whose descendants donated both it and the Nicolay copy to the Library of Congress in 1916. The Everett copy, also known as the "Everett-Keyes copy", was sent by President Lincoln to Edward Everett in early 1864, at Everett's request. Everett was collecting the speeches at the Gettysburg dedication into one bound volume to sell for the benefit of stricken soldiers at New York's Sanitary Commission Fair. The draft Lincoln sent became the third autograph copy, and is now in the possession of the Illinois State Historical Library in Springfield, Illinois, where it is displayed in the Treasures Gallery of the Abraham Lincoln Presidential Library and Museum. The Bancroft copy of the Gettysburg Address was written out by President Lincoln in February 1864 at the request of George Bancroft, the famed historian and former Secretary of the Navy, whose comprehensive ten-volume History of the United States later led him to be known as the "father of American History". Bancroft planned to include this copy in Autograph Leaves of Our Country's Authors, which he planned to sell at a Soldiers' and Sailors' Sanitary Fair in Baltimore. As this fourth copy was written on both sides of the paper, it proved unusable for this purpose, and Bancroft was allowed to keep it. This manuscript is the only one accompanied both by a letter from Lincoln transmitting the manuscript and by the original envelope addressed and franked by Lincoln. This copy remained in the Bancroft family for many years, was sold to various dealers and purchased by Nicholas and Marguerite Lilly Noyes, who donated the manuscript to Cornell University in 1949. It is now held by the Division of Rare and Manuscript Collections in the Carl A. Kroch Library at Cornell. It is the only one of the five copies to be privately owned. Discovering that his fourth written copy could not be used, Lincoln then wrote a fifth draft, which was accepted for the purpose requested. The Bliss copy, named for Colonel Alexander Bliss, Bancroft's stepson and publisher of Autograph Leaves, is the only draft to which Lincoln affixed his signature. Lincoln is not known to have made any further copies of the Gettysburg Address. Because of the apparent care in its preparation, and in part, because Lincoln provided a title and signed and dated this copy, it has become the standard version of the address and the source for most facsimile reproductions of Lincoln's Gettysburg Address. It is the version that is inscribed on the South wall of the Lincoln Memorial. This draft is now displayed in the Lincoln Room of the White House, a gift of Oscar B. Cintas, former Cuban Ambassador to the United States. Cintas, a wealthy collector of art and manuscripts, purchased the Bliss copy at a public auction in 1949 for $54,000 ($664,000 as of 2023), at that time the highest price ever paid for a document at public auction. Cintas' properties were claimed by the Castro government after the Cuban Revolution in 1959, but Cintas, who died in 1957, willed the Gettysburg Address to the American people, provided it would be kept at the White House, where it was transferred in 1959. Garry Wills concluded the Bliss copy "is stylistically preferable to others in one significant way: Lincoln removed 'here' from 'that cause for which they (here) gave ...' The seventh 'here' is in all other versions of the speech." Wills noted the fact that Lincoln "was still making such improvements", suggesting Lincoln was more concerned with a perfected text than with an "original" one. From November 21, 2008, to January 1, 2009, the Albert H. Small Documents Gallery at the Smithsonian Institution National Museum of American History hosted a limited public viewing of the Bliss copy, with the support of then-First Lady Laura Bush. The museum also launched an online exhibition and interactive gallery to enable visitors to look more closely at the document. Another contemporary source of the text is the Associated Press dispatch, transcribed from the shorthand notes taken by reporter Joseph L. Gilbert. It also differs from the drafted text in a number of minor ways. Eyewitness reports vary as to their view of Lincoln's performance. In 1931, the printed recollections of 87-year-old Mrs. Sarah A. Cooke Myers, who was 19 when she attended the ceremony, suggest a dignified silence followed Lincoln's speech: "I was close to the President and heard all of the Address, but it seemed short. Then there was an impressive silence like our Menallen Friends Meeting. There was no applause when he stopped speaking." According to historian Shelby Foote, after Lincoln's presentation, the applause was delayed, scattered, and "barely polite". In contrast, Pennsylvania Governor Andrew Gregg Curtin maintained, "He pronounced that speech in a voice that all the multitude heard. The crowd was hushed into silence because the President stood before them ... It was so Impressive! It was the common remark of everybody. Such a speech, as they said it was!" In an oft-repeated legend, Lincoln is said to have turned to his bodyguard Ward Hill Lamon and remarked that his speech, like a bad plow, "won't scour". According to Garry Wills, this statement has no basis in fact and largely originates from the unreliable recollections of Lamon. In Garry Wills's view, "[Lincoln] had done what he wanted to do [at Gettysburg]". In a letter to Lincoln written the following day, Everett praised the President for his eloquent and concise speech, saying, "I should be glad if I could flatter myself that I came as near to the central idea of the occasion, in two hours, as you did in two minutes." Lincoln replied that he was glad to know the speech was not a "total failure". Other public reaction to the speech was divided along partisan lines. The Democratic-leaning Chicago Times observed, "The cheek of every American must tingle with shame as he reads the silly, flat and dishwatery utterances of the man who has to be pointed out to intelligent foreigners as the President of the United States." In contrast, the Republican-leaning The New York Times was complimentary and printed the speech. In Massachusetts, the Springfield Republican also printed the entire speech, calling it "a perfect gem" that was "deep in feeling, compact in thought and expression, and tasteful and elegant in every word and comma". The Republican predicted that Lincoln's brief remarks would "repay further study as the model speech". In 2013, on the sesquicentennial of the address, The Patriot-News of Harrisburg, Pennsylvania, formerly the Patriot & Union, retracted its original reaction ("silly remarks" deserving "the veil of oblivion") stating: "Seven score and ten years ago, the forefathers of this media institution brought forth to its audience a judgment so flawed, so tainted by hubris, so lacking in the perspective history would bring, that it cannot remain unaddressed in our archives. ... the Patriot & Union failed to recognize [the speech's] momentous importance, timeless eloquence, and lasting significance. The Patriot-News regrets the error." Foreign newspapers also criticized Lincoln's remarks. The Times of London commented: "The ceremony [at Gettysburg] was rendered ludicrous by some of the luckless sallies of that poor President Lincoln." Congressman Joseph A. Goulden, then an eighteen-year-old school teacher, was present and heard the speech. He served in the United States Marine Corps during the war, and later had a successful career in insurance in Pennsylvania and New York City before entering Congress as a Democrat. In his later life, Goulden was often asked about the speech, since the passage of time made him one of a dwindling number of individuals who had been present for it. He commented on the event and Lincoln's speech in favorable terms, naming Lincoln's address as one of the inspirations for him to enter military service. Goulden's recollections included remarks to the House of Representatives in 1914. William R. Rathvon is the only known eyewitness of both Lincoln's arrival at Gettysburg and the address itself to have left an audio recording of his recollections. One year before his death in 1939, Rathvon's reminiscences were recorded on February 12, 1938, at the Boston studios of radio station WRUL, including his reading the address, itself, and a 78 RPM record was pressed. The title of the 78 record was "I Heard Lincoln That Day – William R. Rathvon, TR Productions". A copy wound up at National Public Radio (NPR) during a "Quest for Sound" project in 1999. Like most people who came to Gettysburg, the Rathvon family was aware that Lincoln was going to make some remarks. The family went to the town square where the procession was to form to go out to the cemetery that had not been completed yet. At the head of the procession rode Lincoln on a gray horse preceded by a military band that was the first the young boy had ever seen. Rathvon describes Lincoln as so tall and with such long legs that they went almost to the ground; he also mentions the long eloquent speech given by Edward Everett of Massachusetts whom Rathvon accurately described as the "most finished orator of the day". Rathvon then goes on to describe how Lincoln stepped forward and "with a manner serious almost to sadness, gave his brief address". During the delivery, along with some other boys, young Rathvon wiggled his way forward through the crowd until he stood within 15 feet (4.6 m) of Lincoln and looked up into what he described as his "serious face". Rathvon recalls candidly that, although he listened "intently to every word the president uttered and heard it clearly", he explains, "boylike, I could not recall any of it afterwards". But he explains that if anyone said anything disparaging about "honest Abe", there would have been a "junior battle of Gettysburg". In the recording Rathvon speaks of Lincoln's speech allegorically "echoing through the hills". The only known and confirmed photograph of Lincoln at Gettysburg, taken by photographer David Bachrach, was identified in the Mathew Brady collection of photographic plates in the National Archives and Records Administration in 1952. While Lincoln's speech was short and may have precluded multiple pictures of him while speaking, he and the other dignitaries sat for hours during the rest of the program. Given the length of Everett's speech and the length of time it took for 19th-century photographers to get "set up" before taking a picture, it is quite plausible that the photographers were ill-prepared for the brevity of Lincoln's remarks. The words "under God" do not appear in the Nicolay and Hay drafts but are included in the three later copies (Everett, Bancroft, and Bliss). Accordingly, some skeptics maintain that Lincoln did not utter the words "under God" at Gettysburg. However, at least three reporters telegraphed the text of Lincoln's speech on the day the Address was given with the words "under God" included. Historian William E. Barton argues that: Every stenographic report, good, bad and indifferent, says 'that the nation shall, under God, have a new birth of freedom.' There was no common source from which all the reporters could have obtained those words but from Lincoln's own lips at the time of delivery. It will not do to say that [Secretary of War] Stanton suggested those words after Lincoln's return to Washington, for the words were telegraphed by at least three reporters on the afternoon of the delivery. The reporters present included Joseph Gilbert, from the Associated Press; Charles Hale, from the Boston Advertiser; John R. Young (who later became the Librarian of Congress), from the Philadelphia Press; and reporters from the Cincinnati Commercial, New York Tribune, and The New York Times. Charles Hale "had notebook and pencil in hand, [and] took down the slow-spoken words of the President". "He took down what he declared was the exact language of Lincoln's address, and his declaration was as good as the oath of a court stenographer. His associates confirmed his testimony, which was received, as it deserved to be, at its face value." One explanation is that Lincoln deviated from his prepared text and inserted the phrase when he spoke. Ronald C. White, visiting professor of history at the University of California, Los Angeles and professor of American religious history emeritus at the San Francisco Theological Seminary, wrote in this context of Lincoln's insertion and usage of "under God": It was an uncharacteristically spontaneous revision for a speaker who did not trust extemporaneous speech. Lincoln had added impromptu words in several earlier speeches, but always offered a subsequent apology for the change. In this instance, he did not. And Lincoln included "under God" in all three copies of the address he prepared at later dates. "Under God" pointed backward and forward: back to "this nation", which drew its breath from both political and religious sources, but also forward to a "new birth". Lincoln had come to see the Civil War as a ritual of purification. The old Union had to die. The old man had to die. Death became a transition to a new Union and a new humanity. The phrase "under God" was used frequently in works published before 1860, usually with the meaning "with God's help". Outside of either entrance to the National Cemetery, twin historical markers read: Nearby, Nov. 19, 1863, in dedicating the National Cemetery, Abraham Lincoln gave the address which he had written in Washington and revised after his arrival at Gettysburg the evening of November 18. Directly inside the Taneytown Road entrance are the Lincoln Address Memorial and Rostrum, which has hosted speeches by five U.S. Presidents. Lincoln was not one of them, and a small metal sign near the speech memorial stirs controversy by stating: The Address was delivered about 300 yards from this spot along the upper Cemetery drive. The site is now marked by the Soldiers' National Monument. Holding title as the Traditional Site, the validity of the Soldiers' National Monument has been challenged by platform occupants (in the distant past) and by (relatively recent) photographic analyses. Based upon a pair of photographic analyses, the Gettysburg National Military Park (G.N.M.P.) has placed a marker (near 39°49.199′N 77°13.840′W) which states, "The location [of the platform] was never marked, but is believed to be in Evergreen Cemetery, on the other side of the iron fence." The observer of this newer marker stands facing the fence which separates the two adjacent cemeteries (one public and one private). Another heavy endorsement of the Traditional Site, this one in bronze and placed by Lincoln's native Commonwealth, stands nearby. Absent an original and enduring marker, the location of the platform is in the hands of rhetoricians and scholars. The Superintendent of Evergreen Cemetery, Brian Kennell, emphatically endorses the findings of William Frassanito's photographic analysis. Colonel W. Yates Selleck was a marshal in the parade on Consecration Day and was seated on the platform when Lincoln made the address. Selleck marked a map with the position of the platform and described it as "350 feet [110 m] almost due north of Soldiers' National Monument, 40 feet [12 m] from a point in the outer circle of lots where [the] Michigan and New York [burial sections] are separated by a path". A location which approximates this description is 39°49.243′N, 77°13.869′W. As pointed out in 1973 by retired park historian Frederick Tilberg, the Selleck Site is 25 feet (7.6 m) lower than the crest of Cemetery Hill, and only the crest presents a panoramic view of the battlefield. A spectacular view from the location of the speech was noted by many eyewitnesses, is consistent with the Traditional Site at the Soldiers' National Monument (and other sites on the crest) but is inconsistent with the Selleck Site. The Kentucky Memorial, erected in 1975, is directly adjacent to the Soldiers' National Monument, and states, "Kentucky honors her son, Abraham Lincoln, who delivered his immortal address at the site now marked by the soldiers' monument." With its position at the center of the concentric rings of soldiers' graves and the continuing endorsement of Lincoln's native state the Soldiers' National Monument persists as a credible location for the speech. Writing a physical description of the layout for the Gettysburg National Cemetery under construction in November 1863, the correspondent from the Cincinnati Daily Commercial described the dividing lines between the state grave plots as "the radii of a common center, where a flag pole is now raised, but where it is proposed to erect a national monument". With the inclusion of this quotation Tilberg inadvertently verifies a central principle of future photographic analyses—a flagpole, rather than the speakers' platform, occupied the central point of the soldiers' graves. In fact, the precision of the photo-analyses relies upon the coincidence of position between this temporary flag pole and the future monument. Confusing to today's tourist, the Kentucky Memorial is contradicted by a newer marker which was erected nearby by the Gettysburg National Military Park and locates the speakers' platform inside Evergreen Cemetery. Similarly, outdated National Park Service documents which pinpoint the location at the Soldiers' National Monument have not been systematically revised since the placement of the newer marker. Miscellaneous web pages perpetuate the Traditional Site. In 1982, Senior Park Historian Kathleen Georg Harrison first analyzed photographs and proposed a location in Evergreen Cemetery but has not published her analysis. Speaking for Harrison without revealing details, two sources characterize her proposed location as "on or near [the] Brown family vault" in Evergreen Cemetery. William A. Frassanito, a former military intelligence analyst, documented a comprehensive photographic analysis in 1995, and it associates the location of the platform with the position of specific modern headstones in Evergreen Cemetery. According to Frassanito, the extant graves of Israel Yount (died 1892)(39°49.180′N 77°13.845′W / 39.819667°N 77.230750°W / 39.819667; -77.230750 (grave of Israel Yount (d. 1892))), John Koch (died 1913)(39°49.184′N 77°13.847′W / 39.819733°N 77.230783°W / 39.819733; -77.230783 (grave of John Koch (d. 1913))), and George E. Kitzmiller (died 1874)(39°49.182′N 77°13.841′W / 39.819700°N 77.230683°W / 39.819700; -77.230683 (grave of George E. Kitzmiller (d. 1874))) are among those which occupy the location of the 1863 speaker's stand. Over the course of many years, an Assistant Professor of New Media at the University of North Carolina at Asheville, Christopher Oakley, and his students have labored to produce and relentlessly perfect "a lifelike virtual 3-D re-creation of Lincoln delivering the Gettysburg Address" as part of the Virtual Lincoln Project. One result was revealed when “Placing the Platform: Using 3D Technology to Pinpoint Lincoln at Gettysburg” was presented on November 18, 2022, at the Lincoln Forum XXVII in Gettysburg. As a starting point, the project modeled the topography around Cemetery Hill, the Gatehouse at Evergreen Cemetery and the documented positions of nonextant objects which appear in photographs (the poplar tree, the flag pole and the Duttera House among them) using 3-D animation software Maya. Next, the platform and its occupants were modeled. Finally, the approximate positions of the cameras were placed into the 3-D environment, and the overall model was iteratively refined. By reproducing the appearance of the four known photographs, taken distantly from one another in 1863, Lincoln and the platform have been placed in virtual reality. Oakley's model shows the platform straddling the iron fence between the Soldiers' National Cemetery and Evergreen Cemetery. It increases the size of the platform and changes its shape from rectangular, as previous researchers have maintained, to trapezoidal. Most significantly, the speaker's position occupies a portion of the platform over the grounds of the Soldiers' National Cemetery. William Frassanito's analysis is based upon two of the four photographic perspectives which were employed by Oakley to validate his 3D model. Frassanito assesses one of his sources by stating, "This view [by Weaver] was probably not taken from the second-story window of the gatehouse itself." Via enlargement of a Gardner photograph (taken from the opposite direction), John J. Richter may have identified a photographer with a camera in this exact window, thereby weakening the contribution of the Weaver photograph to Frassanito's conclusions. Oakley's proprietary 3D model utilizes the position of Weaver's camera as suggested by Richter. The GNMP marker, Wills's interpretation of Harrison's analysis, the Frassanito analysis, and the Oakley analysis concur that the platform was located entirely or mostly in private Evergreen Cemetery, rather than public Soldiers' National Cemetery. The National Park Service's National Cemetery Walking Tour brochure is one NPS document which agrees: The Soldiers' National Monument, long misidentified as the spot from which Lincoln spoke, honors the fallen soldiers. [The location of the speech] was actually on the crown of this hill, a short distance on the other side of the iron fence and inside the Evergreen Cemetery, where President Lincoln delivered the Gettysburg Address to a crowd of some 15,000 people. The locations determined by the Harrison/Wills, Frassanito, and Oakley analyses differ by approximately 40 yards. Frassanito has documented 1) his own conclusion, 2) his own methods and 3) a refutation of the Harrison site, but neither the GNMP nor Harrison has provided any documentation. Oakley's interpretation was only made public in 2022 and is still under review. Each of the four points to a location in Evergreen Cemetery, as do modern NPS publications. Although Lincoln dedicated the Gettysburg National Cemetery, the monument at the Cemetery's center actually has nothing to do with Lincoln or his famous speech. Intended to symbolize Columbia paying tribute to her fallen sons, its appreciation has been commandeered by the thirst for a tidy home for the speech. Freeing the Cemetery and Monument to serve their original purpose, honoring of Union departed, is as unlikely as a resolution to the location controversy and the erection of a public monument to the speech in the exclusively private Evergreen Cemetery. The importance of the Gettysburg Address in the history of the United States is underscored by its enduring presence in American culture. In addition to its prominent place carved into a stone cella on the south wall of the Lincoln Memorial in Washington, D.C., the Gettysburg Address is frequently referred to in works of popular culture, with the implicit expectation that contemporary audiences will be familiar with Lincoln's words. In the many generations that have passed since the Address, it has remained among the most famous speeches in American history and is often taught in classes about history or civics. Lincoln's Gettysburg Address is itself referenced in another of those famed orations, Martin Luther King Jr.'s "I Have a Dream" speech. Standing on the steps of the Lincoln Memorial in August 1963, King began with a reference, by the style of his opening phrase, to President Lincoln and his enduring words: "Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of withering injustice." Phrases from the Address are often used or referenced in other works. The current Constitution of France states that the principle of the French Republic is "gouvernement du peuple, par le peuple et pour le peuple" ("government of the people, by the people, and for the people"), a literal translation of Lincoln's words. Sun Yat-Sen's "Three Principles of the People" as well as the preamble for the 1947 Constitution of Japan were also inspired from that phrase. The aircraft carrier USS Abraham Lincoln has as its ship's motto the phrase "shall not perish". U.S. Senator Charles Sumner of Massachusetts wrote of the address and its enduring presence in American culture after Lincoln's assassination in April 1865: "That speech, uttered at the field of Gettysburg ... and now sanctified by the martyrdom of its author, is a monumental act. In the modesty of his nature he said 'the world will little note, nor long remember what we say here; but it can never forget what they did here.' He was mistaken. The world at once noted what he said, and will never cease to remember it." In January 1961 John F. Kennedy tasked his speech writer Ted Sorensen to study the Gettysburg Address in order to help him with his own inaugural address. Sorensen drew many lessons from the Gettysburg Address which according to Sorensen included rhetoric devices used by many speech writers like alliterations, rhymes, repetitions as well as contrast and balance. U.S. President John F. Kennedy stated in July 1963 about the battle and Lincoln's speech: "Five score years ago the ground on which we here stand shuddered under the clash of arms and was consecrated for all time by the blood of American manhood. Abraham Lincoln, in dedicating this great battlefield, has expressed, in words too eloquent for paraphrase or summary, why this sacrifice was necessary." In 2015, the Abraham Lincoln Presidential Library Foundation compiled Gettysburg Replies: The World Responds to Abraham Lincoln's Gettysburg Address. The work challenges leaders to craft 272 word responses to celebrate Lincoln, the Gettysburg Address, or a related topic. One of the replies was by astrophysicist Neil deGrasse Tyson in which he made the point that one of Lincoln's greatest legacies was establishing, in the same year of the Gettysburg Address, the National Academy of Sciences, which had the longterm effect of "setting our Nation on a course of scientifically enlightened governance, without which we all may perish from this Earth". A common American myth about the Gettysburg Address is that Lincoln quickly wrote the speech on the back of an envelope while on the train. This widely held misunderstanding may have originated with a popular book, The Perfect Tribute, by Mary Raymond Shipman Andrews (1906), which was assigned reading for generations of schoolchildren, sold 600,000 copies when published as a standalone volume, and was twice adapted for film. Other lesser-known claims include Harriet Beecher Stowe's assertion that Lincoln had composed the address "in only a few moments", and that of industrialist Andrew Carnegie, who claimed to have personally supplied Lincoln with a pen. A Lincoln Portrait is a classical orchestral work written by the American composer Aaron Copland in which the closing phrases of the Gettysburg address are intoned at the conclusion of the narrated Lincoln quotations which lead to the orchestral closing crescendo. The work involves a full orchestra, with particular emphasis on the brass section at climactic moments. The work is narrated with the reading of excerpts of Abraham Lincoln's great documents, including the Gettysburg Address. The intoned reading from the Address uses only the last two sentences starting with the words, "That from these honored dead ...". Informational notes Citations Bibliography
[ { "paragraph_id": 0, "text": "The Gettysburg Address is a speech that U.S. President Abraham Lincoln delivered during the American Civil War at the dedication of the Soldiers' National Cemetery, now known as Gettysburg National Cemetery, in Gettysburg, Pennsylvania on the afternoon of November 19, 1863, four and a half months after the Union armies defeated Confederate forces in the Battle of Gettysburg, the Civil War's deadliest battle. It remains one of the best-known speeches in American history.", "title": "" }, { "paragraph_id": 1, "text": "Lincoln's carefully crafted but brief address, which was not even scheduled as the day's primary speech, came to be seen as one of the greatest and most influential statements on the American national purpose. In just 271 words, beginning with the now famous phrase \"Four score and seven years ago\", referring to the signing of the Declaration of Independence 87 years earlier, Lincoln described the U.S. as a nation \"conceived in Liberty, and dedicated to the proposition that all men are created equal\", and represented the Civil War as a test that would determine whether such a nation could endure. Lincoln extolled the sacrifices of those who died at Gettysburg in defense of those principles, and then urged that the nation ensure:", "title": "" }, { "paragraph_id": 2, "text": "[...] that these dead shall not have died in vain—that this nation, under God, shall have a new birth of freedom—and that government of the people, by the people, for the people, shall not perish from the earth.", "title": "" }, { "paragraph_id": 3, "text": "Despite the prominent place of the speech in the history and popular culture of the United States, its exact wording is disputed. The five known manuscripts of the Gettysburg Address in Lincoln's hand differ in a number of details, and also differ from contemporary newspaper reprints of the speech. Nor is it precisely clear where, on the grounds of the Gettysburg cemetery, Lincoln delivered the address. Modern scholarship locates the speakers' platform at least 120 feet (37 m) away from the traditional site in Soldiers' National Cemetery at the Soldiers' National Monument, such that it stood entirely within the private, adjacent Evergreen Cemetery. A 2022 interpretation of photographs of the day, using 3D modeling software, has argued for a slightly different location—straddling the current fence around Evergreen Cemetery.", "title": "" }, { "paragraph_id": 4, "text": "Following the Battle of Gettysburg on July 1–3, 1863, the removal of the fallen Union soldiers from the Gettysburg Battlefield graves and their reburial in graves at the National Cemetery at Gettysburg began on October 17, though on the day of the ceremony, interment was less than half complete.", "title": "Background" }, { "paragraph_id": 5, "text": "In inviting President Lincoln to the ceremonies, David Wills, of the committee for the November 19 Consecration of the National Cemetery at Gettysburg, wrote, \"It is the desire that, after the Oration, you, as Chief Executive of the nation, formally set apart these grounds to their sacred use by a few appropriate remarks.\"", "title": "Background" }, { "paragraph_id": 6, "text": "On the train trip from Washington, D.C. to Gettysburg on November 18, Lincoln was accompanied by three members of his Cabinet, William Seward, John Usher, and Montgomery Blair, several foreign officials, his secretary John Nicolay, and his assistant secretary, John Hay. During the trip, Lincoln remarked to Hay that he felt weak; on the morning of November 19, Lincoln mentioned to Nicolay that he was dizzy. Hay noted during the speech that Lincoln's face had \"a ghastly color\" and that he was \"sad, mournful, almost haggard\". After the speech, when Lincoln boarded the 6:30pm train to return to Washington, D.C., he was feverish and weak with a severe headache. A protracted illness followed, which included a vesicular rash; it was diagnosed as a mild case of smallpox. It is highly likely that Lincoln was in the prodromal period of smallpox as he delivered the Gettysburg Address.", "title": "Background" }, { "paragraph_id": 7, "text": "After arriving in Gettysburg, which had become filled with large crowds, Lincoln spent the night in Wills's house. A large crowd appeared at the house, singing and wanting Lincoln to make a speech. Lincoln met the crowd, but did not have a speech prepared, and returned inside after saying a few extemporaneous words. The crowd then continued to another house, where Secretary of State William Seward delivered a speech. Later that night, Lincoln wrote and briefly met with Seward before going to bed at about midnight.", "title": "Background" }, { "paragraph_id": 8, "text": "The program organized for that day by Wills and his committee included:", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 9, "text": "Music, by Birgfeld's Band (\"Homage d'uns Heros\" by Adolph Birgfeld)", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 10, "text": "Prayer, by Reverend T. H. Stockton, D.D.", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 11, "text": "Music, by the Marine Band (\"Old Hundred\"), directed by Francis Scala", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 12, "text": "Oration, by Hon. Edward Everett (\"The Battles of Gettysburg\")", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 13, "text": "Music, Hymn (\"Consecration Chant\") by B. B. French, Esq., music by Wilson G Horner, sung by Baltimore Glee Club", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 14, "text": "Dedicatory Remarks, by the President of the United States", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 15, "text": "Dirge (\"Oh! It is Great for Our Country to Die\", words by James G. Percival, music by Alfred Delaney), sung by Choir selected for the occasion", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 16, "text": "Benediction, by Reverend H. L. Baugher, D.D.", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 17, "text": "While it is Lincoln's short speech that has gone down in history as one of the finest examples of English public oratory, it was Everett's oration that was slated to be the \"Gettysburg address\" that day. His now seldom-read oration was 13,607 words long and lasted two hours.", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 18, "text": "Lengthy dedication addresses like Everett's were common at cemeteries in this era. The tradition began in 1831 when Justice Joseph Story delivered the dedication address at Mount Auburn Cemetery in Cambridge, Massachusetts. Those addresses often linked cemeteries to the mission of Union.", "title": "Program and Everett's \"Gettysburg Oration\"" }, { "paragraph_id": 19, "text": "Shortly after Everett's well-received remarks, Lincoln spoke for only a few minutes. With a \"few appropriate remarks\", he was able to summarize his view of the war in just ten sentences.", "title": "Text" }, { "paragraph_id": 20, "text": "Despite the historical significance of Lincoln's speech, modern scholars disagree as to its exact wording, and contemporary transcriptions published in newspaper accounts of the event and even handwritten copies by Lincoln himself differ in their wording, punctuation, and structure. Of these versions, the Bliss version, written well after the speech as a favor for a friend, is viewed by many as the standard text. Its text differs, however, from the written versions prepared by Lincoln before and after his speech. It is the only version to which Lincoln affixed his signature, and the last he is known to have written. The Bliss version is as follows:", "title": "Text" }, { "paragraph_id": 21, "text": "Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.", "title": "Text" }, { "paragraph_id": 22, "text": "Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this.", "title": "Text" }, { "paragraph_id": 23, "text": "But, in a larger sense, we can not dedicate—we can not consecrate—we can not hallow—this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us—that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion—that we here highly resolve that these dead shall not have died in vain—that this nation, under God, shall have a new birth of freedom—and that government of the people, by the people, for the people, shall not perish from the earth.", "title": "Text" }, { "paragraph_id": 24, "text": "—Abraham Lincoln", "title": "Text" }, { "paragraph_id": 25, "text": "In Lincoln at Gettysburg, Garry Wills notes the parallels between Lincoln's speech and Pericles's Funeral Oration during the Peloponnesian War as described by Thucydides. Pericles' speech, like Lincoln's:", "title": "Lincoln's sources" }, { "paragraph_id": 26, "text": "James M. McPherson notes this connection in his review of Wills's book. Gore Vidal also draws attention to this link in a BBC documentary about oration.", "title": "Lincoln's sources" }, { "paragraph_id": 27, "text": "In contrast, writer Adam Gopnik, in The New Yorker, notes that while Everett's Oration was explicitly neoclassical, referring directly to Marathon and Pericles, \"Lincoln's rhetoric is, instead, deliberately Biblical. (It is difficult to find a single obviously classical reference in any of his speeches.) Lincoln had mastered the sound of the King James Bible so completely that he could recast abstract issues of constitutional law in Biblical terms, making the proposition that Texas and New Hampshire should be forever bound by a single post office sound like something right out of Genesis.\"", "title": "Lincoln's sources" }, { "paragraph_id": 28, "text": "Wills also observed Lincoln's usage of the imagery of birth, life, and death in reference to a nation \"brought forth\", \"conceived\", and that shall not \"perish\". A 1959 thesis by William J. Wolf suggested that the address had a central image of baptism, although Glenn LaFantasie, writing for the Journal of the Abraham Lincoln Association, believes that Wolf's position was likely an overstatement. Philip B. Kunhardt Jr. suggests that Lincoln was inspired by the Book of Common Prayer.", "title": "Lincoln's sources" }, { "paragraph_id": 29, "text": "Allen C. Guelzo, the director of Civil War Era studies at Gettysburg College in Pennsylvania, and others have suggested that Lincoln's formulation \"four score and seven\" was an allusion to the King James Version of the Bible's Psalms 90:10, in which man's lifespan is given as \"threescore years and ten; and if by reason of strength they be fourscore years\". LaFantasie also connected \"four score and seven years\" with Psalms 90:10, and referred to Lincoln's usage of the phrase \"our fathers\" as \"mindful of the Lord's Prayer\". He also refers to Garry Wills's tracing of spiritual language in the address to the Gospel of Luke.", "title": "Lincoln's sources" }, { "paragraph_id": 30, "text": "Several theories have been advanced by Lincoln scholars to explain the provenance of Lincoln's famous phrase \"government of the people, by the people, for the people\". Despite many claims, there is no evidence that a similar phrase appears in the Prologue to John Wycliffe's 1384 English translation of the Bible.", "title": "Lincoln's sources" }, { "paragraph_id": 31, "text": "In a discussion \"A more probable origin of a famous Lincoln phrase\", in a letter to The American Monthly Review of Reviews, Unitarian minister John White Chadwick points to William Herndon, Lincoln's law partner, who wrote in the 1888 work Abraham Lincoln: The True Story of A Great Life that he had brought to Lincoln some of the sermons of abolitionist minister Theodore Parker, of Massachusetts, and that Lincoln was moved by Parker's use of this idea:", "title": "Lincoln's sources" }, { "paragraph_id": 32, "text": "I brought with me additional sermons and lectures of Theodore Parker, who was warm in his commendation of Lincoln. One of these was a lecture on \"The Effect of Slavery on the American People\" ... which I gave to Lincoln, who read and returned it. He liked especially the following expression, which he marked with a pencil, and which he in substance afterwards used in his Gettysburg Address: \"Democracy is direct self-government, over all the people, for all the people, by all the people.\"", "title": "Lincoln's sources" }, { "paragraph_id": 33, "text": "Craig R. Smith, in \"Criticism of Political Rhetoric and Disciplinary Integrity\", suggested Lincoln's view of the government as expressed in the Gettysburg Address was influenced by the noted speech of Massachusetts Senator Daniel Webster, the \"Second Reply to Hayne\", in which Webster famously thundered \"Liberty and Union, now and forever, one and inseparable!\" Specifically, in this speech on January 26, 1830, before the United States Senate, Webster described the federal government as: \"made for the people, made by the people, and answerable to the people\", foreshadowing Lincoln's \"government of the people, by the people, for the people\". Webster also noted, \"This government, Sir, is the independent offspring of the popular will. It is not the creature of State legislatures; nay, more, if the whole truth must be told, the people brought it into existence, established it, and have hitherto supported it, for the very purpose, amongst others, of imposing certain salutary restraints on State sovereignties.\"", "title": "Lincoln's sources" }, { "paragraph_id": 34, "text": "Each of the five known manuscript copies of the Gettysburg Address is named for the person who received it from Lincoln. Lincoln gave copies to his private secretaries, John Nicolay and John Hay. Both of these drafts were written around the time of his November 19 address, while the other three copies of the address, the Everett, Bancroft, and Bliss copies, were written by Lincoln for charitable purposes well after November 19. In part because Lincoln provided a title and signed and dated the Bliss copy, it has become the standard text of Lincoln's Gettysburg Address.", "title": "Five manuscripts" }, { "paragraph_id": 35, "text": "Nicolay and Hay were appointed custodians of Lincoln's papers by Lincoln's son Robert Todd Lincoln in 1874. After appearing in facsimile in an article written by John Nicolay in 1894, the Nicolay copy was presumably among the papers passed to Hay by Nicolay's daughter Helen upon Nicolay's death in 1901. Robert Lincoln began a search for the original copy in 1908, which resulted in the discovery of a handwritten copy of the Gettysburg Address among the bound papers of John Hay—a copy now known as the \"Hay copy\" or \"Hay draft\".", "title": "Five manuscripts" }, { "paragraph_id": 36, "text": "The Hay draft differed from the version of the Gettysburg Address published by John Nicolay in 1894 in a number of significant ways: it was written on a different type of paper, had a different number of words per line and number of lines, and contained editorial revisions in Lincoln's hand.", "title": "Five manuscripts" }, { "paragraph_id": 37, "text": "Both the Hay and Nicolay copies of the Address are within the Library of Congress, encased in specially designed, temperature-controlled, sealed containers with argon gas in order to protect the documents from oxidation and continued deterioration.", "title": "Five manuscripts" }, { "paragraph_id": 38, "text": "The Nicolay copy is often called the \"first draft\" because it is believed to be the earliest copy that exists. Scholars disagree over whether the Nicolay copy was actually the reading copy Lincoln held at Gettysburg on November 19. In an 1894 article that included a facsimile of this copy, Nicolay, who had become the custodian of Lincoln's papers, wrote that Lincoln had brought to Gettysburg the first part of the speech written in ink on Executive Mansion stationery, and that he had written the second page in pencil on lined paper before the dedication on November 19. Matching folds are still evident on the two pages, suggesting it could be the copy that eyewitnesses say Lincoln took from his coat pocket and read at the ceremony. Others believe that the delivery text has been lost, because some of the words and phrases of the Nicolay copy do not match contemporary transcriptions of Lincoln's original speech. The words \"under God\", for example, are missing in this copy from the phrase \"that this nation shall have a new birth of freedom ...\" In order for the Nicolay draft to have been the reading copy, either the contemporary transcriptions were inaccurate, or Lincoln would have had to depart from his written text in several instances. This copy of the Gettysburg Address apparently remained in John Nicolay's possession until his death in 1901, when it passed to his friend and colleague John Hay. It used to be on display as part of the American Treasures exhibition of the Library of Congress in Washington, D.C.", "title": "Five manuscripts" }, { "paragraph_id": 39, "text": "The existence of the Hay copy was first announced to the public in 1906, after the search for the \"original manuscript\" of the Address among the papers of John Hay brought it to light. Significantly, it differs somewhat from the manuscript of the Address described by John Nicolay in his article, and contains numerous omissions and inserts in Lincoln's own hand, including omissions critical to the basic meaning of the sentence, not simply words that would be added by Lincoln to strengthen or clarify their meaning. In this copy, as in the Nicolay copy, the words \"under God\" are not present.", "title": "Five manuscripts" }, { "paragraph_id": 40, "text": "This version has been described as \"the most inexplicable\" of the drafts and is sometimes referred to as the \"second draft\". The \"Hay copy\" was made either on the morning of the delivery of the Address, or shortly after Lincoln's return to Washington. Those who believe that it was completed on the morning of his address point to the fact that it contains certain phrases that are not in the first draft but are in the reports of the address as delivered and in subsequent copies made by Lincoln. It is probable, they conclude, that, as stated in the explanatory note accompanying the original copies of the first and second drafts in the Library of Congress, Lincoln held this second draft when he delivered the address. Lincoln eventually gave this copy to Hay, whose descendants donated both it and the Nicolay copy to the Library of Congress in 1916.", "title": "Five manuscripts" }, { "paragraph_id": 41, "text": "The Everett copy, also known as the \"Everett-Keyes copy\", was sent by President Lincoln to Edward Everett in early 1864, at Everett's request. Everett was collecting the speeches at the Gettysburg dedication into one bound volume to sell for the benefit of stricken soldiers at New York's Sanitary Commission Fair. The draft Lincoln sent became the third autograph copy, and is now in the possession of the Illinois State Historical Library in Springfield, Illinois, where it is displayed in the Treasures Gallery of the Abraham Lincoln Presidential Library and Museum.", "title": "Five manuscripts" }, { "paragraph_id": 42, "text": "The Bancroft copy of the Gettysburg Address was written out by President Lincoln in February 1864 at the request of George Bancroft, the famed historian and former Secretary of the Navy, whose comprehensive ten-volume History of the United States later led him to be known as the \"father of American History\". Bancroft planned to include this copy in Autograph Leaves of Our Country's Authors, which he planned to sell at a Soldiers' and Sailors' Sanitary Fair in Baltimore. As this fourth copy was written on both sides of the paper, it proved unusable for this purpose, and Bancroft was allowed to keep it. This manuscript is the only one accompanied both by a letter from Lincoln transmitting the manuscript and by the original envelope addressed and franked by Lincoln. This copy remained in the Bancroft family for many years, was sold to various dealers and purchased by Nicholas and Marguerite Lilly Noyes, who donated the manuscript to Cornell University in 1949. It is now held by the Division of Rare and Manuscript Collections in the Carl A. Kroch Library at Cornell. It is the only one of the five copies to be privately owned.", "title": "Five manuscripts" }, { "paragraph_id": 43, "text": "Discovering that his fourth written copy could not be used, Lincoln then wrote a fifth draft, which was accepted for the purpose requested. The Bliss copy, named for Colonel Alexander Bliss, Bancroft's stepson and publisher of Autograph Leaves, is the only draft to which Lincoln affixed his signature. Lincoln is not known to have made any further copies of the Gettysburg Address. Because of the apparent care in its preparation, and in part, because Lincoln provided a title and signed and dated this copy, it has become the standard version of the address and the source for most facsimile reproductions of Lincoln's Gettysburg Address. It is the version that is inscribed on the South wall of the Lincoln Memorial.", "title": "Five manuscripts" }, { "paragraph_id": 44, "text": "This draft is now displayed in the Lincoln Room of the White House, a gift of Oscar B. Cintas, former Cuban Ambassador to the United States. Cintas, a wealthy collector of art and manuscripts, purchased the Bliss copy at a public auction in 1949 for $54,000 ($664,000 as of 2023), at that time the highest price ever paid for a document at public auction. Cintas' properties were claimed by the Castro government after the Cuban Revolution in 1959, but Cintas, who died in 1957, willed the Gettysburg Address to the American people, provided it would be kept at the White House, where it was transferred in 1959.", "title": "Five manuscripts" }, { "paragraph_id": 45, "text": "Garry Wills concluded the Bliss copy \"is stylistically preferable to others in one significant way: Lincoln removed 'here' from 'that cause for which they (here) gave ...' The seventh 'here' is in all other versions of the speech.\" Wills noted the fact that Lincoln \"was still making such improvements\", suggesting Lincoln was more concerned with a perfected text than with an \"original\" one.", "title": "Five manuscripts" }, { "paragraph_id": 46, "text": "From November 21, 2008, to January 1, 2009, the Albert H. Small Documents Gallery at the Smithsonian Institution National Museum of American History hosted a limited public viewing of the Bliss copy, with the support of then-First Lady Laura Bush. The museum also launched an online exhibition and interactive gallery to enable visitors to look more closely at the document.", "title": "Five manuscripts" }, { "paragraph_id": 47, "text": "Another contemporary source of the text is the Associated Press dispatch, transcribed from the shorthand notes taken by reporter Joseph L. Gilbert. It also differs from the drafted text in a number of minor ways.", "title": "Five manuscripts" }, { "paragraph_id": 48, "text": "Eyewitness reports vary as to their view of Lincoln's performance. In 1931, the printed recollections of 87-year-old Mrs. Sarah A. Cooke Myers, who was 19 when she attended the ceremony, suggest a dignified silence followed Lincoln's speech: \"I was close to the President and heard all of the Address, but it seemed short. Then there was an impressive silence like our Menallen Friends Meeting. There was no applause when he stopped speaking.\" According to historian Shelby Foote, after Lincoln's presentation, the applause was delayed, scattered, and \"barely polite\". In contrast, Pennsylvania Governor Andrew Gregg Curtin maintained, \"He pronounced that speech in a voice that all the multitude heard. The crowd was hushed into silence because the President stood before them ... It was so Impressive! It was the common remark of everybody. Such a speech, as they said it was!\"", "title": "Contemporary sources and reaction" }, { "paragraph_id": 49, "text": "In an oft-repeated legend, Lincoln is said to have turned to his bodyguard Ward Hill Lamon and remarked that his speech, like a bad plow, \"won't scour\". According to Garry Wills, this statement has no basis in fact and largely originates from the unreliable recollections of Lamon. In Garry Wills's view, \"[Lincoln] had done what he wanted to do [at Gettysburg]\".", "title": "Contemporary sources and reaction" }, { "paragraph_id": 50, "text": "In a letter to Lincoln written the following day, Everett praised the President for his eloquent and concise speech, saying, \"I should be glad if I could flatter myself that I came as near to the central idea of the occasion, in two hours, as you did in two minutes.\" Lincoln replied that he was glad to know the speech was not a \"total failure\".", "title": "Contemporary sources and reaction" }, { "paragraph_id": 51, "text": "Other public reaction to the speech was divided along partisan lines. The Democratic-leaning Chicago Times observed, \"The cheek of every American must tingle with shame as he reads the silly, flat and dishwatery utterances of the man who has to be pointed out to intelligent foreigners as the President of the United States.\" In contrast, the Republican-leaning The New York Times was complimentary and printed the speech. In Massachusetts, the Springfield Republican also printed the entire speech, calling it \"a perfect gem\" that was \"deep in feeling, compact in thought and expression, and tasteful and elegant in every word and comma\". The Republican predicted that Lincoln's brief remarks would \"repay further study as the model speech\". In 2013, on the sesquicentennial of the address, The Patriot-News of Harrisburg, Pennsylvania, formerly the Patriot & Union, retracted its original reaction (\"silly remarks\" deserving \"the veil of oblivion\") stating: \"Seven score and ten years ago, the forefathers of this media institution brought forth to its audience a judgment so flawed, so tainted by hubris, so lacking in the perspective history would bring, that it cannot remain unaddressed in our archives. ... the Patriot & Union failed to recognize [the speech's] momentous importance, timeless eloquence, and lasting significance. The Patriot-News regrets the error.\"", "title": "Contemporary sources and reaction" }, { "paragraph_id": 52, "text": "Foreign newspapers also criticized Lincoln's remarks. The Times of London commented: \"The ceremony [at Gettysburg] was rendered ludicrous by some of the luckless sallies of that poor President Lincoln.\"", "title": "Contemporary sources and reaction" }, { "paragraph_id": 53, "text": "Congressman Joseph A. Goulden, then an eighteen-year-old school teacher, was present and heard the speech. He served in the United States Marine Corps during the war, and later had a successful career in insurance in Pennsylvania and New York City before entering Congress as a Democrat. In his later life, Goulden was often asked about the speech, since the passage of time made him one of a dwindling number of individuals who had been present for it. He commented on the event and Lincoln's speech in favorable terms, naming Lincoln's address as one of the inspirations for him to enter military service. Goulden's recollections included remarks to the House of Representatives in 1914.", "title": "Contemporary sources and reaction" }, { "paragraph_id": 54, "text": "William R. Rathvon is the only known eyewitness of both Lincoln's arrival at Gettysburg and the address itself to have left an audio recording of his recollections. One year before his death in 1939, Rathvon's reminiscences were recorded on February 12, 1938, at the Boston studios of radio station WRUL, including his reading the address, itself, and a 78 RPM record was pressed. The title of the 78 record was \"I Heard Lincoln That Day – William R. Rathvon, TR Productions\". A copy wound up at National Public Radio (NPR) during a \"Quest for Sound\" project in 1999.", "title": "Contemporary sources and reaction" }, { "paragraph_id": 55, "text": "Like most people who came to Gettysburg, the Rathvon family was aware that Lincoln was going to make some remarks. The family went to the town square where the procession was to form to go out to the cemetery that had not been completed yet. At the head of the procession rode Lincoln on a gray horse preceded by a military band that was the first the young boy had ever seen. Rathvon describes Lincoln as so tall and with such long legs that they went almost to the ground; he also mentions the long eloquent speech given by Edward Everett of Massachusetts whom Rathvon accurately described as the \"most finished orator of the day\". Rathvon then goes on to describe how Lincoln stepped forward and \"with a manner serious almost to sadness, gave his brief address\". During the delivery, along with some other boys, young Rathvon wiggled his way forward through the crowd until he stood within 15 feet (4.6 m) of Lincoln and looked up into what he described as his \"serious face\". Rathvon recalls candidly that, although he listened \"intently to every word the president uttered and heard it clearly\", he explains, \"boylike, I could not recall any of it afterwards\". But he explains that if anyone said anything disparaging about \"honest Abe\", there would have been a \"junior battle of Gettysburg\". In the recording Rathvon speaks of Lincoln's speech allegorically \"echoing through the hills\".", "title": "Contemporary sources and reaction" }, { "paragraph_id": 56, "text": "The only known and confirmed photograph of Lincoln at Gettysburg, taken by photographer David Bachrach, was identified in the Mathew Brady collection of photographic plates in the National Archives and Records Administration in 1952. While Lincoln's speech was short and may have precluded multiple pictures of him while speaking, he and the other dignitaries sat for hours during the rest of the program. Given the length of Everett's speech and the length of time it took for 19th-century photographers to get \"set up\" before taking a picture, it is quite plausible that the photographers were ill-prepared for the brevity of Lincoln's remarks.", "title": "Contemporary sources and reaction" }, { "paragraph_id": 57, "text": "The words \"under God\" do not appear in the Nicolay and Hay drafts but are included in the three later copies (Everett, Bancroft, and Bliss). Accordingly, some skeptics maintain that Lincoln did not utter the words \"under God\" at Gettysburg. However, at least three reporters telegraphed the text of Lincoln's speech on the day the Address was given with the words \"under God\" included. Historian William E. Barton argues that:", "title": "Contemporary sources and reaction" }, { "paragraph_id": 58, "text": "Every stenographic report, good, bad and indifferent, says 'that the nation shall, under God, have a new birth of freedom.' There was no common source from which all the reporters could have obtained those words but from Lincoln's own lips at the time of delivery. It will not do to say that [Secretary of War] Stanton suggested those words after Lincoln's return to Washington, for the words were telegraphed by at least three reporters on the afternoon of the delivery.", "title": "Contemporary sources and reaction" }, { "paragraph_id": 59, "text": "The reporters present included Joseph Gilbert, from the Associated Press; Charles Hale, from the Boston Advertiser; John R. Young (who later became the Librarian of Congress), from the Philadelphia Press; and reporters from the Cincinnati Commercial, New York Tribune, and The New York Times. Charles Hale \"had notebook and pencil in hand, [and] took down the slow-spoken words of the President\". \"He took down what he declared was the exact language of Lincoln's address, and his declaration was as good as the oath of a court stenographer. His associates confirmed his testimony, which was received, as it deserved to be, at its face value.\" One explanation is that Lincoln deviated from his prepared text and inserted the phrase when he spoke. Ronald C. White, visiting professor of history at the University of California, Los Angeles and professor of American religious history emeritus at the San Francisco Theological Seminary, wrote in this context of Lincoln's insertion and usage of \"under God\":", "title": "Contemporary sources and reaction" }, { "paragraph_id": 60, "text": "It was an uncharacteristically spontaneous revision for a speaker who did not trust extemporaneous speech. Lincoln had added impromptu words in several earlier speeches, but always offered a subsequent apology for the change. In this instance, he did not. And Lincoln included \"under God\" in all three copies of the address he prepared at later dates. \"Under God\" pointed backward and forward: back to \"this nation\", which drew its breath from both political and religious sources, but also forward to a \"new birth\". Lincoln had come to see the Civil War as a ritual of purification. The old Union had to die. The old man had to die. Death became a transition to a new Union and a new humanity.", "title": "Contemporary sources and reaction" }, { "paragraph_id": 61, "text": "The phrase \"under God\" was used frequently in works published before 1860, usually with the meaning \"with God's help\".", "title": "Contemporary sources and reaction" }, { "paragraph_id": 62, "text": "Outside of either entrance to the National Cemetery, twin historical markers read:", "title": "Platform location" }, { "paragraph_id": 63, "text": "Nearby, Nov. 19, 1863, in dedicating the National Cemetery, Abraham Lincoln gave the address which he had written in Washington and revised after his arrival at Gettysburg the evening of November 18.", "title": "Platform location" }, { "paragraph_id": 64, "text": "Directly inside the Taneytown Road entrance are the Lincoln Address Memorial and Rostrum, which has hosted speeches by five U.S. Presidents. Lincoln was not one of them, and a small metal sign near the speech memorial stirs controversy by stating:", "title": "Platform location" }, { "paragraph_id": 65, "text": "The Address was delivered about 300 yards from this spot along the upper Cemetery drive. The site is now marked by the Soldiers' National Monument.", "title": "Platform location" }, { "paragraph_id": 66, "text": "Holding title as the Traditional Site, the validity of the Soldiers' National Monument has been challenged by platform occupants (in the distant past) and by (relatively recent) photographic analyses. Based upon a pair of photographic analyses, the Gettysburg National Military Park (G.N.M.P.) has placed a marker (near 39°49.199′N 77°13.840′W) which states, \"The location [of the platform] was never marked, but is believed to be in Evergreen Cemetery, on the other side of the iron fence.\"", "title": "Platform location" }, { "paragraph_id": 67, "text": "The observer of this newer marker stands facing the fence which separates the two adjacent cemeteries (one public and one private). Another heavy endorsement of the Traditional Site, this one in bronze and placed by Lincoln's native Commonwealth, stands nearby.", "title": "Platform location" }, { "paragraph_id": 68, "text": "Absent an original and enduring marker, the location of the platform is in the hands of rhetoricians and scholars. The Superintendent of Evergreen Cemetery, Brian Kennell, emphatically endorses the findings of William Frassanito's photographic analysis.", "title": "Platform location" }, { "paragraph_id": 69, "text": "Colonel W. Yates Selleck was a marshal in the parade on Consecration Day and was seated on the platform when Lincoln made the address. Selleck marked a map with the position of the platform and described it as \"350 feet [110 m] almost due north of Soldiers' National Monument, 40 feet [12 m] from a point in the outer circle of lots where [the] Michigan and New York [burial sections] are separated by a path\". A location which approximates this description is 39°49.243′N, 77°13.869′W.", "title": "Platform location" }, { "paragraph_id": 70, "text": "As pointed out in 1973 by retired park historian Frederick Tilberg, the Selleck Site is 25 feet (7.6 m) lower than the crest of Cemetery Hill, and only the crest presents a panoramic view of the battlefield. A spectacular view from the location of the speech was noted by many eyewitnesses, is consistent with the Traditional Site at the Soldiers' National Monument (and other sites on the crest) but is inconsistent with the Selleck Site.", "title": "Platform location" }, { "paragraph_id": 71, "text": "The Kentucky Memorial, erected in 1975, is directly adjacent to the Soldiers' National Monument, and states, \"Kentucky honors her son, Abraham Lincoln, who delivered his immortal address at the site now marked by the soldiers' monument.\" With its position at the center of the concentric rings of soldiers' graves and the continuing endorsement of Lincoln's native state the Soldiers' National Monument persists as a credible location for the speech.", "title": "Platform location" }, { "paragraph_id": 72, "text": "Writing a physical description of the layout for the Gettysburg National Cemetery under construction in November 1863, the correspondent from the Cincinnati Daily Commercial described the dividing lines between the state grave plots as \"the radii of a common center, where a flag pole is now raised, but where it is proposed to erect a national monument\". With the inclusion of this quotation Tilberg inadvertently verifies a central principle of future photographic analyses—a flagpole, rather than the speakers' platform, occupied the central point of the soldiers' graves. In fact, the precision of the photo-analyses relies upon the coincidence of position between this temporary flag pole and the future monument.", "title": "Platform location" }, { "paragraph_id": 73, "text": "Confusing to today's tourist, the Kentucky Memorial is contradicted by a newer marker which was erected nearby by the Gettysburg National Military Park and locates the speakers' platform inside Evergreen Cemetery. Similarly, outdated National Park Service documents which pinpoint the location at the Soldiers' National Monument have not been systematically revised since the placement of the newer marker. Miscellaneous web pages perpetuate the Traditional Site.", "title": "Platform location" }, { "paragraph_id": 74, "text": "In 1982, Senior Park Historian Kathleen Georg Harrison first analyzed photographs and proposed a location in Evergreen Cemetery but has not published her analysis. Speaking for Harrison without revealing details, two sources characterize her proposed location as \"on or near [the] Brown family vault\" in Evergreen Cemetery.", "title": "Platform location" }, { "paragraph_id": 75, "text": "William A. Frassanito, a former military intelligence analyst, documented a comprehensive photographic analysis in 1995, and it associates the location of the platform with the position of specific modern headstones in Evergreen Cemetery. According to Frassanito, the extant graves of Israel Yount (died 1892)(39°49.180′N 77°13.845′W / 39.819667°N 77.230750°W / 39.819667; -77.230750 (grave of Israel Yount (d. 1892))), John Koch (died 1913)(39°49.184′N 77°13.847′W / 39.819733°N 77.230783°W / 39.819733; -77.230783 (grave of John Koch (d. 1913))), and George E. Kitzmiller (died 1874)(39°49.182′N 77°13.841′W / 39.819700°N 77.230683°W / 39.819700; -77.230683 (grave of George E. Kitzmiller (d. 1874))) are among those which occupy the location of the 1863 speaker's stand.", "title": "Platform location" }, { "paragraph_id": 76, "text": "Over the course of many years, an Assistant Professor of New Media at the University of North Carolina at Asheville, Christopher Oakley, and his students have labored to produce and relentlessly perfect \"a lifelike virtual 3-D re-creation of Lincoln delivering the Gettysburg Address\" as part of the Virtual Lincoln Project. One result was revealed when “Placing the Platform: Using 3D Technology to Pinpoint Lincoln at Gettysburg” was presented on November 18, 2022, at the Lincoln Forum XXVII in Gettysburg.", "title": "Platform location" }, { "paragraph_id": 77, "text": "As a starting point, the project modeled the topography around Cemetery Hill, the Gatehouse at Evergreen Cemetery and the documented positions of nonextant objects which appear in photographs (the poplar tree, the flag pole and the Duttera House among them) using 3-D animation software Maya. Next, the platform and its occupants were modeled. Finally, the approximate positions of the cameras were placed into the 3-D environment, and the overall model was iteratively refined. By reproducing the appearance of the four known photographs, taken distantly from one another in 1863, Lincoln and the platform have been placed in virtual reality.", "title": "Platform location" }, { "paragraph_id": 78, "text": "Oakley's model shows the platform straddling the iron fence between the Soldiers' National Cemetery and Evergreen Cemetery. It increases the size of the platform and changes its shape from rectangular, as previous researchers have maintained, to trapezoidal. Most significantly, the speaker's position occupies a portion of the platform over the grounds of the Soldiers' National Cemetery.", "title": "Platform location" }, { "paragraph_id": 79, "text": "William Frassanito's analysis is based upon two of the four photographic perspectives which were employed by Oakley to validate his 3D model. Frassanito assesses one of his sources by stating, \"This view [by Weaver] was probably not taken from the second-story window of the gatehouse itself.\" Via enlargement of a Gardner photograph (taken from the opposite direction), John J. Richter may have identified a photographer with a camera in this exact window, thereby weakening the contribution of the Weaver photograph to Frassanito's conclusions. Oakley's proprietary 3D model utilizes the position of Weaver's camera as suggested by Richter.", "title": "Platform location" }, { "paragraph_id": 80, "text": "The GNMP marker, Wills's interpretation of Harrison's analysis, the Frassanito analysis, and the Oakley analysis concur that the platform was located entirely or mostly in private Evergreen Cemetery, rather than public Soldiers' National Cemetery. The National Park Service's National Cemetery Walking Tour brochure is one NPS document which agrees:", "title": "Platform location" }, { "paragraph_id": 81, "text": "The Soldiers' National Monument, long misidentified as the spot from which Lincoln spoke, honors the fallen soldiers. [The location of the speech] was actually on the crown of this hill, a short distance on the other side of the iron fence and inside the Evergreen Cemetery, where President Lincoln delivered the Gettysburg Address to a crowd of some 15,000 people.", "title": "Platform location" }, { "paragraph_id": 82, "text": "The locations determined by the Harrison/Wills, Frassanito, and Oakley analyses differ by approximately 40 yards. Frassanito has documented 1) his own conclusion, 2) his own methods and 3) a refutation of the Harrison site, but neither the GNMP nor Harrison has provided any documentation. Oakley's interpretation was only made public in 2022 and is still under review. Each of the four points to a location in Evergreen Cemetery, as do modern NPS publications.", "title": "Platform location" }, { "paragraph_id": 83, "text": "Although Lincoln dedicated the Gettysburg National Cemetery, the monument at the Cemetery's center actually has nothing to do with Lincoln or his famous speech. Intended to symbolize Columbia paying tribute to her fallen sons, its appreciation has been commandeered by the thirst for a tidy home for the speech. Freeing the Cemetery and Monument to serve their original purpose, honoring of Union departed, is as unlikely as a resolution to the location controversy and the erection of a public monument to the speech in the exclusively private Evergreen Cemetery.", "title": "Platform location" }, { "paragraph_id": 84, "text": "The importance of the Gettysburg Address in the history of the United States is underscored by its enduring presence in American culture. In addition to its prominent place carved into a stone cella on the south wall of the Lincoln Memorial in Washington, D.C., the Gettysburg Address is frequently referred to in works of popular culture, with the implicit expectation that contemporary audiences will be familiar with Lincoln's words.", "title": "Legacy" }, { "paragraph_id": 85, "text": "In the many generations that have passed since the Address, it has remained among the most famous speeches in American history and is often taught in classes about history or civics. Lincoln's Gettysburg Address is itself referenced in another of those famed orations, Martin Luther King Jr.'s \"I Have a Dream\" speech. Standing on the steps of the Lincoln Memorial in August 1963, King began with a reference, by the style of his opening phrase, to President Lincoln and his enduring words: \"Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of withering injustice.\"", "title": "Legacy" }, { "paragraph_id": 86, "text": "Phrases from the Address are often used or referenced in other works. The current Constitution of France states that the principle of the French Republic is \"gouvernement du peuple, par le peuple et pour le peuple\" (\"government of the people, by the people, and for the people\"), a literal translation of Lincoln's words. Sun Yat-Sen's \"Three Principles of the People\" as well as the preamble for the 1947 Constitution of Japan were also inspired from that phrase. The aircraft carrier USS Abraham Lincoln has as its ship's motto the phrase \"shall not perish\".", "title": "Legacy" }, { "paragraph_id": 87, "text": "U.S. Senator Charles Sumner of Massachusetts wrote of the address and its enduring presence in American culture after Lincoln's assassination in April 1865: \"That speech, uttered at the field of Gettysburg ... and now sanctified by the martyrdom of its author, is a monumental act. In the modesty of his nature he said 'the world will little note, nor long remember what we say here; but it can never forget what they did here.' He was mistaken. The world at once noted what he said, and will never cease to remember it.\"", "title": "Legacy" }, { "paragraph_id": 88, "text": "In January 1961 John F. Kennedy tasked his speech writer Ted Sorensen to study the Gettysburg Address in order to help him with his own inaugural address. Sorensen drew many lessons from the Gettysburg Address which according to Sorensen included rhetoric devices used by many speech writers like alliterations, rhymes, repetitions as well as contrast and balance.", "title": "Legacy" }, { "paragraph_id": 89, "text": "U.S. President John F. Kennedy stated in July 1963 about the battle and Lincoln's speech: \"Five score years ago the ground on which we here stand shuddered under the clash of arms and was consecrated for all time by the blood of American manhood. Abraham Lincoln, in dedicating this great battlefield, has expressed, in words too eloquent for paraphrase or summary, why this sacrifice was necessary.\"", "title": "Legacy" }, { "paragraph_id": 90, "text": "In 2015, the Abraham Lincoln Presidential Library Foundation compiled Gettysburg Replies: The World Responds to Abraham Lincoln's Gettysburg Address. The work challenges leaders to craft 272 word responses to celebrate Lincoln, the Gettysburg Address, or a related topic. One of the replies was by astrophysicist Neil deGrasse Tyson in which he made the point that one of Lincoln's greatest legacies was establishing, in the same year of the Gettysburg Address, the National Academy of Sciences, which had the longterm effect of \"setting our Nation on a course of scientifically enlightened governance, without which we all may perish from this Earth\".", "title": "Legacy" }, { "paragraph_id": 91, "text": "A common American myth about the Gettysburg Address is that Lincoln quickly wrote the speech on the back of an envelope while on the train. This widely held misunderstanding may have originated with a popular book, The Perfect Tribute, by Mary Raymond Shipman Andrews (1906), which was assigned reading for generations of schoolchildren, sold 600,000 copies when published as a standalone volume, and was twice adapted for film.", "title": "Legacy" }, { "paragraph_id": 92, "text": "Other lesser-known claims include Harriet Beecher Stowe's assertion that Lincoln had composed the address \"in only a few moments\", and that of industrialist Andrew Carnegie, who claimed to have personally supplied Lincoln with a pen.", "title": "Legacy" }, { "paragraph_id": 93, "text": "A Lincoln Portrait is a classical orchestral work written by the American composer Aaron Copland in which the closing phrases of the Gettysburg address are intoned at the conclusion of the narrated Lincoln quotations which lead to the orchestral closing crescendo. The work involves a full orchestra, with particular emphasis on the brass section at climactic moments. The work is narrated with the reading of excerpts of Abraham Lincoln's great documents, including the Gettysburg Address. The intoned reading from the Address uses only the last two sentences starting with the words, \"That from these honored dead ...\".", "title": "Popular culture" }, { "paragraph_id": 94, "text": "Informational notes", "title": "References" }, { "paragraph_id": 95, "text": "Citations", "title": "References" }, { "paragraph_id": 96, "text": "Bibliography", "title": "References" } ]
The Gettysburg Address is a speech that U.S. President Abraham Lincoln delivered during the American Civil War at the dedication of the Soldiers' National Cemetery, now known as Gettysburg National Cemetery, in Gettysburg, Pennsylvania on the afternoon of November 19, 1863, four and a half months after the Union armies defeated Confederate forces in the Battle of Gettysburg, the Civil War's deadliest battle. It remains one of the best-known speeches in American history. Lincoln's carefully crafted but brief address, which was not even scheduled as the day's primary speech, came to be seen as one of the greatest and most influential statements on the American national purpose. In just 271 words, beginning with the now famous phrase "Four score and seven years ago"‍, referring to the signing of the Declaration of Independence 87 years earlier, Lincoln described the U.S. as a nation "conceived in Liberty, and dedicated to the proposition that all men are created equal", and represented the Civil War as a test that would determine whether such a nation could endure. Lincoln extolled the sacrifices of those who died at Gettysburg in defense of those principles, and then urged that the nation ensure: Despite the prominent place of the speech in the history and popular culture of the United States, its exact wording is disputed. The five known manuscripts of the Gettysburg Address in Lincoln's hand differ in a number of details, and also differ from contemporary newspaper reprints of the speech. Nor is it precisely clear where, on the grounds of the Gettysburg cemetery, Lincoln delivered the address. Modern scholarship locates the speakers' platform at least 120 feet (37 m) away from the traditional site in Soldiers' National Cemetery at the Soldiers' National Monument, such that it stood entirely within the private, adjacent Evergreen Cemetery. A 2022 interpretation of photographs of the day, using 3D modeling software, has argued for a slightly different location—straddling the current fence around Evergreen Cemetery.
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https://en.wikipedia.org/wiki/Gettysburg_Address
12,385
Genetic code
The genetic code is the set of rules used by living cells to translate information encoded within genetic material (DNA or RNA sequences of nucleotide triplets, or codons) into proteins. Translation is accomplished by the ribosome, which links proteinogenic amino acids in an order specified by messenger RNA (mRNA), using transfer RNA (tRNA) molecules to carry amino acids and to read the mRNA three nucleotides at a time. The genetic code is highly similar among all organisms and can be expressed in a simple table with 64 entries. The codons specify which amino acid will be added next during protein biosynthesis. With some exceptions, a three-nucleotide codon in a nucleic acid sequence specifies a single amino acid. The vast majority of genes are encoded with a single scheme (see the RNA codon table). That scheme is often referred to as the canonical or standard genetic code, or simply the genetic code, though variant codes (such as in mitochondria) exist. Efforts to understand how proteins are encoded began after DNA's structure was discovered in 1953. The key discoverers, English biophysicist Francis Crick and American biologist James Watson, working together at the Cavendish Laboratory of the University of Cambridge, hypothesied that information flows from DNA and that there is a link between DNA and proteins. Soviet-American physicist George Gamow was the first to give a workable scheme for protein synthesis from DNA. He postulated that sets of three bases (triplets) must be employed to encode the 20 standard amino acids used by living cells to build proteins, which would allow a maximum of 4 = 64 amino acids. He named this DNA–protein interaction (the original genetic code) as the "diamond code". In 1954, Gamow created an informal scientific organisation the RNA Tie Club, as suggested by Watson, for scientists of different persuasions who were interested in how proteins were synthesised from genes. However, the club could have only 20 permanent members to represent each of the 20 amino acids; and four additional honorary members to represent the four nucleotides of DNA. The first scientific contribution of the club, later recorded as "one of the most important unpublished articles in the history of science" and "the most famous unpublished paper in the annals of molecular biology", was made by Crick. Crick presented a type-written paper titled "On Degenerate Templates and the Adaptor Hypothesis: A Note for the RNA Tie Club" to the members of the club in January 1955, which "totally changed the way we thought about protein synthesis", as Watson recalled. The hypothesis states that the triplet code was not passed on to amino acids as Gamow thought, but carried by a different molecule, an adaptor, that interacts with amino acids. The adaptor was later identified as tRNA. The Crick, Brenner, Barnett and Watts-Tobin experiment first demonstrated that codons consist of three DNA bases. Marshall Nirenberg and Heinrich J. Matthaei were the first to reveal the nature of a codon in 1961. They used a cell-free system to translate a poly-uracil RNA sequence (i.e., UUUUU...) and discovered that the polypeptide that they had synthesized consisted of only the amino acid phenylalanine. They thereby deduced that the codon UUU specified the amino acid phenylalanine. This was followed by experiments in Severo Ochoa's laboratory that demonstrated that the poly-adenine RNA sequence (AAAAA...) coded for the polypeptide poly-lysine and that the poly-cytosine RNA sequence (CCCCC...) coded for the polypeptide poly-proline. Therefore, the codon AAA specified the amino acid lysine, and the codon CCC specified the amino acid proline. Using various copolymers most of the remaining codons were then determined. Subsequent work by Har Gobind Khorana identified the rest of the genetic code. Shortly thereafter, Robert W. Holley determined the structure of transfer RNA (tRNA), the adapter molecule that facilitates the process of translating RNA into protein. This work was based upon Ochoa's earlier studies, yielding the latter the Nobel Prize in Physiology or Medicine in 1959 for work on the enzymology of RNA synthesis. Extending this work, Nirenberg and Philip Leder revealed the code's triplet nature and deciphered its codons. In these experiments, various combinations of mRNA were passed through a filter that contained ribosomes, the components of cells that translate RNA into protein. Unique triplets promoted the binding of specific tRNAs to the ribosome. Leder and Nirenberg were able to determine the sequences of 54 out of 64 codons in their experiments. Khorana, Holley and Nirenberg received the 1968 Nobel for their work. The three stop codons were named by discoverers Richard Epstein and Charles Steinberg. "Amber" was named after their friend Harris Bernstein, whose last name means "amber" in German. The other two stop codons were named "ochre" and "opal" in order to keep the "color names" theme. In a broad academic audience, the concept of the evolution of the genetic code from the original and ambiguous genetic code to a well-defined ("frozen") code with the repertoire of 20 (+2) canonical amino acids is widely accepted. However, there are different opinions, concepts, approaches and ideas, which is the best way to change it experimentally. Even models are proposed that predict "entry points" for synthetic amino acid invasion of the genetic code. Since 2001, 40 non-natural amino acids have been added into proteins by creating a unique codon (recoding) and a corresponding transfer-RNA:aminoacyl – tRNA-synthetase pair to encode it with diverse physicochemical and biological properties in order to be used as a tool to exploring protein structure and function or to create novel or enhanced proteins. H. Murakami and M. Sisido extended some codons to have four and five bases. Steven A. Benner constructed a functional 65th (in vivo) codon. In 2015 N. Budisa, D. Söll and co-workers reported the full substitution of all 20,899 tryptophan residues (UGG codons) with unnatural thienopyrrole-alanine in the genetic code of the bacterium Escherichia coli. In 2016 the first stable semisynthetic organism was created. It was a (single cell) bacterium with two synthetic bases (called X and Y). The bases survived cell division. In 2017, researchers in South Korea reported that they had engineered a mouse with an extended genetic code that can produce proteins with unnatural amino acids. In May 2019, researchers reported the creation of a new "Syn61" strain of the bacterium Escherichia coli. This strain has a fully synthetic genome that is refactored (all overlaps expanded), recoded (removing the use of three out of 64 codons completely), and further modified to remove the now unnecessary tRNAs and release factors. It is fully viable and grows 1.6× slower than its wild-type counterpart "MDS42". A reading frame is defined by the initial triplet of nucleotides from which translation starts. It sets the frame for a run of successive, non-overlapping codons, which is known as an "open reading frame" (ORF). For example, the string 5'-AAATGAACG-3' (see figure), if read from the first position, contains the codons AAA, TGA, and ACG ; if read from the second position, it contains the codons AAT and GAA ; and if read from the third position, it contains the codons ATG and AAC. Every sequence can, thus, be read in its 5' → 3' direction in three reading frames, each producing a possibly distinct amino acid sequence: in the given example, Lys (K)-Trp (W)-Thr (T), Asn (N)-Glu (E), or Met (M)-Asn (N), respectively (when translating with the vertebrate mitochondrial code). When DNA is double-stranded, six possible reading frames are defined, three in the forward orientation on one strand and three reverse on the opposite strand. Protein-coding frames are defined by a start codon, usually the first AUG (ATG) codon in the RNA (DNA) sequence. In eukaryotes, ORFs in exons are often interrupted by introns. Translation starts with a chain-initiation codon or start codon. The start codon alone is not sufficient to begin the process. Nearby sequences such as the Shine-Dalgarno sequence in E. coli and initiation factors are also required to start translation. The most common start codon is AUG, which is read as methionine or as formylmethionine (in bacteria, mitochondria, and plastids). Alternative start codons depending on the organism include "GUG" or "UUG"; these codons normally represent valine and leucine, respectively, but as start codons they are translated as methionine or formylmethionine. The three stop codons have names: UAG is amber, UGA is opal (sometimes also called umber), and UAA is ochre. Stop codons are also called "termination" or "nonsense" codons. They signal release of the nascent polypeptide from the ribosome because no cognate tRNA has anticodons complementary to these stop signals, allowing a release factor to bind to the ribosome instead. During the process of DNA replication, errors occasionally occur in the polymerization of the second strand. These errors, mutations, can affect an organism's phenotype, especially if they occur within the protein coding sequence of a gene. Error rates are typically 1 error in every 10–100 million bases—due to the "proofreading" ability of DNA polymerases. Missense mutations and nonsense mutations are examples of point mutations that can cause genetic diseases such as sickle-cell disease and thalassemia respectively. Clinically important missense mutations generally change the properties of the coded amino acid residue among basic, acidic, polar or non-polar states, whereas nonsense mutations result in a stop codon. Mutations that disrupt the reading frame sequence by indels (insertions or deletions) of a non-multiple of 3 nucleotide bases are known as frameshift mutations. These mutations usually result in a completely different translation from the original, and likely cause a stop codon to be read, which truncates the protein. These mutations may impair the protein's function and are thus rare in in vivo protein-coding sequences. One reason inheritance of frameshift mutations is rare is that, if the protein being translated is essential for growth under the selective pressures the organism faces, absence of a functional protein may cause death before the organism becomes viable. Frameshift mutations may result in severe genetic diseases such as Tay–Sachs disease. Although most mutations that change protein sequences are harmful or neutral, some mutations have benefits. These mutations may enable the mutant organism to withstand particular environmental stresses better than wild type organisms, or reproduce more quickly. In these cases a mutation will tend to become more common in a population through natural selection. Viruses that use RNA as their genetic material have rapid mutation rates, which can be an advantage, since these viruses thereby evolve rapidly, and thus evade the immune system defensive responses. In large populations of asexually reproducing organisms, for example, E. coli, multiple beneficial mutations may co-occur. This phenomenon is called clonal interference and causes competition among the mutations. Degeneracy is the redundancy of the genetic code. This term was given by Bernfield and Nirenberg. The genetic code has redundancy but no ambiguity (see the codon tables below for the full correlation). For example, although codons GAA and GAG both specify glutamic acid (redundancy), neither specifies another amino acid (no ambiguity). The codons encoding one amino acid may differ in any of their three positions. For example, the amino acid leucine is specified by YUR or CUN (UUA, UUG, CUU, CUC, CUA, or CUG) codons (difference in the first or third position indicated using IUPAC notation), while the amino acid serine is specified by UCN or AGY (UCA, UCG, UCC, UCU, AGU, or AGC) codons (difference in the first, second, or third position). A practical consequence of redundancy is that errors in the third position of the triplet codon cause only a silent mutation or an error that would not affect the protein because the hydrophilicity or hydrophobicity is maintained by equivalent substitution of amino acids; for example, a codon of NUN (where N = any nucleotide) tends to code for hydrophobic amino acids. NCN yields amino acid residues that are small in size and moderate in hydropathicity; NAN encodes average size hydrophilic residues. The genetic code is so well-structured for hydropathicity that a mathematical analysis (Singular Value Decomposition) of 12 variables (4 nucleotides x 3 positions) yields a remarkable correlation (C = 0.95) for predicting the hydropathicity of the encoded amino acid directly from the triplet nucleotide sequence, without translation. Note in the table, below, eight amino acids are not affected at all by mutations at the third position of the codon, whereas in the figure above, a mutation at the second position is likely to cause a radical change in the physicochemical properties of the encoded amino acid. Nevertheless, changes in the first position of the codons are more important than changes in the second position on a global scale. The reason may be that charge reversal (from a positive to a negative charge or vice versa) can only occur upon mutations in the first position of certain codons, but not upon changes in the second position of any codon. Such charge reversal may have dramatic consequences for the structure or function of a protein. This aspect may have been largely underestimated by previous studies. The frequency of codons, also known as codon usage bias, can vary from species to species with functional implications for the control of translation. The codon varies by organism; for example, most common proline codon in E. coli is CCG, whereas in humans this is the least used proline codon. In some proteins, non-standard amino acids are substituted for standard stop codons, depending on associated signal sequences in the messenger RNA. For example, UGA can code for selenocysteine and UAG can code for pyrrolysine. Selenocysteine came to be seen as the 21st amino acid, and pyrrolysine as the 22nd. Unlike selenocysteine, pyrrolysine-encoded UAG is translated with the participation of a dedicated aminoacyl-tRNA synthetase. Both selenocysteine and pyrrolysine may be present in the same organism. Although the genetic code is normally fixed in an organism, the achaeal prokaryote Acetohalobium arabaticum can expand its genetic code from 20 to 21 amino acids (by including pyrrolysine) under different conditions of growth. There was originally a simple and widely accepted argument that the genetic code should be universal: namely, that any variation in the genetic code would be lethal to the organism (although Crick had stated that viruses were an exception). This is known as the "frozen accident" argument for the universality of the genetic code. However, in his seminal paper on the origins of the genetic code in 1968, Francis Crick still stated that the universality of the genetic code in all organisms was an unproven assumption, and was probably not true in some instances. He predicted that "The code is universal (the same in all organisms) or nearly so". The first variation was discovered in 1979, by researchers studying human mitochondrial genes. Many slight variants were discovered thereafter, including various alternative mitochondrial codes. These minor variants for example involve translation of the codon UGA as tryptophan in Mycoplasma species, and translation of CUG as a serine rather than leucine in yeasts of the "CTG clade" (such as Candida albicans). Because viruses must use the same genetic code as their hosts, modifications to the standard genetic code could interfere with viral protein synthesis or functioning. However, viruses such as totiviruses have adapted to the host's genetic code modification. In bacteria and archaea, GUG and UUG are common start codons. In rare cases, certain proteins may use alternative start codons. Surprisingly, variations in the interpretation of the genetic code exist also in human nuclear-encoded genes: In 2016, researchers studying the translation of malate dehydrogenase found that in about 4% of the mRNAs encoding this enzyme the stop codon is naturally used to encode the amino acids tryptophan and arginine. This type of recoding is induced by a high-readthrough stop codon context and it is referred to as functional translational readthrough. Despite these differences, all known naturally occurring codes are very similar. The coding mechanism is the same for all organisms: three-base codons, tRNA, ribosomes, single direction reading and translating single codons into single amino acids. The most extreme variations occur in certain ciliates where the meaning of stop codons depends on their position within mRNA. When close to the 3' end they act as terminators while in internal positions they either code for amino acids as in Condylostoma magnum or trigger ribosomal frameshifting as in Euplotes. The origins and variation of the genetic code, including the mechanisms behind the evolvability of the genetic code, have been widely studied, and some studies have been done experimentally evolving the genetic code of some organisms. Variant genetic codes used by an organism can be inferred by identifying highly conserved genes encoded in that genome, and comparing its codon usage to the amino acids in homologous proteins of other organisms. For example, the program FACIL infers a genetic code by searching which amino acids in homologous protein domains are most often aligned to every codon. The resulting amino acid (or stop codon) probabilities for each codon are displayed in a genetic code logo. As of January 2022, the most complete survey of genetic codes is done by Shulgina and Eddy, who screened 250,000 prokaryotic genomes using their Codetta tool. This tool uses a similar approach to FACIL with a larger Pfam database. Despite the NCBI already providing 27 translation tables, the authors were able to find new 5 genetic code variations (corroborated by tRNA mutations) and correct several misattributions. Codetta was later used to analyze genetic code change in ciliates. The genetic code is a key part of the history of life, according to one version of which self-replicating RNA molecules preceded life as we know it. This is the RNA world hypothesis. Under this hypothesis, any model for the emergence of the genetic code is intimately related to a model of the transfer from ribozymes (RNA enzymes) to proteins as the principal enzymes in cells. In line with the RNA world hypothesis, transfer RNA molecules appear to have evolved before modern aminoacyl-tRNA synthetases, so the latter cannot be part of the explanation of its patterns. A hypothetical randomly evolved genetic code further motivates a biochemical or evolutionary model for its origin. If amino acids were randomly assigned to triplet codons, there would be 1.5 × 10 possible genetic codes. This number is found by calculating the number of ways that 21 items (20 amino acids plus one stop) can be placed in 64 bins, wherein each item is used at least once. However, the distribution of codon assignments in the genetic code is nonrandom. In particular, the genetic code clusters certain amino acid assignments. Amino acids that share the same biosynthetic pathway tend to have the same first base in their codons. This could be an evolutionary relic of an early, simpler genetic code with fewer amino acids that later evolved to code a larger set of amino acids. It could also reflect steric and chemical properties that had another effect on the codon during its evolution. Amino acids with similar physical properties also tend to have similar codons, reducing the problems caused by point mutations and mistranslations. Given the non-random genetic triplet coding scheme, a tenable hypothesis for the origin of genetic code could address multiple aspects of the codon table, such as absence of codons for D-amino acids, secondary codon patterns for some amino acids, confinement of synonymous positions to third position, the small set of only 20 amino acids (instead of a number approaching 64), and the relation of stop codon patterns to amino acid coding patterns. Three main hypotheses address the origin of the genetic code. Many models belong to one of them or to a hybrid: Hypotheses have addressed a variety of scenarios:
[ { "paragraph_id": 0, "text": "The genetic code is the set of rules used by living cells to translate information encoded within genetic material (DNA or RNA sequences of nucleotide triplets, or codons) into proteins. Translation is accomplished by the ribosome, which links proteinogenic amino acids in an order specified by messenger RNA (mRNA), using transfer RNA (tRNA) molecules to carry amino acids and to read the mRNA three nucleotides at a time. The genetic code is highly similar among all organisms and can be expressed in a simple table with 64 entries.", "title": "" }, { "paragraph_id": 1, "text": "The codons specify which amino acid will be added next during protein biosynthesis. With some exceptions, a three-nucleotide codon in a nucleic acid sequence specifies a single amino acid. The vast majority of genes are encoded with a single scheme (see the RNA codon table). That scheme is often referred to as the canonical or standard genetic code, or simply the genetic code, though variant codes (such as in mitochondria) exist.", "title": "" }, { "paragraph_id": 2, "text": "Efforts to understand how proteins are encoded began after DNA's structure was discovered in 1953. The key discoverers, English biophysicist Francis Crick and American biologist James Watson, working together at the Cavendish Laboratory of the University of Cambridge, hypothesied that information flows from DNA and that there is a link between DNA and proteins. Soviet-American physicist George Gamow was the first to give a workable scheme for protein synthesis from DNA. He postulated that sets of three bases (triplets) must be employed to encode the 20 standard amino acids used by living cells to build proteins, which would allow a maximum of 4 = 64 amino acids. He named this DNA–protein interaction (the original genetic code) as the \"diamond code\".", "title": "History" }, { "paragraph_id": 3, "text": "In 1954, Gamow created an informal scientific organisation the RNA Tie Club, as suggested by Watson, for scientists of different persuasions who were interested in how proteins were synthesised from genes. However, the club could have only 20 permanent members to represent each of the 20 amino acids; and four additional honorary members to represent the four nucleotides of DNA.", "title": "History" }, { "paragraph_id": 4, "text": "The first scientific contribution of the club, later recorded as \"one of the most important unpublished articles in the history of science\" and \"the most famous unpublished paper in the annals of molecular biology\", was made by Crick. Crick presented a type-written paper titled \"On Degenerate Templates and the Adaptor Hypothesis: A Note for the RNA Tie Club\" to the members of the club in January 1955, which \"totally changed the way we thought about protein synthesis\", as Watson recalled. The hypothesis states that the triplet code was not passed on to amino acids as Gamow thought, but carried by a different molecule, an adaptor, that interacts with amino acids. The adaptor was later identified as tRNA.", "title": "History" }, { "paragraph_id": 5, "text": "The Crick, Brenner, Barnett and Watts-Tobin experiment first demonstrated that codons consist of three DNA bases.", "title": "History" }, { "paragraph_id": 6, "text": "Marshall Nirenberg and Heinrich J. Matthaei were the first to reveal the nature of a codon in 1961. They used a cell-free system to translate a poly-uracil RNA sequence (i.e., UUUUU...) and discovered that the polypeptide that they had synthesized consisted of only the amino acid phenylalanine. They thereby deduced that the codon UUU specified the amino acid phenylalanine.", "title": "History" }, { "paragraph_id": 7, "text": "This was followed by experiments in Severo Ochoa's laboratory that demonstrated that the poly-adenine RNA sequence (AAAAA...) coded for the polypeptide poly-lysine and that the poly-cytosine RNA sequence (CCCCC...) coded for the polypeptide poly-proline. Therefore, the codon AAA specified the amino acid lysine, and the codon CCC specified the amino acid proline. Using various copolymers most of the remaining codons were then determined.", "title": "History" }, { "paragraph_id": 8, "text": "Subsequent work by Har Gobind Khorana identified the rest of the genetic code. Shortly thereafter, Robert W. Holley determined the structure of transfer RNA (tRNA), the adapter molecule that facilitates the process of translating RNA into protein. This work was based upon Ochoa's earlier studies, yielding the latter the Nobel Prize in Physiology or Medicine in 1959 for work on the enzymology of RNA synthesis.", "title": "History" }, { "paragraph_id": 9, "text": "Extending this work, Nirenberg and Philip Leder revealed the code's triplet nature and deciphered its codons. In these experiments, various combinations of mRNA were passed through a filter that contained ribosomes, the components of cells that translate RNA into protein. Unique triplets promoted the binding of specific tRNAs to the ribosome. Leder and Nirenberg were able to determine the sequences of 54 out of 64 codons in their experiments. Khorana, Holley and Nirenberg received the 1968 Nobel for their work.", "title": "History" }, { "paragraph_id": 10, "text": "The three stop codons were named by discoverers Richard Epstein and Charles Steinberg. \"Amber\" was named after their friend Harris Bernstein, whose last name means \"amber\" in German. The other two stop codons were named \"ochre\" and \"opal\" in order to keep the \"color names\" theme.", "title": "History" }, { "paragraph_id": 11, "text": "In a broad academic audience, the concept of the evolution of the genetic code from the original and ambiguous genetic code to a well-defined (\"frozen\") code with the repertoire of 20 (+2) canonical amino acids is widely accepted. However, there are different opinions, concepts, approaches and ideas, which is the best way to change it experimentally. Even models are proposed that predict \"entry points\" for synthetic amino acid invasion of the genetic code.", "title": "History" }, { "paragraph_id": 12, "text": "Since 2001, 40 non-natural amino acids have been added into proteins by creating a unique codon (recoding) and a corresponding transfer-RNA:aminoacyl – tRNA-synthetase pair to encode it with diverse physicochemical and biological properties in order to be used as a tool to exploring protein structure and function or to create novel or enhanced proteins.", "title": "History" }, { "paragraph_id": 13, "text": "H. Murakami and M. Sisido extended some codons to have four and five bases. Steven A. Benner constructed a functional 65th (in vivo) codon.", "title": "History" }, { "paragraph_id": 14, "text": "In 2015 N. Budisa, D. Söll and co-workers reported the full substitution of all 20,899 tryptophan residues (UGG codons) with unnatural thienopyrrole-alanine in the genetic code of the bacterium Escherichia coli.", "title": "History" }, { "paragraph_id": 15, "text": "In 2016 the first stable semisynthetic organism was created. It was a (single cell) bacterium with two synthetic bases (called X and Y). The bases survived cell division.", "title": "History" }, { "paragraph_id": 16, "text": "In 2017, researchers in South Korea reported that they had engineered a mouse with an extended genetic code that can produce proteins with unnatural amino acids.", "title": "History" }, { "paragraph_id": 17, "text": "In May 2019, researchers reported the creation of a new \"Syn61\" strain of the bacterium Escherichia coli. This strain has a fully synthetic genome that is refactored (all overlaps expanded), recoded (removing the use of three out of 64 codons completely), and further modified to remove the now unnecessary tRNAs and release factors. It is fully viable and grows 1.6× slower than its wild-type counterpart \"MDS42\".", "title": "History" }, { "paragraph_id": 18, "text": "A reading frame is defined by the initial triplet of nucleotides from which translation starts. It sets the frame for a run of successive, non-overlapping codons, which is known as an \"open reading frame\" (ORF). For example, the string 5'-AAATGAACG-3' (see figure), if read from the first position, contains the codons AAA, TGA, and ACG ; if read from the second position, it contains the codons AAT and GAA ; and if read from the third position, it contains the codons ATG and AAC. Every sequence can, thus, be read in its 5' → 3' direction in three reading frames, each producing a possibly distinct amino acid sequence: in the given example, Lys (K)-Trp (W)-Thr (T), Asn (N)-Glu (E), or Met (M)-Asn (N), respectively (when translating with the vertebrate mitochondrial code). When DNA is double-stranded, six possible reading frames are defined, three in the forward orientation on one strand and three reverse on the opposite strand. Protein-coding frames are defined by a start codon, usually the first AUG (ATG) codon in the RNA (DNA) sequence.", "title": "Features" }, { "paragraph_id": 19, "text": "In eukaryotes, ORFs in exons are often interrupted by introns.", "title": "Features" }, { "paragraph_id": 20, "text": "Translation starts with a chain-initiation codon or start codon. The start codon alone is not sufficient to begin the process. Nearby sequences such as the Shine-Dalgarno sequence in E. coli and initiation factors are also required to start translation. The most common start codon is AUG, which is read as methionine or as formylmethionine (in bacteria, mitochondria, and plastids). Alternative start codons depending on the organism include \"GUG\" or \"UUG\"; these codons normally represent valine and leucine, respectively, but as start codons they are translated as methionine or formylmethionine.", "title": "Features" }, { "paragraph_id": 21, "text": "The three stop codons have names: UAG is amber, UGA is opal (sometimes also called umber), and UAA is ochre. Stop codons are also called \"termination\" or \"nonsense\" codons. They signal release of the nascent polypeptide from the ribosome because no cognate tRNA has anticodons complementary to these stop signals, allowing a release factor to bind to the ribosome instead.", "title": "Features" }, { "paragraph_id": 22, "text": "During the process of DNA replication, errors occasionally occur in the polymerization of the second strand. These errors, mutations, can affect an organism's phenotype, especially if they occur within the protein coding sequence of a gene. Error rates are typically 1 error in every 10–100 million bases—due to the \"proofreading\" ability of DNA polymerases.", "title": "Features" }, { "paragraph_id": 23, "text": "Missense mutations and nonsense mutations are examples of point mutations that can cause genetic diseases such as sickle-cell disease and thalassemia respectively. Clinically important missense mutations generally change the properties of the coded amino acid residue among basic, acidic, polar or non-polar states, whereas nonsense mutations result in a stop codon.", "title": "Features" }, { "paragraph_id": 24, "text": "Mutations that disrupt the reading frame sequence by indels (insertions or deletions) of a non-multiple of 3 nucleotide bases are known as frameshift mutations. These mutations usually result in a completely different translation from the original, and likely cause a stop codon to be read, which truncates the protein. These mutations may impair the protein's function and are thus rare in in vivo protein-coding sequences. One reason inheritance of frameshift mutations is rare is that, if the protein being translated is essential for growth under the selective pressures the organism faces, absence of a functional protein may cause death before the organism becomes viable. Frameshift mutations may result in severe genetic diseases such as Tay–Sachs disease.", "title": "Features" }, { "paragraph_id": 25, "text": "Although most mutations that change protein sequences are harmful or neutral, some mutations have benefits. These mutations may enable the mutant organism to withstand particular environmental stresses better than wild type organisms, or reproduce more quickly. In these cases a mutation will tend to become more common in a population through natural selection. Viruses that use RNA as their genetic material have rapid mutation rates, which can be an advantage, since these viruses thereby evolve rapidly, and thus evade the immune system defensive responses. In large populations of asexually reproducing organisms, for example, E. coli, multiple beneficial mutations may co-occur. This phenomenon is called clonal interference and causes competition among the mutations.", "title": "Features" }, { "paragraph_id": 26, "text": "Degeneracy is the redundancy of the genetic code. This term was given by Bernfield and Nirenberg. The genetic code has redundancy but no ambiguity (see the codon tables below for the full correlation). For example, although codons GAA and GAG both specify glutamic acid (redundancy), neither specifies another amino acid (no ambiguity). The codons encoding one amino acid may differ in any of their three positions. For example, the amino acid leucine is specified by YUR or CUN (UUA, UUG, CUU, CUC, CUA, or CUG) codons (difference in the first or third position indicated using IUPAC notation), while the amino acid serine is specified by UCN or AGY (UCA, UCG, UCC, UCU, AGU, or AGC) codons (difference in the first, second, or third position). A practical consequence of redundancy is that errors in the third position of the triplet codon cause only a silent mutation or an error that would not affect the protein because the hydrophilicity or hydrophobicity is maintained by equivalent substitution of amino acids; for example, a codon of NUN (where N = any nucleotide) tends to code for hydrophobic amino acids. NCN yields amino acid residues that are small in size and moderate in hydropathicity; NAN encodes average size hydrophilic residues. The genetic code is so well-structured for hydropathicity that a mathematical analysis (Singular Value Decomposition) of 12 variables (4 nucleotides x 3 positions) yields a remarkable correlation (C = 0.95) for predicting the hydropathicity of the encoded amino acid directly from the triplet nucleotide sequence, without translation. Note in the table, below, eight amino acids are not affected at all by mutations at the third position of the codon, whereas in the figure above, a mutation at the second position is likely to cause a radical change in the physicochemical properties of the encoded amino acid. Nevertheless, changes in the first position of the codons are more important than changes in the second position on a global scale. The reason may be that charge reversal (from a positive to a negative charge or vice versa) can only occur upon mutations in the first position of certain codons, but not upon changes in the second position of any codon. Such charge reversal may have dramatic consequences for the structure or function of a protein. This aspect may have been largely underestimated by previous studies.", "title": "Features" }, { "paragraph_id": 27, "text": "The frequency of codons, also known as codon usage bias, can vary from species to species with functional implications for the control of translation. The codon varies by organism; for example, most common proline codon in E. coli is CCG, whereas in humans this is the least used proline codon.", "title": "Features" }, { "paragraph_id": 28, "text": "In some proteins, non-standard amino acids are substituted for standard stop codons, depending on associated signal sequences in the messenger RNA. For example, UGA can code for selenocysteine and UAG can code for pyrrolysine. Selenocysteine came to be seen as the 21st amino acid, and pyrrolysine as the 22nd. Unlike selenocysteine, pyrrolysine-encoded UAG is translated with the participation of a dedicated aminoacyl-tRNA synthetase. Both selenocysteine and pyrrolysine may be present in the same organism. Although the genetic code is normally fixed in an organism, the achaeal prokaryote Acetohalobium arabaticum can expand its genetic code from 20 to 21 amino acids (by including pyrrolysine) under different conditions of growth.", "title": "Alternative genetic codes" }, { "paragraph_id": 29, "text": "There was originally a simple and widely accepted argument that the genetic code should be universal: namely, that any variation in the genetic code would be lethal to the organism (although Crick had stated that viruses were an exception). This is known as the \"frozen accident\" argument for the universality of the genetic code. However, in his seminal paper on the origins of the genetic code in 1968, Francis Crick still stated that the universality of the genetic code in all organisms was an unproven assumption, and was probably not true in some instances. He predicted that \"The code is universal (the same in all organisms) or nearly so\". The first variation was discovered in 1979, by researchers studying human mitochondrial genes. Many slight variants were discovered thereafter, including various alternative mitochondrial codes. These minor variants for example involve translation of the codon UGA as tryptophan in Mycoplasma species, and translation of CUG as a serine rather than leucine in yeasts of the \"CTG clade\" (such as Candida albicans). Because viruses must use the same genetic code as their hosts, modifications to the standard genetic code could interfere with viral protein synthesis or functioning. However, viruses such as totiviruses have adapted to the host's genetic code modification. In bacteria and archaea, GUG and UUG are common start codons. In rare cases, certain proteins may use alternative start codons. Surprisingly, variations in the interpretation of the genetic code exist also in human nuclear-encoded genes: In 2016, researchers studying the translation of malate dehydrogenase found that in about 4% of the mRNAs encoding this enzyme the stop codon is naturally used to encode the amino acids tryptophan and arginine. This type of recoding is induced by a high-readthrough stop codon context and it is referred to as functional translational readthrough.", "title": "Alternative genetic codes" }, { "paragraph_id": 30, "text": "Despite these differences, all known naturally occurring codes are very similar. The coding mechanism is the same for all organisms: three-base codons, tRNA, ribosomes, single direction reading and translating single codons into single amino acids. The most extreme variations occur in certain ciliates where the meaning of stop codons depends on their position within mRNA. When close to the 3' end they act as terminators while in internal positions they either code for amino acids as in Condylostoma magnum or trigger ribosomal frameshifting as in Euplotes.", "title": "Alternative genetic codes" }, { "paragraph_id": 31, "text": "The origins and variation of the genetic code, including the mechanisms behind the evolvability of the genetic code, have been widely studied, and some studies have been done experimentally evolving the genetic code of some organisms.", "title": "Alternative genetic codes" }, { "paragraph_id": 32, "text": "Variant genetic codes used by an organism can be inferred by identifying highly conserved genes encoded in that genome, and comparing its codon usage to the amino acids in homologous proteins of other organisms. For example, the program FACIL infers a genetic code by searching which amino acids in homologous protein domains are most often aligned to every codon. The resulting amino acid (or stop codon) probabilities for each codon are displayed in a genetic code logo.", "title": "Alternative genetic codes" }, { "paragraph_id": 33, "text": "As of January 2022, the most complete survey of genetic codes is done by Shulgina and Eddy, who screened 250,000 prokaryotic genomes using their Codetta tool. This tool uses a similar approach to FACIL with a larger Pfam database. Despite the NCBI already providing 27 translation tables, the authors were able to find new 5 genetic code variations (corroborated by tRNA mutations) and correct several misattributions. Codetta was later used to analyze genetic code change in ciliates.", "title": "Alternative genetic codes" }, { "paragraph_id": 34, "text": "The genetic code is a key part of the history of life, according to one version of which self-replicating RNA molecules preceded life as we know it. This is the RNA world hypothesis. Under this hypothesis, any model for the emergence of the genetic code is intimately related to a model of the transfer from ribozymes (RNA enzymes) to proteins as the principal enzymes in cells. In line with the RNA world hypothesis, transfer RNA molecules appear to have evolved before modern aminoacyl-tRNA synthetases, so the latter cannot be part of the explanation of its patterns.", "title": "Origin" }, { "paragraph_id": 35, "text": "A hypothetical randomly evolved genetic code further motivates a biochemical or evolutionary model for its origin. If amino acids were randomly assigned to triplet codons, there would be 1.5 × 10 possible genetic codes. This number is found by calculating the number of ways that 21 items (20 amino acids plus one stop) can be placed in 64 bins, wherein each item is used at least once. However, the distribution of codon assignments in the genetic code is nonrandom. In particular, the genetic code clusters certain amino acid assignments.", "title": "Origin" }, { "paragraph_id": 36, "text": "Amino acids that share the same biosynthetic pathway tend to have the same first base in their codons. This could be an evolutionary relic of an early, simpler genetic code with fewer amino acids that later evolved to code a larger set of amino acids. It could also reflect steric and chemical properties that had another effect on the codon during its evolution. Amino acids with similar physical properties also tend to have similar codons, reducing the problems caused by point mutations and mistranslations.", "title": "Origin" }, { "paragraph_id": 37, "text": "Given the non-random genetic triplet coding scheme, a tenable hypothesis for the origin of genetic code could address multiple aspects of the codon table, such as absence of codons for D-amino acids, secondary codon patterns for some amino acids, confinement of synonymous positions to third position, the small set of only 20 amino acids (instead of a number approaching 64), and the relation of stop codon patterns to amino acid coding patterns.", "title": "Origin" }, { "paragraph_id": 38, "text": "Three main hypotheses address the origin of the genetic code. Many models belong to one of them or to a hybrid:", "title": "Origin" }, { "paragraph_id": 39, "text": "Hypotheses have addressed a variety of scenarios:", "title": "Origin" }, { "paragraph_id": 40, "text": "", "title": "External links" } ]
The genetic code is the set of rules used by living cells to translate information encoded within genetic material into proteins. Translation is accomplished by the ribosome, which links proteinogenic amino acids in an order specified by messenger RNA (mRNA), using transfer RNA (tRNA) molecules to carry amino acids and to read the mRNA three nucleotides at a time. The genetic code is highly similar among all organisms and can be expressed in a simple table with 64 entries. The codons specify which amino acid will be added next during protein biosynthesis. With some exceptions, a three-nucleotide codon in a nucleic acid sequence specifies a single amino acid. The vast majority of genes are encoded with a single scheme. That scheme is often referred to as the canonical or standard genetic code, or simply the genetic code, though variant codes exist.
2001-10-25T18:10:38Z
2023-12-26T05:32:53Z
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Golden ratio
In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. Expressed algebraically, for quantities a {\displaystyle a} and b {\displaystyle b} with a > b > 0 {\displaystyle a>b>0} , where the Greek letter phi ( φ {\displaystyle \varphi } or ϕ {\displaystyle \phi } ) denotes the golden ratio. The constant φ {\displaystyle \varphi } satisfies the quadratic equation φ 2 = φ + 1 {\displaystyle \varphi ^{2}=\varphi +1} and is an irrational number with a value of The golden ratio was called the extreme and mean ratio by Euclid, and the divine proportion by Luca Pacioli, and also goes by several other names. Mathematicians have studied the golden ratio's properties since antiquity. It is the ratio of a regular pentagon's diagonal to its side and thus appears in the construction of the dodecahedron and icosahedron. A golden rectangle—that is, a rectangle with an aspect ratio of φ {\displaystyle \varphi } —may be cut into a square and a smaller rectangle with the same aspect ratio. The golden ratio has been used to analyze the proportions of natural objects and artificial systems such as financial markets, in some cases based on dubious fits to data. The golden ratio appears in some patterns in nature, including the spiral arrangement of leaves and other parts of vegetation. Some 20th-century artists and architects, including Le Corbusier and Salvador Dalí, have proportioned their works to approximate the golden ratio, believing it to be aesthetically pleasing. These uses often appear in the form of a golden rectangle. Two quantities a {\displaystyle a} and b {\displaystyle b} are in the golden ratio φ {\displaystyle \varphi } if One method for finding a closed form for φ {\displaystyle \varphi } starts with the left fraction. Simplifying the fraction and substituting the reciprocal b / a = 1 / φ {\displaystyle b/a=1/\varphi } , Therefore, Multiplying by φ {\displaystyle \varphi } gives which can be rearranged to The quadratic formula yields two solutions: Because φ {\displaystyle \varphi } is a ratio between positive quantities, φ {\displaystyle \varphi } is necessarily the positive root. The negative root is in fact the negative inverse − 1 φ {\displaystyle -{\frac {1}{\varphi }}} , which shares many properties with the golden ratio. According to Mario Livio, Some of the greatest mathematical minds of all ages, from Pythagoras and Euclid in ancient Greece, through the medieval Italian mathematician Leonardo of Pisa and the Renaissance astronomer Johannes Kepler, to present-day scientific figures such as Oxford physicist Roger Penrose, have spent endless hours over this simple ratio and its properties. ... Biologists, artists, musicians, historians, architects, psychologists, and even mystics have pondered and debated the basis of its ubiquity and appeal. In fact, it is probably fair to say that the Golden Ratio has inspired thinkers of all disciplines like no other number in the history of mathematics. Ancient Greek mathematicians first studied the golden ratio because of its frequent appearance in geometry; the division of a line into "extreme and mean ratio" (the golden section) is important in the geometry of regular pentagrams and pentagons. According to one story, 5th-century BC mathematician Hippasus discovered that the golden ratio was neither a whole number nor a fraction (it is irrational), surprising Pythagoreans. Euclid's Elements (c. 300 BC) provides several propositions and their proofs employing the golden ratio, and contains its first known definition which proceeds as follows: A straight line is said to have been cut in extreme and mean ratio when, as the whole line is to the greater segment, so is the greater to the lesser. The golden ratio was studied peripherally over the next millennium. Abu Kamil (c. 850–930) employed it in his geometric calculations of pentagons and decagons; his writings influenced that of Fibonacci (Leonardo of Pisa) (c. 1170–1250), who used the ratio in related geometry problems but did not observe that it was connected to the Fibonacci numbers. Luca Pacioli named his book Divina proportione (1509) after the ratio; the book, largely plagiarized from Piero della Francesca, explored its properties including its appearance in some of the Platonic solids. Leonardo da Vinci, who illustrated Pacioli's book, called the ratio the sectio aurea ('golden section'). Though it is often said that Pacioli advocated the golden ratio's application to yield pleasing, harmonious proportions, Livio points out that the interpretation has been traced to an error in 1799, and that Pacioli actually advocated the Vitruvian system of rational proportions. Pacioli also saw Catholic religious significance in the ratio, which led to his work's title. 16th-century mathematicians such as Rafael Bombelli solved geometric problems using the ratio. German mathematician Simon Jacob (d. 1564) noted that consecutive Fibonacci numbers converge to the golden ratio; this was rediscovered by Johannes Kepler in 1608. The first known decimal approximation of the (inverse) golden ratio was stated as "about 0.6180340 {\displaystyle 0.6180340} " in 1597 by Michael Maestlin of the University of Tübingen in a letter to Kepler, his former student. The same year, Kepler wrote to Maestlin of the Kepler triangle, which combines the golden ratio with the Pythagorean theorem. Kepler said of these: Geometry has two great treasures: one is the theorem of Pythagoras, the other the division of a line into extreme and mean ratio. The first we may compare to a mass of gold, the second we may call a precious jewel. Eighteenth-century mathematicians Abraham de Moivre, Nicolaus I Bernoulli, and Leonhard Euler used a golden ratio-based formula which finds the value of a Fibonacci number based on its placement in the sequence; in 1843, this was rediscovered by Jacques Philippe Marie Binet, for whom it was named "Binet's formula". Martin Ohm first used the German term goldener Schnitt ('golden section') to describe the ratio in 1835. James Sully used the equivalent English term in 1875. By 1910, inventor Mark Barr began using the Greek letter phi ( φ {\displaystyle \varphi } ) as a symbol for the golden ratio. It has also been represented by tau ( τ {\displaystyle \tau } ), the first letter of the ancient Greek τομή ('cut' or 'section'). The zome construction system, developed by Steve Baer in the late 1960s, is based on the symmetry system of the icosahedron/dodecahedron, and uses the golden ratio ubiquitously. Between 1973 and 1974, Roger Penrose developed Penrose tiling, a pattern related to the golden ratio both in the ratio of areas of its two rhombic tiles and in their relative frequency within the pattern. This gained in interest after Dan Shechtman's Nobel-winning 1982 discovery of quasicrystals with icosahedral symmetry, which were soon afterward explained through analogies to the Penrose tiling. The golden ratio is an irrational number. Below are two short proofs of irrationality: Recall that: If we call the whole n {\displaystyle n} and the longer part m , {\displaystyle m,} then the second statement above becomes To say that the golden ratio φ {\displaystyle \varphi } is rational means that φ {\displaystyle \varphi } is a fraction n / m {\displaystyle n/m} where n {\displaystyle n} and m {\displaystyle m} are integers. We may take n / m {\displaystyle n/m} to be in lowest terms and n {\displaystyle n} and m {\displaystyle m} to be positive. But if n / m {\displaystyle n/m} is in lowest terms, then the equally valued m / ( n − m ) {\displaystyle m/(n-m)} is in still lower terms. That is a contradiction that follows from the assumption that φ {\displaystyle \varphi } is rational. Another short proof – perhaps more commonly known – of the irrationality of the golden ratio makes use of the closure of rational numbers under addition and multiplication. If φ = 1 2 ( 1 + 5 ) {\displaystyle \varphi ={\tfrac {1}{2}}(1+{\sqrt {5}})} is rational, then 2 φ − 1 = 5 {\displaystyle 2\varphi -1={\sqrt {5}}} is also rational, which is a contradiction if it is already known that the square root of all non-square natural numbers are irrational. The golden ratio is also an algebraic number and even an algebraic integer. It has minimal polynomial This quadratic polynomial has two roots, φ {\displaystyle \varphi } and − φ − 1 . {\displaystyle -\varphi ^{-1}.} The golden ratio is also closely related to the polynomial which has roots − φ {\displaystyle -\varphi } and φ − 1 . {\displaystyle \varphi ^{-1}.} As the root of a quadratic polynomial, the golden ratio is a constructible number. The conjugate root to the minimal polynomial x 2 − x − 1 {\displaystyle x^{2}-x-1} is The absolute value of this quantity ( 0.618 … {\displaystyle 0.618\ldots } ) corresponds to the length ratio taken in reverse order (shorter segment length over longer segment length, b / a {\displaystyle b/a} ). This illustrates the unique property of the golden ratio among positive numbers, that or its inverse: The conjugate and the defining quadratic polynomial relationship lead to decimal values that have their fractional part in common with φ {\displaystyle \varphi } : The sequence of powers of φ {\displaystyle \varphi } contains these values 0.618033 … , {\displaystyle 0.618033\ldots ,} 1.0 , {\displaystyle 1.0,} 1.618033 … , {\displaystyle 1.618033\ldots ,} 2.618033 … ; {\displaystyle 2.618033\ldots ;} more generally, any power of φ {\displaystyle \varphi } is equal to the sum of the two immediately preceding powers: As a result, one can easily decompose any power of φ {\displaystyle \varphi } into a multiple of φ {\displaystyle \varphi } and a constant. The multiple and the constant are always adjacent Fibonacci numbers. This leads to another property of the positive powers of φ {\displaystyle \varphi } : If ⌊ n / 2 − 1 ⌋ = m , {\displaystyle \lfloor n/2-1\rfloor =m,} then: The formula φ = 1 + 1 / φ {\displaystyle \varphi =1+1/\varphi } can be expanded recursively to obtain a continued fraction for the golden ratio: It is in fact the simplest form of a continued fraction, alongside its reciprocal form: The convergents of these continued fractions ( 1 / 1 , {\displaystyle 1/1,} 2 / 1 , {\displaystyle 2/1,} 2 / 1 , {\displaystyle 2/1,} 3 / 2 , {\displaystyle 3/2,} 5 / 3 , {\displaystyle 5/3,} 8 / 5 , {\displaystyle 8/5,} 13 / 8 , {\displaystyle 13/8,} ... or 1 / 1 , {\displaystyle 1/1,} 1 / 2 , {\displaystyle 1/2,} 2 / 3 , {\displaystyle 2/3,} 3 / 5 , {\displaystyle 3/5,} 5 / 8 , {\displaystyle 5/8,} 8 / 13 , {\displaystyle 8/13,} ...) are ratios of successive Fibonacci numbers. The consistently small terms in its continued fraction explain why the approximants converge so slowly. This makes the golden ratio an extreme case of the Hurwitz inequality for Diophantine approximations, which states that for every irrational ξ {\displaystyle \xi } , there are infinitely many distinct fractions p / q {\displaystyle p/q} such that, | ξ − p q | < 1 5 q 2 . {\displaystyle \left|\xi -{\frac {p}{q}}\right|<{\frac {1}{{\sqrt {5}}q^{2}}}.} This means that the constant 5 {\displaystyle {\sqrt {5}}} cannot be improved without excluding the golden ratio. It is, in fact, the smallest number that must be excluded to generate closer approximations of such Lagrange numbers. A continued square root form for φ {\displaystyle \varphi } can be obtained from φ 2 = 1 + φ {\displaystyle \varphi ^{2}=1+\varphi } , yielding: Fibonacci numbers and Lucas numbers have an intricate relationship with the golden ratio. In the Fibonacci sequence, each number is equal to the sum of the preceding two, starting with the base sequence 0 , 1 {\displaystyle 0,1} : The sequence of Lucas numbers (not to be confused with the generalized Lucas sequences, of which this is part) is like the Fibonacci sequence, in which each term is the sum of the previous two, however instead starts with 2 , 1 {\displaystyle 2,1} : Exceptionally, the golden ratio is equal to the limit of the ratios of successive terms in the Fibonacci sequence and sequence of Lucas numbers: In other words, if a Fibonacci and Lucas number is divided by its immediate predecessor in the sequence, the quotient approximates φ {\displaystyle \varphi } . For example, F 16 F 15 = 987 610 = 1.6180327 … , {\displaystyle {\frac {F_{16}}{F_{15}}}={\frac {987}{610}}=1.6180327\ldots ,} and L 16 L 15 = 2207 1364 = 1.6180351 … . {\displaystyle {\frac {L_{16}}{L_{15}}}={\frac {2207}{1364}}=1.6180351\ldots .} These approximations are alternately lower and higher than φ , {\displaystyle \varphi ,} and converge to φ {\displaystyle \varphi } as the Fibonacci and Lucas numbers increase. Closed-form expressions for the Fibonacci and Lucas sequences that involve the golden ratio are: Combining both formulas above, one obtains a formula for φ n {\displaystyle \varphi ^{n}} that involves both Fibonacci and Lucas numbers: Between Fibonacci and Lucas numbers one can deduce L 2 n = 5 F n 2 + 2 ( − 1 ) n = L n 2 − 2 ( − 1 ) n , {\displaystyle L_{2n}=5F_{n}^{2}+2(-1)^{n}=L_{n}^{2}-2(-1)^{n},} which simplifies to express the limit of the quotient of Lucas numbers by Fibonacci numbers as equal to the square root of five: Indeed, much stronger statements are true: These values describe φ {\displaystyle \varphi } as a fundamental unit of the algebraic number field Q ( 5 ) {\displaystyle \mathbb {Q} ({\sqrt {5}})} . Successive powers of the golden ratio obey the Fibonacci recurrence, i.e. φ n + 1 = φ n + φ n − 1 . {\displaystyle \varphi ^{n+1}=\varphi ^{n}+\varphi ^{n-1}.} The reduction to a linear expression can be accomplished in one step by using: This identity allows any polynomial in φ {\displaystyle \varphi } to be reduced to a linear expression, as in: Consecutive Fibonacci numbers can also be used to obtain a similar formula for the golden ratio, here by infinite summation: In particular, the powers of φ {\displaystyle \varphi } themselves round to Lucas numbers (in order, except for the first two powers, φ 0 {\displaystyle \varphi ^{0}} and φ {\displaystyle \varphi } , are in reverse order): and so forth. The Lucas numbers also directly generate powers of the golden ratio; for n ≥ 2 {\displaystyle n\geq 2} : Rooted in their interconnecting relationship with the golden ratio is the notion that the sum of third consecutive Fibonacci numbers equals a Lucas number, that is L n = F n − 1 + F n + 1 {\displaystyle L_{n}=F_{n-1}+F_{n+1}} ; and, importantly, that L n = F 2 n F n {\displaystyle L_{n}={\frac {F_{2n}}{F_{n}}}} . Both the Fibonacci sequence and the sequence of Lucas numbers can be used to generate approximate forms of the golden spiral (which is a special form of a logarithmic spiral) using quarter-circles with radii from these sequences, differing only slightly from the true golden logarithmic spiral. Fibonacci spiral is generally the term used for spirals that approximate golden spirals using Fibonacci number-sequenced squares and quarter-circles. The golden ratio features prominently in geometry. For example, it is intrinsically involved in the internal symmetry of the pentagon, and extends to form part of the coordinates of the vertices of a regular dodecahedron, as well as those of a 5-cell. It features in the Kepler triangle and Penrose tilings too, as well as in various other polytopes. Dividing by interior division Dividing by exterior division Application examples you can see in the articles Pentagon with a given side length, Decagon with given circumcircle and Decagon with a given side length. Both of the above displayed different algorithms produce geometric constructions that determine two aligned line segments where the ratio of the longer one to the shorter one is the golden ratio. When two angles that make a full circle have measures in the golden ratio, the smaller is called the golden angle, with measure g : {\textstyle g\colon } This angle occurs in patterns of plant growth as the optimal spacing of leaf shoots around plant stems so that successive leaves do not block sunlight from the leaves below them. In a regular pentagon the ratio of a diagonal to a side is the golden ratio, while intersecting diagonals section each other in the golden ratio. The golden ratio properties of a regular pentagon can be confirmed by applying Ptolemy's theorem to the quadrilateral formed by removing one of its vertices. If the quadrilateral's long edge and diagonals are a , {\displaystyle a,} and short edges are b , {\displaystyle b,} then Ptolemy's theorem gives a 2 = b 2 + a b . {\displaystyle a^{2}=b^{2}+ab.} Dividing both sides by a b {\displaystyle ab} yields (see § Calculation above), The diagonal segments of a pentagon form a pentagram, or five-pointed star polygon, whose geometry is quintessentially described by φ {\displaystyle \varphi } . Primarily, each intersection of edges sections other edges in the golden ratio. The ratio of the length of the shorter segment to the segment bounded by the two intersecting edges (that is, a side of the inverted pentagon in the pentagram's center) is φ , {\displaystyle \varphi ,} as the four-color illustration shows. Pentagonal and pentagrammic geometry permits us to calculate the following values for φ {\displaystyle \varphi } : The triangle formed by two diagonals and a side of a regular pentagon is called a golden triangle or sublime triangle. It is an acute isosceles triangle with apex angle 36° and base angles 72°. Its two equal sides are in the golden ratio to its base. The triangle formed by two sides and a diagonal of a regular pentagon is called a golden gnomon. It is an obtuse isosceles triangle with apex angle 108° and base angle 36°. Its base is in the golden ratio to its two equal sides. The pentagon can thus be subdivided into two golden gnomons and a central golden triangle. The five points of a regular pentagram are golden triangles, as are the ten triangles formed by connecting the vertices of a regular decagon to its center point. Bisecting one of the base angles of the golden triangle subdivides it into a smaller golden triangle and a golden gnomon. Analogously, any acute isosceles triangle can be subdivided into a similar triangle and an obtuse isosceles triangle, but the golden triangle is the only one for which this subdivision is made by the angle bisector, because it is the only isosceles triangle whose base angle is twice its apex angle. The angle bisector of the golden triangle subdivides the side that it meets in the golden ratio, and the areas of the two subdivided pieces are also in the golden ratio. If the apex angle of the golden gnomon is trisected, the trisector again subdivides it into a smaller golden gnomon and a golden triangle. The trisector subdivides the base in the golden ratio, and the two pieces have areas in the golden ratio. Analogously, any obtuse triangle can be subdivided into a similar triangle and an acute isosceles triangle, but the golden gnomon is the only one for which this subdivision is made by the angle trisector, because it is the only isosceles triangle whose apex angle is three times its base angle. The golden ratio appears prominently in the Penrose tiling, a family of aperiodic tilings of the plane developed by Roger Penrose, inspired by Johannes Kepler's remark that pentagrams, decagons, and other shapes could fill gaps that pentagonal shapes alone leave when tiled together. Several variations of this tiling have been studied, all of whose prototiles exhibit the golden ratio: George Odom found a construction for φ {\displaystyle \varphi } involving an equilateral triangle: if the line segment joining the midpoints of two sides is extended to intersect the circumcircle, then the two midpoints and the point of intersection with the circle are in golden proportion. The Kepler triangle, named after Johannes Kepler, is the unique right triangle with sides in geometric progression: These side lengths are the three Pythagorean means of the two numbers φ ± 1 {\displaystyle \varphi \pm 1} . The three squares on its sides have areas in the golden geometric progression 1 : φ : φ 2 {\displaystyle 1\mathbin {:} \varphi \mathbin {:} \varphi ^{2}} . Among isosceles triangles, the ratio of inradius to side length is maximized for the triangle formed by two reflected copies of the Kepler triangle, sharing the longer of their two legs. The same isosceles triangle maximizes the ratio of the radius of a semicircle on its base to its perimeter. For a Kepler triangle with smallest side length s {\displaystyle s} , the area and acute internal angles are: The golden ratio proportions the adjacent side lengths of a golden rectangle in 1 : φ {\displaystyle 1:\varphi } ratio. Stacking golden rectangles produces golden rectangles anew, and removing or adding squares from golden rectangles leaves rectangles still proportioned in φ {\displaystyle \varphi } ratio. They can be generated by golden spirals, through successive Fibonacci and Lucas number-sized squares and quarter circles. They feature prominently in the icosahedron as well as in the dodecahedron (see section below for more detail). A golden rhombus is a rhombus whose diagonals are in proportion to the golden ratio, most commonly 1 : φ {\displaystyle 1:\varphi } . For a rhombus of such proportions, its acute angle and obtuse angles are: The lengths of its short and long diagonals d {\displaystyle d} and D {\displaystyle D} , in terms of side length a {\displaystyle a} are: Its area, in terms of a {\displaystyle a} ,and d {\displaystyle d} : Its inradius, in terms of side a {\displaystyle a} : Golden rhombi form the faces of the rhombic triacontahedron, the two golden rhombohedra, the Bilinski dodecahedron, and the rhombic hexecontahedron. Logarithmic spirals are self-similar spirals where distances covered per turn are in geometric progression. A logarithmic spiral whose radius increases by a factor of the golden ratio for each quarter-turn is called the golden spiral. These spirals can be approximated by quarter-circles that grow by the golden ratio, or their approximations generated from Fibonacci numbers, often depicted inscribed within a spiraling pattern of squares growing in the same ratio. The exact logarithmic spiral form of the golden spiral can be described by the polar equation with ( r , θ ) {\displaystyle (r,\theta )} : Not all logarithmic spirals are connected to the golden ratio, and not all spirals that are connected to the golden ratio are the same shape as the golden spiral. For instance, a different logarithmic spiral, encasing a nested sequence of golden isosceles triangles, grows by the golden ratio for each 108° that it turns, instead of the 90° turning angle of the golden spiral. Another variation, called the "better golden spiral", grows by the golden ratio for each half-turn, rather than each quarter-turn. The regular dodecahedron and its dual polyhedron the icosahedron are Platonic solids whose dimensions are related to the golden ratio. An icosahedron is made of 12 {\displaystyle 12} regular pentagonal faces, whereas the icosahedron is made of 20 {\displaystyle 20} equilateral triangles; both with 30 {\displaystyle 30} edges. For a dodecahedron of side a {\displaystyle a} , the radius of a circumscribed and inscribed sphere, and midradius are ( r u , {\displaystyle r_{u},} r i , {\displaystyle r_{i},} and r m , {\displaystyle r_{m},} respectively): While for an icosahedron of side a {\displaystyle a} , the radius of a circumscribed and inscribed sphere, and midradius are: The volume and surface area of the dodecahedron can be expressed in terms of φ {\displaystyle \varphi } : As well as for the icosahedron: These geometric values can be calculated from their Cartesian coordinates, which also can be given using formulas involving φ {\displaystyle \varphi } . The coordinates of the dodecahedron are displayed on the figure above, while those of the icosahedron are the cyclic permutations of: Sets of three golden rectangles intersect perpendicularly inside dodecahedra and icosahedra, forming Borromean rings. In dodecahedra, pairs of opposing vertices in golden rectangles meet the centers of pentagonal faces, and in icosahedra, they meet at its vertices. In all, the three golden rectangles contain 12 {\displaystyle 12} vertices of the icosahedron, or equivalently, intersect the centers of 12 {\displaystyle 12} of the dodecahedron's faces. A cube can be inscribed in a regular dodecahedron, with some of the diagonals of the pentagonal faces of the dodecahedron serving as the cube's edges; therefore, the edge lengths are in the golden ratio. The cube's volume is 2 2 + φ {\displaystyle {\tfrac {2}{2+\varphi }}} times that of the dodecahedron's. In fact, golden rectangles inside a dodecahedron are in golden proportions to an inscribed cube, such that edges of a cube and the long edges of a golden rectangle are themselves in φ : φ 2 {\displaystyle \varphi :\varphi ^{2}} ratio. On the other hand, the octahedron, which is the dual polyhedron of the cube, can inscribe an icosahedron, such that an icosahedron's 12 {\displaystyle 12} vertices touch the 12 {\displaystyle 12} edges of an octahedron at points that divide its edges in golden ratio. Other polyhedra are related to the dodecahedron and icosahedron or their symmetries, and therefore have corresponding relations to the golden ratio. These include the compound of five cubes, compound of five octahedra, compound of five tetrahedra, the compound of ten tetrahedra, rhombic triacontahedron, icosidodecahedron, truncated icosahedron, truncated dodecahedron, and rhombicosidodecahedron, rhombic enneacontahedron, and Kepler-Poinsot polyhedra, and rhombic hexecontahedron. In four dimensions, the dodecahedron and icosahedron appear as faces of the 120-cell and 600-cell, which again have dimensions related to the golden ratio. The golden ratio's decimal expansion can be calculated via root-finding methods, such as Newton's method or Halley's method, on the equation x 2 − x − 1 = 0 {\displaystyle x^{2}-x-1=0} or on x 2 − 5 = 0 {\displaystyle x^{2}-5=0} (to compute 5 {\displaystyle {\sqrt {5}}} first). The time needed to compute n {\displaystyle n} digits of the golden ratio using Newton's method is essentially O ( M ( n ) ) {\displaystyle O(M(n))} , where M ( n ) {\displaystyle M(n)} is the time complexity of multiplying two n {\displaystyle n} -digit numbers. This is considerably faster than known algorithms for π {\displaystyle \pi } and e {\displaystyle e} . An easily programmed alternative using only integer arithmetic is to calculate two large consecutive Fibonacci numbers and divide them. The ratio of Fibonacci numbers F 25001 {\displaystyle F_{25001}} and F 25000 , {\displaystyle F_{25000},} each over 5000 {\displaystyle 5000} digits, yields over 10,000 {\displaystyle 10{,}000} significant digits of the golden ratio. The decimal expansion of the golden ratio φ {\displaystyle \varphi } has been calculated to an accuracy of ten trillion ( 1 × 10 13 = 10,000,000,000,000 {\displaystyle 1\times 10^{13}=10{,}000{,}000{,}000{,}000} ) digits. In the complex plane, the fifth roots of unity z = e 2 π k i / 5 {\displaystyle z=e^{2\pi ki/5}} (for an integer k {\textstyle k} ) satisfying z 5 = 1 {\displaystyle z^{5}=1} are the vertices of a pentagon. They do not form a ring of quadratic integers, however the sum of any fifth root of unity and its complex conjugate, z + z ¯ , {\displaystyle z+{\bar {z}},} is a quadratic integer, an element of Z [ φ ] . {\textstyle \mathbb {Z} [\varphi ].} Specifically, This also holds for the remaining tenth roots of unity satisfying z 10 = 1 , {\displaystyle z^{10}=1,} For the gamma function Γ {\displaystyle \Gamma } , the only solutions to the equation Γ ( z − 1 ) = Γ ( z + 1 ) {\displaystyle \Gamma (z-1)=\Gamma (z+1)} are z = φ {\displaystyle z=\varphi } and z = − φ − 1 {\displaystyle z=-\varphi ^{-1}} . When the golden ratio is used as the base of a numeral system (see golden ratio base, sometimes dubbed phinary or φ {\displaystyle \varphi } -nary), quadratic integers in the ring Z [ φ ] {\displaystyle \mathbb {Z} [\varphi ]} – that is, numbers of the form a + b φ {\displaystyle a+b\varphi } for a , b ∈ Z {\displaystyle a,b\in \mathbb {Z} } – have terminating representations, but rational fractions have non-terminating representations. The golden ratio also appears in hyperbolic geometry, as the maximum distance from a point on one side of an ideal triangle to the closer of the other two sides: this distance, the side length of the equilateral triangle formed by the points of tangency of a circle inscribed within the ideal triangle, is 4 log ( φ ) . {\displaystyle 4\log(\varphi ).} The golden ratio appears in the theory of modular functions as well. For | q | < 1 {\displaystyle \left|q\right|<1} , let Then and where Im τ > 0 {\displaystyle \operatorname {Im} \tau >0} and ( e z ) 1 / 5 {\displaystyle (e^{z})^{1/5}} in the continued fraction should be evaluated as e z / 5 {\displaystyle e^{z/5}} . The function τ ↦ R ( e 2 π i τ ) {\displaystyle \tau \mapsto R(e^{2\pi i\tau })} is invariant under Γ ( 5 ) {\displaystyle \Gamma (5)} , a congruence subgroup of the modular group. Also for positive real numbers a , b ∈ R + {\displaystyle a,b\in \mathbb {R} ^{+}} and a b = π 2 , {\displaystyle ab=\pi ^{2},} then φ {\displaystyle \varphi } is a Pisot–Vijayaraghavan number. The Swiss architect Le Corbusier, famous for his contributions to the modern international style, centered his design philosophy on systems of harmony and proportion. Le Corbusier's faith in the mathematical order of the universe was closely bound to the golden ratio and the Fibonacci series, which he described as "rhythms apparent to the eye and clear in their relations with one another. And these rhythms are at the very root of human activities. They resound in man by an organic inevitability, the same fine inevitability which causes the tracing out of the Golden Section by children, old men, savages and the learned." Le Corbusier explicitly used the golden ratio in his Modulor system for the scale of architectural proportion. He saw this system as a continuation of the long tradition of Vitruvius, Leonardo da Vinci's "Vitruvian Man", the work of Leon Battista Alberti, and others who used the proportions of the human body to improve the appearance and function of architecture. In addition to the golden ratio, Le Corbusier based the system on human measurements, Fibonacci numbers, and the double unit. He took suggestion of the golden ratio in human proportions to an extreme: he sectioned his model human body's height at the navel with the two sections in golden ratio, then subdivided those sections in golden ratio at the knees and throat; he used these golden ratio proportions in the Modulor system. Le Corbusier's 1927 Villa Stein in Garches exemplified the Modulor system's application. The villa's rectangular ground plan, elevation, and inner structure closely approximate golden rectangles. Another Swiss architect, Mario Botta, bases many of his designs on geometric figures. Several private houses he designed in Switzerland are composed of squares and circles, cubes and cylinders. In a house he designed in Origlio, the golden ratio is the proportion between the central section and the side sections of the house. Leonardo da Vinci's illustrations of polyhedra in Pacioli's Divina proportione have led some to speculate that he incorporated the golden ratio in his paintings. But the suggestion that his Mona Lisa, for example, employs golden ratio proportions, is not supported by Leonardo's own writings. Similarly, although Leonardo's Vitruvian Man is often shown in connection with the golden ratio, the proportions of the figure do not actually match it, and the text only mentions whole number ratios. Salvador Dalí, influenced by the works of Matila Ghyka, explicitly used the golden ratio in his masterpiece, The Sacrament of the Last Supper. The dimensions of the canvas are a golden rectangle. A huge dodecahedron, in perspective so that edges appear in golden ratio to one another, is suspended above and behind Jesus and dominates the composition. A statistical study on 565 works of art of different great painters, performed in 1999, found that these artists had not used the golden ratio in the size of their canvases. The study concluded that the average ratio of the two sides of the paintings studied is 1.34 , {\displaystyle 1.34,} with averages for individual artists ranging from 1.04 {\displaystyle 1.04} (Goya) to 1.46 {\displaystyle 1.46} (Bellini). On the other hand, Pablo Tosto listed over 350 works by well-known artists, including more than 100 which have canvasses with golden rectangle and 5 {\displaystyle {\sqrt {5}}} proportions, and others with proportions like 2 , {\displaystyle {\sqrt {2}},} 3 , {\displaystyle 3,} 4 , {\displaystyle 4,} and 6. {\displaystyle 6.} According to Jan Tschichold, There was a time when deviations from the truly beautiful page proportions 2 : 3 , {\displaystyle 2\mathbin {:} 3,} 1 : 3 , {\displaystyle 1\mathbin {:} {\sqrt {3}},} and the Golden Section were rare. Many books produced between 1550 and 1770 show these proportions exactly, to within half a millimeter. According to some sources, the golden ratio is used in everyday design, for example in the proportions of playing cards, postcards, posters, light switch plates, and widescreen televisions. The aspect ratio (width to height ratio) of the flag of Togo was intended to be the golden ratio, according to its designer. Ernő Lendvai analyzes Béla Bartók's works as being based on two opposing systems, that of the golden ratio and the acoustic scale, though other music scholars reject that analysis. French composer Erik Satie used the golden ratio in several of his pieces, including Sonneries de la Rose+Croix. The golden ratio is also apparent in the organization of the sections in the music of Debussy's Reflets dans l'eau (Reflections in Water), from Images (1st series, 1905), in which "the sequence of keys is marked out by the intervals 34, 21, 13 and 8, and the main climax sits at the phi position". The musicologist Roy Howat has observed that the formal boundaries of Debussy's La Mer correspond exactly to the golden section. Trezise finds the intrinsic evidence "remarkable", but cautions that no written or reported evidence suggests that Debussy consciously sought such proportions. Music theorists including Hans Zender and Heinz Bohlen have experimented with the 833 cents scale, a musical scale based on using the golden ratio as its fundamental musical interval. When measured in cents, a logarithmic scale for musical intervals, the golden ratio is approximately 833.09 cents. Johannes Kepler wrote that "the image of man and woman stems from the divine proportion. In my opinion, the propagation of plants and the progenitive acts of animals are in the same ratio". The psychologist Adolf Zeising noted that the golden ratio appeared in phyllotaxis and argued from these patterns in nature that the golden ratio was a universal law. Zeising wrote in 1854 of a universal orthogenetic law of "striving for beauty and completeness in the realms of both nature and art". However, some have argued that many apparent manifestations of the golden ratio in nature, especially in regard to animal dimensions, are fictitious. The quasi-one-dimensional Ising ferromagnet CoNb 2 O 6 {\textstyle {\ce {CoNb2O6}}} (cobalt niobate) has 8 predicted excitation states (with E8 symmetry), that when probed with neutron scattering, showed its lowest two were in golden ratio. Specifically, these quantum phase transitions during spin excitation, which occur at near absolute zero temperature, showed pairs of kinks in its ordered-phase to spin-flips in its paramagnetic phase; revealing, just below its critical field, a spin dynamics with sharp modes at low energies approaching the golden mean. There is no known general algorithm to arrange a given number of nodes evenly on a sphere, for any of several definitions of even distribution (see, for example, Thomson problem or Tammes problem). However, a useful approximation results from dividing the sphere into parallel bands of equal surface area and placing one node in each band at longitudes spaced by a golden section of the circle, i.e. 360 ∘ / φ ≈ 222.5 ∘ . {\displaystyle 360^{\circ }/\varphi \approx 222.5^{\circ }.} This method was used to arrange the 1500 mirrors of the student-participatory satellite Starshine-3. The golden ratio is a critical element to golden-section search as well. Examples of disputed observations of the golden ratio include the following: The Great Pyramid of Giza (also known as the Pyramid of Cheops or Khufu) has been analyzed by pyramidologists as having a doubled Kepler triangle as its cross-section. If this theory were true, the golden ratio would describe the ratio of distances from the midpoint of one of the sides of the pyramid to its apex, and from the same midpoint to the center of the pyramid's base. However, imprecision in measurement caused in part by the removal of the outer surface of the pyramid makes it impossible to distinguish this theory from other numerical theories of the proportions of the pyramid, based on pi or on whole-number ratios. The consensus of modern scholars is that this pyramid's proportions are not based on the golden ratio, because such a basis would be inconsistent both with what is known about Egyptian mathematics from the time of construction of the pyramid, and with Egyptian theories of architecture and proportion used in their other works. The Parthenon's façade (c. 432 BC) as well as elements of its façade and elsewhere are said by some to be circumscribed by golden rectangles. Other scholars deny that the Greeks had any aesthetic association with golden ratio. For example, Keith Devlin says, "Certainly, the oft repeated assertion that the Parthenon in Athens is based on the golden ratio is not supported by actual measurements. In fact, the entire story about the Greeks and golden ratio seems to be without foundation." Midhat J. Gazalé affirms that "It was not until Euclid ... that the golden ratio's mathematical properties were studied." From measurements of 15 temples, 18 monumental tombs, 8 sarcophagi, and 58 grave stelae from the fifth century BC to the second century AD, one researcher concluded that the golden ratio was totally absent from Greek architecture of the classical fifth century BC, and almost absent during the following six centuries. Later sources like Vitruvius (first century BC) exclusively discuss proportions that can be expressed in whole numbers, i.e. commensurate as opposed to irrational proportions. The Section d'Or ('Golden Section') was a collective of painters, sculptors, poets and critics associated with Cubism and Orphism. Active from 1911 to around 1914, they adopted the name both to highlight that Cubism represented the continuation of a grand tradition, rather than being an isolated movement, and in homage to the mathematical harmony associated with Georges Seurat. (Several authors have claimed that Seurat employed the golden ratio in his paintings, but Seurat’s writings and paintings suggest that he employed simple whole-number ratios and any approximation of the golden ratio was coincidental.) The Cubists observed in its harmonies, geometric structuring of motion and form, "the primacy of idea over nature", "an absolute scientific clarity of conception". However, despite this general interest in mathematical harmony, whether the paintings featured in the celebrated 1912 Salon de la Section d'Or exhibition used the golden ratio in any compositions is more difficult to determine. Livio, for example, claims that they did not, and Marcel Duchamp said as much in an interview. On the other hand, an analysis suggests that Juan Gris made use of the golden ratio in composing works that were likely, but not definitively, shown at the exhibition. Art historian Daniel Robbins has argued that in addition to referencing the mathematical term, the exhibition's name also refers to the earlier Bandeaux d'Or group, with which Albert Gleizes and other former members of the Abbaye de Créteil had been involved. Piet Mondrian has been said to have used the golden section extensively in his geometrical paintings, though other experts (including critic Yve-Alain Bois) have discredited these claims. Clason, Robert G (1994). "A family of golden triangle tile patterns". The Mathematical Gazette. 78 (482): 130–148. doi:10.2307/3618569. JSTOR 3618569. S2CID 126206189. Johnson, Art (1999). Famous problems and their mathematicians. Teacher Ideas Press. p. 45. ISBN 9781563084461. The Golden Ratio is a standard feature of many modern designs, from postcards and credit cards to posters and light-switch plates. Stakhov, Alexey P.; Olsen, Scott (2009). "§1.4.1 A Golden Rectangle with a Side Ratio of τ". The Mathematics of Harmony: From Euclid to Contemporary Mathematics and Computer Science. World Scientific. pp. 20–21. A credit card has a form of the golden rectangle Cox, Simon (2004). Cracking the Da Vinci Code. Barnes & Noble. p. 62. The Golden Ratio also crops up in some very unlikely places: widescreen televisions, postcards, credit cards and photographs all commonly conform to its proportions. Hasegawa, Robert (2011). "Gegenstrebige Harmonik in the Music of Hans Zender". Perspectives of New Music. Project Muse. 49 (1): 207–234. doi:10.1353/pnm.2011.0000. JSTOR 10.7757/persnewmusi.49.1.0207. Smethurst, Reilly (2016). "Two Non-Octave Tunings by Heinz Bohlen: A Practical Proposal". In Torrence, Eve; et al. (eds.). Proceedings of Bridges 2016. Jyväskylä, Finland. Tessellations Publishing. pp. 519–522. Padovan, Richard (2002). "Proportion: Science, Philosophy, Architecture". Nexus Network Journal. 4 (1): 113–122. doi:10.1007/s00004-001-0008-7. Rossi, Corinna (2004). Architecture and Mathematics in Ancient Egypt. Cambridge University Press. pp. 67–68. there is no direct evidence in any ancient Egyptian written mathematical source of any arithmetic calculation or geometrical construction which could be classified as the Golden Section ... convergence to φ {\displaystyle \varphi } , and φ {\displaystyle \varphi } itself as a number, do not fit with the extant Middle Kingdom mathematical sources; see also extensive discussion of multiple alternative theories for the shape of the pyramid and other Egyptian architecture, pp. 7–56 Rossi, Corinna; Tout, Christopher A. (2002). "Were the Fibonacci series and the Golden Section known in ancient Egypt?". Historia Mathematica. 29 (2): 101–113. doi:10.1006/hmat.2001.2334. hdl:11311/997099. Markowsky, George (1992). "Misconceptions about the Golden Ratio" (PDF). The College Mathematics Journal. Mathematical Association of America. 23 (1): 2–19. doi:10.2307/2686193. JSTOR 2686193. Retrieved 2012-06-29. It does not appear that the Egyptians even knew of the existence of φ {\displaystyle \varphi } much less incorporated it in their buildings Cottington, David (2004). Cubism and Its Histories. Manchester University Press. p. 112, 142.
[ { "paragraph_id": 0, "text": "In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. Expressed algebraically, for quantities a {\\displaystyle a} and b {\\displaystyle b} with a > b > 0 {\\displaystyle a>b>0} ,", "title": "" }, { "paragraph_id": 1, "text": "where the Greek letter phi ( φ {\\displaystyle \\varphi } or ϕ {\\displaystyle \\phi } ) denotes the golden ratio. The constant φ {\\displaystyle \\varphi } satisfies the quadratic equation φ 2 = φ + 1 {\\displaystyle \\varphi ^{2}=\\varphi +1} and is an irrational number with a value of", "title": "" }, { "paragraph_id": 2, "text": "The golden ratio was called the extreme and mean ratio by Euclid, and the divine proportion by Luca Pacioli, and also goes by several other names.", "title": "" }, { "paragraph_id": 3, "text": "Mathematicians have studied the golden ratio's properties since antiquity. It is the ratio of a regular pentagon's diagonal to its side and thus appears in the construction of the dodecahedron and icosahedron. A golden rectangle—that is, a rectangle with an aspect ratio of φ {\\displaystyle \\varphi } —may be cut into a square and a smaller rectangle with the same aspect ratio. The golden ratio has been used to analyze the proportions of natural objects and artificial systems such as financial markets, in some cases based on dubious fits to data. The golden ratio appears in some patterns in nature, including the spiral arrangement of leaves and other parts of vegetation.", "title": "" }, { "paragraph_id": 4, "text": "Some 20th-century artists and architects, including Le Corbusier and Salvador Dalí, have proportioned their works to approximate the golden ratio, believing it to be aesthetically pleasing. These uses often appear in the form of a golden rectangle.", "title": "" }, { "paragraph_id": 5, "text": "Two quantities a {\\displaystyle a} and b {\\displaystyle b} are in the golden ratio φ {\\displaystyle \\varphi } if", "title": "Calculation" }, { "paragraph_id": 6, "text": "One method for finding a closed form for φ {\\displaystyle \\varphi } starts with the left fraction. Simplifying the fraction and substituting the reciprocal b / a = 1 / φ {\\displaystyle b/a=1/\\varphi } ,", "title": "Calculation" }, { "paragraph_id": 7, "text": "Therefore,", "title": "Calculation" }, { "paragraph_id": 8, "text": "Multiplying by φ {\\displaystyle \\varphi } gives", "title": "Calculation" }, { "paragraph_id": 9, "text": "which can be rearranged to", "title": "Calculation" }, { "paragraph_id": 10, "text": "The quadratic formula yields two solutions:", "title": "Calculation" }, { "paragraph_id": 11, "text": "Because φ {\\displaystyle \\varphi } is a ratio between positive quantities, φ {\\displaystyle \\varphi } is necessarily the positive root. The negative root is in fact the negative inverse − 1 φ {\\displaystyle -{\\frac {1}{\\varphi }}} , which shares many properties with the golden ratio.", "title": "Calculation" }, { "paragraph_id": 12, "text": "According to Mario Livio,", "title": "History" }, { "paragraph_id": 13, "text": "Some of the greatest mathematical minds of all ages, from Pythagoras and Euclid in ancient Greece, through the medieval Italian mathematician Leonardo of Pisa and the Renaissance astronomer Johannes Kepler, to present-day scientific figures such as Oxford physicist Roger Penrose, have spent endless hours over this simple ratio and its properties. ... Biologists, artists, musicians, historians, architects, psychologists, and even mystics have pondered and debated the basis of its ubiquity and appeal. In fact, it is probably fair to say that the Golden Ratio has inspired thinkers of all disciplines like no other number in the history of mathematics.", "title": "History" }, { "paragraph_id": 14, "text": "Ancient Greek mathematicians first studied the golden ratio because of its frequent appearance in geometry; the division of a line into \"extreme and mean ratio\" (the golden section) is important in the geometry of regular pentagrams and pentagons. According to one story, 5th-century BC mathematician Hippasus discovered that the golden ratio was neither a whole number nor a fraction (it is irrational), surprising Pythagoreans. Euclid's Elements (c. 300 BC) provides several propositions and their proofs employing the golden ratio, and contains its first known definition which proceeds as follows:", "title": "History" }, { "paragraph_id": 15, "text": "A straight line is said to have been cut in extreme and mean ratio when, as the whole line is to the greater segment, so is the greater to the lesser.", "title": "History" }, { "paragraph_id": 16, "text": "The golden ratio was studied peripherally over the next millennium. Abu Kamil (c. 850–930) employed it in his geometric calculations of pentagons and decagons; his writings influenced that of Fibonacci (Leonardo of Pisa) (c. 1170–1250), who used the ratio in related geometry problems but did not observe that it was connected to the Fibonacci numbers.", "title": "History" }, { "paragraph_id": 17, "text": "Luca Pacioli named his book Divina proportione (1509) after the ratio; the book, largely plagiarized from Piero della Francesca, explored its properties including its appearance in some of the Platonic solids. Leonardo da Vinci, who illustrated Pacioli's book, called the ratio the sectio aurea ('golden section'). Though it is often said that Pacioli advocated the golden ratio's application to yield pleasing, harmonious proportions, Livio points out that the interpretation has been traced to an error in 1799, and that Pacioli actually advocated the Vitruvian system of rational proportions. Pacioli also saw Catholic religious significance in the ratio, which led to his work's title. 16th-century mathematicians such as Rafael Bombelli solved geometric problems using the ratio.", "title": "History" }, { "paragraph_id": 18, "text": "German mathematician Simon Jacob (d. 1564) noted that consecutive Fibonacci numbers converge to the golden ratio; this was rediscovered by Johannes Kepler in 1608. The first known decimal approximation of the (inverse) golden ratio was stated as \"about 0.6180340 {\\displaystyle 0.6180340} \" in 1597 by Michael Maestlin of the University of Tübingen in a letter to Kepler, his former student. The same year, Kepler wrote to Maestlin of the Kepler triangle, which combines the golden ratio with the Pythagorean theorem. Kepler said of these:", "title": "History" }, { "paragraph_id": 19, "text": "Geometry has two great treasures: one is the theorem of Pythagoras, the other the division of a line into extreme and mean ratio. The first we may compare to a mass of gold, the second we may call a precious jewel.", "title": "History" }, { "paragraph_id": 20, "text": "Eighteenth-century mathematicians Abraham de Moivre, Nicolaus I Bernoulli, and Leonhard Euler used a golden ratio-based formula which finds the value of a Fibonacci number based on its placement in the sequence; in 1843, this was rediscovered by Jacques Philippe Marie Binet, for whom it was named \"Binet's formula\". Martin Ohm first used the German term goldener Schnitt ('golden section') to describe the ratio in 1835. James Sully used the equivalent English term in 1875.", "title": "History" }, { "paragraph_id": 21, "text": "By 1910, inventor Mark Barr began using the Greek letter phi ( φ {\\displaystyle \\varphi } ) as a symbol for the golden ratio. It has also been represented by tau ( τ {\\displaystyle \\tau } ), the first letter of the ancient Greek τομή ('cut' or 'section').", "title": "History" }, { "paragraph_id": 22, "text": "The zome construction system, developed by Steve Baer in the late 1960s, is based on the symmetry system of the icosahedron/dodecahedron, and uses the golden ratio ubiquitously. Between 1973 and 1974, Roger Penrose developed Penrose tiling, a pattern related to the golden ratio both in the ratio of areas of its two rhombic tiles and in their relative frequency within the pattern. This gained in interest after Dan Shechtman's Nobel-winning 1982 discovery of quasicrystals with icosahedral symmetry, which were soon afterward explained through analogies to the Penrose tiling.", "title": "History" }, { "paragraph_id": 23, "text": "The golden ratio is an irrational number. Below are two short proofs of irrationality:", "title": "Mathematics" }, { "paragraph_id": 24, "text": "Recall that:", "title": "Mathematics" }, { "paragraph_id": 25, "text": "If we call the whole n {\\displaystyle n} and the longer part m , {\\displaystyle m,} then the second statement above becomes", "title": "Mathematics" }, { "paragraph_id": 26, "text": "To say that the golden ratio φ {\\displaystyle \\varphi } is rational means that φ {\\displaystyle \\varphi } is a fraction n / m {\\displaystyle n/m} where n {\\displaystyle n} and m {\\displaystyle m} are integers. We may take n / m {\\displaystyle n/m} to be in lowest terms and n {\\displaystyle n} and m {\\displaystyle m} to be positive. But if n / m {\\displaystyle n/m} is in lowest terms, then the equally valued m / ( n − m ) {\\displaystyle m/(n-m)} is in still lower terms. That is a contradiction that follows from the assumption that φ {\\displaystyle \\varphi } is rational.", "title": "Mathematics" }, { "paragraph_id": 27, "text": "Another short proof – perhaps more commonly known – of the irrationality of the golden ratio makes use of the closure of rational numbers under addition and multiplication. If φ = 1 2 ( 1 + 5 ) {\\displaystyle \\varphi ={\\tfrac {1}{2}}(1+{\\sqrt {5}})} is rational, then 2 φ − 1 = 5 {\\displaystyle 2\\varphi -1={\\sqrt {5}}} is also rational, which is a contradiction if it is already known that the square root of all non-square natural numbers are irrational.", "title": "Mathematics" }, { "paragraph_id": 28, "text": "The golden ratio is also an algebraic number and even an algebraic integer. It has minimal polynomial", "title": "Mathematics" }, { "paragraph_id": 29, "text": "This quadratic polynomial has two roots, φ {\\displaystyle \\varphi } and − φ − 1 . {\\displaystyle -\\varphi ^{-1}.}", "title": "Mathematics" }, { "paragraph_id": 30, "text": "The golden ratio is also closely related to the polynomial", "title": "Mathematics" }, { "paragraph_id": 31, "text": "which has roots − φ {\\displaystyle -\\varphi } and φ − 1 . {\\displaystyle \\varphi ^{-1}.} As the root of a quadratic polynomial, the golden ratio is a constructible number.", "title": "Mathematics" }, { "paragraph_id": 32, "text": "The conjugate root to the minimal polynomial x 2 − x − 1 {\\displaystyle x^{2}-x-1} is", "title": "Mathematics" }, { "paragraph_id": 33, "text": "The absolute value of this quantity ( 0.618 … {\\displaystyle 0.618\\ldots } ) corresponds to the length ratio taken in reverse order (shorter segment length over longer segment length, b / a {\\displaystyle b/a} ).", "title": "Mathematics" }, { "paragraph_id": 34, "text": "This illustrates the unique property of the golden ratio among positive numbers, that", "title": "Mathematics" }, { "paragraph_id": 35, "text": "or its inverse:", "title": "Mathematics" }, { "paragraph_id": 36, "text": "The conjugate and the defining quadratic polynomial relationship lead to decimal values that have their fractional part in common with φ {\\displaystyle \\varphi } :", "title": "Mathematics" }, { "paragraph_id": 37, "text": "The sequence of powers of φ {\\displaystyle \\varphi } contains these values 0.618033 … , {\\displaystyle 0.618033\\ldots ,} 1.0 , {\\displaystyle 1.0,} 1.618033 … , {\\displaystyle 1.618033\\ldots ,} 2.618033 … ; {\\displaystyle 2.618033\\ldots ;} more generally, any power of φ {\\displaystyle \\varphi } is equal to the sum of the two immediately preceding powers:", "title": "Mathematics" }, { "paragraph_id": 38, "text": "As a result, one can easily decompose any power of φ {\\displaystyle \\varphi } into a multiple of φ {\\displaystyle \\varphi } and a constant. The multiple and the constant are always adjacent Fibonacci numbers. This leads to another property of the positive powers of φ {\\displaystyle \\varphi } :", "title": "Mathematics" }, { "paragraph_id": 39, "text": "If ⌊ n / 2 − 1 ⌋ = m , {\\displaystyle \\lfloor n/2-1\\rfloor =m,} then:", "title": "Mathematics" }, { "paragraph_id": 40, "text": "The formula φ = 1 + 1 / φ {\\displaystyle \\varphi =1+1/\\varphi } can be expanded recursively to obtain a continued fraction for the golden ratio:", "title": "Mathematics" }, { "paragraph_id": 41, "text": "It is in fact the simplest form of a continued fraction, alongside its reciprocal form:", "title": "Mathematics" }, { "paragraph_id": 42, "text": "The convergents of these continued fractions ( 1 / 1 , {\\displaystyle 1/1,} 2 / 1 , {\\displaystyle 2/1,} 2 / 1 , {\\displaystyle 2/1,} 3 / 2 , {\\displaystyle 3/2,} 5 / 3 , {\\displaystyle 5/3,} 8 / 5 , {\\displaystyle 8/5,} 13 / 8 , {\\displaystyle 13/8,} ... or 1 / 1 , {\\displaystyle 1/1,} 1 / 2 , {\\displaystyle 1/2,} 2 / 3 , {\\displaystyle 2/3,} 3 / 5 , {\\displaystyle 3/5,} 5 / 8 , {\\displaystyle 5/8,} 8 / 13 , {\\displaystyle 8/13,} ...) are ratios of successive Fibonacci numbers. The consistently small terms in its continued fraction explain why the approximants converge so slowly. This makes the golden ratio an extreme case of the Hurwitz inequality for Diophantine approximations, which states that for every irrational ξ {\\displaystyle \\xi } , there are infinitely many distinct fractions p / q {\\displaystyle p/q} such that,", "title": "Mathematics" }, { "paragraph_id": 43, "text": "| ξ − p q | < 1 5 q 2 . {\\displaystyle \\left|\\xi -{\\frac {p}{q}}\\right|<{\\frac {1}{{\\sqrt {5}}q^{2}}}.}", "title": "Mathematics" }, { "paragraph_id": 44, "text": "This means that the constant 5 {\\displaystyle {\\sqrt {5}}} cannot be improved without excluding the golden ratio. It is, in fact, the smallest number that must be excluded to generate closer approximations of such Lagrange numbers.", "title": "Mathematics" }, { "paragraph_id": 45, "text": "A continued square root form for φ {\\displaystyle \\varphi } can be obtained from φ 2 = 1 + φ {\\displaystyle \\varphi ^{2}=1+\\varphi } , yielding:", "title": "Mathematics" }, { "paragraph_id": 46, "text": "Fibonacci numbers and Lucas numbers have an intricate relationship with the golden ratio. In the Fibonacci sequence, each number is equal to the sum of the preceding two, starting with the base sequence 0 , 1 {\\displaystyle 0,1} :", "title": "Mathematics" }, { "paragraph_id": 47, "text": "The sequence of Lucas numbers (not to be confused with the generalized Lucas sequences, of which this is part) is like the Fibonacci sequence, in which each term is the sum of the previous two, however instead starts with 2 , 1 {\\displaystyle 2,1} :", "title": "Mathematics" }, { "paragraph_id": 48, "text": "Exceptionally, the golden ratio is equal to the limit of the ratios of successive terms in the Fibonacci sequence and sequence of Lucas numbers:", "title": "Mathematics" }, { "paragraph_id": 49, "text": "In other words, if a Fibonacci and Lucas number is divided by its immediate predecessor in the sequence, the quotient approximates φ {\\displaystyle \\varphi } .", "title": "Mathematics" }, { "paragraph_id": 50, "text": "For example, F 16 F 15 = 987 610 = 1.6180327 … , {\\displaystyle {\\frac {F_{16}}{F_{15}}}={\\frac {987}{610}}=1.6180327\\ldots ,} and L 16 L 15 = 2207 1364 = 1.6180351 … . {\\displaystyle {\\frac {L_{16}}{L_{15}}}={\\frac {2207}{1364}}=1.6180351\\ldots .}", "title": "Mathematics" }, { "paragraph_id": 51, "text": "These approximations are alternately lower and higher than φ , {\\displaystyle \\varphi ,} and converge to φ {\\displaystyle \\varphi } as the Fibonacci and Lucas numbers increase.", "title": "Mathematics" }, { "paragraph_id": 52, "text": "Closed-form expressions for the Fibonacci and Lucas sequences that involve the golden ratio are:", "title": "Mathematics" }, { "paragraph_id": 53, "text": "Combining both formulas above, one obtains a formula for φ n {\\displaystyle \\varphi ^{n}} that involves both Fibonacci and Lucas numbers:", "title": "Mathematics" }, { "paragraph_id": 54, "text": "Between Fibonacci and Lucas numbers one can deduce L 2 n = 5 F n 2 + 2 ( − 1 ) n = L n 2 − 2 ( − 1 ) n , {\\displaystyle L_{2n}=5F_{n}^{2}+2(-1)^{n}=L_{n}^{2}-2(-1)^{n},} which simplifies to express the limit of the quotient of Lucas numbers by Fibonacci numbers as equal to the square root of five:", "title": "Mathematics" }, { "paragraph_id": 55, "text": "Indeed, much stronger statements are true:", "title": "Mathematics" }, { "paragraph_id": 56, "text": "These values describe φ {\\displaystyle \\varphi } as a fundamental unit of the algebraic number field Q ( 5 ) {\\displaystyle \\mathbb {Q} ({\\sqrt {5}})} .", "title": "Mathematics" }, { "paragraph_id": 57, "text": "Successive powers of the golden ratio obey the Fibonacci recurrence, i.e. φ n + 1 = φ n + φ n − 1 . {\\displaystyle \\varphi ^{n+1}=\\varphi ^{n}+\\varphi ^{n-1}.}", "title": "Mathematics" }, { "paragraph_id": 58, "text": "The reduction to a linear expression can be accomplished in one step by using:", "title": "Mathematics" }, { "paragraph_id": 59, "text": "This identity allows any polynomial in φ {\\displaystyle \\varphi } to be reduced to a linear expression, as in:", "title": "Mathematics" }, { "paragraph_id": 60, "text": "Consecutive Fibonacci numbers can also be used to obtain a similar formula for the golden ratio, here by infinite summation:", "title": "Mathematics" }, { "paragraph_id": 61, "text": "In particular, the powers of φ {\\displaystyle \\varphi } themselves round to Lucas numbers (in order, except for the first two powers, φ 0 {\\displaystyle \\varphi ^{0}} and φ {\\displaystyle \\varphi } , are in reverse order):", "title": "Mathematics" }, { "paragraph_id": 62, "text": "and so forth. The Lucas numbers also directly generate powers of the golden ratio; for n ≥ 2 {\\displaystyle n\\geq 2} :", "title": "Mathematics" }, { "paragraph_id": 63, "text": "Rooted in their interconnecting relationship with the golden ratio is the notion that the sum of third consecutive Fibonacci numbers equals a Lucas number, that is L n = F n − 1 + F n + 1 {\\displaystyle L_{n}=F_{n-1}+F_{n+1}} ; and, importantly, that L n = F 2 n F n {\\displaystyle L_{n}={\\frac {F_{2n}}{F_{n}}}} .", "title": "Mathematics" }, { "paragraph_id": 64, "text": "Both the Fibonacci sequence and the sequence of Lucas numbers can be used to generate approximate forms of the golden spiral (which is a special form of a logarithmic spiral) using quarter-circles with radii from these sequences, differing only slightly from the true golden logarithmic spiral. Fibonacci spiral is generally the term used for spirals that approximate golden spirals using Fibonacci number-sequenced squares and quarter-circles.", "title": "Mathematics" }, { "paragraph_id": 65, "text": "The golden ratio features prominently in geometry. For example, it is intrinsically involved in the internal symmetry of the pentagon, and extends to form part of the coordinates of the vertices of a regular dodecahedron, as well as those of a 5-cell. It features in the Kepler triangle and Penrose tilings too, as well as in various other polytopes.", "title": "Mathematics" }, { "paragraph_id": 66, "text": "Dividing by interior division", "title": "Mathematics" }, { "paragraph_id": 67, "text": "Dividing by exterior division", "title": "Mathematics" }, { "paragraph_id": 68, "text": "Application examples you can see in the articles Pentagon with a given side length, Decagon with given circumcircle and Decagon with a given side length.", "title": "Mathematics" }, { "paragraph_id": 69, "text": "Both of the above displayed different algorithms produce geometric constructions that determine two aligned line segments where the ratio of the longer one to the shorter one is the golden ratio.", "title": "Mathematics" }, { "paragraph_id": 70, "text": "When two angles that make a full circle have measures in the golden ratio, the smaller is called the golden angle, with measure g : {\\textstyle g\\colon }", "title": "Mathematics" }, { "paragraph_id": 71, "text": "This angle occurs in patterns of plant growth as the optimal spacing of leaf shoots around plant stems so that successive leaves do not block sunlight from the leaves below them.", "title": "Mathematics" }, { "paragraph_id": 72, "text": "In a regular pentagon the ratio of a diagonal to a side is the golden ratio, while intersecting diagonals section each other in the golden ratio. The golden ratio properties of a regular pentagon can be confirmed by applying Ptolemy's theorem to the quadrilateral formed by removing one of its vertices. If the quadrilateral's long edge and diagonals are a , {\\displaystyle a,} and short edges are b , {\\displaystyle b,} then Ptolemy's theorem gives a 2 = b 2 + a b . {\\displaystyle a^{2}=b^{2}+ab.} Dividing both sides by a b {\\displaystyle ab} yields (see § Calculation above),", "title": "Mathematics" }, { "paragraph_id": 73, "text": "The diagonal segments of a pentagon form a pentagram, or five-pointed star polygon, whose geometry is quintessentially described by φ {\\displaystyle \\varphi } . Primarily, each intersection of edges sections other edges in the golden ratio. The ratio of the length of the shorter segment to the segment bounded by the two intersecting edges (that is, a side of the inverted pentagon in the pentagram's center) is φ , {\\displaystyle \\varphi ,} as the four-color illustration shows.", "title": "Mathematics" }, { "paragraph_id": 74, "text": "Pentagonal and pentagrammic geometry permits us to calculate the following values for φ {\\displaystyle \\varphi } :", "title": "Mathematics" }, { "paragraph_id": 75, "text": "The triangle formed by two diagonals and a side of a regular pentagon is called a golden triangle or sublime triangle. It is an acute isosceles triangle with apex angle 36° and base angles 72°. Its two equal sides are in the golden ratio to its base. The triangle formed by two sides and a diagonal of a regular pentagon is called a golden gnomon. It is an obtuse isosceles triangle with apex angle 108° and base angle 36°. Its base is in the golden ratio to its two equal sides. The pentagon can thus be subdivided into two golden gnomons and a central golden triangle. The five points of a regular pentagram are golden triangles, as are the ten triangles formed by connecting the vertices of a regular decagon to its center point.", "title": "Mathematics" }, { "paragraph_id": 76, "text": "Bisecting one of the base angles of the golden triangle subdivides it into a smaller golden triangle and a golden gnomon. Analogously, any acute isosceles triangle can be subdivided into a similar triangle and an obtuse isosceles triangle, but the golden triangle is the only one for which this subdivision is made by the angle bisector, because it is the only isosceles triangle whose base angle is twice its apex angle. The angle bisector of the golden triangle subdivides the side that it meets in the golden ratio, and the areas of the two subdivided pieces are also in the golden ratio.", "title": "Mathematics" }, { "paragraph_id": 77, "text": "If the apex angle of the golden gnomon is trisected, the trisector again subdivides it into a smaller golden gnomon and a golden triangle. The trisector subdivides the base in the golden ratio, and the two pieces have areas in the golden ratio. Analogously, any obtuse triangle can be subdivided into a similar triangle and an acute isosceles triangle, but the golden gnomon is the only one for which this subdivision is made by the angle trisector, because it is the only isosceles triangle whose apex angle is three times its base angle.", "title": "Mathematics" }, { "paragraph_id": 78, "text": "The golden ratio appears prominently in the Penrose tiling, a family of aperiodic tilings of the plane developed by Roger Penrose, inspired by Johannes Kepler's remark that pentagrams, decagons, and other shapes could fill gaps that pentagonal shapes alone leave when tiled together. Several variations of this tiling have been studied, all of whose prototiles exhibit the golden ratio:", "title": "Mathematics" }, { "paragraph_id": 79, "text": "George Odom found a construction for φ {\\displaystyle \\varphi } involving an equilateral triangle: if the line segment joining the midpoints of two sides is extended to intersect the circumcircle, then the two midpoints and the point of intersection with the circle are in golden proportion.", "title": "Mathematics" }, { "paragraph_id": 80, "text": "The Kepler triangle, named after Johannes Kepler, is the unique right triangle with sides in geometric progression:", "title": "Mathematics" }, { "paragraph_id": 81, "text": "These side lengths are the three Pythagorean means of the two numbers φ ± 1 {\\displaystyle \\varphi \\pm 1} . The three squares on its sides have areas in the golden geometric progression 1 : φ : φ 2 {\\displaystyle 1\\mathbin {:} \\varphi \\mathbin {:} \\varphi ^{2}} .", "title": "Mathematics" }, { "paragraph_id": 82, "text": "Among isosceles triangles, the ratio of inradius to side length is maximized for the triangle formed by two reflected copies of the Kepler triangle, sharing the longer of their two legs. The same isosceles triangle maximizes the ratio of the radius of a semicircle on its base to its perimeter.", "title": "Mathematics" }, { "paragraph_id": 83, "text": "For a Kepler triangle with smallest side length s {\\displaystyle s} , the area and acute internal angles are:", "title": "Mathematics" }, { "paragraph_id": 84, "text": "The golden ratio proportions the adjacent side lengths of a golden rectangle in 1 : φ {\\displaystyle 1:\\varphi } ratio. Stacking golden rectangles produces golden rectangles anew, and removing or adding squares from golden rectangles leaves rectangles still proportioned in φ {\\displaystyle \\varphi } ratio. They can be generated by golden spirals, through successive Fibonacci and Lucas number-sized squares and quarter circles. They feature prominently in the icosahedron as well as in the dodecahedron (see section below for more detail).", "title": "Mathematics" }, { "paragraph_id": 85, "text": "A golden rhombus is a rhombus whose diagonals are in proportion to the golden ratio, most commonly 1 : φ {\\displaystyle 1:\\varphi } . For a rhombus of such proportions, its acute angle and obtuse angles are:", "title": "Mathematics" }, { "paragraph_id": 86, "text": "The lengths of its short and long diagonals d {\\displaystyle d} and D {\\displaystyle D} , in terms of side length a {\\displaystyle a} are:", "title": "Mathematics" }, { "paragraph_id": 87, "text": "Its area, in terms of a {\\displaystyle a} ,and d {\\displaystyle d} :", "title": "Mathematics" }, { "paragraph_id": 88, "text": "Its inradius, in terms of side a {\\displaystyle a} :", "title": "Mathematics" }, { "paragraph_id": 89, "text": "Golden rhombi form the faces of the rhombic triacontahedron, the two golden rhombohedra, the Bilinski dodecahedron, and the rhombic hexecontahedron.", "title": "Mathematics" }, { "paragraph_id": 90, "text": "Logarithmic spirals are self-similar spirals where distances covered per turn are in geometric progression. A logarithmic spiral whose radius increases by a factor of the golden ratio for each quarter-turn is called the golden spiral. These spirals can be approximated by quarter-circles that grow by the golden ratio, or their approximations generated from Fibonacci numbers, often depicted inscribed within a spiraling pattern of squares growing in the same ratio. The exact logarithmic spiral form of the golden spiral can be described by the polar equation with ( r , θ ) {\\displaystyle (r,\\theta )} :", "title": "Mathematics" }, { "paragraph_id": 91, "text": "Not all logarithmic spirals are connected to the golden ratio, and not all spirals that are connected to the golden ratio are the same shape as the golden spiral. For instance, a different logarithmic spiral, encasing a nested sequence of golden isosceles triangles, grows by the golden ratio for each 108° that it turns, instead of the 90° turning angle of the golden spiral. Another variation, called the \"better golden spiral\", grows by the golden ratio for each half-turn, rather than each quarter-turn.", "title": "Mathematics" }, { "paragraph_id": 92, "text": "The regular dodecahedron and its dual polyhedron the icosahedron are Platonic solids whose dimensions are related to the golden ratio. An icosahedron is made of 12 {\\displaystyle 12} regular pentagonal faces, whereas the icosahedron is made of 20 {\\displaystyle 20} equilateral triangles; both with 30 {\\displaystyle 30} edges.", "title": "Mathematics" }, { "paragraph_id": 93, "text": "For a dodecahedron of side a {\\displaystyle a} , the radius of a circumscribed and inscribed sphere, and midradius are ( r u , {\\displaystyle r_{u},} r i , {\\displaystyle r_{i},} and r m , {\\displaystyle r_{m},} respectively):", "title": "Mathematics" }, { "paragraph_id": 94, "text": "While for an icosahedron of side a {\\displaystyle a} , the radius of a circumscribed and inscribed sphere, and midradius are:", "title": "Mathematics" }, { "paragraph_id": 95, "text": "The volume and surface area of the dodecahedron can be expressed in terms of φ {\\displaystyle \\varphi } :", "title": "Mathematics" }, { "paragraph_id": 96, "text": "As well as for the icosahedron:", "title": "Mathematics" }, { "paragraph_id": 97, "text": "These geometric values can be calculated from their Cartesian coordinates, which also can be given using formulas involving φ {\\displaystyle \\varphi } . The coordinates of the dodecahedron are displayed on the figure above, while those of the icosahedron are the cyclic permutations of:", "title": "Mathematics" }, { "paragraph_id": 98, "text": "Sets of three golden rectangles intersect perpendicularly inside dodecahedra and icosahedra, forming Borromean rings. In dodecahedra, pairs of opposing vertices in golden rectangles meet the centers of pentagonal faces, and in icosahedra, they meet at its vertices. In all, the three golden rectangles contain 12 {\\displaystyle 12} vertices of the icosahedron, or equivalently, intersect the centers of 12 {\\displaystyle 12} of the dodecahedron's faces.", "title": "Mathematics" }, { "paragraph_id": 99, "text": "A cube can be inscribed in a regular dodecahedron, with some of the diagonals of the pentagonal faces of the dodecahedron serving as the cube's edges; therefore, the edge lengths are in the golden ratio. The cube's volume is 2 2 + φ {\\displaystyle {\\tfrac {2}{2+\\varphi }}} times that of the dodecahedron's. In fact, golden rectangles inside a dodecahedron are in golden proportions to an inscribed cube, such that edges of a cube and the long edges of a golden rectangle are themselves in φ : φ 2 {\\displaystyle \\varphi :\\varphi ^{2}} ratio. On the other hand, the octahedron, which is the dual polyhedron of the cube, can inscribe an icosahedron, such that an icosahedron's 12 {\\displaystyle 12} vertices touch the 12 {\\displaystyle 12} edges of an octahedron at points that divide its edges in golden ratio.", "title": "Mathematics" }, { "paragraph_id": 100, "text": "Other polyhedra are related to the dodecahedron and icosahedron or their symmetries, and therefore have corresponding relations to the golden ratio. These include the compound of five cubes, compound of five octahedra, compound of five tetrahedra, the compound of ten tetrahedra, rhombic triacontahedron, icosidodecahedron, truncated icosahedron, truncated dodecahedron, and rhombicosidodecahedron, rhombic enneacontahedron, and Kepler-Poinsot polyhedra, and rhombic hexecontahedron. In four dimensions, the dodecahedron and icosahedron appear as faces of the 120-cell and 600-cell, which again have dimensions related to the golden ratio.", "title": "Mathematics" }, { "paragraph_id": 101, "text": "The golden ratio's decimal expansion can be calculated via root-finding methods, such as Newton's method or Halley's method, on the equation x 2 − x − 1 = 0 {\\displaystyle x^{2}-x-1=0} or on x 2 − 5 = 0 {\\displaystyle x^{2}-5=0} (to compute 5 {\\displaystyle {\\sqrt {5}}} first). The time needed to compute n {\\displaystyle n} digits of the golden ratio using Newton's method is essentially O ( M ( n ) ) {\\displaystyle O(M(n))} , where M ( n ) {\\displaystyle M(n)} is the time complexity of multiplying two n {\\displaystyle n} -digit numbers. This is considerably faster than known algorithms for π {\\displaystyle \\pi } and e {\\displaystyle e} . An easily programmed alternative using only integer arithmetic is to calculate two large consecutive Fibonacci numbers and divide them. The ratio of Fibonacci numbers F 25001 {\\displaystyle F_{25001}} and F 25000 , {\\displaystyle F_{25000},} each over 5000 {\\displaystyle 5000} digits, yields over 10,000 {\\displaystyle 10{,}000} significant digits of the golden ratio. The decimal expansion of the golden ratio φ {\\displaystyle \\varphi } has been calculated to an accuracy of ten trillion ( 1 × 10 13 = 10,000,000,000,000 {\\displaystyle 1\\times 10^{13}=10{,}000{,}000{,}000{,}000} ) digits.", "title": "Mathematics" }, { "paragraph_id": 102, "text": "In the complex plane, the fifth roots of unity z = e 2 π k i / 5 {\\displaystyle z=e^{2\\pi ki/5}} (for an integer k {\\textstyle k} ) satisfying z 5 = 1 {\\displaystyle z^{5}=1} are the vertices of a pentagon. They do not form a ring of quadratic integers, however the sum of any fifth root of unity and its complex conjugate, z + z ¯ , {\\displaystyle z+{\\bar {z}},} is a quadratic integer, an element of Z [ φ ] . {\\textstyle \\mathbb {Z} [\\varphi ].} Specifically,", "title": "Mathematics" }, { "paragraph_id": 103, "text": "This also holds for the remaining tenth roots of unity satisfying z 10 = 1 , {\\displaystyle z^{10}=1,}", "title": "Mathematics" }, { "paragraph_id": 104, "text": "For the gamma function Γ {\\displaystyle \\Gamma } , the only solutions to the equation Γ ( z − 1 ) = Γ ( z + 1 ) {\\displaystyle \\Gamma (z-1)=\\Gamma (z+1)} are z = φ {\\displaystyle z=\\varphi } and z = − φ − 1 {\\displaystyle z=-\\varphi ^{-1}} .", "title": "Mathematics" }, { "paragraph_id": 105, "text": "When the golden ratio is used as the base of a numeral system (see golden ratio base, sometimes dubbed phinary or φ {\\displaystyle \\varphi } -nary), quadratic integers in the ring Z [ φ ] {\\displaystyle \\mathbb {Z} [\\varphi ]} – that is, numbers of the form a + b φ {\\displaystyle a+b\\varphi } for a , b ∈ Z {\\displaystyle a,b\\in \\mathbb {Z} } – have terminating representations, but rational fractions have non-terminating representations.", "title": "Mathematics" }, { "paragraph_id": 106, "text": "The golden ratio also appears in hyperbolic geometry, as the maximum distance from a point on one side of an ideal triangle to the closer of the other two sides: this distance, the side length of the equilateral triangle formed by the points of tangency of a circle inscribed within the ideal triangle, is 4 log ( φ ) . {\\displaystyle 4\\log(\\varphi ).}", "title": "Mathematics" }, { "paragraph_id": 107, "text": "The golden ratio appears in the theory of modular functions as well. For | q | < 1 {\\displaystyle \\left|q\\right|<1} , let", "title": "Mathematics" }, { "paragraph_id": 108, "text": "Then", "title": "Mathematics" }, { "paragraph_id": 109, "text": "and", "title": "Mathematics" }, { "paragraph_id": 110, "text": "where Im τ > 0 {\\displaystyle \\operatorname {Im} \\tau >0} and ( e z ) 1 / 5 {\\displaystyle (e^{z})^{1/5}} in the continued fraction should be evaluated as e z / 5 {\\displaystyle e^{z/5}} . The function τ ↦ R ( e 2 π i τ ) {\\displaystyle \\tau \\mapsto R(e^{2\\pi i\\tau })} is invariant under Γ ( 5 ) {\\displaystyle \\Gamma (5)} , a congruence subgroup of the modular group. Also for positive real numbers a , b ∈ R + {\\displaystyle a,b\\in \\mathbb {R} ^{+}} and a b = π 2 , {\\displaystyle ab=\\pi ^{2},} then", "title": "Mathematics" }, { "paragraph_id": 111, "text": "φ {\\displaystyle \\varphi } is a Pisot–Vijayaraghavan number.", "title": "Mathematics" }, { "paragraph_id": 112, "text": "The Swiss architect Le Corbusier, famous for his contributions to the modern international style, centered his design philosophy on systems of harmony and proportion. Le Corbusier's faith in the mathematical order of the universe was closely bound to the golden ratio and the Fibonacci series, which he described as \"rhythms apparent to the eye and clear in their relations with one another. And these rhythms are at the very root of human activities. They resound in man by an organic inevitability, the same fine inevitability which causes the tracing out of the Golden Section by children, old men, savages and the learned.\"", "title": "Applications and observations" }, { "paragraph_id": 113, "text": "Le Corbusier explicitly used the golden ratio in his Modulor system for the scale of architectural proportion. He saw this system as a continuation of the long tradition of Vitruvius, Leonardo da Vinci's \"Vitruvian Man\", the work of Leon Battista Alberti, and others who used the proportions of the human body to improve the appearance and function of architecture.", "title": "Applications and observations" }, { "paragraph_id": 114, "text": "In addition to the golden ratio, Le Corbusier based the system on human measurements, Fibonacci numbers, and the double unit. He took suggestion of the golden ratio in human proportions to an extreme: he sectioned his model human body's height at the navel with the two sections in golden ratio, then subdivided those sections in golden ratio at the knees and throat; he used these golden ratio proportions in the Modulor system. Le Corbusier's 1927 Villa Stein in Garches exemplified the Modulor system's application. The villa's rectangular ground plan, elevation, and inner structure closely approximate golden rectangles.", "title": "Applications and observations" }, { "paragraph_id": 115, "text": "Another Swiss architect, Mario Botta, bases many of his designs on geometric figures. Several private houses he designed in Switzerland are composed of squares and circles, cubes and cylinders. In a house he designed in Origlio, the golden ratio is the proportion between the central section and the side sections of the house.", "title": "Applications and observations" }, { "paragraph_id": 116, "text": "Leonardo da Vinci's illustrations of polyhedra in Pacioli's Divina proportione have led some to speculate that he incorporated the golden ratio in his paintings. But the suggestion that his Mona Lisa, for example, employs golden ratio proportions, is not supported by Leonardo's own writings. Similarly, although Leonardo's Vitruvian Man is often shown in connection with the golden ratio, the proportions of the figure do not actually match it, and the text only mentions whole number ratios.", "title": "Applications and observations" }, { "paragraph_id": 117, "text": "Salvador Dalí, influenced by the works of Matila Ghyka, explicitly used the golden ratio in his masterpiece, The Sacrament of the Last Supper. The dimensions of the canvas are a golden rectangle. A huge dodecahedron, in perspective so that edges appear in golden ratio to one another, is suspended above and behind Jesus and dominates the composition.", "title": "Applications and observations" }, { "paragraph_id": 118, "text": "A statistical study on 565 works of art of different great painters, performed in 1999, found that these artists had not used the golden ratio in the size of their canvases. The study concluded that the average ratio of the two sides of the paintings studied is 1.34 , {\\displaystyle 1.34,} with averages for individual artists ranging from 1.04 {\\displaystyle 1.04} (Goya) to 1.46 {\\displaystyle 1.46} (Bellini). On the other hand, Pablo Tosto listed over 350 works by well-known artists, including more than 100 which have canvasses with golden rectangle and 5 {\\displaystyle {\\sqrt {5}}} proportions, and others with proportions like 2 , {\\displaystyle {\\sqrt {2}},} 3 , {\\displaystyle 3,} 4 , {\\displaystyle 4,} and 6. {\\displaystyle 6.}", "title": "Applications and observations" }, { "paragraph_id": 119, "text": "According to Jan Tschichold,", "title": "Applications and observations" }, { "paragraph_id": 120, "text": "There was a time when deviations from the truly beautiful page proportions 2 : 3 , {\\displaystyle 2\\mathbin {:} 3,} 1 : 3 , {\\displaystyle 1\\mathbin {:} {\\sqrt {3}},} and the Golden Section were rare. Many books produced between 1550 and 1770 show these proportions exactly, to within half a millimeter.", "title": "Applications and observations" }, { "paragraph_id": 121, "text": "According to some sources, the golden ratio is used in everyday design, for example in the proportions of playing cards, postcards, posters, light switch plates, and widescreen televisions.", "title": "Applications and observations" }, { "paragraph_id": 122, "text": "The aspect ratio (width to height ratio) of the flag of Togo was intended to be the golden ratio, according to its designer.", "title": "Applications and observations" }, { "paragraph_id": 123, "text": "Ernő Lendvai analyzes Béla Bartók's works as being based on two opposing systems, that of the golden ratio and the acoustic scale, though other music scholars reject that analysis. French composer Erik Satie used the golden ratio in several of his pieces, including Sonneries de la Rose+Croix. The golden ratio is also apparent in the organization of the sections in the music of Debussy's Reflets dans l'eau (Reflections in Water), from Images (1st series, 1905), in which \"the sequence of keys is marked out by the intervals 34, 21, 13 and 8, and the main climax sits at the phi position\".", "title": "Applications and observations" }, { "paragraph_id": 124, "text": "The musicologist Roy Howat has observed that the formal boundaries of Debussy's La Mer correspond exactly to the golden section. Trezise finds the intrinsic evidence \"remarkable\", but cautions that no written or reported evidence suggests that Debussy consciously sought such proportions.", "title": "Applications and observations" }, { "paragraph_id": 125, "text": "Music theorists including Hans Zender and Heinz Bohlen have experimented with the 833 cents scale, a musical scale based on using the golden ratio as its fundamental musical interval. When measured in cents, a logarithmic scale for musical intervals, the golden ratio is approximately 833.09 cents.", "title": "Applications and observations" }, { "paragraph_id": 126, "text": "Johannes Kepler wrote that \"the image of man and woman stems from the divine proportion. In my opinion, the propagation of plants and the progenitive acts of animals are in the same ratio\".", "title": "Applications and observations" }, { "paragraph_id": 127, "text": "The psychologist Adolf Zeising noted that the golden ratio appeared in phyllotaxis and argued from these patterns in nature that the golden ratio was a universal law. Zeising wrote in 1854 of a universal orthogenetic law of \"striving for beauty and completeness in the realms of both nature and art\".", "title": "Applications and observations" }, { "paragraph_id": 128, "text": "However, some have argued that many apparent manifestations of the golden ratio in nature, especially in regard to animal dimensions, are fictitious.", "title": "Applications and observations" }, { "paragraph_id": 129, "text": "The quasi-one-dimensional Ising ferromagnet CoNb 2 O 6 {\\textstyle {\\ce {CoNb2O6}}} (cobalt niobate) has 8 predicted excitation states (with E8 symmetry), that when probed with neutron scattering, showed its lowest two were in golden ratio. Specifically, these quantum phase transitions during spin excitation, which occur at near absolute zero temperature, showed pairs of kinks in its ordered-phase to spin-flips in its paramagnetic phase; revealing, just below its critical field, a spin dynamics with sharp modes at low energies approaching the golden mean.", "title": "Applications and observations" }, { "paragraph_id": 130, "text": "There is no known general algorithm to arrange a given number of nodes evenly on a sphere, for any of several definitions of even distribution (see, for example, Thomson problem or Tammes problem). However, a useful approximation results from dividing the sphere into parallel bands of equal surface area and placing one node in each band at longitudes spaced by a golden section of the circle, i.e. 360 ∘ / φ ≈ 222.5 ∘ . {\\displaystyle 360^{\\circ }/\\varphi \\approx 222.5^{\\circ }.} This method was used to arrange the 1500 mirrors of the student-participatory satellite Starshine-3.", "title": "Applications and observations" }, { "paragraph_id": 131, "text": "The golden ratio is a critical element to golden-section search as well.", "title": "Applications and observations" }, { "paragraph_id": 132, "text": "Examples of disputed observations of the golden ratio include the following:", "title": "Disputed observations" }, { "paragraph_id": 133, "text": "The Great Pyramid of Giza (also known as the Pyramid of Cheops or Khufu) has been analyzed by pyramidologists as having a doubled Kepler triangle as its cross-section. If this theory were true, the golden ratio would describe the ratio of distances from the midpoint of one of the sides of the pyramid to its apex, and from the same midpoint to the center of the pyramid's base. However, imprecision in measurement caused in part by the removal of the outer surface of the pyramid makes it impossible to distinguish this theory from other numerical theories of the proportions of the pyramid, based on pi or on whole-number ratios. The consensus of modern scholars is that this pyramid's proportions are not based on the golden ratio, because such a basis would be inconsistent both with what is known about Egyptian mathematics from the time of construction of the pyramid, and with Egyptian theories of architecture and proportion used in their other works.", "title": "Disputed observations" }, { "paragraph_id": 134, "text": "The Parthenon's façade (c. 432 BC) as well as elements of its façade and elsewhere are said by some to be circumscribed by golden rectangles. Other scholars deny that the Greeks had any aesthetic association with golden ratio. For example, Keith Devlin says, \"Certainly, the oft repeated assertion that the Parthenon in Athens is based on the golden ratio is not supported by actual measurements. In fact, the entire story about the Greeks and golden ratio seems to be without foundation.\" Midhat J. Gazalé affirms that \"It was not until Euclid ... that the golden ratio's mathematical properties were studied.\"", "title": "Disputed observations" }, { "paragraph_id": 135, "text": "From measurements of 15 temples, 18 monumental tombs, 8 sarcophagi, and 58 grave stelae from the fifth century BC to the second century AD, one researcher concluded that the golden ratio was totally absent from Greek architecture of the classical fifth century BC, and almost absent during the following six centuries. Later sources like Vitruvius (first century BC) exclusively discuss proportions that can be expressed in whole numbers, i.e. commensurate as opposed to irrational proportions.", "title": "Disputed observations" }, { "paragraph_id": 136, "text": "The Section d'Or ('Golden Section') was a collective of painters, sculptors, poets and critics associated with Cubism and Orphism. Active from 1911 to around 1914, they adopted the name both to highlight that Cubism represented the continuation of a grand tradition, rather than being an isolated movement, and in homage to the mathematical harmony associated with Georges Seurat. (Several authors have claimed that Seurat employed the golden ratio in his paintings, but Seurat’s writings and paintings suggest that he employed simple whole-number ratios and any approximation of the golden ratio was coincidental.) The Cubists observed in its harmonies, geometric structuring of motion and form, \"the primacy of idea over nature\", \"an absolute scientific clarity of conception\". However, despite this general interest in mathematical harmony, whether the paintings featured in the celebrated 1912 Salon de la Section d'Or exhibition used the golden ratio in any compositions is more difficult to determine. Livio, for example, claims that they did not, and Marcel Duchamp said as much in an interview. On the other hand, an analysis suggests that Juan Gris made use of the golden ratio in composing works that were likely, but not definitively, shown at the exhibition. Art historian Daniel Robbins has argued that in addition to referencing the mathematical term, the exhibition's name also refers to the earlier Bandeaux d'Or group, with which Albert Gleizes and other former members of the Abbaye de Créteil had been involved.", "title": "Disputed observations" }, { "paragraph_id": 137, "text": "Piet Mondrian has been said to have used the golden section extensively in his geometrical paintings, though other experts (including critic Yve-Alain Bois) have discredited these claims.", "title": "Disputed observations" }, { "paragraph_id": 138, "text": "Clason, Robert G (1994). \"A family of golden triangle tile patterns\". The Mathematical Gazette. 78 (482): 130–148. doi:10.2307/3618569. JSTOR 3618569. S2CID 126206189.", "title": "References" }, { "paragraph_id": 139, "text": "Johnson, Art (1999). Famous problems and their mathematicians. Teacher Ideas Press. p. 45. ISBN 9781563084461. The Golden Ratio is a standard feature of many modern designs, from postcards and credit cards to posters and light-switch plates.", "title": "References" }, { "paragraph_id": 140, "text": "Stakhov, Alexey P.; Olsen, Scott (2009). \"§1.4.1 A Golden Rectangle with a Side Ratio of τ\". The Mathematics of Harmony: From Euclid to Contemporary Mathematics and Computer Science. World Scientific. pp. 20–21. A credit card has a form of the golden rectangle", "title": "References" }, { "paragraph_id": 141, "text": "Cox, Simon (2004). Cracking the Da Vinci Code. Barnes & Noble. p. 62. The Golden Ratio also crops up in some very unlikely places: widescreen televisions, postcards, credit cards and photographs all commonly conform to its proportions.", "title": "References" }, { "paragraph_id": 142, "text": "Hasegawa, Robert (2011). \"Gegenstrebige Harmonik in the Music of Hans Zender\". Perspectives of New Music. Project Muse. 49 (1): 207–234. doi:10.1353/pnm.2011.0000. JSTOR 10.7757/persnewmusi.49.1.0207.", "title": "References" }, { "paragraph_id": 143, "text": "Smethurst, Reilly (2016). \"Two Non-Octave Tunings by Heinz Bohlen: A Practical Proposal\". In Torrence, Eve; et al. (eds.). Proceedings of Bridges 2016. Jyväskylä, Finland. Tessellations Publishing. pp. 519–522.", "title": "References" }, { "paragraph_id": 144, "text": "Padovan, Richard (2002). \"Proportion: Science, Philosophy, Architecture\". Nexus Network Journal. 4 (1): 113–122. doi:10.1007/s00004-001-0008-7.", "title": "References" }, { "paragraph_id": 145, "text": "Rossi, Corinna (2004). Architecture and Mathematics in Ancient Egypt. Cambridge University Press. pp. 67–68. there is no direct evidence in any ancient Egyptian written mathematical source of any arithmetic calculation or geometrical construction which could be classified as the Golden Section ... convergence to φ {\\displaystyle \\varphi } , and φ {\\displaystyle \\varphi } itself as a number, do not fit with the extant Middle Kingdom mathematical sources; see also extensive discussion of multiple alternative theories for the shape of the pyramid and other Egyptian architecture, pp. 7–56", "title": "References" }, { "paragraph_id": 146, "text": "Rossi, Corinna; Tout, Christopher A. (2002). \"Were the Fibonacci series and the Golden Section known in ancient Egypt?\". Historia Mathematica. 29 (2): 101–113. doi:10.1006/hmat.2001.2334. hdl:11311/997099.", "title": "References" }, { "paragraph_id": 147, "text": "Markowsky, George (1992). \"Misconceptions about the Golden Ratio\" (PDF). The College Mathematics Journal. Mathematical Association of America. 23 (1): 2–19. doi:10.2307/2686193. JSTOR 2686193. Retrieved 2012-06-29. It does not appear that the Egyptians even knew of the existence of φ {\\displaystyle \\varphi } much less incorporated it in their buildings", "title": "References" }, { "paragraph_id": 148, "text": "Cottington, David (2004). Cubism and Its Histories. Manchester University Press. p. 112, 142.", "title": "References" } ]
In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. Expressed algebraically, for quantities a and b with a > b > 0 , where the Greek letter phi denotes the golden ratio. The constant φ satisfies the quadratic equation φ 2 = φ + 1 and is an irrational number with a value of The golden ratio was called the extreme and mean ratio by Euclid, and the divine proportion by Luca Pacioli, and also goes by several other names. Mathematicians have studied the golden ratio's properties since antiquity. It is the ratio of a regular pentagon's diagonal to its side and thus appears in the construction of the dodecahedron and icosahedron. A golden rectangle—that is, a rectangle with an aspect ratio of φ —may be cut into a square and a smaller rectangle with the same aspect ratio. The golden ratio has been used to analyze the proportions of natural objects and artificial systems such as financial markets, in some cases based on dubious fits to data. The golden ratio appears in some patterns in nature, including the spiral arrangement of leaves and other parts of vegetation. Some 20th-century artists and architects, including Le Corbusier and Salvador Dalí, have proportioned their works to approximate the golden ratio, believing it to be aesthetically pleasing. These uses often appear in the form of a golden rectangle.
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2023-12-27T17:17:06Z
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https://en.wikipedia.org/wiki/Golden_ratio
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Genome
In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding genes, other functional regions of the genome such as regulatory sequences (see non-coding DNA), and often a substantial fraction of junk DNA with no evident function. Almost all eukaryotes have mitochondria and a small mitochondrial genome. Algae and plants also contain chloroplasts with a chloroplast genome. The study of the genome is called genomics. The genomes of many organisms have been sequenced and various regions have been annotated. The Human Genome Project was started in October 1990, and then reported the sequence of the human genome in April 2003, although the initial "finished" sequence was missing 8% of the genome consisting mostly of repetitive sequences. With advancements in technology that could handle sequencing of the many repetitive sequences found in human DNA that were not fully uncovered by the original Human Genome Project study, scientists reported the first end-to-end human genome sequence in March 2022. The term genome was created in 1920 by Hans Winkler, professor of botany at the University of Hamburg, Germany. The website Oxford Dictionaries and the Online Etymology Dictionary suggest the name is a blend of the words gene and chromosome. However, see omics for a more thorough discussion. A few related -ome words already existed, such as biome and rhizome, forming a vocabulary into which genome fits systematically. It's very difficult to come up with a precise definition of "genome." It usually refers to the DNA (or sometimes RNA) molecules that carry the genetic information in an organism but sometimes it is difficult to decide which molecules to include in the definition; for example, bacteria usually have one or two large DNA molecules (chromosomes) that contain all of the essential genetic material but they also contain smaller extrachromosomal plasmid molecules that carry important genetic information. The definition of 'genome' that's commonly used in the scientific literature is usually restricted to the large chromosomal DNA molecules in bacteria. Eukaryotic genomes are even more difficult to define because almost all eukaryotic species contain nuclear chromosomes plus extra DNA molecules in the mitochondria. In addition, algae and plants have chloroplast DNA. Most textbooks make a distinction between the nuclear genome and the organelle (mitochondria and chloroplast) genomes so when they speak of, say, the human genome, they are only referring to the genetic material in the nucleus. This is the most common use of 'genome' in the scientific literature. Most eukaryotes are diploid, meaning that there are two copies of each chromosome in the nucleus but the 'genome' refers to only one copy of each chromosome. Some eukaryotes have distinctive sex chromosomes such as the X and Y chromosomes of mammals so the technical definition of the genome must include both copies of the sex chromosomes. When referring to the standard reference genome of humans, for example, it consists of one copy of each of the 22 autosomes plus one X chromosome and one Y chromosome. A genome sequence is the complete list of the nucleotides (A, C, G, and T for DNA genomes) that make up all the chromosomes of an individual or a species. Within a species, the vast majority of nucleotides are identical between individuals, but sequencing multiple individuals is necessary to understand the genetic diversity. In 1976, Walter Fiers at the University of Ghent (Belgium) was the first to establish the complete nucleotide sequence of a viral RNA-genome (Bacteriophage MS2). The next year, Fred Sanger completed the first DNA-genome sequence: Phage Φ-X174, of 5386 base pairs. The first bacterial genome to be sequenced was that of Haemophilus influenzae, completed by a team at The Institute for Genomic Research in 1995. A few months later, the first eukaryotic genome was completed, with sequences of the 16 chromosomes of budding yeast Saccharomyces cerevisiae published as the result of a European-led effort begun in the mid-1980s. The first genome sequence for an archaeon, Methanococcus jannaschii, was completed in 1996, again by The Institute for Genomic Research. The development of new technologies has made genome sequencing dramatically cheaper and easier, and the number of complete genome sequences is growing rapidly. The US National Institutes of Health maintains one of several comprehensive databases of genomic information. Among the thousands of completed genome sequencing projects include those for rice, a mouse, the plant Arabidopsis thaliana, the puffer fish, and the bacteria E. coli. In December 2013, scientists first sequenced the entire genome of a Neanderthal, an extinct species of humans. The genome was extracted from the toe bone of a 130,000-year-old Neanderthal found in a Siberian cave. New sequencing technologies, such as massive parallel sequencing have also opened up the prospect of personal genome sequencing as a diagnostic tool, as pioneered by Manteia Predictive Medicine. A major step toward that goal was the completion in 2007 of the full genome of James D. Watson, one of the co-discoverers of the structure of DNA. Whereas a genome sequence lists the order of every DNA base in a genome, a genome map identifies the landmarks. A genome map is less detailed than a genome sequence and aids in navigating around the genome. The Human Genome Project was organized to map and to sequence the human genome. A fundamental step in the project was the release of a detailed genomic map by Jean Weissenbach and his team at the Genoscope in Paris. Reference genome sequences and maps continue to be updated, removing errors and clarifying regions of high allelic complexity. The decreasing cost of genomic mapping has permitted genealogical sites to offer it as a service, to the extent that one may submit one's genome to crowdsourced scientific endeavours such as DNA.LAND at the New York Genome Center, an example both of the economies of scale and of citizen science. Viral genomes can be composed of either RNA or DNA. The genomes of RNA viruses can be either single-stranded RNA or double-stranded RNA, and may contain one or more separate RNA molecules (segments: monopartit or multipartit genome). DNA viruses can have either single-stranded or double-stranded genomes. Most DNA virus genomes are composed of a single, linear molecule of DNA, but some are made up of a circular DNA molecule. Prokaryotes and eukaryotes have DNA genomes. Archaea and most bacteria have a single circular chromosome, however, some bacterial species have linear or multiple chromosomes. If the DNA is replicated faster than the bacterial cells divide, multiple copies of the chromosome can be present in a single cell, and if the cells divide faster than the DNA can be replicated, multiple replication of the chromosome is initiated before the division occurs, allowing daughter cells to inherit complete genomes and already partially replicated chromosomes. Most prokaryotes have very little repetitive DNA in their genomes. However, some symbiotic bacteria (e.g. Serratia symbiotica) have reduced genomes and a high fraction of pseudogenes: only ~40% of their DNA encodes proteins. Some bacteria have auxiliary genetic material, also part of their genome, which is carried in plasmids. For this, the word genome should not be used as a synonym of chromosome. Eukaryotic genomes are composed of one or more linear DNA chromosomes. The number of chromosomes varies widely from Jack jumper ants and an asexual nemotode, which each have only one pair, to a fern species that has 720 pairs. It is surprising the amount of DNA that eukaryotic genomes contain compared to other genomes. The amount is even more than what is necessary for DNA protein-coding and noncoding genes due to the fact that eukaryotic genomes show as much as 64,000-fold variation in their sizes. However, this special characteristic is caused by the presence of repetitive DNA, and transposable elements (TEs). A typical human cell has two copies of each of 22 autosomes, one inherited from each parent, plus two sex chromosomes, making it diploid. Gametes, such as ova, sperm, spores, and pollen, are haploid, meaning they carry only one copy of each chromosome. In addition to the chromosomes in the nucleus, organelles such as the chloroplasts and mitochondria have their own DNA. Mitochondria are sometimes said to have their own genome often referred to as the "mitochondrial genome". The DNA found within the chloroplast may be referred to as the "plastome". Like the bacteria they originated from, mitochondria and chloroplasts have a circular chromosome. Unlike prokaryotes where exon-intron organization of protein coding genes exists but is rather exceptional, eukaryotes generally have these features in their genes and their genomes contain variable amounts of repetitive DNA. In mammals and plants, the majority of the genome is composed of repetitive DNA. Genes in eukaryotic genomes can be annotated using FINDER. High-throughput technology makes sequencing to assemble new genomes accessible to everyone. Sequence polymorphisms are typically discovered by comparing resequenced isolates to a reference, whereas analyses of coverage depth and mapping topology can provide details regarding structural variations such as chromosomal translocations and segmental duplications. DNA sequences that carry the instructions to make proteins are referred to as coding sequences. The proportion of the genome occupied by coding sequences varies widely. A larger genome does not necessarily contain more genes, and the proportion of non-repetitive DNA decreases along with increasing genome size in complex eukaryotes. Noncoding sequences include introns, sequences for non-coding RNAs, regulatory regions, and repetitive DNA. Noncoding sequences make up 98% of the human genome. There are two categories of repetitive DNA in the genome: tandem repeats and interspersed repeats. Short, non-coding sequences that are repeated head-to-tail are called tandem repeats. Microsatellites consisting of 2–5 basepair repeats, while minisatellite repeats are 30–35 bp. Tandem repeats make up about 4% of the human genome and 9% of the fruit fly genome. Tandem repeats can be functional. For example, telomeres are composed of the tandem repeat TTAGGG in mammals, and they play an important role in protecting the ends of the chromosome. In other cases, expansions in the number of tandem repeats in exons or introns can cause disease. For example, the human gene huntingtin (Htt) typically contains 6–29 tandem repeats of the nucleotides CAG (encoding a polyglutamine tract). An expansion to over 36 repeats results in Huntington's disease, a neurodegenerative disease. Twenty human disorders are known to result from similar tandem repeat expansions in various genes. The mechanism by which proteins with expanded polygulatamine tracts cause death of neurons is not fully understood. One possibility is that the proteins fail to fold properly and avoid degradation, instead accumulating in aggregates that also sequester important transcription factors, thereby altering gene expression. Tandem repeats are usually caused by slippage during replication, unequal crossing-over and gene conversion. Transposable elements (TEs) are sequences of DNA with a defined structure that are able to change their location in the genome. TEs are categorized as either as a mechanism that replicates by copy-and-paste or as a mechanism that can be excised from the genome and inserted at a new location. In the human genome, there are three important classes of TEs that make up more than 45% of the human DNA; these classes are The long interspersed nuclear elements (LINEs), The interspersed nuclear elements (SINEs), and endogenous retroviruses. These elements have a big potential to modify the genetic control in a host organism. The movement of TEs is a driving force of genome evolution in eukaryotes because their insertion can disrupt gene functions, homologous recombination between TEs can produce duplications, and TE can shuffle exons and regulatory sequences to new locations. Retrotransposons are found mostly in eukaryotes but not found in prokaryotes. Retrotransposons form a large portion of the genomes of many eukaryotes. A retrotransposon is a transposable element that transposes through an RNA intermediate. Retrotransposons are composed of DNA, but are transcribed into RNA for transposition, then the RNA transcript is copied back to DNA formation with the help of a specific enzyme called reverse transcriptase. A retrotransposon that carries reverse transcriptase in its sequence can trigger its own transposition but retrotransposons that lack a reverse transcriptase must use reverse transcriptase synthesized by another retrotransposon. Retrotransposons can be transcribed into RNA, which are then duplicated at another site into the genome. Retrotransposons can be divided into long terminal repeats (LTRs) and non-long terminal repeats (Non-LTRs). Long terminal repeats (LTRs) are derived from ancient retroviral infections, so they encode proteins related to retroviral proteins including gag (structural proteins of the virus), pol (reverse transcriptase and integrase), pro (protease), and in some cases env (envelope) genes. These genes are flanked by long repeats at both 5' and 3' ends. It has been reported that LTRs consist of the largest fraction in most plant genome and might account for the huge variation in genome size. Non-long terminal repeats (Non-LTRs) are classified as long interspersed nuclear elements (LINEs), short interspersed nuclear elements (SINEs), and Penelope-like elements (PLEs). In Dictyostelium discoideum, there is another DIRS-like elements belong to Non-LTRs. Non-LTRs are widely spread in eukaryotic genomes. Long interspersed elements (LINEs) encode genes for reverse transcriptase and endonuclease, making them autonomous transposable elements. The human genome has around 500,000 LINEs, taking around 17% of the genome. Short interspersed elements (SINEs) are usually less than 500 base pairs and are non-autonomous, so they rely on the proteins encoded by LINEs for transposition. The Alu element is the most common SINE found in primates. It is about 350 base pairs and occupies about 11% of the human genome with around 1,500,000 copies. DNA transposons encode a transposase enzyme between inverted terminal repeats. When expressed, the transposase recognizes the terminal inverted repeats that flank the transposon and catalyzes its excision and reinsertion in a new site. This cut-and-paste mechanism typically reinserts transposons near their original location (within 100kb). DNA transposons are found in bacteria and make up 3% of the human genome and 12% of the genome of the roundworm C. elegans. Genome size is the total number of the DNA base pairs in one copy of a haploid genome. Genome size varies widely across species. Invertebrates have small genomes, this is also correlated to a small number of transposable elements. Fish and Amphibians have intermediate-size genomes, and birds have relatively small genomes but it has been suggested that birds lost a substantial portion of their genomes during the phase of transition to flight. Before this loss, DNA methylation allows the adequate expansion of the genome. In humans, the nuclear genome comprises approximately 3.1 billion nucleotides of DNA, divided into 24 linear molecules, the shortest 45 000 000 nucleotides in length and the longest 248 000 000 nucleotides, each contained in a different chromosome. There is no clear and consistent correlation between morphological complexity and genome size in either prokaryotes or lower eukaryotes. Genome size is largely a function of the expansion and contraction of repetitive DNA elements. Since genomes are very complex, one research strategy is to reduce the number of genes in a genome to the bare minimum and still have the organism in question survive. There is experimental work being done on minimal genomes for single cell organisms as well as minimal genomes for multi-cellular organisms (see developmental biology). The work is both in vivo and in silico. There are many enormous differences in size in genomes, specially mentioned before in the multicellular eukaryotic genomes. Much of this is due to the differing abundances of transposable elements, which evolve by creating new copies of themselves in the chromosomes. Eukaryote genomes often contain many thousands of copies of these elements, most of which have acquired mutations that make them defective. Here is a table of some significant or representative genomes. See #See also for lists of sequenced genomes. All the cells of an organism originate from a single cell, so they are expected to have identical genomes; however, in some cases, differences arise. Both the process of copying DNA during cell division and exposure to environmental mutagens can result in mutations in somatic cells. In some cases, such mutations lead to cancer because they cause cells to divide more quickly and invade surrounding tissues. In certain lymphocytes in the human immune system, V(D)J recombination generates different genomic sequences such that each cell produces a unique antibody or T cell receptors. During meiosis, diploid cells divide twice to produce haploid germ cells. During this process, recombination results in a reshuffling of the genetic material from homologous chromosomes so each gamete has a unique genome. Genome-wide reprogramming in mouse primordial germ cells involves epigenetic imprint erasure leading to totipotency. Reprogramming is facilitated by active DNA demethylation, a process that entails the DNA base excision repair pathway. This pathway is employed in the erasure of CpG methylation (5mC) in primordial germ cells. The erasure of 5mC occurs via its conversion to 5-hydroxymethylcytosine (5hmC) driven by high levels of the ten-eleven dioxygenase enzymes TET1 and TET2. Genomes are more than the sum of an organism's genes and have traits that may be measured and studied without reference to the details of any particular genes and their products. Researchers compare traits such as karyotype (chromosome number), genome size, gene order, codon usage bias, and GC-content to determine what mechanisms could have produced the great variety of genomes that exist today (for recent overviews, see Brown 2002; Saccone and Pesole 2003; Benfey and Protopapas 2004; Gibson and Muse 2004; Reese 2004; Gregory 2005). Duplications play a major role in shaping the genome. Duplication may range from extension of short tandem repeats, to duplication of a cluster of genes, and all the way to duplication of entire chromosomes or even entire genomes. Such duplications are probably fundamental to the creation of genetic novelty. Horizontal gene transfer is invoked to explain how there is often an extreme similarity between small portions of the genomes of two organisms that are otherwise very distantly related. Horizontal gene transfer seems to be common among many microbes. Also, eukaryotic cells seem to have experienced a transfer of some genetic material from their chloroplast and mitochondrial genomes to their nuclear chromosomes. Recent empirical data suggest an important role of viruses and sub-viral RNA-networks to represent a main driving role to generate genetic novelty and natural genome editing. Works of science fiction illustrate concerns about the availability of genome sequences. Michael Crichton's 1990 novel Jurassic Park and the subsequent film tell the story of a billionaire who creates a theme park of cloned dinosaurs on a remote island, with disastrous outcomes. A geneticist extracts dinosaur DNA from the blood of ancient mosquitoes and fills in the gaps with DNA from modern species to create several species of dinosaurs. A chaos theorist is asked to give his expert opinion on the safety of engineering an ecosystem with the dinosaurs, and he repeatedly warns that the outcomes of the project will be unpredictable and ultimately uncontrollable. These warnings about the perils of using genomic information are a major theme of the book. The 1997 film Gattaca is set in a futurist society where genomes of children are engineered to contain the most ideal combination of their parents' traits, and metrics such as risk of heart disease and predicted life expectancy are documented for each person based on their genome. People conceived outside of the eugenics program, known as "In-Valids" suffer discrimination and are relegated to menial occupations. The protagonist of the film is an In-Valid who works to defy the supposed genetic odds and achieve his dream of working as a space navigator. The film warns against a future where genomic information fuels prejudice and extreme class differences between those who can and cannot afford genetically engineered children.
[ { "paragraph_id": 0, "text": "In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding genes, other functional regions of the genome such as regulatory sequences (see non-coding DNA), and often a substantial fraction of junk DNA with no evident function. Almost all eukaryotes have mitochondria and a small mitochondrial genome. Algae and plants also contain chloroplasts with a chloroplast genome.", "title": "" }, { "paragraph_id": 1, "text": "The study of the genome is called genomics. The genomes of many organisms have been sequenced and various regions have been annotated. The Human Genome Project was started in October 1990, and then reported the sequence of the human genome in April 2003, although the initial \"finished\" sequence was missing 8% of the genome consisting mostly of repetitive sequences.", "title": "" }, { "paragraph_id": 2, "text": "With advancements in technology that could handle sequencing of the many repetitive sequences found in human DNA that were not fully uncovered by the original Human Genome Project study, scientists reported the first end-to-end human genome sequence in March 2022.", "title": "" }, { "paragraph_id": 3, "text": "The term genome was created in 1920 by Hans Winkler, professor of botany at the University of Hamburg, Germany. The website Oxford Dictionaries and the Online Etymology Dictionary suggest the name is a blend of the words gene and chromosome. However, see omics for a more thorough discussion. A few related -ome words already existed, such as biome and rhizome, forming a vocabulary into which genome fits systematically.", "title": "Origin of the term" }, { "paragraph_id": 4, "text": "", "title": "Definition" }, { "paragraph_id": 5, "text": "It's very difficult to come up with a precise definition of \"genome.\" It usually refers to the DNA (or sometimes RNA) molecules that carry the genetic information in an organism but sometimes it is difficult to decide which molecules to include in the definition; for example, bacteria usually have one or two large DNA molecules (chromosomes) that contain all of the essential genetic material but they also contain smaller extrachromosomal plasmid molecules that carry important genetic information. The definition of 'genome' that's commonly used in the scientific literature is usually restricted to the large chromosomal DNA molecules in bacteria.", "title": "Definition" }, { "paragraph_id": 6, "text": "Eukaryotic genomes are even more difficult to define because almost all eukaryotic species contain nuclear chromosomes plus extra DNA molecules in the mitochondria. In addition, algae and plants have chloroplast DNA. Most textbooks make a distinction between the nuclear genome and the organelle (mitochondria and chloroplast) genomes so when they speak of, say, the human genome, they are only referring to the genetic material in the nucleus. This is the most common use of 'genome' in the scientific literature.", "title": "Definition" }, { "paragraph_id": 7, "text": "Most eukaryotes are diploid, meaning that there are two copies of each chromosome in the nucleus but the 'genome' refers to only one copy of each chromosome. Some eukaryotes have distinctive sex chromosomes such as the X and Y chromosomes of mammals so the technical definition of the genome must include both copies of the sex chromosomes. When referring to the standard reference genome of humans, for example, it consists of one copy of each of the 22 autosomes plus one X chromosome and one Y chromosome.", "title": "Definition" }, { "paragraph_id": 8, "text": "A genome sequence is the complete list of the nucleotides (A, C, G, and T for DNA genomes) that make up all the chromosomes of an individual or a species. Within a species, the vast majority of nucleotides are identical between individuals, but sequencing multiple individuals is necessary to understand the genetic diversity.", "title": "Sequencing and mapping" }, { "paragraph_id": 9, "text": "In 1976, Walter Fiers at the University of Ghent (Belgium) was the first to establish the complete nucleotide sequence of a viral RNA-genome (Bacteriophage MS2). The next year, Fred Sanger completed the first DNA-genome sequence: Phage Φ-X174, of 5386 base pairs. The first bacterial genome to be sequenced was that of Haemophilus influenzae, completed by a team at The Institute for Genomic Research in 1995. A few months later, the first eukaryotic genome was completed, with sequences of the 16 chromosomes of budding yeast Saccharomyces cerevisiae published as the result of a European-led effort begun in the mid-1980s. The first genome sequence for an archaeon, Methanococcus jannaschii, was completed in 1996, again by The Institute for Genomic Research.", "title": "Sequencing and mapping" }, { "paragraph_id": 10, "text": "The development of new technologies has made genome sequencing dramatically cheaper and easier, and the number of complete genome sequences is growing rapidly. The US National Institutes of Health maintains one of several comprehensive databases of genomic information. Among the thousands of completed genome sequencing projects include those for rice, a mouse, the plant Arabidopsis thaliana, the puffer fish, and the bacteria E. coli. In December 2013, scientists first sequenced the entire genome of a Neanderthal, an extinct species of humans. The genome was extracted from the toe bone of a 130,000-year-old Neanderthal found in a Siberian cave.", "title": "Sequencing and mapping" }, { "paragraph_id": 11, "text": "New sequencing technologies, such as massive parallel sequencing have also opened up the prospect of personal genome sequencing as a diagnostic tool, as pioneered by Manteia Predictive Medicine. A major step toward that goal was the completion in 2007 of the full genome of James D. Watson, one of the co-discoverers of the structure of DNA.", "title": "Sequencing and mapping" }, { "paragraph_id": 12, "text": "Whereas a genome sequence lists the order of every DNA base in a genome, a genome map identifies the landmarks. A genome map is less detailed than a genome sequence and aids in navigating around the genome. The Human Genome Project was organized to map and to sequence the human genome. A fundamental step in the project was the release of a detailed genomic map by Jean Weissenbach and his team at the Genoscope in Paris.", "title": "Sequencing and mapping" }, { "paragraph_id": 13, "text": "Reference genome sequences and maps continue to be updated, removing errors and clarifying regions of high allelic complexity. The decreasing cost of genomic mapping has permitted genealogical sites to offer it as a service, to the extent that one may submit one's genome to crowdsourced scientific endeavours such as DNA.LAND at the New York Genome Center, an example both of the economies of scale and of citizen science.", "title": "Sequencing and mapping" }, { "paragraph_id": 14, "text": "Viral genomes can be composed of either RNA or DNA. The genomes of RNA viruses can be either single-stranded RNA or double-stranded RNA, and may contain one or more separate RNA molecules (segments: monopartit or multipartit genome). DNA viruses can have either single-stranded or double-stranded genomes. Most DNA virus genomes are composed of a single, linear molecule of DNA, but some are made up of a circular DNA molecule.", "title": "Viral genomes" }, { "paragraph_id": 15, "text": "Prokaryotes and eukaryotes have DNA genomes. Archaea and most bacteria have a single circular chromosome, however, some bacterial species have linear or multiple chromosomes. If the DNA is replicated faster than the bacterial cells divide, multiple copies of the chromosome can be present in a single cell, and if the cells divide faster than the DNA can be replicated, multiple replication of the chromosome is initiated before the division occurs, allowing daughter cells to inherit complete genomes and already partially replicated chromosomes. Most prokaryotes have very little repetitive DNA in their genomes. However, some symbiotic bacteria (e.g. Serratia symbiotica) have reduced genomes and a high fraction of pseudogenes: only ~40% of their DNA encodes proteins.", "title": "Prokaryotic genomes" }, { "paragraph_id": 16, "text": "Some bacteria have auxiliary genetic material, also part of their genome, which is carried in plasmids. For this, the word genome should not be used as a synonym of chromosome.", "title": "Prokaryotic genomes" }, { "paragraph_id": 17, "text": "Eukaryotic genomes are composed of one or more linear DNA chromosomes. The number of chromosomes varies widely from Jack jumper ants and an asexual nemotode, which each have only one pair, to a fern species that has 720 pairs. It is surprising the amount of DNA that eukaryotic genomes contain compared to other genomes. The amount is even more than what is necessary for DNA protein-coding and noncoding genes due to the fact that eukaryotic genomes show as much as 64,000-fold variation in their sizes. However, this special characteristic is caused by the presence of repetitive DNA, and transposable elements (TEs).", "title": "Eukaryotic genomes" }, { "paragraph_id": 18, "text": "A typical human cell has two copies of each of 22 autosomes, one inherited from each parent, plus two sex chromosomes, making it diploid. Gametes, such as ova, sperm, spores, and pollen, are haploid, meaning they carry only one copy of each chromosome. In addition to the chromosomes in the nucleus, organelles such as the chloroplasts and mitochondria have their own DNA. Mitochondria are sometimes said to have their own genome often referred to as the \"mitochondrial genome\". The DNA found within the chloroplast may be referred to as the \"plastome\". Like the bacteria they originated from, mitochondria and chloroplasts have a circular chromosome.", "title": "Eukaryotic genomes" }, { "paragraph_id": 19, "text": "Unlike prokaryotes where exon-intron organization of protein coding genes exists but is rather exceptional, eukaryotes generally have these features in their genes and their genomes contain variable amounts of repetitive DNA. In mammals and plants, the majority of the genome is composed of repetitive DNA. Genes in eukaryotic genomes can be annotated using FINDER.", "title": "Eukaryotic genomes" }, { "paragraph_id": 20, "text": "High-throughput technology makes sequencing to assemble new genomes accessible to everyone. Sequence polymorphisms are typically discovered by comparing resequenced isolates to a reference, whereas analyses of coverage depth and mapping topology can provide details regarding structural variations such as chromosomal translocations and segmental duplications.", "title": "Eukaryotic genomes" }, { "paragraph_id": 21, "text": "DNA sequences that carry the instructions to make proteins are referred to as coding sequences. The proportion of the genome occupied by coding sequences varies widely. A larger genome does not necessarily contain more genes, and the proportion of non-repetitive DNA decreases along with increasing genome size in complex eukaryotes.", "title": "Eukaryotic genomes" }, { "paragraph_id": 22, "text": "Noncoding sequences include introns, sequences for non-coding RNAs, regulatory regions, and repetitive DNA. Noncoding sequences make up 98% of the human genome. There are two categories of repetitive DNA in the genome: tandem repeats and interspersed repeats.", "title": "Eukaryotic genomes" }, { "paragraph_id": 23, "text": "Short, non-coding sequences that are repeated head-to-tail are called tandem repeats. Microsatellites consisting of 2–5 basepair repeats, while minisatellite repeats are 30–35 bp. Tandem repeats make up about 4% of the human genome and 9% of the fruit fly genome. Tandem repeats can be functional. For example, telomeres are composed of the tandem repeat TTAGGG in mammals, and they play an important role in protecting the ends of the chromosome.", "title": "Eukaryotic genomes" }, { "paragraph_id": 24, "text": "In other cases, expansions in the number of tandem repeats in exons or introns can cause disease. For example, the human gene huntingtin (Htt) typically contains 6–29 tandem repeats of the nucleotides CAG (encoding a polyglutamine tract). An expansion to over 36 repeats results in Huntington's disease, a neurodegenerative disease. Twenty human disorders are known to result from similar tandem repeat expansions in various genes. The mechanism by which proteins with expanded polygulatamine tracts cause death of neurons is not fully understood. One possibility is that the proteins fail to fold properly and avoid degradation, instead accumulating in aggregates that also sequester important transcription factors, thereby altering gene expression.", "title": "Eukaryotic genomes" }, { "paragraph_id": 25, "text": "Tandem repeats are usually caused by slippage during replication, unequal crossing-over and gene conversion.", "title": "Eukaryotic genomes" }, { "paragraph_id": 26, "text": "Transposable elements (TEs) are sequences of DNA with a defined structure that are able to change their location in the genome. TEs are categorized as either as a mechanism that replicates by copy-and-paste or as a mechanism that can be excised from the genome and inserted at a new location. In the human genome, there are three important classes of TEs that make up more than 45% of the human DNA; these classes are The long interspersed nuclear elements (LINEs), The interspersed nuclear elements (SINEs), and endogenous retroviruses. These elements have a big potential to modify the genetic control in a host organism.", "title": "Eukaryotic genomes" }, { "paragraph_id": 27, "text": "The movement of TEs is a driving force of genome evolution in eukaryotes because their insertion can disrupt gene functions, homologous recombination between TEs can produce duplications, and TE can shuffle exons and regulatory sequences to new locations.", "title": "Eukaryotic genomes" }, { "paragraph_id": 28, "text": "Retrotransposons are found mostly in eukaryotes but not found in prokaryotes. Retrotransposons form a large portion of the genomes of many eukaryotes. A retrotransposon is a transposable element that transposes through an RNA intermediate. Retrotransposons are composed of DNA, but are transcribed into RNA for transposition, then the RNA transcript is copied back to DNA formation with the help of a specific enzyme called reverse transcriptase. A retrotransposon that carries reverse transcriptase in its sequence can trigger its own transposition but retrotransposons that lack a reverse transcriptase must use reverse transcriptase synthesized by another retrotransposon. Retrotransposons can be transcribed into RNA, which are then duplicated at another site into the genome. Retrotransposons can be divided into long terminal repeats (LTRs) and non-long terminal repeats (Non-LTRs).", "title": "Eukaryotic genomes" }, { "paragraph_id": 29, "text": "Long terminal repeats (LTRs) are derived from ancient retroviral infections, so they encode proteins related to retroviral proteins including gag (structural proteins of the virus), pol (reverse transcriptase and integrase), pro (protease), and in some cases env (envelope) genes. These genes are flanked by long repeats at both 5' and 3' ends. It has been reported that LTRs consist of the largest fraction in most plant genome and might account for the huge variation in genome size.", "title": "Eukaryotic genomes" }, { "paragraph_id": 30, "text": "Non-long terminal repeats (Non-LTRs) are classified as long interspersed nuclear elements (LINEs), short interspersed nuclear elements (SINEs), and Penelope-like elements (PLEs). In Dictyostelium discoideum, there is another DIRS-like elements belong to Non-LTRs. Non-LTRs are widely spread in eukaryotic genomes.", "title": "Eukaryotic genomes" }, { "paragraph_id": 31, "text": "Long interspersed elements (LINEs) encode genes for reverse transcriptase and endonuclease, making them autonomous transposable elements. The human genome has around 500,000 LINEs, taking around 17% of the genome.", "title": "Eukaryotic genomes" }, { "paragraph_id": 32, "text": "Short interspersed elements (SINEs) are usually less than 500 base pairs and are non-autonomous, so they rely on the proteins encoded by LINEs for transposition. The Alu element is the most common SINE found in primates. It is about 350 base pairs and occupies about 11% of the human genome with around 1,500,000 copies.", "title": "Eukaryotic genomes" }, { "paragraph_id": 33, "text": "DNA transposons encode a transposase enzyme between inverted terminal repeats. When expressed, the transposase recognizes the terminal inverted repeats that flank the transposon and catalyzes its excision and reinsertion in a new site. This cut-and-paste mechanism typically reinserts transposons near their original location (within 100kb). DNA transposons are found in bacteria and make up 3% of the human genome and 12% of the genome of the roundworm C. elegans.", "title": "Eukaryotic genomes" }, { "paragraph_id": 34, "text": "Genome size is the total number of the DNA base pairs in one copy of a haploid genome. Genome size varies widely across species. Invertebrates have small genomes, this is also correlated to a small number of transposable elements. Fish and Amphibians have intermediate-size genomes, and birds have relatively small genomes but it has been suggested that birds lost a substantial portion of their genomes during the phase of transition to flight. Before this loss, DNA methylation allows the adequate expansion of the genome.", "title": "Genome size" }, { "paragraph_id": 35, "text": "In humans, the nuclear genome comprises approximately 3.1 billion nucleotides of DNA, divided into 24 linear molecules, the shortest 45 000 000 nucleotides in length and the longest 248 000 000 nucleotides, each contained in a different chromosome. There is no clear and consistent correlation between morphological complexity and genome size in either prokaryotes or lower eukaryotes. Genome size is largely a function of the expansion and contraction of repetitive DNA elements.", "title": "Genome size" }, { "paragraph_id": 36, "text": "Since genomes are very complex, one research strategy is to reduce the number of genes in a genome to the bare minimum and still have the organism in question survive. There is experimental work being done on minimal genomes for single cell organisms as well as minimal genomes for multi-cellular organisms (see developmental biology). The work is both in vivo and in silico.", "title": "Genome size" }, { "paragraph_id": 37, "text": "There are many enormous differences in size in genomes, specially mentioned before in the multicellular eukaryotic genomes. Much of this is due to the differing abundances of transposable elements, which evolve by creating new copies of themselves in the chromosomes. Eukaryote genomes often contain many thousands of copies of these elements, most of which have acquired mutations that make them defective. Here is a table of some significant or representative genomes. See #See also for lists of sequenced genomes.", "title": "Genome size" }, { "paragraph_id": 38, "text": "All the cells of an organism originate from a single cell, so they are expected to have identical genomes; however, in some cases, differences arise. Both the process of copying DNA during cell division and exposure to environmental mutagens can result in mutations in somatic cells. In some cases, such mutations lead to cancer because they cause cells to divide more quickly and invade surrounding tissues. In certain lymphocytes in the human immune system, V(D)J recombination generates different genomic sequences such that each cell produces a unique antibody or T cell receptors.", "title": "Genomic alterations" }, { "paragraph_id": 39, "text": "During meiosis, diploid cells divide twice to produce haploid germ cells. During this process, recombination results in a reshuffling of the genetic material from homologous chromosomes so each gamete has a unique genome.", "title": "Genomic alterations" }, { "paragraph_id": 40, "text": "Genome-wide reprogramming in mouse primordial germ cells involves epigenetic imprint erasure leading to totipotency. Reprogramming is facilitated by active DNA demethylation, a process that entails the DNA base excision repair pathway. This pathway is employed in the erasure of CpG methylation (5mC) in primordial germ cells. The erasure of 5mC occurs via its conversion to 5-hydroxymethylcytosine (5hmC) driven by high levels of the ten-eleven dioxygenase enzymes TET1 and TET2.", "title": "Genomic alterations" }, { "paragraph_id": 41, "text": "Genomes are more than the sum of an organism's genes and have traits that may be measured and studied without reference to the details of any particular genes and their products. Researchers compare traits such as karyotype (chromosome number), genome size, gene order, codon usage bias, and GC-content to determine what mechanisms could have produced the great variety of genomes that exist today (for recent overviews, see Brown 2002; Saccone and Pesole 2003; Benfey and Protopapas 2004; Gibson and Muse 2004; Reese 2004; Gregory 2005).", "title": "Genome evolution" }, { "paragraph_id": 42, "text": "Duplications play a major role in shaping the genome. Duplication may range from extension of short tandem repeats, to duplication of a cluster of genes, and all the way to duplication of entire chromosomes or even entire genomes. Such duplications are probably fundamental to the creation of genetic novelty.", "title": "Genome evolution" }, { "paragraph_id": 43, "text": "Horizontal gene transfer is invoked to explain how there is often an extreme similarity between small portions of the genomes of two organisms that are otherwise very distantly related. Horizontal gene transfer seems to be common among many microbes. Also, eukaryotic cells seem to have experienced a transfer of some genetic material from their chloroplast and mitochondrial genomes to their nuclear chromosomes. Recent empirical data suggest an important role of viruses and sub-viral RNA-networks to represent a main driving role to generate genetic novelty and natural genome editing.", "title": "Genome evolution" }, { "paragraph_id": 44, "text": "Works of science fiction illustrate concerns about the availability of genome sequences.", "title": "In fiction" }, { "paragraph_id": 45, "text": "Michael Crichton's 1990 novel Jurassic Park and the subsequent film tell the story of a billionaire who creates a theme park of cloned dinosaurs on a remote island, with disastrous outcomes. A geneticist extracts dinosaur DNA from the blood of ancient mosquitoes and fills in the gaps with DNA from modern species to create several species of dinosaurs. A chaos theorist is asked to give his expert opinion on the safety of engineering an ecosystem with the dinosaurs, and he repeatedly warns that the outcomes of the project will be unpredictable and ultimately uncontrollable. These warnings about the perils of using genomic information are a major theme of the book.", "title": "In fiction" }, { "paragraph_id": 46, "text": "The 1997 film Gattaca is set in a futurist society where genomes of children are engineered to contain the most ideal combination of their parents' traits, and metrics such as risk of heart disease and predicted life expectancy are documented for each person based on their genome. People conceived outside of the eugenics program, known as \"In-Valids\" suffer discrimination and are relegated to menial occupations. The protagonist of the film is an In-Valid who works to defy the supposed genetic odds and achieve his dream of working as a space navigator. The film warns against a future where genomic information fuels prejudice and extreme class differences between those who can and cannot afford genetically engineered children.", "title": "In fiction" } ]
In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA. The nuclear genome includes protein-coding genes and non-coding genes, other functional regions of the genome such as regulatory sequences, and often a substantial fraction of junk DNA with no evident function. Almost all eukaryotes have mitochondria and a small mitochondrial genome. Algae and plants also contain chloroplasts with a chloroplast genome. The study of the genome is called genomics. The genomes of many organisms have been sequenced and various regions have been annotated. The Human Genome Project was started in October 1990, and then reported the sequence of the human genome in April 2003, although the initial "finished" sequence was missing 8% of the genome consisting mostly of repetitive sequences. With advancements in technology that could handle sequencing of the many repetitive sequences found in human DNA that were not fully uncovered by the original Human Genome Project study, scientists reported the first end-to-end human genome sequence in March 2022.
2001-08-31T00:44:02Z
2023-11-08T21:44:04Z
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https://en.wikipedia.org/wiki/Genome
12,393
Gaia philosophy
Gaia philosophy (named after Gaia, Greek goddess of the Earth) is a broadly inclusive term for relating concepts about, humanity as an effect of the life of this planet. The Gaia hypothesis holds that all organisms on a life-giving planet regulate the biosphere in such a way as to promote its habitability. Gaia concepts draw a connection between the survivability of a species (hence its evolutionary course) and its usefulness to the survival of other species. While there were a number of precursors to Gaia hypothesis, the first scientific form of this idea was proposed as the Gaia hypothesis by James Lovelock, a UK chemist, in 1970. The Gaia hypothesis deals with the concept of biological homeostasis, and claims the resident life forms of a host planet coupled with their environment have acted and act like a single, self-regulating system. This system includes the near-surface rocks, the soil, and the atmosphere. Today, many scientists consider such ideas to be unsupported by, or at odds with, the available evidence (see Gaia hypothesis criticism). These theories are, however, significant in green politics. There are some mystical, scientific and religious predecessors to the Gaia philosophy, which had a Gaia-like conceptual basis. Many religious mythologies had a view of Earth as being a whole that is greater than the sum of its parts (e.g. some Native American religions and various forms of shamanism). Isaac Newton wrote of the earth, "Thus this Earth resembles a great animal or rather inanimate vegetable, draws in æthereall breath for its dayly refreshment & vitall ferment & transpires again with gross exhalations, And according to the condition of all other things living ought to have its times of beginning youth old age & perishing." Pierre Teilhard de Chardin, a paleontologist and geologist, believed that evolution fractally unfolded from cell to organism to planet to solar system and ultimately the whole universe, as we humans see it from our limited perspective. Teilhard later influenced Thomas Berry and many Catholic humanist thinkers of the 20th century. Lewis Thomas believed that Earth should be viewed as a single cell; he derived this view from Johannes Kepler's view of Earth as a single round organism. Buckminster Fuller is generally credited with making the idea respectable in Western scientific circles in the 20th century. Building to some degree on his observations and artifacts, e.g. the Dymaxion map of the Earth he created, others began to ask if there was a way to make the Gaia theory scientifically sound. In 1931, L.G.M. Baas Becking delivered an inaugural lecture about Gaia in the sense of life and earth. Oberon Zell-Ravenheart in 1970 in an article in Green Egg Magazine, independently articulated the Gaia Thesis. Many believe that these ideas cannot be considered scientific hypotheses; by definition a scientific hypothesis must make testable predictions. As the above claims are not currently testable, they are outside the bounds of current science. This does not mean that these ideas are not theoretically testable. As one can postulate tests that could be applied, given enough time and space, then these ideas should be seen as scientific hypotheses. These are conjectures and perhaps can only be considered as social and maybe political philosophy; they may have implications for theology, or thealogy as Zell-Ravenheart and Isaac Bonewits put it. According to James Kirchner there is a spectrum of Gaia hypotheses, ranging from the undeniable to radical. At one end is the undeniable statement that the organisms on the Earth have radically altered its composition. A stronger position is that the Earth's biosphere effectively acts as if it is a self-organizing system which works in such a way as to keep its systems in some kind of equilibrium that is conducive to life. Today many scientists consider that such a view (and any stronger views) are unlikely to be correct. An even stronger claim is that all lifeforms are part of a single planetary being, called Gaia. In this view, the atmosphere, the seas, the terrestrial crust would be the result of interventions carried out by Gaia, through the coevolving diversity of living organisms. The most extreme form of Gaia theory is that the entire Earth is a single unified organism with a highly intelligent mind that arose as an emergent property of the whole biosphere. In this view, the Earth's biosphere is consciously manipulating the climate in order to make conditions more conducive to life. Scientists contend that there is no evidence at all to support this last point of view, and it has come about because many people do not understand the concept of homeostasis. Many non-scientists instinctively and incorrectly see homeostasis as a process that requires conscious control. The more speculative versions of Gaia, including versions in which it is believed that the Earth is actually conscious, sentient, and highly intelligent, are usually considered outside the bounds of what is usually considered science. Buckminster Fuller has been credited as the first to incorporate scientific ideas into a Gaia theory, which he did with his Dymaxion map of the Earth. The first scientifically rigorous theory was the Gaia hypothesis by James Lovelock, a UK chemist. A variant of this hypothesis was developed by Lynn Margulis, a microbiologist, in 1979. Her version is sometimes called the "Gaia Theory" (note uppercase-T). Her model is more limited in scope than the one that Lovelock proposed. Whether this sort of system is present on Earth is still open to debate. Some relatively simple homeostatic mechanisms are generally accepted. For example, when atmospheric carbon dioxide levels rise, plants are able to grow better and thus remove more carbon dioxide from the atmosphere. Other biological effects and feedbacks exist, but the extent to which these mechanisms have stabilized and modified the Earth's overall climate is largely not known. The Gaia hypothesis is sometimes viewed from significantly different philosophical perspectives. Some environmentalists view it as an almost conscious process, in which the Earth's ecosystem is literally viewed as a single unified organism. Some evolutionary biologists, on the other hand, view it as an undirected emergent property of the ecosystem: as each individual species pursues its own self-interest, their combined actions tend to have counterbalancing effects on environmental change. Proponents of this view sometimes point to examples of life's actions in the past that have resulted in dramatic change rather than stable equilibrium, such as the conversion of the Earth's atmosphere from a reducing environment to an oxygen-rich one. Depending on how strongly the case is stated, the hypothesis conflicts with mainstream neo-Darwinism. Most biologists would accept Daisyworld-style homeostasis as possible, but would certainly not accept the idea that this equates to the whole biosphere acting as one organism. A very small number of scientists, and a much larger number of environmental activists, claim that Earth's biosphere is consciously manipulating the climate in order to make conditions more conducive to life. Scientists contend that there is no evidence to support this belief. A social science view of Gaia theory is the role of humans as a keystone species who may be able to accomplish global homeostasis. Whilst a few social scientists who draw inspiration from 'organic' views of society have embraced Gaia philosophy as a way to explain the human-nature interconnections, most professional social scientists are more involved in reflecting upon the way Gaia philosophy is used and engaged with within sub-sections of society. Alan Marshall, in the Department of Social Sciences at Mahidol University, for example, reflects upon the way Gaia philosophy has been used and advocated in various societal settings by environmentalists, spiritualists, managers, economists, and scientists and engineers. As Marshall explains, most social scientists had already given up on systems ideas of society in the 1960s before Gaia philosophy was born under James Lovelock's ideas since such ideas were interpreted as supporting conservatism and traditionalism. Gaia theory also influenced the dynamics of green politics. Rosemary Radford Ruether, the American feminist scholar and theologian, wrote a book called "Gaia and God: An Ecofeminist Theology of Earth Healing". A book edited by Allan Hunt Badiner called Dharma Gaia explores the ground where Buddhism and ecology meet through writings by the Dalai Lama, Gary Snyder, Thich Nhat Hanh, Allen Ginsberg, David Abram, Joanna Macy, Robert Aitken, and 25 other Buddhists and ecologists. Gaianism, an earth-centered philosophical, holistic, and spiritual belief that shares expressions with earth religions and paganism while not identifying exclusively with any specific religion, sprang from the gaia hypothesis. One of the most problematic issues with referring to Gaia as an organism is its apparent failure to meet the biological criterion of being able to reproduce. Obviously this limited view misunderstands cosmic cycles of death of planets and stars into star stuff that creates more planets and stars over billions of years. Richard Dawkins has asserted that the planet is not the offspring of any parents and is unable to reproduce.
[ { "paragraph_id": 0, "text": "Gaia philosophy (named after Gaia, Greek goddess of the Earth) is a broadly inclusive term for relating concepts about, humanity as an effect of the life of this planet.", "title": "" }, { "paragraph_id": 1, "text": "The Gaia hypothesis holds that all organisms on a life-giving planet regulate the biosphere in such a way as to promote its habitability. Gaia concepts draw a connection between the survivability of a species (hence its evolutionary course) and its usefulness to the survival of other species. While there were a number of precursors to Gaia hypothesis, the first scientific form of this idea was proposed as the Gaia hypothesis by James Lovelock, a UK chemist, in 1970. The Gaia hypothesis deals with the concept of biological homeostasis, and claims the resident life forms of a host planet coupled with their environment have acted and act like a single, self-regulating system. This system includes the near-surface rocks, the soil, and the atmosphere. Today, many scientists consider such ideas to be unsupported by, or at odds with, the available evidence (see Gaia hypothesis criticism). These theories are, however, significant in green politics.", "title": "" }, { "paragraph_id": 2, "text": "There are some mystical, scientific and religious predecessors to the Gaia philosophy, which had a Gaia-like conceptual basis. Many religious mythologies had a view of Earth as being a whole that is greater than the sum of its parts (e.g. some Native American religions and various forms of shamanism).", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 3, "text": "Isaac Newton wrote of the earth, \"Thus this Earth resembles a great animal or rather inanimate vegetable, draws in æthereall breath for its dayly refreshment & vitall ferment & transpires again with gross exhalations, And according to the condition of all other things living ought to have its times of beginning youth old age & perishing.\"", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 4, "text": "Pierre Teilhard de Chardin, a paleontologist and geologist, believed that evolution fractally unfolded from cell to organism to planet to solar system and ultimately the whole universe, as we humans see it from our limited perspective. Teilhard later influenced Thomas Berry and many Catholic humanist thinkers of the 20th century.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 5, "text": "Lewis Thomas believed that Earth should be viewed as a single cell; he derived this view from Johannes Kepler's view of Earth as a single round organism.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 6, "text": "Buckminster Fuller is generally credited with making the idea respectable in Western scientific circles in the 20th century. Building to some degree on his observations and artifacts, e.g. the Dymaxion map of the Earth he created, others began to ask if there was a way to make the Gaia theory scientifically sound.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 7, "text": "In 1931, L.G.M. Baas Becking delivered an inaugural lecture about Gaia in the sense of life and earth.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 8, "text": "Oberon Zell-Ravenheart in 1970 in an article in Green Egg Magazine, independently articulated the Gaia Thesis.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 9, "text": "Many believe that these ideas cannot be considered scientific hypotheses; by definition a scientific hypothesis must make testable predictions. As the above claims are not currently testable, they are outside the bounds of current science. This does not mean that these ideas are not theoretically testable. As one can postulate tests that could be applied, given enough time and space, then these ideas should be seen as scientific hypotheses.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 10, "text": "These are conjectures and perhaps can only be considered as social and maybe political philosophy; they may have implications for theology, or thealogy as Zell-Ravenheart and Isaac Bonewits put it.", "title": "Predecessors to the Gaia theory" }, { "paragraph_id": 11, "text": "According to James Kirchner there is a spectrum of Gaia hypotheses, ranging from the undeniable to radical. At one end is the undeniable statement that the organisms on the Earth have radically altered its composition. A stronger position is that the Earth's biosphere effectively acts as if it is a self-organizing system which works in such a way as to keep its systems in some kind of equilibrium that is conducive to life. Today many scientists consider that such a view (and any stronger views) are unlikely to be correct. An even stronger claim is that all lifeforms are part of a single planetary being, called Gaia. In this view, the atmosphere, the seas, the terrestrial crust would be the result of interventions carried out by Gaia, through the coevolving diversity of living organisms.", "title": "Range of views" }, { "paragraph_id": 12, "text": "The most extreme form of Gaia theory is that the entire Earth is a single unified organism with a highly intelligent mind that arose as an emergent property of the whole biosphere. In this view, the Earth's biosphere is consciously manipulating the climate in order to make conditions more conducive to life. Scientists contend that there is no evidence at all to support this last point of view, and it has come about because many people do not understand the concept of homeostasis. Many non-scientists instinctively and incorrectly see homeostasis as a process that requires conscious control.", "title": "Range of views" }, { "paragraph_id": 13, "text": "The more speculative versions of Gaia, including versions in which it is believed that the Earth is actually conscious, sentient, and highly intelligent, are usually considered outside the bounds of what is usually considered science.", "title": "Range of views" }, { "paragraph_id": 14, "text": "Buckminster Fuller has been credited as the first to incorporate scientific ideas into a Gaia theory, which he did with his Dymaxion map of the Earth.", "title": "Gaia in biology and science" }, { "paragraph_id": 15, "text": "The first scientifically rigorous theory was the Gaia hypothesis by James Lovelock, a UK chemist.", "title": "Gaia in biology and science" }, { "paragraph_id": 16, "text": "A variant of this hypothesis was developed by Lynn Margulis, a microbiologist, in 1979. Her version is sometimes called the \"Gaia Theory\" (note uppercase-T). Her model is more limited in scope than the one that Lovelock proposed.", "title": "Gaia in biology and science" }, { "paragraph_id": 17, "text": "Whether this sort of system is present on Earth is still open to debate. Some relatively simple homeostatic mechanisms are generally accepted. For example, when atmospheric carbon dioxide levels rise, plants are able to grow better and thus remove more carbon dioxide from the atmosphere. Other biological effects and feedbacks exist, but the extent to which these mechanisms have stabilized and modified the Earth's overall climate is largely not known.", "title": "Gaia in biology and science" }, { "paragraph_id": 18, "text": "The Gaia hypothesis is sometimes viewed from significantly different philosophical perspectives. Some environmentalists view it as an almost conscious process, in which the Earth's ecosystem is literally viewed as a single unified organism. Some evolutionary biologists, on the other hand, view it as an undirected emergent property of the ecosystem: as each individual species pursues its own self-interest, their combined actions tend to have counterbalancing effects on environmental change. Proponents of this view sometimes point to examples of life's actions in the past that have resulted in dramatic change rather than stable equilibrium, such as the conversion of the Earth's atmosphere from a reducing environment to an oxygen-rich one.", "title": "Gaia in biology and science" }, { "paragraph_id": 19, "text": "Depending on how strongly the case is stated, the hypothesis conflicts with mainstream neo-Darwinism. Most biologists would accept Daisyworld-style homeostasis as possible, but would certainly not accept the idea that this equates to the whole biosphere acting as one organism.", "title": "Gaia in biology and science" }, { "paragraph_id": 20, "text": "A very small number of scientists, and a much larger number of environmental activists, claim that Earth's biosphere is consciously manipulating the climate in order to make conditions more conducive to life. Scientists contend that there is no evidence to support this belief.", "title": "Gaia in biology and science" }, { "paragraph_id": 21, "text": "A social science view of Gaia theory is the role of humans as a keystone species who may be able to accomplish global homeostasis. Whilst a few social scientists who draw inspiration from 'organic' views of society have embraced Gaia philosophy as a way to explain the human-nature interconnections, most professional social scientists are more involved in reflecting upon the way Gaia philosophy is used and engaged with within sub-sections of society. Alan Marshall, in the Department of Social Sciences at Mahidol University, for example, reflects upon the way Gaia philosophy has been used and advocated in various societal settings by environmentalists, spiritualists, managers, economists, and scientists and engineers. As Marshall explains, most social scientists had already given up on systems ideas of society in the 1960s before Gaia philosophy was born under James Lovelock's ideas since such ideas were interpreted as supporting conservatism and traditionalism. Gaia theory also influenced the dynamics of green politics.", "title": "Gaia in the social sciences and politics" }, { "paragraph_id": 22, "text": "Rosemary Radford Ruether, the American feminist scholar and theologian, wrote a book called \"Gaia and God: An Ecofeminist Theology of Earth Healing\".", "title": "Gaia in religion" }, { "paragraph_id": 23, "text": "A book edited by Allan Hunt Badiner called Dharma Gaia explores the ground where Buddhism and ecology meet through writings by the Dalai Lama, Gary Snyder, Thich Nhat Hanh, Allen Ginsberg, David Abram, Joanna Macy, Robert Aitken, and 25 other Buddhists and ecologists.", "title": "Gaia in religion" }, { "paragraph_id": 24, "text": "Gaianism, an earth-centered philosophical, holistic, and spiritual belief that shares expressions with earth religions and paganism while not identifying exclusively with any specific religion, sprang from the gaia hypothesis.", "title": "Gaia in religion" }, { "paragraph_id": 25, "text": "One of the most problematic issues with referring to Gaia as an organism is its apparent failure to meet the biological criterion of being able to reproduce. Obviously this limited view misunderstands cosmic cycles of death of planets and stars into star stuff that creates more planets and stars over billions of years. Richard Dawkins has asserted that the planet is not the offspring of any parents and is unable to reproduce.", "title": "Criticism" }, { "paragraph_id": 26, "text": "", "title": "References" } ]
Gaia philosophy is a broadly inclusive term for relating concepts about, humanity as an effect of the life of this planet. The Gaia hypothesis holds that all organisms on a life-giving planet regulate the biosphere in such a way as to promote its habitability. Gaia concepts draw a connection between the survivability of a species and its usefulness to the survival of other species. While there were a number of precursors to Gaia hypothesis, the first scientific form of this idea was proposed as the Gaia hypothesis by James Lovelock, a UK chemist, in 1970. The Gaia hypothesis deals with the concept of biological homeostasis, and claims the resident life forms of a host planet coupled with their environment have acted and act like a single, self-regulating system. This system includes the near-surface rocks, the soil, and the atmosphere. Today, many scientists consider such ideas to be unsupported by, or at odds with, the available evidence. These theories are, however, significant in green politics.
2001-10-11T04:37:59Z
2023-11-02T12:43:32Z
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https://en.wikipedia.org/wiki/Gaia_philosophy
12,395
Greenhouse effect
The greenhouse effect occurs when greenhouse gases in a planet's atmosphere trap some of the heat radiated from the planet's surface, raising its temperature. This process happens because stars emit shortwave radiation that passes through greenhouse gases, but planets emit longwave radiation that is partly absorbed by greenhouse gases. That difference reduces the rate at which a planet can cool off in response to being warmed by its host star. Adding to greenhouse gases further reduces the rate a planet emits radiation to space, raising its average surface temperature. The Earth's average surface temperature would be about −18 °C (−0.4 °F) without the greenhouse effect, compared to Earth's 20th century average of about 14 °C (57 °F), or a more recent average of about 15 °C (59 °F). In addition to naturally present greenhouse gases, burning of fossil fuels has increased amounts of carbon dioxide and methane in the atmosphere. As a result, global warming of about 1.2 °C (2.2 °F) has occurred since the industrial revolution, with the global average surface temperature increasing at a rate of 0.18 °C (0.32 °F) per decade since 1981. The wavelengths of radiation emitted by the Sun and Earth differ because their surface temperatures are different. The Sun has a surface temperature of 5,500 °C (9,900 °F), so it emits most of its energy as shortwave radiation in near-infrared and visible wavelengths (as sunlight). In contrast, Earth's surface has a much lower temperature, so it emits longwave radiation at mid- and far-infrared wavelengths (sometimes called thermal radiation or radiated heat). A gas is a greenhouse gas if it absorbs longwave radiation. Earth's atmosphere absorbs only 23% of incoming shortwave radiation, but absorbs 90% of the longwave radiation emitted by the surface, thus accumulating energy and warming the Earth's surface. The existence of the greenhouse effect, while not named as such, was proposed as early as 1824 by Joseph Fourier. The argument and the evidence were further strengthened by Claude Pouillet in 1827 and 1838. In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxide. The term greenhouse was first applied to this phenomenon by Nils Gustaf Ekholm in 1901. The greenhouse effect on Earth is defined as: "The infrared radiative effect of all infrared absorbing constituents in the atmosphere. Greenhouse gases (GHGs), clouds, and some aerosols absorb terrestrial radiation emitted by the Earth’s surface and elsewhere in the atmosphere." The enhanced greenhouse effect describes the fact that by increasing the concentration of GHGs in the atmosphere (due to human action), the natural greenhouse effect is increased. The term greenhouse effect comes from an analogy to greenhouses. Both greenhouses and the greenhouse effect work by retaining heat from sunlight, but the way they retain heat differs. Greenhouses retain heat mainly by blocking convection (the movement of air). In contrast, the greenhouse effect retains heat by restricting radiative transfer through the air and reducing the rate at which heat escapes to space. Matter emits thermal radiation in an amount that is directly proportional to the fourth power of its temperature. Some of the radiation emitted by the Earth's surface is absorbed by greenhouse gases and clouds. Without this absorption, Earth's surface would have an average temperature of −18 °C (−0.4 °F). However, because some of the radiation is absorbed, Earth's average surface temperature is around 15 °C (59 °F). Thus, the Earth's greenhouse effect may be measured as a temperature change of 33 °C (59 °F). Thermal radiation is characterized by how much energy it carries, typically in watts per square meter (W/m). Scientists also measure the greenhouse effect based on how much more longwave thermal radiation leaves the Earth's surface than reaches space. Currently, longwave radiation leaves the surface at an average rate of 398 W/m, but only 239 W/m reaches space. Thus, the Earth's greenhouse effect can also be measured as an energy flow change of 159 W/m. The greenhouse effect can be expressed as a fraction (0.40) or percentage (40%) of the longwave thermal radiation that leaves Earth's surface but does not reach space. Whether the greenhouse effect is expressed as a change in temperature or as a change in longwave thermal radiation, the same effect is being measured. Strengthening of the greenhouse effect through additional greenhouse gases from human activities is known as the enhanced greenhouse effect. As well as being inferred from measurements by ARGO, CERES and other instruments throughout the 21st century, this increase in radiative forcing from human activity has been observed directly, and is attributable mainly to increased atmospheric carbon dioxide levels. CO2 is produced by fossil fuel burning and other activities such as cement production and tropical deforestation. Measurements of CO2 from the Mauna Loa Observatory show that concentrations have increased from about 313 parts per million (ppm) in 1960, passing the 400 ppm milestone in 2013. The current observed amount of CO2 exceeds the geological record maxima (≈300 ppm) from ice core data. Over the past 800,000 years, ice core data shows that carbon dioxide has varied from values as low as 180 ppm to the pre-industrial level of 270 ppm. Paleoclimatologists consider variations in carbon dioxide concentration to be a fundamental factor influencing climate variations over this time scale. Hotter matter emits shorter wavelengths of radiation. As a result, the Sun emits shortwave radiation as sunlight while the Earth and its atmosphere emit longwave radiation. Sunlight includes ultraviolet, visible light, and near-infrared radiation. Sunlight is reflected and absorbed by the Earth and its atmosphere. The atmosphere and clouds reflect about 23% and absorb 23%. The surface reflects 7% and absorbs 48%. Overall, Earth reflects about 30% of the incoming sunlight, and absorbs the rest (240 W/m). The Earth and its atmosphere emit longwave radiation, also known as thermal infrared or terrestrial radiation. Informally, longwave radiation is sometimes called thermal radiation. Outgoing longwave radiation (OLR) is the radiation from Earth and its atmosphere that passes through the atmosphere and into space. The greenhouse effect can be directly seen in graphs of Earth's outgoing longwave radiation as a function of frequency (or wavelength). The area between the curve for longwave radiation emitted by Earth's surface and the curve for outgoing longwave radiation indicates the size of the greenhouse effect. Different substances are responsible for reducing the radiation energy reaching space at different frequencies; for some frequencies, multiple substances play a role. Carbon dioxide is understood to be responsible for the dip in outgoing radiation (and associated rise in the greenhouse effect) at around 667 cm (equivalent to a wavelength of 15 microns). Each layer of the atmosphere with greenhouse gases absorbs some of the longwave radiation being radiated upwards from lower layers. It also emits longwave radiation in all directions, both upwards and downwards, in equilibrium with the amount it has absorbed. This results in less radiative heat loss and more warmth below. Increasing the concentration of the gases increases the amount of absorption and emission, and thereby causing more heat to be retained at the surface and in the layers below. The power of outgoing longwave radiation emitted by a planet corresponds to the effective temperature of the planet. The effective temperature is the temperature that a planet radiating with a uniform temperature (a blackbody) would need to have in order to radiate the same amount of energy. This concept may be used to compare the amount of longwave radiation emitted to space and the amount of longwave radiation emitted by the surface: Earth's surface temperature is often reported in terms of the average near-surface air temperature. This is about 15 °C (59 °F), a bit lower than the effective surface temperature. This value is 33 °C (59 °F) warmer than Earth's overall effective temperature. Energy flux is the rate of energy flow per unit area. Energy flux is expressed in units of W/m, which is the number of joules of energy that pass through a square meter each second. Most fluxes quoted in high-level discussions of climate are global values, which means they are the total flow of energy over the entire globe, divided by the surface area of the Earth, 5.1×10 m (5.1×10 km; 2.0×10 sq mi). The fluxes of radiation arriving at and leaving the Earth are important because radiative transfer is the only process capable of exchanging energy between Earth and the rest of the universe. The temperature of a planet depends on the balance between incoming radiation and outgoing radiation. If incoming radiation exceeds outgoing radiation, a planet will warm. If outgoing radiation exceeds incoming radiation, a planet will cool. A planet will tend towards a state of radiative equilibrium, in which the power of outgoing radiation equals the power of absorbed incoming radiation. Earth's energy imbalance is the amount by which the power of incoming sunlight absorbed by Earth's surface or atmosphere exceeds the power of outgoing longwave radiation emitted to space. Energy imbalance is the fundamental measurement that drives surface temperature. A UN presentation says "The EEI is the most critical number defining the prospects for continued global warming and climate change." One study argues, "The absolute value of EEI represents the most fundamental metric defining the status of global climate change." Earth's energy imbalance (EEI) was about 0.7 W/m as of around 2015, indicating that Earth as a whole is accumulating thermal energy and is in a process of becoming warmer. Over 90% of the retained energy goes into warming the oceans, with much smaller amounts going into heating the land, atmosphere, and ice. A simple picture assumes a steady state, but in the real world, the day/night (diurnal) cycle, as well as the seasonal cycle and weather disturbances, complicate matters. Solar heating applies only during daytime. At night the atmosphere cools somewhat, but not greatly because the thermal inertia of the climate system resists changes both day and night, as well as for longer periods. Diurnal temperature changes decrease with height in the atmosphere. In the lower portion of the atmosphere, the troposphere, the air temperature decreases (or "lapses") with increasing altitude. The rate at which temperature changes with altitude is called the lapse rate. On Earth, the air temperature decreases by about 6.5°C/km (3.6°F per 1000 ft), on average, although this varies. The temperature lapse is caused by convection. Air warmed by the surface rises. As it rises, air expands and cools. Simultaneously, other air descends, compresses, and warms. This process creates a vertical temperature gradient within the atmosphere. This vertical temperature gradient is essential to the greenhouse effect. If the lapse rate was zero (so that the atmospheric temperature did not vary with altitude and was the same as the surface temperature) then there would be no greenhouse effect (i.e., its value would be zero). Greenhouse gases make the atmosphere near Earth's surface mostly opaque to longwave radiation. The atmosphere only becomes transparent to longwave radiation at higher altitudes, where the air is less dense, there is less water vapor, and reduced pressure broadening of absorption lines limits the wavelengths that gas molecules can absorb. For any given wavelength, the longwave radiation that reaches space is emitted by a particular radiating layer of the atmosphere. The intensity of the emitted radiation is determined by the weighted average air temperature within that layer. So, for any given wavelength of radiation emitted to space, there is an associated effective emission temperature (or brightness temperature). A given wavelength of radiation may also be said to have an effective emission altitude, which is a weighted average of the altitudes within the radiating layer. The effective emission temperature and altitude vary by wavelength (or frequency). This phenomenon may be seen by examining plots of radiation emitted to space. Earth's surface radiates longwave radiation with wavelengths in the range of 4–100 microns. Greenhouse gases that were largely transparent to incoming solar radiation are more absorbent for some wavelengths in this range. The atmosphere near the Earth's surface is largely opaque to longwave radiation and most heat loss from the surface is by evaporation and convection. However radiative energy losses become increasingly important higher in the atmosphere, largely because of the decreasing concentration of water vapor, an important greenhouse gas. Rather than thinking of longwave radiation headed to space as coming from the surface itself, it is more realistic to think of this outgoing radiation as being emitted by a layer in the mid-troposphere, which is effectively coupled to the surface by a lapse rate. The difference in temperature between these two locations explains the difference between surface emissions and emissions to space, i.e., it explains the greenhouse effect. A greenhouse gas (GHG) is a gas which contributes to the trapping of heat by impeding the flow of longwave radiation out of a planet's atmosphere. Greenhouse gases contribute most of the greenhouse effect in Earth's energy budget. Gases which can absorb and emit longwave radiation are said to be infrared active and act as greenhouse gases. Most gases whose molecules have two different atoms (such as carbon monoxide, CO), and all gases with three or more atoms (including H2O and CO2), are infrared active and act as greenhouse gases. (Technically, this is because when these molecules vibrate, those vibrations modify the molecular dipole moment, or asymmetry in the distribution of electrical charge. See Infrared spectroscopy.) Gases with only one atom (such as argon, Ar) or with two identical atoms (such as nitrogen, N2, and oxygen, O2) are not infrared active. They are transparent to longwave radiation, and, for practical purposes, do not absorb or emit longwave radiation. (This is because their molecules are symmetrical and so do not have a dipole moment.) Such gases make up more than 99% of the dry atmosphere. Greenhouse gases absorb and emit longwave radiation within specific ranges of wavelengths (organized as spectral lines or bands). When greenhouse gases absorb radiation, they distribute the acquired energy to the surrounding air as thermal energy (i.e., kinetic energy of gas molecules). Energy is transferred from greenhouse gas molecules to other molecules via molecular collisions. Contrary to what is sometimes said, greenhouse gases do not "re-emit" photons after they are absorbed. Because each molecule experiences billions of collisions per second, any energy a greenhouse gas molecule receives by absorbing a photon will be redistributed to other molecules before there is a chance for a new photon to be emitted. In a separate process, greenhouse gases emit longwave radiation, at a rate determined by the air temperature. This thermal energy is either absorbed by other greenhouse gas molecules or leaves the atmosphere, cooling it. Effect on air: Air is warmed by latent heat (buoyant water vapor condensing into water droplets and releasing heat), thermals (warm air rising from below), and by sunlight being absorbed in the atmosphere. Air is cooled radiatively, by greenhouse gases and clouds emitting longwave thermal radiation. Within the troposphere, greenhouse gases typically have a net cooling effect on air, emitting more thermal radiation than they absorb. Warming and cooling of air are well balanced, on average, so that the atmosphere maintains a roughly stable average temperature. Effect on surface cooling: Longwave radiation flows both upward and downward due to absorption and emission in the atmosphere. These canceling energy flows reduce radiative surface cooling (net upward radiative energy flow). Latent heat transport and thermals provide non-radiative surface cooling which partially compensates for this reduction, but there is still a net reduction in surface cooling, for a given surface temperature. Effect on TOA energy balance: Greenhouse gases impact the top-of-atmosphere (TOA) energy budget by reducing the flux of longwave radiation emitted to space, for a given surface temperature. Thus, greenhouse gases alter the energy balance at TOA. This means that the surface temperature needs to be higher (than the planet's effective temperature, i.e., the temperature associated with emissions to space), in order for the outgoing energy emitted to space to balance the incoming energy from sunlight. It is important to focus on the top-of-atmosphere (TOA) energy budget (rather than the surface energy budget) when reasoning about the warming effect of greenhouse gases. Clouds and aerosols have both cooling effects, associated with reflecting sunlight back to space, and warming effects, associated with trapping thermal radiation. On average, clouds have a strong net cooling effect. However, the mix of cooling and warming effects varies, depending on detailed characteristics of particular clouds (including their type, height, and optical properties). Thin cirrus clouds can have a net warming effect. Clouds can absorb and emit infrared radiation and thus affect the radiative properties of the atmosphere. While the radiative forcing due to greenhouse gases may be determined to a reasonably high degree of accuracy... the uncertainties relating to aerosol radiative forcings remain large, and rely to a large extent on the estimates from global modeling studies that are difficult to verify at the present time. A given flux of thermal radiation has an associated effective radiating temperature or effective temperature. Effective temperature is the temperature that a black body (a perfect absorber/emitter) would need to be to emit that much thermal radiation. Thus, the overall effective temperature of a planet is given by where OLR is the average flux (power per unit area) of outgoing longwave radiation emitted to space and σ {\displaystyle \sigma } is the Stefan-Boltzmann constant. Similarly, the effective temperature of the surface is given by where SLR is the average flux of longwave radiation emitted by the surface. (OLR is a conventional abbreviation. SLR is used here to denote the flux of surface-emitted longwave radiation, although there is no standard abbreviation for this.) The IPCC reports the greenhouse effect, G, as being 159 W m, where G is the flux of longwave thermal radiation that leaves the surface minus the flux of outgoing longwave radiation that reaches space: Alternatively, the greenhouse effect can be described using the normalized greenhouse effect, g̃, defined as The normalized greenhouse effect is the fraction of the amount of thermal radiation emitted by the surface that does not reach space. Based on the IPCC numbers, g̃ = 0.40. In other words, 40 percent less thermal radiation reaches space than what leaves the surface. Sometimes the greenhouse effect is quantified as a temperature difference. This temperature difference is closely related to the quantities above. When the greenhouse effect is expressed as a temperature difference, Δ T G H E {\displaystyle \Delta T_{\mathrm {GHE} }} , this refers to the effective temperature associated with thermal radiation emissions from the surface minus the effective temperature associated with emissions to space: Informal discussions of the greenhouse effect often compare the actual surface temperature to the temperature that the planet would have if there were no greenhouse gases. However, in formal technical discussions, when the size of the greenhouse effect is quantified as a temperature, this is generally done using the above formula. The formula refers to the effective surface temperature rather than the actual surface temperature, and compares the surface with the top of the atmosphere, rather than comparing reality to a hypothetical situation. The temperature difference, Δ T G H E {\displaystyle \Delta T_{\mathrm {GHE} }} , indicates how much warmer a planet's surface is than the planet's overall effective temperature. Earth's top-of-atmosphere (TOA) energy imbalance (EEI) is the amount by which the power of incoming radiation exceeds the power of outgoing radiation: where ASR is the mean flux of absorbed solar radiation. ASR may be expanded as where A {\displaystyle A} is the albedo (reflectivity) of the planet and MSI is the mean solar irradiance incoming at the top of the atmosphere. The radiative equilibrium temperature of a planet can be expressed as A planet's temperature will tend to shift towards a state of radiative equilibrium, in which the TOA energy imbalance is zero, i.e., E E I = 0 {\displaystyle \mathrm {EEI} =0} . When the planet is in radiative equilibrium, the overall effective temperature of the planet is given by Thus, the concept of radiative equilibrium is important because it indicates what effective temperature a planet will tend towards having. If, in addition to knowing the effective temperature, T e f f {\displaystyle T_{\mathrm {eff} }} , we know the value of the greenhouse effect, then we know the mean (average) surface temperature of the planet. This is why the quantity known as the greenhouse effect is important: it is one of the few quantities that go into determining the planet's mean surface temperature. Typically, a planet will be close to radiative equilibrium, with the rates of incoming and outgoing energy being well-balanced. Under such conditions, the planet's equilibrium temperature is determined by the mean solar irradiance and the planetary albedo (how much sunlight is reflected back to space instead of being absorbed). The greenhouse effect measures how much warmer the surface is than the overall effective temperature of the planet. So, the effective surface temperature, T s u r f a c e , e f f {\displaystyle T_{\mathrm {surface,eff} }} , is, using the definition of Δ T G H E {\displaystyle \Delta T_{\mathrm {GHE} }} , One could also express the relationship between T s u r f a c e , e f f {\displaystyle T_{\mathrm {surface,eff} }} and T e f f {\displaystyle T_{\mathrm {eff} }} using G or g̃. So, the principle that a larger greenhouse effect corresponds to a higher surface temperature, if everything else (i.e., the factors that determine T e f f {\displaystyle T_{\mathrm {eff} }} ) is held fixed, is true as a matter of definition. Note that the greenhouse effect influences the temperature of the planet as a whole, in tandem with the planet's tendency to move toward radiative equilibrium. There are sometimes misunderstandings about how the greenhouse effect functions and raises temperatures. The surface budget fallacy is a common error in thinking. It involves thinking that an increased CO2 concentration could only cause warming by increasing the downward thermal radiation to the surface, as a result of making the atmosphere a better emitter. If the atmosphere near the surface is already nearly opaque to thermal radiation, this would mean that increasing CO2 could not lead to higher temperatures. However, it is a mistake to focus on the surface energy budget rather than the top-of-atmosphere energy budget. Regardless of what happens at the surface, increasing the concentration of CO2 tends to reduce the thermal radiation reaching space (OLR), leading to a TOA energy imbalance that leads to warming. Earlier researchers like Callendar (1938) and Plass (1959) focused on the surface budget, but the work of Manabe in the 1960s clarified the importance of the top-of-atmosphere energy budget. Among those who do not believe in the greenhouse effect, there is a fallacy that the greenhouse effect involves greenhouse gases sending heat from the cool atmosphere to the planet's warm surface, in violation of the Second Law of Thermodynamics. However, this idea reflects a misunderstanding. Radiation heat flow is the net energy flow after the flows of radiation in both directions have been taken into account. Radiation heat flow occurs in the direction from the surface to the atmosphere and space, as is to be expected given that the surface is warmer than the atmosphere and space. While greenhouse gases emit thermal radiation downward to the surface, this is part of the normal process of radiation heat transfer. The downward thermal radiation simply reduces the upward thermal radiation net energy flow (radiation heat flow), i.e., it reduces cooling. Simplified models are sometimes used to support understanding of how the greenhouse effect comes about and how this affects surface temperature. The greenhouse effect can be seen to occur in a simplified model in which the air is treated as if it is single uniform layer exchanging radiation with the ground and space. Slightly more complex models add additional layers, or introduce convection. One simplification is to treat all outgoing longwave radiation as being emitted from an altitude where the air temperature equals the overall effective temperature for planetary emissions, T e f f {\displaystyle T_{\mathrm {eff} }} . Some authors have referred to this altitude as the effective radiating level (ERL), and suggest that as the CO2 concentration increases, the ERL must rise to maintain the same mass of CO2 above that level. This approach is less accurate than accounting for variation in radiation wavelength by emission altitude. However, it can be useful in supporting a simplified understanding of the greenhouse effect. For instance, it can be used to explain how the greenhouse effect increases as the concentration of greenhouse gases increase. Earth's overall equivalent emission altitude has been increasing with a trend of 23 m (75 ft)/decade, which is said to be consistent with a global mean surface warming of 0.12 °C (0.22 °F)/decade over the period 1979–2011. The existence of the greenhouse effect, while not named as such, was proposed as early as 1824 by Joseph Fourier. The argument and the evidence were further strengthened by Claude Pouillet in 1827 and 1838. In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxide. She concluded that "An atmosphere of that gas would give to our earth a high temperature..." John Tyndall was the first to measure the infrared absorption and emission of various gases and vapors. From 1859 onwards, he showed that the effect was due to a very small proportion of the atmosphere, with the main gases having no effect, and was largely due to water vapor, though small percentages of hydrocarbons and carbon dioxide had a significant effect. The effect was more fully quantified by Svante Arrhenius in 1896, who made the first quantitative prediction of global warming due to a hypothetical doubling of atmospheric carbon dioxide. The term greenhouse was first applied to this phenomenon by Nils Gustaf Ekholm in 1901. Scientists have observed that, at times, there is a negative greenhouse effect over parts of Antarctica. In a location where there is a strong temperature inversion, so that the air is warmer than the surface, it is possible for the greenhouse effect to be reversed, so that the presence of greenhouse gases increases the rate of radiative cooling to space. In this case, the rate of thermal radiation emission to space is greater than the rate at which thermal radiation is emitted by the surface. Thus, the local value of the greenhouse effect is negative. In the solar system, apart from the Earth, at least two other planets and a moon also have a greenhouse effect. The greenhouse effect on Venus is particularly large, and it brings the surface temperature to as high as 735 K (462 °C; 863 °F). This is due to its very dense atmosphere which consists of about 97% carbon dioxide. Although Venus is about 30% closer to the Sun, it absorbs (and is warmed by) less sunlight than Earth, because Venus reflects 77% of incident sunlight while Earth reflects around 30%. In the absence of a greenhouse effect, the surface of Venus would be expected to have a temperature of 232 K (−41 °C; −42 °F). Thus, contrary to what one might think, being nearer to the Sun is not a reason why Venus is warmer than Earth. Due to its high pressure, the CO2 in the atmosphere of Venus exhibits continuum absorption (absorption over a broad range of wavelengths) and is not limited to absorption within the bands relevant to its absorption on Earth. A runaway greenhouse effect involving carbon dioxide and water vapor has for many years been hypothesized to have occurred on Venus; this idea is still largely accepted. The planet Venus experienced a runaway greenhouse effect, resulting in an atmosphere which is 96% carbon dioxide, and a surface atmospheric pressure roughly the same as found 900 m (3,000 ft) underwater on Earth. Venus may have had water oceans, but they would have boiled off as the mean surface temperature rose to the current 735 K (462 °C; 863 °F). Mars has about 70 times as much carbon dioxide as Earth, but experiences only a small greenhouse effect, about 6 K (11 °F). The greenhouse effect is small due to the lack of water vapor and the overall thinness of the atmosphere. The same radiative transfer calculations that predict warming on Earth accurately explain the temperature on Mars, given its atmospheric composition. Saturn's moon Titan has both a greenhouse effect and an anti-greenhouse effect. The presence of nitrogen (N2), methane (CH4), and hydrogen (H2) in the atmosphere contribute to a greenhouse effect, increasing the surface temperature by 21 K (38 °F) over the expected temperature of the body without these gases. While the gases N2 and H2 ordinarily do not absorb infrared radiation, these gases absorb thermal radiation on Titan due to pressure-induced collisions, the large mass and thickness of the atmosphere, and the long wavelengths of the thermal radiation from the cold surface. The existence of a high-altitude haze, which absorbs wavelengths of solar radiation but is transparent to infrared, contribute to an anti-greenhouse effect of approximately 9 K (16 °F). The net result of these two effects is a warming of 21 K − 9 K = 12 K (22 °F), so Titan's surface temperature of 94 K (−179 °C; −290 °F) is 12 K warmer than it would be if there were no atmosphere. One cannot predict the relative sizes of the greenhouse effects on different bodies simply by comparing the amount of greenhouse gases in their atmospheres. This is because factors other than the quantity of these gases also play a role in determining the size of the greenhouse effect. Overall atmospheric pressure affects how much thermal radiation each molecule of a greenhouse gas can absorb. High pressure leads to more absorption and low pressure leads to less. This is due to "pressure broadening" of spectral lines. When the total atmospheric pressure is higher, collisions between molecules occur at a higher rate. Collisions broaden the width of absorption lines, allowing a greenhouse gas to absorb thermal radiation over a broader range of wavelengths. Each molecule in the air near Earth's surface experiences about 7 billion collisions per second. This rate is lower at higher altitudes, where the pressure and temperature are both lower. This means that greenhouse gases are able to absorb more wavelengths in the lower atmosphere than they can in the upper atmosphere. On other planets, pressure broadening means that each molecule of a greenhouse gas is more effective at trapping thermal radiation if the total atmospheric pressure is high (as on Venus), and less effective at trapping thermal radiation if the atmospheric pressure is low (as on Mars).
[ { "paragraph_id": 0, "text": "The greenhouse effect occurs when greenhouse gases in a planet's atmosphere trap some of the heat radiated from the planet's surface, raising its temperature. This process happens because stars emit shortwave radiation that passes through greenhouse gases, but planets emit longwave radiation that is partly absorbed by greenhouse gases. That difference reduces the rate at which a planet can cool off in response to being warmed by its host star. Adding to greenhouse gases further reduces the rate a planet emits radiation to space, raising its average surface temperature.", "title": "" }, { "paragraph_id": 1, "text": "The Earth's average surface temperature would be about −18 °C (−0.4 °F) without the greenhouse effect, compared to Earth's 20th century average of about 14 °C (57 °F), or a more recent average of about 15 °C (59 °F). In addition to naturally present greenhouse gases, burning of fossil fuels has increased amounts of carbon dioxide and methane in the atmosphere. As a result, global warming of about 1.2 °C (2.2 °F) has occurred since the industrial revolution, with the global average surface temperature increasing at a rate of 0.18 °C (0.32 °F) per decade since 1981.", "title": "" }, { "paragraph_id": 2, "text": "The wavelengths of radiation emitted by the Sun and Earth differ because their surface temperatures are different. The Sun has a surface temperature of 5,500 °C (9,900 °F), so it emits most of its energy as shortwave radiation in near-infrared and visible wavelengths (as sunlight). In contrast, Earth's surface has a much lower temperature, so it emits longwave radiation at mid- and far-infrared wavelengths (sometimes called thermal radiation or radiated heat). A gas is a greenhouse gas if it absorbs longwave radiation. Earth's atmosphere absorbs only 23% of incoming shortwave radiation, but absorbs 90% of the longwave radiation emitted by the surface, thus accumulating energy and warming the Earth's surface.", "title": "" }, { "paragraph_id": 3, "text": "The existence of the greenhouse effect, while not named as such, was proposed as early as 1824 by Joseph Fourier. The argument and the evidence were further strengthened by Claude Pouillet in 1827 and 1838. In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxide. The term greenhouse was first applied to this phenomenon by Nils Gustaf Ekholm in 1901.", "title": "" }, { "paragraph_id": 4, "text": "The greenhouse effect on Earth is defined as: \"The infrared radiative effect of all infrared absorbing constituents in the atmosphere. Greenhouse gases (GHGs), clouds, and some aerosols absorb terrestrial radiation emitted by the Earth’s surface and elsewhere in the atmosphere.\"", "title": "Definition" }, { "paragraph_id": 5, "text": "The enhanced greenhouse effect describes the fact that by increasing the concentration of GHGs in the atmosphere (due to human action), the natural greenhouse effect is increased.", "title": "Definition" }, { "paragraph_id": 6, "text": "The term greenhouse effect comes from an analogy to greenhouses. Both greenhouses and the greenhouse effect work by retaining heat from sunlight, but the way they retain heat differs. Greenhouses retain heat mainly by blocking convection (the movement of air). In contrast, the greenhouse effect retains heat by restricting radiative transfer through the air and reducing the rate at which heat escapes to space.", "title": "Terminology" }, { "paragraph_id": 7, "text": "Matter emits thermal radiation in an amount that is directly proportional to the fourth power of its temperature. Some of the radiation emitted by the Earth's surface is absorbed by greenhouse gases and clouds. Without this absorption, Earth's surface would have an average temperature of −18 °C (−0.4 °F). However, because some of the radiation is absorbed, Earth's average surface temperature is around 15 °C (59 °F). Thus, the Earth's greenhouse effect may be measured as a temperature change of 33 °C (59 °F).", "title": "Measurement" }, { "paragraph_id": 8, "text": "Thermal radiation is characterized by how much energy it carries, typically in watts per square meter (W/m). Scientists also measure the greenhouse effect based on how much more longwave thermal radiation leaves the Earth's surface than reaches space. Currently, longwave radiation leaves the surface at an average rate of 398 W/m, but only 239 W/m reaches space. Thus, the Earth's greenhouse effect can also be measured as an energy flow change of 159 W/m. The greenhouse effect can be expressed as a fraction (0.40) or percentage (40%) of the longwave thermal radiation that leaves Earth's surface but does not reach space.", "title": "Measurement" }, { "paragraph_id": 9, "text": "Whether the greenhouse effect is expressed as a change in temperature or as a change in longwave thermal radiation, the same effect is being measured.", "title": "Measurement" }, { "paragraph_id": 10, "text": "Strengthening of the greenhouse effect through additional greenhouse gases from human activities is known as the enhanced greenhouse effect. As well as being inferred from measurements by ARGO, CERES and other instruments throughout the 21st century, this increase in radiative forcing from human activity has been observed directly, and is attributable mainly to increased atmospheric carbon dioxide levels.", "title": "Role in climate change" }, { "paragraph_id": 11, "text": "CO2 is produced by fossil fuel burning and other activities such as cement production and tropical deforestation. Measurements of CO2 from the Mauna Loa Observatory show that concentrations have increased from about 313 parts per million (ppm) in 1960, passing the 400 ppm milestone in 2013. The current observed amount of CO2 exceeds the geological record maxima (≈300 ppm) from ice core data.", "title": "Role in climate change" }, { "paragraph_id": 12, "text": "Over the past 800,000 years, ice core data shows that carbon dioxide has varied from values as low as 180 ppm to the pre-industrial level of 270 ppm. Paleoclimatologists consider variations in carbon dioxide concentration to be a fundamental factor influencing climate variations over this time scale.", "title": "Role in climate change" }, { "paragraph_id": 13, "text": "Hotter matter emits shorter wavelengths of radiation. As a result, the Sun emits shortwave radiation as sunlight while the Earth and its atmosphere emit longwave radiation. Sunlight includes ultraviolet, visible light, and near-infrared radiation.", "title": "Energy balance and temperature" }, { "paragraph_id": 14, "text": "Sunlight is reflected and absorbed by the Earth and its atmosphere. The atmosphere and clouds reflect about 23% and absorb 23%. The surface reflects 7% and absorbs 48%. Overall, Earth reflects about 30% of the incoming sunlight, and absorbs the rest (240 W/m).", "title": "Energy balance and temperature" }, { "paragraph_id": 15, "text": "The Earth and its atmosphere emit longwave radiation, also known as thermal infrared or terrestrial radiation. Informally, longwave radiation is sometimes called thermal radiation. Outgoing longwave radiation (OLR) is the radiation from Earth and its atmosphere that passes through the atmosphere and into space.", "title": "Energy balance and temperature" }, { "paragraph_id": 16, "text": "The greenhouse effect can be directly seen in graphs of Earth's outgoing longwave radiation as a function of frequency (or wavelength). The area between the curve for longwave radiation emitted by Earth's surface and the curve for outgoing longwave radiation indicates the size of the greenhouse effect.", "title": "Energy balance and temperature" }, { "paragraph_id": 17, "text": "Different substances are responsible for reducing the radiation energy reaching space at different frequencies; for some frequencies, multiple substances play a role. Carbon dioxide is understood to be responsible for the dip in outgoing radiation (and associated rise in the greenhouse effect) at around 667 cm (equivalent to a wavelength of 15 microns).", "title": "Energy balance and temperature" }, { "paragraph_id": 18, "text": "Each layer of the atmosphere with greenhouse gases absorbs some of the longwave radiation being radiated upwards from lower layers. It also emits longwave radiation in all directions, both upwards and downwards, in equilibrium with the amount it has absorbed. This results in less radiative heat loss and more warmth below. Increasing the concentration of the gases increases the amount of absorption and emission, and thereby causing more heat to be retained at the surface and in the layers below.", "title": "Energy balance and temperature" }, { "paragraph_id": 19, "text": "The power of outgoing longwave radiation emitted by a planet corresponds to the effective temperature of the planet. The effective temperature is the temperature that a planet radiating with a uniform temperature (a blackbody) would need to have in order to radiate the same amount of energy.", "title": "Energy balance and temperature" }, { "paragraph_id": 20, "text": "This concept may be used to compare the amount of longwave radiation emitted to space and the amount of longwave radiation emitted by the surface:", "title": "Energy balance and temperature" }, { "paragraph_id": 21, "text": "Earth's surface temperature is often reported in terms of the average near-surface air temperature. This is about 15 °C (59 °F), a bit lower than the effective surface temperature. This value is 33 °C (59 °F) warmer than Earth's overall effective temperature.", "title": "Energy balance and temperature" }, { "paragraph_id": 22, "text": "Energy flux is the rate of energy flow per unit area. Energy flux is expressed in units of W/m, which is the number of joules of energy that pass through a square meter each second. Most fluxes quoted in high-level discussions of climate are global values, which means they are the total flow of energy over the entire globe, divided by the surface area of the Earth, 5.1×10 m (5.1×10 km; 2.0×10 sq mi).", "title": "Energy balance and temperature" }, { "paragraph_id": 23, "text": "The fluxes of radiation arriving at and leaving the Earth are important because radiative transfer is the only process capable of exchanging energy between Earth and the rest of the universe.", "title": "Energy balance and temperature" }, { "paragraph_id": 24, "text": "The temperature of a planet depends on the balance between incoming radiation and outgoing radiation. If incoming radiation exceeds outgoing radiation, a planet will warm. If outgoing radiation exceeds incoming radiation, a planet will cool. A planet will tend towards a state of radiative equilibrium, in which the power of outgoing radiation equals the power of absorbed incoming radiation.", "title": "Energy balance and temperature" }, { "paragraph_id": 25, "text": "Earth's energy imbalance is the amount by which the power of incoming sunlight absorbed by Earth's surface or atmosphere exceeds the power of outgoing longwave radiation emitted to space. Energy imbalance is the fundamental measurement that drives surface temperature. A UN presentation says \"The EEI is the most critical number defining the prospects for continued global warming and climate change.\" One study argues, \"The absolute value of EEI represents the most fundamental metric defining the status of global climate change.\"", "title": "Energy balance and temperature" }, { "paragraph_id": 26, "text": "Earth's energy imbalance (EEI) was about 0.7 W/m as of around 2015, indicating that Earth as a whole is accumulating thermal energy and is in a process of becoming warmer.", "title": "Energy balance and temperature" }, { "paragraph_id": 27, "text": "Over 90% of the retained energy goes into warming the oceans, with much smaller amounts going into heating the land, atmosphere, and ice.", "title": "Energy balance and temperature" }, { "paragraph_id": 28, "text": "A simple picture assumes a steady state, but in the real world, the day/night (diurnal) cycle, as well as the seasonal cycle and weather disturbances, complicate matters. Solar heating applies only during daytime. At night the atmosphere cools somewhat, but not greatly because the thermal inertia of the climate system resists changes both day and night, as well as for longer periods. Diurnal temperature changes decrease with height in the atmosphere.", "title": "Energy balance and temperature" }, { "paragraph_id": 29, "text": "In the lower portion of the atmosphere, the troposphere, the air temperature decreases (or \"lapses\") with increasing altitude. The rate at which temperature changes with altitude is called the lapse rate.", "title": "Effect of lapse rate" }, { "paragraph_id": 30, "text": "On Earth, the air temperature decreases by about 6.5°C/km (3.6°F per 1000 ft), on average, although this varies.", "title": "Effect of lapse rate" }, { "paragraph_id": 31, "text": "The temperature lapse is caused by convection. Air warmed by the surface rises. As it rises, air expands and cools. Simultaneously, other air descends, compresses, and warms. This process creates a vertical temperature gradient within the atmosphere.", "title": "Effect of lapse rate" }, { "paragraph_id": 32, "text": "This vertical temperature gradient is essential to the greenhouse effect. If the lapse rate was zero (so that the atmospheric temperature did not vary with altitude and was the same as the surface temperature) then there would be no greenhouse effect (i.e., its value would be zero).", "title": "Effect of lapse rate" }, { "paragraph_id": 33, "text": "Greenhouse gases make the atmosphere near Earth's surface mostly opaque to longwave radiation. The atmosphere only becomes transparent to longwave radiation at higher altitudes, where the air is less dense, there is less water vapor, and reduced pressure broadening of absorption lines limits the wavelengths that gas molecules can absorb.", "title": "Effect of lapse rate" }, { "paragraph_id": 34, "text": "For any given wavelength, the longwave radiation that reaches space is emitted by a particular radiating layer of the atmosphere. The intensity of the emitted radiation is determined by the weighted average air temperature within that layer. So, for any given wavelength of radiation emitted to space, there is an associated effective emission temperature (or brightness temperature).", "title": "Effect of lapse rate" }, { "paragraph_id": 35, "text": "A given wavelength of radiation may also be said to have an effective emission altitude, which is a weighted average of the altitudes within the radiating layer.", "title": "Effect of lapse rate" }, { "paragraph_id": 36, "text": "The effective emission temperature and altitude vary by wavelength (or frequency). This phenomenon may be seen by examining plots of radiation emitted to space.", "title": "Effect of lapse rate" }, { "paragraph_id": 37, "text": "Earth's surface radiates longwave radiation with wavelengths in the range of 4–100 microns. Greenhouse gases that were largely transparent to incoming solar radiation are more absorbent for some wavelengths in this range.", "title": "Effect of lapse rate" }, { "paragraph_id": 38, "text": "The atmosphere near the Earth's surface is largely opaque to longwave radiation and most heat loss from the surface is by evaporation and convection. However radiative energy losses become increasingly important higher in the atmosphere, largely because of the decreasing concentration of water vapor, an important greenhouse gas.", "title": "Effect of lapse rate" }, { "paragraph_id": 39, "text": "Rather than thinking of longwave radiation headed to space as coming from the surface itself, it is more realistic to think of this outgoing radiation as being emitted by a layer in the mid-troposphere, which is effectively coupled to the surface by a lapse rate. The difference in temperature between these two locations explains the difference between surface emissions and emissions to space, i.e., it explains the greenhouse effect.", "title": "Effect of lapse rate" }, { "paragraph_id": 40, "text": "A greenhouse gas (GHG) is a gas which contributes to the trapping of heat by impeding the flow of longwave radiation out of a planet's atmosphere. Greenhouse gases contribute most of the greenhouse effect in Earth's energy budget.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 41, "text": "Gases which can absorb and emit longwave radiation are said to be infrared active and act as greenhouse gases.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 42, "text": "Most gases whose molecules have two different atoms (such as carbon monoxide, CO), and all gases with three or more atoms (including H2O and CO2), are infrared active and act as greenhouse gases. (Technically, this is because when these molecules vibrate, those vibrations modify the molecular dipole moment, or asymmetry in the distribution of electrical charge. See Infrared spectroscopy.)", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 43, "text": "Gases with only one atom (such as argon, Ar) or with two identical atoms (such as nitrogen, N2, and oxygen, O2) are not infrared active. They are transparent to longwave radiation, and, for practical purposes, do not absorb or emit longwave radiation. (This is because their molecules are symmetrical and so do not have a dipole moment.) Such gases make up more than 99% of the dry atmosphere.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 44, "text": "Greenhouse gases absorb and emit longwave radiation within specific ranges of wavelengths (organized as spectral lines or bands).", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 45, "text": "When greenhouse gases absorb radiation, they distribute the acquired energy to the surrounding air as thermal energy (i.e., kinetic energy of gas molecules). Energy is transferred from greenhouse gas molecules to other molecules via molecular collisions.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 46, "text": "Contrary to what is sometimes said, greenhouse gases do not \"re-emit\" photons after they are absorbed. Because each molecule experiences billions of collisions per second, any energy a greenhouse gas molecule receives by absorbing a photon will be redistributed to other molecules before there is a chance for a new photon to be emitted.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 47, "text": "In a separate process, greenhouse gases emit longwave radiation, at a rate determined by the air temperature. This thermal energy is either absorbed by other greenhouse gas molecules or leaves the atmosphere, cooling it.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 48, "text": "Effect on air: Air is warmed by latent heat (buoyant water vapor condensing into water droplets and releasing heat), thermals (warm air rising from below), and by sunlight being absorbed in the atmosphere. Air is cooled radiatively, by greenhouse gases and clouds emitting longwave thermal radiation. Within the troposphere, greenhouse gases typically have a net cooling effect on air, emitting more thermal radiation than they absorb. Warming and cooling of air are well balanced, on average, so that the atmosphere maintains a roughly stable average temperature.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 49, "text": "Effect on surface cooling: Longwave radiation flows both upward and downward due to absorption and emission in the atmosphere. These canceling energy flows reduce radiative surface cooling (net upward radiative energy flow). Latent heat transport and thermals provide non-radiative surface cooling which partially compensates for this reduction, but there is still a net reduction in surface cooling, for a given surface temperature.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 50, "text": "Effect on TOA energy balance: Greenhouse gases impact the top-of-atmosphere (TOA) energy budget by reducing the flux of longwave radiation emitted to space, for a given surface temperature. Thus, greenhouse gases alter the energy balance at TOA. This means that the surface temperature needs to be higher (than the planet's effective temperature, i.e., the temperature associated with emissions to space), in order for the outgoing energy emitted to space to balance the incoming energy from sunlight. It is important to focus on the top-of-atmosphere (TOA) energy budget (rather than the surface energy budget) when reasoning about the warming effect of greenhouse gases.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 51, "text": "Clouds and aerosols have both cooling effects, associated with reflecting sunlight back to space, and warming effects, associated with trapping thermal radiation.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 52, "text": "On average, clouds have a strong net cooling effect. However, the mix of cooling and warming effects varies, depending on detailed characteristics of particular clouds (including their type, height, and optical properties). Thin cirrus clouds can have a net warming effect. Clouds can absorb and emit infrared radiation and thus affect the radiative properties of the atmosphere.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 53, "text": "While the radiative forcing due to greenhouse gases may be determined to a reasonably high degree of accuracy... the uncertainties relating to aerosol radiative forcings remain large, and rely to a large extent on the estimates from global modeling studies that are difficult to verify at the present time.", "title": "Infrared absorbing constituents in the atmosphere" }, { "paragraph_id": 54, "text": "A given flux of thermal radiation has an associated effective radiating temperature or effective temperature. Effective temperature is the temperature that a black body (a perfect absorber/emitter) would need to be to emit that much thermal radiation. Thus, the overall effective temperature of a planet is given by", "title": "Basic formulas" }, { "paragraph_id": 55, "text": "where OLR is the average flux (power per unit area) of outgoing longwave radiation emitted to space and σ {\\displaystyle \\sigma } is the Stefan-Boltzmann constant. Similarly, the effective temperature of the surface is given by", "title": "Basic formulas" }, { "paragraph_id": 56, "text": "where SLR is the average flux of longwave radiation emitted by the surface. (OLR is a conventional abbreviation. SLR is used here to denote the flux of surface-emitted longwave radiation, although there is no standard abbreviation for this.)", "title": "Basic formulas" }, { "paragraph_id": 57, "text": "The IPCC reports the greenhouse effect, G, as being 159 W m, where G is the flux of longwave thermal radiation that leaves the surface minus the flux of outgoing longwave radiation that reaches space:", "title": "Basic formulas" }, { "paragraph_id": 58, "text": "Alternatively, the greenhouse effect can be described using the normalized greenhouse effect, g̃, defined as", "title": "Basic formulas" }, { "paragraph_id": 59, "text": "The normalized greenhouse effect is the fraction of the amount of thermal radiation emitted by the surface that does not reach space. Based on the IPCC numbers, g̃ = 0.40. In other words, 40 percent less thermal radiation reaches space than what leaves the surface.", "title": "Basic formulas" }, { "paragraph_id": 60, "text": "Sometimes the greenhouse effect is quantified as a temperature difference. This temperature difference is closely related to the quantities above.", "title": "Basic formulas" }, { "paragraph_id": 61, "text": "When the greenhouse effect is expressed as a temperature difference, Δ T G H E {\\displaystyle \\Delta T_{\\mathrm {GHE} }} , this refers to the effective temperature associated with thermal radiation emissions from the surface minus the effective temperature associated with emissions to space:", "title": "Basic formulas" }, { "paragraph_id": 62, "text": "Informal discussions of the greenhouse effect often compare the actual surface temperature to the temperature that the planet would have if there were no greenhouse gases. However, in formal technical discussions, when the size of the greenhouse effect is quantified as a temperature, this is generally done using the above formula. The formula refers to the effective surface temperature rather than the actual surface temperature, and compares the surface with the top of the atmosphere, rather than comparing reality to a hypothetical situation.", "title": "Basic formulas" }, { "paragraph_id": 63, "text": "The temperature difference, Δ T G H E {\\displaystyle \\Delta T_{\\mathrm {GHE} }} , indicates how much warmer a planet's surface is than the planet's overall effective temperature.", "title": "Basic formulas" }, { "paragraph_id": 64, "text": "Earth's top-of-atmosphere (TOA) energy imbalance (EEI) is the amount by which the power of incoming radiation exceeds the power of outgoing radiation:", "title": "Basic formulas" }, { "paragraph_id": 65, "text": "where ASR is the mean flux of absorbed solar radiation. ASR may be expanded as", "title": "Basic formulas" }, { "paragraph_id": 66, "text": "where A {\\displaystyle A} is the albedo (reflectivity) of the planet and MSI is the mean solar irradiance incoming at the top of the atmosphere.", "title": "Basic formulas" }, { "paragraph_id": 67, "text": "The radiative equilibrium temperature of a planet can be expressed as", "title": "Basic formulas" }, { "paragraph_id": 68, "text": "A planet's temperature will tend to shift towards a state of radiative equilibrium, in which the TOA energy imbalance is zero, i.e., E E I = 0 {\\displaystyle \\mathrm {EEI} =0} . When the planet is in radiative equilibrium, the overall effective temperature of the planet is given by", "title": "Basic formulas" }, { "paragraph_id": 69, "text": "Thus, the concept of radiative equilibrium is important because it indicates what effective temperature a planet will tend towards having.", "title": "Basic formulas" }, { "paragraph_id": 70, "text": "If, in addition to knowing the effective temperature, T e f f {\\displaystyle T_{\\mathrm {eff} }} , we know the value of the greenhouse effect, then we know the mean (average) surface temperature of the planet.", "title": "Basic formulas" }, { "paragraph_id": 71, "text": "This is why the quantity known as the greenhouse effect is important: it is one of the few quantities that go into determining the planet's mean surface temperature.", "title": "Basic formulas" }, { "paragraph_id": 72, "text": "Typically, a planet will be close to radiative equilibrium, with the rates of incoming and outgoing energy being well-balanced. Under such conditions, the planet's equilibrium temperature is determined by the mean solar irradiance and the planetary albedo (how much sunlight is reflected back to space instead of being absorbed).", "title": "Basic formulas" }, { "paragraph_id": 73, "text": "The greenhouse effect measures how much warmer the surface is than the overall effective temperature of the planet. So, the effective surface temperature, T s u r f a c e , e f f {\\displaystyle T_{\\mathrm {surface,eff} }} , is, using the definition of Δ T G H E {\\displaystyle \\Delta T_{\\mathrm {GHE} }} ,", "title": "Basic formulas" }, { "paragraph_id": 74, "text": "One could also express the relationship between T s u r f a c e , e f f {\\displaystyle T_{\\mathrm {surface,eff} }} and T e f f {\\displaystyle T_{\\mathrm {eff} }} using G or g̃.", "title": "Basic formulas" }, { "paragraph_id": 75, "text": "So, the principle that a larger greenhouse effect corresponds to a higher surface temperature, if everything else (i.e., the factors that determine T e f f {\\displaystyle T_{\\mathrm {eff} }} ) is held fixed, is true as a matter of definition.", "title": "Basic formulas" }, { "paragraph_id": 76, "text": "Note that the greenhouse effect influences the temperature of the planet as a whole, in tandem with the planet's tendency to move toward radiative equilibrium.", "title": "Basic formulas" }, { "paragraph_id": 77, "text": "There are sometimes misunderstandings about how the greenhouse effect functions and raises temperatures.", "title": "Misconceptions" }, { "paragraph_id": 78, "text": "The surface budget fallacy is a common error in thinking. It involves thinking that an increased CO2 concentration could only cause warming by increasing the downward thermal radiation to the surface, as a result of making the atmosphere a better emitter. If the atmosphere near the surface is already nearly opaque to thermal radiation, this would mean that increasing CO2 could not lead to higher temperatures. However, it is a mistake to focus on the surface energy budget rather than the top-of-atmosphere energy budget. Regardless of what happens at the surface, increasing the concentration of CO2 tends to reduce the thermal radiation reaching space (OLR), leading to a TOA energy imbalance that leads to warming. Earlier researchers like Callendar (1938) and Plass (1959) focused on the surface budget, but the work of Manabe in the 1960s clarified the importance of the top-of-atmosphere energy budget.", "title": "Misconceptions" }, { "paragraph_id": 79, "text": "Among those who do not believe in the greenhouse effect, there is a fallacy that the greenhouse effect involves greenhouse gases sending heat from the cool atmosphere to the planet's warm surface, in violation of the Second Law of Thermodynamics. However, this idea reflects a misunderstanding. Radiation heat flow is the net energy flow after the flows of radiation in both directions have been taken into account. Radiation heat flow occurs in the direction from the surface to the atmosphere and space, as is to be expected given that the surface is warmer than the atmosphere and space. While greenhouse gases emit thermal radiation downward to the surface, this is part of the normal process of radiation heat transfer. The downward thermal radiation simply reduces the upward thermal radiation net energy flow (radiation heat flow), i.e., it reduces cooling.", "title": "Misconceptions" }, { "paragraph_id": 80, "text": "Simplified models are sometimes used to support understanding of how the greenhouse effect comes about and how this affects surface temperature.", "title": "Simplified models" }, { "paragraph_id": 81, "text": "The greenhouse effect can be seen to occur in a simplified model in which the air is treated as if it is single uniform layer exchanging radiation with the ground and space. Slightly more complex models add additional layers, or introduce convection.", "title": "Simplified models" }, { "paragraph_id": 82, "text": "One simplification is to treat all outgoing longwave radiation as being emitted from an altitude where the air temperature equals the overall effective temperature for planetary emissions, T e f f {\\displaystyle T_{\\mathrm {eff} }} . Some authors have referred to this altitude as the effective radiating level (ERL), and suggest that as the CO2 concentration increases, the ERL must rise to maintain the same mass of CO2 above that level.", "title": "Simplified models" }, { "paragraph_id": 83, "text": "This approach is less accurate than accounting for variation in radiation wavelength by emission altitude. However, it can be useful in supporting a simplified understanding of the greenhouse effect. For instance, it can be used to explain how the greenhouse effect increases as the concentration of greenhouse gases increase.", "title": "Simplified models" }, { "paragraph_id": 84, "text": "Earth's overall equivalent emission altitude has been increasing with a trend of 23 m (75 ft)/decade, which is said to be consistent with a global mean surface warming of 0.12 °C (0.22 °F)/decade over the period 1979–2011.", "title": "Simplified models" }, { "paragraph_id": 85, "text": "The existence of the greenhouse effect, while not named as such, was proposed as early as 1824 by Joseph Fourier. The argument and the evidence were further strengthened by Claude Pouillet in 1827 and 1838. In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxide. She concluded that \"An atmosphere of that gas would give to our earth a high temperature...\"", "title": "History" }, { "paragraph_id": 86, "text": "John Tyndall was the first to measure the infrared absorption and emission of various gases and vapors. From 1859 onwards, he showed that the effect was due to a very small proportion of the atmosphere, with the main gases having no effect, and was largely due to water vapor, though small percentages of hydrocarbons and carbon dioxide had a significant effect. The effect was more fully quantified by Svante Arrhenius in 1896, who made the first quantitative prediction of global warming due to a hypothetical doubling of atmospheric carbon dioxide. The term greenhouse was first applied to this phenomenon by Nils Gustaf Ekholm in 1901.", "title": "History" }, { "paragraph_id": 87, "text": "Scientists have observed that, at times, there is a negative greenhouse effect over parts of Antarctica. In a location where there is a strong temperature inversion, so that the air is warmer than the surface, it is possible for the greenhouse effect to be reversed, so that the presence of greenhouse gases increases the rate of radiative cooling to space. In this case, the rate of thermal radiation emission to space is greater than the rate at which thermal radiation is emitted by the surface. Thus, the local value of the greenhouse effect is negative.", "title": "Related effects on Earth" }, { "paragraph_id": 88, "text": "In the solar system, apart from the Earth, at least two other planets and a moon also have a greenhouse effect.", "title": "Bodies other than Earth" }, { "paragraph_id": 89, "text": "The greenhouse effect on Venus is particularly large, and it brings the surface temperature to as high as 735 K (462 °C; 863 °F). This is due to its very dense atmosphere which consists of about 97% carbon dioxide.", "title": "Bodies other than Earth" }, { "paragraph_id": 90, "text": "Although Venus is about 30% closer to the Sun, it absorbs (and is warmed by) less sunlight than Earth, because Venus reflects 77% of incident sunlight while Earth reflects around 30%. In the absence of a greenhouse effect, the surface of Venus would be expected to have a temperature of 232 K (−41 °C; −42 °F). Thus, contrary to what one might think, being nearer to the Sun is not a reason why Venus is warmer than Earth.", "title": "Bodies other than Earth" }, { "paragraph_id": 91, "text": "Due to its high pressure, the CO2 in the atmosphere of Venus exhibits continuum absorption (absorption over a broad range of wavelengths) and is not limited to absorption within the bands relevant to its absorption on Earth.", "title": "Bodies other than Earth" }, { "paragraph_id": 92, "text": "A runaway greenhouse effect involving carbon dioxide and water vapor has for many years been hypothesized to have occurred on Venus; this idea is still largely accepted. The planet Venus experienced a runaway greenhouse effect, resulting in an atmosphere which is 96% carbon dioxide, and a surface atmospheric pressure roughly the same as found 900 m (3,000 ft) underwater on Earth. Venus may have had water oceans, but they would have boiled off as the mean surface temperature rose to the current 735 K (462 °C; 863 °F).", "title": "Bodies other than Earth" }, { "paragraph_id": 93, "text": "Mars has about 70 times as much carbon dioxide as Earth, but experiences only a small greenhouse effect, about 6 K (11 °F). The greenhouse effect is small due to the lack of water vapor and the overall thinness of the atmosphere.", "title": "Bodies other than Earth" }, { "paragraph_id": 94, "text": "The same radiative transfer calculations that predict warming on Earth accurately explain the temperature on Mars, given its atmospheric composition.", "title": "Bodies other than Earth" }, { "paragraph_id": 95, "text": "Saturn's moon Titan has both a greenhouse effect and an anti-greenhouse effect. The presence of nitrogen (N2), methane (CH4), and hydrogen (H2) in the atmosphere contribute to a greenhouse effect, increasing the surface temperature by 21 K (38 °F) over the expected temperature of the body without these gases.", "title": "Bodies other than Earth" }, { "paragraph_id": 96, "text": "While the gases N2 and H2 ordinarily do not absorb infrared radiation, these gases absorb thermal radiation on Titan due to pressure-induced collisions, the large mass and thickness of the atmosphere, and the long wavelengths of the thermal radiation from the cold surface.", "title": "Bodies other than Earth" }, { "paragraph_id": 97, "text": "The existence of a high-altitude haze, which absorbs wavelengths of solar radiation but is transparent to infrared, contribute to an anti-greenhouse effect of approximately 9 K (16 °F).", "title": "Bodies other than Earth" }, { "paragraph_id": 98, "text": "The net result of these two effects is a warming of 21 K − 9 K = 12 K (22 °F), so Titan's surface temperature of 94 K (−179 °C; −290 °F) is 12 K warmer than it would be if there were no atmosphere.", "title": "Bodies other than Earth" }, { "paragraph_id": 99, "text": "One cannot predict the relative sizes of the greenhouse effects on different bodies simply by comparing the amount of greenhouse gases in their atmospheres. This is because factors other than the quantity of these gases also play a role in determining the size of the greenhouse effect.", "title": "Bodies other than Earth" }, { "paragraph_id": 100, "text": "Overall atmospheric pressure affects how much thermal radiation each molecule of a greenhouse gas can absorb. High pressure leads to more absorption and low pressure leads to less.", "title": "Bodies other than Earth" }, { "paragraph_id": 101, "text": "This is due to \"pressure broadening\" of spectral lines. When the total atmospheric pressure is higher, collisions between molecules occur at a higher rate. Collisions broaden the width of absorption lines, allowing a greenhouse gas to absorb thermal radiation over a broader range of wavelengths.", "title": "Bodies other than Earth" }, { "paragraph_id": 102, "text": "Each molecule in the air near Earth's surface experiences about 7 billion collisions per second. This rate is lower at higher altitudes, where the pressure and temperature are both lower. This means that greenhouse gases are able to absorb more wavelengths in the lower atmosphere than they can in the upper atmosphere.", "title": "Bodies other than Earth" }, { "paragraph_id": 103, "text": "On other planets, pressure broadening means that each molecule of a greenhouse gas is more effective at trapping thermal radiation if the total atmospheric pressure is high (as on Venus), and less effective at trapping thermal radiation if the atmospheric pressure is low (as on Mars).", "title": "Bodies other than Earth" } ]
The greenhouse effect occurs when greenhouse gases in a planet's atmosphere trap some of the heat radiated from the planet's surface, raising its temperature. This process happens because stars emit shortwave radiation that passes through greenhouse gases, but planets emit longwave radiation that is partly absorbed by greenhouse gases. That difference reduces the rate at which a planet can cool off in response to being warmed by its host star. Adding to greenhouse gases further reduces the rate a planet emits radiation to space, raising its average surface temperature. The Earth's average surface temperature would be about −18 °C (−0.4 °F) without the greenhouse effect, compared to Earth's 20th century average of about 14 °C (57 °F), or a more recent average of about 15 °C (59 °F). In addition to naturally present greenhouse gases, burning of fossil fuels has increased amounts of carbon dioxide and methane in the atmosphere. As a result, global warming of about 1.2 °C (2.2 °F) has occurred since the industrial revolution, with the global average surface temperature increasing at a rate of 0.18 °C (0.32 °F) per decade since 1981. The wavelengths of radiation emitted by the Sun and Earth differ because their surface temperatures are different. The Sun has a surface temperature of 5,500 °C (9,900 °F), so it emits most of its energy as shortwave radiation in near-infrared and visible wavelengths. In contrast, Earth's surface has a much lower temperature, so it emits longwave radiation at mid- and far-infrared wavelengths. A gas is a greenhouse gas if it absorbs longwave radiation. Earth's atmosphere absorbs only 23% of incoming shortwave radiation, but absorbs 90% of the longwave radiation emitted by the surface, thus accumulating energy and warming the Earth's surface. The existence of the greenhouse effect, while not named as such, was proposed as early as 1824 by Joseph Fourier. The argument and the evidence were further strengthened by Claude Pouillet in 1827 and 1838. In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxide. The term greenhouse was first applied to this phenomenon by Nils Gustaf Ekholm in 1901.
2001-07-31T21:23:33Z
2023-12-30T05:08:39Z
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https://en.wikipedia.org/wiki/Greenhouse_effect
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Group homomorphism
In mathematics, given two groups, (G, ∗) and (H, ·), a group homomorphism from (G, ∗) to (H, ·) is a function h : G → H such that for all u and v in G it holds that where the group operation on the left side of the equation is that of G and on the right side that of H. From this property, one can deduce that h maps the identity element eG of G to the identity element eH of H, and it also maps inverses to inverses in the sense that Hence one can say that h "is compatible with the group structure". Older notations for the homomorphism h(x) may be x or xh, though this may be confused as an index or a general subscript. In automata theory, sometimes homomorphisms are written to the right of their arguments without parentheses, so that h(x) becomes simply x h {\displaystyle xh} . In areas of mathematics where one considers groups endowed with additional structure, a homomorphism sometimes means a map which respects not only the group structure (as above) but also the extra structure. For example, a homomorphism of topological groups is often required to be continuous. The purpose of defining a group homomorphism is to create functions that preserve the algebraic structure. An equivalent definition of group homomorphism is: The function h : G → H is a group homomorphism if whenever In other words, the group H in some sense has a similar algebraic structure as G and the homomorphism h preserves that. We define the kernel of h to be the set of elements in G which are mapped to the identity in H and the image of h to be The kernel and image of a homomorphism can be interpreted as measuring how close it is to being an isomorphism. The first isomorphism theorem states that the image of a group homomorphism, h(G) is isomorphic to the quotient group G/ker h. The kernel of h is a normal subgroup of G and the image of h is a subgroup of H: If and only if ker(h) = {eG}, the homomorphism, h, is a group monomorphism; i.e., h is injective (one-to-one). Injection directly gives that there is a unique element in the kernel, and, conversely, a unique element in the kernel gives injection: forms a group under matrix multiplication. For any complex number u the function fu : G → C defined by If h : G → H and k : H → K are group homomorphisms, then so is k ∘ h : G → K. This shows that the class of all groups, together with group homomorphisms as morphisms, forms a category. If G and H are abelian (i.e., commutative) groups, then the set Hom(G, H) of all group homomorphisms from G to H is itself an abelian group: the sum h + k of two homomorphisms is defined by The commutativity of H is needed to prove that h + k is again a group homomorphism. The addition of homomorphisms is compatible with the composition of homomorphisms in the following sense: if f is in Hom(K, G), h, k are elements of Hom(G, H), and g is in Hom(H, L), then Since the composition is associative, this shows that the set End(G) of all endomorphisms of an abelian group forms a ring, the endomorphism ring of G. For example, the endomorphism ring of the abelian group consisting of the direct sum of m copies of Z/nZ is isomorphic to the ring of m-by-m matrices with entries in Z/nZ. The above compatibility also shows that the category of all abelian groups with group homomorphisms forms a preadditive category; the existence of direct sums and well-behaved kernels makes this category the prototypical example of an abelian category.
[ { "paragraph_id": 0, "text": "In mathematics, given two groups, (G, ∗) and (H, ·), a group homomorphism from (G, ∗) to (H, ·) is a function h : G → H such that for all u and v in G it holds that", "title": "" }, { "paragraph_id": 1, "text": "where the group operation on the left side of the equation is that of G and on the right side that of H.", "title": "" }, { "paragraph_id": 2, "text": "From this property, one can deduce that h maps the identity element eG of G to the identity element eH of H,", "title": "" }, { "paragraph_id": 3, "text": "and it also maps inverses to inverses in the sense that", "title": "" }, { "paragraph_id": 4, "text": "Hence one can say that h \"is compatible with the group structure\".", "title": "" }, { "paragraph_id": 5, "text": "Older notations for the homomorphism h(x) may be x or xh, though this may be confused as an index or a general subscript. In automata theory, sometimes homomorphisms are written to the right of their arguments without parentheses, so that h(x) becomes simply x h {\\displaystyle xh} .", "title": "" }, { "paragraph_id": 6, "text": "In areas of mathematics where one considers groups endowed with additional structure, a homomorphism sometimes means a map which respects not only the group structure (as above) but also the extra structure. For example, a homomorphism of topological groups is often required to be continuous.", "title": "" }, { "paragraph_id": 7, "text": "The purpose of defining a group homomorphism is to create functions that preserve the algebraic structure. An equivalent definition of group homomorphism is: The function h : G → H is a group homomorphism if whenever", "title": "Intuition" }, { "paragraph_id": 8, "text": "In other words, the group H in some sense has a similar algebraic structure as G and the homomorphism h preserves that.", "title": "Intuition" }, { "paragraph_id": 9, "text": "We define the kernel of h to be the set of elements in G which are mapped to the identity in H", "title": "Image and kernel" }, { "paragraph_id": 10, "text": "and the image of h to be", "title": "Image and kernel" }, { "paragraph_id": 11, "text": "The kernel and image of a homomorphism can be interpreted as measuring how close it is to being an isomorphism. The first isomorphism theorem states that the image of a group homomorphism, h(G) is isomorphic to the quotient group G/ker h.", "title": "Image and kernel" }, { "paragraph_id": 12, "text": "The kernel of h is a normal subgroup of G and the image of h is a subgroup of H:", "title": "Image and kernel" }, { "paragraph_id": 13, "text": "If and only if ker(h) = {eG}, the homomorphism, h, is a group monomorphism; i.e., h is injective (one-to-one). Injection directly gives that there is a unique element in the kernel, and, conversely, a unique element in the kernel gives injection:", "title": "Image and kernel" }, { "paragraph_id": 14, "text": "forms a group under matrix multiplication. For any complex number u the function fu : G → C defined by", "title": "Examples" }, { "paragraph_id": 15, "text": "If h : G → H and k : H → K are group homomorphisms, then so is k ∘ h : G → K. This shows that the class of all groups, together with group homomorphisms as morphisms, forms a category.", "title": "Category of groups" }, { "paragraph_id": 16, "text": "If G and H are abelian (i.e., commutative) groups, then the set Hom(G, H) of all group homomorphisms from G to H is itself an abelian group: the sum h + k of two homomorphisms is defined by", "title": "Homomorphisms of abelian groups" }, { "paragraph_id": 17, "text": "The commutativity of H is needed to prove that h + k is again a group homomorphism.", "title": "Homomorphisms of abelian groups" }, { "paragraph_id": 18, "text": "The addition of homomorphisms is compatible with the composition of homomorphisms in the following sense: if f is in Hom(K, G), h, k are elements of Hom(G, H), and g is in Hom(H, L), then", "title": "Homomorphisms of abelian groups" }, { "paragraph_id": 19, "text": "Since the composition is associative, this shows that the set End(G) of all endomorphisms of an abelian group forms a ring, the endomorphism ring of G. For example, the endomorphism ring of the abelian group consisting of the direct sum of m copies of Z/nZ is isomorphic to the ring of m-by-m matrices with entries in Z/nZ. The above compatibility also shows that the category of all abelian groups with group homomorphisms forms a preadditive category; the existence of direct sums and well-behaved kernels makes this category the prototypical example of an abelian category.", "title": "Homomorphisms of abelian groups" } ]
In mathematics, given two groups, (G, ∗) and (H, ·), a group homomorphism from (G, ∗) to (H, ·) is a function h : G → H such that for all u and v in G it holds that where the group operation on the left side of the equation is that of G and on the right side that of H. From this property, one can deduce that h maps the identity element eG of G to the identity element eH of H, and it also maps inverses to inverses in the sense that Hence one can say that h "is compatible with the group structure". Older notations for the homomorphism h(x) may be xh or xh, though this may be confused as an index or a general subscript. In automata theory, sometimes homomorphisms are written to the right of their arguments without parentheses, so that h(x) becomes simply x h . In areas of mathematics where one considers groups endowed with additional structure, a homomorphism sometimes means a map which respects not only the group structure (as above) but also the extra structure. For example, a homomorphism of topological groups is often required to be continuous.
2001-10-09T00:48:31Z
2023-12-20T19:12:17Z
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https://en.wikipedia.org/wiki/Group_homomorphism
12,397
Group isomorphism
In abstract algebra, a group isomorphism is a function between two groups that sets up a bijection between the elements of the groups in a way that respects the given group operations. If there exists an isomorphism between two groups, then the groups are called isomorphic. From the standpoint of group theory, isomorphic groups have the same properties and need not be distinguished. Given two groups ( G , ∗ ) {\displaystyle (G,*)} and ( H , ⊙ ) , {\displaystyle (H,\odot ),} a group isomorphism from ( G , ∗ ) {\displaystyle (G,*)} to ( H , ⊙ ) {\displaystyle (H,\odot )} is a bijective group homomorphism from G {\displaystyle G} to H . {\displaystyle H.} Spelled out, this means that a group isomorphism is a bijective function f : G → H {\displaystyle f:G\to H} such that for all u {\displaystyle u} and v {\displaystyle v} in G {\displaystyle G} it holds that The two groups ( G , ∗ ) {\displaystyle (G,*)} and ( H , ⊙ ) {\displaystyle (H,\odot )} are isomorphic if there exists an isomorphism from one to the other. This is written Often shorter and simpler notations can be used. When the relevant group operations are understood, they are omitted and one writes Sometimes one can even simply write G = H . {\displaystyle G=H.} Whether such a notation is possible without confusion or ambiguity depends on context. For example, the equals sign is not very suitable when the groups are both subgroups of the same group. See also the examples. Conversely, given a group ( G , ∗ ) , {\displaystyle (G,*),} a set H , {\displaystyle H,} and a bijection f : G → H , {\displaystyle f:G\to H,} we can make H {\displaystyle H} a group ( H , ⊙ ) {\displaystyle (H,\odot )} by defining If H = G {\displaystyle H=G} and ⊙ = ∗ {\displaystyle \odot =*} then the bijection is an automorphism (q.v.). Intuitively, group theorists view two isomorphic groups as follows: For every element g {\displaystyle g} of a group G , {\displaystyle G,} there exists an element h {\displaystyle h} of H {\displaystyle H} such that h {\displaystyle h} "behaves in the same way" as g {\displaystyle g} (operates with other elements of the group in the same way as g {\displaystyle g} ). For instance, if g {\displaystyle g} generates G , {\displaystyle G,} then so does h . {\displaystyle h.} This implies, in particular, that G {\displaystyle G} and H {\displaystyle H} are in bijective correspondence. Thus, the definition of an isomorphism is quite natural. An isomorphism of groups may equivalently be defined as an invertible group homomorphism (the inverse function of a bijective group homomorphism is also a group homomorphism). In this section some notable examples of isomorphic groups are listed. Some groups can be proven to be isomorphic, relying on the axiom of choice, but the proof does not indicate how to construct a concrete isomorphism. Examples: The kernel of an isomorphism from ( G , ∗ ) {\displaystyle (G,*)} to ( H , ⊙ ) {\displaystyle (H,\odot )} is always {eG}, where eG is the identity of the group ( G , ∗ ) {\displaystyle (G,*)} If ( G , ∗ ) {\displaystyle (G,*)} and ( H , ⊙ ) {\displaystyle (H,\odot )} are isomorphic, then G {\displaystyle G} is abelian if and only if H {\displaystyle H} is abelian. If f {\displaystyle f} is an isomorphism from ( G , ∗ ) {\displaystyle (G,*)} to ( H , ⊙ ) , {\displaystyle (H,\odot ),} then for any a ∈ G , {\displaystyle a\in G,} the order of a {\displaystyle a} equals the order of f ( a ) . {\displaystyle f(a).} If ( G , ∗ ) {\displaystyle (G,*)} and ( H , ⊙ ) {\displaystyle (H,\odot )} are isomorphic, then ( G , ∗ ) {\displaystyle (G,*)} is a locally finite group if and only if ( H , ⊙ ) {\displaystyle (H,\odot )} is locally finite. The number of distinct groups (up to isomorphism) of order n {\displaystyle n} is given by sequence A000001 in the OEIS. The first few numbers are 0, 1, 1, 1 and 2 meaning that 4 is the lowest order with more than one group. All cyclic groups of a given order are isomorphic to ( Z n , + n ) , {\displaystyle (\mathbb {Z} _{n},+_{n}),} where + n {\displaystyle +_{n}} denotes addition modulo n . {\displaystyle n.} Let G {\displaystyle G} be a cyclic group and n {\displaystyle n} be the order of G . {\displaystyle G.} Letting x {\displaystyle x} be a generator of G {\displaystyle G} , G {\displaystyle G} is then equal to ⟨ x ⟩ = { e , x , … , x n − 1 } . {\displaystyle \langle x\rangle =\left\{e,x,\ldots ,x^{n-1}\right\}.} We will show that Define so that φ ( x a ) = a . {\displaystyle \varphi (x^{a})=a.} Clearly, φ {\displaystyle \varphi } is bijective. Then which proves that G ≅ ( Z n , + n ) . {\displaystyle G\cong (\mathbb {Z} _{n},+_{n}).} From the definition, it follows that any isomorphism f : G → H {\displaystyle f:G\to H} will map the identity element of G {\displaystyle G} to the identity element of H , {\displaystyle H,} that it will map inverses to inverses, and more generally, n {\displaystyle n} th powers to n {\displaystyle n} th powers, and that the inverse map f − 1 : H → G {\displaystyle f^{-1}:H\to G} is also a group isomorphism. The relation "being isomorphic" satisfies is an equivalence relation. If f {\displaystyle f} is an isomorphism between two groups G {\displaystyle G} and H , {\displaystyle H,} then everything that is true about G {\displaystyle G} that is only related to the group structure can be translated via f {\displaystyle f} into a true ditto statement about H , {\displaystyle H,} and vice versa. An isomorphism from a group ( G , ∗ ) {\displaystyle (G,*)} to itself is called an automorphism of the group. Thus it is a bijection f : G → G {\displaystyle f:G\to G} such that The image under an automorphism of a conjugacy class is always a conjugacy class (the same or another). The composition of two automorphisms is again an automorphism, and with this operation the set of all automorphisms of a group G , {\displaystyle G,} denoted by Aut ( G ) , {\displaystyle \operatorname {Aut} (G),} forms itself a group, the automorphism group of G . {\displaystyle G.} For all abelian groups there is at least the automorphism that replaces the group elements by their inverses. However, in groups where all elements are equal to their inverses this is the trivial automorphism, e.g. in the Klein four-group. For that group all permutations of the three non-identity elements are automorphisms, so the automorphism group is isomorphic to S 3 {\displaystyle S_{3}} (which itself is isomorphic to Dih 3 {\displaystyle \operatorname {Dih} _{3}} ). In Z p {\displaystyle \mathbb {Z} _{p}} for a prime number p , {\displaystyle p,} one non-identity element can be replaced by any other, with corresponding changes in the other elements. The automorphism group is isomorphic to Z p − 1 {\displaystyle \mathbb {Z} _{p-1}} For example, for n = 7 , {\displaystyle n=7,} multiplying all elements of Z 7 {\displaystyle \mathbb {Z} _{7}} by 3, modulo 7, is an automorphism of order 6 in the automorphism group, because 3 6 ≡ 1 ( mod 7 ) , {\displaystyle 3^{6}\equiv 1{\pmod {7}},} while lower powers do not give 1. Thus this automorphism generates Z 6 . {\displaystyle \mathbb {Z} _{6}.} There is one more automorphism with this property: multiplying all elements of Z 7 {\displaystyle \mathbb {Z} _{7}} by 5, modulo 7. Therefore, these two correspond to the elements 1 and 5 of Z 6 , {\displaystyle \mathbb {Z} _{6},} in that order or conversely. The automorphism group of Z 6 {\displaystyle \mathbb {Z} _{6}} is isomorphic to Z 2 , {\displaystyle \mathbb {Z} _{2},} because only each of the two elements 1 and 5 generate Z 6 , {\displaystyle \mathbb {Z} _{6},} so apart from the identity we can only interchange these. The automorphism group of Z 2 ⊕ Z 2 ⊕ ⊕ Z 2 = Dih 2 ⊕ Z 2 {\displaystyle \mathbb {Z} _{2}\oplus \mathbb {Z} _{2}\oplus \oplus \mathbb {Z} _{2}=\operatorname {Dih} _{2}\oplus \mathbb {Z} _{2}} has order 168, as can be found as follows. All 7 non-identity elements play the same role, so we can choose which plays the role of ( 1 , 0 , 0 ) . {\displaystyle (1,0,0).} Any of the remaining 6 can be chosen to play the role of (0,1,0). This determines which element corresponds to ( 1 , 1 , 0 ) . {\displaystyle (1,1,0).} For ( 0 , 0 , 1 ) {\displaystyle (0,0,1)} we can choose from 4, which determines the rest. Thus we have 7 × 6 × 4 = 168 {\displaystyle 7\times 6\times 4=168} automorphisms. They correspond to those of the Fano plane, of which the 7 points correspond to the 7 non-identity elements. The lines connecting three points correspond to the group operation: a , b , {\displaystyle a,b,} and c {\displaystyle c} on one line means a + b = c , {\displaystyle a+b=c,} a + c = b , {\displaystyle a+c=b,} and b + c = a . {\displaystyle b+c=a.} See also general linear group over finite fields. For abelian groups, all non-trivial automorphisms are outer automorphisms. Non-abelian groups have a non-trivial inner automorphism group, and possibly also outer automorphisms.
[ { "paragraph_id": 0, "text": "In abstract algebra, a group isomorphism is a function between two groups that sets up a bijection between the elements of the groups in a way that respects the given group operations. If there exists an isomorphism between two groups, then the groups are called isomorphic. From the standpoint of group theory, isomorphic groups have the same properties and need not be distinguished.", "title": "" }, { "paragraph_id": 1, "text": "Given two groups ( G , ∗ ) {\\displaystyle (G,*)} and ( H , ⊙ ) , {\\displaystyle (H,\\odot ),} a group isomorphism from ( G , ∗ ) {\\displaystyle (G,*)} to ( H , ⊙ ) {\\displaystyle (H,\\odot )} is a bijective group homomorphism from G {\\displaystyle G} to H . {\\displaystyle H.} Spelled out, this means that a group isomorphism is a bijective function f : G → H {\\displaystyle f:G\\to H} such that for all u {\\displaystyle u} and v {\\displaystyle v} in G {\\displaystyle G} it holds that", "title": "Definition and notation" }, { "paragraph_id": 2, "text": "The two groups ( G , ∗ ) {\\displaystyle (G,*)} and ( H , ⊙ ) {\\displaystyle (H,\\odot )} are isomorphic if there exists an isomorphism from one to the other. This is written", "title": "Definition and notation" }, { "paragraph_id": 3, "text": "Often shorter and simpler notations can be used. When the relevant group operations are understood, they are omitted and one writes", "title": "Definition and notation" }, { "paragraph_id": 4, "text": "Sometimes one can even simply write G = H . {\\displaystyle G=H.} Whether such a notation is possible without confusion or ambiguity depends on context. For example, the equals sign is not very suitable when the groups are both subgroups of the same group. See also the examples.", "title": "Definition and notation" }, { "paragraph_id": 5, "text": "Conversely, given a group ( G , ∗ ) , {\\displaystyle (G,*),} a set H , {\\displaystyle H,} and a bijection f : G → H , {\\displaystyle f:G\\to H,} we can make H {\\displaystyle H} a group ( H , ⊙ ) {\\displaystyle (H,\\odot )} by defining", "title": "Definition and notation" }, { "paragraph_id": 6, "text": "If H = G {\\displaystyle H=G} and ⊙ = ∗ {\\displaystyle \\odot =*} then the bijection is an automorphism (q.v.).", "title": "Definition and notation" }, { "paragraph_id": 7, "text": "Intuitively, group theorists view two isomorphic groups as follows: For every element g {\\displaystyle g} of a group G , {\\displaystyle G,} there exists an element h {\\displaystyle h} of H {\\displaystyle H} such that h {\\displaystyle h} \"behaves in the same way\" as g {\\displaystyle g} (operates with other elements of the group in the same way as g {\\displaystyle g} ). For instance, if g {\\displaystyle g} generates G , {\\displaystyle G,} then so does h . {\\displaystyle h.} This implies, in particular, that G {\\displaystyle G} and H {\\displaystyle H} are in bijective correspondence. Thus, the definition of an isomorphism is quite natural.", "title": "Definition and notation" }, { "paragraph_id": 8, "text": "An isomorphism of groups may equivalently be defined as an invertible group homomorphism (the inverse function of a bijective group homomorphism is also a group homomorphism).", "title": "Definition and notation" }, { "paragraph_id": 9, "text": "In this section some notable examples of isomorphic groups are listed.", "title": "Examples" }, { "paragraph_id": 10, "text": "Some groups can be proven to be isomorphic, relying on the axiom of choice, but the proof does not indicate how to construct a concrete isomorphism. Examples:", "title": "Examples" }, { "paragraph_id": 11, "text": "The kernel of an isomorphism from ( G , ∗ ) {\\displaystyle (G,*)} to ( H , ⊙ ) {\\displaystyle (H,\\odot )} is always {eG}, where eG is the identity of the group ( G , ∗ ) {\\displaystyle (G,*)}", "title": "Properties" }, { "paragraph_id": 12, "text": "If ( G , ∗ ) {\\displaystyle (G,*)} and ( H , ⊙ ) {\\displaystyle (H,\\odot )} are isomorphic, then G {\\displaystyle G} is abelian if and only if H {\\displaystyle H} is abelian.", "title": "Properties" }, { "paragraph_id": 13, "text": "If f {\\displaystyle f} is an isomorphism from ( G , ∗ ) {\\displaystyle (G,*)} to ( H , ⊙ ) , {\\displaystyle (H,\\odot ),} then for any a ∈ G , {\\displaystyle a\\in G,} the order of a {\\displaystyle a} equals the order of f ( a ) . {\\displaystyle f(a).}", "title": "Properties" }, { "paragraph_id": 14, "text": "If ( G , ∗ ) {\\displaystyle (G,*)} and ( H , ⊙ ) {\\displaystyle (H,\\odot )} are isomorphic, then ( G , ∗ ) {\\displaystyle (G,*)} is a locally finite group if and only if ( H , ⊙ ) {\\displaystyle (H,\\odot )} is locally finite.", "title": "Properties" }, { "paragraph_id": 15, "text": "The number of distinct groups (up to isomorphism) of order n {\\displaystyle n} is given by sequence A000001 in the OEIS. The first few numbers are 0, 1, 1, 1 and 2 meaning that 4 is the lowest order with more than one group.", "title": "Properties" }, { "paragraph_id": 16, "text": "All cyclic groups of a given order are isomorphic to ( Z n , + n ) , {\\displaystyle (\\mathbb {Z} _{n},+_{n}),} where + n {\\displaystyle +_{n}} denotes addition modulo n . {\\displaystyle n.}", "title": "Cyclic groups" }, { "paragraph_id": 17, "text": "Let G {\\displaystyle G} be a cyclic group and n {\\displaystyle n} be the order of G . {\\displaystyle G.} Letting x {\\displaystyle x} be a generator of G {\\displaystyle G} , G {\\displaystyle G} is then equal to ⟨ x ⟩ = { e , x , … , x n − 1 } . {\\displaystyle \\langle x\\rangle =\\left\\{e,x,\\ldots ,x^{n-1}\\right\\}.} We will show that", "title": "Cyclic groups" }, { "paragraph_id": 18, "text": "Define", "title": "Cyclic groups" }, { "paragraph_id": 19, "text": "so that φ ( x a ) = a . {\\displaystyle \\varphi (x^{a})=a.}", "title": "Cyclic groups" }, { "paragraph_id": 20, "text": "Clearly, φ {\\displaystyle \\varphi } is bijective. Then", "title": "Cyclic groups" }, { "paragraph_id": 21, "text": "which proves that G ≅ ( Z n , + n ) . {\\displaystyle G\\cong (\\mathbb {Z} _{n},+_{n}).}", "title": "Cyclic groups" }, { "paragraph_id": 22, "text": "From the definition, it follows that any isomorphism f : G → H {\\displaystyle f:G\\to H} will map the identity element of G {\\displaystyle G} to the identity element of H , {\\displaystyle H,}", "title": "Consequences" }, { "paragraph_id": 23, "text": "that it will map inverses to inverses,", "title": "Consequences" }, { "paragraph_id": 24, "text": "and more generally, n {\\displaystyle n} th powers to n {\\displaystyle n} th powers,", "title": "Consequences" }, { "paragraph_id": 25, "text": "and that the inverse map f − 1 : H → G {\\displaystyle f^{-1}:H\\to G} is also a group isomorphism.", "title": "Consequences" }, { "paragraph_id": 26, "text": "The relation \"being isomorphic\" satisfies is an equivalence relation. If f {\\displaystyle f} is an isomorphism between two groups G {\\displaystyle G} and H , {\\displaystyle H,} then everything that is true about G {\\displaystyle G} that is only related to the group structure can be translated via f {\\displaystyle f} into a true ditto statement about H , {\\displaystyle H,} and vice versa.", "title": "Consequences" }, { "paragraph_id": 27, "text": "An isomorphism from a group ( G , ∗ ) {\\displaystyle (G,*)} to itself is called an automorphism of the group. Thus it is a bijection f : G → G {\\displaystyle f:G\\to G} such that", "title": "Automorphisms" }, { "paragraph_id": 28, "text": "The image under an automorphism of a conjugacy class is always a conjugacy class (the same or another).", "title": "Automorphisms" }, { "paragraph_id": 29, "text": "The composition of two automorphisms is again an automorphism, and with this operation the set of all automorphisms of a group G , {\\displaystyle G,} denoted by Aut ( G ) , {\\displaystyle \\operatorname {Aut} (G),} forms itself a group, the automorphism group of G . {\\displaystyle G.}", "title": "Automorphisms" }, { "paragraph_id": 30, "text": "For all abelian groups there is at least the automorphism that replaces the group elements by their inverses. However, in groups where all elements are equal to their inverses this is the trivial automorphism, e.g. in the Klein four-group. For that group all permutations of the three non-identity elements are automorphisms, so the automorphism group is isomorphic to S 3 {\\displaystyle S_{3}} (which itself is isomorphic to Dih 3 {\\displaystyle \\operatorname {Dih} _{3}} ).", "title": "Automorphisms" }, { "paragraph_id": 31, "text": "In Z p {\\displaystyle \\mathbb {Z} _{p}} for a prime number p , {\\displaystyle p,} one non-identity element can be replaced by any other, with corresponding changes in the other elements. The automorphism group is isomorphic to Z p − 1 {\\displaystyle \\mathbb {Z} _{p-1}} For example, for n = 7 , {\\displaystyle n=7,} multiplying all elements of Z 7 {\\displaystyle \\mathbb {Z} _{7}} by 3, modulo 7, is an automorphism of order 6 in the automorphism group, because 3 6 ≡ 1 ( mod 7 ) , {\\displaystyle 3^{6}\\equiv 1{\\pmod {7}},} while lower powers do not give 1. Thus this automorphism generates Z 6 . {\\displaystyle \\mathbb {Z} _{6}.} There is one more automorphism with this property: multiplying all elements of Z 7 {\\displaystyle \\mathbb {Z} _{7}} by 5, modulo 7. Therefore, these two correspond to the elements 1 and 5 of Z 6 , {\\displaystyle \\mathbb {Z} _{6},} in that order or conversely.", "title": "Automorphisms" }, { "paragraph_id": 32, "text": "The automorphism group of Z 6 {\\displaystyle \\mathbb {Z} _{6}} is isomorphic to Z 2 , {\\displaystyle \\mathbb {Z} _{2},} because only each of the two elements 1 and 5 generate Z 6 , {\\displaystyle \\mathbb {Z} _{6},} so apart from the identity we can only interchange these.", "title": "Automorphisms" }, { "paragraph_id": 33, "text": "The automorphism group of Z 2 ⊕ Z 2 ⊕ ⊕ Z 2 = Dih 2 ⊕ Z 2 {\\displaystyle \\mathbb {Z} _{2}\\oplus \\mathbb {Z} _{2}\\oplus \\oplus \\mathbb {Z} _{2}=\\operatorname {Dih} _{2}\\oplus \\mathbb {Z} _{2}} has order 168, as can be found as follows. All 7 non-identity elements play the same role, so we can choose which plays the role of ( 1 , 0 , 0 ) . {\\displaystyle (1,0,0).} Any of the remaining 6 can be chosen to play the role of (0,1,0). This determines which element corresponds to ( 1 , 1 , 0 ) . {\\displaystyle (1,1,0).} For ( 0 , 0 , 1 ) {\\displaystyle (0,0,1)} we can choose from 4, which determines the rest. Thus we have 7 × 6 × 4 = 168 {\\displaystyle 7\\times 6\\times 4=168} automorphisms. They correspond to those of the Fano plane, of which the 7 points correspond to the 7 non-identity elements. The lines connecting three points correspond to the group operation: a , b , {\\displaystyle a,b,} and c {\\displaystyle c} on one line means a + b = c , {\\displaystyle a+b=c,} a + c = b , {\\displaystyle a+c=b,} and b + c = a . {\\displaystyle b+c=a.} See also general linear group over finite fields.", "title": "Automorphisms" }, { "paragraph_id": 34, "text": "For abelian groups, all non-trivial automorphisms are outer automorphisms.", "title": "Automorphisms" }, { "paragraph_id": 35, "text": "Non-abelian groups have a non-trivial inner automorphism group, and possibly also outer automorphisms.", "title": "Automorphisms" } ]
In abstract algebra, a group isomorphism is a function between two groups that sets up a bijection between the elements of the groups in a way that respects the given group operations. If there exists an isomorphism between two groups, then the groups are called isomorphic. From the standpoint of group theory, isomorphic groups have the same properties and need not be distinguished.
2002-02-25T15:51:15Z
2023-11-23T00:07:24Z
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https://en.wikipedia.org/wiki/Group_isomorphism
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Geographic information system
A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. Much of this often happens within a spatial database, however, this is not essential to meet the definition of a GIS. In a broader sense, one may consider such a system also to include human users and support staff, procedures and workflows, the body of knowledge of relevant concepts and methods, and institutional organizations. The uncounted plural, geographic information systems, also abbreviated GIS, is the most common term for the industry and profession concerned with these systems. It is roughly synonymous with geoinformatics. The academic discipline that studies these systems and their underlying geographic principles, may also be abbreviated as GIS, but the unambiguous GIScience is more common. GIScience is often considered a subdiscipline of geography within the branch of technical geography. Geographic information systems are utilized in multiple technologies, processes, techniques and methods. They are attached to various operations and numerous applications, that relate to: engineering, planning, management, transport/logistics, insurance, telecommunications, and business. For this reason, GIS and location intelligence applications are at the foundation of location-enabled services, which rely on geographic analysis and visualization. GIS provides the capability to relate previously unrelated information, through the use of location as the "key index variable". Locations and extents that are found in the Earth's spacetime are able to be recorded through the date and time of occurrence, along with x, y, and z coordinates; representing, longitude (x), latitude (y), and elevation (z). All Earth-based, spatial–temporal, location and extent references should be relatable to one another, and ultimately, to a "real" physical location or extent. This key characteristic of GIS has begun to open new avenues of scientific inquiry and studies. While digital GIS dates to the mid-1960s, when Roger Tomlinson first coined the phrase "geographic information system", many of the geographic concepts and methods that GIS automates date back decades earlier. One of the first known instances in which spatial analysis was used came from the field of epidemiology in the "Rapport sur la marche et les effets du choléra dans Paris et le département de la Seine" (1832). French geographer and cartographer, Charles Picquet created a map outlining the forty-eight Districts in Paris, using halftone color gradients, to provide a visual representation for the number of reported deaths due to cholera per every 1,000 inhabitants. In 1854, John Snow, an epidemiologist and physician, was able to determine the source of a cholera outbreak in London through the use of spatial analysis. Snow achieved this through plotting the residence of each casualty on a map of the area, as well as the nearby water sources. Once these points were marked, he was able to identify the water source within the cluster that was responsible for the outbreak. This was one of the earliest successful uses of a geographic methodology in pinpointing the source of an outbreak in epidemiology. While the basic elements of topography and theme existed previously in cartography, Snow's map was unique due to his use of cartographic methods, not only to depict, but also to analyze clusters of geographically dependent phenomena. The early 20th century saw the development of photozincography, which allowed maps to be split into layers, for example one layer for vegetation and another for water. This was particularly used for printing contours – drawing these was a labour-intensive task but having them on a separate layer meant they could be worked on without the other layers to confuse the draughtsman. This work was initially drawn on glass plates, but later plastic film was introduced, with the advantages of being lighter, using less storage space and being less brittle, among others. When all the layers were finished, they were combined into one image using a large process camera. Once color printing came in, the layers idea was also used for creating separate printing plates for each color. While the use of layers much later became one of the typical features of a contemporary GIS, the photographic process just described is not considered a GIS in itself -– as the maps were just images with no database to link them to. Two additional developments are notable in the early days of GIS: Ian McHarg's publication "Design with Nature" and its map overlay method and the introduction of a street network into the U.S. Census Bureau's DIME (Dual Independent Map Encoding) system. The first publication detailing the use of computers to facilitate cartography was written by Waldo Tobler in 1959. Further computer hardware development spurred by nuclear weapon research led to more widespread general-purpose computer "mapping" applications by the early 1960s. In 1960 the world's first true operational GIS was developed in Ottawa, Ontario, Canada, by the federal Department of Forestry and Rural Development. Developed by Roger Tomlinson, it was called the Canada Geographic Information System (CGIS) and was used to store, analyze, and manipulate data collected for the Canada Land Inventory, an effort to determine the land capability for rural Canada by mapping information about soils, agriculture, recreation, wildlife, waterfowl, forestry and land use at a scale of 1:50,000. A rating classification factor was also added to permit analysis. CGIS was an improvement over "computer mapping" applications as it provided capabilities for data storage, overlay, measurement, and digitizing/scanning. It supported a national coordinate system that spanned the continent, coded lines as arcs having a true embedded topology and it stored the attribute and locational information in separate files. As a result of this, Tomlinson has become known as the "father of GIS", particularly for his use of overlays in promoting the spatial analysis of convergent geographic data. CGIS lasted into the 1990s and built a large digital land resource database in Canada. It was developed as a mainframe-based system in support of federal and provincial resource planning and management. Its strength was continent-wide analysis of complex datasets. The CGIS was never available commercially. In 1964 Howard T. Fisher formed the Laboratory for Computer Graphics and Spatial Analysis at the Harvard Graduate School of Design (LCGSA 1965–1991), where a number of important theoretical concepts in spatial data handling were developed, and which by the 1970s had distributed seminal software code and systems, such as SYMAP, GRID, and ODYSSEY, to universities, research centers and corporations worldwide. These programs were the first examples of general purpose GIS software that was not developed for a particular installation, and was very influential on future commercial software, such as Esri ARC/INFO, released in 1983. By the late 1970s two public domain GIS systems (MOSS and GRASS GIS) were in development, and by the early 1980s, M&S Computing (later Intergraph) along with Bentley Systems Incorporated for the CAD platform, Environmental Systems Research Institute (ESRI), CARIS (Computer Aided Resource Information System), and ERDAS (Earth Resource Data Analysis System) emerged as commercial vendors of GIS software, successfully incorporating many of the CGIS features, combining the first generation approach to separation of spatial and attribute information with a second generation approach to organizing attribute data into database structures. In 1986, Mapping Display and Analysis System (MIDAS), the first desktop GIS product was released for the DOS operating system. This was renamed in 1990 to MapInfo for Windows when it was ported to the Microsoft Windows platform. This began the process of moving GIS from the research department into the business environment. By the end of the 20th century, the rapid growth in various systems had been consolidated and standardized on relatively few platforms and users were beginning to explore viewing GIS data over the Internet, requiring data format and transfer standards. More recently, a growing number of free, open-source GIS packages run on a range of operating systems and can be customized to perform specific tasks. The major trend of the 21st Century has been the integration of GIS capabilities with other Information technology and Internet infrastructure, such as relational databases, cloud computing, software as a service (SAAS), and mobile computing. The distinction must be made between a singular geographic information system, which is a single installation of software and data for a particular use, along with associated hardware, staff, and institutions (e.g., the GIS for a particular city government); and GIS software, a general-purpose application program that is intended to be used in many individual geographic information systems in a variety of application domains. Starting in the late 1970s, many software packages have been created specifically for GIS applications. Esri's ArcGIS, which includes ArcGIS Pro and the legacy software ArcMap, currently dominate the GIS Market. Other examples of GIS include Autodesk and MapInfo Professional and open source programs such as QGIS, GRASS GIS, MapGuide, and Hadoop-GIS. These and other desktop GIS applications include a full suite of capabilities for entering, managing, analyzing, and visualizing geographic data, and are designed to be used on their own. Starting in the late 1990s with the emergence of the Internet, as computer network technology progressed, GIS infrastructure and data began to move to servers, providing another mechanism for providing GIS capabilities. This was facilitated by standalone software installed on a server, similar to other server software such as HTTP servers and relational database management systems, enabling clients to have access to GIS data and processing tools without having to install specialized desktop software. These networks are known as distributed GIS. This strategy has been extended through the Internet and development of cloud-based GIS platforms such as ArcGIS Online and GIS-specialized software as a service (SAAS). The use of the Internet to facilitate distributed GIS is known as Internet GIS. An alternative approach is the integration of some or all of these capabilities into other software or information technology architectures. One example is a spatial extension to Object-relational database software, which defines a geometry datatype so that spatial data can be stored in relational tables, and extensions to SQL for spatial analysis operations such as overlay. Another example is the proliferation of geospatial libraries and application programming interfaces (e.g., GDAL, Leaflet, D3.js) that extend programming languages to enable the incorporation of GIS data and processing into custom software, including web mapping sites and location-based services in smartphones. The core of any GIS is a database that contains representations of geographic phenomena, modeling their geometry (location and shape) and their properties or attributes. A GIS database may be stored in a variety of forms, such as a collection of separate data files or a single spatially-enabled relational database. Collecting and managing these data usually constitutes the bulk of the time and financial resources of a project, far more than other aspects such as analysis and mapping. GIS uses spatio-temporal (space-time) location as the key index variable for all other information. Just as a relational database containing text or numbers can relate many different tables using common key index variables, GIS can relate otherwise unrelated information by using location as the key index variable. The key is the location and/or extent in space-time. Any variable that can be located spatially, and increasingly also temporally, can be referenced using a GIS. Locations or extents in Earth space–time may be recorded as dates/times of occurrence, and x, y, and z coordinates representing, longitude, latitude, and elevation, respectively. These GIS coordinates may represent other quantified systems of temporo-spatial reference (for example, film frame number, stream gage station, highway mile-marker, surveyor benchmark, building address, street intersection, entrance gate, water depth sounding, POS or CAD drawing origin/units). Units applied to recorded temporal-spatial data can vary widely (even when using exactly the same data, see map projections), but all Earth-based spatial–temporal location and extent references should, ideally, be relatable to one another and ultimately to a "real" physical location or extent in space–time. Related by accurate spatial information, an incredible variety of real-world and projected past or future data can be analyzed, interpreted and represented. This key characteristic of GIS has begun to open new avenues of scientific inquiry into behaviors and patterns of real-world information that previously had not been systematically correlated. GIS data represents phenomena that exist in the real world, such as roads, land use, elevation, trees, waterways, and states. The most common types of phenomena that are represented in data can be divided into two conceptualizations: discrete objects (e.g., a house, a road) and continuous fields (e.g., rainfall amount or population density). Other types of geographic phenomena, such as events (e.g., location of World War II battles), processes (e.g., extent of suburbanization), and masses (e.g., types of soil in an area) are represented less commonly or indirectly, or are modeled in analysis procedures rather than data. Traditionally, there are two broad methods used to store data in a GIS for both kinds of abstractions mapping references: raster images and vector. Points, lines, and polygons represent vector data of mapped location attribute references. A new hybrid method of storing data is that of identifying point clouds, which combine three-dimensional points with RGB information at each point, returning a "3D color image". GIS thematic maps then are becoming more and more realistically visually descriptive of what they set out to show or determine. GIS data acquisition includes several methods for gathering spatial data into a GIS database, which can be grouped into three categories: primary data capture, the direct measurement phenomena in the field (e.g., remote sensing, the global positioning system); secondary data capture, the extraction of information from existing sources that are not in a GIS form, such as paper maps, through digitization; and data transfer, the copying of existing GIS data from external sources such as government agencies and private companies. All of these methods can consume significant time, finances, and other resources. Survey data can be directly entered into a GIS from digital data collection systems on survey instruments using a technique called coordinate geometry (COGO). Positions from a global navigation satellite system (GNSS) like Global Positioning System can also be collected and then imported into a GIS. A current trend in data collection gives users the ability to utilize field computers with the ability to edit live data using wireless connections or disconnected editing sessions. Current trend is to utilize applications available on smartphones and PDAs - Mobile GIS. This has been enhanced by the availability of low-cost mapping-grade GPS units with decimeter accuracy in real time. This eliminates the need to post process, import, and update the data in the office after fieldwork has been collected. This includes the ability to incorporate positions collected using a laser rangefinder. New technologies also allow users to create maps as well as analysis directly in the field, making projects more efficient and mapping more accurate. Remotely sensed data also plays an important role in data collection and consist of sensors attached to a platform. Sensors include cameras, digital scanners and lidar, while platforms usually consist of aircraft and satellites. In England in the mid 1990s, hybrid kite/balloons called helikites first pioneered the use of compact airborne digital cameras as airborne geo-information systems. Aircraft measurement software, accurate to 0.4 mm was used to link the photographs and measure the ground. Helikites are inexpensive and gather more accurate data than aircraft. Helikites can be used over roads, railways and towns where unmanned aerial vehicles (UAVs) are banned. Recently aerial data collection has become more accessible with miniature UAVs and drones. For example, the Aeryon Scout was used to map a 50-acre area with a ground sample distance of 1 inch (2.54 cm) in only 12 minutes. The majority of digital data currently comes from photo interpretation of aerial photographs. Soft-copy workstations are used to digitize features directly from stereo pairs of digital photographs. These systems allow data to be captured in two and three dimensions, with elevations measured directly from a stereo pair using principles of photogrammetry. Analog aerial photos must be scanned before being entered into a soft-copy system, for high-quality digital cameras this step is skipped. Satellite remote sensing provides another important source of spatial data. Here satellites use different sensor packages to passively measure the reflectance from parts of the electromagnetic spectrum or radio waves that were sent out from an active sensor such as radar. Remote sensing collects raster data that can be further processed using different bands to identify objects and classes of interest, such as land cover. The most common method of data creation is digitization, where a hard copy map or survey plan is transferred into a digital medium through the use of a CAD program, and geo-referencing capabilities. With the wide availability of ortho-rectified imagery (from satellites, aircraft, Helikites and UAVs), heads-up digitizing is becoming the main avenue through which geographic data is extracted. Heads-up digitizing involves the tracing of geographic data directly on top of the aerial imagery instead of by the traditional method of tracing the geographic form on a separate digitizing tablet (heads-down digitizing). Heads-down digitizing, or manual digitizing, uses a special magnetic pen, or stylus, that feeds information into a computer to create an identical, digital map. Some tablets use a mouse-like tool, called a puck, instead of a stylus. The puck has a small window with cross-hairs which allows for greater precision and pinpointing map features. Though heads-up digitizing is more commonly used, heads-down digitizing is still useful for digitizing maps of poor quality. Existing data printed on paper or PET film maps can be digitized or scanned to produce digital data. A digitizer produces vector data as an operator traces points, lines, and polygon boundaries from a map. Scanning a map results in raster data that could be further processed to produce vector data. When data is captured, the user should consider if the data should be captured with either a relative accuracy or absolute accuracy, since this could not only influence how information will be interpreted but also the cost of data capture. After entering data into a GIS, the data usually requires editing, to remove errors, or further processing. For vector data it must be made "topologically correct" before it can be used for some advanced analysis. For example, in a road network, lines must connect with nodes at an intersection. Errors such as undershoots and overshoots must also be removed. For scanned maps, blemishes on the source map may need to be removed from the resulting raster. For example, a fleck of dirt might connect two lines that should not be connected. The earth can be represented by various models, each of which may provide a different set of coordinates (e.g., latitude, longitude, elevation) for any given point on the Earth's surface. The simplest model is to assume the earth is a perfect sphere. As more measurements of the earth have accumulated, the models of the earth have become more sophisticated and more accurate. In fact, there are models called datums that apply to different areas of the earth to provide increased accuracy, like North American Datum of 1983 for U.S. measurements, and the World Geodetic System for worldwide measurements. The latitude and longitude on a map made against a local datum may not be the same as one obtained from a GPS receiver. Converting coordinates from one datum to another requires a datum transformation such as a Helmert transformation, although in certain situations a simple translation may be sufficient. In popular GIS software, data projected in latitude/longitude is often represented as a Geographic coordinate system. For example, data in latitude/longitude if the datum is the 'North American Datum of 1983' is denoted by 'GCS North American 1983'. While no digital model can be a perfect representation of the real world, it is important that GIS data be of a high quality. In keeping with the principle of homomorphism, the data must be close enough to reality so that the results of GIS procedures correctly correspond to the results of real world processes. This means that there is no single standard for data quality, because the necessary degree of quality depends on the scale and purpose of the tasks for which it is to be used. Several elements of data quality are important to GIS data: GIS accuracy depends upon source data, and how it is encoded to be data referenced. Land surveyors have been able to provide a high level of positional accuracy utilizing the GPS-derived positions. High-resolution digital terrain and aerial imagery, powerful computers and Web technology are changing the quality, utility, and expectations of GIS to serve society on a grand scale, but nevertheless there are other source data that affect overall GIS accuracy like paper maps, though these may be of limited use in achieving the desired accuracy. In developing a digital topographic database for a GIS, topographical maps are the main source, and aerial photography and satellite imagery are extra sources for collecting data and identifying attributes which can be mapped in layers over a location facsimile of scale. The scale of a map and geographical rendering area representation type, or map projection, are very important aspects since the information content depends mainly on the scale set and resulting locatability of the map's representations. In order to digitize a map, the map has to be checked within theoretical dimensions, then scanned into a raster format, and resulting raster data has to be given a theoretical dimension by a rubber sheeting/warping technology process known as georeferencing. A quantitative analysis of maps brings accuracy issues into focus. The electronic and other equipment used to make measurements for GIS is far more precise than the machines of conventional map analysis. All geographical data are inherently inaccurate, and these inaccuracies will propagate through GIS operations in ways that are difficult to predict. Data restructuring can be performed by a GIS to convert data into different formats. For example, a GIS may be used to convert a satellite image map to a vector structure by generating lines around all cells with the same classification, while determining the cell spatial relationships, such as adjacency or inclusion. More advanced data processing can occur with image processing, a technique developed in the late 1960s by NASA and the private sector to provide contrast enhancement, false color rendering and a variety of other techniques including use of two dimensional Fourier transforms. Since digital data is collected and stored in various ways, the two data sources may not be entirely compatible. So a GIS must be able to convert geographic data from one structure to another. In so doing, the implicit assumptions behind different ontologies and classifications require analysis. Object ontologies have gained increasing prominence as a consequence of object-oriented programming and sustained work by Barry Smith and co-workers. Spatial ETL tools provide the data processing functionality of traditional extract, transform, load (ETL) software, but with a primary focus on the ability to manage spatial data. They provide GIS users with the ability to translate data between different standards and proprietary formats, whilst geometrically transforming the data en route. These tools can come in the form of add-ins to existing wider-purpose software such as spreadsheets. GIS spatial analysis is a rapidly changing field, and GIS packages are increasingly including analytical tools as standard built-in facilities, as optional toolsets, as add-ins or 'analysts'. In many instances these are provided by the original software suppliers (commercial vendors or collaborative non commercial development teams), while in other cases facilities have been developed and are provided by third parties. Furthermore, many products offer software development kits (SDKs), programming languages and language support, scripting facilities and/or special interfaces for developing one's own analytical tools or variants. The increased availability has created a new dimension to business intelligence termed "spatial intelligence" which, when openly delivered via intranet, democratizes access to geographic and social network data. Geospatial intelligence, based on GIS spatial analysis, has also become a key element for security. GIS as a whole can be described as conversion to a vectorial representation or to any other digitisation process. Geoprocessing is a GIS operation used to manipulate spatial data. A typical geoprocessing operation takes an input dataset, performs an operation on that dataset, and returns the result of the operation as an output dataset. Common geoprocessing operations include geographic feature overlay, feature selection and analysis, topology processing, raster processing, and data conversion. Geoprocessing allows for definition, management, and analysis of information used to form decisions. Many geographic tasks involve the terrain, the shape of the surface of the earth, such as hydrology, earthworks, and biogeography. Thus, terrain data is often a core dataset in a GIS, usually in the form of a raster Digital elevation model (DEM) or a Triangulated irregular network (TIN). A variety of tools are available in most GIS software for analyzing terrain, often by creating derivative datasets that represent a specific aspect of the surface. Some of the most common include: Most of these are generated using algorithms that are discrete simplifications of vector calculus. Slope, aspect, and surface curvature in terrain analysis are all derived from neighborhood operations using elevation values of a cell's adjacent neighbours. Each of these is strongly affected by the level of detail in the terrain data, such as the resolution of a DEM, which should be chosen carefully. Distance is a key part of solving many geographic tasks, usually due to the friction of distance. Thus, a wide variety of analysis tools have analyze distance in some form, such as buffers, Voronoi or Thiessen polygons, Cost distance analysis, and network analysis. It is difficult to relate wetlands maps to rainfall amounts recorded at different points such as airports, television stations, and schools. A GIS, however, can be used to depict two- and three-dimensional characteristics of the Earth's surface, subsurface, and atmosphere from information points. For example, a GIS can quickly generate a map with isopleth or contour lines that indicate differing amounts of rainfall. Such a map can be thought of as a rainfall contour map. Many sophisticated methods can estimate the characteristics of surfaces from a limited number of point measurements. A two-dimensional contour map created from the surface modeling of rainfall point measurements may be overlaid and analyzed with any other map in a GIS covering the same area. This GIS derived map can then provide additional information - such as the viability of water power potential as a renewable energy source. Similarly, GIS can be used to compare other renewable energy resources to find the best geographic potential for a region. Additionally, from a series of three-dimensional points, or digital elevation model, isopleth lines representing elevation contours can be generated, along with slope analysis, shaded relief, and other elevation products. Watersheds can be easily defined for any given reach, by computing all of the areas contiguous and uphill from any given point of interest. Similarly, an expected thalweg of where surface water would want to travel in intermittent and permanent streams can be computed from elevation data in the GIS. A GIS can recognize and analyze the spatial relationships that exist within digitally stored spatial data. These topological relationships allow complex spatial modelling and analysis to be performed. Topological relationships between geometric entities traditionally include adjacency (what adjoins what), containment (what encloses what), and proximity (how close something is to something else). Geometric networks are linear networks of objects that can be used to represent interconnected features, and to perform special spatial analysis on them. A geometric network is composed of edges, which are connected at junction points, similar to graphs in mathematics and computer science. Just like graphs, networks can have weight and flow assigned to its edges, which can be used to represent various interconnected features more accurately. Geometric networks are often used to model road networks and public utility networks, such as electric, gas, and water networks. Network modeling is also commonly employed in transportation planning, hydrology modeling, and infrastructure modeling. Dana Tomlin coined the term "cartographic modeling" in his PhD dissertation (1983); he later used it in the title of his book, Geographic Information Systems and Cartographic Modeling (1990). Cartographic modeling refers to a process where several thematic layers of the same area are produced, processed, and analyzed. Tomlin used raster layers, but the overlay method (see below) can be used more generally. Operations on map layers can be combined into algorithms, and eventually into simulation or optimization models. The combination of several spatial datasets (points, lines, or polygons) creates a new output vector dataset, visually similar to stacking several maps of the same region. These overlays are similar to mathematical Venn diagram overlays. A union overlay combines the geographic features and attribute tables of both inputs into a single new output. An intersect overlay defines the area where both inputs overlap and retains a set of attribute fields for each. A symmetric difference overlay defines an output area that includes the total area of both inputs except for the overlapping area. Data extraction is a GIS process similar to vector overlay, though it can be used in either vector or raster data analysis. Rather than combining the properties and features of both datasets, data extraction involves using a "clip" or "mask" to extract the features of one data set that fall within the spatial extent of another dataset. In raster data analysis, the overlay of datasets is accomplished through a process known as "local operation on multiple rasters" or "map algebra", through a function that combines the values of each raster's matrix. This function may weigh some inputs more than others through use of an "index model" that reflects the influence of various factors upon a geographic phenomenon. Geostatistics is a branch of statistics that deals with field data, spatial data with a continuous index. It provides methods to model spatial correlation, and predict values at arbitrary locations (interpolation). When phenomena are measured, the observation methods dictate the accuracy of any subsequent analysis. Due to the nature of the data (e.g. traffic patterns in an urban environment; weather patterns over the Pacific Ocean), a constant or dynamic degree of precision is always lost in the measurement. This loss of precision is determined from the scale and distribution of the data collection. To determine the statistical relevance of the analysis, an average is determined so that points (gradients) outside of any immediate measurement can be included to determine their predicted behavior. This is due to the limitations of the applied statistic and data collection methods, and interpolation is required to predict the behavior of particles, points, and locations that are not directly measurable. Interpolation is the process by which a surface is created, usually a raster dataset, through the input of data collected at a number of sample points. There are several forms of interpolation, each which treats the data differently, depending on the properties of the data set. In comparing interpolation methods, the first consideration should be whether or not the source data will change (exact or approximate). Next is whether the method is subjective, a human interpretation, or objective. Then there is the nature of transitions between points: are they abrupt or gradual. Finally, there is whether a method is global (it uses the entire data set to form the model), or local where an algorithm is repeated for a small section of terrain. Interpolation is a justified measurement because of a spatial autocorrelation principle that recognizes that data collected at any position will have a great similarity to, or influence of those locations within its immediate vicinity. Digital elevation models, triangulated irregular networks, edge-finding algorithms, Thiessen polygons, Fourier analysis, (weighted) moving averages, inverse distance weighting, kriging, spline, and trend surface analysis are all mathematical methods to produce interpolative data. Geocoding is interpolating spatial locations (X,Y coordinates) from street addresses or any other spatially referenced data such as ZIP Codes, parcel lots and address locations. A reference theme is required to geocode individual addresses, such as a road centerline file with address ranges. The individual address locations have historically been interpolated, or estimated, by examining address ranges along a road segment. These are usually provided in the form of a table or database. The software will then place a dot approximately where that address belongs along the segment of centerline. For example, an address point of 500 will be at the midpoint of a line segment that starts with address 1 and ends with address 1,000. Geocoding can also be applied against actual parcel data, typically from municipal tax maps. In this case, the result of the geocoding will be an actually positioned space as opposed to an interpolated point. This approach is being increasingly used to provide more precise location information. Reverse geocoding is the process of returning an estimated street address number as it relates to a given coordinate. For example, a user can click on a road centerline theme (thus providing a coordinate) and have information returned that reflects the estimated house number. This house number is interpolated from a range assigned to that road segment. If the user clicks at the midpoint of a segment that starts with address 1 and ends with 100, the returned value will be somewhere near 50. Note that reverse geocoding does not return actual addresses, only estimates of what should be there based on the predetermined range. Coupled with GIS, multi-criteria decision analysis methods support decision-makers in analysing a set of alternative spatial solutions, such as the most likely ecological habitat for restoration, against multiple criteria, such as vegetation cover or roads. MCDA uses decision rules to aggregate the criteria, which allows the alternative solutions to be ranked or prioritised. GIS MCDA may reduce costs and time involved in identifying potential restoration sites. GIS or spatial data mining is the application of data mining methods to spatial data. Data mining, which is the partially automated search for hidden patterns in large databases, offers great potential benefits for applied GIS-based decision making. Typical applications include environmental monitoring. A characteristic of such applications is that spatial correlation between data measurements require the use of specialized algorithms for more efficient data analysis. Cartography is the design and production of maps, or visual representations of spatial data. The vast majority of modern cartography is done with the help of computers, usually using GIS but production of quality cartography is also achieved by importing layers into a design program to refine it. Most GIS software gives the user substantial control over the appearance of the data. Cartographic work serves two major functions: First, it produces graphics on the screen or on paper that convey the results of analysis to the people who make decisions about resources. Wall maps and other graphics can be generated, allowing the viewer to visualize and thereby understand the results of analyses or simulations of potential events. Web Map Servers facilitate distribution of generated maps through web browsers using various implementations of web-based application programming interfaces (AJAX, Java, Flash, etc.). Second, other database information can be generated for further analysis or use. An example would be a list of all addresses within one mile (1.6 km) of a toxic spill. An archeochrome is a new way of displaying spatial data. It is a thematic on a 3D map that is applied to a specific building or a part of a building. It is suited to the visual display of heat-loss data. Traditional maps are abstractions of the real world, a sampling of important elements portrayed on a sheet of paper with symbols to represent physical objects. People who use maps must interpret these symbols. Topographic maps show the shape of land surface with contour lines or with shaded relief. Today, graphic display techniques such as shading based on altitude in a GIS can make relationships among map elements visible, heightening one's ability to extract and analyze information. For example, two types of data were combined in a GIS to produce a perspective view of a portion of San Mateo County, California. A GIS was used to register and combine the two images to render the three-dimensional perspective view looking down the San Andreas Fault, using the Thematic Mapper image pixels, but shaded using the elevation of the landforms. The GIS display depends on the viewing point of the observer and time of day of the display, to properly render the shadows created by the sun's rays at that latitude, longitude, and time of day. In recent years there has been a proliferation of free-to-use and easily accessible mapping software such as the proprietary web applications Google Maps and Bing Maps, as well as the free and open-source alternative OpenStreetMap. These services give the public access to huge amounts of geographic data, perceived by many users to be as trustworthy and usable as professional information. For example, during the COVID-19 pandemic, web maps hosted on dashboards were used to rapidly disseminate case data to the general public. Some of them, like Google Maps and OpenLayers, expose an application programming interface (API) that enable users to create custom applications. These toolkits commonly offer street maps, aerial/satellite imagery, geocoding, searches, and routing functionality. Web mapping has also uncovered the potential of crowdsourcing geodata in projects like OpenStreetMap, which is a collaborative project to create a free editable map of the world. These mashup projects have been proven to provide a high level of value and benefit to end users outside that possible through traditional geographic information. Web mapping is not without its drawbacks. Web mapping allows for the creation and distribution of maps by people without proper cartographic training. This has led to maps that ignore cartographic conventions and are potentially misleading, with one study finding that more than half of United States state government COVID-19 dashboards did not follow these conventions. Since its origin in the 1960s, GIS has been used in an ever-increasing range of applications, corroborating the widespread importance of location and aided by the continuing reduction in the barriers to adopting geospatial technology. The perhaps hundreds of different uses of GIS can be classified in several ways: The implementation of a GIS is often driven by jurisdictional (such as a city), purpose, or application requirements. Generally, a GIS implementation may be custom-designed for an organization. Hence, a GIS deployment developed for an application, jurisdiction, enterprise, or purpose may not be necessarily interoperable or compatible with a GIS that has been developed for some other application, jurisdiction, enterprise, or purpose. GIS is also diverging into location-based services, which allows GPS-enabled mobile devices to display their location in relation to fixed objects (nearest restaurant, gas station, fire hydrant) or mobile objects (friends, children, police car), or to relay their position back to a central server for display or other processing. The Open Geospatial Consortium (OGC) is an international industry consortium of 384 companies, government agencies, universities, and individuals participating in a consensus process to develop publicly available geoprocessing specifications. Open interfaces and protocols defined by OpenGIS Specifications support interoperable solutions that "geo-enable" the Web, wireless and location-based services, and mainstream IT, and empower technology developers to make complex spatial information and services accessible and useful with all kinds of applications. Open Geospatial Consortium protocols include Web Map Service, and Web Feature Service. GIS products are broken down by the OGC into two categories, based on how completely and accurately the software follows the OGC specifications. Compliant products are software products that comply to OGC's OpenGIS Specifications. When a product has been tested and certified as compliant through the OGC Testing Program, the product is automatically registered as "compliant" on this site. Implementing products are software products that implement OpenGIS Specifications but have not yet passed a compliance test. Compliance tests are not available for all specifications. Developers can register their products as implementing draft or approved specifications, though OGC reserves the right to review and verify each entry. The condition of the Earth's surface, atmosphere, and subsurface can be examined by feeding satellite data into a GIS. GIS technology gives researchers the ability to examine the variations in Earth processes over days, months, and years through the use of cartographic visualizations. As an example, the changes in vegetation vigor through a growing season can be animated to determine when drought was most extensive in a particular region. The resulting graphic represents a rough measure of plant health. Working with two variables over time would then allow researchers to detect regional differences in the lag between a decline in rainfall and its effect on vegetation. GIS technology and the availability of digital data on regional and global scales enable such analyses. The satellite sensor output used to generate a vegetation graphic is produced for example by the advanced very-high-resolution radiometer (AVHRR). This sensor system detects the amounts of energy reflected from the Earth's surface across various bands of the spectrum for surface areas of about 1 square kilometer. The satellite sensor produces images of a particular location on the Earth twice a day. AVHRR and more recently the moderate-resolution imaging spectroradiometer (MODIS) are only two of many sensor systems used for Earth surface analysis. In addition to the integration of time in environmental studies, GIS is also being explored for its ability to track and model the progress of humans throughout their daily routines. A concrete example of progress in this area is the recent release of time-specific population data by the U.S. Census. In this data set, the populations of cities are shown for daytime and evening hours highlighting the pattern of concentration and dispersion generated by North American commuting patterns. The manipulation and generation of data required to produce this data would not have been possible without GIS. Using models to project the data held by a GIS forward in time have enabled planners to test policy decisions using spatial decision support systems. Tools and technologies emerging from the World Wide Web Consortium's Semantic Web are proving useful for data integration problems in information systems. Correspondingly, such technologies have been proposed as a means to facilitate interoperability and data reuse among GIS applications and also to enable new analysis mechanisms. Ontologies are a key component of this semantic approach as they allow a formal, machine-readable specification of the concepts and relationships in a given domain. This in turn allows a GIS to focus on the intended meaning of data rather than its syntax or structure. For example, reasoning that a land cover type classified as deciduous needleleaf trees in one dataset is a specialization or subset of land cover type forest in another more roughly classified dataset can help a GIS automatically merge the two datasets under the more general land cover classification. Tentative ontologies have been developed in areas related to GIS applications, for example the hydrology ontology developed by the Ordnance Survey in the United Kingdom and the SWEET ontologies developed by NASA's Jet Propulsion Laboratory. Also, simpler ontologies and semantic metadata standards are being proposed by the W3C Geo Incubator Group to represent geospatial data on the web. GeoSPARQL is a standard developed by the Ordnance Survey, United States Geological Survey, Natural Resources Canada, Australia's Commonwealth Scientific and Industrial Research Organisation and others to support ontology creation and reasoning using well-understood OGC literals (GML, WKT), topological relationships (Simple Features, RCC8, DE-9IM), RDF and the SPARQL database query protocols. Recent research results in this area can be seen in the International Conference on Geospatial Semantics and the Terra Cognita – Directions to the Geospatial Semantic Web workshop at the International Semantic Web Conference. With the popularization of GIS in decision making, scholars have begun to scrutinize the social and political implications of GIS. GIS can also be misused to distort reality for individual and political gain. It has been argued that the production, distribution, utilization, and representation of geographic information are largely related with the social context and has the potential to increase citizen trust in government. Other related topics include discussion on copyright, privacy, and censorship. A more optimistic social approach to GIS adoption is to use it as a tool for public participation. At the end of the 20th century, GIS began to be recognized as tools that could be used in the classroom. The benefits of GIS in education seem focused on developing spatial cognition, but there is not enough bibliography or statistical data to show the concrete scope of the use of GIS in education around the world, although the expansion has been faster in those countries where the curriculum mentions them. GIS seem to provide many advantages in teaching geography because they allow for analyses based on real geographic data and also help raise many research questions from teachers and students in classrooms. They also contribute to improvement in learning by developing spatial and geographical thinking and, in many cases, student motivation. GIS is proven as an organization-wide, enterprise and enduring technology that continues to change how local government operates. Government agencies have adopted GIS technology as a method to better manage the following areas of government organization: The Open Data initiative is pushing local government to take advantage of technology such as GIS technology, as it encompasses the requirements to fit the Open Data/Open Government model of transparency. With Open Data, local government organizations can implement Citizen Engagement applications and online portals, allowing citizens to see land information, report potholes and signage issues, view and sort parks by assets, view real-time crime rates and utility repairs, and much more. The push for open data within government organizations is driving the growth in local government GIS technology spending, and database management.
[ { "paragraph_id": 0, "text": "A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. Much of this often happens within a spatial database, however, this is not essential to meet the definition of a GIS. In a broader sense, one may consider such a system also to include human users and support staff, procedures and workflows, the body of knowledge of relevant concepts and methods, and institutional organizations.", "title": "" }, { "paragraph_id": 1, "text": "The uncounted plural, geographic information systems, also abbreviated GIS, is the most common term for the industry and profession concerned with these systems. It is roughly synonymous with geoinformatics. The academic discipline that studies these systems and their underlying geographic principles, may also be abbreviated as GIS, but the unambiguous GIScience is more common. GIScience is often considered a subdiscipline of geography within the branch of technical geography.", "title": "" }, { "paragraph_id": 2, "text": "Geographic information systems are utilized in multiple technologies, processes, techniques and methods. They are attached to various operations and numerous applications, that relate to: engineering, planning, management, transport/logistics, insurance, telecommunications, and business. For this reason, GIS and location intelligence applications are at the foundation of location-enabled services, which rely on geographic analysis and visualization.", "title": "" }, { "paragraph_id": 3, "text": "GIS provides the capability to relate previously unrelated information, through the use of location as the \"key index variable\". Locations and extents that are found in the Earth's spacetime are able to be recorded through the date and time of occurrence, along with x, y, and z coordinates; representing, longitude (x), latitude (y), and elevation (z). All Earth-based, spatial–temporal, location and extent references should be relatable to one another, and ultimately, to a \"real\" physical location or extent. This key characteristic of GIS has begun to open new avenues of scientific inquiry and studies.", "title": "" }, { "paragraph_id": 4, "text": "While digital GIS dates to the mid-1960s, when Roger Tomlinson first coined the phrase \"geographic information system\", many of the geographic concepts and methods that GIS automates date back decades earlier.", "title": "History and development" }, { "paragraph_id": 5, "text": "One of the first known instances in which spatial analysis was used came from the field of epidemiology in the \"Rapport sur la marche et les effets du choléra dans Paris et le département de la Seine\" (1832). French geographer and cartographer, Charles Picquet created a map outlining the forty-eight Districts in Paris, using halftone color gradients, to provide a visual representation for the number of reported deaths due to cholera per every 1,000 inhabitants.", "title": "History and development" }, { "paragraph_id": 6, "text": "In 1854, John Snow, an epidemiologist and physician, was able to determine the source of a cholera outbreak in London through the use of spatial analysis. Snow achieved this through plotting the residence of each casualty on a map of the area, as well as the nearby water sources. Once these points were marked, he was able to identify the water source within the cluster that was responsible for the outbreak. This was one of the earliest successful uses of a geographic methodology in pinpointing the source of an outbreak in epidemiology. While the basic elements of topography and theme existed previously in cartography, Snow's map was unique due to his use of cartographic methods, not only to depict, but also to analyze clusters of geographically dependent phenomena.", "title": "History and development" }, { "paragraph_id": 7, "text": "The early 20th century saw the development of photozincography, which allowed maps to be split into layers, for example one layer for vegetation and another for water. This was particularly used for printing contours – drawing these was a labour-intensive task but having them on a separate layer meant they could be worked on without the other layers to confuse the draughtsman. This work was initially drawn on glass plates, but later plastic film was introduced, with the advantages of being lighter, using less storage space and being less brittle, among others. When all the layers were finished, they were combined into one image using a large process camera. Once color printing came in, the layers idea was also used for creating separate printing plates for each color. While the use of layers much later became one of the typical features of a contemporary GIS, the photographic process just described is not considered a GIS in itself -– as the maps were just images with no database to link them to.", "title": "History and development" }, { "paragraph_id": 8, "text": "Two additional developments are notable in the early days of GIS: Ian McHarg's publication \"Design with Nature\" and its map overlay method and the introduction of a street network into the U.S. Census Bureau's DIME (Dual Independent Map Encoding) system.", "title": "History and development" }, { "paragraph_id": 9, "text": "The first publication detailing the use of computers to facilitate cartography was written by Waldo Tobler in 1959. Further computer hardware development spurred by nuclear weapon research led to more widespread general-purpose computer \"mapping\" applications by the early 1960s.", "title": "History and development" }, { "paragraph_id": 10, "text": "In 1960 the world's first true operational GIS was developed in Ottawa, Ontario, Canada, by the federal Department of Forestry and Rural Development. Developed by Roger Tomlinson, it was called the Canada Geographic Information System (CGIS) and was used to store, analyze, and manipulate data collected for the Canada Land Inventory, an effort to determine the land capability for rural Canada by mapping information about soils, agriculture, recreation, wildlife, waterfowl, forestry and land use at a scale of 1:50,000. A rating classification factor was also added to permit analysis.", "title": "History and development" }, { "paragraph_id": 11, "text": "CGIS was an improvement over \"computer mapping\" applications as it provided capabilities for data storage, overlay, measurement, and digitizing/scanning. It supported a national coordinate system that spanned the continent, coded lines as arcs having a true embedded topology and it stored the attribute and locational information in separate files. As a result of this, Tomlinson has become known as the \"father of GIS\", particularly for his use of overlays in promoting the spatial analysis of convergent geographic data. CGIS lasted into the 1990s and built a large digital land resource database in Canada. It was developed as a mainframe-based system in support of federal and provincial resource planning and management. Its strength was continent-wide analysis of complex datasets. The CGIS was never available commercially.", "title": "History and development" }, { "paragraph_id": 12, "text": "In 1964 Howard T. Fisher formed the Laboratory for Computer Graphics and Spatial Analysis at the Harvard Graduate School of Design (LCGSA 1965–1991), where a number of important theoretical concepts in spatial data handling were developed, and which by the 1970s had distributed seminal software code and systems, such as SYMAP, GRID, and ODYSSEY, to universities, research centers and corporations worldwide. These programs were the first examples of general purpose GIS software that was not developed for a particular installation, and was very influential on future commercial software, such as Esri ARC/INFO, released in 1983.", "title": "History and development" }, { "paragraph_id": 13, "text": "By the late 1970s two public domain GIS systems (MOSS and GRASS GIS) were in development, and by the early 1980s, M&S Computing (later Intergraph) along with Bentley Systems Incorporated for the CAD platform, Environmental Systems Research Institute (ESRI), CARIS (Computer Aided Resource Information System), and ERDAS (Earth Resource Data Analysis System) emerged as commercial vendors of GIS software, successfully incorporating many of the CGIS features, combining the first generation approach to separation of spatial and attribute information with a second generation approach to organizing attribute data into database structures.", "title": "History and development" }, { "paragraph_id": 14, "text": "In 1986, Mapping Display and Analysis System (MIDAS), the first desktop GIS product was released for the DOS operating system. This was renamed in 1990 to MapInfo for Windows when it was ported to the Microsoft Windows platform. This began the process of moving GIS from the research department into the business environment.", "title": "History and development" }, { "paragraph_id": 15, "text": "By the end of the 20th century, the rapid growth in various systems had been consolidated and standardized on relatively few platforms and users were beginning to explore viewing GIS data over the Internet, requiring data format and transfer standards. More recently, a growing number of free, open-source GIS packages run on a range of operating systems and can be customized to perform specific tasks. The major trend of the 21st Century has been the integration of GIS capabilities with other Information technology and Internet infrastructure, such as relational databases, cloud computing, software as a service (SAAS), and mobile computing.", "title": "History and development" }, { "paragraph_id": 16, "text": "The distinction must be made between a singular geographic information system, which is a single installation of software and data for a particular use, along with associated hardware, staff, and institutions (e.g., the GIS for a particular city government); and GIS software, a general-purpose application program that is intended to be used in many individual geographic information systems in a variety of application domains. Starting in the late 1970s, many software packages have been created specifically for GIS applications. Esri's ArcGIS, which includes ArcGIS Pro and the legacy software ArcMap, currently dominate the GIS Market. Other examples of GIS include Autodesk and MapInfo Professional and open source programs such as QGIS, GRASS GIS, MapGuide, and Hadoop-GIS. These and other desktop GIS applications include a full suite of capabilities for entering, managing, analyzing, and visualizing geographic data, and are designed to be used on their own.", "title": "GIS software" }, { "paragraph_id": 17, "text": "Starting in the late 1990s with the emergence of the Internet, as computer network technology progressed, GIS infrastructure and data began to move to servers, providing another mechanism for providing GIS capabilities. This was facilitated by standalone software installed on a server, similar to other server software such as HTTP servers and relational database management systems, enabling clients to have access to GIS data and processing tools without having to install specialized desktop software. These networks are known as distributed GIS. This strategy has been extended through the Internet and development of cloud-based GIS platforms such as ArcGIS Online and GIS-specialized software as a service (SAAS). The use of the Internet to facilitate distributed GIS is known as Internet GIS.", "title": "GIS software" }, { "paragraph_id": 18, "text": "An alternative approach is the integration of some or all of these capabilities into other software or information technology architectures. One example is a spatial extension to Object-relational database software, which defines a geometry datatype so that spatial data can be stored in relational tables, and extensions to SQL for spatial analysis operations such as overlay. Another example is the proliferation of geospatial libraries and application programming interfaces (e.g., GDAL, Leaflet, D3.js) that extend programming languages to enable the incorporation of GIS data and processing into custom software, including web mapping sites and location-based services in smartphones.", "title": "GIS software" }, { "paragraph_id": 19, "text": "The core of any GIS is a database that contains representations of geographic phenomena, modeling their geometry (location and shape) and their properties or attributes. A GIS database may be stored in a variety of forms, such as a collection of separate data files or a single spatially-enabled relational database. Collecting and managing these data usually constitutes the bulk of the time and financial resources of a project, far more than other aspects such as analysis and mapping.", "title": "Geospatial data management" }, { "paragraph_id": 20, "text": "GIS uses spatio-temporal (space-time) location as the key index variable for all other information. Just as a relational database containing text or numbers can relate many different tables using common key index variables, GIS can relate otherwise unrelated information by using location as the key index variable. The key is the location and/or extent in space-time.", "title": "Geospatial data management" }, { "paragraph_id": 21, "text": "Any variable that can be located spatially, and increasingly also temporally, can be referenced using a GIS. Locations or extents in Earth space–time may be recorded as dates/times of occurrence, and x, y, and z coordinates representing, longitude, latitude, and elevation, respectively. These GIS coordinates may represent other quantified systems of temporo-spatial reference (for example, film frame number, stream gage station, highway mile-marker, surveyor benchmark, building address, street intersection, entrance gate, water depth sounding, POS or CAD drawing origin/units). Units applied to recorded temporal-spatial data can vary widely (even when using exactly the same data, see map projections), but all Earth-based spatial–temporal location and extent references should, ideally, be relatable to one another and ultimately to a \"real\" physical location or extent in space–time.", "title": "Geospatial data management" }, { "paragraph_id": 22, "text": "Related by accurate spatial information, an incredible variety of real-world and projected past or future data can be analyzed, interpreted and represented. This key characteristic of GIS has begun to open new avenues of scientific inquiry into behaviors and patterns of real-world information that previously had not been systematically correlated.", "title": "Geospatial data management" }, { "paragraph_id": 23, "text": "GIS data represents phenomena that exist in the real world, such as roads, land use, elevation, trees, waterways, and states. The most common types of phenomena that are represented in data can be divided into two conceptualizations: discrete objects (e.g., a house, a road) and continuous fields (e.g., rainfall amount or population density). Other types of geographic phenomena, such as events (e.g., location of World War II battles), processes (e.g., extent of suburbanization), and masses (e.g., types of soil in an area) are represented less commonly or indirectly, or are modeled in analysis procedures rather than data.", "title": "Geospatial data management" }, { "paragraph_id": 24, "text": "Traditionally, there are two broad methods used to store data in a GIS for both kinds of abstractions mapping references: raster images and vector. Points, lines, and polygons represent vector data of mapped location attribute references.", "title": "Geospatial data management" }, { "paragraph_id": 25, "text": "A new hybrid method of storing data is that of identifying point clouds, which combine three-dimensional points with RGB information at each point, returning a \"3D color image\". GIS thematic maps then are becoming more and more realistically visually descriptive of what they set out to show or determine.", "title": "Geospatial data management" }, { "paragraph_id": 26, "text": "GIS data acquisition includes several methods for gathering spatial data into a GIS database, which can be grouped into three categories: primary data capture, the direct measurement phenomena in the field (e.g., remote sensing, the global positioning system); secondary data capture, the extraction of information from existing sources that are not in a GIS form, such as paper maps, through digitization; and data transfer, the copying of existing GIS data from external sources such as government agencies and private companies. All of these methods can consume significant time, finances, and other resources.", "title": "Geospatial data management" }, { "paragraph_id": 27, "text": "Survey data can be directly entered into a GIS from digital data collection systems on survey instruments using a technique called coordinate geometry (COGO). Positions from a global navigation satellite system (GNSS) like Global Positioning System can also be collected and then imported into a GIS. A current trend in data collection gives users the ability to utilize field computers with the ability to edit live data using wireless connections or disconnected editing sessions. Current trend is to utilize applications available on smartphones and PDAs - Mobile GIS. This has been enhanced by the availability of low-cost mapping-grade GPS units with decimeter accuracy in real time. This eliminates the need to post process, import, and update the data in the office after fieldwork has been collected. This includes the ability to incorporate positions collected using a laser rangefinder. New technologies also allow users to create maps as well as analysis directly in the field, making projects more efficient and mapping more accurate.", "title": "Geospatial data management" }, { "paragraph_id": 28, "text": "Remotely sensed data also plays an important role in data collection and consist of sensors attached to a platform. Sensors include cameras, digital scanners and lidar, while platforms usually consist of aircraft and satellites. In England in the mid 1990s, hybrid kite/balloons called helikites first pioneered the use of compact airborne digital cameras as airborne geo-information systems. Aircraft measurement software, accurate to 0.4 mm was used to link the photographs and measure the ground. Helikites are inexpensive and gather more accurate data than aircraft. Helikites can be used over roads, railways and towns where unmanned aerial vehicles (UAVs) are banned.", "title": "Geospatial data management" }, { "paragraph_id": 29, "text": "Recently aerial data collection has become more accessible with miniature UAVs and drones. For example, the Aeryon Scout was used to map a 50-acre area with a ground sample distance of 1 inch (2.54 cm) in only 12 minutes.", "title": "Geospatial data management" }, { "paragraph_id": 30, "text": "The majority of digital data currently comes from photo interpretation of aerial photographs. Soft-copy workstations are used to digitize features directly from stereo pairs of digital photographs. These systems allow data to be captured in two and three dimensions, with elevations measured directly from a stereo pair using principles of photogrammetry. Analog aerial photos must be scanned before being entered into a soft-copy system, for high-quality digital cameras this step is skipped.", "title": "Geospatial data management" }, { "paragraph_id": 31, "text": "Satellite remote sensing provides another important source of spatial data. Here satellites use different sensor packages to passively measure the reflectance from parts of the electromagnetic spectrum or radio waves that were sent out from an active sensor such as radar. Remote sensing collects raster data that can be further processed using different bands to identify objects and classes of interest, such as land cover.", "title": "Geospatial data management" }, { "paragraph_id": 32, "text": "The most common method of data creation is digitization, where a hard copy map or survey plan is transferred into a digital medium through the use of a CAD program, and geo-referencing capabilities. With the wide availability of ortho-rectified imagery (from satellites, aircraft, Helikites and UAVs), heads-up digitizing is becoming the main avenue through which geographic data is extracted. Heads-up digitizing involves the tracing of geographic data directly on top of the aerial imagery instead of by the traditional method of tracing the geographic form on a separate digitizing tablet (heads-down digitizing). Heads-down digitizing, or manual digitizing, uses a special magnetic pen, or stylus, that feeds information into a computer to create an identical, digital map. Some tablets use a mouse-like tool, called a puck, instead of a stylus. The puck has a small window with cross-hairs which allows for greater precision and pinpointing map features. Though heads-up digitizing is more commonly used, heads-down digitizing is still useful for digitizing maps of poor quality.", "title": "Geospatial data management" }, { "paragraph_id": 33, "text": "Existing data printed on paper or PET film maps can be digitized or scanned to produce digital data. A digitizer produces vector data as an operator traces points, lines, and polygon boundaries from a map. Scanning a map results in raster data that could be further processed to produce vector data.", "title": "Geospatial data management" }, { "paragraph_id": 34, "text": "When data is captured, the user should consider if the data should be captured with either a relative accuracy or absolute accuracy, since this could not only influence how information will be interpreted but also the cost of data capture.", "title": "Geospatial data management" }, { "paragraph_id": 35, "text": "After entering data into a GIS, the data usually requires editing, to remove errors, or further processing. For vector data it must be made \"topologically correct\" before it can be used for some advanced analysis. For example, in a road network, lines must connect with nodes at an intersection. Errors such as undershoots and overshoots must also be removed. For scanned maps, blemishes on the source map may need to be removed from the resulting raster. For example, a fleck of dirt might connect two lines that should not be connected.", "title": "Geospatial data management" }, { "paragraph_id": 36, "text": "The earth can be represented by various models, each of which may provide a different set of coordinates (e.g., latitude, longitude, elevation) for any given point on the Earth's surface. The simplest model is to assume the earth is a perfect sphere. As more measurements of the earth have accumulated, the models of the earth have become more sophisticated and more accurate. In fact, there are models called datums that apply to different areas of the earth to provide increased accuracy, like North American Datum of 1983 for U.S. measurements, and the World Geodetic System for worldwide measurements.", "title": "Geospatial data management" }, { "paragraph_id": 37, "text": "The latitude and longitude on a map made against a local datum may not be the same as one obtained from a GPS receiver. Converting coordinates from one datum to another requires a datum transformation such as a Helmert transformation, although in certain situations a simple translation may be sufficient.", "title": "Geospatial data management" }, { "paragraph_id": 38, "text": "In popular GIS software, data projected in latitude/longitude is often represented as a Geographic coordinate system. For example, data in latitude/longitude if the datum is the 'North American Datum of 1983' is denoted by 'GCS North American 1983'.", "title": "Geospatial data management" }, { "paragraph_id": 39, "text": "While no digital model can be a perfect representation of the real world, it is important that GIS data be of a high quality. In keeping with the principle of homomorphism, the data must be close enough to reality so that the results of GIS procedures correctly correspond to the results of real world processes. This means that there is no single standard for data quality, because the necessary degree of quality depends on the scale and purpose of the tasks for which it is to be used. Several elements of data quality are important to GIS data:", "title": "Geospatial data management" }, { "paragraph_id": 40, "text": "GIS accuracy depends upon source data, and how it is encoded to be data referenced. Land surveyors have been able to provide a high level of positional accuracy utilizing the GPS-derived positions. High-resolution digital terrain and aerial imagery, powerful computers and Web technology are changing the quality, utility, and expectations of GIS to serve society on a grand scale, but nevertheless there are other source data that affect overall GIS accuracy like paper maps, though these may be of limited use in achieving the desired accuracy.", "title": "Geospatial data management" }, { "paragraph_id": 41, "text": "In developing a digital topographic database for a GIS, topographical maps are the main source, and aerial photography and satellite imagery are extra sources for collecting data and identifying attributes which can be mapped in layers over a location facsimile of scale. The scale of a map and geographical rendering area representation type, or map projection, are very important aspects since the information content depends mainly on the scale set and resulting locatability of the map's representations. In order to digitize a map, the map has to be checked within theoretical dimensions, then scanned into a raster format, and resulting raster data has to be given a theoretical dimension by a rubber sheeting/warping technology process known as georeferencing.", "title": "Geospatial data management" }, { "paragraph_id": 42, "text": "A quantitative analysis of maps brings accuracy issues into focus. The electronic and other equipment used to make measurements for GIS is far more precise than the machines of conventional map analysis. All geographical data are inherently inaccurate, and these inaccuracies will propagate through GIS operations in ways that are difficult to predict.", "title": "Geospatial data management" }, { "paragraph_id": 43, "text": "Data restructuring can be performed by a GIS to convert data into different formats. For example, a GIS may be used to convert a satellite image map to a vector structure by generating lines around all cells with the same classification, while determining the cell spatial relationships, such as adjacency or inclusion.", "title": "Geospatial data management" }, { "paragraph_id": 44, "text": "More advanced data processing can occur with image processing, a technique developed in the late 1960s by NASA and the private sector to provide contrast enhancement, false color rendering and a variety of other techniques including use of two dimensional Fourier transforms. Since digital data is collected and stored in various ways, the two data sources may not be entirely compatible. So a GIS must be able to convert geographic data from one structure to another. In so doing, the implicit assumptions behind different ontologies and classifications require analysis. Object ontologies have gained increasing prominence as a consequence of object-oriented programming and sustained work by Barry Smith and co-workers.", "title": "Geospatial data management" }, { "paragraph_id": 45, "text": "Spatial ETL tools provide the data processing functionality of traditional extract, transform, load (ETL) software, but with a primary focus on the ability to manage spatial data. They provide GIS users with the ability to translate data between different standards and proprietary formats, whilst geometrically transforming the data en route. These tools can come in the form of add-ins to existing wider-purpose software such as spreadsheets.", "title": "Geospatial data management" }, { "paragraph_id": 46, "text": "GIS spatial analysis is a rapidly changing field, and GIS packages are increasingly including analytical tools as standard built-in facilities, as optional toolsets, as add-ins or 'analysts'. In many instances these are provided by the original software suppliers (commercial vendors or collaborative non commercial development teams), while in other cases facilities have been developed and are provided by third parties. Furthermore, many products offer software development kits (SDKs), programming languages and language support, scripting facilities and/or special interfaces for developing one's own analytical tools or variants. The increased availability has created a new dimension to business intelligence termed \"spatial intelligence\" which, when openly delivered via intranet, democratizes access to geographic and social network data. Geospatial intelligence, based on GIS spatial analysis, has also become a key element for security. GIS as a whole can be described as conversion to a vectorial representation or to any other digitisation process.", "title": "Spatial analysis" }, { "paragraph_id": 47, "text": "Geoprocessing is a GIS operation used to manipulate spatial data. A typical geoprocessing operation takes an input dataset, performs an operation on that dataset, and returns the result of the operation as an output dataset. Common geoprocessing operations include geographic feature overlay, feature selection and analysis, topology processing, raster processing, and data conversion. Geoprocessing allows for definition, management, and analysis of information used to form decisions.", "title": "Spatial analysis" }, { "paragraph_id": 48, "text": "Many geographic tasks involve the terrain, the shape of the surface of the earth, such as hydrology, earthworks, and biogeography. Thus, terrain data is often a core dataset in a GIS, usually in the form of a raster Digital elevation model (DEM) or a Triangulated irregular network (TIN). A variety of tools are available in most GIS software for analyzing terrain, often by creating derivative datasets that represent a specific aspect of the surface. Some of the most common include:", "title": "Spatial analysis" }, { "paragraph_id": 49, "text": "Most of these are generated using algorithms that are discrete simplifications of vector calculus. Slope, aspect, and surface curvature in terrain analysis are all derived from neighborhood operations using elevation values of a cell's adjacent neighbours. Each of these is strongly affected by the level of detail in the terrain data, such as the resolution of a DEM, which should be chosen carefully.", "title": "Spatial analysis" }, { "paragraph_id": 50, "text": "Distance is a key part of solving many geographic tasks, usually due to the friction of distance. Thus, a wide variety of analysis tools have analyze distance in some form, such as buffers, Voronoi or Thiessen polygons, Cost distance analysis, and network analysis.", "title": "Spatial analysis" }, { "paragraph_id": 51, "text": "It is difficult to relate wetlands maps to rainfall amounts recorded at different points such as airports, television stations, and schools. A GIS, however, can be used to depict two- and three-dimensional characteristics of the Earth's surface, subsurface, and atmosphere from information points. For example, a GIS can quickly generate a map with isopleth or contour lines that indicate differing amounts of rainfall. Such a map can be thought of as a rainfall contour map. Many sophisticated methods can estimate the characteristics of surfaces from a limited number of point measurements. A two-dimensional contour map created from the surface modeling of rainfall point measurements may be overlaid and analyzed with any other map in a GIS covering the same area. This GIS derived map can then provide additional information - such as the viability of water power potential as a renewable energy source. Similarly, GIS can be used to compare other renewable energy resources to find the best geographic potential for a region.", "title": "Spatial analysis" }, { "paragraph_id": 52, "text": "Additionally, from a series of three-dimensional points, or digital elevation model, isopleth lines representing elevation contours can be generated, along with slope analysis, shaded relief, and other elevation products. Watersheds can be easily defined for any given reach, by computing all of the areas contiguous and uphill from any given point of interest. Similarly, an expected thalweg of where surface water would want to travel in intermittent and permanent streams can be computed from elevation data in the GIS.", "title": "Spatial analysis" }, { "paragraph_id": 53, "text": "A GIS can recognize and analyze the spatial relationships that exist within digitally stored spatial data. These topological relationships allow complex spatial modelling and analysis to be performed. Topological relationships between geometric entities traditionally include adjacency (what adjoins what), containment (what encloses what), and proximity (how close something is to something else).", "title": "Spatial analysis" }, { "paragraph_id": 54, "text": "Geometric networks are linear networks of objects that can be used to represent interconnected features, and to perform special spatial analysis on them. A geometric network is composed of edges, which are connected at junction points, similar to graphs in mathematics and computer science. Just like graphs, networks can have weight and flow assigned to its edges, which can be used to represent various interconnected features more accurately. Geometric networks are often used to model road networks and public utility networks, such as electric, gas, and water networks. Network modeling is also commonly employed in transportation planning, hydrology modeling, and infrastructure modeling.", "title": "Spatial analysis" }, { "paragraph_id": 55, "text": "Dana Tomlin coined the term \"cartographic modeling\" in his PhD dissertation (1983); he later used it in the title of his book, Geographic Information Systems and Cartographic Modeling (1990). Cartographic modeling refers to a process where several thematic layers of the same area are produced, processed, and analyzed. Tomlin used raster layers, but the overlay method (see below) can be used more generally. Operations on map layers can be combined into algorithms, and eventually into simulation or optimization models.", "title": "Spatial analysis" }, { "paragraph_id": 56, "text": "The combination of several spatial datasets (points, lines, or polygons) creates a new output vector dataset, visually similar to stacking several maps of the same region. These overlays are similar to mathematical Venn diagram overlays. A union overlay combines the geographic features and attribute tables of both inputs into a single new output. An intersect overlay defines the area where both inputs overlap and retains a set of attribute fields for each. A symmetric difference overlay defines an output area that includes the total area of both inputs except for the overlapping area.", "title": "Spatial analysis" }, { "paragraph_id": 57, "text": "Data extraction is a GIS process similar to vector overlay, though it can be used in either vector or raster data analysis. Rather than combining the properties and features of both datasets, data extraction involves using a \"clip\" or \"mask\" to extract the features of one data set that fall within the spatial extent of another dataset.", "title": "Spatial analysis" }, { "paragraph_id": 58, "text": "In raster data analysis, the overlay of datasets is accomplished through a process known as \"local operation on multiple rasters\" or \"map algebra\", through a function that combines the values of each raster's matrix. This function may weigh some inputs more than others through use of an \"index model\" that reflects the influence of various factors upon a geographic phenomenon.", "title": "Spatial analysis" }, { "paragraph_id": 59, "text": "Geostatistics is a branch of statistics that deals with field data, spatial data with a continuous index. It provides methods to model spatial correlation, and predict values at arbitrary locations (interpolation).", "title": "Spatial analysis" }, { "paragraph_id": 60, "text": "When phenomena are measured, the observation methods dictate the accuracy of any subsequent analysis. Due to the nature of the data (e.g. traffic patterns in an urban environment; weather patterns over the Pacific Ocean), a constant or dynamic degree of precision is always lost in the measurement. This loss of precision is determined from the scale and distribution of the data collection.", "title": "Spatial analysis" }, { "paragraph_id": 61, "text": "To determine the statistical relevance of the analysis, an average is determined so that points (gradients) outside of any immediate measurement can be included to determine their predicted behavior. This is due to the limitations of the applied statistic and data collection methods, and interpolation is required to predict the behavior of particles, points, and locations that are not directly measurable.", "title": "Spatial analysis" }, { "paragraph_id": 62, "text": "Interpolation is the process by which a surface is created, usually a raster dataset, through the input of data collected at a number of sample points. There are several forms of interpolation, each which treats the data differently, depending on the properties of the data set. In comparing interpolation methods, the first consideration should be whether or not the source data will change (exact or approximate). Next is whether the method is subjective, a human interpretation, or objective. Then there is the nature of transitions between points: are they abrupt or gradual. Finally, there is whether a method is global (it uses the entire data set to form the model), or local where an algorithm is repeated for a small section of terrain.", "title": "Spatial analysis" }, { "paragraph_id": 63, "text": "Interpolation is a justified measurement because of a spatial autocorrelation principle that recognizes that data collected at any position will have a great similarity to, or influence of those locations within its immediate vicinity.", "title": "Spatial analysis" }, { "paragraph_id": 64, "text": "Digital elevation models, triangulated irregular networks, edge-finding algorithms, Thiessen polygons, Fourier analysis, (weighted) moving averages, inverse distance weighting, kriging, spline, and trend surface analysis are all mathematical methods to produce interpolative data.", "title": "Spatial analysis" }, { "paragraph_id": 65, "text": "Geocoding is interpolating spatial locations (X,Y coordinates) from street addresses or any other spatially referenced data such as ZIP Codes, parcel lots and address locations. A reference theme is required to geocode individual addresses, such as a road centerline file with address ranges. The individual address locations have historically been interpolated, or estimated, by examining address ranges along a road segment. These are usually provided in the form of a table or database. The software will then place a dot approximately where that address belongs along the segment of centerline. For example, an address point of 500 will be at the midpoint of a line segment that starts with address 1 and ends with address 1,000. Geocoding can also be applied against actual parcel data, typically from municipal tax maps. In this case, the result of the geocoding will be an actually positioned space as opposed to an interpolated point. This approach is being increasingly used to provide more precise location information.", "title": "Spatial analysis" }, { "paragraph_id": 66, "text": "Reverse geocoding is the process of returning an estimated street address number as it relates to a given coordinate. For example, a user can click on a road centerline theme (thus providing a coordinate) and have information returned that reflects the estimated house number. This house number is interpolated from a range assigned to that road segment. If the user clicks at the midpoint of a segment that starts with address 1 and ends with 100, the returned value will be somewhere near 50. Note that reverse geocoding does not return actual addresses, only estimates of what should be there based on the predetermined range.", "title": "Spatial analysis" }, { "paragraph_id": 67, "text": "Coupled with GIS, multi-criteria decision analysis methods support decision-makers in analysing a set of alternative spatial solutions, such as the most likely ecological habitat for restoration, against multiple criteria, such as vegetation cover or roads. MCDA uses decision rules to aggregate the criteria, which allows the alternative solutions to be ranked or prioritised. GIS MCDA may reduce costs and time involved in identifying potential restoration sites.", "title": "Spatial analysis" }, { "paragraph_id": 68, "text": "GIS or spatial data mining is the application of data mining methods to spatial data. Data mining, which is the partially automated search for hidden patterns in large databases, offers great potential benefits for applied GIS-based decision making. Typical applications include environmental monitoring. A characteristic of such applications is that spatial correlation between data measurements require the use of specialized algorithms for more efficient data analysis.", "title": "Spatial analysis" }, { "paragraph_id": 69, "text": "Cartography is the design and production of maps, or visual representations of spatial data. The vast majority of modern cartography is done with the help of computers, usually using GIS but production of quality cartography is also achieved by importing layers into a design program to refine it. Most GIS software gives the user substantial control over the appearance of the data.", "title": "Data output and cartography" }, { "paragraph_id": 70, "text": "Cartographic work serves two major functions:", "title": "Data output and cartography" }, { "paragraph_id": 71, "text": "First, it produces graphics on the screen or on paper that convey the results of analysis to the people who make decisions about resources. Wall maps and other graphics can be generated, allowing the viewer to visualize and thereby understand the results of analyses or simulations of potential events. Web Map Servers facilitate distribution of generated maps through web browsers using various implementations of web-based application programming interfaces (AJAX, Java, Flash, etc.).", "title": "Data output and cartography" }, { "paragraph_id": 72, "text": "Second, other database information can be generated for further analysis or use. An example would be a list of all addresses within one mile (1.6 km) of a toxic spill.", "title": "Data output and cartography" }, { "paragraph_id": 73, "text": "An archeochrome is a new way of displaying spatial data. It is a thematic on a 3D map that is applied to a specific building or a part of a building. It is suited to the visual display of heat-loss data.", "title": "Data output and cartography" }, { "paragraph_id": 74, "text": "Traditional maps are abstractions of the real world, a sampling of important elements portrayed on a sheet of paper with symbols to represent physical objects. People who use maps must interpret these symbols. Topographic maps show the shape of land surface with contour lines or with shaded relief.", "title": "Data output and cartography" }, { "paragraph_id": 75, "text": "Today, graphic display techniques such as shading based on altitude in a GIS can make relationships among map elements visible, heightening one's ability to extract and analyze information. For example, two types of data were combined in a GIS to produce a perspective view of a portion of San Mateo County, California.", "title": "Data output and cartography" }, { "paragraph_id": 76, "text": "A GIS was used to register and combine the two images to render the three-dimensional perspective view looking down the San Andreas Fault, using the Thematic Mapper image pixels, but shaded using the elevation of the landforms. The GIS display depends on the viewing point of the observer and time of day of the display, to properly render the shadows created by the sun's rays at that latitude, longitude, and time of day.", "title": "Data output and cartography" }, { "paragraph_id": 77, "text": "In recent years there has been a proliferation of free-to-use and easily accessible mapping software such as the proprietary web applications Google Maps and Bing Maps, as well as the free and open-source alternative OpenStreetMap. These services give the public access to huge amounts of geographic data, perceived by many users to be as trustworthy and usable as professional information. For example, during the COVID-19 pandemic, web maps hosted on dashboards were used to rapidly disseminate case data to the general public.", "title": "Data output and cartography" }, { "paragraph_id": 78, "text": "Some of them, like Google Maps and OpenLayers, expose an application programming interface (API) that enable users to create custom applications. These toolkits commonly offer street maps, aerial/satellite imagery, geocoding, searches, and routing functionality. Web mapping has also uncovered the potential of crowdsourcing geodata in projects like OpenStreetMap, which is a collaborative project to create a free editable map of the world. These mashup projects have been proven to provide a high level of value and benefit to end users outside that possible through traditional geographic information.", "title": "Data output and cartography" }, { "paragraph_id": 79, "text": "Web mapping is not without its drawbacks. Web mapping allows for the creation and distribution of maps by people without proper cartographic training. This has led to maps that ignore cartographic conventions and are potentially misleading, with one study finding that more than half of United States state government COVID-19 dashboards did not follow these conventions.", "title": "Data output and cartography" }, { "paragraph_id": 80, "text": "Since its origin in the 1960s, GIS has been used in an ever-increasing range of applications, corroborating the widespread importance of location and aided by the continuing reduction in the barriers to adopting geospatial technology. The perhaps hundreds of different uses of GIS can be classified in several ways:", "title": "Applications" }, { "paragraph_id": 81, "text": "The implementation of a GIS is often driven by jurisdictional (such as a city), purpose, or application requirements. Generally, a GIS implementation may be custom-designed for an organization. Hence, a GIS deployment developed for an application, jurisdiction, enterprise, or purpose may not be necessarily interoperable or compatible with a GIS that has been developed for some other application, jurisdiction, enterprise, or purpose.", "title": "Applications" }, { "paragraph_id": 82, "text": "GIS is also diverging into location-based services, which allows GPS-enabled mobile devices to display their location in relation to fixed objects (nearest restaurant, gas station, fire hydrant) or mobile objects (friends, children, police car), or to relay their position back to a central server for display or other processing.", "title": "Applications" }, { "paragraph_id": 83, "text": "The Open Geospatial Consortium (OGC) is an international industry consortium of 384 companies, government agencies, universities, and individuals participating in a consensus process to develop publicly available geoprocessing specifications. Open interfaces and protocols defined by OpenGIS Specifications support interoperable solutions that \"geo-enable\" the Web, wireless and location-based services, and mainstream IT, and empower technology developers to make complex spatial information and services accessible and useful with all kinds of applications. Open Geospatial Consortium protocols include Web Map Service, and Web Feature Service.", "title": "Applications" }, { "paragraph_id": 84, "text": "GIS products are broken down by the OGC into two categories, based on how completely and accurately the software follows the OGC specifications.", "title": "Applications" }, { "paragraph_id": 85, "text": "Compliant products are software products that comply to OGC's OpenGIS Specifications. When a product has been tested and certified as compliant through the OGC Testing Program, the product is automatically registered as \"compliant\" on this site.", "title": "Applications" }, { "paragraph_id": 86, "text": "Implementing products are software products that implement OpenGIS Specifications but have not yet passed a compliance test. Compliance tests are not available for all specifications. Developers can register their products as implementing draft or approved specifications, though OGC reserves the right to review and verify each entry.", "title": "Applications" }, { "paragraph_id": 87, "text": "The condition of the Earth's surface, atmosphere, and subsurface can be examined by feeding satellite data into a GIS. GIS technology gives researchers the ability to examine the variations in Earth processes over days, months, and years through the use of cartographic visualizations. As an example, the changes in vegetation vigor through a growing season can be animated to determine when drought was most extensive in a particular region. The resulting graphic represents a rough measure of plant health. Working with two variables over time would then allow researchers to detect regional differences in the lag between a decline in rainfall and its effect on vegetation.", "title": "Applications" }, { "paragraph_id": 88, "text": "GIS technology and the availability of digital data on regional and global scales enable such analyses. The satellite sensor output used to generate a vegetation graphic is produced for example by the advanced very-high-resolution radiometer (AVHRR). This sensor system detects the amounts of energy reflected from the Earth's surface across various bands of the spectrum for surface areas of about 1 square kilometer. The satellite sensor produces images of a particular location on the Earth twice a day. AVHRR and more recently the moderate-resolution imaging spectroradiometer (MODIS) are only two of many sensor systems used for Earth surface analysis.", "title": "Applications" }, { "paragraph_id": 89, "text": "In addition to the integration of time in environmental studies, GIS is also being explored for its ability to track and model the progress of humans throughout their daily routines. A concrete example of progress in this area is the recent release of time-specific population data by the U.S. Census. In this data set, the populations of cities are shown for daytime and evening hours highlighting the pattern of concentration and dispersion generated by North American commuting patterns. The manipulation and generation of data required to produce this data would not have been possible without GIS.", "title": "Applications" }, { "paragraph_id": 90, "text": "Using models to project the data held by a GIS forward in time have enabled planners to test policy decisions using spatial decision support systems.", "title": "Applications" }, { "paragraph_id": 91, "text": "Tools and technologies emerging from the World Wide Web Consortium's Semantic Web are proving useful for data integration problems in information systems. Correspondingly, such technologies have been proposed as a means to facilitate interoperability and data reuse among GIS applications and also to enable new analysis mechanisms.", "title": "Semantics" }, { "paragraph_id": 92, "text": "Ontologies are a key component of this semantic approach as they allow a formal, machine-readable specification of the concepts and relationships in a given domain. This in turn allows a GIS to focus on the intended meaning of data rather than its syntax or structure. For example, reasoning that a land cover type classified as deciduous needleleaf trees in one dataset is a specialization or subset of land cover type forest in another more roughly classified dataset can help a GIS automatically merge the two datasets under the more general land cover classification. Tentative ontologies have been developed in areas related to GIS applications, for example the hydrology ontology developed by the Ordnance Survey in the United Kingdom and the SWEET ontologies developed by NASA's Jet Propulsion Laboratory. Also, simpler ontologies and semantic metadata standards are being proposed by the W3C Geo Incubator Group to represent geospatial data on the web. GeoSPARQL is a standard developed by the Ordnance Survey, United States Geological Survey, Natural Resources Canada, Australia's Commonwealth Scientific and Industrial Research Organisation and others to support ontology creation and reasoning using well-understood OGC literals (GML, WKT), topological relationships (Simple Features, RCC8, DE-9IM), RDF and the SPARQL database query protocols.", "title": "Semantics" }, { "paragraph_id": 93, "text": "Recent research results in this area can be seen in the International Conference on Geospatial Semantics and the Terra Cognita – Directions to the Geospatial Semantic Web workshop at the International Semantic Web Conference.", "title": "Semantics" }, { "paragraph_id": 94, "text": "With the popularization of GIS in decision making, scholars have begun to scrutinize the social and political implications of GIS. GIS can also be misused to distort reality for individual and political gain. It has been argued that the production, distribution, utilization, and representation of geographic information are largely related with the social context and has the potential to increase citizen trust in government. Other related topics include discussion on copyright, privacy, and censorship. A more optimistic social approach to GIS adoption is to use it as a tool for public participation.", "title": "Societal implications" }, { "paragraph_id": 95, "text": "At the end of the 20th century, GIS began to be recognized as tools that could be used in the classroom. The benefits of GIS in education seem focused on developing spatial cognition, but there is not enough bibliography or statistical data to show the concrete scope of the use of GIS in education around the world, although the expansion has been faster in those countries where the curriculum mentions them.", "title": "Societal implications" }, { "paragraph_id": 96, "text": "GIS seem to provide many advantages in teaching geography because they allow for analyses based on real geographic data and also help raise many research questions from teachers and students in classrooms. They also contribute to improvement in learning by developing spatial and geographical thinking and, in many cases, student motivation.", "title": "Societal implications" }, { "paragraph_id": 97, "text": "GIS is proven as an organization-wide, enterprise and enduring technology that continues to change how local government operates. Government agencies have adopted GIS technology as a method to better manage the following areas of government organization:", "title": "Societal implications" }, { "paragraph_id": 98, "text": "The Open Data initiative is pushing local government to take advantage of technology such as GIS technology, as it encompasses the requirements to fit the Open Data/Open Government model of transparency. With Open Data, local government organizations can implement Citizen Engagement applications and online portals, allowing citizens to see land information, report potholes and signage issues, view and sort parks by assets, view real-time crime rates and utility repairs, and much more. The push for open data within government organizations is driving the growth in local government GIS technology spending, and database management.", "title": "Societal implications" } ]
A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. Much of this often happens within a spatial database, however, this is not essential to meet the definition of a GIS. In a broader sense, one may consider such a system also to include human users and support staff, procedures and workflows, the body of knowledge of relevant concepts and methods, and institutional organizations. The uncounted plural, geographic information systems, also abbreviated GIS, is the most common term for the industry and profession concerned with these systems. It is roughly synonymous with geoinformatics. The academic discipline that studies these systems and their underlying geographic principles, may also be abbreviated as GIS, but the unambiguous GIScience is more common. GIScience is often considered a subdiscipline of geography within the branch of technical geography. Geographic information systems are utilized in multiple technologies, processes, techniques and methods. They are attached to various operations and numerous applications, that relate to: engineering, planning, management, transport/logistics, insurance, telecommunications, and business. For this reason, GIS and location intelligence applications are at the foundation of location-enabled services, which rely on geographic analysis and visualization. GIS provides the capability to relate previously unrelated information, through the use of location as the "key index variable". Locations and extents that are found in the Earth's spacetime are able to be recorded through the date and time of occurrence, along with x, y, and z coordinates; representing, longitude (x), latitude (y), and elevation (z). All Earth-based, spatial–temporal, location and extent references should be relatable to one another, and ultimately, to a "real" physical location or extent. This key characteristic of GIS has begun to open new avenues of scientific inquiry and studies.
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https://en.wikipedia.org/wiki/Geographic_information_system
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Graph theory
In mathematics, graph theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of vertices (also called nodes or points) which are connected by edges (also called links or lines). A distinction is made between undirected graphs, where edges link two vertices symmetrically, and directed graphs, where edges link two vertices asymmetrically. Graphs are one of the principal objects of study in discrete mathematics. Definitions in graph theory vary. The following are some of the more basic ways of defining graphs and related mathematical structures. In one restricted but very common sense of the term, a graph is an ordered pair G = ( V , E ) {\displaystyle G=(V,E)} comprising: To avoid ambiguity, this type of object may be called precisely an undirected simple graph. In the edge { x , y } {\displaystyle \{x,y\}} , the vertices x {\displaystyle x} and y {\displaystyle y} are called the endpoints of the edge. The edge is said to join x {\displaystyle x} and y {\displaystyle y} and to be incident on x {\displaystyle x} and on y {\displaystyle y} . A vertex may exist in a graph and not belong to an edge. Under this definition, multiple edges, in which two or more edges connect the same vertices, are not allowed. In one more general sense of the term allowing multiple edges, a graph is an ordered triple G = ( V , E , ϕ ) {\displaystyle G=(V,E,\phi )} comprising: To avoid ambiguity, this type of object may be called precisely an undirected multigraph. A loop is an edge that joins a vertex to itself. Graphs as defined in the two definitions above cannot have loops, because a loop joining a vertex x {\displaystyle x} to itself is the edge (for an undirected simple graph) or is incident on (for an undirected multigraph) { x , x } = { x } {\displaystyle \{x,x\}=\{x\}} which is not in { { x , y } ∣ x , y ∈ V and x ≠ y } {\displaystyle \{\{x,y\}\mid x,y\in V\;{\textrm {and}}\;x\neq y\}} . To allow loops, the definitions must be expanded. For undirected simple graphs, the definition of E {\displaystyle E} should be modified to E ⊆ { { x , y } ∣ x , y ∈ V } {\displaystyle E\subseteq \{\{x,y\}\mid x,y\in V\}} . For undirected multigraphs, the definition of ϕ {\displaystyle \phi } should be modified to ϕ : E → { { x , y } ∣ x , y ∈ V } {\displaystyle \phi :E\to \{\{x,y\}\mid x,y\in V\}} . To avoid ambiguity, these types of objects may be called undirected simple graph permitting loops and undirected multigraph permitting loops (sometimes also undirected pseudograph), respectively. V {\displaystyle V} and E {\displaystyle E} are usually taken to be finite, and many of the well-known results are not true (or are rather different) for infinite graphs because many of the arguments fail in the infinite case. Moreover, V {\displaystyle V} is often assumed to be non-empty, but E {\displaystyle E} is allowed to be the empty set. The order of a graph is | V | {\displaystyle |V|} , its number of vertices. The size of a graph is | E | {\displaystyle |E|} , its number of edges. The degree or valency of a vertex is the number of edges that are incident to it, where a loop is counted twice. The degree of a graph is the maximum of the degrees of its vertices. In an undirected simple graph of order n, the maximum degree of each vertex is n − 1 and the maximum size of the graph is n(n − 1)/2. The edges of an undirected simple graph permitting loops G {\displaystyle G} induce a symmetric homogeneous relation ∼ {\displaystyle \sim } on the vertices of G {\displaystyle G} that is called the adjacency relation of G {\displaystyle G} . Specifically, for each edge ( x , y ) {\displaystyle (x,y)} , its endpoints x {\displaystyle x} and y {\displaystyle y} are said to be adjacent to one another, which is denoted x ∼ y {\displaystyle x\sim y} . A directed graph or digraph is a graph in which edges have orientations. In one restricted but very common sense of the term, a directed graph is an ordered pair G = ( V , E ) {\displaystyle G=(V,E)} comprising: To avoid ambiguity, this type of object may be called precisely a directed simple graph. In set theory and graph theory, V n {\displaystyle V^{n}} denotes the set of n-tuples of elements of V , {\displaystyle V,} that is, ordered sequences of n {\displaystyle n} elements that are not necessarily distinct. In the edge ( x , y ) {\displaystyle (x,y)} directed from x {\displaystyle x} to y {\displaystyle y} , the vertices x {\displaystyle x} and y {\displaystyle y} are called the endpoints of the edge, x {\displaystyle x} the tail of the edge and y {\displaystyle y} the head of the edge. The edge is said to join x {\displaystyle x} and y {\displaystyle y} and to be incident on x {\displaystyle x} and on y {\displaystyle y} . A vertex may exist in a graph and not belong to an edge. The edge ( y , x ) {\displaystyle (y,x)} is called the inverted edge of ( x , y ) {\displaystyle (x,y)} . Multiple edges, not allowed under the definition above, are two or more edges with both the same tail and the same head. In one more general sense of the term allowing multiple edges, a directed graph is an ordered triple G = ( V , E , ϕ ) {\displaystyle G=(V,E,\phi )} comprising: To avoid ambiguity, this type of object may be called precisely a directed multigraph. A loop is an edge that joins a vertex to itself. Directed graphs as defined in the two definitions above cannot have loops, because a loop joining a vertex x {\displaystyle x} to itself is the edge (for a directed simple graph) or is incident on (for a directed multigraph) ( x , x ) {\displaystyle (x,x)} which is not in { ( x , y ) ∣ ( x , y ) ∈ V 2 and x ≠ y } {\displaystyle \left\{(x,y)\mid (x,y)\in V^{2}\;{\textrm {and}}\;x\neq y\right\}} . So to allow loops the definitions must be expanded. For directed simple graphs, the definition of E {\displaystyle E} should be modified to E ⊆ { ( x , y ) ∣ ( x , y ) ∈ V 2 } {\displaystyle E\subseteq \left\{(x,y)\mid (x,y)\in V^{2}\right\}} . For directed multigraphs, the definition of ϕ {\displaystyle \phi } should be modified to ϕ : E → { ( x , y ) ∣ ( x , y ) ∈ V 2 } {\displaystyle \phi :E\to \left\{(x,y)\mid (x,y)\in V^{2}\right\}} . To avoid ambiguity, these types of objects may be called precisely a directed simple graph permitting loops and a directed multigraph permitting loops (or a quiver) respectively. The edges of a directed simple graph permitting loops G {\displaystyle G} is a homogeneous relation ~ on the vertices of G {\displaystyle G} that is called the adjacency relation of G {\displaystyle G} . Specifically, for each edge ( x , y ) {\displaystyle (x,y)} , its endpoints x {\displaystyle x} and y {\displaystyle y} are said to be adjacent to one another, which is denoted x {\displaystyle x} ~ y {\displaystyle y} . Graphs can be used to model many types of relations and processes in physical, biological, social and information systems. Many practical problems can be represented by graphs. Emphasizing their application to real-world systems, the term network is sometimes defined to mean a graph in which attributes (e.g. names) are associated with the vertices and edges, and the subject that expresses and understands real-world systems as a network is called network science. Within computer science, causal and non-causal linked structures are graphs that are used to represent networks of communication, data organization, computational devices, the flow of computation, etc. For instance, the link structure of a website can be represented by a directed graph, in which the vertices represent web pages and directed edges represent links from one page to another. A similar approach can be taken to problems in social media, travel, biology, computer chip design, mapping the progression of neuro-degenerative diseases, and many other fields. The development of algorithms to handle graphs is therefore of major interest in computer science. The transformation of graphs is often formalized and represented by graph rewrite systems. Complementary to graph transformation systems focusing on rule-based in-memory manipulation of graphs are graph databases geared towards transaction-safe, persistent storing and querying of graph-structured data. Graph-theoretic methods, in various forms, have proven particularly useful in linguistics, since natural language often lends itself well to discrete structure. Traditionally, syntax and compositional semantics follow tree-based structures, whose expressive power lies in the principle of compositionality, modeled in a hierarchical graph. More contemporary approaches such as head-driven phrase structure grammar model the syntax of natural language using typed feature structures, which are directed acyclic graphs. Within lexical semantics, especially as applied to computers, modeling word meaning is easier when a given word is understood in terms of related words; semantic networks are therefore important in computational linguistics. Still, other methods in phonology (e.g. optimality theory, which uses lattice graphs) and morphology (e.g. finite-state morphology, using finite-state transducers) are common in the analysis of language as a graph. Indeed, the usefulness of this area of mathematics to linguistics has borne organizations such as TextGraphs, as well as various 'Net' projects, such as WordNet, VerbNet, and others. Graph theory is also used to study molecules in chemistry and physics. In condensed matter physics, the three-dimensional structure of complicated simulated atomic structures can be studied quantitatively by gathering statistics on graph-theoretic properties related to the topology of the atoms. Also, "the Feynman graphs and rules of calculation summarize quantum field theory in a form in close contact with the experimental numbers one wants to understand." In chemistry a graph makes a natural model for a molecule, where vertices represent atoms and edges bonds. This approach is especially used in computer processing of molecular structures, ranging from chemical editors to database searching. In statistical physics, graphs can represent local connections between interacting parts of a system, as well as the dynamics of a physical process on such systems. Similarly, in computational neuroscience graphs can be used to represent functional connections between brain areas that interact to give rise to various cognitive processes, where the vertices represent different areas of the brain and the edges represent the connections between those areas. Graph theory plays an important role in electrical modeling of electrical networks, here, weights are associated with resistance of the wire segments to obtain electrical properties of network structures. Graphs are also used to represent the micro-scale channels of porous media, in which the vertices represent the pores and the edges represent the smaller channels connecting the pores. Chemical graph theory uses the molecular graph as a means to model molecules. Graphs and networks are excellent models to study and understand phase transitions and critical phenomena. Removal of nodes or edges leads to a critical transition where the network breaks into small clusters which is studied as a phase transition. This breakdown is studied via percolation theory. Graph theory is also widely used in sociology as a way, for example, to measure actors' prestige or to explore rumor spreading, notably through the use of social network analysis software. Under the umbrella of social networks are many different types of graphs. Acquaintanceship and friendship graphs describe whether people know each other. Influence graphs model whether certain people can influence the behavior of others. Finally, collaboration graphs model whether two people work together in a particular way, such as acting in a movie together. Likewise, graph theory is useful in biology and conservation efforts where a vertex can represent regions where certain species exist (or inhabit) and the edges represent migration paths or movement between the regions. This information is important when looking at breeding patterns or tracking the spread of disease, parasites or how changes to the movement can affect other species. Graphs are also commonly used in molecular biology and genomics to model and analyse datasets with complex relationships. For example, graph-based methods are often used to 'cluster' cells together into cell-types in single-cell transcriptome analysis. Another use is to model genes or proteins in a pathway and study the relationships between them, such as metabolic pathways and gene regulatory networks. Evolutionary trees, ecological networks, and hierarchical clustering of gene expression patterns are also represented as graph structures. Graph theory is also used in connectomics; nervous systems can be seen as a graph, where the nodes are neurons and the edges are the connections between them. In mathematics, graphs are useful in geometry and certain parts of topology such as knot theory. Algebraic graph theory has close links with group theory. Algebraic graph theory has been applied to many areas including dynamic systems and complexity. A graph structure can be extended by assigning a weight to each edge of the graph. Graphs with weights, or weighted graphs, are used to represent structures in which pairwise connections have some numerical values. For example, if a graph represents a road network, the weights could represent the length of each road. There may be several weights associated with each edge, including distance (as in the previous example), travel time, or monetary cost. Such weighted graphs are commonly used to program GPS's, and travel-planning search engines that compare flight times and costs. The paper written by Leonhard Euler on the Seven Bridges of Königsberg and published in 1736 is regarded as the first paper in the history of graph theory. This paper, as well as the one written by Vandermonde on the knight problem, carried on with the analysis situs initiated by Leibniz. Euler's formula relating the number of edges, vertices, and faces of a convex polyhedron was studied and generalized by Cauchy and L'Huilier, and represents the beginning of the branch of mathematics known as topology. More than one century after Euler's paper on the bridges of Königsberg and while Listing was introducing the concept of topology, Cayley was led by an interest in particular analytical forms arising from differential calculus to study a particular class of graphs, the trees. This study had many implications for theoretical chemistry. The techniques he used mainly concern the enumeration of graphs with particular properties. Enumerative graph theory then arose from the results of Cayley and the fundamental results published by Pólya between 1935 and 1937. These were generalized by De Bruijn in 1959. Cayley linked his results on trees with contemporary studies of chemical composition. The fusion of ideas from mathematics with those from chemistry began what has become part of the standard terminology of graph theory. In particular, the term "graph" was introduced by Sylvester in a paper published in 1878 in Nature, where he draws an analogy between "quantic invariants" and "co-variants" of algebra and molecular diagrams: The first textbook on graph theory was written by Dénes Kőnig, and published in 1936. Another book by Frank Harary, published in 1969, was "considered the world over to be the definitive textbook on the subject", and enabled mathematicians, chemists, electrical engineers and social scientists to talk to each other. Harary donated all of the royalties to fund the Pólya Prize. One of the most famous and stimulating problems in graph theory is the four color problem: "Is it true that any map drawn in the plane may have its regions colored with four colors, in such a way that any two regions having a common border have different colors?" This problem was first posed by Francis Guthrie in 1852 and its first written record is in a letter of De Morgan addressed to Hamilton the same year. Many incorrect proofs have been proposed, including those by Cayley, Kempe, and others. The study and the generalization of this problem by Tait, Heawood, Ramsey and Hadwiger led to the study of the colorings of the graphs embedded on surfaces with arbitrary genus. Tait's reformulation generated a new class of problems, the factorization problems, particularly studied by Petersen and Kőnig. The works of Ramsey on colorations and more specially the results obtained by Turán in 1941 was at the origin of another branch of graph theory, extremal graph theory. The four color problem remained unsolved for more than a century. In 1969 Heinrich Heesch published a method for solving the problem using computers. A computer-aided proof produced in 1976 by Kenneth Appel and Wolfgang Haken makes fundamental use of the notion of "discharging" developed by Heesch. The proof involved checking the properties of 1,936 configurations by computer, and was not fully accepted at the time due to its complexity. A simpler proof considering only 633 configurations was given twenty years later by Robertson, Seymour, Sanders and Thomas. The autonomous development of topology from 1860 and 1930 fertilized graph theory back through the works of Jordan, Kuratowski and Whitney. Another important factor of common development of graph theory and topology came from the use of the techniques of modern algebra. The first example of such a use comes from the work of the physicist Gustav Kirchhoff, who published in 1845 his Kirchhoff's circuit laws for calculating the voltage and current in electric circuits. The introduction of probabilistic methods in graph theory, especially in the study of Erdős and Rényi of the asymptotic probability of graph connectivity, gave rise to yet another branch, known as random graph theory, which has been a fruitful source of graph-theoretic results. A graph is an abstraction of relationships that emerge in nature; hence, it cannot be coupled to a certain representation. The way it is represented depends on the degree of convenience such representation provides for a certain application. The most common representations are the visual, in which, usually, vertices are drawn and connected by edges, and the tabular, in which rows of a table provide information about the relationships between the vertices within the graph. Graphs are usually represented visually by drawing a point or circle for every vertex, and drawing a line between two vertices if they are connected by an edge. If the graph is directed, the direction is indicated by drawing an arrow. If the graph is weighted, the weight is added on the arrow. A graph drawing should not be confused with the graph itself (the abstract, non-visual structure) as there are several ways to structure the graph drawing. All that matters is which vertices are connected to which others by how many edges and not the exact layout. In practice, it is often difficult to decide if two drawings represent the same graph. Depending on the problem domain some layouts may be better suited and easier to understand than others. The pioneering work of W. T. Tutte was very influential on the subject of graph drawing. Among other achievements, he introduced the use of linear algebraic methods to obtain graph drawings. Graph drawing also can be said to encompass problems that deal with the crossing number and its various generalizations. The crossing number of a graph is the minimum number of intersections between edges that a drawing of the graph in the plane must contain. For a planar graph, the crossing number is zero by definition. Drawings on surfaces other than the plane are also studied. There are other techniques to visualize a graph away from vertices and edges, including circle packings, intersection graph, and other visualizations of the adjacency matrix. The tabular representation lends itself well to computational applications. There are different ways to store graphs in a computer system. The data structure used depends on both the graph structure and the algorithm used for manipulating the graph. Theoretically one can distinguish between list and matrix structures but in concrete applications the best structure is often a combination of both. List structures are often preferred for sparse graphs as they have smaller memory requirements. Matrix structures on the other hand provide faster access for some applications but can consume huge amounts of memory. Implementations of sparse matrix structures that are efficient on modern parallel computer architectures are an object of current investigation. List structures include the edge list, an array of pairs of vertices, and the adjacency list, which separately lists the neighbors of each vertex: Much like the edge list, each vertex has a list of which vertices it is adjacent to. Matrix structures include the incidence matrix, a matrix of 0's and 1's whose rows represent vertices and whose columns represent edges, and the adjacency matrix, in which both the rows and columns are indexed by vertices. In both cases a 1 indicates two adjacent objects and a 0 indicates two non-adjacent objects. The degree matrix indicates the degree of vertices. The Laplacian matrix is a modified form of the adjacency matrix that incorporates information about the degrees of the vertices, and is useful in some calculations such as Kirchhoff's theorem on the number of spanning trees of a graph. The distance matrix, like the adjacency matrix, has both its rows and columns indexed by vertices, but rather than containing a 0 or a 1 in each cell it contains the length of a shortest path between two vertices. There is a large literature on graphical enumeration: the problem of counting graphs meeting specified conditions. Some of this work is found in Harary and Palmer (1973). A common problem, called the subgraph isomorphism problem, is finding a fixed graph as a subgraph in a given graph. One reason to be interested in such a question is that many graph properties are hereditary for subgraphs, which means that a graph has the property if and only if all subgraphs have it too. Unfortunately, finding maximal subgraphs of a certain kind is often an NP-complete problem. For example: One special case of subgraph isomorphism is the graph isomorphism problem. It asks whether two graphs are isomorphic. It is not known whether this problem is NP-complete, nor whether it can be solved in polynomial time. A similar problem is finding induced subgraphs in a given graph. Again, some important graph properties are hereditary with respect to induced subgraphs, which means that a graph has a property if and only if all induced subgraphs also have it. Finding maximal induced subgraphs of a certain kind is also often NP-complete. For example: Still another such problem, the minor containment problem, is to find a fixed graph as a minor of a given graph. A minor or subcontraction of a graph is any graph obtained by taking a subgraph and contracting some (or no) edges. Many graph properties are hereditary for minors, which means that a graph has a property if and only if all minors have it too. For example, Wagner's Theorem states: A similar problem, the subdivision containment problem, is to find a fixed graph as a subdivision of a given graph. A subdivision or homeomorphism of a graph is any graph obtained by subdividing some (or no) edges. Subdivision containment is related to graph properties such as planarity. For example, Kuratowski's Theorem states: Another problem in subdivision containment is the Kelmans–Seymour conjecture: Another class of problems has to do with the extent to which various species and generalizations of graphs are determined by their point-deleted subgraphs. For example: Many problems and theorems in graph theory have to do with various ways of coloring graphs. Typically, one is interested in coloring a graph so that no two adjacent vertices have the same color, or with other similar restrictions. One may also consider coloring edges (possibly so that no two coincident edges are the same color), or other variations. Among the famous results and conjectures concerning graph coloring are the following: Constraint modeling theories concern families of directed graphs related by a partial order. In these applications, graphs are ordered by specificity, meaning that more constrained graphs—which are more specific and thus contain a greater amount of information—are subsumed by those that are more general. Operations between graphs include evaluating the direction of a subsumption relationship between two graphs, if any, and computing graph unification. The unification of two argument graphs is defined as the most general graph (or the computation thereof) that is consistent with (i.e. contains all of the information in) the inputs, if such a graph exists; efficient unification algorithms are known. For constraint frameworks which are strictly compositional, graph unification is the sufficient satisfiability and combination function. Well-known applications include automatic theorem proving and modeling the elaboration of linguistic structure. There are numerous problems arising especially from applications that have to do with various notions of flows in networks, for example: Covering problems in graphs may refer to various set cover problems on subsets of vertices/subgraphs. Decomposition, defined as partitioning the edge set of a graph (with as many vertices as necessary accompanying the edges of each part of the partition), has a wide variety of questions. Often, the problem is to decompose a graph into subgraphs isomorphic to a fixed graph; for instance, decomposing a complete graph into Hamiltonian cycles. Other problems specify a family of graphs into which a given graph should be decomposed, for instance, a family of cycles, or decomposing a complete graph Kn into n − 1 specified trees having, respectively, 1, 2, 3, ..., n − 1 edges. Some specific decomposition problems that have been studied include: Many problems involve characterizing the members of various classes of graphs. Some examples of such questions are below:
[ { "paragraph_id": 0, "text": "In mathematics, graph theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of vertices (also called nodes or points) which are connected by edges (also called links or lines). A distinction is made between undirected graphs, where edges link two vertices symmetrically, and directed graphs, where edges link two vertices asymmetrically. Graphs are one of the principal objects of study in discrete mathematics.", "title": "" }, { "paragraph_id": 1, "text": "Definitions in graph theory vary. The following are some of the more basic ways of defining graphs and related mathematical structures.", "title": "Definitions" }, { "paragraph_id": 2, "text": "In one restricted but very common sense of the term, a graph is an ordered pair G = ( V , E ) {\\displaystyle G=(V,E)} comprising:", "title": "Definitions" }, { "paragraph_id": 3, "text": "To avoid ambiguity, this type of object may be called precisely an undirected simple graph.", "title": "Definitions" }, { "paragraph_id": 4, "text": "In the edge { x , y } {\\displaystyle \\{x,y\\}} , the vertices x {\\displaystyle x} and y {\\displaystyle y} are called the endpoints of the edge. The edge is said to join x {\\displaystyle x} and y {\\displaystyle y} and to be incident on x {\\displaystyle x} and on y {\\displaystyle y} . A vertex may exist in a graph and not belong to an edge. Under this definition, multiple edges, in which two or more edges connect the same vertices, are not allowed.", "title": "Definitions" }, { "paragraph_id": 5, "text": "In one more general sense of the term allowing multiple edges, a graph is an ordered triple G = ( V , E , ϕ ) {\\displaystyle G=(V,E,\\phi )} comprising:", "title": "Definitions" }, { "paragraph_id": 6, "text": "To avoid ambiguity, this type of object may be called precisely an undirected multigraph.", "title": "Definitions" }, { "paragraph_id": 7, "text": "A loop is an edge that joins a vertex to itself. Graphs as defined in the two definitions above cannot have loops, because a loop joining a vertex x {\\displaystyle x} to itself is the edge (for an undirected simple graph) or is incident on (for an undirected multigraph) { x , x } = { x } {\\displaystyle \\{x,x\\}=\\{x\\}} which is not in { { x , y } ∣ x , y ∈ V and x ≠ y } {\\displaystyle \\{\\{x,y\\}\\mid x,y\\in V\\;{\\textrm {and}}\\;x\\neq y\\}} . To allow loops, the definitions must be expanded. For undirected simple graphs, the definition of E {\\displaystyle E} should be modified to E ⊆ { { x , y } ∣ x , y ∈ V } {\\displaystyle E\\subseteq \\{\\{x,y\\}\\mid x,y\\in V\\}} . For undirected multigraphs, the definition of ϕ {\\displaystyle \\phi } should be modified to ϕ : E → { { x , y } ∣ x , y ∈ V } {\\displaystyle \\phi :E\\to \\{\\{x,y\\}\\mid x,y\\in V\\}} . To avoid ambiguity, these types of objects may be called undirected simple graph permitting loops and undirected multigraph permitting loops (sometimes also undirected pseudograph), respectively.", "title": "Definitions" }, { "paragraph_id": 8, "text": "V {\\displaystyle V} and E {\\displaystyle E} are usually taken to be finite, and many of the well-known results are not true (or are rather different) for infinite graphs because many of the arguments fail in the infinite case. Moreover, V {\\displaystyle V} is often assumed to be non-empty, but E {\\displaystyle E} is allowed to be the empty set. The order of a graph is | V | {\\displaystyle |V|} , its number of vertices. The size of a graph is | E | {\\displaystyle |E|} , its number of edges. The degree or valency of a vertex is the number of edges that are incident to it, where a loop is counted twice. The degree of a graph is the maximum of the degrees of its vertices.", "title": "Definitions" }, { "paragraph_id": 9, "text": "In an undirected simple graph of order n, the maximum degree of each vertex is n − 1 and the maximum size of the graph is n(n − 1)/2.", "title": "Definitions" }, { "paragraph_id": 10, "text": "The edges of an undirected simple graph permitting loops G {\\displaystyle G} induce a symmetric homogeneous relation ∼ {\\displaystyle \\sim } on the vertices of G {\\displaystyle G} that is called the adjacency relation of G {\\displaystyle G} . Specifically, for each edge ( x , y ) {\\displaystyle (x,y)} , its endpoints x {\\displaystyle x} and y {\\displaystyle y} are said to be adjacent to one another, which is denoted x ∼ y {\\displaystyle x\\sim y} .", "title": "Definitions" }, { "paragraph_id": 11, "text": "A directed graph or digraph is a graph in which edges have orientations.", "title": "Definitions" }, { "paragraph_id": 12, "text": "In one restricted but very common sense of the term, a directed graph is an ordered pair G = ( V , E ) {\\displaystyle G=(V,E)} comprising:", "title": "Definitions" }, { "paragraph_id": 13, "text": "To avoid ambiguity, this type of object may be called precisely a directed simple graph. In set theory and graph theory, V n {\\displaystyle V^{n}} denotes the set of n-tuples of elements of V , {\\displaystyle V,} that is, ordered sequences of n {\\displaystyle n} elements that are not necessarily distinct.", "title": "Definitions" }, { "paragraph_id": 14, "text": "In the edge ( x , y ) {\\displaystyle (x,y)} directed from x {\\displaystyle x} to y {\\displaystyle y} , the vertices x {\\displaystyle x} and y {\\displaystyle y} are called the endpoints of the edge, x {\\displaystyle x} the tail of the edge and y {\\displaystyle y} the head of the edge. The edge is said to join x {\\displaystyle x} and y {\\displaystyle y} and to be incident on x {\\displaystyle x} and on y {\\displaystyle y} . A vertex may exist in a graph and not belong to an edge. The edge ( y , x ) {\\displaystyle (y,x)} is called the inverted edge of ( x , y ) {\\displaystyle (x,y)} . Multiple edges, not allowed under the definition above, are two or more edges with both the same tail and the same head.", "title": "Definitions" }, { "paragraph_id": 15, "text": "In one more general sense of the term allowing multiple edges, a directed graph is an ordered triple G = ( V , E , ϕ ) {\\displaystyle G=(V,E,\\phi )} comprising:", "title": "Definitions" }, { "paragraph_id": 16, "text": "To avoid ambiguity, this type of object may be called precisely a directed multigraph.", "title": "Definitions" }, { "paragraph_id": 17, "text": "A loop is an edge that joins a vertex to itself. Directed graphs as defined in the two definitions above cannot have loops, because a loop joining a vertex x {\\displaystyle x} to itself is the edge (for a directed simple graph) or is incident on (for a directed multigraph) ( x , x ) {\\displaystyle (x,x)} which is not in { ( x , y ) ∣ ( x , y ) ∈ V 2 and x ≠ y } {\\displaystyle \\left\\{(x,y)\\mid (x,y)\\in V^{2}\\;{\\textrm {and}}\\;x\\neq y\\right\\}} . So to allow loops the definitions must be expanded. For directed simple graphs, the definition of E {\\displaystyle E} should be modified to E ⊆ { ( x , y ) ∣ ( x , y ) ∈ V 2 } {\\displaystyle E\\subseteq \\left\\{(x,y)\\mid (x,y)\\in V^{2}\\right\\}} . For directed multigraphs, the definition of ϕ {\\displaystyle \\phi } should be modified to ϕ : E → { ( x , y ) ∣ ( x , y ) ∈ V 2 } {\\displaystyle \\phi :E\\to \\left\\{(x,y)\\mid (x,y)\\in V^{2}\\right\\}} . To avoid ambiguity, these types of objects may be called precisely a directed simple graph permitting loops and a directed multigraph permitting loops (or a quiver) respectively.", "title": "Definitions" }, { "paragraph_id": 18, "text": "The edges of a directed simple graph permitting loops G {\\displaystyle G} is a homogeneous relation ~ on the vertices of G {\\displaystyle G} that is called the adjacency relation of G {\\displaystyle G} . Specifically, for each edge ( x , y ) {\\displaystyle (x,y)} , its endpoints x {\\displaystyle x} and y {\\displaystyle y} are said to be adjacent to one another, which is denoted x {\\displaystyle x} ~ y {\\displaystyle y} .", "title": "Definitions" }, { "paragraph_id": 19, "text": "Graphs can be used to model many types of relations and processes in physical, biological, social and information systems. Many practical problems can be represented by graphs. Emphasizing their application to real-world systems, the term network is sometimes defined to mean a graph in which attributes (e.g. names) are associated with the vertices and edges, and the subject that expresses and understands real-world systems as a network is called network science.", "title": "Applications" }, { "paragraph_id": 20, "text": "Within computer science, causal and non-causal linked structures are graphs that are used to represent networks of communication, data organization, computational devices, the flow of computation, etc. For instance, the link structure of a website can be represented by a directed graph, in which the vertices represent web pages and directed edges represent links from one page to another. A similar approach can be taken to problems in social media, travel, biology, computer chip design, mapping the progression of neuro-degenerative diseases, and many other fields. The development of algorithms to handle graphs is therefore of major interest in computer science. The transformation of graphs is often formalized and represented by graph rewrite systems. Complementary to graph transformation systems focusing on rule-based in-memory manipulation of graphs are graph databases geared towards transaction-safe, persistent storing and querying of graph-structured data.", "title": "Applications" }, { "paragraph_id": 21, "text": "Graph-theoretic methods, in various forms, have proven particularly useful in linguistics, since natural language often lends itself well to discrete structure. Traditionally, syntax and compositional semantics follow tree-based structures, whose expressive power lies in the principle of compositionality, modeled in a hierarchical graph. More contemporary approaches such as head-driven phrase structure grammar model the syntax of natural language using typed feature structures, which are directed acyclic graphs. Within lexical semantics, especially as applied to computers, modeling word meaning is easier when a given word is understood in terms of related words; semantic networks are therefore important in computational linguistics. Still, other methods in phonology (e.g. optimality theory, which uses lattice graphs) and morphology (e.g. finite-state morphology, using finite-state transducers) are common in the analysis of language as a graph. Indeed, the usefulness of this area of mathematics to linguistics has borne organizations such as TextGraphs, as well as various 'Net' projects, such as WordNet, VerbNet, and others.", "title": "Applications" }, { "paragraph_id": 22, "text": "Graph theory is also used to study molecules in chemistry and physics. In condensed matter physics, the three-dimensional structure of complicated simulated atomic structures can be studied quantitatively by gathering statistics on graph-theoretic properties related to the topology of the atoms. Also, \"the Feynman graphs and rules of calculation summarize quantum field theory in a form in close contact with the experimental numbers one wants to understand.\" In chemistry a graph makes a natural model for a molecule, where vertices represent atoms and edges bonds. This approach is especially used in computer processing of molecular structures, ranging from chemical editors to database searching. In statistical physics, graphs can represent local connections between interacting parts of a system, as well as the dynamics of a physical process on such systems. Similarly, in computational neuroscience graphs can be used to represent functional connections between brain areas that interact to give rise to various cognitive processes, where the vertices represent different areas of the brain and the edges represent the connections between those areas. Graph theory plays an important role in electrical modeling of electrical networks, here, weights are associated with resistance of the wire segments to obtain electrical properties of network structures. Graphs are also used to represent the micro-scale channels of porous media, in which the vertices represent the pores and the edges represent the smaller channels connecting the pores. Chemical graph theory uses the molecular graph as a means to model molecules. Graphs and networks are excellent models to study and understand phase transitions and critical phenomena. Removal of nodes or edges leads to a critical transition where the network breaks into small clusters which is studied as a phase transition. This breakdown is studied via percolation theory.", "title": "Applications" }, { "paragraph_id": 23, "text": "Graph theory is also widely used in sociology as a way, for example, to measure actors' prestige or to explore rumor spreading, notably through the use of social network analysis software. Under the umbrella of social networks are many different types of graphs. Acquaintanceship and friendship graphs describe whether people know each other. Influence graphs model whether certain people can influence the behavior of others. Finally, collaboration graphs model whether two people work together in a particular way, such as acting in a movie together.", "title": "Applications" }, { "paragraph_id": 24, "text": "Likewise, graph theory is useful in biology and conservation efforts where a vertex can represent regions where certain species exist (or inhabit) and the edges represent migration paths or movement between the regions. This information is important when looking at breeding patterns or tracking the spread of disease, parasites or how changes to the movement can affect other species.", "title": "Applications" }, { "paragraph_id": 25, "text": "Graphs are also commonly used in molecular biology and genomics to model and analyse datasets with complex relationships. For example, graph-based methods are often used to 'cluster' cells together into cell-types in single-cell transcriptome analysis. Another use is to model genes or proteins in a pathway and study the relationships between them, such as metabolic pathways and gene regulatory networks. Evolutionary trees, ecological networks, and hierarchical clustering of gene expression patterns are also represented as graph structures.", "title": "Applications" }, { "paragraph_id": 26, "text": "Graph theory is also used in connectomics; nervous systems can be seen as a graph, where the nodes are neurons and the edges are the connections between them.", "title": "Applications" }, { "paragraph_id": 27, "text": "In mathematics, graphs are useful in geometry and certain parts of topology such as knot theory. Algebraic graph theory has close links with group theory. Algebraic graph theory has been applied to many areas including dynamic systems and complexity.", "title": "Applications" }, { "paragraph_id": 28, "text": "A graph structure can be extended by assigning a weight to each edge of the graph. Graphs with weights, or weighted graphs, are used to represent structures in which pairwise connections have some numerical values. For example, if a graph represents a road network, the weights could represent the length of each road. There may be several weights associated with each edge, including distance (as in the previous example), travel time, or monetary cost. Such weighted graphs are commonly used to program GPS's, and travel-planning search engines that compare flight times and costs.", "title": "Applications" }, { "paragraph_id": 29, "text": "The paper written by Leonhard Euler on the Seven Bridges of Königsberg and published in 1736 is regarded as the first paper in the history of graph theory. This paper, as well as the one written by Vandermonde on the knight problem, carried on with the analysis situs initiated by Leibniz. Euler's formula relating the number of edges, vertices, and faces of a convex polyhedron was studied and generalized by Cauchy and L'Huilier, and represents the beginning of the branch of mathematics known as topology.", "title": "History" }, { "paragraph_id": 30, "text": "More than one century after Euler's paper on the bridges of Königsberg and while Listing was introducing the concept of topology, Cayley was led by an interest in particular analytical forms arising from differential calculus to study a particular class of graphs, the trees. This study had many implications for theoretical chemistry. The techniques he used mainly concern the enumeration of graphs with particular properties. Enumerative graph theory then arose from the results of Cayley and the fundamental results published by Pólya between 1935 and 1937. These were generalized by De Bruijn in 1959. Cayley linked his results on trees with contemporary studies of chemical composition. The fusion of ideas from mathematics with those from chemistry began what has become part of the standard terminology of graph theory.", "title": "History" }, { "paragraph_id": 31, "text": "In particular, the term \"graph\" was introduced by Sylvester in a paper published in 1878 in Nature, where he draws an analogy between \"quantic invariants\" and \"co-variants\" of algebra and molecular diagrams:", "title": "History" }, { "paragraph_id": 32, "text": "The first textbook on graph theory was written by Dénes Kőnig, and published in 1936. Another book by Frank Harary, published in 1969, was \"considered the world over to be the definitive textbook on the subject\", and enabled mathematicians, chemists, electrical engineers and social scientists to talk to each other. Harary donated all of the royalties to fund the Pólya Prize.", "title": "History" }, { "paragraph_id": 33, "text": "One of the most famous and stimulating problems in graph theory is the four color problem: \"Is it true that any map drawn in the plane may have its regions colored with four colors, in such a way that any two regions having a common border have different colors?\" This problem was first posed by Francis Guthrie in 1852 and its first written record is in a letter of De Morgan addressed to Hamilton the same year. Many incorrect proofs have been proposed, including those by Cayley, Kempe, and others. The study and the generalization of this problem by Tait, Heawood, Ramsey and Hadwiger led to the study of the colorings of the graphs embedded on surfaces with arbitrary genus. Tait's reformulation generated a new class of problems, the factorization problems, particularly studied by Petersen and Kőnig. The works of Ramsey on colorations and more specially the results obtained by Turán in 1941 was at the origin of another branch of graph theory, extremal graph theory.", "title": "History" }, { "paragraph_id": 34, "text": "The four color problem remained unsolved for more than a century. In 1969 Heinrich Heesch published a method for solving the problem using computers. A computer-aided proof produced in 1976 by Kenneth Appel and Wolfgang Haken makes fundamental use of the notion of \"discharging\" developed by Heesch. The proof involved checking the properties of 1,936 configurations by computer, and was not fully accepted at the time due to its complexity. A simpler proof considering only 633 configurations was given twenty years later by Robertson, Seymour, Sanders and Thomas.", "title": "History" }, { "paragraph_id": 35, "text": "The autonomous development of topology from 1860 and 1930 fertilized graph theory back through the works of Jordan, Kuratowski and Whitney. Another important factor of common development of graph theory and topology came from the use of the techniques of modern algebra. The first example of such a use comes from the work of the physicist Gustav Kirchhoff, who published in 1845 his Kirchhoff's circuit laws for calculating the voltage and current in electric circuits.", "title": "History" }, { "paragraph_id": 36, "text": "The introduction of probabilistic methods in graph theory, especially in the study of Erdős and Rényi of the asymptotic probability of graph connectivity, gave rise to yet another branch, known as random graph theory, which has been a fruitful source of graph-theoretic results.", "title": "History" }, { "paragraph_id": 37, "text": "A graph is an abstraction of relationships that emerge in nature; hence, it cannot be coupled to a certain representation. The way it is represented depends on the degree of convenience such representation provides for a certain application. The most common representations are the visual, in which, usually, vertices are drawn and connected by edges, and the tabular, in which rows of a table provide information about the relationships between the vertices within the graph.", "title": "Representation" }, { "paragraph_id": 38, "text": "Graphs are usually represented visually by drawing a point or circle for every vertex, and drawing a line between two vertices if they are connected by an edge. If the graph is directed, the direction is indicated by drawing an arrow. If the graph is weighted, the weight is added on the arrow.", "title": "Representation" }, { "paragraph_id": 39, "text": "A graph drawing should not be confused with the graph itself (the abstract, non-visual structure) as there are several ways to structure the graph drawing. All that matters is which vertices are connected to which others by how many edges and not the exact layout. In practice, it is often difficult to decide if two drawings represent the same graph. Depending on the problem domain some layouts may be better suited and easier to understand than others.", "title": "Representation" }, { "paragraph_id": 40, "text": "The pioneering work of W. T. Tutte was very influential on the subject of graph drawing. Among other achievements, he introduced the use of linear algebraic methods to obtain graph drawings.", "title": "Representation" }, { "paragraph_id": 41, "text": "Graph drawing also can be said to encompass problems that deal with the crossing number and its various generalizations. The crossing number of a graph is the minimum number of intersections between edges that a drawing of the graph in the plane must contain. For a planar graph, the crossing number is zero by definition. Drawings on surfaces other than the plane are also studied.", "title": "Representation" }, { "paragraph_id": 42, "text": "There are other techniques to visualize a graph away from vertices and edges, including circle packings, intersection graph, and other visualizations of the adjacency matrix.", "title": "Representation" }, { "paragraph_id": 43, "text": "The tabular representation lends itself well to computational applications. There are different ways to store graphs in a computer system. The data structure used depends on both the graph structure and the algorithm used for manipulating the graph. Theoretically one can distinguish between list and matrix structures but in concrete applications the best structure is often a combination of both. List structures are often preferred for sparse graphs as they have smaller memory requirements. Matrix structures on the other hand provide faster access for some applications but can consume huge amounts of memory. Implementations of sparse matrix structures that are efficient on modern parallel computer architectures are an object of current investigation.", "title": "Representation" }, { "paragraph_id": 44, "text": "List structures include the edge list, an array of pairs of vertices, and the adjacency list, which separately lists the neighbors of each vertex: Much like the edge list, each vertex has a list of which vertices it is adjacent to.", "title": "Representation" }, { "paragraph_id": 45, "text": "Matrix structures include the incidence matrix, a matrix of 0's and 1's whose rows represent vertices and whose columns represent edges, and the adjacency matrix, in which both the rows and columns are indexed by vertices. In both cases a 1 indicates two adjacent objects and a 0 indicates two non-adjacent objects. The degree matrix indicates the degree of vertices. The Laplacian matrix is a modified form of the adjacency matrix that incorporates information about the degrees of the vertices, and is useful in some calculations such as Kirchhoff's theorem on the number of spanning trees of a graph. The distance matrix, like the adjacency matrix, has both its rows and columns indexed by vertices, but rather than containing a 0 or a 1 in each cell it contains the length of a shortest path between two vertices.", "title": "Representation" }, { "paragraph_id": 46, "text": "There is a large literature on graphical enumeration: the problem of counting graphs meeting specified conditions. Some of this work is found in Harary and Palmer (1973).", "title": "Problems" }, { "paragraph_id": 47, "text": "A common problem, called the subgraph isomorphism problem, is finding a fixed graph as a subgraph in a given graph. One reason to be interested in such a question is that many graph properties are hereditary for subgraphs, which means that a graph has the property if and only if all subgraphs have it too. Unfortunately, finding maximal subgraphs of a certain kind is often an NP-complete problem. For example:", "title": "Problems" }, { "paragraph_id": 48, "text": "One special case of subgraph isomorphism is the graph isomorphism problem. It asks whether two graphs are isomorphic. It is not known whether this problem is NP-complete, nor whether it can be solved in polynomial time.", "title": "Problems" }, { "paragraph_id": 49, "text": "A similar problem is finding induced subgraphs in a given graph. Again, some important graph properties are hereditary with respect to induced subgraphs, which means that a graph has a property if and only if all induced subgraphs also have it. Finding maximal induced subgraphs of a certain kind is also often NP-complete. For example:", "title": "Problems" }, { "paragraph_id": 50, "text": "Still another such problem, the minor containment problem, is to find a fixed graph as a minor of a given graph. A minor or subcontraction of a graph is any graph obtained by taking a subgraph and contracting some (or no) edges. Many graph properties are hereditary for minors, which means that a graph has a property if and only if all minors have it too. For example, Wagner's Theorem states:", "title": "Problems" }, { "paragraph_id": 51, "text": "A similar problem, the subdivision containment problem, is to find a fixed graph as a subdivision of a given graph. A subdivision or homeomorphism of a graph is any graph obtained by subdividing some (or no) edges. Subdivision containment is related to graph properties such as planarity. For example, Kuratowski's Theorem states:", "title": "Problems" }, { "paragraph_id": 52, "text": "Another problem in subdivision containment is the Kelmans–Seymour conjecture:", "title": "Problems" }, { "paragraph_id": 53, "text": "Another class of problems has to do with the extent to which various species and generalizations of graphs are determined by their point-deleted subgraphs. For example:", "title": "Problems" }, { "paragraph_id": 54, "text": "Many problems and theorems in graph theory have to do with various ways of coloring graphs. Typically, one is interested in coloring a graph so that no two adjacent vertices have the same color, or with other similar restrictions. One may also consider coloring edges (possibly so that no two coincident edges are the same color), or other variations. Among the famous results and conjectures concerning graph coloring are the following:", "title": "Problems" }, { "paragraph_id": 55, "text": "Constraint modeling theories concern families of directed graphs related by a partial order. In these applications, graphs are ordered by specificity, meaning that more constrained graphs—which are more specific and thus contain a greater amount of information—are subsumed by those that are more general. Operations between graphs include evaluating the direction of a subsumption relationship between two graphs, if any, and computing graph unification. The unification of two argument graphs is defined as the most general graph (or the computation thereof) that is consistent with (i.e. contains all of the information in) the inputs, if such a graph exists; efficient unification algorithms are known.", "title": "Problems" }, { "paragraph_id": 56, "text": "For constraint frameworks which are strictly compositional, graph unification is the sufficient satisfiability and combination function. Well-known applications include automatic theorem proving and modeling the elaboration of linguistic structure.", "title": "Problems" }, { "paragraph_id": 57, "text": "There are numerous problems arising especially from applications that have to do with various notions of flows in networks, for example:", "title": "Problems" }, { "paragraph_id": 58, "text": "Covering problems in graphs may refer to various set cover problems on subsets of vertices/subgraphs.", "title": "Problems" }, { "paragraph_id": 59, "text": "Decomposition, defined as partitioning the edge set of a graph (with as many vertices as necessary accompanying the edges of each part of the partition), has a wide variety of questions. Often, the problem is to decompose a graph into subgraphs isomorphic to a fixed graph; for instance, decomposing a complete graph into Hamiltonian cycles. Other problems specify a family of graphs into which a given graph should be decomposed, for instance, a family of cycles, or decomposing a complete graph Kn into n − 1 specified trees having, respectively, 1, 2, 3, ..., n − 1 edges.", "title": "Problems" }, { "paragraph_id": 60, "text": "Some specific decomposition problems that have been studied include:", "title": "Problems" }, { "paragraph_id": 61, "text": "Many problems involve characterizing the members of various classes of graphs. Some examples of such questions are below:", "title": "Problems" } ]
In mathematics, graph theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of vertices which are connected by edges. A distinction is made between undirected graphs, where edges link two vertices symmetrically, and directed graphs, where edges link two vertices asymmetrically. Graphs are one of the principal objects of study in discrete mathematics.
2001-09-30T10:56:11Z
2023-12-28T07:22:19Z
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https://en.wikipedia.org/wiki/Graph_theory
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Gumby
Gumby is a cartoon character and associated media franchise created by Art Clokey. The title character, Gumby, is a blocky green humanoid made of clay. Gumby stars in two television series, Gumby: The Movie, and other media. Upon his debut, in 1953, he immediately became a famous example of stop motion clay animation and an American cultural icon, spawning tributes, parodies, and merchandising. The Gumby franchise follows Gumby's adventures through different environments and historical eras. His primary sidekick is Pokey, an anthropomorphic orange pony. His arch-nemeses are the G and J Blockheads, a pair of silent antagonistic red humanoid figures with cube-shaped heads, one with the letter G on the block, the other with the letter J. Their creation was inspired by the trouble-making Katzenjammer Kids. Other characters include Prickle, a yellow fire-breathing dinosaur who sometimes styles himself as a detective with pipe and deerstalker hat like Sherlock Holmes; Goo, a flying blue shapeshifting mermaid who spits blue goo balls; Gumbo and Gumba, Gumby's parents; and Nopey, Gumby's dog whose entire vocabulary is the word "nope". The 1988 syndicated series added Gumby's sister Minga, mastodon friend Denali, and chicken friend Tilly. Gumby was created by Art Clokey in the early 1950s after he finished film school at the University of Southern California (USC). Clokey's first animated film was a 1953 three-minute student film called Gumbasia, a surreal montage of moving and expanding lumps of clay set to music in a parody of Disney's Fantasia. Gumbasia was created in the "kinesthetic" style taught by Clokey's USC professor Slavko Vorkapić, described as "massaging of the eye cells". Much of Gumby's look and feel was inspired by this technique of camera movements and editing. In 1955, Clokey showed Gumbasia to film producer Sam Engel, who encouraged him to develop his technique by animating figures into children's stories. On January 29, 1955, Clokey produced and filmed the first pilot episode starring Gumby, titled Adventures of Gumby: A Sample, but never aired. The name "Gumby" came from the muddy clay found at Clokey's grandparents' farm that his family called "gumbo". Gumby's appearance was inspired by a suggestion from his wife, Ruth (née Parkander), that Gumby be based on the Gingerbread Man. Clokey saw the color green as both racially neutral and a symbol of life. Gumby's legs and feet were made wide to pragmatically ensure that the figure would stand up during stop motion filming. Gumby's slanted head was based on the hairstyle of Clokey's father, Charles Farrington, in an old photograph. The pilot episode was seen by NBC executive Thomas Warren Sarnoff, who asked Clokey to make another one. The second episode, Gumby on the Moon, became a huge hit on Howdy Doody, so Sarnoff ordered a series in 1955 titled The Gumby Show. In 1955 and 1956, 25 episodes at 11 minutes each aired on NBC. In early episodes, Gumby's voice was provided by Ruth Eggleston, wife of the show's art director Al Eggleston, until 1957 when Dallas McKennon assumed the role. Al Eggleston also invented Pokey, the little orange pony who was Gumby's best friend and was introduced during the earliest episodes. Because of its variety format, The Gumby Show features Clokey's animations plus interviews and games. During this time, the show had two successive hosts, Robert Nicholson and Pinky Lee. In 1959, The Gumby Show entered syndication, and more episodes were produced in the 1960s. Production started in Hollywood and in 1960 moved to a larger studio in Glendora, California, where it remained until production ended in 1969. During this time, Gumby was primarily voiced by Norma MacMillan and occasionally by Ginny Tyler. The cartoon shorts introduce new characters including a blue mermaid named Goo and a yellow dinosaur named Prickle. Several sources claim that Dick Beals also voiced Gumby in the 1960s series. However, Beals himself refuted this claim in a 2001 interview. Beginning in 1982, Gumby was parodied by Eddie Murphy on Saturday Night Live. In it, when the cameras are off, the sweet Gumby reverts to his true self of an irascible, cigar-chomping celebrity who is highly demanding of the production executives. Whenever they refuse his demands, Gumby asserts his star status by saying "I'm Gumby, dammit!" in an exaggerated Jewish accent. According to Joseph Clokey, Art's son, he and Art "thought Eddie was a genius in the way he played that character". In 1987, the original Gumby shorts were released on home video. In 1988, Gumby appeared in The Puppetoon Movie. This renewed interest led to a new Gumby Adventures series of 99 episodes of 7-minutes, produced for television syndication in association with Lorimar-Telepictures in 1988. Dallas McKennon voices Gumby in the new adventures, in which Gumby and his pals travels beyond their toyland setting as a musical band. Gumby Adventures includes new characters, such as Gumby's little sister Minga, a mastodon named Denali and a chicken named Tilly. The new series includes the 1950s and 1960s shorts, with new audio. The voices were re-recorded and the music was replaced by Jerry Gerber's new synthesizer score. Legal issues prevented Clokey from renewing rights to the original Capitol Records production tracks. Starting in 1992, TV channels such as Nickelodeon and Cartoon Network aired reruns of Gumby episodes. In 1995, Clokey's production company produced an independently released theatrical film, Gumby: The Movie, as the character's first feature-length adventure, with John R. Dilworth, creator of Courage the Cowardly Dog, as animation consultant. In it, the villainous Blockheads replace Gumby and his band with robots and kidnap their dog, Lowbelly. It has in-joke homages to science-fiction films such as Star Wars, The Terminator, and 2001: A Space Odyssey. In 1998, the Gumby episode "Robot Rumpus" was featured on Mystery Science Theater 3000. On March 16, 2007, YouTube announced that all Gumby episodes would appear in their full-length form on its site, digitally remastered and with their original soundtracks. This deal also extended to other video sites, including AOL. In March 2007, KQED-TV broadcast an hour-long documentary Gumby Dharma in its Truly CA series. It details Clokey's life and work, and has new animation of Gumby and Pokey. For these sequences, animator Stephen A. Buckley voiced Gumby and Clokey voiced Pokey. In 2012, MeTV began airing Gumby in its weekend morning animation block until the end of the year. In 2014, the VOD service Kabillion Broadcast Gumby In February 2022, Fox Entertainment, the TV production division of the Murdoch family's Fox Corporation, announced it had acquired the Gumby intellectual property from the estate of Art's son, Joseph Clokey, encompassing all rights including "film, TV and streaming, consumer products, licensing, publishing and all other categories", with plans to launch new series across linear and digital platforms, while adding to the classic Gumby material available on its free streaming platform Tubi. Before Fox ownership he made a cameo in the seventeenth season of The Simpsons in the episode, "The Girl Who Slept Too Little". In 1993, TV Guide named Gumby the best cartoon series of the 1950s in its issue celebrating 40 years of television. Beginning in 1994, the Library of Congress used Gumby as a "spokescharacter" for Adventures into Books: Gumby's World, a traveling exhibition promoting the Center for the Book's national reading campaign from 1997 to 2000. By the end of the 1990s, Gumby and Pokey had also appeared in various commercials for Cheerios cereal. On August 4, 2006, the Center for Puppetry Arts in Atlanta opened Art Clokey's Gumby: The First Fifty Years. This exhibition featured many of the original puppets and sets, along with screening of Clokey's films. This event was conceived by David Scheve of T.D.A. Animation and Joe Clokey of Premavision, and was one of several exhibits that opened around the country, celebrating the 50th anniversary of The Gumby Show. The children's book Gumby Goes to the Sun was also published that year to commemorate the anniversary. The book was originally created in the 1980s by Clokey's daughter, Holly Harman (who voiced Gumby's sister, Minga in the 1988 series). In 2007, the Gumby comic book series was nominated for two Eisner Awards, Best New Series and Best Publication for a Young Audience, and won the latter. A Gumby graphic novel titled Gumby: 50 Shades of Clay was released in 2017. On October 12, 2011, a Google Doodle acknowledged Art Clokey's 90th birthday. It was composed of a toy block with a "G" and five clay balls in the Google colors. Clicking each ball revealed the Blockheads, Prickle, Goo, Gumby, and Pokey. On December 21, 2019, Eddie Murphy reprised his role while hosting SNL during a skit on Weekend Update. The most prominent of Gumby merchandise is the bendable figure set by Lakeside Toys. Several single packs and multi-figure sets were made by Jesco (later Trendmasters), and a 50th anniversary collection. There are plush dolls, keychains, mugs, a 1988 Colorforms set, a 1995 Trendmasters playset, and a Kubricks set by Medicom. A tribute album, Gumby: The Green Album, produced by Shepard Stern, was released in 1989. In August 2005, the first video game featuring Gumby, Gumby vs. the Astrobots, was released by Namco for the Game Boy Advance. The plot follows the Blockheads and their cohorts, the Astrobots capturing Pokey, Prickle, Goo, Gumbo and Gumba and placing them in books. With his friends and parents in trouble, Gumby sets out to rescue them and defeat the Blockheads. The Gumby images and toys are registered trademarks of Prema Toy Company. Premavision owned the distribution rights to the Gumby cartoons, having been reverted from previous distributor Warner Bros. Television in 2003, and had licensed the rights to Classic Media until September 30, 2012. At this time, Classic Media was officially acquired by DreamWorks Animation and branded as DreamWorks Classics, which became a subsidiary of NBCUniversal in 2016. As of April 2015, NCircle Entertainment owns home video and digital distribution rights to the cartoons.
[ { "paragraph_id": 0, "text": "Gumby is a cartoon character and associated media franchise created by Art Clokey. The title character, Gumby, is a blocky green humanoid made of clay. Gumby stars in two television series, Gumby: The Movie, and other media. Upon his debut, in 1953, he immediately became a famous example of stop motion clay animation and an American cultural icon, spawning tributes, parodies, and merchandising.", "title": "" }, { "paragraph_id": 1, "text": "The Gumby franchise follows Gumby's adventures through different environments and historical eras. His primary sidekick is Pokey, an anthropomorphic orange pony. His arch-nemeses are the G and J Blockheads, a pair of silent antagonistic red humanoid figures with cube-shaped heads, one with the letter G on the block, the other with the letter J. Their creation was inspired by the trouble-making Katzenjammer Kids. Other characters include Prickle, a yellow fire-breathing dinosaur who sometimes styles himself as a detective with pipe and deerstalker hat like Sherlock Holmes; Goo, a flying blue shapeshifting mermaid who spits blue goo balls; Gumbo and Gumba, Gumby's parents; and Nopey, Gumby's dog whose entire vocabulary is the word \"nope\". The 1988 syndicated series added Gumby's sister Minga, mastodon friend Denali, and chicken friend Tilly.", "title": "Overview" }, { "paragraph_id": 2, "text": "Gumby was created by Art Clokey in the early 1950s after he finished film school at the University of Southern California (USC).", "title": "History" }, { "paragraph_id": 3, "text": "Clokey's first animated film was a 1953 three-minute student film called Gumbasia, a surreal montage of moving and expanding lumps of clay set to music in a parody of Disney's Fantasia. Gumbasia was created in the \"kinesthetic\" style taught by Clokey's USC professor Slavko Vorkapić, described as \"massaging of the eye cells\". Much of Gumby's look and feel was inspired by this technique of camera movements and editing.", "title": "History" }, { "paragraph_id": 4, "text": "In 1955, Clokey showed Gumbasia to film producer Sam Engel, who encouraged him to develop his technique by animating figures into children's stories. On January 29, 1955, Clokey produced and filmed the first pilot episode starring Gumby, titled Adventures of Gumby: A Sample, but never aired.", "title": "History" }, { "paragraph_id": 5, "text": "The name \"Gumby\" came from the muddy clay found at Clokey's grandparents' farm that his family called \"gumbo\". Gumby's appearance was inspired by a suggestion from his wife, Ruth (née Parkander), that Gumby be based on the Gingerbread Man. Clokey saw the color green as both racially neutral and a symbol of life. Gumby's legs and feet were made wide to pragmatically ensure that the figure would stand up during stop motion filming. Gumby's slanted head was based on the hairstyle of Clokey's father, Charles Farrington, in an old photograph.", "title": "History" }, { "paragraph_id": 6, "text": "The pilot episode was seen by NBC executive Thomas Warren Sarnoff, who asked Clokey to make another one. The second episode, Gumby on the Moon, became a huge hit on Howdy Doody, so Sarnoff ordered a series in 1955 titled The Gumby Show. In 1955 and 1956, 25 episodes at 11 minutes each aired on NBC. In early episodes, Gumby's voice was provided by Ruth Eggleston, wife of the show's art director Al Eggleston, until 1957 when Dallas McKennon assumed the role. Al Eggleston also invented Pokey, the little orange pony who was Gumby's best friend and was introduced during the earliest episodes.", "title": "History" }, { "paragraph_id": 7, "text": "Because of its variety format, The Gumby Show features Clokey's animations plus interviews and games. During this time, the show had two successive hosts, Robert Nicholson and Pinky Lee.", "title": "History" }, { "paragraph_id": 8, "text": "In 1959, The Gumby Show entered syndication, and more episodes were produced in the 1960s. Production started in Hollywood and in 1960 moved to a larger studio in Glendora, California, where it remained until production ended in 1969. During this time, Gumby was primarily voiced by Norma MacMillan and occasionally by Ginny Tyler. The cartoon shorts introduce new characters including a blue mermaid named Goo and a yellow dinosaur named Prickle.", "title": "History" }, { "paragraph_id": 9, "text": "Several sources claim that Dick Beals also voiced Gumby in the 1960s series. However, Beals himself refuted this claim in a 2001 interview.", "title": "History" }, { "paragraph_id": 10, "text": "Beginning in 1982, Gumby was parodied by Eddie Murphy on Saturday Night Live. In it, when the cameras are off, the sweet Gumby reverts to his true self of an irascible, cigar-chomping celebrity who is highly demanding of the production executives. Whenever they refuse his demands, Gumby asserts his star status by saying \"I'm Gumby, dammit!\" in an exaggerated Jewish accent. According to Joseph Clokey, Art's son, he and Art \"thought Eddie was a genius in the way he played that character\". In 1987, the original Gumby shorts were released on home video. In 1988, Gumby appeared in The Puppetoon Movie.", "title": "History" }, { "paragraph_id": 11, "text": "This renewed interest led to a new Gumby Adventures series of 99 episodes of 7-minutes, produced for television syndication in association with Lorimar-Telepictures in 1988. Dallas McKennon voices Gumby in the new adventures, in which Gumby and his pals travels beyond their toyland setting as a musical band. Gumby Adventures includes new characters, such as Gumby's little sister Minga, a mastodon named Denali and a chicken named Tilly.", "title": "History" }, { "paragraph_id": 12, "text": "The new series includes the 1950s and 1960s shorts, with new audio. The voices were re-recorded and the music was replaced by Jerry Gerber's new synthesizer score. Legal issues prevented Clokey from renewing rights to the original Capitol Records production tracks.", "title": "History" }, { "paragraph_id": 13, "text": "Starting in 1992, TV channels such as Nickelodeon and Cartoon Network aired reruns of Gumby episodes. In 1995, Clokey's production company produced an independently released theatrical film, Gumby: The Movie, as the character's first feature-length adventure, with John R. Dilworth, creator of Courage the Cowardly Dog, as animation consultant. In it, the villainous Blockheads replace Gumby and his band with robots and kidnap their dog, Lowbelly. It has in-joke homages to science-fiction films such as Star Wars, The Terminator, and 2001: A Space Odyssey. In 1998, the Gumby episode \"Robot Rumpus\" was featured on Mystery Science Theater 3000.", "title": "History" }, { "paragraph_id": 14, "text": "On March 16, 2007, YouTube announced that all Gumby episodes would appear in their full-length form on its site, digitally remastered and with their original soundtracks. This deal also extended to other video sites, including AOL. In March 2007, KQED-TV broadcast an hour-long documentary Gumby Dharma in its Truly CA series. It details Clokey's life and work, and has new animation of Gumby and Pokey. For these sequences, animator Stephen A. Buckley voiced Gumby and Clokey voiced Pokey.", "title": "History" }, { "paragraph_id": 15, "text": "In 2012, MeTV began airing Gumby in its weekend morning animation block until the end of the year.", "title": "History" }, { "paragraph_id": 16, "text": "In 2014, the VOD service Kabillion Broadcast Gumby", "title": "History" }, { "paragraph_id": 17, "text": "In February 2022, Fox Entertainment, the TV production division of the Murdoch family's Fox Corporation, announced it had acquired the Gumby intellectual property from the estate of Art's son, Joseph Clokey, encompassing all rights including \"film, TV and streaming, consumer products, licensing, publishing and all other categories\", with plans to launch new series across linear and digital platforms, while adding to the classic Gumby material available on its free streaming platform Tubi. Before Fox ownership he made a cameo in the seventeenth season of The Simpsons in the episode, \"The Girl Who Slept Too Little\".", "title": "History" }, { "paragraph_id": 18, "text": "In 1993, TV Guide named Gumby the best cartoon series of the 1950s in its issue celebrating 40 years of television.", "title": "Reception and legacy" }, { "paragraph_id": 19, "text": "Beginning in 1994, the Library of Congress used Gumby as a \"spokescharacter\" for Adventures into Books: Gumby's World, a traveling exhibition promoting the Center for the Book's national reading campaign from 1997 to 2000. By the end of the 1990s, Gumby and Pokey had also appeared in various commercials for Cheerios cereal.", "title": "Reception and legacy" }, { "paragraph_id": 20, "text": "On August 4, 2006, the Center for Puppetry Arts in Atlanta opened Art Clokey's Gumby: The First Fifty Years. This exhibition featured many of the original puppets and sets, along with screening of Clokey's films. This event was conceived by David Scheve of T.D.A. Animation and Joe Clokey of Premavision, and was one of several exhibits that opened around the country, celebrating the 50th anniversary of The Gumby Show. The children's book Gumby Goes to the Sun was also published that year to commemorate the anniversary. The book was originally created in the 1980s by Clokey's daughter, Holly Harman (who voiced Gumby's sister, Minga in the 1988 series).", "title": "Reception and legacy" }, { "paragraph_id": 21, "text": "In 2007, the Gumby comic book series was nominated for two Eisner Awards, Best New Series and Best Publication for a Young Audience, and won the latter. A Gumby graphic novel titled Gumby: 50 Shades of Clay was released in 2017.", "title": "Reception and legacy" }, { "paragraph_id": 22, "text": "On October 12, 2011, a Google Doodle acknowledged Art Clokey's 90th birthday. It was composed of a toy block with a \"G\" and five clay balls in the Google colors. Clicking each ball revealed the Blockheads, Prickle, Goo, Gumby, and Pokey.", "title": "Reception and legacy" }, { "paragraph_id": 23, "text": "On December 21, 2019, Eddie Murphy reprised his role while hosting SNL during a skit on Weekend Update.", "title": "Reception and legacy" }, { "paragraph_id": 24, "text": "The most prominent of Gumby merchandise is the bendable figure set by Lakeside Toys. Several single packs and multi-figure sets were made by Jesco (later Trendmasters), and a 50th anniversary collection. There are plush dolls, keychains, mugs, a 1988 Colorforms set, a 1995 Trendmasters playset, and a Kubricks set by Medicom. A tribute album, Gumby: The Green Album, produced by Shepard Stern, was released in 1989.", "title": "Merchandising" }, { "paragraph_id": 25, "text": "In August 2005, the first video game featuring Gumby, Gumby vs. the Astrobots, was released by Namco for the Game Boy Advance. The plot follows the Blockheads and their cohorts, the Astrobots capturing Pokey, Prickle, Goo, Gumbo and Gumba and placing them in books. With his friends and parents in trouble, Gumby sets out to rescue them and defeat the Blockheads.", "title": "Merchandising" }, { "paragraph_id": 26, "text": "The Gumby images and toys are registered trademarks of Prema Toy Company. Premavision owned the distribution rights to the Gumby cartoons, having been reverted from previous distributor Warner Bros. Television in 2003, and had licensed the rights to Classic Media until September 30, 2012. At this time, Classic Media was officially acquired by DreamWorks Animation and branded as DreamWorks Classics, which became a subsidiary of NBCUniversal in 2016. As of April 2015, NCircle Entertainment owns home video and digital distribution rights to the cartoons.", "title": "Merchandising" } ]
Gumby is a cartoon character and associated media franchise created by Art Clokey. The title character, Gumby, is a blocky green humanoid made of clay. Gumby stars in two television series, Gumby: The Movie, and other media. Upon his debut, in 1953, he immediately became a famous example of stop motion clay animation and an American cultural icon, spawning tributes, parodies, and merchandising.
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https://en.wikipedia.org/wiki/Gumby
12,406
Gioachino Rossini
Gioachino Antonio Rossini (29 February 1792 – 13 November 1868) was an Italian composer who gained fame for his 39 operas, although he also wrote many songs, some chamber music and piano pieces, and some sacred music. He set new standards for both comic and serious opera before retiring from large-scale composition while still in his thirties, at the height of his popularity. Born in Pesaro to parents who were both musicians (his father a trumpeter, his mother a singer), Rossini began to compose by the age of twelve and was educated at music school in Bologna. His first opera was performed in Venice in 1810 when he was 18 years old. In 1815 he was engaged to write operas and manage theatres in Naples. In the period 1810–1823, he wrote 34 operas for the Italian stage that were performed in Venice, Milan, Ferrara, Naples and elsewhere; this productivity necessitated an almost formulaic approach for some components (such as overtures) and a certain amount of self-borrowing. During this period he produced his most popular works, including the comic operas L'italiana in Algeri, Il barbiere di Siviglia (known in English as The Barber of Seville) and La Cenerentola, which brought to a peak the opera buffa tradition he inherited from masters such as Domenico Cimarosa and Giovanni Paisiello. He also composed opera seria works such as Tancredi, Otello and Semiramide. All of these attracted admiration for their innovation in melody, harmonic and instrumental colour, and dramatic form. In 1824 he was contracted by the Opéra in Paris, for which he produced an opera to celebrate the coronation of Charles X, Il viaggio a Reims (later cannibalised for his first opera in French, Le comte Ory), revisions of two of his Italian operas, Le siège de Corinthe and Moïse, and in 1829 his last opera, Guillaume Tell. Rossini's withdrawal from opera for the last 40 years of his life has never been fully explained; contributory factors may have been ill-health, the wealth his success had brought him, and the rise of spectacular grand opera under composers such as Giacomo Meyerbeer. From the early 1830s to 1855, when he left Paris and was based in Bologna, Rossini wrote relatively little. On his return to Paris in 1855 he became renowned for his musical salons on Saturdays, regularly attended by musicians and the artistic and fashionable circles of Paris, for which he wrote the entertaining pieces Péchés de vieillesse. Guests included Franz Liszt, Anton Rubinstein, Giuseppe Verdi, Meyerbeer and Joseph Joachim. Rossini's last major composition was his Petite messe solennelle (1863). He died in Paris in 1868. Rossini was born in 1792 in Pesaro, a town on the Adriatic coast of Italy that was then part of the Papal States. He was the only child of Giuseppe Rossini, a trumpeter and horn player, and his wife Anna, née Guidarini, a seamstress by trade, daughter of a baker. Giuseppe Rossini was charming but impetuous and feckless; the burden of supporting the family and raising the child fell mainly on Anna, with some help from her mother and mother-in-law. Stendhal, who published a colourful biography of Rossini in 1824, wrote: Rossini's portion from his father, was the true native heirship of an Italian: a little music, a little religion, and a volume of Ariosto. The rest of his education was consigned to the legitimate school of southern youth, the society of his mother, the young singing girls of the company, those prima donnas in embryo, and the gossips of every village through which they passed. This was aided and refined by the musical barber and news-loving coffee-house keeper of the Papal village. Giuseppe was imprisoned at least twice: first in 1790 for insubordination to local authorities in a dispute about his employment as town trumpeter; and in 1799 and 1800 for republican activism and support of the troops of Napoleon against the Pope's Austrian backers. In 1798, when Rossini was aged six, his mother began a career as a professional singer in comic opera, and for a little over a decade was a considerable success in cities including Trieste and Bologna, before her untrained voice began to fail. In 1802 the family moved to Lugo, near Ravenna, where Rossini received a good basic education in Italian, Latin and arithmetic as well as music. He studied the horn with his father and other music with a priest, Giuseppe Malerbe, whose extensive library contained works by Haydn and Mozart, both little known in Italy at the time, but inspirational to the young Rossini. He was a quick learner, and by the age of twelve, he had composed a set of six sonatas for four stringed instruments, which were performed under the aegis of a rich patron in 1804. Two years later he was admitted to the recently opened Liceo Musicale, Bologna, initially studying singing, cello and piano, and joining the composition class soon afterwards. He wrote some substantial works while a student, including a mass and a cantata, and after two years he was invited to continue his studies. He declined the offer: the strict academic regime of the Liceo had given him a solid compositional technique, but as his biographer Richard Osborne puts it, "his instinct to continue his education in the real world finally asserted itself". While still at the Liceo, Rossini had performed in public as a singer and worked in theatres as a répétiteur and keyboard soloist. In 1810 at the request of the popular tenor Domenico Mombelli he wrote his first operatic score, a two-act operatic dramma serio, Demetrio e Polibio, to a libretto by Mombelli's wife. It was publicly staged in 1812, after the composer's first successes. Rossini and his parents concluded that his future lay in composing operas. The main operatic centre in northeastern Italy was Venice; under the tutelage of the composer Giovanni Morandi, a family friend, Rossini moved there in late 1810, when he was eighteen. Rossini's first opera to be staged was La cambiale di matrimonio, a one-act comedy, given at the small Teatro San Moisè in November 1810. The piece was a great success, and Rossini received what then seemed to him a considerable sum: "forty scudi – an amount I had never seen brought together". He later described the San Moisè as an ideal theatre for a young composer learning his craft – "everything tended to facilitate the début of a novice composer": it had no chorus, and a small company of principals; its main repertoire consisted of one-act comic operas (farse), staged with modest scenery and minimal rehearsal. Rossini followed the success of his first piece with three more farse for the house: L'inganno felice (1812), La scala di seta (1812), and Il signor Bruschino (1813). Rossini maintained his links with Bologna, where in 1811 he had a success directing Haydn's The Seasons, and a failure with his first full-length opera, L'equivoco stravagante. He also worked for opera houses in Ferrara and Rome. In mid-1812 he received a commission from La Scala, Milan, where his two-act comedy La pietra del paragone ran for fifty-three performances, a considerable run for the time, which brought him not only financial benefits, but exemption from military service and the title of maestro di cartello – a composer whose name on advertising posters guaranteed a full house. The following year his first opera seria, Tancredi, did well at La Fenice in Venice, and even better at Ferrara, with a rewritten, tragic ending. The success of Tancredi made Rossini's name known internationally; productions of the opera followed in London (1820) and New York (1825). Within weeks of Tancredi, Rossini had another box-office success with his comedy L'italiana in Algeri, composed in great haste and premiered in May 1813. 1814 was a less remarkable year for the rising composer, neither Il turco in Italia or Sigismondo pleasing the Milanese or Venetian public, respectively. 1815 marked an important stage in Rossini's career. In May he moved to Naples, to take up the post of director of music for the royal theatres. These included the Teatro di San Carlo, the city's leading opera house; its manager Domenico Barbaia was to be an important influence on the composer's career there. The musical establishment of Naples was not immediately welcoming to Rossini, who was seen as an intruder into its cherished operatic traditions. The city had once been the operatic capital of Europe; the memory of Cimarosa was revered and Paisiello was still living, but there were no local composers of any stature to follow them, and Rossini quickly won the public and critics round. Rossini's first work for the San Carlo, Elisabetta, regina d'Inghilterra was a dramma per musica in two acts, in which he reused substantial sections of his earlier works, unfamiliar to the local public. The Rossini scholars Philip Gossett and Patricia Brauner write, "It is as if Rossini wished to present himself to the Neapolitan public by offering a selection of the best music from operas unlikely to be revived in Naples." The new opera was received with tremendous enthusiasm, as was the Neapolitan premiere of L'italiana in Algeri, and Rossini's position in Naples was assured. For the first time, Rossini was able to write regularly for a resident company of first-rate singers and a fine orchestra, with adequate rehearsals, and schedules that made it unnecessary to compose in a rush to meet deadlines. Between 1815 and 1822 he composed eighteen more operas: nine for Naples and nine for opera houses in other cities. In 1816, for the Teatro Argentina in Rome, he composed the opera that was to become his best-known: Il barbiere di Siviglia (The Barber of Seville). There was already a popular opera of that title by Paisiello, and Rossini's version was originally given the same title as its hero, Almaviva. Despite an unsuccessful opening night, with mishaps on stage and many pro-Paisiello and anti-Rossini audience members, the opera quickly became a success, and by the time of its first revival, in Bologna a few months later, it was billed by its present Italian title and it rapidly eclipsed Paisiello's setting. Rossini's operas for the Teatro San Carlo were substantial, mainly serious pieces. His Otello (1816) provoked Lord Byron to write, "They have been crucifying Othello into an opera: music good, but lugubrious – but as for the words!" Nonetheless the piece proved generally popular and held the stage in frequent revivals until it was overshadowed by Verdi's version, seven decades later. Among his other works for the house were Mosè in Egitto, based on the biblical story of Moses and the Exodus from Egypt (1818), and La donna del lago, from Sir Walter Scott's poem The Lady of the Lake (1819). For La Scala he wrote the opera semiseria La gazza ladra (1817), and for Rome his version of the Cinderella story, La Cenerentola (1817). In 1817 came the first performance of one of his operas (L'Italiana) at the Theâtre-Italien in Paris; its success led to others of his operas being staged there, and eventually to his contract in Paris from 1824 to 1830. Rossini kept his personal life as private as possible, but he was known for his susceptibility to singers in the companies he worked with. Among his lovers in his early years were Ester Mombelli (Domenico's daughter) and Maria Marcolini of the Bologna company. By far the most important of these relationships – both personal and professional – was with Isabella Colbran, prima donna of the Teatro San Carlo (and former mistress of Barbaia). Rossini had heard her sing in Bologna in 1807, and when he moved to Naples he wrote a succession of important roles for her in opere serie. By the early 1820s, Rossini was beginning to tire of Naples. The failure of his operatic tragedy Ermione the previous year convinced him that he and the Neapolitan audiences had had enough of each other. An insurrection in Naples against the monarchy, though quickly crushed, unsettled Rossini; when Barbaia signed a contract to take the company to Vienna, Rossini was glad to join them, but did not reveal to Barbaia that he had no intention of returning to Naples afterwards. He travelled with Colbran, in March 1822, breaking their journey at Bologna, where they were married in the presence of his parents in a small church in Castenaso a few miles from the city. The bride was thirty-seven, the groom thirty. In Vienna, Rossini received a hero's welcome; his biographers describe it as "unprecedentedly feverish enthusiasm", "Rossini fever", and "near hysteria". The authoritarian chancellor of the Austrian Empire, Metternich, liked Rossini's music, and thought it free of all potential revolutionary or republican associations. He was therefore happy to permit the San Carlo company to perform the composer's operas. In a three-month season they played six of them, to audiences so enthusiastic that Beethoven's assistant, Anton Schindler, described it as "an idolatrous orgy". While in Vienna Rossini heard Beethoven's Eroica symphony, and was so moved that he determined to meet the reclusive composer. He finally managed to do so, and later described the encounter to many people, including Eduard Hanslick and Richard Wagner. He recalled that although conversation was hampered by Beethoven's deafness and Rossini's ignorance of German, Beethoven made it plain that he thought Rossini's talents were not for serious opera, and that "above all" he should "do more Barbiere" (Barbers). After the Vienna season Rossini returned to Castenaso to work with his librettist, Gaetano Rossi, on Semiramide, commissioned by La Fenice. It was premiered in February 1823, his last work for the Italian theatre. Colbran starred, but it was clear to everyone that her voice was in serious decline, and Semiramide ended her career in Italy. The work survived that one major disadvantage, and entered the international operatic repertory, remaining popular throughout the 19th century; in Richard Osborne's words, it brought "[Rossini's] Italian career to a spectacular close." In November 1823 Rossini and Colbran set off for London, where a lucrative contract had been offered. They stopped for four weeks en route in Paris. Although he was not as feverishly acclaimed by the Parisians as he had been in Vienna, he nevertheless had an exceptionally welcoming reception from the musical establishment and the public. When he attended a performance of Il barbiere at the Théâtre-Italien he was applauded, dragged onto the stage, and serenaded by the musicians. A banquet was given for him and his wife, attended by leading French composers and artists, and he found the cultural climate of Paris congenial. At the end of the year Rossini arrived in London, where he was received and made much of by the king, George IV, although the composer was by now unimpressed by royalty and aristocracy. Rossini and Colbran had signed contracts for an opera season at the King's Theatre in the Haymarket. Her vocal shortcomings were a serious liability, and she reluctantly retired from performing. Public opinion was not improved by Rossini's failure to provide a new opera, as promised. The impresario, Vincenzo Benelli, defaulted on his contract with the composer, but this was not known to the London press and public, who blamed Rossini. In a 2003 biography of the composer, Gaia Servadio comments that Rossini and England were not made for each other. He was prostrated by the Channel crossing and was unlikely to be enthused by the English weather or English cooking. Although his stay in London was financially rewarding – the British press reported disapprovingly that he had earned over £30,000 – he was happy to sign a contract at the French embassy in London to return to Paris, where he had felt much more at home. Rossini's new, and highly remunerative, contract with the French government was negotiated under Louis XVIII, who died in September 1824, soon after Rossini's arrival in Paris. It had been agreed that the composer would produce one grand opera for the Académie Royale de Musique and either an opera buffa or an opera semiseria for the Théâtre-Italien. He was also to help run the latter theatre and revise one of his earlier works for revival there. The death of the king and the accession of Charles X changed Rossini's plans, and his first new work for Paris was Il viaggio a Reims, an operatic entertainment given in June 1825 to celebrate Charles's coronation. It was Rossini's last opera with an Italian libretto. He permitted only four performances of the piece, intending to reuse the best of the music in a less ephemeral opera. About half the score of Le comte Ory (1828) is from the earlier work. Colbran's enforced retirement put a strain on the Rossinis' marriage, leaving her unoccupied while he continued to be the centre of musical attention and constantly in demand. She consoled herself with what Servadio describes as "a new pleasure in shopping"; for Rossini, Paris offered continual gourmet delights, as his increasingly rotund shape began to reflect. The first of the four operas Rossini wrote to French librettos were Le siège de Corinthe (1826) and Moïse et Pharaon (1827). Both were substantial reworkings of pieces written for Naples: Maometto II and Mosè in Egitto. Rossini took great care before beginning work on the first, learning to speak French and familiarising himself with traditional French operatic ways of declaiming the language. As well as dropping some of the original music that was in an ornate style unfashionable in Paris, Rossini accommodated local preferences by adding dances, hymn-like numbers and a greater role for the chorus. Rossini's mother, Anna, died in 1827; he had been devoted to her, and he felt her loss deeply. She and Colbran had never got on well, and Servadio suggests that after Anna died Rossini came to resent the surviving woman in his life. In 1828 Rossini wrote Le comte Ory, his only French-language comic opera. His determination to reuse music from Il viaggio a Reims caused problems for his librettists, who had to adapt their original plot and write French words to fit existing Italian numbers, but the opera was a success, and was seen in London within six months of the Paris premiere, and in New York in 1831. The following year Rossini wrote his long-awaited French grand opera, Guillaume Tell, based on Friedrich Schiller's 1804 play which drew on the William Tell legend. Guillaume Tell was well received. The orchestra and singers gathered outside Rossini's house after the premiere and performed the rousing finale to the second act in his honour. The newspaper Le Globe commented that a new era of music had begun. Gaetano Donizetti remarked that the first and last acts of the opera were written by Rossini, but the middle act was written by God. The work was an undoubted success, without being a smash hit; the public took some time in getting to grips with it, and some singers found it too demanding. It nonetheless was produced abroad within months of the premiere, and there was no suspicion that it would be the composer's last opera. Jointly with Semiramide, Guillaume Tell is Rossini's longest opera, at three hours and forty-five minutes, and the effort of composing it left him exhausted. Although within a year he was planning an operatic treatment of the Faust story, events and ill health overtook him. After the opening of Guillaume Tell the Rossinis had left Paris and were staying in Castenaso. Within a year events in Paris had Rossini hurrying back. Charles X was overthrown in a revolution in July 1830, and the new administration, headed by Louis Philippe I, announced radical cutbacks in government spending. Among the cuts was Rossini's lifetime annuity, won after hard negotiation with the previous regime. Attempting to restore the annuity was one of Rossini's reasons for returning. The other was to be with his new mistress, Olympe Pélissier. He left Colbran in Castenaso; she never returned to Paris and they never lived together again. The reasons for Rossini's withdrawal from opera have been continually discussed during and since his lifetime. Some have supposed that aged thirty-seven and in variable health, having negotiated a sizeable annuity from the French government, and having written thirty-nine operas, he simply planned to retire and kept to that plan. In a 1934 study of the composer, the critic Francis Toye coined the phrase "The Great Renunciation", and called Rossini's retirement a "phenomenon unique in the history of music and difficult to parallel in the whole history of art": Is there any other artist who thus deliberately, in the very prime of life, renounced that form of artistic production which had made him famous throughout the civilized world? The poet Heine compared Rossini's retirement with Shakespeare's withdrawal from writing: two geniuses recognising when they had accomplished the unsurpassable and not seeking to follow it. Others, then and later, suggested that Rossini had retired because of pique at the successes of Giacomo Meyerbeer and Fromental Halévy in the genre of grand opéra. Modern Rossini scholarship has generally discounted such theories, maintaining that Rossini had no intention of renouncing operatic composition, and that circumstances rather than personal choice made Guillaume Tell his last opera. Gossett and Richard Osborne suggest that illness may have been a major factor in Rossini's retirement. From about this time, Rossini had intermittent bad health, both physical and mental. He had contracted gonorrhoea in earlier years, which later led to painful side-effects, from urethritis to arthritis; he suffered from bouts of debilitating depression, which commentators have linked to several possible causes: cyclothymia, or bipolar disorder, or reaction to his mother's death. For the next twenty-five years following Guillaume Tell Rossini composed little, although Gossett comments that his comparatively few compositions from the 1830s and 1840s show no falling off in musical inspiration. They include the Soirées musicales (1830–1835: a set of twelve songs for solo or duet voices and piano) and his Stabat Mater (begun in 1831 and completed in 1841). After winning his fight with the government over his annuity in 1835 Rossini left Paris and settled in Bologna. His return to Paris in 1843 for medical treatment by Jean Civiale sparked hopes that he might produce a new grand opera – it was rumoured that Eugène Scribe was preparing a libretto for him about Joan of Arc. The Opéra was moved to present a French version of Otello in 1844 which also included material from some of the composer's earlier operas. It is unclear to what extent – if at all – Rossini was involved with this production, which was in the event poorly received. More controversial was the pasticcio opera of Robert Bruce (1846), in which Rossini, by then returned to Bologna, closely cooperated by selecting music from his past operas which had not yet been performed in Paris, notably La donna del lago. The Opéra sought to present Robert as a new Rossini opera. But although Othello could at least claim to be genuine, canonic Rossini, the historian Mark Everist notes that detractors argued that Robert was simply "fake goods, and from a bygone era at that"; he cites Théophile Gautier regretting that "the lack of unity could have been masked by a superior performance; unfortunately the tradition of Rossini's music was lost at the Opéra a long time ago." The period after 1835 saw Rossini's formal separation from his wife, who remained at Castenaso (1837), and the death of his father at the age of eighty (1839). In 1845 Colbran became seriously ill, and in September Rossini travelled to visit her; a month later she died. The following year Rossini and Pélissier were married in Bologna. The events of the Year of Revolution in 1848 led Rossini to move away from the Bologna area, where he felt threatened by insurrection, and to make Florence his base, which it remained until 1855. By the early 1850s Rossini's mental and physical health had deteriorated to the point where his wife and friends feared for his sanity or his life. By the middle of the decade, it was clear that he needed to return to Paris for the most advanced medical care then available. In April 1855 the Rossinis set off for their final journey from Italy to France. Rossini returned to Paris aged sixty-three and made it his home for the rest of his life. I offer these modest songs to my dear wife Olympe as a simple testimony of gratitude for the affectionate, intelligent care which she lavished on me during my overlong and terrible illness. Dedication of Musique anodine, 1857 Gossett observes that although an account of Rossini's life between 1830 and 1855 makes depressing reading, it is "no exaggeration to say that, in Paris, Rossini returned to life". He recovered his health and joie de vivre. Once settled in Paris he maintained two homes: a flat in the rue de la Chaussée-d'Antin, a smart central area, and a neo-classical villa built for him in Passy, a commune now absorbed into the city, but then semi-rural. He and his wife established a salon that became internationally famous. The first of their Saturday evening gatherings – the samedi soirs – was held in December 1858, and the last, two months before he died in 1868. Rossini began composing again. His music from his final decade was not generally intended for public performance, and he did not usually put dates of composition on the manuscripts. Consequently, musicologists have found it difficult to give definite dates for his late works, but the first, or among the first, was the song cycle Musique anodine, dedicated to his wife and presented to her in April 1857. For their weekly salons he produced more than 150 pieces, including songs, solo piano pieces, and chamber works for many different combinations of instruments. He referred to them as his Péchés de vieillesse – "sins of old age". The salons were held both at Beau Séjour – the Passy villa – and, in the winter, at the Paris flat. Such gatherings were a regular feature of Parisian life – the writer James Penrose has observed that the well-connected could easily attend different salons almost every night of the week – but the Rossinis' samedi soirs quickly became the most sought after: "an invitation was the city's highest social prize." The music, carefully chosen by Rossini, was not only his own but included works by Pergolesi, Haydn and Mozart and modern pieces by some of his guests. Among the composers who attended the salons, and sometimes performed, were Auber, Gounod, Liszt, Rubinstein, Meyerbeer, and Verdi. Rossini liked to call himself a fourth-class pianist, but the many famous pianists who attended the samedi soirs were dazzled by his playing. Violinists such as Pablo Sarasate and Joseph Joachim and the leading singers of the day were regular guests. In 1860, Wagner visited Rossini via an introduction from Rossini's friend Edmond Michotte who some forty-five years later wrote his account of the genial conversation between the two composers. One of Rossini's few late works intended to be given in public was his Petite messe solennelle, first performed in 1864. In the same year Rossini was made a grand officer of the Legion of Honour by Napoleon III. After a short illness, and an unsuccessful operation to treat colorectal cancer, Rossini died at Passy on 13 November 1868 at the age of seventy-six. He left Olympe a life interest in his estate, which after her death, ten years later, passed to the Commune of Pesaro for the establishment of a Liceo Musicale, and funded a home for retired opera singers in Paris. After a funeral service attended by more than four thousand people at the church of Sainte-Trinité, Paris, Rossini's body was interred at the Père Lachaise Cemetery. In 1887 his remains were moved to the basilica of Santa Croce, Florence. "Tous les genres sont bons, hors le genre ennuyeux". Rossini, in a letter of 1868 (citing Voltaire) The writer Julian Budden, noting the formulas adopted early on by Rossini in his career and consistently followed by him thereafter as regards overtures, arias, structures and ensembles, has called them "the Code Rossini" in a reference to the Code Napoléon, the legal system established by the French Emperor. Rossini's overall style may indeed have been influenced more directly by the French: the historian John Rosselli suggests that French rule in Italy at the start of the 19th century meant that "music had taken on new military qualities of attack, noise and speed – to be heard in Rossini." Rossini's approach to opera was inevitably tempered by changing tastes and audience demands. The formal "classicist" libretti of Metastasio which had underpinned late 18th century opera seria were replaced by subjects more to the taste of the age of Romanticism, with stories demanding stronger characterisation and quicker action; a jobbing composer needed to meet these demands or fail. Rossini's strategies met this reality. A formulaic approach was logistically indispensable for Rossini's career, at least at the start: in the seven years 1812–1819, he wrote 27 operas, often at extremely short notice. For La Cenerentola (1817), for example, he had just over three weeks to write the music before the première. Such pressures led to a further significant element of Rossini's compositional procedures, not included in Budden's "Code", namely, recycling. The composer often transferred a successful overture to subsequent operas: thus the overture to La pietra del paragone was later used for the opera seria Tancredi (1813), and (in the other direction) the overture to Aureliano in Palmira (1813) ended as (and is today known as) the overture to the comedy Il barbiere di Siviglia (The Barber of Seville). He also liberally re-employed arias and other sequences in later works. Spike Hughes notes that of the twenty-six numbers of Eduardo e Cristina, produced in Venice in 1817, nineteen were lifted from previous works. "The audience ... were remarkably good-humoured ... and asked slyly why the libretto had been changed since the last performance". Rossini expressed his disgust when the publisher Giovanni Ricordi issued a complete edition of his works in the 1850s: "The same pieces will be found several times, for I thought I had the right to remove from my fiascos those pieces which seemed best, to rescue them from shipwreck ... A fiasco seemed to be good and dead, and now look they've resuscitated them all!" Philip Gossett notes that Rossini "was from the outset a consummate composer of overtures". His basic formula for these remained constant throughout his career: Gossett characterises them as "sonata movements without development sections, usually preceded by a slow introduction" with "clear melodies, exuberant rhythms [and] simple harmonic structure" and a crescendo climax. Richard Taruskin also notes that the second theme is always announced in a woodwind solo, whose "catchiness" "etch[es] a distinct profile in the aural memory", and that the richness and inventiveness of his handling of the orchestra, even in these early works, marks the start of "[t]he great nineteenth-century flowering of orchestration." Rossini's handling of arias (and duets) in cavatina style marked a development from the eighteenth-century commonplace of recitative and aria. In the words of Rosselli, in Rossini's hands, "the aria became an engine for releasing emotion". Rossini's typical aria structure involved a lyrical introduction ("cantabile") and a more intensive, brilliant, conclusion ("cabaletta"). This model could be adapted in various ways so as to forward the plot (as opposed to the typical eighteenth-century handling which resulted in the action coming to a halt as the requisite repeats of the da capo aria were undertaken). For example, they could be punctuated by comments from other characters (a convention known as "pertichini"), or the chorus could intervene between the cantabile and the cabaletta so as to fire up the soloist. If such developments were not necessarily Rossini's own invention, he nevertheless made them his own by his expert handling of them. A landmark in this context is the cavatina "Di tanti palpiti" from Tancredi, which both Taruskin and Gossett (amongst others) single out as transformative, "the most famous aria Rossini ever wrote", with a "melody that seems to capture the melodic beauty and innocence characteristic of Italian opera." Both writers point out the typical Rossinian touch of avoiding an "expected" cadence in the aria by a sudden shift from the home key of F to that of A flat (see example); Taruskin notes the implicit pun, as the words talk of returning, but the music moves in a new direction. The influence was lasting; Gossett notes how the Rossinian cabaletta style continued to inform Italian opera as late as Giuseppe Verdi's Aida (1871). Such structural integration of the forms of vocal music with the dramatic development of the opera meant a sea-change from the Metastasian primacy of the aria; in Rossini's works, solo arias progressively take up a smaller proportion of the operas, in favour of duets (also typically in cantabile-caballetta format) and ensembles. During the late 18th century, creators of opera buffa had increasingly developed dramatic integration of the finales of each act. Finales began to "spread backwards", taking an ever larger proportion of the act, taking the structure of a musically continuous chain, accompanied throughout by orchestra, of a series of sections, each with its own characteristics of speed and style, mounting to a clamorous and vigorous final scene. In his comic operas Rossini brought this technique to its peak and extended its range far beyond his predecessors. Of the finale to the first act of L'italiana in Algeri, Taruskin writes that "[r]unning through almost a hundred pages of vocal score in record time, it is the most concentrated single dose of Rossini that there is." Of greater consequence for the history of opera was Rossini's ability to progress this technique in the genre of opera seria. Gossett in a very detailed analysis of the first-act finale of Tancredi identifies several elements in Rossini's practice. These include the contrast of "kinetic" action sequences, often characterised by orchestral motifs, with "static" expressions of emotion, the final "static" section in the form of a caballetta, with all the characters joining in the final cadences. Gossett claims that it is "from the time of Tancredi that the caballetta ... becomes the obligatory closing section of each musical unit in the operas of Rossini and his contemporaries." With extremely few exceptions, all Rossini's compositions before the Péchés de vieillesse of his retirement involve the human voice. His very first surviving work (apart from a single song) is however a set of string sonatas for two violins, cello and double-bass, written at the age of 12 when he had barely begun instruction in composition. Tuneful and engaging, they indicate how remote the talented child was from the influence of the advances in musical form evolved by Mozart, Haydn and Beethoven; the accent is on cantabile melody, colour, variation and virtuosity rather than transformational development. These qualities are also evident in Rossini's early operas, especially his farse (one-act farces), rather than his more formal opere serie. Gossett notes that these early works were written at a time when "[t]he deposited mantles of Cimarosa and Paisiello were unfilled" – these were Rossini's first, and increasingly appreciated, steps in trying them on. The Teatro San Moisè in Venice, where his farse was first performed, and the La Scala Theatre of Milan which premiered his two-act opera La pietra del paragone (1812), were seeking works in that tradition; Gossett notes that in these operas "Rossini's musical personality began to take shape ... many elements emerge that remain throughout his career" including "[a] love of sheer sound, of sharp and effective rhythms". The unusual effect employed in the overture of Il signor Bruschino, (1813) deploying violin bows tapping rhythms on music stands, is an example of such witty originality. The great success in Venice of the premieres of both Tancredi and the comic opera L'italiana in Algeri within a few weeks of each other (6 February 1813 and 22 May 1813 respectively) set the seal on Rossini's reputation as the rising opera composer of his generation. From the end of 1813 to mid-1814 he was in Milan creating two new operas for La Scala, Aureliano in Palmira and Il Turco in Italia. Arsace in Aureliano was sung by the castrato Giambattista Velluti; this was the last opera role Rossini wrote for a castrato singer as the norm became to use contralto voices – another sign of change in operatic taste. Rumour had it that Rossini was displeased by Velluti's ornamentation of his music; but in fact throughout his Italian period, up to Semiramide (1823), Rossini's written vocal lines become increasingly florid, and this is more appropriately credited to the composer's own changing style. Rossini's work in Naples contributed to this stylistic development. The city, which was the cradle of the operas of Cimarosa and Paisiello, had been slow to acknowledge the composer from Pesaro, but Domenico Barbaia invited him in 1815 on a seven-year contract to manage his theatres and compose operas. For the first time, Rossini was able to work over a long period with a company of musicians and singers, including amongst the latter Isabella Colbran, Andrea Nozzari, Giovanni David and others, who as Gossett notes "all specialized in florid singing" and "whose vocal talents left an indelible and not wholly positive mark on Rossini's style". Rossini's first operas for Naples, Elisabetta, regina d'Inghilterra and La gazzetta were both largely recycled from earlier works, but Otello (1816) is marked not only by its virtuoso vocal lines but by its masterfully integrated last act, with its drama underlined by melody, orchestration and tonal colour; here, in Gossett's opinion "Rossini came of age as a dramatic artist." He further comments: The growth of Rossini's style from Elisabetta, regina d'Inghilterra to Zelmira and, ultimately, Semiramide, is a direct consequence of th[e] continuity [he experienced in Naples]. Not only did Rossini compose some of his finest operas for Naples, but these operas profoundly affected operatic composition in Italy and made possible the developments that were to lead to Verdi. By now, Rossini's career was arousing interest across Europe. Others came to Italy to study the revival of Italian opera and used its lessons to advance themselves; amongst these was the Berlin-born Giacomo Meyerbeer who arrived in Italy in 1816, a year after Rossini's establishment at Naples, and lived and worked there until following him to Paris in 1825; he used one of Rossini's librettists, Gaetano Rossi, for five of his seven Italian operas, which were produced at Turin, Venice and Milan. In a letter to his brother of September 1818, he includes a detailed critique of Otello from the point of view of a non-Italian informed observer. He is scathing about the self-borrowings in the first two acts, but concedes that the third act "so firmly established Rossini's reputation in Venice that even a thousand follies could not rob him of it. But this act is divinely beautiful, and what is so strange is that [its] beauties ... are blatantly un-Rossinian: outstanding, even passionate recitatives, mysterious accompaniments, lots of local colour." Rossini's contract did not prevent him from undertaking other commissions, and before Otello, Il barbiere di Siviglia, a grand culmination of the opera buffa tradition, had been premiered in Rome (February 1816). Richard Osborne catalogues its excellencies: Beyond the physical impact of ... Figaro's "Largo al factotum", there is Rossini's ear for vocal and instrumental timbres of a peculiar astringency and brilliance, his quick-witted word-setting, and his mastery of large musical forms with their often brilliant and explosive internal variations. Add to that what Verdi called the opera's "abundance of true musical ideas", and the reasons for the work's longer-term emergence as Rossini's most popular opera buffa are not hard to find. Apart from La Cenerentola (Rome, 1817), and the "pen-and-ink sketch" farsa Adina (1818, not performed until 1826), Rossini's other works during his contract with Naples were all in the opera seria tradition. Amongst the most notable of these, all containing virtuoso singing roles, were Mosè in Egitto (1818), La donna del lago (1819), Maometto II (1820) all staged in Naples, and Semiramide, his last opera written for Italy, staged at La Fenice in Venice in 1823. The three versions of the opera semiseria Matilde di Shabran were written in 1821/1822. Both Mosè and Maometto II were later to undergo significant reconstruction in Paris (see below). Already in 1818, Meyerbeer had heard rumours that Rossini was seeking a lucrative appointment at the Paris Opéra – "Should [his proposals] be accepted, he will go to the French capital, and we will perhaps experience curious things." Some six years were to pass before this prophecy came true. In 1824 Rossini, under a contract with the French government, became director of the Théâtre-Italien in Paris, where he introduced Meyerbeer's opera Il crociato in Egitto, and for which he wrote Il viaggio a Reims to celebrate the coronation of Charles X (1825). This was his last opera to an Italian libretto, and was later cannibalised to create his first French opera, Le comte Ory (1828). A new contract in 1826 meant he could concentrate on productions at the Opéra and to this end he substantially revised Maometto II as Le siège de Corinthe (1826) and Mosé as Moïse et Pharaon (1827). Meeting French taste, the works are extended (each by one act), the vocal lines in the revisions are less florid and the dramatic structure is enhanced, with the proportion of arias reduced. One of the most striking additions was the chorus at the end of Act III of Moïse, with a crescendo repetition of a diatonic ascending bass line, rising first by a minor third, then by a major third, at each appearance, and a descending chromatic top line, which roused the excitement of audiences. Rossini's government contract required him to create at least one new "grand opėra", and Rossini settled on the story of William Tell, working closely with the librettist Étienne de Jouy. The story in particular enabled him to indulge "an underlying interest in the related genres of folk music, pastoral and the picturesque". This becomes clear from the overture, which is explicitly programmatic in describing weather, scenery and action, and presents a version of the ranz des vaches, the Swiss cowherd's call, which "undergoes a number of transformations during the opera" and gives it in Richard Osborne's opinion "something of the character of a leitmotif". In the opinion of the music historian Benjamin Walton, Rossini "saturate[s] the work with local colour to such a degree that there is room for little else." Thus, the role of the soloists is significantly reduced compared to other Rossini operas, the hero not even having an aria of his own, whilst the chorus of the Swiss people is consistently in the musical and dramatic foregrounds. Guillaume Tell premiered in August 1829. Rossini also provided for the Opéra a shorter, three-act version, which incorporated the pas redoublé (quick march) final section of the overture in its finale; it was first performed in 1831 and became the basis of the Opéra's future productions. Tell was very successful from the start and was frequently revived – in 1868 the composer was present at its 500th performance at the Opéra. The Globe had reported enthusiastically at its opening that "a new epoch has opened not only for French opera, but for dramatic music elsewhere". This was an era, it transpired, in which Rossini was not to participate. Rossini's contract required him to provide five new works for the Opéra over 10 years. After the première of Tell he was already considering some opera subjects, including Goethe's Faust, but the only significant works he completed before abandoning Paris in 1836 were the Stabat Mater, written for a private commission in 1831 (later completed and published in 1841), and the collection of salon vocal music Soirées musicales published in 1835. Living in Bologna, he occupied himself teaching singing at the Liceo Musicale, and also created a pasticcio of Tell, Rodolfo di Sterlinga, for the benefit of the singer Nicola Ivanoff [it], for which Giuseppe Verdi provided some new arias. Continuing demand in Paris resulted in the production of a "new" French version of Otello in 1844 (with which Rossini was not involved) and a "new" opera Robert Bruce for which Rossini cooperated with Louis Niedermeyer and others to recast music for La donna del lago and others of his works which were little-known in Paris to fit a new libretto. The success of both of these was qualified, to say the least. Not until Rossini returned to Paris in 1855 were there signs of a revival of his musical spirits. A stream of pieces, for voices, choir, piano, and chamber ensembles, written for his soirées, the Péchés de vieillesse (Sins of old age) were issued in thirteen volumes from 1857 to 1868; of these, volumes 4 to 8 comprise "56 semi-comical piano pieces .... dedicated to pianists of the fourth class, to which I have the honour of belonging." These include a mock funeral march, Marche et reminiscences pour mon dernier voyage (March and reminiscences for my last journey). Gossett writes of the Péchés "Their historical position remains to be assessed but it seems likely that their effect, direct or indirect, on composers like Camille Saint-Saëns and Erik Satie was significant." The most substantial work of Rossini's last decade, the Petite messe solennelle (1863), was written for small forces (originally voices, two pianos and harmonium), and therefore unsuited to concert hall performance; and as it included women's voices it was unacceptable for church performances at the time. For these reasons, Richard Osborne suggests, the piece has been somewhat overlooked among Rossini's compositions. It is neither especially petite (little) nor entirely solennelle (solemn), but is notable for its grace, counterpoint and melody. At the end of the manuscript, the composer wrote: Dear God, here it is finished, this poor little Mass. Is it sacred music I have written, or damned music? I was born for opera buffa, as you know well. A little technique, a little heart, that's all. Be blessed then, and grant me Paradise. The popularity of Rossini's melodies led many contemporary virtuosi to create piano transcriptions or fantasies based on them. Examples include Sigismond Thalberg's fantasy on themes from Moïse, the sets of variations on "Non più mesta" from La Cenerentola by Henri Herz, Frédéric Chopin, Franz Hünten, Anton Diabelli and Friedrich Burgmüller, and Liszt's transcriptions of the William Tell overture (1838) and the Soirées musicales. The continuing popularity of his comic operas (and the decline in staging his opere serie), the overthrow of the singing and staging styles of his period, and the emerging concept of the composer as a "creative artist" rather than a craftsman, diminished and distorted Rossini's place in music history even though the forms of Italian opera continued up to the period of verismo to be indebted to his innovations. Rossini's status amongst his contemporary Italian composers is indicated by the Messa per Rossini, a project initiated by Verdi within a few days of Rossini's death, which he and a dozen other composers created in collaboration. If Rossini's principal legacy to Italian opera was in vocal forms and dramatic structure for serious opera, his legacy to French opera was to provide a bridge from opera buffa to the development of opéra comique (and thence, via Jacques Offenbach's opéras bouffes to the genre of operetta). Opéras comiques showing a debt to Rossini's style include François-Adrien Boieldieu's La dame blanche (1825) and Daniel Auber's Fra Diavolo (1830), as well as works by Ferdinand Hérold, Adolphe Adam and Fromental Halévy. Critical of Rossini's style was Hector Berlioz, who wrote of his "melodic cynicism, his contempt for dramatic and good sense, his endless repetition of a single form of cadence, his eternal puerile crescendo and his brutal bass drum". It was perhaps inevitable that the formidable reputation which Rossini had built in his lifetime would fade thereafter. In 1886, less than twenty years after the composer's death, Bernard Shaw wrote: "The once universal Rossini, whose Semiramide appeared to our greener grandfathers a Ninevesque wonder, came at last to be no longer looked upon as a serious musician." In an 1877 review of Il barbiere, he noted that Adelina Patti sang as an encore in the lesson scene "Home, Sweet Home" but that "the opera proved so intolerably wearisome that some of her audience had already displayed their appreciation of the sentiment of the ballad in the most practical way." In the early 20th century Rossini received tributes from both Ottorino Respighi, who had orchestrated excerpts from the Péchés de viellesse both in his ballet la boutique fantasque (1918) and in his 1925 suite Rossiniana, and from Benjamin Britten, who adapted music by Rossini for two suites, Soirées musicales (Op. 9) in 1937 and Matinées musicales (Op. 24) in 1941. Richard Osborne singles out the three-volume biography of Rossini by Giuseppe Radiciotti (1927–1929) as an important turning point towards positive appreciation, which may also have been assisted by the trend of neoclassicism in music. A firm re-evaluation of Rossini's significance began only later in the 20th century in the light of study, and the creation of critical editions, of his works. A prime mover in these developments was the "Fondazione G. Rossini" which was created by the city of Pesaro in 1940 using the funds which had been left to the city by the composer. Since 1980 the "Fondazione" has supported the annual Rossini Opera Festival in Pesaro. In the 21st century, the Rossini repertoire of opera houses around the world remains dominated by Il barbiere, La Cenerentola being the second most popular. Several other operas are regularly produced, including Le comte Ory, La donna del lago, La gazza ladra, Guillaume Tell, L'italiana in Algeri, La scala di seta, Il turco in Italia and Il viaggio a Reims. Other Rossini pieces in the current international repertory, given from time to time, include Adina, Armida, Elisabetta regina d'Inghilterra, Ermione, Mosé in Egitto and Tancredi. The Rossini in Wildbad festival specialises in producing the rarer works. The Operabase performance-listing website records 2,319 performances of 532 productions of Rossini operas in 255 venues across the world in the three years 2017–2019. All of Rossini's operas have been recorded.
[ { "paragraph_id": 0, "text": "Gioachino Antonio Rossini (29 February 1792 – 13 November 1868) was an Italian composer who gained fame for his 39 operas, although he also wrote many songs, some chamber music and piano pieces, and some sacred music. He set new standards for both comic and serious opera before retiring from large-scale composition while still in his thirties, at the height of his popularity.", "title": "" }, { "paragraph_id": 1, "text": "Born in Pesaro to parents who were both musicians (his father a trumpeter, his mother a singer), Rossini began to compose by the age of twelve and was educated at music school in Bologna. His first opera was performed in Venice in 1810 when he was 18 years old. In 1815 he was engaged to write operas and manage theatres in Naples. In the period 1810–1823, he wrote 34 operas for the Italian stage that were performed in Venice, Milan, Ferrara, Naples and elsewhere; this productivity necessitated an almost formulaic approach for some components (such as overtures) and a certain amount of self-borrowing. During this period he produced his most popular works, including the comic operas L'italiana in Algeri, Il barbiere di Siviglia (known in English as The Barber of Seville) and La Cenerentola, which brought to a peak the opera buffa tradition he inherited from masters such as Domenico Cimarosa and Giovanni Paisiello. He also composed opera seria works such as Tancredi, Otello and Semiramide. All of these attracted admiration for their innovation in melody, harmonic and instrumental colour, and dramatic form. In 1824 he was contracted by the Opéra in Paris, for which he produced an opera to celebrate the coronation of Charles X, Il viaggio a Reims (later cannibalised for his first opera in French, Le comte Ory), revisions of two of his Italian operas, Le siège de Corinthe and Moïse, and in 1829 his last opera, Guillaume Tell.", "title": "" }, { "paragraph_id": 2, "text": "Rossini's withdrawal from opera for the last 40 years of his life has never been fully explained; contributory factors may have been ill-health, the wealth his success had brought him, and the rise of spectacular grand opera under composers such as Giacomo Meyerbeer. From the early 1830s to 1855, when he left Paris and was based in Bologna, Rossini wrote relatively little. On his return to Paris in 1855 he became renowned for his musical salons on Saturdays, regularly attended by musicians and the artistic and fashionable circles of Paris, for which he wrote the entertaining pieces Péchés de vieillesse. Guests included Franz Liszt, Anton Rubinstein, Giuseppe Verdi, Meyerbeer and Joseph Joachim. Rossini's last major composition was his Petite messe solennelle (1863). He died in Paris in 1868.", "title": "" }, { "paragraph_id": 3, "text": "Rossini was born in 1792 in Pesaro, a town on the Adriatic coast of Italy that was then part of the Papal States. He was the only child of Giuseppe Rossini, a trumpeter and horn player, and his wife Anna, née Guidarini, a seamstress by trade, daughter of a baker. Giuseppe Rossini was charming but impetuous and feckless; the burden of supporting the family and raising the child fell mainly on Anna, with some help from her mother and mother-in-law. Stendhal, who published a colourful biography of Rossini in 1824, wrote:", "title": "Life and career" }, { "paragraph_id": 4, "text": "Rossini's portion from his father, was the true native heirship of an Italian: a little music, a little religion, and a volume of Ariosto. The rest of his education was consigned to the legitimate school of southern youth, the society of his mother, the young singing girls of the company, those prima donnas in embryo, and the gossips of every village through which they passed. This was aided and refined by the musical barber and news-loving coffee-house keeper of the Papal village.", "title": "Life and career" }, { "paragraph_id": 5, "text": "Giuseppe was imprisoned at least twice: first in 1790 for insubordination to local authorities in a dispute about his employment as town trumpeter; and in 1799 and 1800 for republican activism and support of the troops of Napoleon against the Pope's Austrian backers. In 1798, when Rossini was aged six, his mother began a career as a professional singer in comic opera, and for a little over a decade was a considerable success in cities including Trieste and Bologna, before her untrained voice began to fail.", "title": "Life and career" }, { "paragraph_id": 6, "text": "In 1802 the family moved to Lugo, near Ravenna, where Rossini received a good basic education in Italian, Latin and arithmetic as well as music. He studied the horn with his father and other music with a priest, Giuseppe Malerbe, whose extensive library contained works by Haydn and Mozart, both little known in Italy at the time, but inspirational to the young Rossini. He was a quick learner, and by the age of twelve, he had composed a set of six sonatas for four stringed instruments, which were performed under the aegis of a rich patron in 1804. Two years later he was admitted to the recently opened Liceo Musicale, Bologna, initially studying singing, cello and piano, and joining the composition class soon afterwards. He wrote some substantial works while a student, including a mass and a cantata, and after two years he was invited to continue his studies. He declined the offer: the strict academic regime of the Liceo had given him a solid compositional technique, but as his biographer Richard Osborne puts it, \"his instinct to continue his education in the real world finally asserted itself\".", "title": "Life and career" }, { "paragraph_id": 7, "text": "While still at the Liceo, Rossini had performed in public as a singer and worked in theatres as a répétiteur and keyboard soloist. In 1810 at the request of the popular tenor Domenico Mombelli he wrote his first operatic score, a two-act operatic dramma serio, Demetrio e Polibio, to a libretto by Mombelli's wife. It was publicly staged in 1812, after the composer's first successes. Rossini and his parents concluded that his future lay in composing operas. The main operatic centre in northeastern Italy was Venice; under the tutelage of the composer Giovanni Morandi, a family friend, Rossini moved there in late 1810, when he was eighteen.", "title": "Life and career" }, { "paragraph_id": 8, "text": "Rossini's first opera to be staged was La cambiale di matrimonio, a one-act comedy, given at the small Teatro San Moisè in November 1810. The piece was a great success, and Rossini received what then seemed to him a considerable sum: \"forty scudi – an amount I had never seen brought together\". He later described the San Moisè as an ideal theatre for a young composer learning his craft – \"everything tended to facilitate the début of a novice composer\": it had no chorus, and a small company of principals; its main repertoire consisted of one-act comic operas (farse), staged with modest scenery and minimal rehearsal. Rossini followed the success of his first piece with three more farse for the house: L'inganno felice (1812), La scala di seta (1812), and Il signor Bruschino (1813).", "title": "Life and career" }, { "paragraph_id": 9, "text": "Rossini maintained his links with Bologna, where in 1811 he had a success directing Haydn's The Seasons, and a failure with his first full-length opera, L'equivoco stravagante. He also worked for opera houses in Ferrara and Rome. In mid-1812 he received a commission from La Scala, Milan, where his two-act comedy La pietra del paragone ran for fifty-three performances, a considerable run for the time, which brought him not only financial benefits, but exemption from military service and the title of maestro di cartello – a composer whose name on advertising posters guaranteed a full house. The following year his first opera seria, Tancredi, did well at La Fenice in Venice, and even better at Ferrara, with a rewritten, tragic ending. The success of Tancredi made Rossini's name known internationally; productions of the opera followed in London (1820) and New York (1825). Within weeks of Tancredi, Rossini had another box-office success with his comedy L'italiana in Algeri, composed in great haste and premiered in May 1813.", "title": "Life and career" }, { "paragraph_id": 10, "text": "1814 was a less remarkable year for the rising composer, neither Il turco in Italia or Sigismondo pleasing the Milanese or Venetian public, respectively. 1815 marked an important stage in Rossini's career. In May he moved to Naples, to take up the post of director of music for the royal theatres. These included the Teatro di San Carlo, the city's leading opera house; its manager Domenico Barbaia was to be an important influence on the composer's career there.", "title": "Life and career" }, { "paragraph_id": 11, "text": "The musical establishment of Naples was not immediately welcoming to Rossini, who was seen as an intruder into its cherished operatic traditions. The city had once been the operatic capital of Europe; the memory of Cimarosa was revered and Paisiello was still living, but there were no local composers of any stature to follow them, and Rossini quickly won the public and critics round. Rossini's first work for the San Carlo, Elisabetta, regina d'Inghilterra was a dramma per musica in two acts, in which he reused substantial sections of his earlier works, unfamiliar to the local public. The Rossini scholars Philip Gossett and Patricia Brauner write, \"It is as if Rossini wished to present himself to the Neapolitan public by offering a selection of the best music from operas unlikely to be revived in Naples.\" The new opera was received with tremendous enthusiasm, as was the Neapolitan premiere of L'italiana in Algeri, and Rossini's position in Naples was assured.", "title": "Life and career" }, { "paragraph_id": 12, "text": "For the first time, Rossini was able to write regularly for a resident company of first-rate singers and a fine orchestra, with adequate rehearsals, and schedules that made it unnecessary to compose in a rush to meet deadlines. Between 1815 and 1822 he composed eighteen more operas: nine for Naples and nine for opera houses in other cities. In 1816, for the Teatro Argentina in Rome, he composed the opera that was to become his best-known: Il barbiere di Siviglia (The Barber of Seville). There was already a popular opera of that title by Paisiello, and Rossini's version was originally given the same title as its hero, Almaviva. Despite an unsuccessful opening night, with mishaps on stage and many pro-Paisiello and anti-Rossini audience members, the opera quickly became a success, and by the time of its first revival, in Bologna a few months later, it was billed by its present Italian title and it rapidly eclipsed Paisiello's setting.", "title": "Life and career" }, { "paragraph_id": 13, "text": "Rossini's operas for the Teatro San Carlo were substantial, mainly serious pieces. His Otello (1816) provoked Lord Byron to write, \"They have been crucifying Othello into an opera: music good, but lugubrious – but as for the words!\" Nonetheless the piece proved generally popular and held the stage in frequent revivals until it was overshadowed by Verdi's version, seven decades later. Among his other works for the house were Mosè in Egitto, based on the biblical story of Moses and the Exodus from Egypt (1818), and La donna del lago, from Sir Walter Scott's poem The Lady of the Lake (1819). For La Scala he wrote the opera semiseria La gazza ladra (1817), and for Rome his version of the Cinderella story, La Cenerentola (1817). In 1817 came the first performance of one of his operas (L'Italiana) at the Theâtre-Italien in Paris; its success led to others of his operas being staged there, and eventually to his contract in Paris from 1824 to 1830.", "title": "Life and career" }, { "paragraph_id": 14, "text": "Rossini kept his personal life as private as possible, but he was known for his susceptibility to singers in the companies he worked with. Among his lovers in his early years were Ester Mombelli (Domenico's daughter) and Maria Marcolini of the Bologna company. By far the most important of these relationships – both personal and professional – was with Isabella Colbran, prima donna of the Teatro San Carlo (and former mistress of Barbaia). Rossini had heard her sing in Bologna in 1807, and when he moved to Naples he wrote a succession of important roles for her in opere serie.", "title": "Life and career" }, { "paragraph_id": 15, "text": "By the early 1820s, Rossini was beginning to tire of Naples. The failure of his operatic tragedy Ermione the previous year convinced him that he and the Neapolitan audiences had had enough of each other. An insurrection in Naples against the monarchy, though quickly crushed, unsettled Rossini; when Barbaia signed a contract to take the company to Vienna, Rossini was glad to join them, but did not reveal to Barbaia that he had no intention of returning to Naples afterwards. He travelled with Colbran, in March 1822, breaking their journey at Bologna, where they were married in the presence of his parents in a small church in Castenaso a few miles from the city. The bride was thirty-seven, the groom thirty.", "title": "Life and career" }, { "paragraph_id": 16, "text": "In Vienna, Rossini received a hero's welcome; his biographers describe it as \"unprecedentedly feverish enthusiasm\", \"Rossini fever\", and \"near hysteria\". The authoritarian chancellor of the Austrian Empire, Metternich, liked Rossini's music, and thought it free of all potential revolutionary or republican associations. He was therefore happy to permit the San Carlo company to perform the composer's operas. In a three-month season they played six of them, to audiences so enthusiastic that Beethoven's assistant, Anton Schindler, described it as \"an idolatrous orgy\".", "title": "Life and career" }, { "paragraph_id": 17, "text": "While in Vienna Rossini heard Beethoven's Eroica symphony, and was so moved that he determined to meet the reclusive composer. He finally managed to do so, and later described the encounter to many people, including Eduard Hanslick and Richard Wagner. He recalled that although conversation was hampered by Beethoven's deafness and Rossini's ignorance of German, Beethoven made it plain that he thought Rossini's talents were not for serious opera, and that \"above all\" he should \"do more Barbiere\" (Barbers).", "title": "Life and career" }, { "paragraph_id": 18, "text": "After the Vienna season Rossini returned to Castenaso to work with his librettist, Gaetano Rossi, on Semiramide, commissioned by La Fenice. It was premiered in February 1823, his last work for the Italian theatre. Colbran starred, but it was clear to everyone that her voice was in serious decline, and Semiramide ended her career in Italy. The work survived that one major disadvantage, and entered the international operatic repertory, remaining popular throughout the 19th century; in Richard Osborne's words, it brought \"[Rossini's] Italian career to a spectacular close.\"", "title": "Life and career" }, { "paragraph_id": 19, "text": "In November 1823 Rossini and Colbran set off for London, where a lucrative contract had been offered. They stopped for four weeks en route in Paris. Although he was not as feverishly acclaimed by the Parisians as he had been in Vienna, he nevertheless had an exceptionally welcoming reception from the musical establishment and the public. When he attended a performance of Il barbiere at the Théâtre-Italien he was applauded, dragged onto the stage, and serenaded by the musicians. A banquet was given for him and his wife, attended by leading French composers and artists, and he found the cultural climate of Paris congenial.", "title": "Life and career" }, { "paragraph_id": 20, "text": "At the end of the year Rossini arrived in London, where he was received and made much of by the king, George IV, although the composer was by now unimpressed by royalty and aristocracy. Rossini and Colbran had signed contracts for an opera season at the King's Theatre in the Haymarket. Her vocal shortcomings were a serious liability, and she reluctantly retired from performing. Public opinion was not improved by Rossini's failure to provide a new opera, as promised. The impresario, Vincenzo Benelli, defaulted on his contract with the composer, but this was not known to the London press and public, who blamed Rossini.", "title": "Life and career" }, { "paragraph_id": 21, "text": "In a 2003 biography of the composer, Gaia Servadio comments that Rossini and England were not made for each other. He was prostrated by the Channel crossing and was unlikely to be enthused by the English weather or English cooking. Although his stay in London was financially rewarding – the British press reported disapprovingly that he had earned over £30,000 – he was happy to sign a contract at the French embassy in London to return to Paris, where he had felt much more at home.", "title": "Life and career" }, { "paragraph_id": 22, "text": "Rossini's new, and highly remunerative, contract with the French government was negotiated under Louis XVIII, who died in September 1824, soon after Rossini's arrival in Paris. It had been agreed that the composer would produce one grand opera for the Académie Royale de Musique and either an opera buffa or an opera semiseria for the Théâtre-Italien. He was also to help run the latter theatre and revise one of his earlier works for revival there. The death of the king and the accession of Charles X changed Rossini's plans, and his first new work for Paris was Il viaggio a Reims, an operatic entertainment given in June 1825 to celebrate Charles's coronation. It was Rossini's last opera with an Italian libretto. He permitted only four performances of the piece, intending to reuse the best of the music in a less ephemeral opera. About half the score of Le comte Ory (1828) is from the earlier work.", "title": "Life and career" }, { "paragraph_id": 23, "text": "Colbran's enforced retirement put a strain on the Rossinis' marriage, leaving her unoccupied while he continued to be the centre of musical attention and constantly in demand. She consoled herself with what Servadio describes as \"a new pleasure in shopping\"; for Rossini, Paris offered continual gourmet delights, as his increasingly rotund shape began to reflect.", "title": "Life and career" }, { "paragraph_id": 24, "text": "The first of the four operas Rossini wrote to French librettos were Le siège de Corinthe (1826) and Moïse et Pharaon (1827). Both were substantial reworkings of pieces written for Naples: Maometto II and Mosè in Egitto. Rossini took great care before beginning work on the first, learning to speak French and familiarising himself with traditional French operatic ways of declaiming the language. As well as dropping some of the original music that was in an ornate style unfashionable in Paris, Rossini accommodated local preferences by adding dances, hymn-like numbers and a greater role for the chorus.", "title": "Life and career" }, { "paragraph_id": 25, "text": "Rossini's mother, Anna, died in 1827; he had been devoted to her, and he felt her loss deeply. She and Colbran had never got on well, and Servadio suggests that after Anna died Rossini came to resent the surviving woman in his life.", "title": "Life and career" }, { "paragraph_id": 26, "text": "In 1828 Rossini wrote Le comte Ory, his only French-language comic opera. His determination to reuse music from Il viaggio a Reims caused problems for his librettists, who had to adapt their original plot and write French words to fit existing Italian numbers, but the opera was a success, and was seen in London within six months of the Paris premiere, and in New York in 1831. The following year Rossini wrote his long-awaited French grand opera, Guillaume Tell, based on Friedrich Schiller's 1804 play which drew on the William Tell legend.", "title": "Life and career" }, { "paragraph_id": 27, "text": "Guillaume Tell was well received. The orchestra and singers gathered outside Rossini's house after the premiere and performed the rousing finale to the second act in his honour. The newspaper Le Globe commented that a new era of music had begun. Gaetano Donizetti remarked that the first and last acts of the opera were written by Rossini, but the middle act was written by God. The work was an undoubted success, without being a smash hit; the public took some time in getting to grips with it, and some singers found it too demanding. It nonetheless was produced abroad within months of the premiere, and there was no suspicion that it would be the composer's last opera.", "title": "Life and career" }, { "paragraph_id": 28, "text": "Jointly with Semiramide, Guillaume Tell is Rossini's longest opera, at three hours and forty-five minutes, and the effort of composing it left him exhausted. Although within a year he was planning an operatic treatment of the Faust story, events and ill health overtook him. After the opening of Guillaume Tell the Rossinis had left Paris and were staying in Castenaso. Within a year events in Paris had Rossini hurrying back. Charles X was overthrown in a revolution in July 1830, and the new administration, headed by Louis Philippe I, announced radical cutbacks in government spending. Among the cuts was Rossini's lifetime annuity, won after hard negotiation with the previous regime. Attempting to restore the annuity was one of Rossini's reasons for returning. The other was to be with his new mistress, Olympe Pélissier. He left Colbran in Castenaso; she never returned to Paris and they never lived together again.", "title": "Life and career" }, { "paragraph_id": 29, "text": "The reasons for Rossini's withdrawal from opera have been continually discussed during and since his lifetime. Some have supposed that aged thirty-seven and in variable health, having negotiated a sizeable annuity from the French government, and having written thirty-nine operas, he simply planned to retire and kept to that plan. In a 1934 study of the composer, the critic Francis Toye coined the phrase \"The Great Renunciation\", and called Rossini's retirement a \"phenomenon unique in the history of music and difficult to parallel in the whole history of art\":", "title": "Life and career" }, { "paragraph_id": 30, "text": "Is there any other artist who thus deliberately, in the very prime of life, renounced that form of artistic production which had made him famous throughout the civilized world?", "title": "Life and career" }, { "paragraph_id": 31, "text": "The poet Heine compared Rossini's retirement with Shakespeare's withdrawal from writing: two geniuses recognising when they had accomplished the unsurpassable and not seeking to follow it. Others, then and later, suggested that Rossini had retired because of pique at the successes of Giacomo Meyerbeer and Fromental Halévy in the genre of grand opéra. Modern Rossini scholarship has generally discounted such theories, maintaining that Rossini had no intention of renouncing operatic composition, and that circumstances rather than personal choice made Guillaume Tell his last opera. Gossett and Richard Osborne suggest that illness may have been a major factor in Rossini's retirement. From about this time, Rossini had intermittent bad health, both physical and mental. He had contracted gonorrhoea in earlier years, which later led to painful side-effects, from urethritis to arthritis; he suffered from bouts of debilitating depression, which commentators have linked to several possible causes: cyclothymia, or bipolar disorder, or reaction to his mother's death.", "title": "Life and career" }, { "paragraph_id": 32, "text": "For the next twenty-five years following Guillaume Tell Rossini composed little, although Gossett comments that his comparatively few compositions from the 1830s and 1840s show no falling off in musical inspiration. They include the Soirées musicales (1830–1835: a set of twelve songs for solo or duet voices and piano) and his Stabat Mater (begun in 1831 and completed in 1841). After winning his fight with the government over his annuity in 1835 Rossini left Paris and settled in Bologna. His return to Paris in 1843 for medical treatment by Jean Civiale sparked hopes that he might produce a new grand opera – it was rumoured that Eugène Scribe was preparing a libretto for him about Joan of Arc. The Opéra was moved to present a French version of Otello in 1844 which also included material from some of the composer's earlier operas. It is unclear to what extent – if at all – Rossini was involved with this production, which was in the event poorly received. More controversial was the pasticcio opera of Robert Bruce (1846), in which Rossini, by then returned to Bologna, closely cooperated by selecting music from his past operas which had not yet been performed in Paris, notably La donna del lago. The Opéra sought to present Robert as a new Rossini opera. But although Othello could at least claim to be genuine, canonic Rossini, the historian Mark Everist notes that detractors argued that Robert was simply \"fake goods, and from a bygone era at that\"; he cites Théophile Gautier regretting that \"the lack of unity could have been masked by a superior performance; unfortunately the tradition of Rossini's music was lost at the Opéra a long time ago.\"", "title": "Life and career" }, { "paragraph_id": 33, "text": "The period after 1835 saw Rossini's formal separation from his wife, who remained at Castenaso (1837), and the death of his father at the age of eighty (1839). In 1845 Colbran became seriously ill, and in September Rossini travelled to visit her; a month later she died. The following year Rossini and Pélissier were married in Bologna. The events of the Year of Revolution in 1848 led Rossini to move away from the Bologna area, where he felt threatened by insurrection, and to make Florence his base, which it remained until 1855.", "title": "Life and career" }, { "paragraph_id": 34, "text": "By the early 1850s Rossini's mental and physical health had deteriorated to the point where his wife and friends feared for his sanity or his life. By the middle of the decade, it was clear that he needed to return to Paris for the most advanced medical care then available. In April 1855 the Rossinis set off for their final journey from Italy to France. Rossini returned to Paris aged sixty-three and made it his home for the rest of his life.", "title": "Life and career" }, { "paragraph_id": 35, "text": "I offer these modest songs to my dear wife Olympe as a simple testimony of gratitude for the affectionate, intelligent care which she lavished on me during my overlong and terrible illness.", "title": "Life and career" }, { "paragraph_id": 36, "text": "Dedication of Musique anodine, 1857", "title": "Life and career" }, { "paragraph_id": 37, "text": "Gossett observes that although an account of Rossini's life between 1830 and 1855 makes depressing reading, it is \"no exaggeration to say that, in Paris, Rossini returned to life\". He recovered his health and joie de vivre. Once settled in Paris he maintained two homes: a flat in the rue de la Chaussée-d'Antin, a smart central area, and a neo-classical villa built for him in Passy, a commune now absorbed into the city, but then semi-rural. He and his wife established a salon that became internationally famous. The first of their Saturday evening gatherings – the samedi soirs – was held in December 1858, and the last, two months before he died in 1868.", "title": "Life and career" }, { "paragraph_id": 38, "text": "Rossini began composing again. His music from his final decade was not generally intended for public performance, and he did not usually put dates of composition on the manuscripts. Consequently, musicologists have found it difficult to give definite dates for his late works, but the first, or among the first, was the song cycle Musique anodine, dedicated to his wife and presented to her in April 1857. For their weekly salons he produced more than 150 pieces, including songs, solo piano pieces, and chamber works for many different combinations of instruments. He referred to them as his Péchés de vieillesse – \"sins of old age\". The salons were held both at Beau Séjour – the Passy villa – and, in the winter, at the Paris flat. Such gatherings were a regular feature of Parisian life – the writer James Penrose has observed that the well-connected could easily attend different salons almost every night of the week – but the Rossinis' samedi soirs quickly became the most sought after: \"an invitation was the city's highest social prize.\" The music, carefully chosen by Rossini, was not only his own but included works by Pergolesi, Haydn and Mozart and modern pieces by some of his guests. Among the composers who attended the salons, and sometimes performed, were Auber, Gounod, Liszt, Rubinstein, Meyerbeer, and Verdi. Rossini liked to call himself a fourth-class pianist, but the many famous pianists who attended the samedi soirs were dazzled by his playing. Violinists such as Pablo Sarasate and Joseph Joachim and the leading singers of the day were regular guests. In 1860, Wagner visited Rossini via an introduction from Rossini's friend Edmond Michotte who some forty-five years later wrote his account of the genial conversation between the two composers.", "title": "Life and career" }, { "paragraph_id": 39, "text": "One of Rossini's few late works intended to be given in public was his Petite messe solennelle, first performed in 1864. In the same year Rossini was made a grand officer of the Legion of Honour by Napoleon III.", "title": "Life and career" }, { "paragraph_id": 40, "text": "After a short illness, and an unsuccessful operation to treat colorectal cancer, Rossini died at Passy on 13 November 1868 at the age of seventy-six. He left Olympe a life interest in his estate, which after her death, ten years later, passed to the Commune of Pesaro for the establishment of a Liceo Musicale, and funded a home for retired opera singers in Paris. After a funeral service attended by more than four thousand people at the church of Sainte-Trinité, Paris, Rossini's body was interred at the Père Lachaise Cemetery. In 1887 his remains were moved to the basilica of Santa Croce, Florence.", "title": "Life and career" }, { "paragraph_id": 41, "text": "\"Tous les genres sont bons, hors le genre ennuyeux\".", "title": "Music" }, { "paragraph_id": 42, "text": "Rossini, in a letter of 1868 (citing Voltaire)", "title": "Music" }, { "paragraph_id": 43, "text": "The writer Julian Budden, noting the formulas adopted early on by Rossini in his career and consistently followed by him thereafter as regards overtures, arias, structures and ensembles, has called them \"the Code Rossini\" in a reference to the Code Napoléon, the legal system established by the French Emperor. Rossini's overall style may indeed have been influenced more directly by the French: the historian John Rosselli suggests that French rule in Italy at the start of the 19th century meant that \"music had taken on new military qualities of attack, noise and speed – to be heard in Rossini.\" Rossini's approach to opera was inevitably tempered by changing tastes and audience demands. The formal \"classicist\" libretti of Metastasio which had underpinned late 18th century opera seria were replaced by subjects more to the taste of the age of Romanticism, with stories demanding stronger characterisation and quicker action; a jobbing composer needed to meet these demands or fail. Rossini's strategies met this reality. A formulaic approach was logistically indispensable for Rossini's career, at least at the start: in the seven years 1812–1819, he wrote 27 operas, often at extremely short notice. For La Cenerentola (1817), for example, he had just over three weeks to write the music before the première.", "title": "Music" }, { "paragraph_id": 44, "text": "Such pressures led to a further significant element of Rossini's compositional procedures, not included in Budden's \"Code\", namely, recycling. The composer often transferred a successful overture to subsequent operas: thus the overture to La pietra del paragone was later used for the opera seria Tancredi (1813), and (in the other direction) the overture to Aureliano in Palmira (1813) ended as (and is today known as) the overture to the comedy Il barbiere di Siviglia (The Barber of Seville). He also liberally re-employed arias and other sequences in later works. Spike Hughes notes that of the twenty-six numbers of Eduardo e Cristina, produced in Venice in 1817, nineteen were lifted from previous works. \"The audience ... were remarkably good-humoured ... and asked slyly why the libretto had been changed since the last performance\". Rossini expressed his disgust when the publisher Giovanni Ricordi issued a complete edition of his works in the 1850s: \"The same pieces will be found several times, for I thought I had the right to remove from my fiascos those pieces which seemed best, to rescue them from shipwreck ... A fiasco seemed to be good and dead, and now look they've resuscitated them all!\"", "title": "Music" }, { "paragraph_id": 45, "text": "Philip Gossett notes that Rossini \"was from the outset a consummate composer of overtures\". His basic formula for these remained constant throughout his career: Gossett characterises them as \"sonata movements without development sections, usually preceded by a slow introduction\" with \"clear melodies, exuberant rhythms [and] simple harmonic structure\" and a crescendo climax. Richard Taruskin also notes that the second theme is always announced in a woodwind solo, whose \"catchiness\" \"etch[es] a distinct profile in the aural memory\", and that the richness and inventiveness of his handling of the orchestra, even in these early works, marks the start of \"[t]he great nineteenth-century flowering of orchestration.\"", "title": "Music" }, { "paragraph_id": 46, "text": "Rossini's handling of arias (and duets) in cavatina style marked a development from the eighteenth-century commonplace of recitative and aria. In the words of Rosselli, in Rossini's hands, \"the aria became an engine for releasing emotion\". Rossini's typical aria structure involved a lyrical introduction (\"cantabile\") and a more intensive, brilliant, conclusion (\"cabaletta\"). This model could be adapted in various ways so as to forward the plot (as opposed to the typical eighteenth-century handling which resulted in the action coming to a halt as the requisite repeats of the da capo aria were undertaken). For example, they could be punctuated by comments from other characters (a convention known as \"pertichini\"), or the chorus could intervene between the cantabile and the cabaletta so as to fire up the soloist. If such developments were not necessarily Rossini's own invention, he nevertheless made them his own by his expert handling of them. A landmark in this context is the cavatina \"Di tanti palpiti\" from Tancredi, which both Taruskin and Gossett (amongst others) single out as transformative, \"the most famous aria Rossini ever wrote\", with a \"melody that seems to capture the melodic beauty and innocence characteristic of Italian opera.\" Both writers point out the typical Rossinian touch of avoiding an \"expected\" cadence in the aria by a sudden shift from the home key of F to that of A flat (see example); Taruskin notes the implicit pun, as the words talk of returning, but the music moves in a new direction. The influence was lasting; Gossett notes how the Rossinian cabaletta style continued to inform Italian opera as late as Giuseppe Verdi's Aida (1871).", "title": "Music" }, { "paragraph_id": 47, "text": "Such structural integration of the forms of vocal music with the dramatic development of the opera meant a sea-change from the Metastasian primacy of the aria; in Rossini's works, solo arias progressively take up a smaller proportion of the operas, in favour of duets (also typically in cantabile-caballetta format) and ensembles.", "title": "Music" }, { "paragraph_id": 48, "text": "During the late 18th century, creators of opera buffa had increasingly developed dramatic integration of the finales of each act. Finales began to \"spread backwards\", taking an ever larger proportion of the act, taking the structure of a musically continuous chain, accompanied throughout by orchestra, of a series of sections, each with its own characteristics of speed and style, mounting to a clamorous and vigorous final scene. In his comic operas Rossini brought this technique to its peak and extended its range far beyond his predecessors. Of the finale to the first act of L'italiana in Algeri, Taruskin writes that \"[r]unning through almost a hundred pages of vocal score in record time, it is the most concentrated single dose of Rossini that there is.\"", "title": "Music" }, { "paragraph_id": 49, "text": "Of greater consequence for the history of opera was Rossini's ability to progress this technique in the genre of opera seria. Gossett in a very detailed analysis of the first-act finale of Tancredi identifies several elements in Rossini's practice. These include the contrast of \"kinetic\" action sequences, often characterised by orchestral motifs, with \"static\" expressions of emotion, the final \"static\" section in the form of a caballetta, with all the characters joining in the final cadences. Gossett claims that it is \"from the time of Tancredi that the caballetta ... becomes the obligatory closing section of each musical unit in the operas of Rossini and his contemporaries.\"", "title": "Music" }, { "paragraph_id": 50, "text": "With extremely few exceptions, all Rossini's compositions before the Péchés de vieillesse of his retirement involve the human voice. His very first surviving work (apart from a single song) is however a set of string sonatas for two violins, cello and double-bass, written at the age of 12 when he had barely begun instruction in composition. Tuneful and engaging, they indicate how remote the talented child was from the influence of the advances in musical form evolved by Mozart, Haydn and Beethoven; the accent is on cantabile melody, colour, variation and virtuosity rather than transformational development. These qualities are also evident in Rossini's early operas, especially his farse (one-act farces), rather than his more formal opere serie. Gossett notes that these early works were written at a time when \"[t]he deposited mantles of Cimarosa and Paisiello were unfilled\" – these were Rossini's first, and increasingly appreciated, steps in trying them on. The Teatro San Moisè in Venice, where his farse was first performed, and the La Scala Theatre of Milan which premiered his two-act opera La pietra del paragone (1812), were seeking works in that tradition; Gossett notes that in these operas \"Rossini's musical personality began to take shape ... many elements emerge that remain throughout his career\" including \"[a] love of sheer sound, of sharp and effective rhythms\". The unusual effect employed in the overture of Il signor Bruschino, (1813) deploying violin bows tapping rhythms on music stands, is an example of such witty originality.", "title": "Music" }, { "paragraph_id": 51, "text": "The great success in Venice of the premieres of both Tancredi and the comic opera L'italiana in Algeri within a few weeks of each other (6 February 1813 and 22 May 1813 respectively) set the seal on Rossini's reputation as the rising opera composer of his generation. From the end of 1813 to mid-1814 he was in Milan creating two new operas for La Scala, Aureliano in Palmira and Il Turco in Italia. Arsace in Aureliano was sung by the castrato Giambattista Velluti; this was the last opera role Rossini wrote for a castrato singer as the norm became to use contralto voices – another sign of change in operatic taste. Rumour had it that Rossini was displeased by Velluti's ornamentation of his music; but in fact throughout his Italian period, up to Semiramide (1823), Rossini's written vocal lines become increasingly florid, and this is more appropriately credited to the composer's own changing style.", "title": "Music" }, { "paragraph_id": 52, "text": "Rossini's work in Naples contributed to this stylistic development. The city, which was the cradle of the operas of Cimarosa and Paisiello, had been slow to acknowledge the composer from Pesaro, but Domenico Barbaia invited him in 1815 on a seven-year contract to manage his theatres and compose operas. For the first time, Rossini was able to work over a long period with a company of musicians and singers, including amongst the latter Isabella Colbran, Andrea Nozzari, Giovanni David and others, who as Gossett notes \"all specialized in florid singing\" and \"whose vocal talents left an indelible and not wholly positive mark on Rossini's style\". Rossini's first operas for Naples, Elisabetta, regina d'Inghilterra and La gazzetta were both largely recycled from earlier works, but Otello (1816) is marked not only by its virtuoso vocal lines but by its masterfully integrated last act, with its drama underlined by melody, orchestration and tonal colour; here, in Gossett's opinion \"Rossini came of age as a dramatic artist.\" He further comments:", "title": "Music" }, { "paragraph_id": 53, "text": "The growth of Rossini's style from Elisabetta, regina d'Inghilterra to Zelmira and, ultimately, Semiramide, is a direct consequence of th[e] continuity [he experienced in Naples]. Not only did Rossini compose some of his finest operas for Naples, but these operas profoundly affected operatic composition in Italy and made possible the developments that were to lead to Verdi.", "title": "Music" }, { "paragraph_id": 54, "text": "By now, Rossini's career was arousing interest across Europe. Others came to Italy to study the revival of Italian opera and used its lessons to advance themselves; amongst these was the Berlin-born Giacomo Meyerbeer who arrived in Italy in 1816, a year after Rossini's establishment at Naples, and lived and worked there until following him to Paris in 1825; he used one of Rossini's librettists, Gaetano Rossi, for five of his seven Italian operas, which were produced at Turin, Venice and Milan. In a letter to his brother of September 1818, he includes a detailed critique of Otello from the point of view of a non-Italian informed observer. He is scathing about the self-borrowings in the first two acts, but concedes that the third act \"so firmly established Rossini's reputation in Venice that even a thousand follies could not rob him of it. But this act is divinely beautiful, and what is so strange is that [its] beauties ... are blatantly un-Rossinian: outstanding, even passionate recitatives, mysterious accompaniments, lots of local colour.\" Rossini's contract did not prevent him from undertaking other commissions, and before Otello, Il barbiere di Siviglia, a grand culmination of the opera buffa tradition, had been premiered in Rome (February 1816). Richard Osborne catalogues its excellencies:", "title": "Music" }, { "paragraph_id": 55, "text": "Beyond the physical impact of ... Figaro's \"Largo al factotum\", there is Rossini's ear for vocal and instrumental timbres of a peculiar astringency and brilliance, his quick-witted word-setting, and his mastery of large musical forms with their often brilliant and explosive internal variations. Add to that what Verdi called the opera's \"abundance of true musical ideas\", and the reasons for the work's longer-term emergence as Rossini's most popular opera buffa are not hard to find.", "title": "Music" }, { "paragraph_id": 56, "text": "Apart from La Cenerentola (Rome, 1817), and the \"pen-and-ink sketch\" farsa Adina (1818, not performed until 1826), Rossini's other works during his contract with Naples were all in the opera seria tradition. Amongst the most notable of these, all containing virtuoso singing roles, were Mosè in Egitto (1818), La donna del lago (1819), Maometto II (1820) all staged in Naples, and Semiramide, his last opera written for Italy, staged at La Fenice in Venice in 1823. The three versions of the opera semiseria Matilde di Shabran were written in 1821/1822. Both Mosè and Maometto II were later to undergo significant reconstruction in Paris (see below).", "title": "Music" }, { "paragraph_id": 57, "text": "Already in 1818, Meyerbeer had heard rumours that Rossini was seeking a lucrative appointment at the Paris Opéra – \"Should [his proposals] be accepted, he will go to the French capital, and we will perhaps experience curious things.\" Some six years were to pass before this prophecy came true.", "title": "Music" }, { "paragraph_id": 58, "text": "In 1824 Rossini, under a contract with the French government, became director of the Théâtre-Italien in Paris, where he introduced Meyerbeer's opera Il crociato in Egitto, and for which he wrote Il viaggio a Reims to celebrate the coronation of Charles X (1825). This was his last opera to an Italian libretto, and was later cannibalised to create his first French opera, Le comte Ory (1828). A new contract in 1826 meant he could concentrate on productions at the Opéra and to this end he substantially revised Maometto II as Le siège de Corinthe (1826) and Mosé as Moïse et Pharaon (1827). Meeting French taste, the works are extended (each by one act), the vocal lines in the revisions are less florid and the dramatic structure is enhanced, with the proportion of arias reduced. One of the most striking additions was the chorus at the end of Act III of Moïse, with a crescendo repetition of a diatonic ascending bass line, rising first by a minor third, then by a major third, at each appearance, and a descending chromatic top line, which roused the excitement of audiences.", "title": "Music" }, { "paragraph_id": 59, "text": "Rossini's government contract required him to create at least one new \"grand opėra\", and Rossini settled on the story of William Tell, working closely with the librettist Étienne de Jouy. The story in particular enabled him to indulge \"an underlying interest in the related genres of folk music, pastoral and the picturesque\". This becomes clear from the overture, which is explicitly programmatic in describing weather, scenery and action, and presents a version of the ranz des vaches, the Swiss cowherd's call, which \"undergoes a number of transformations during the opera\" and gives it in Richard Osborne's opinion \"something of the character of a leitmotif\". In the opinion of the music historian Benjamin Walton, Rossini \"saturate[s] the work with local colour to such a degree that there is room for little else.\" Thus, the role of the soloists is significantly reduced compared to other Rossini operas, the hero not even having an aria of his own, whilst the chorus of the Swiss people is consistently in the musical and dramatic foregrounds.", "title": "Music" }, { "paragraph_id": 60, "text": "Guillaume Tell premiered in August 1829. Rossini also provided for the Opéra a shorter, three-act version, which incorporated the pas redoublé (quick march) final section of the overture in its finale; it was first performed in 1831 and became the basis of the Opéra's future productions. Tell was very successful from the start and was frequently revived – in 1868 the composer was present at its 500th performance at the Opéra. The Globe had reported enthusiastically at its opening that \"a new epoch has opened not only for French opera, but for dramatic music elsewhere\". This was an era, it transpired, in which Rossini was not to participate.", "title": "Music" }, { "paragraph_id": 61, "text": "Rossini's contract required him to provide five new works for the Opéra over 10 years. After the première of Tell he was already considering some opera subjects, including Goethe's Faust, but the only significant works he completed before abandoning Paris in 1836 were the Stabat Mater, written for a private commission in 1831 (later completed and published in 1841), and the collection of salon vocal music Soirées musicales published in 1835. Living in Bologna, he occupied himself teaching singing at the Liceo Musicale, and also created a pasticcio of Tell, Rodolfo di Sterlinga, for the benefit of the singer Nicola Ivanoff [it], for which Giuseppe Verdi provided some new arias. Continuing demand in Paris resulted in the production of a \"new\" French version of Otello in 1844 (with which Rossini was not involved) and a \"new\" opera Robert Bruce for which Rossini cooperated with Louis Niedermeyer and others to recast music for La donna del lago and others of his works which were little-known in Paris to fit a new libretto. The success of both of these was qualified, to say the least.", "title": "Music" }, { "paragraph_id": 62, "text": "Not until Rossini returned to Paris in 1855 were there signs of a revival of his musical spirits. A stream of pieces, for voices, choir, piano, and chamber ensembles, written for his soirées, the Péchés de vieillesse (Sins of old age) were issued in thirteen volumes from 1857 to 1868; of these, volumes 4 to 8 comprise \"56 semi-comical piano pieces .... dedicated to pianists of the fourth class, to which I have the honour of belonging.\" These include a mock funeral march, Marche et reminiscences pour mon dernier voyage (March and reminiscences for my last journey). Gossett writes of the Péchés \"Their historical position remains to be assessed but it seems likely that their effect, direct or indirect, on composers like Camille Saint-Saëns and Erik Satie was significant.\"", "title": "Music" }, { "paragraph_id": 63, "text": "The most substantial work of Rossini's last decade, the Petite messe solennelle (1863), was written for small forces (originally voices, two pianos and harmonium), and therefore unsuited to concert hall performance; and as it included women's voices it was unacceptable for church performances at the time. For these reasons, Richard Osborne suggests, the piece has been somewhat overlooked among Rossini's compositions. It is neither especially petite (little) nor entirely solennelle (solemn), but is notable for its grace, counterpoint and melody. At the end of the manuscript, the composer wrote:", "title": "Music" }, { "paragraph_id": 64, "text": "Dear God, here it is finished, this poor little Mass. Is it sacred music I have written, or damned music? I was born for opera buffa, as you know well. A little technique, a little heart, that's all. Be blessed then, and grant me Paradise.", "title": "Music" }, { "paragraph_id": 65, "text": "The popularity of Rossini's melodies led many contemporary virtuosi to create piano transcriptions or fantasies based on them. Examples include Sigismond Thalberg's fantasy on themes from Moïse, the sets of variations on \"Non più mesta\" from La Cenerentola by Henri Herz, Frédéric Chopin, Franz Hünten, Anton Diabelli and Friedrich Burgmüller, and Liszt's transcriptions of the William Tell overture (1838) and the Soirées musicales.", "title": "Influence and legacy" }, { "paragraph_id": 66, "text": "The continuing popularity of his comic operas (and the decline in staging his opere serie), the overthrow of the singing and staging styles of his period, and the emerging concept of the composer as a \"creative artist\" rather than a craftsman, diminished and distorted Rossini's place in music history even though the forms of Italian opera continued up to the period of verismo to be indebted to his innovations. Rossini's status amongst his contemporary Italian composers is indicated by the Messa per Rossini, a project initiated by Verdi within a few days of Rossini's death, which he and a dozen other composers created in collaboration.", "title": "Influence and legacy" }, { "paragraph_id": 67, "text": "If Rossini's principal legacy to Italian opera was in vocal forms and dramatic structure for serious opera, his legacy to French opera was to provide a bridge from opera buffa to the development of opéra comique (and thence, via Jacques Offenbach's opéras bouffes to the genre of operetta). Opéras comiques showing a debt to Rossini's style include François-Adrien Boieldieu's La dame blanche (1825) and Daniel Auber's Fra Diavolo (1830), as well as works by Ferdinand Hérold, Adolphe Adam and Fromental Halévy. Critical of Rossini's style was Hector Berlioz, who wrote of his \"melodic cynicism, his contempt for dramatic and good sense, his endless repetition of a single form of cadence, his eternal puerile crescendo and his brutal bass drum\".", "title": "Influence and legacy" }, { "paragraph_id": 68, "text": "It was perhaps inevitable that the formidable reputation which Rossini had built in his lifetime would fade thereafter. In 1886, less than twenty years after the composer's death, Bernard Shaw wrote: \"The once universal Rossini, whose Semiramide appeared to our greener grandfathers a Ninevesque wonder, came at last to be no longer looked upon as a serious musician.\" In an 1877 review of Il barbiere, he noted that Adelina Patti sang as an encore in the lesson scene \"Home, Sweet Home\" but that \"the opera proved so intolerably wearisome that some of her audience had already displayed their appreciation of the sentiment of the ballad in the most practical way.\"", "title": "Influence and legacy" }, { "paragraph_id": 69, "text": "In the early 20th century Rossini received tributes from both Ottorino Respighi, who had orchestrated excerpts from the Péchés de viellesse both in his ballet la boutique fantasque (1918) and in his 1925 suite Rossiniana, and from Benjamin Britten, who adapted music by Rossini for two suites, Soirées musicales (Op. 9) in 1937 and Matinées musicales (Op. 24) in 1941. Richard Osborne singles out the three-volume biography of Rossini by Giuseppe Radiciotti (1927–1929) as an important turning point towards positive appreciation, which may also have been assisted by the trend of neoclassicism in music. A firm re-evaluation of Rossini's significance began only later in the 20th century in the light of study, and the creation of critical editions, of his works. A prime mover in these developments was the \"Fondazione G. Rossini\" which was created by the city of Pesaro in 1940 using the funds which had been left to the city by the composer. Since 1980 the \"Fondazione\" has supported the annual Rossini Opera Festival in Pesaro.", "title": "Influence and legacy" }, { "paragraph_id": 70, "text": "In the 21st century, the Rossini repertoire of opera houses around the world remains dominated by Il barbiere, La Cenerentola being the second most popular. Several other operas are regularly produced, including Le comte Ory, La donna del lago, La gazza ladra, Guillaume Tell, L'italiana in Algeri, La scala di seta, Il turco in Italia and Il viaggio a Reims. Other Rossini pieces in the current international repertory, given from time to time, include Adina, Armida, Elisabetta regina d'Inghilterra, Ermione, Mosé in Egitto and Tancredi. The Rossini in Wildbad festival specialises in producing the rarer works. The Operabase performance-listing website records 2,319 performances of 532 productions of Rossini operas in 255 venues across the world in the three years 2017–2019. All of Rossini's operas have been recorded.", "title": "Influence and legacy" } ]
Gioachino Antonio Rossini was an Italian composer who gained fame for his 39 operas, although he also wrote many songs, some chamber music and piano pieces, and some sacred music. He set new standards for both comic and serious opera before retiring from large-scale composition while still in his thirties, at the height of his popularity. Born in Pesaro to parents who were both musicians, Rossini began to compose by the age of twelve and was educated at music school in Bologna. His first opera was performed in Venice in 1810 when he was 18 years old. In 1815 he was engaged to write operas and manage theatres in Naples. In the period 1810–1823, he wrote 34 operas for the Italian stage that were performed in Venice, Milan, Ferrara, Naples and elsewhere; this productivity necessitated an almost formulaic approach for some components and a certain amount of self-borrowing. During this period he produced his most popular works, including the comic operas L'italiana in Algeri, Il barbiere di Siviglia and La Cenerentola, which brought to a peak the opera buffa tradition he inherited from masters such as Domenico Cimarosa and Giovanni Paisiello. He also composed opera seria works such as Tancredi, Otello and Semiramide. All of these attracted admiration for their innovation in melody, harmonic and instrumental colour, and dramatic form. In 1824 he was contracted by the Opéra in Paris, for which he produced an opera to celebrate the coronation of Charles X, Il viaggio a Reims, revisions of two of his Italian operas, Le siège de Corinthe and Moïse, and in 1829 his last opera, Guillaume Tell. Rossini's withdrawal from opera for the last 40 years of his life has never been fully explained; contributory factors may have been ill-health, the wealth his success had brought him, and the rise of spectacular grand opera under composers such as Giacomo Meyerbeer. From the early 1830s to 1855, when he left Paris and was based in Bologna, Rossini wrote relatively little. On his return to Paris in 1855 he became renowned for his musical salons on Saturdays, regularly attended by musicians and the artistic and fashionable circles of Paris, for which he wrote the entertaining pieces Péchés de vieillesse. Guests included Franz Liszt, Anton Rubinstein, Giuseppe Verdi, Meyerbeer and Joseph Joachim. Rossini's last major composition was his Petite messe solennelle (1863). He died in Paris in 1868.
2001-08-02T02:42:11Z
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https://en.wikipedia.org/wiki/Gioachino_Rossini
12,407
Gibberish
Gibberish, also called jibber-jabber or gobbledygook, is speech that is (or appears to be) nonsense: ranging across speech sounds that are not actual words, pseudowords, language games and specialized jargon that seems nonsensical to outsiders. "Gibberish" is also used as an imprecation to denigrate or tar ideas or opinions the user disagrees with or finds irksome, a rough equivalent of "nonsense", "folderol", or "claptrap". The implication is that the criticized expression or proposition lacks substance or congruence, as opposed to being a differing view. The related word jibber-jabber refers to rapid talk that is difficult to understand. The etymology of gibberish is uncertain. The term was first seen in English in the early 16th century. It is generally thought to be an onomatopoeia imitative of speech, similar to the words jabber (to talk rapidly) and gibber (to speak inarticulately). It may originate from the word jib, which is the Angloromani variant of the Romani language word meaning "language" or "tongue". To non-speakers, the Anglo-Romany dialect could sound like English mixed with nonsense words, and if those seemingly nonsensical words are referred to as jib then the term gibberish could be derived as a descriptor for nonsensical speech. Samuel Johnson, in A Dictionary of the English Language, published in 1755, wrote that the word gibberish "is probably derived from the chymical cant, and originally implied the jargon of Geber and his tribe." The theory was that gibberish came from the name of a famous 8th century Muslim alchemist, Jābir ibn Hayyān, whose name was Latinized as Geber. Thus, gibberish was a reference to the incomprehensible technical jargon and allegorical coded language used by Jabir and other alchemists. After 1818, editors of Johnson's Dictionary rejected that origin theory. A discredited alternative theory asserts that it is derived from the Irish word gob or gab ("mouth") or from the Irish phrase Geab ar ais ("back talk, backward chat"). The latter Irish etymology was suggested by Daniel Cassidy, whose work has been criticised by linguists and scholars. The terms geab and geabaire are certainly Irish words, but the phrase geab ar ais does not exist, and the word gibberish exists as a loan-word in Irish as gibiris. The term gobbledygook was coined by Maury Maverick, a former congressman from Texas and former mayor of San Antonio. When Maverick was chairman of the Smaller War Plants Corporation during World War II, he sent a memorandum that said: "Be short and use plain English. ... Stay off gobbledygook language." Maverick defined gobbledygook as "talk or writing which is long, pompous, vague, involved, usually with Latinized words." The allusion was to a turkey, "always gobbledygobbling and strutting with ridiculous pomposity." The term "gobbledygook" has a long history of use in politics to deride deliberately obscure statements and complicated but ineffective explanations. The following are a few examples: Using gibberish whilst acting can be used as an improvisation exercise in theatre arts education. Another usage of gibberish is as part of Rajneesh's "Gibberish meditation". The Italian musical artist Adriano Celentano wrote and performed the song "Prisencolinensinainciusol" in gibberish as an intentional mimic of the sound of English to those who are not fluent in the language. The terms officialese or bureaucratese refer to language used by officials or authorities. Legalese is a closely related concept, referring to language used by lawyers, legislators, and others involved with the law. The language used in these fields may contain complex sentences and specialized jargon or buzzwords, making it difficult for those outside the field to understand. Speakers or writers of officialese or legalese may recognize that it is confusing or even meaningless to outsiders, but view its use as appropriate within their organization or group. Bafflegab is a synonym, a slang term referring to confusing or a generally unintelligible use of jargon.
[ { "paragraph_id": 0, "text": "Gibberish, also called jibber-jabber or gobbledygook, is speech that is (or appears to be) nonsense: ranging across speech sounds that are not actual words, pseudowords, language games and specialized jargon that seems nonsensical to outsiders.", "title": "" }, { "paragraph_id": 1, "text": "\"Gibberish\" is also used as an imprecation to denigrate or tar ideas or opinions the user disagrees with or finds irksome, a rough equivalent of \"nonsense\", \"folderol\", or \"claptrap\". The implication is that the criticized expression or proposition lacks substance or congruence, as opposed to being a differing view.", "title": "" }, { "paragraph_id": 2, "text": "The related word jibber-jabber refers to rapid talk that is difficult to understand.", "title": "" }, { "paragraph_id": 3, "text": "The etymology of gibberish is uncertain. The term was first seen in English in the early 16th century. It is generally thought to be an onomatopoeia imitative of speech, similar to the words jabber (to talk rapidly) and gibber (to speak inarticulately).", "title": "Etymology" }, { "paragraph_id": 4, "text": "It may originate from the word jib, which is the Angloromani variant of the Romani language word meaning \"language\" or \"tongue\". To non-speakers, the Anglo-Romany dialect could sound like English mixed with nonsense words, and if those seemingly nonsensical words are referred to as jib then the term gibberish could be derived as a descriptor for nonsensical speech.", "title": "Etymology" }, { "paragraph_id": 5, "text": "Samuel Johnson, in A Dictionary of the English Language, published in 1755, wrote that the word gibberish \"is probably derived from the chymical cant, and originally implied the jargon of Geber and his tribe.\" The theory was that gibberish came from the name of a famous 8th century Muslim alchemist, Jābir ibn Hayyān, whose name was Latinized as Geber. Thus, gibberish was a reference to the incomprehensible technical jargon and allegorical coded language used by Jabir and other alchemists. After 1818, editors of Johnson's Dictionary rejected that origin theory.", "title": "Etymology" }, { "paragraph_id": 6, "text": "A discredited alternative theory asserts that it is derived from the Irish word gob or gab (\"mouth\") or from the Irish phrase Geab ar ais (\"back talk, backward chat\"). The latter Irish etymology was suggested by Daniel Cassidy, whose work has been criticised by linguists and scholars. The terms geab and geabaire are certainly Irish words, but the phrase geab ar ais does not exist, and the word gibberish exists as a loan-word in Irish as gibiris.", "title": "Etymology" }, { "paragraph_id": 7, "text": "The term gobbledygook was coined by Maury Maverick, a former congressman from Texas and former mayor of San Antonio. When Maverick was chairman of the Smaller War Plants Corporation during World War II, he sent a memorandum that said: \"Be short and use plain English. ... Stay off gobbledygook language.\" Maverick defined gobbledygook as \"talk or writing which is long, pompous, vague, involved, usually with Latinized words.\" The allusion was to a turkey, \"always gobbledygobbling and strutting with ridiculous pomposity.\"", "title": "Etymology" }, { "paragraph_id": 8, "text": "The term \"gobbledygook\" has a long history of use in politics to deride deliberately obscure statements and complicated but ineffective explanations. The following are a few examples:", "title": "Use" }, { "paragraph_id": 9, "text": "Using gibberish whilst acting can be used as an improvisation exercise in theatre arts education. Another usage of gibberish is as part of Rajneesh's \"Gibberish meditation\".", "title": "Use" }, { "paragraph_id": 10, "text": "The Italian musical artist Adriano Celentano wrote and performed the song \"Prisencolinensinainciusol\" in gibberish as an intentional mimic of the sound of English to those who are not fluent in the language.", "title": "Use" }, { "paragraph_id": 11, "text": "The terms officialese or bureaucratese refer to language used by officials or authorities. Legalese is a closely related concept, referring to language used by lawyers, legislators, and others involved with the law. The language used in these fields may contain complex sentences and specialized jargon or buzzwords, making it difficult for those outside the field to understand. Speakers or writers of officialese or legalese may recognize that it is confusing or even meaningless to outsiders, but view its use as appropriate within their organization or group.", "title": "Other terms and usage" }, { "paragraph_id": 12, "text": "Bafflegab is a synonym, a slang term referring to confusing or a generally unintelligible use of jargon.", "title": "Other terms and usage" } ]
Gibberish, also called jibber-jabber or gobbledygook, is speech that is nonsense: ranging across speech sounds that are not actual words, pseudowords, language games and specialized jargon that seems nonsensical to outsiders. "Gibberish" is also used as an imprecation to denigrate or tar ideas or opinions the user disagrees with or finds irksome, a rough equivalent of "nonsense", "folderol", or "claptrap". The implication is that the criticized expression or proposition lacks substance or congruence, as opposed to being a differing view. The related word jibber-jabber refers to rapid talk that is difficult to understand.
2001-08-02T15:19:25Z
2023-12-30T19:16:48Z
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https://en.wikipedia.org/wiki/Gibberish
12,408
Gnaeus Julius Agricola
Gnaeus Julius Agricola (/əˈɡrɪkələ/; 13 June 40 – 23 August 93) was a Roman general and politician responsible for much of the Roman conquest of Britain. Born to a political family of senatorial rank, Agricola began his military career as a military tribune under Governor Gaius Suetonius Paulinus. In his subsequent career, he served in a variety of political positions in Rome. In 64, he was appointed quaestor in Asia province. Two years later, he was appointed Plebeian Tribune, and in 68, he was made praetor. During the Year of the Four Emperors in 69, he supported Vespasian, general of the Syrian army, in his bid for the throne. When Vespasian became emperor, Agricola was made a patrician and appointed governor of Gallia Aquitania. In 77, he was made consul and governor of Britannia. As governor, he completed the conquest of what is today Wales and northern England, and led his army to the far north of Scotland, establishing forts across much of the lowlands. In 85, Agricola was recalled from Britain after an unusually lengthy service by Emperor Domitian. After his return, he retired from military and public life and died in 93. Most of what is known about Agricola and his governorship was written in the De vita et moribus Iulii Agricolae, a primary source, written by Tacitus, Agricola's son-in-law, and detailed archaeological evidence from northern Britain. Agricola was born in the colonia of Forum Julii, Gallia Narbonensis (now Fréjus, France). Agricola's parents were from noted political families of senatorial rank in Roman Gaul. Both of his grandfathers served as imperial governors. His father, Lucius Julius Graecinus, was a praetor and had become a member of the Roman Senate in the year of Agricola's birth. Graecinus had become distinguished by his interest in philosophy. Between August 40 and January 41, the emperor Caligula ordered his death, because he refused to prosecute the emperor's second cousin Marcus Junius Silanus. His mother was Julia Procilla. The Roman historian Tacitus describes her as "a lady of singular virtue" who had a fond affection for her son. Agricola was educated in Massilia (Marseille), and showed what was considered an unhealthy interest in philosophy. He began his career in Roman public life as a military tribune, he served in Britain under Gaius Suetonius Paulinus from 58 to 62. He was probably attached to the Legio II Augusta, but was chosen to serve on Suetonius's staff and thus almost certainly participated in the suppression of Boudica's uprising in 61. Returning from Britain to Rome in 62, he married Domitia Decidiana, a woman of noble birth. Their first child was a son. Agricola was appointed as quaestor in 64, which he served in the province of Asia under the corrupt proconsul Lucius Salvius Otho Titianus. While he was there, his daughter, Julia Agricola, was born, but his son died shortly afterwards. He was tribune of the plebs in 66 and praetor in June 68, during which time he was ordered by the Governor of Spain Galba to take an inventory of the temple treasures. During that time, the emperor Nero was declared a public enemy by the Senate and committed suicide, and the period of civil war known as the Year of the Four Emperors began. Galba succeeded Nero, but was murdered in early 69 by Otho, who took the throne. Agricola's mother was murdered on her estate in Liguria by Otho's marauding fleet. Hearing of Vespasian's bid for the empire, Agricola immediately gave him his support. Otho meanwhile committed suicide after being defeated by Vitellius. After Vespasian had established himself as emperor, Agricola was appointed to the command of the Legio XX Valeria Victrix, stationed in Britain, in place of Marcus Roscius Coelius, who had stirred up a mutiny against the governor, Marcus Vettius Bolanus. Britain had revolted during the year of civil war, and Bolanus was a mild governor. Agricola reimposed discipline on the legion and helped to consolidate Roman rule. In 71, Bolanus was replaced by a more aggressive governor, Quintus Petillius Cerialis, and Agricola was able to display his talents as a commander in campaigns against the Brigantes in northern England. When his command ended in 73, Agricola was enrolled as a patrician and appointed to govern Gallia Aquitania. There he stayed for almost three years. In 76 or 77, he was recalled to Rome and appointed suffect consul, and betrothed his daughter to Tacitus. The following year, Tacitus and Julia married; Agricola was appointed to the College of Pontiffs, and returned to Britain for a third time, as its governor (Legatus Augusti pro praetore). Arriving in midsummer of 77, Agricola discovered that the Ordovices of north Wales had virtually destroyed the Roman cavalry stationed in their territory. He immediately moved against them and defeated them. His campaign then moved onto Anglesey where he subjugated the entire island. Almost two decades earlier, Governor Gaius Suetonius Paulinus had attempted the same but Roman forces had to withdraw in 60CE because of the outbreak of the Boudican rebellion. Agricola also expanded Roman rule north into Caledonia (modern Scotland). In the summer of 79, he pushed his armies to the estuary of the river Taus, usually interpreted as the Firth of Tay, virtually unchallenged, and established some forts. Though their location is left unspecified, the close dating of the fort at Elginhaugh in Midlothian makes it a possible candidate. He established himself as a good administrator by reforming the widely corrupt corn levy as well as through his military successes. He introduced Romanising measures, encouraging communities to build towns on the Roman model and gave a Roman education to sons of native nobility; albeit, as Tacitus notes, for the cynical reason of pacifying the aggressive tribes in Britannia for the servitude of Rome. In 81, Agricola "crossed in the first ship" and defeated peoples unknown to the Romans until then. Tacitus, in Chapter 24 of Agricola, does not tell us what body of water he crossed. Modern scholarship favours either the Firth of Clyde or Firth of Forth. Tacitus also mentions Hibernia, so southwest Scotland is perhaps to be preferred. The text of the Agricola has been amended here to record the Romans "crossing into trackless wastes", referring to the wilds of the Galloway peninsula. Agricola fortified the coast facing Ireland, and Tacitus recalls that his father-in-law often claimed the island could be conquered with a single legion and auxiliaries. He had given refuge to an exiled Irish king whom he hoped he might use as the excuse for conquest. This conquest never happened, but some historians believe the crossing referred to was in fact a small-scale exploratory or punitive expedition to Ireland, though no Roman camps have been identified to confirm such a suggestion. Irish legend provides a striking parallel. Tuathal Teachtmhar, a legendary High King, is said to have been exiled from Ireland as a boy, and to have returned from Britain at the head of an army to claim the throne. The traditional date of his return is between 76 and 80, and archaeology has found Roman or Romano-British artefacts in several sites associated with Tuathal. The following year, Agricola raised a fleet and encircled the tribes beyond the Forth, and the Caledonians rose in great numbers against him. They attacked the camp of the Legio IX Hispana at night, but Agricola sent in his cavalry and they were put to flight. The Romans responded by pushing further north. Another son was born to Agricola this year, but died before his first birthday. In the summer of 83, Agricola faced the massed armies of the Caledonians, led by Calgacus, at the Battle of Mons Graupius. Tacitus estimates their numbers at more than 30,000. Agricola put his auxiliaries in the front line, keeping the legions in reserve, and relied on close-quarters fighting to make the Caledonians' unpointed slashing swords useless as they were unable to swing them properly or utilise thrusting attacks. Even though the Caledonians were put to rout and therefore lost this battle, two thirds of their army managed to escape and hide in the Highlands or the "trackless wilds" as Tacitus calls them. Battle casualties were estimated by Tacitus to be about 10,000 on the Caledonian side and 360 on the Roman side. A number of authors have reckoned the battle to have occurred in the Grampian Mounth within sight of the North Sea. In particular, Roy, Surenne, Watt, Hogan and others have advanced notions that the site of the battle may have been Kempstone Hill, Megray Hill or other knolls near the Raedykes Roman camp; these points of high ground are proximate to the Elsick Mounth, an ancient trackway used by Romans and Caledonians for military manoeuvres. However, following the discovery of the Roman camp at Durno in 1975, most scholars now believe that the battle took place on the ground around Bennachie in Aberdeenshire. Satisfied with his victory, Agricola extracted hostages from the Caledonian tribes. He may have marched his army to the northern coast of Britain, as evidenced by the probable discovery of a Roman fort at Cawdor (near Inverness). He also instructed the prefect of the fleet to sail around the north coast, confirming (allegedly for the first time) that Britain was in fact an island. In 2019, GUARD Archaeology team led by Iraia Arabaolaza uncovered a marching camp dating to the 1st century AD in Ayr, used by Roman legions during the invasion of Roman General Agricola. According to Arabaolaza, the fire pits were split 30 meters apart into two parallel lines. The findings also included clay-domed ovens and 26 fire pits dated to between 77- 86 AD and 90 AD loaded with burn and charcoal contents. Archaeologists suggested that this site had been chosen as a strategic location for the Roman conquest of Ayrshire. Agricola was recalled from Britain in 85, after an unusually long tenure as governor. Tacitus claims Domitian ordered his recall because Agricola's successes outshone the emperor's own modest victories in Germany. He re-entered Rome unobtrusively, reporting as ordered to the palace at night. The relationship between Agricola and the emperor is unclear; on the one hand, Agricola was awarded triumphal decorations and a statue (the highest military honours apart from an actual triumph); on the other, Agricola never again held a civil or military post, in spite of his experience and renown. He was offered the governorship of the province of Africa, but declined it, whether due to ill health or (as Tacitus claims) the machinations of Domitian. In 93, Agricola died on his family estates in Gallia Narbonensis aged fifty-three. Rumours circulated attributing the death to a poison administered by the emperor Domitian, but no positive evidence for this was ever produced.
[ { "paragraph_id": 0, "text": "Gnaeus Julius Agricola (/əˈɡrɪkələ/; 13 June 40 – 23 August 93) was a Roman general and politician responsible for much of the Roman conquest of Britain. Born to a political family of senatorial rank, Agricola began his military career as a military tribune under Governor Gaius Suetonius Paulinus. In his subsequent career, he served in a variety of political positions in Rome. In 64, he was appointed quaestor in Asia province. Two years later, he was appointed Plebeian Tribune, and in 68, he was made praetor. During the Year of the Four Emperors in 69, he supported Vespasian, general of the Syrian army, in his bid for the throne.", "title": "" }, { "paragraph_id": 1, "text": "When Vespasian became emperor, Agricola was made a patrician and appointed governor of Gallia Aquitania. In 77, he was made consul and governor of Britannia. As governor, he completed the conquest of what is today Wales and northern England, and led his army to the far north of Scotland, establishing forts across much of the lowlands. In 85, Agricola was recalled from Britain after an unusually lengthy service by Emperor Domitian. After his return, he retired from military and public life and died in 93. Most of what is known about Agricola and his governorship was written in the De vita et moribus Iulii Agricolae, a primary source, written by Tacitus, Agricola's son-in-law, and detailed archaeological evidence from northern Britain.", "title": "" }, { "paragraph_id": 2, "text": "Agricola was born in the colonia of Forum Julii, Gallia Narbonensis (now Fréjus, France). Agricola's parents were from noted political families of senatorial rank in Roman Gaul. Both of his grandfathers served as imperial governors. His father, Lucius Julius Graecinus, was a praetor and had become a member of the Roman Senate in the year of Agricola's birth. Graecinus had become distinguished by his interest in philosophy. Between August 40 and January 41, the emperor Caligula ordered his death, because he refused to prosecute the emperor's second cousin Marcus Junius Silanus.", "title": "Early life" }, { "paragraph_id": 3, "text": "His mother was Julia Procilla. The Roman historian Tacitus describes her as \"a lady of singular virtue\" who had a fond affection for her son. Agricola was educated in Massilia (Marseille), and showed what was considered an unhealthy interest in philosophy.", "title": "Early life" }, { "paragraph_id": 4, "text": "He began his career in Roman public life as a military tribune, he served in Britain under Gaius Suetonius Paulinus from 58 to 62. He was probably attached to the Legio II Augusta, but was chosen to serve on Suetonius's staff and thus almost certainly participated in the suppression of Boudica's uprising in 61.", "title": "Political career" }, { "paragraph_id": 5, "text": "Returning from Britain to Rome in 62, he married Domitia Decidiana, a woman of noble birth. Their first child was a son. Agricola was appointed as quaestor in 64, which he served in the province of Asia under the corrupt proconsul Lucius Salvius Otho Titianus. While he was there, his daughter, Julia Agricola, was born, but his son died shortly afterwards. He was tribune of the plebs in 66 and praetor in June 68, during which time he was ordered by the Governor of Spain Galba to take an inventory of the temple treasures.", "title": "Political career" }, { "paragraph_id": 6, "text": "During that time, the emperor Nero was declared a public enemy by the Senate and committed suicide, and the period of civil war known as the Year of the Four Emperors began. Galba succeeded Nero, but was murdered in early 69 by Otho, who took the throne. Agricola's mother was murdered on her estate in Liguria by Otho's marauding fleet. Hearing of Vespasian's bid for the empire, Agricola immediately gave him his support. Otho meanwhile committed suicide after being defeated by Vitellius.", "title": "Political career" }, { "paragraph_id": 7, "text": "After Vespasian had established himself as emperor, Agricola was appointed to the command of the Legio XX Valeria Victrix, stationed in Britain, in place of Marcus Roscius Coelius, who had stirred up a mutiny against the governor, Marcus Vettius Bolanus. Britain had revolted during the year of civil war, and Bolanus was a mild governor. Agricola reimposed discipline on the legion and helped to consolidate Roman rule. In 71, Bolanus was replaced by a more aggressive governor, Quintus Petillius Cerialis, and Agricola was able to display his talents as a commander in campaigns against the Brigantes in northern England.", "title": "Political career" }, { "paragraph_id": 8, "text": "When his command ended in 73, Agricola was enrolled as a patrician and appointed to govern Gallia Aquitania. There he stayed for almost three years. In 76 or 77, he was recalled to Rome and appointed suffect consul, and betrothed his daughter to Tacitus. The following year, Tacitus and Julia married; Agricola was appointed to the College of Pontiffs, and returned to Britain for a third time, as its governor (Legatus Augusti pro praetore).", "title": "Political career" }, { "paragraph_id": 9, "text": "Arriving in midsummer of 77, Agricola discovered that the Ordovices of north Wales had virtually destroyed the Roman cavalry stationed in their territory. He immediately moved against them and defeated them. His campaign then moved onto Anglesey where he subjugated the entire island. Almost two decades earlier, Governor Gaius Suetonius Paulinus had attempted the same but Roman forces had to withdraw in 60CE because of the outbreak of the Boudican rebellion.", "title": "Governor of Britain" }, { "paragraph_id": 10, "text": "Agricola also expanded Roman rule north into Caledonia (modern Scotland). In the summer of 79, he pushed his armies to the estuary of the river Taus, usually interpreted as the Firth of Tay, virtually unchallenged, and established some forts. Though their location is left unspecified, the close dating of the fort at Elginhaugh in Midlothian makes it a possible candidate. He established himself as a good administrator by reforming the widely corrupt corn levy as well as through his military successes. He introduced Romanising measures, encouraging communities to build towns on the Roman model and gave a Roman education to sons of native nobility; albeit, as Tacitus notes, for the cynical reason of pacifying the aggressive tribes in Britannia for the servitude of Rome.", "title": "Governor of Britain" }, { "paragraph_id": 11, "text": "In 81, Agricola \"crossed in the first ship\" and defeated peoples unknown to the Romans until then. Tacitus, in Chapter 24 of Agricola, does not tell us what body of water he crossed. Modern scholarship favours either the Firth of Clyde or Firth of Forth. Tacitus also mentions Hibernia, so southwest Scotland is perhaps to be preferred. The text of the Agricola has been amended here to record the Romans \"crossing into trackless wastes\", referring to the wilds of the Galloway peninsula. Agricola fortified the coast facing Ireland, and Tacitus recalls that his father-in-law often claimed the island could be conquered with a single legion and auxiliaries. He had given refuge to an exiled Irish king whom he hoped he might use as the excuse for conquest. This conquest never happened, but some historians believe the crossing referred to was in fact a small-scale exploratory or punitive expedition to Ireland, though no Roman camps have been identified to confirm such a suggestion.", "title": "Governor of Britain" }, { "paragraph_id": 12, "text": "Irish legend provides a striking parallel. Tuathal Teachtmhar, a legendary High King, is said to have been exiled from Ireland as a boy, and to have returned from Britain at the head of an army to claim the throne. The traditional date of his return is between 76 and 80, and archaeology has found Roman or Romano-British artefacts in several sites associated with Tuathal.", "title": "Governor of Britain" }, { "paragraph_id": 13, "text": "The following year, Agricola raised a fleet and encircled the tribes beyond the Forth, and the Caledonians rose in great numbers against him. They attacked the camp of the Legio IX Hispana at night, but Agricola sent in his cavalry and they were put to flight. The Romans responded by pushing further north. Another son was born to Agricola this year, but died before his first birthday.", "title": "Governor of Britain" }, { "paragraph_id": 14, "text": "In the summer of 83, Agricola faced the massed armies of the Caledonians, led by Calgacus, at the Battle of Mons Graupius. Tacitus estimates their numbers at more than 30,000. Agricola put his auxiliaries in the front line, keeping the legions in reserve, and relied on close-quarters fighting to make the Caledonians' unpointed slashing swords useless as they were unable to swing them properly or utilise thrusting attacks. Even though the Caledonians were put to rout and therefore lost this battle, two thirds of their army managed to escape and hide in the Highlands or the \"trackless wilds\" as Tacitus calls them. Battle casualties were estimated by Tacitus to be about 10,000 on the Caledonian side and 360 on the Roman side.", "title": "Governor of Britain" }, { "paragraph_id": 15, "text": "A number of authors have reckoned the battle to have occurred in the Grampian Mounth within sight of the North Sea. In particular, Roy, Surenne, Watt, Hogan and others have advanced notions that the site of the battle may have been Kempstone Hill, Megray Hill or other knolls near the Raedykes Roman camp; these points of high ground are proximate to the Elsick Mounth, an ancient trackway used by Romans and Caledonians for military manoeuvres. However, following the discovery of the Roman camp at Durno in 1975, most scholars now believe that the battle took place on the ground around Bennachie in Aberdeenshire.", "title": "Governor of Britain" }, { "paragraph_id": 16, "text": "Satisfied with his victory, Agricola extracted hostages from the Caledonian tribes. He may have marched his army to the northern coast of Britain, as evidenced by the probable discovery of a Roman fort at Cawdor (near Inverness).", "title": "Governor of Britain" }, { "paragraph_id": 17, "text": "He also instructed the prefect of the fleet to sail around the north coast, confirming (allegedly for the first time) that Britain was in fact an island.", "title": "Governor of Britain" }, { "paragraph_id": 18, "text": "In 2019, GUARD Archaeology team led by Iraia Arabaolaza uncovered a marching camp dating to the 1st century AD in Ayr, used by Roman legions during the invasion of Roman General Agricola. According to Arabaolaza, the fire pits were split 30 meters apart into two parallel lines. The findings also included clay-domed ovens and 26 fire pits dated to between 77- 86 AD and 90 AD loaded with burn and charcoal contents. Archaeologists suggested that this site had been chosen as a strategic location for the Roman conquest of Ayrshire.", "title": "Governor of Britain" }, { "paragraph_id": 19, "text": "Agricola was recalled from Britain in 85, after an unusually long tenure as governor. Tacitus claims Domitian ordered his recall because Agricola's successes outshone the emperor's own modest victories in Germany. He re-entered Rome unobtrusively, reporting as ordered to the palace at night.", "title": "Later years" }, { "paragraph_id": 20, "text": "The relationship between Agricola and the emperor is unclear; on the one hand, Agricola was awarded triumphal decorations and a statue (the highest military honours apart from an actual triumph); on the other, Agricola never again held a civil or military post, in spite of his experience and renown. He was offered the governorship of the province of Africa, but declined it, whether due to ill health or (as Tacitus claims) the machinations of Domitian.", "title": "Later years" }, { "paragraph_id": 21, "text": "In 93, Agricola died on his family estates in Gallia Narbonensis aged fifty-three. Rumours circulated attributing the death to a poison administered by the emperor Domitian, but no positive evidence for this was ever produced.", "title": "Later years" } ]
Gnaeus Julius Agricola was a Roman general and politician responsible for much of the Roman conquest of Britain. Born to a political family of senatorial rank, Agricola began his military career as a military tribune under Governor Gaius Suetonius Paulinus. In his subsequent career, he served in a variety of political positions in Rome. In 64, he was appointed quaestor in Asia province. Two years later, he was appointed Plebeian Tribune, and in 68, he was made praetor. During the Year of the Four Emperors in 69, he supported Vespasian, general of the Syrian army, in his bid for the throne. When Vespasian became emperor, Agricola was made a patrician and appointed governor of Gallia Aquitania. In 77, he was made consul and governor of Britannia. As governor, he completed the conquest of what is today Wales and northern England, and led his army to the far north of Scotland, establishing forts across much of the lowlands. In 85, Agricola was recalled from Britain after an unusually lengthy service by Emperor Domitian. After his return, he retired from military and public life and died in 93. Most of what is known about Agricola and his governorship was written in the De vita et moribus Iulii Agricolae, a primary source, written by Tacitus, Agricola's son-in-law, and detailed archaeological evidence from northern Britain.
2001-08-02T17:11:15Z
2023-08-29T16:33:40Z
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https://en.wikipedia.org/wiki/Gnaeus_Julius_Agricola
12,417
Guanosine
Guanosine (symbol G or Guo) is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N9-glycosidic bond. Guanosine can be phosphorylated to become guanosine monophosphate (GMP), cyclic guanosine monophosphate (cGMP), guanosine diphosphate (GDP), and guanosine triphosphate (GTP). These forms play important roles in various biochemical processes such as synthesis of nucleic acids and proteins, photosynthesis, muscle contraction, and intracellular signal transduction (cGMP). When guanine is attached by its N9 nitrogen to the C1 carbon of a deoxyribose ring it is known as deoxyguanosine. Guanosine is a white, crystalline powder with no odor and mild saline taste. It is very soluble in acetic acid, slightly soluble in water, insoluble in ethanol, diethyl ether, benzene and chloroform. Guanosine is required for an RNA splicing reaction in mRNA, when a "self-splicing" intron removes itself from the mRNA message by cutting at both ends, re-ligating, and leaving just the exons on either side to be translated into protein. The antiviral drug acyclovir, often used in herpes treatment, and the anti-HIV drug abacavir, are structurally similar to guanosine. Guanosine was also used to make regadenoson. Guanosine can be found in pancreas, clover, coffee plant, and pollen of pines.
[ { "paragraph_id": 0, "text": "Guanosine (symbol G or Guo) is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N9-glycosidic bond. Guanosine can be phosphorylated to become guanosine monophosphate (GMP), cyclic guanosine monophosphate (cGMP), guanosine diphosphate (GDP), and guanosine triphosphate (GTP). These forms play important roles in various biochemical processes such as synthesis of nucleic acids and proteins, photosynthesis, muscle contraction, and intracellular signal transduction (cGMP). When guanine is attached by its N9 nitrogen to the C1 carbon of a deoxyribose ring it is known as deoxyguanosine.", "title": "" }, { "paragraph_id": 1, "text": "Guanosine is a white, crystalline powder with no odor and mild saline taste. It is very soluble in acetic acid, slightly soluble in water, insoluble in ethanol, diethyl ether, benzene and chloroform.", "title": "Physical and chemical properties" }, { "paragraph_id": 2, "text": "Guanosine is required for an RNA splicing reaction in mRNA, when a \"self-splicing\" intron removes itself from the mRNA message by cutting at both ends, re-ligating, and leaving just the exons on either side to be translated into protein.", "title": "Functions" }, { "paragraph_id": 3, "text": "The antiviral drug acyclovir, often used in herpes treatment, and the anti-HIV drug abacavir, are structurally similar to guanosine. Guanosine was also used to make regadenoson.", "title": "Uses" }, { "paragraph_id": 4, "text": "Guanosine can be found in pancreas, clover, coffee plant, and pollen of pines.", "title": "Sources" } ]
Guanosine (symbol G or Guo) is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N9-glycosidic bond. Guanosine can be phosphorylated to become guanosine monophosphate (GMP), cyclic guanosine monophosphate (cGMP), guanosine diphosphate (GDP), and guanosine triphosphate (GTP). These forms play important roles in various biochemical processes such as synthesis of nucleic acids and proteins, photosynthesis, muscle contraction, and intracellular signal transduction (cGMP). When guanine is attached by its N9 nitrogen to the C1 carbon of a deoxyribose ring it is known as deoxyguanosine.
2001-08-03T16:18:38Z
2023-10-22T00:38:46Z
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https://en.wikipedia.org/wiki/Guanosine
12,420
Gödel's ontological proof
Gödel's ontological proof is a formal argument by the mathematician Kurt Gödel (1906–1978) for the existence of God. The argument is in a line of development that goes back to Anselm of Canterbury (1033–1109). St. Anselm's ontological argument, in its most succinct form, is as follows: "God, by definition, is that for which no greater can be conceived. God exists in the understanding. If God exists in the understanding, we could imagine Him to be greater by existing in reality. Therefore, God must exist." A more elaborate version was given by Gottfried Leibniz (1646–1716); this is the version that Gödel studied and attempted to clarify with his ontological argument. Gödel left a fourteen-point outline of his philosophical beliefs in his papers. Points relevant to the ontological proof include: The first version of the ontological proof in Gödel's papers is dated "around 1941". Gödel is not known to have told anyone about his work on the proof until 1970, when he thought he was dying. In February, he allowed Dana Scott to copy out a version of the proof, which circulated privately. In August 1970, Gödel told Oskar Morgenstern that he was "satisfied" with the proof, but Morgenstern recorded in his diary entry for 29 August 1970, that Gödel would not publish because he was afraid that others might think "that he actually believes in God, whereas he is only engaged in a logical investigation (that is, in showing that such a proof with classical assumptions (completeness, etc.) correspondingly axiomatized, is possible)." Gödel died January 14, 1978. Another version, slightly different from Scott's, was found in his papers. It was finally published, together with Scott's version, in 1987. In letters to his mother, who was not a churchgoer and had raised Kurt and his brother as freethinkers, Gödel argued at length for a belief in an afterlife. He did the same in an interview with a skeptical Hao Wang, who said: "I expressed my doubts as G spoke [...] Gödel smiled as he replied to my questions, obviously aware that his answers were not convincing me." Wang reports that Gödel's wife, Adele, two days after Gödel's death, told Wang that "Gödel, although he did not go to church, was religious and read the Bible in bed every Sunday morning." In an unmailed answer to a questionnaire, Gödel described his religion as "baptized Lutheran (but not member of any religious congregation). My belief is theistic, not pantheistic, following Leibniz rather than Spinoza." The proof uses modal logic, which distinguishes between necessary truths and contingent truths. In the most common semantics for modal logic, many "possible worlds" are considered. A truth is necessary if it is true in all possible worlds. By contrast, if a statement happens to be true in our world, but is false in another world, then it is a contingent truth. A statement that is true in some world (not necessarily our own) is called a possible truth. Furthermore, the proof uses higher-order (modal) logic because the definition of God employs an explicit quantification over properties. First, Gödel axiomatizes the notion of a "positive property": for each property φ, either φ or its negation ¬φ must be positive, but not both (axiom 2). If a positive property φ implies a property ψ in each possible world, then ψ is positive, too (axiom 1). Gödel then argues that each positive property is "possibly exemplified", i.e. applies at least to some object in some world (theorem 1). Defining an object to be Godlike if it has all positive properties (definition 1), and requiring that property to be positive itself (axiom 3), Gödel shows that in some possible world a Godlike object exists (theorem 2), called "God" in the following. Gödel proceeds to prove that a Godlike object exists in every possible world. To this end, he defines essences: if x is an object in some world, then a property φ is said to be an essence of x if φ(x) is true in that world and if φ necessarily entails all other properties that x has in that world (definition 2). Requiring positive properties being positive in every possible world (axiom 4), Gödel can show that Godlikeness is an essence of a Godlike object (theorem 3). Now, x is said to exist necessarily if, for every essence φ of x, there is an element y with property φ in every possible world (definition 3). Axiom 5 requires necessary existence to be a positive property. Hence, it must follow from Godlikeness. Moreover, Godlikeness is an essence of God, since it entails all positive properties, and any non-positive property is the negation of some positive property, so God cannot have any non-positive properties. Since necessary existence is also a positive property (axiom 5), it must be a property of every Godlike object, as every Godlike object has all the positive properties (definition 1). Since any Godlike object is necessarily existent, it follows that any Godlike object in one world is a Godlike object in all worlds, by the definition of necessary existence. Given the existence of a Godlike object in one world, proven above, we may conclude that there is a Godlike object in every possible world, as required (theorem 4). Besides axiom 1-5 and definition 1-3, a few other axioms from modal logic were tacitly used in the proof. From these hypotheses, it is also possible to prove that there is only one God in each world by Leibniz's law, the identity of indiscernibles: two or more objects are identical (the same) if they have all their properties in common, and so, there would only be one object in each world that possesses property G. Gödel did not attempt to do so however, as he purposely limited his proof to the issue of existence, rather than uniqueness. Ax. 1. ( P ( φ ) ∧ ◻ ∀ x ( φ ( x ) ⇒ ψ ( x ) ) ) ⇒ P ( ψ ) Ax. 2. P ( ¬ φ ) ⇔ ¬ P ( φ ) Th. 1. P ( φ ) ⇒ ◊ ∃ x φ ( x ) Df. 1. G ( x ) ⇔ ∀ φ ( P ( φ ) ⇒ φ ( x ) ) Ax. 3. P ( G ) Th. 2. ◊ ∃ x G ( x ) Df. 2. φ ess x ⇔ φ ( x ) ∧ ∀ ψ ( ψ ( x ) ⇒ ◻ ∀ y ( φ ( y ) ⇒ ψ ( y ) ) ) Ax. 4. P ( φ ) ⇒ ◻ P ( φ ) Th. 3. G ( x ) ⇒ G ess x Df. 3. E ( x ) ⇔ ∀ φ ( φ ess x ⇒ ◻ ∃ y φ ( y ) ) Ax. 5. P ( E ) Th. 4. ◻ ∃ x G ( x ) {\displaystyle {\begin{array}{rl}{\text{Ax. 1.}}&\left(P(\varphi )\;\wedge \;\Box \;\forall x(\varphi (x)\Rightarrow \psi (x))\right)\;\Rightarrow \;P(\psi )\\{\text{Ax. 2.}}&P(\neg \varphi )\;\Leftrightarrow \;\neg P(\varphi )\\{\text{Th. 1.}}&P(\varphi )\;\Rightarrow \;\Diamond \;\exists x\;\varphi (x)\\{\text{Df. 1.}}&G(x)\;\Leftrightarrow \;\forall \varphi (P(\varphi )\Rightarrow \varphi (x))\\{\text{Ax. 3.}}&P(G)\\{\text{Th. 2.}}&\Diamond \;\exists x\;G(x)\\{\text{Df. 2.}}&\varphi {\text{ ess }}x\;\Leftrightarrow \;\varphi (x)\wedge \forall \psi \left(\psi (x)\Rightarrow \Box \;\forall y(\varphi (y)\Rightarrow \psi (y))\right)\\{\text{Ax. 4.}}&P(\varphi )\;\Rightarrow \;\Box \;P(\varphi )\\{\text{Th. 3.}}&G(x)\;\Rightarrow \;G{\text{ ess }}x\\{\text{Df. 3.}}&E(x)\;\Leftrightarrow \;\forall \varphi (\varphi {\text{ ess }}x\Rightarrow \Box \;\exists y\;\varphi (y))\\{\text{Ax. 5.}}&P(E)\\{\text{Th. 4.}}&\Box \;\exists x\;G(x)\end{array}}} Most criticism of Gödel's proof is aimed at its axioms: as with any proof in any logical system, if the axioms the proof depends on are doubted, then the conclusions can be doubted. It is particularly applicable to Gödel's proof – because it rests on five axioms, some of which are considered questionable. A proof does not necessitate that the conclusion be correct, but rather that by accepting the axioms, the conclusion follows logically. Many philosophers have called the axioms into question. The first layer of criticism is simply that there are no arguments presented that give reasons why the axioms are true. A second layer is that these particular axioms lead to unwelcome conclusions. This line of thought was argued by Jordan Howard Sobel, showing that if the axioms are accepted, they lead to a "modal collapse" where every statement that is true is necessarily true, i.e. the sets of necessary, of contingent, and of possible truths all coincide (provided there are accessible worlds at all). According to Robert Koons, Sobel suggested in a 2005 conference paper that Gödel might have welcomed modal collapse. There are suggested amendments to the proof, presented by C. Anthony Anderson, but argued to be refutable by Anderson and Michael Gettings. Sobel's proof of modal collapse has been questioned by Koons, but a counter-defence by Sobel has been given. Gödel's proof has also been questioned by Graham Oppy, asking whether many other almost-gods would also be "proven" through Gödel's axioms. This counter-argument has been questioned by Gettings, who agrees that the axioms might be questioned, but disagrees that Oppy's particular counter-example can be shown from Gödel's axioms. Religious scholar Fr. Robert J. Spitzer accepted Gödel's proof, calling it "an improvement over the Anselmian Ontological Argument (which does not work)." There are, however, many more criticisms, most focusing on the question of whether these axioms must be rejected to avoid odd conclusions. The broader criticism is that even if the axioms cannot be shown to be false, that does not mean that they are true. Hilbert's famous remark about interchangeability of the primitives' names applies to those in Gödel's ontological axioms ("positive", "god-like", "essence") as well as to those in Hilbert's geometry axioms ("point", "line", "plane"). According to André Fuhrmann (2005) it remains to show that the dazzling notion prescribed by traditions and often believed to be essentially mysterious satisfies Gödel's axioms. This is not a mathematical, but a theological task. It is this task which decides which religion's god has been proven to exist. Christoph Benzmüller and Bruno Woltzenlogel-Paleo formalized Gödel's proof to a level that is suitable for automated theorem proving or at least computer verification via proof assistants. The effort made headlines in German newspapers. According to the authors of this effort, they were inspired by Melvin Fitting's book. In 2014, they computer-verified Gödel's proof (in the above version). They also proved that this version's axioms are consistent, but imply modal collapse, thus confirming Sobel's 1987 argument. In the same paper, they suspected Gödel's original version of the axioms to be inconsistent, as they failed to prove their consistency. In 2016, they gave a computer proof that the original version implies ◊ ◻ ⊥ {\displaystyle \Diamond \Box \bot } , i.e., is inconsistent in every modal logic with a reflexive or symmetric accessibility relation. Moreover, they gave an argument that this version is inconsistent in every logic at all, but failed to duplicate it by automated provers. However, they were able to verify Melvin Fitting's reformulation of the argument and guarantee its consistency. A humorous variant of Gödel's ontological proof is mentioned in Quentin Canterel's novel The Jolly Coroner. The proof is also mentioned in the TV series Hand of God. Jeffrey Kegler's 2007 novel The God Proof depicts the (fictional) rediscovery of Gödel's lost notebook about the ontological proof.
[ { "paragraph_id": 0, "text": "Gödel's ontological proof is a formal argument by the mathematician Kurt Gödel (1906–1978) for the existence of God. The argument is in a line of development that goes back to Anselm of Canterbury (1033–1109). St. Anselm's ontological argument, in its most succinct form, is as follows: \"God, by definition, is that for which no greater can be conceived. God exists in the understanding. If God exists in the understanding, we could imagine Him to be greater by existing in reality. Therefore, God must exist.\" A more elaborate version was given by Gottfried Leibniz (1646–1716); this is the version that Gödel studied and attempted to clarify with his ontological argument.", "title": "" }, { "paragraph_id": 1, "text": "Gödel left a fourteen-point outline of his philosophical beliefs in his papers. Points relevant to the ontological proof include:", "title": "" }, { "paragraph_id": 2, "text": "The first version of the ontological proof in Gödel's papers is dated \"around 1941\". Gödel is not known to have told anyone about his work on the proof until 1970, when he thought he was dying. In February, he allowed Dana Scott to copy out a version of the proof, which circulated privately. In August 1970, Gödel told Oskar Morgenstern that he was \"satisfied\" with the proof, but Morgenstern recorded in his diary entry for 29 August 1970, that Gödel would not publish because he was afraid that others might think \"that he actually believes in God, whereas he is only engaged in a logical investigation (that is, in showing that such a proof with classical assumptions (completeness, etc.) correspondingly axiomatized, is possible).\" Gödel died January 14, 1978. Another version, slightly different from Scott's, was found in his papers. It was finally published, together with Scott's version, in 1987.", "title": "History" }, { "paragraph_id": 3, "text": "In letters to his mother, who was not a churchgoer and had raised Kurt and his brother as freethinkers, Gödel argued at length for a belief in an afterlife. He did the same in an interview with a skeptical Hao Wang, who said: \"I expressed my doubts as G spoke [...] Gödel smiled as he replied to my questions, obviously aware that his answers were not convincing me.\" Wang reports that Gödel's wife, Adele, two days after Gödel's death, told Wang that \"Gödel, although he did not go to church, was religious and read the Bible in bed every Sunday morning.\" In an unmailed answer to a questionnaire, Gödel described his religion as \"baptized Lutheran (but not member of any religious congregation). My belief is theistic, not pantheistic, following Leibniz rather than Spinoza.\"", "title": "History" }, { "paragraph_id": 4, "text": "The proof uses modal logic, which distinguishes between necessary truths and contingent truths. In the most common semantics for modal logic, many \"possible worlds\" are considered. A truth is necessary if it is true in all possible worlds. By contrast, if a statement happens to be true in our world, but is false in another world, then it is a contingent truth. A statement that is true in some world (not necessarily our own) is called a possible truth.", "title": "Outline" }, { "paragraph_id": 5, "text": "Furthermore, the proof uses higher-order (modal) logic because the definition of God employs an explicit quantification over properties.", "title": "Outline" }, { "paragraph_id": 6, "text": "First, Gödel axiomatizes the notion of a \"positive property\": for each property φ, either φ or its negation ¬φ must be positive, but not both (axiom 2). If a positive property φ implies a property ψ in each possible world, then ψ is positive, too (axiom 1). Gödel then argues that each positive property is \"possibly exemplified\", i.e. applies at least to some object in some world (theorem 1). Defining an object to be Godlike if it has all positive properties (definition 1), and requiring that property to be positive itself (axiom 3), Gödel shows that in some possible world a Godlike object exists (theorem 2), called \"God\" in the following. Gödel proceeds to prove that a Godlike object exists in every possible world.", "title": "Outline" }, { "paragraph_id": 7, "text": "To this end, he defines essences: if x is an object in some world, then a property φ is said to be an essence of x if φ(x) is true in that world and if φ necessarily entails all other properties that x has in that world (definition 2). Requiring positive properties being positive in every possible world (axiom 4), Gödel can show that Godlikeness is an essence of a Godlike object (theorem 3). Now, x is said to exist necessarily if, for every essence φ of x, there is an element y with property φ in every possible world (definition 3). Axiom 5 requires necessary existence to be a positive property.", "title": "Outline" }, { "paragraph_id": 8, "text": "Hence, it must follow from Godlikeness. Moreover, Godlikeness is an essence of God, since it entails all positive properties, and any non-positive property is the negation of some positive property, so God cannot have any non-positive properties. Since necessary existence is also a positive property (axiom 5), it must be a property of every Godlike object, as every Godlike object has all the positive properties (definition 1). Since any Godlike object is necessarily existent, it follows that any Godlike object in one world is a Godlike object in all worlds, by the definition of necessary existence. Given the existence of a Godlike object in one world, proven above, we may conclude that there is a Godlike object in every possible world, as required (theorem 4). Besides axiom 1-5 and definition 1-3, a few other axioms from modal logic were tacitly used in the proof.", "title": "Outline" }, { "paragraph_id": 9, "text": "From these hypotheses, it is also possible to prove that there is only one God in each world by Leibniz's law, the identity of indiscernibles: two or more objects are identical (the same) if they have all their properties in common, and so, there would only be one object in each world that possesses property G. Gödel did not attempt to do so however, as he purposely limited his proof to the issue of existence, rather than uniqueness.", "title": "Outline" }, { "paragraph_id": 10, "text": "Ax. 1. ( P ( φ ) ∧ ◻ ∀ x ( φ ( x ) ⇒ ψ ( x ) ) ) ⇒ P ( ψ ) Ax. 2. P ( ¬ φ ) ⇔ ¬ P ( φ ) Th. 1. P ( φ ) ⇒ ◊ ∃ x φ ( x ) Df. 1. G ( x ) ⇔ ∀ φ ( P ( φ ) ⇒ φ ( x ) ) Ax. 3. P ( G ) Th. 2. ◊ ∃ x G ( x ) Df. 2. φ ess x ⇔ φ ( x ) ∧ ∀ ψ ( ψ ( x ) ⇒ ◻ ∀ y ( φ ( y ) ⇒ ψ ( y ) ) ) Ax. 4. P ( φ ) ⇒ ◻ P ( φ ) Th. 3. G ( x ) ⇒ G ess x Df. 3. E ( x ) ⇔ ∀ φ ( φ ess x ⇒ ◻ ∃ y φ ( y ) ) Ax. 5. P ( E ) Th. 4. ◻ ∃ x G ( x ) {\\displaystyle {\\begin{array}{rl}{\\text{Ax. 1.}}&\\left(P(\\varphi )\\;\\wedge \\;\\Box \\;\\forall x(\\varphi (x)\\Rightarrow \\psi (x))\\right)\\;\\Rightarrow \\;P(\\psi )\\\\{\\text{Ax. 2.}}&P(\\neg \\varphi )\\;\\Leftrightarrow \\;\\neg P(\\varphi )\\\\{\\text{Th. 1.}}&P(\\varphi )\\;\\Rightarrow \\;\\Diamond \\;\\exists x\\;\\varphi (x)\\\\{\\text{Df. 1.}}&G(x)\\;\\Leftrightarrow \\;\\forall \\varphi (P(\\varphi )\\Rightarrow \\varphi (x))\\\\{\\text{Ax. 3.}}&P(G)\\\\{\\text{Th. 2.}}&\\Diamond \\;\\exists x\\;G(x)\\\\{\\text{Df. 2.}}&\\varphi {\\text{ ess }}x\\;\\Leftrightarrow \\;\\varphi (x)\\wedge \\forall \\psi \\left(\\psi (x)\\Rightarrow \\Box \\;\\forall y(\\varphi (y)\\Rightarrow \\psi (y))\\right)\\\\{\\text{Ax. 4.}}&P(\\varphi )\\;\\Rightarrow \\;\\Box \\;P(\\varphi )\\\\{\\text{Th. 3.}}&G(x)\\;\\Rightarrow \\;G{\\text{ ess }}x\\\\{\\text{Df. 3.}}&E(x)\\;\\Leftrightarrow \\;\\forall \\varphi (\\varphi {\\text{ ess }}x\\Rightarrow \\Box \\;\\exists y\\;\\varphi (y))\\\\{\\text{Ax. 5.}}&P(E)\\\\{\\text{Th. 4.}}&\\Box \\;\\exists x\\;G(x)\\end{array}}}", "title": "Outline" }, { "paragraph_id": 11, "text": "Most criticism of Gödel's proof is aimed at its axioms: as with any proof in any logical system, if the axioms the proof depends on are doubted, then the conclusions can be doubted. It is particularly applicable to Gödel's proof – because it rests on five axioms, some of which are considered questionable. A proof does not necessitate that the conclusion be correct, but rather that by accepting the axioms, the conclusion follows logically.", "title": "Criticism" }, { "paragraph_id": 12, "text": "Many philosophers have called the axioms into question. The first layer of criticism is simply that there are no arguments presented that give reasons why the axioms are true. A second layer is that these particular axioms lead to unwelcome conclusions. This line of thought was argued by Jordan Howard Sobel, showing that if the axioms are accepted, they lead to a \"modal collapse\" where every statement that is true is necessarily true, i.e. the sets of necessary, of contingent, and of possible truths all coincide (provided there are accessible worlds at all). According to Robert Koons, Sobel suggested in a 2005 conference paper that Gödel might have welcomed modal collapse.", "title": "Criticism" }, { "paragraph_id": 13, "text": "There are suggested amendments to the proof, presented by C. Anthony Anderson, but argued to be refutable by Anderson and Michael Gettings. Sobel's proof of modal collapse has been questioned by Koons, but a counter-defence by Sobel has been given.", "title": "Criticism" }, { "paragraph_id": 14, "text": "Gödel's proof has also been questioned by Graham Oppy, asking whether many other almost-gods would also be \"proven\" through Gödel's axioms. This counter-argument has been questioned by Gettings, who agrees that the axioms might be questioned, but disagrees that Oppy's particular counter-example can be shown from Gödel's axioms.", "title": "Criticism" }, { "paragraph_id": 15, "text": "Religious scholar Fr. Robert J. Spitzer accepted Gödel's proof, calling it \"an improvement over the Anselmian Ontological Argument (which does not work).\"", "title": "Criticism" }, { "paragraph_id": 16, "text": "There are, however, many more criticisms, most focusing on the question of whether these axioms must be rejected to avoid odd conclusions. The broader criticism is that even if the axioms cannot be shown to be false, that does not mean that they are true. Hilbert's famous remark about interchangeability of the primitives' names applies to those in Gödel's ontological axioms (\"positive\", \"god-like\", \"essence\") as well as to those in Hilbert's geometry axioms (\"point\", \"line\", \"plane\"). According to André Fuhrmann (2005) it remains to show that the dazzling notion prescribed by traditions and often believed to be essentially mysterious satisfies Gödel's axioms. This is not a mathematical, but a theological task. It is this task which decides which religion's god has been proven to exist.", "title": "Criticism" }, { "paragraph_id": 17, "text": "Christoph Benzmüller and Bruno Woltzenlogel-Paleo formalized Gödel's proof to a level that is suitable for automated theorem proving or at least computer verification via proof assistants. The effort made headlines in German newspapers. According to the authors of this effort, they were inspired by Melvin Fitting's book.", "title": "Computer-verified versions" }, { "paragraph_id": 18, "text": "In 2014, they computer-verified Gödel's proof (in the above version). They also proved that this version's axioms are consistent, but imply modal collapse, thus confirming Sobel's 1987 argument. In the same paper, they suspected Gödel's original version of the axioms to be inconsistent, as they failed to prove their consistency.", "title": "Computer-verified versions" }, { "paragraph_id": 19, "text": "In 2016, they gave a computer proof that the original version implies ◊ ◻ ⊥ {\\displaystyle \\Diamond \\Box \\bot } , i.e., is inconsistent in every modal logic with a reflexive or symmetric accessibility relation. Moreover, they gave an argument that this version is inconsistent in every logic at all, but failed to duplicate it by automated provers. However, they were able to verify Melvin Fitting's reformulation of the argument and guarantee its consistency.", "title": "Computer-verified versions" }, { "paragraph_id": 20, "text": "A humorous variant of Gödel's ontological proof is mentioned in Quentin Canterel's novel The Jolly Coroner. The proof is also mentioned in the TV series Hand of God.", "title": "In literature" }, { "paragraph_id": 21, "text": "Jeffrey Kegler's 2007 novel The God Proof depicts the (fictional) rediscovery of Gödel's lost notebook about the ontological proof.", "title": "In literature" } ]
Gödel's ontological proof is a formal argument by the mathematician Kurt Gödel (1906–1978) for the existence of God. The argument is in a line of development that goes back to Anselm of Canterbury (1033–1109). St. Anselm's ontological argument, in its most succinct form, is as follows: "God, by definition, is that for which no greater can be conceived. God exists in the understanding. If God exists in the understanding, we could imagine Him to be greater by existing in reality. Therefore, God must exist." A more elaborate version was given by Gottfried Leibniz (1646–1716); this is the version that Gödel studied and attempted to clarify with his ontological argument. Gödel left a fourteen-point outline of his philosophical beliefs in his papers. Points relevant to the ontological proof include:
2001-10-20T14:55:50Z
2023-12-12T07:55:25Z
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https://en.wikipedia.org/wiki/G%C3%B6del%27s_ontological_proof
12,422
List of gymnasts
Gymnasts are people who participate in the sport of gymnastics. This sport contains disciplines that include, but are not limited to: This list is of those who are considered to be notable in their chosen discipline. See gymnasium (ancient Greece) for the origin of the word gymnast from gymnastikos.
[ { "paragraph_id": 0, "text": "Gymnasts are people who participate in the sport of gymnastics. This sport contains disciplines that include, but are not limited to:", "title": "" }, { "paragraph_id": 1, "text": "This list is of those who are considered to be notable in their chosen discipline.", "title": "" }, { "paragraph_id": 2, "text": "See gymnasium (ancient Greece) for the origin of the word gymnast from gymnastikos.", "title": "" } ]
Gymnasts are people who participate in the sport of gymnastics. This sport contains disciplines that include, but are not limited to: This list is of those who are considered to be notable in their chosen discipline. See gymnasium for the origin of the word gymnast from gymnastikos.
2001-08-05T08:06:03Z
2023-12-31T22:12:24Z
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https://en.wikipedia.org/wiki/List_of_gymnasts
12,424
Genetic programming
In artificial intelligence, genetic programming (GP) is a technique of evolving programs, starting from a population of unfit (usually random) programs, fit for a particular task by applying operations analogous to natural genetic processes to the population of programs. The operations are: selection of the fittest programs for reproduction (crossover), replication and/or mutation according to a predefined fitness measure, usually proficiency at the desired task. The crossover operation involves swapping specified parts of selected pairs (parents) to produce new and different offspring that become part of the new generation of programs. Some programs not selected for reproduction are copied from the current generation to the new generation. Mutation involves substitution of some random part of a program with some other random part of a program. Then the selection and other operations are recursively applied to the new generation of programs. Typically, members of each new generation are on average more fit than the members of the previous generation, and the best-of-generation program is often better than the best-of-generation programs from previous generations. Termination of the evolution usually occurs when some individual program reaches a predefined proficiency or fitness level. It may and often does happen that a particular run of the algorithm results in premature convergence to some local maximum which is not a globally optimal or even good solution. Multiple runs (dozens to hundreds) are usually necessary to produce a very good result. It may also be necessary to have a large starting population size and variability of the individuals to avoid pathologies. The first record of the proposal to evolve programs is probably that of Alan Turing in 1950. There was a gap of 25 years before the publication of John Holland's 'Adaptation in Natural and Artificial Systems' laid out the theoretical and empirical foundations of the science. In 1981, Richard Forsyth demonstrated the successful evolution of small programs, represented as trees, to perform classification of crime scene evidence for the UK Home Office. Although the idea of evolving programs, initially in the computer language Lisp, was current amongst John Holland’s students, it was not until they organised the first Genetic Algorithms (GA) conference in Pittsburgh that Nichael Cramer published evolved programs in two specially designed languages, which included the first statement of modern "tree-based" Genetic Programming (that is, procedural languages organized in tree-based structures and operated on by suitably defined GA-operators). In 1988, John Koza (also a PhD student of John Holland) patented his invention of a GA for program evolution. This was followed by publication in the International Joint Conference on Artificial Intelligence IJCAI-89. Koza followed this with 205 publications on “Genetic Programming” (GP), name coined by David Goldberg, also a PhD student of John Holland. However, it is the series of 4 books by Koza, starting in 1992 with accompanying videos, that really established GP. Subsequently, there was an enormous expansion of the number of publications with the Genetic Programming Bibliography, surpassing 10,000 entries. In 2010, Koza listed 77 results where Genetic Programming was human competitive. In 1996, Koza started the annual Genetic Programming conference which was followed in 1998 by the annual EuroGP conference, and the first book in a GP series edited by Koza. 1998 also saw the first GP textbook. GP continued to flourish, leading to the first specialist GP journal and three years later (2003) the annual Genetic Programming Theory and Practice (GPTP) workshop was established by Rick Riolo. Genetic Programming papers continue to be published at a diversity of conferences and associated journals. Today there are nineteen GP books including several for students. Early work that set the stage for current genetic programming research topics and applications is diverse, and includes software synthesis and repair, predictive modeling, data mining, financial modeling, soft sensors, design, and image processing. Applications in some areas, such as design, often make use of intermediate representations, such as Fred Gruau’s cellular encoding. Industrial uptake has been significant in several areas including finance, the chemical industry, bioinformatics and the steel industry. GP evolves computer programs, traditionally represented in memory as tree structures. Trees can be easily evaluated in a recursive manner. Every internal node has an operator function and every terminal node has an operand, making mathematical expressions easy to evolve and evaluate. Thus traditionally GP favors the use of programming languages that naturally embody tree structures (for example, Lisp; other functional programming languages are also suitable). Non-tree representations have been suggested and successfully implemented, such as linear genetic programming which perhaps suits the more traditional imperative languages. The commercial GP software Discipulus uses automatic induction of binary machine code ("AIM") to achieve better performance. µGP uses directed multigraphs to generate programs that fully exploit the syntax of a given assembly language. Multi expression programming uses Three-address code for encoding solutions. Other program representations on which significant research and development have been conducted include programs for stack-based virtual machines, and sequences of integers that are mapped to arbitrary programming languages via grammars. Cartesian genetic programming is another form of GP, which uses a graph representation instead of the usual tree based representation to encode computer programs. Most representations have structurally noneffective code (introns). Such non-coding genes may seem to be useless because they have no effect on the performance of any one individual. However, they alter the probabilities of generating different offspring under the variation operators, and thus alter the individual's variational properties. Experiments seem to show faster convergence when using program representations that allow such non-coding genes, compared to program representations that do not have any non-coding genes. Instantiations may have both trees with introns and those without; the latter are called canonical trees. Special canonical crossover operators are introduced that maintain the canonical structure of parents in their children. Selection is a process whereby certain individuals are selected from the current generation that would serve as parents for the next generation. The individuals are selected probabilistically such that the better performing individuals have a higher chance of getting selected. The most commonly used selection method in GP is tournament selection, although other methods such as fitness proportionate selection, lexicase selection, and others have been demonstrated to perform better for many GP problems. Elitism, which involves seeding the next generation with the best individual (or best n individuals) from the current generation, is a technique sometimes employed to avoid regression. In Genetic Programming two fit individuals are chosen from the population to be parents for one or two children. In tree genetic programming, these parents are represented as inverted lisp like trees, with their root nodes at the top. In subtree crossover in each parent a subtree is randomly chosen. (Highlighted with yellow in the animation.) In the root donating parent (in the animation on the left) the chosen subtree is removed and replaced with a copy of the randomly chosen subtree from the other parent, to give a new child tree. Sometimes two child crossover is used, in which case the removed subtree (in the animation on the left) is not simply deleted but is copied to a copy of the second parent (here on the right) replacing (in the copy) its randomly chosen subtree. Thus this type of subtree crossover takes two fit trees and generates two child trees. Some individuals selected according to fitness criteria do not participate in crossover, but are copied into the next generation, akin to asexual reproduction in the natural world. They may be further subject to mutation. There are many types of mutation in genetic programming. They start from a fit syntactically correct parent and aim to randomly create a syntactically correct child. In the animation a subtree is randomly chosen (highlighted by yellow). It is removed and replaced by a randomly generated subtree. Other mutation operators select a leaf (external node) of the tree and replace it with a randomly chosen leaf. Another mutation is to select at random a function (internal node) and replace it with another function with the same arity (number of inputs). Hoist mutation randomly chooses a subtree and replaces it with a subtree within itself. Thus hoist mutation is guaranteed to make the child smaller. Leaf and same arity function replacement ensure the child is the same size as the parent. Whereas subtree mutation (in the animation) may, depending upon the function and terminal sets, have a bias to either increase or decrease the tree size. Other subtree based mutations try to carefully control the size of the replacement subtree and thus the size of the child tree. Similarly there are many types of linear genetic programming mutation, each of which tries to ensure the mutated child is still syntactically correct. GP has been successfully used as an automatic programming tool, a machine learning tool and an automatic problem-solving engine. GP is especially useful in the domains where the exact form of the solution is not known in advance or an approximate solution is acceptable (possibly because finding the exact solution is very difficult). Some of the applications of GP are curve fitting, data modeling, symbolic regression, feature selection, classification, etc. John R. Koza mentions 76 instances where Genetic Programming has been able to produce results that are competitive with human-produced results (called Human-competitive results). Since 2004, the annual Genetic and Evolutionary Computation Conference (GECCO) holds Human Competitive Awards (called Humies) competition, where cash awards are presented to human-competitive results produced by any form of genetic and evolutionary computation. GP has won many awards in this competition over the years. Meta-genetic programming is the proposed meta-learning technique of evolving a genetic programming system using genetic programming itself. It suggests that chromosomes, crossover, and mutation were themselves evolved, therefore like their real life counterparts should be allowed to change on their own rather than being determined by a human programmer. Meta-GP was formally proposed by Jürgen Schmidhuber in 1987. Doug Lenat's Eurisko is an earlier effort that may be the same technique. It is a recursive but terminating algorithm, allowing it to avoid infinite recursion. In the "autoconstructive evolution" approach to meta-genetic programming, the methods for the production and variation of offspring are encoded within the evolving programs themselves, and programs are executed to produce new programs to be added to the population. Critics of this idea often say this approach is overly broad in scope. However, it might be possible to constrain the fitness criterion onto a general class of results, and so obtain an evolved GP that would more efficiently produce results for sub-classes. This might take the form of a meta evolved GP for producing human walking algorithms which is then used to evolve human running, jumping, etc. The fitness criterion applied to the meta GP would simply be one of efficiency.
[ { "paragraph_id": 0, "text": "In artificial intelligence, genetic programming (GP) is a technique of evolving programs, starting from a population of unfit (usually random) programs, fit for a particular task by applying operations analogous to natural genetic processes to the population of programs.", "title": "" }, { "paragraph_id": 1, "text": "The operations are: selection of the fittest programs for reproduction (crossover), replication and/or mutation according to a predefined fitness measure, usually proficiency at the desired task. The crossover operation involves swapping specified parts of selected pairs (parents) to produce new and different offspring that become part of the new generation of programs. Some programs not selected for reproduction are copied from the current generation to the new generation. Mutation involves substitution of some random part of a program with some other random part of a program. Then the selection and other operations are recursively applied to the new generation of programs.", "title": "" }, { "paragraph_id": 2, "text": "Typically, members of each new generation are on average more fit than the members of the previous generation, and the best-of-generation program is often better than the best-of-generation programs from previous generations. Termination of the evolution usually occurs when some individual program reaches a predefined proficiency or fitness level.", "title": "" }, { "paragraph_id": 3, "text": "It may and often does happen that a particular run of the algorithm results in premature convergence to some local maximum which is not a globally optimal or even good solution. Multiple runs (dozens to hundreds) are usually necessary to produce a very good result. It may also be necessary to have a large starting population size and variability of the individuals to avoid pathologies.", "title": "" }, { "paragraph_id": 4, "text": "The first record of the proposal to evolve programs is probably that of Alan Turing in 1950. There was a gap of 25 years before the publication of John Holland's 'Adaptation in Natural and Artificial Systems' laid out the theoretical and empirical foundations of the science. In 1981, Richard Forsyth demonstrated the successful evolution of small programs, represented as trees, to perform classification of crime scene evidence for the UK Home Office.", "title": "History" }, { "paragraph_id": 5, "text": "Although the idea of evolving programs, initially in the computer language Lisp, was current amongst John Holland’s students, it was not until they organised the first Genetic Algorithms (GA) conference in Pittsburgh that Nichael Cramer published evolved programs in two specially designed languages, which included the first statement of modern \"tree-based\" Genetic Programming (that is, procedural languages organized in tree-based structures and operated on by suitably defined GA-operators). In 1988, John Koza (also a PhD student of John Holland) patented his invention of a GA for program evolution. This was followed by publication in the International Joint Conference on Artificial Intelligence IJCAI-89.", "title": "History" }, { "paragraph_id": 6, "text": "Koza followed this with 205 publications on “Genetic Programming” (GP), name coined by David Goldberg, also a PhD student of John Holland. However, it is the series of 4 books by Koza, starting in 1992 with accompanying videos, that really established GP. Subsequently, there was an enormous expansion of the number of publications with the Genetic Programming Bibliography, surpassing 10,000 entries. In 2010, Koza listed 77 results where Genetic Programming was human competitive.", "title": "History" }, { "paragraph_id": 7, "text": "In 1996, Koza started the annual Genetic Programming conference which was followed in 1998 by the annual EuroGP conference, and the first book in a GP series edited by Koza. 1998 also saw the first GP textbook. GP continued to flourish, leading to the first specialist GP journal and three years later (2003) the annual Genetic Programming Theory and Practice (GPTP) workshop was established by Rick Riolo. Genetic Programming papers continue to be published at a diversity of conferences and associated journals. Today there are nineteen GP books including several for students.", "title": "History" }, { "paragraph_id": 8, "text": "Early work that set the stage for current genetic programming research topics and applications is diverse, and includes software synthesis and repair, predictive modeling, data mining, financial modeling, soft sensors, design, and image processing. Applications in some areas, such as design, often make use of intermediate representations, such as Fred Gruau’s cellular encoding. Industrial uptake has been significant in several areas including finance, the chemical industry, bioinformatics and the steel industry.", "title": "History" }, { "paragraph_id": 9, "text": "GP evolves computer programs, traditionally represented in memory as tree structures. Trees can be easily evaluated in a recursive manner. Every internal node has an operator function and every terminal node has an operand, making mathematical expressions easy to evolve and evaluate. Thus traditionally GP favors the use of programming languages that naturally embody tree structures (for example, Lisp; other functional programming languages are also suitable).", "title": "Methods" }, { "paragraph_id": 10, "text": "Non-tree representations have been suggested and successfully implemented, such as linear genetic programming which perhaps suits the more traditional imperative languages. The commercial GP software Discipulus uses automatic induction of binary machine code (\"AIM\") to achieve better performance. µGP uses directed multigraphs to generate programs that fully exploit the syntax of a given assembly language. Multi expression programming uses Three-address code for encoding solutions. Other program representations on which significant research and development have been conducted include programs for stack-based virtual machines, and sequences of integers that are mapped to arbitrary programming languages via grammars. Cartesian genetic programming is another form of GP, which uses a graph representation instead of the usual tree based representation to encode computer programs.", "title": "Methods" }, { "paragraph_id": 11, "text": "Most representations have structurally noneffective code (introns). Such non-coding genes may seem to be useless because they have no effect on the performance of any one individual. However, they alter the probabilities of generating different offspring under the variation operators, and thus alter the individual's variational properties. Experiments seem to show faster convergence when using program representations that allow such non-coding genes, compared to program representations that do not have any non-coding genes. Instantiations may have both trees with introns and those without; the latter are called canonical trees. Special canonical crossover operators are introduced that maintain the canonical structure of parents in their children.", "title": "Methods" }, { "paragraph_id": 12, "text": "Selection is a process whereby certain individuals are selected from the current generation that would serve as parents for the next generation. The individuals are selected probabilistically such that the better performing individuals have a higher chance of getting selected. The most commonly used selection method in GP is tournament selection, although other methods such as fitness proportionate selection, lexicase selection, and others have been demonstrated to perform better for many GP problems.", "title": "Methods" }, { "paragraph_id": 13, "text": "Elitism, which involves seeding the next generation with the best individual (or best n individuals) from the current generation, is a technique sometimes employed to avoid regression.", "title": "Methods" }, { "paragraph_id": 14, "text": "In Genetic Programming two fit individuals are chosen from the population to be parents for one or two children. In tree genetic programming, these parents are represented as inverted lisp like trees, with their root nodes at the top. In subtree crossover in each parent a subtree is randomly chosen. (Highlighted with yellow in the animation.) In the root donating parent (in the animation on the left) the chosen subtree is removed and replaced with a copy of the randomly chosen subtree from the other parent, to give a new child tree.", "title": "Methods" }, { "paragraph_id": 15, "text": "Sometimes two child crossover is used, in which case the removed subtree (in the animation on the left) is not simply deleted but is copied to a copy of the second parent (here on the right) replacing (in the copy) its randomly chosen subtree. Thus this type of subtree crossover takes two fit trees and generates two child trees.", "title": "Methods" }, { "paragraph_id": 16, "text": "Some individuals selected according to fitness criteria do not participate in crossover, but are copied into the next generation, akin to asexual reproduction in the natural world. They may be further subject to mutation.", "title": "Methods" }, { "paragraph_id": 17, "text": "There are many types of mutation in genetic programming. They start from a fit syntactically correct parent and aim to randomly create a syntactically correct child. In the animation a subtree is randomly chosen (highlighted by yellow). It is removed and replaced by a randomly generated subtree.", "title": "Methods" }, { "paragraph_id": 18, "text": "Other mutation operators select a leaf (external node) of the tree and replace it with a randomly chosen leaf. Another mutation is to select at random a function (internal node) and replace it with another function with the same arity (number of inputs). Hoist mutation randomly chooses a subtree and replaces it with a subtree within itself. Thus hoist mutation is guaranteed to make the child smaller. Leaf and same arity function replacement ensure the child is the same size as the parent. Whereas subtree mutation (in the animation) may, depending upon the function and terminal sets, have a bias to either increase or decrease the tree size. Other subtree based mutations try to carefully control the size of the replacement subtree and thus the size of the child tree.", "title": "Methods" }, { "paragraph_id": 19, "text": "Similarly there are many types of linear genetic programming mutation, each of which tries to ensure the mutated child is still syntactically correct.", "title": "Methods" }, { "paragraph_id": 20, "text": "GP has been successfully used as an automatic programming tool, a machine learning tool and an automatic problem-solving engine. GP is especially useful in the domains where the exact form of the solution is not known in advance or an approximate solution is acceptable (possibly because finding the exact solution is very difficult). Some of the applications of GP are curve fitting, data modeling, symbolic regression, feature selection, classification, etc. John R. Koza mentions 76 instances where Genetic Programming has been able to produce results that are competitive with human-produced results (called Human-competitive results). Since 2004, the annual Genetic and Evolutionary Computation Conference (GECCO) holds Human Competitive Awards (called Humies) competition, where cash awards are presented to human-competitive results produced by any form of genetic and evolutionary computation. GP has won many awards in this competition over the years.", "title": "Applications" }, { "paragraph_id": 21, "text": "Meta-genetic programming is the proposed meta-learning technique of evolving a genetic programming system using genetic programming itself. It suggests that chromosomes, crossover, and mutation were themselves evolved, therefore like their real life counterparts should be allowed to change on their own rather than being determined by a human programmer. Meta-GP was formally proposed by Jürgen Schmidhuber in 1987. Doug Lenat's Eurisko is an earlier effort that may be the same technique. It is a recursive but terminating algorithm, allowing it to avoid infinite recursion. In the \"autoconstructive evolution\" approach to meta-genetic programming, the methods for the production and variation of offspring are encoded within the evolving programs themselves, and programs are executed to produce new programs to be added to the population.", "title": "Meta-genetic programming" }, { "paragraph_id": 22, "text": "Critics of this idea often say this approach is overly broad in scope. However, it might be possible to constrain the fitness criterion onto a general class of results, and so obtain an evolved GP that would more efficiently produce results for sub-classes. This might take the form of a meta evolved GP for producing human walking algorithms which is then used to evolve human running, jumping, etc. The fitness criterion applied to the meta GP would simply be one of efficiency.", "title": "Meta-genetic programming" } ]
In artificial intelligence, genetic programming (GP) is a technique of evolving programs, starting from a population of unfit programs, fit for a particular task by applying operations analogous to natural genetic processes to the population of programs. The operations are: selection of the fittest programs for reproduction (crossover), replication and/or mutation according to a predefined fitness measure, usually proficiency at the desired task. The crossover operation involves swapping specified parts of selected pairs (parents) to produce new and different offspring that become part of the new generation of programs. Some programs not selected for reproduction are copied from the current generation to the new generation. Mutation involves substitution of some random part of a program with some other random part of a program. Then the selection and other operations are recursively applied to the new generation of programs. Typically, members of each new generation are on average more fit than the members of the previous generation, and the best-of-generation program is often better than the best-of-generation programs from previous generations. Termination of the evolution usually occurs when some individual program reaches a predefined proficiency or fitness level. It may and often does happen that a particular run of the algorithm results in premature convergence to some local maximum which is not a globally optimal or even good solution. Multiple runs are usually necessary to produce a very good result. It may also be necessary to have a large starting population size and variability of the individuals to avoid pathologies.
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https://en.wikipedia.org/wiki/Genetic_programming
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Gustav Klimt
Gustav Klimt (14 July 1862 – 6 February 1918) was an Austrian symbolist painter and one of the most prominent members of the Vienna Secession movement. Klimt is noted for his paintings, murals, sketches, and other objets d'art. Klimt's primary subject was the female body, and his works are marked by a frank eroticism. Amongst his figurative works, which include allegories and portraits, he painted landscapes. Among the artists of the Vienna Secession, Klimt was the most influenced by Japanese art and its methods. Early in his career, he was a successful painter of architectural decorations in a conventional manner. As he began to develop a more personal style, his work was the subject of controversy that culminated when the paintings he completed around 1900 for the ceiling of the Great Hall of the University of Vienna were criticized as pornographic. He subsequently accepted no more public commissions, but achieved a new success with the paintings of his "golden phase", many of which include gold leaf. Klimt's work was an important influence on his younger peer Egon Schiele. Since the 1990s, he has been one of the artists whose paintings fetch top prices at auctions. Gustav Klimt was born in Baumgarten, near Vienna in the Austrian Empire, the second of seven children—three boys and four girls. His mother, Anna Klimt (née Finster), had an unrealized ambition to be a musical performer. His father, Ernst Klimt the Elder, formerly from Bohemia, was a gold engraver. All three of their sons displayed artistic talent early on. Klimt's younger brothers were Ernst Klimt and Georg Klimt [de]. Klimt lived in poverty while attending the Vienna Kunstgewerbeschule, a school of applied arts and crafts, now the University of Applied Arts Vienna, where he studied architectural painting from 1876 until 1883. He revered Vienna's foremost history painter of the time, Hans Makart. Klimt readily accepted the principles of a conservative training; his early work may be classified as academic. In 1877 his brother, Ernst, who, like his father, would become an engraver, also enrolled in the school. The two brothers and their friend, Franz Matsch, began working together and by 1880 they had received numerous commissions as a team that they called the "Company of Artists". They also helped their teacher in painting murals in the Kunsthistorisches Museum in Vienna. Klimt began his professional career painting interior murals and ceilings in large public buildings on the Ringstraße, including a successful series of "Allegories and Emblems". In 1888 Klimt received the Golden Order of Merit from Emperor Franz Josef I of Austria for his contributions to murals painted in the Burgtheater in Vienna. He also became an honorary member of the University of Munich and the University of Vienna. In 1892 Klimt's father and brother Ernst both died, and he had to assume financial responsibility for his father's and brother's families. The tragedies also affected his artistic vision and soon he would move towards a new personal style. Characteristic of his style at the end of the 19th century is the inclusion of Nuda Veritas (naked truth) as a symbolic figure in some of his works, including Ancient Greece and Egypt (1891), Pallas Athene (1898) and Nuda Veritas (1899). Historians believe that Klimt with the nuda veritas denounced both the policy of the Habsburgs and Austrian society, which ignored all political and social problems of that time. In the early 1890s Klimt met Austrian fashion designer Emilie Louise Flöge (a sibling of his sister-in-law) who was to be his companion until the end of his life. His painting, The Kiss (1907–08), is thought to be an image of them as lovers which was painted five years after Klimt's 1902 full-length portrait of her. He designed many costumes that she produced and modeled in his works. During this period Klimt fathered at least fourteen children. Klimt became one of the founding members and president of the Wiener Secession in 1897 and of the group's periodical, Ver Sacrum ("Sacred Spring"). He remained with the Secession until 1908. The goals of the group were to provide exhibitions for unconventional young artists, to bring the works of the best foreign artists to Vienna, and to publish its own magazine to showcase the work of members. The group declared no manifesto and did not set out to encourage any particular style—Naturalists, Realists, and Symbolists all coexisted. The government supported their efforts and gave them a lease on public land to erect an exhibition hall. The group's symbol was Pallas Athena, the Greek goddess of just causes, wisdom, and the arts—of whom Klimt painted his radical version in 1898. In 1894, Klimt was commissioned to create three paintings to decorate the ceiling of the Great Hall of the University of Vienna. Not completed until the turn of the century, his three paintings, Philosophy, Medicine, and Jurisprudence were criticized for their radical themes and material, and were called "pornographic". Klimt had transformed traditional allegory and symbolism into a new language that was more overtly sexual and hence more disturbing to some. The public outcry came from all quarters—political, aesthetic and religious. As a result, the paintings (seen in gallery below) were not displayed on the ceiling of the Great Hall. This was to be the last public commission accepted by the artist. All three paintings were destroyed when retreating German forces burned Schloss Immendorf in May 1945, together with another ten paintings, including Schubert at the Piano, Girlfriends (or Two Women Friends), Wally (portrait), The Music (II)". His Nuda Veritas (1899) defined his bid to further "shake up" the establishment. The starkly naked red-headed woman holds the mirror of truth, while above her is a quotation by Friedrich Schiller in stylized lettering: "If you cannot please everyone with your deeds and your art, please only a few. To please many is bad." In 1902, animated by resentment Klimt wanted to title the painting Gold Fish (in which a naked woman ostentatiously and maliciously shows her butt), "To my critics", but was dissuaded by friends. In 1902, Klimt finished the Beethoven Frieze for the Fourteenth Vienna Secessionist exhibition, which was intended to be a celebration of the composer and featured a monumental polychrome sculpture by Max Klinger. Intended for the exhibition only, the frieze was painted directly on the walls with light materials. After the exhibition the painting was preserved, although it was not displayed again until restored in 1986. The face on the Beethoven portrait resembled the composer and Vienna Court Opera director Gustav Mahler. In 1905, dissensions within the Secession increased, and when the artistic consultant of the Galerie Mietkhe Carl Moll was attacked by colleagues of the Secession for his work, a strong controversy arose which created a real internal split, led by Klimt. The following year, Klimt formed the group called "Kunstschau" (Art Show) or "Klimt group", which also included Moll and Otto Wagner, among other important Austrian artists. During this period Klimt did not confine himself to public commissions. Beginning in the late 1890s he took annual summer holidays with the Flöge family on the shores of Attersee and painted many of his landscapes there. These landscapes constitute the only genre aside from figure painting that seriously interested Klimt. In recognition of his intensity, the locals called him Waldschrat ("forest demon"). Klimt's Attersee paintings are of sufficient number and quality as to merit separate appreciation. Formally, the landscapes are characterized by the same refinement of design and emphatic patterning as the figural pieces. Deep space in the Attersee works is flattened so efficiently to a single plane that it is believed that Klimt painted them by using a telescope. From 1900 Gustav Klimt became famous above all as a "painter of women". He created about one large-format portrait of a woman per year, in which he applied the principles of Art Nouveau - flatness, decoration, gold leaf application. At the same time, he devoted himself to allegories and Old Testament heroines, which he transformed, however, into dangerous "femmes fatales". Eros, sexuality and femininity were variously interpreted by him as alluring danger. Life, love, and death can be determined as the important themes of Klimt's work. Klimt's 'Golden Phase' was marked by positive critical reaction and financial success. Many of his paintings from this period included gold leaf. Klimt had previously used gold in his Pallas Athene (1898) and Judith I (1901), although the works most popularly associated with this period are the Portrait of Adele Bloch-Bauer I (1907) and The Kiss (1907–08). Klimt traveled in all Europe, mainly to present his works on occasion of international exhibitions, but trips to Venice and Ravenna, both famous for their beautiful mosaics, most likely inspired his gold technique and his Byzantine imagery. In 1904, he collaborated with other artists on the lavish Stoclet Palace, the home of a wealthy Belgian industrialist that was one of the grandest monuments of the Art Nouveau age. Klimt's contributions to the dining room, including both Fulfillment and Expectation, were some of his finest decorative works, and as he publicly stated, "probably the ultimate stage of my development of ornament." In 1905, Klimt painted The Three Ages of Woman, depicting the cycle of life. He created a painted portrait of Margarete Wittgenstein, Ludwig Wittgenstein's sister, on the occasion of her marriage. Then, between 1907 and 1909, Klimt painted five canvases of society women wrapped in fur. His apparent love of costume is expressed in the many photographs of Flöge modeling clothing he had designed. As he worked and relaxed in his home, Klimt normally wore sandals and a long robe with no undergarments. His simple life was somewhat cloistered, devoted to his art, family, and little else except the Secessionist Movement from which he and many colleagues eventually resigned. He avoided café society and seldom socialized with other artists. Klimt's fame usually brought patrons to his door and he could afford to be highly selective. His painting method was very deliberate and painstaking at times and he required lengthy sittings by his subjects. Although very active sexually, he kept his affairs discreet and he avoided personal scandal. The artist cultivated close relationships with some of his clients, who were primarily from the assimilated Jewish Viennese Haute bourgeoisie. He cultivated intimate relationships especially with his models from upper class circles. He was considered progressive for his time, because he allowed women an active role in sexuality. Klimt wrote little about his vision or his methods. He wrote mostly postcards to Flöge and kept no diary. In a rare writing called "Commentary on a non-existent self-portrait", he states "I have never painted a self-portrait. I am less interested in myself as a subject for a painting than I am in other people, above all women... There is nothing special about me. I am a painter who paints day after day from morning to night ... Whoever wants to know something about me ... ought to look carefully at my pictures." In 1901 Hermann Bahr wrote, in his Speech on Klimt: "Just as only a lover can reveal to a man what life means to him and develop its innermost significance, I feel the same about these paintings." In 1911 his painting Death and Life received first prize in the world exhibitions in Rome. In 1915 Anna, his mother, died. Klimt died three years later in Vienna on 6 February 1918, having suffered a stroke and pneumonia brought about by the worldwide influenza epidemic of that year. He was buried at the Hietzinger Cemetery in Hietzing, Vienna. Numerous paintings by him were left unfinished. The only folio set produced in Klimt's lifetime, Das Werk Gustav Klimts, was published initially by H. O. Miethke (of Galerie Miethke, Klimt's exclusive gallery in Vienna) from 1908 to 1914 in an edition of 300, supervised personally by the artist. The first thirty-five editions (I-XXXV) each included an original drawing by Klimt, and the next thirty-five editions (XXXVI-LXX) each with a facsimile signature on the title page. Fifty images depicting Klimt's most important paintings (1893–1913) were reproduced using collotype lithography and mounted on a heavy, cream-colored wove paper with deckle edges. Thirty-one of the images (ten of which are multicolored) are printed on Chine-collé. The remaining nineteen are high quality halftones prints. Each piece was marked with a unique signet—designed by Klimt—which was impressed into the wove paper in gold metallic ink. The prints were issued in groups of ten to subscribers, in unbound black paper folders embossed with Klimt's name. Because of the delicate nature of collotype lithography, as well as the necessity for multicolored prints (a feat difficult to reproduce with collotypes), and Klimt's own desire for perfection, the series that was published in mid-1908 was not completed until 1914. Each of the fifty prints was categorized among five themes: The monochrome collotypes as well as the halftone works were printed with a variety of colored inks ranging from sepia to blue and green. Emperor Franz Joseph I of Austria was the first to purchase a folio set of Das Werk Gustav Klimts in 1908. Fünfundzwanzig Handzeichnungen ("Twenty-five Drawings") was released the year after Klimt's death. Many of the drawings in the collection were erotic in nature and just as polarizing as his painted works. Published in Vienna in 1919 by Gilhofer & Ranschburg, the edition of 500 features twenty-five monochrome and two-color collotype reproductions, nearly indistinguishable from the original works. While the set was released a year after Klimt's death, some art historians suspect he was involved with production planning because of the meticulous nature of the printing (Klimt had overseen the production of the plates for Das Werk Gustav Klimts, making sure each one was to his exact specifications, a level of quality carried through similarly in Fünfundzwanzig Handzeichnungen). The first ten editions also each contained an original Klimt drawing. Many of the works contained in this volume depict erotic scenes of nude women, some of whom are masturbating alone or are coupled in sapphic embraces. When a number of the original drawings were exhibited to the public, at Galerie Miethke in 1910 and the International Exhibition of Prints and Drawings in Vienna in 1913, they were met by critics and viewers who were hostile towards Klimt's contemporary perspective. There was an audience for Klimt's erotic drawings, however, and fifteen of his drawings were selected by Viennese poet Franz Blei for his translation of Hellenistic satirist Lucian's Dialogues of the Courtesans. The book, limited to 450 copies, provided Klimt with the opportunity to show these more lurid depictions of women and avoided censorship thanks to an audience composed of a small group of (mostly male) affluent patrons. Composed in 1931 by editor Max Eisler and printed by the Austrian State Printing Office, Gustav Klimt An Aftermath was intended to complete the lifetime folio Das Werk Gustav Klimts. The folio contains thirty colored collotypes (fourteen of which are multicolored) and follows a similar format found in Das Werk Gustav Klimts, replacing the unique Klimt-designed signets with gold-debossed plate numbers. One hundred and fifty sets were produced in English, with twenty of them (Nos. I–XX) presented as a "gala edition" bound in gilt leather. The set contains detailed images from previously released works (Hygeia from the University Mural Medicine, 1901; a section of the third University Mural Jurisprudence, 1903), as well as the unfinished paintings (Adam and Eve, Bridal Progress). In 1963, the Albertina museum in Vienna began researching the drawings of Gustav Klimt. The research project Gustav Klimt. Die Zeichnungen, has since been associated with intensive exhibition and publication activities. Between 1980 and 1984 Alice Strobl published the three-volume catalogue raisonné, which records and describes all drawings by Gustav Klimt known at the time in chronological order. An additional supplementary volume was published in 1989. In the following year Strobl transferred her work to the art historian and curator Marian Bisanz-Prakken, who had assisted her since 1975 in the determination and classification of the works and who continues the research project to this day. Since 1990, Marian Bisanz-Prakken has redefined, documented, and scientifically processed around 400 further drawings. This makes the Albertina Vienna the only institution in the world that has been examining and scientifically classifying the artist's works for half a century. The research project now includes information on over 4,300 works by Gustav Klimt. Klimt's paintings have brought some of the highest prices recorded for individual works of art. In November 2003, Klimt's Landhaus am Attersee sold for $29,128,000, but that sale was soon eclipsed by prices paid for Willem de Kooning's Woman III and later Klimt's own Adele Bloch-Bauer II, the latter of which sold for $150 million in 2016. More frequently than paintings, however, the artist's works on paper can be found on the art market. The art market database Artprice lists 67 auction entries for paintings, but 1564 for drawings and watercolors. The most expensive drawing sold so far was "Reclining Female Nude Facing Left", which was made between 1914 and 1915 and sold in London in 2008 for £505,250. However, the majority of the art trade traditionally takes place privately through galleries such as Wienerroither & Kohlbacher, which specialize in the trade with original works by Gustav Klimt and Egon Schiele and regularly present these at monographic exhibitions and international art fairs. In 2006, the 1907 portrait, Adele Bloch-Bauer I, was purchased for the Neue Galerie New York by Ronald Lauder reportedly for US$135 million, surpassing Picasso's 1905 Boy With a Pipe (sold 5 May 2004 for $104 million), as the highest reported price ever paid for a painting up to that point. On 7 August 2006, Christie's auction house announced it was handling the sale of the remaining four works by Klimt that were recovered by Maria Altmann and her co-heirs after their long legal battle against Austria (see Republic of Austria v. Altmann). Altmann's fight to regain her family's paintings has been the subject of a number of documentary films, including Adele's Wish. Her struggle also became the subject of the dramatic film the Woman in Gold, a movie inspired by Stealing Klimt, the documentary featuring Maria Altmann herself. The portrait of Adele Bloch-Bauer II was sold at auction in November 2006 for $88 million, the third-highest priced piece of art at auction at the time. The Apple Tree I (c. 1912) sold for $33 million, Birch Forest (1903) sold for $40.3 million, and Houses in Unterach on Lake Atter (1916) sold for $31 million. Collectively, the five restituted paintings netted more than $327 million. The painting Litzlberg am Attersee was auctioned for $40.4 million November 2011. Klimt's last painting, Lady with a Fan (Dame mit Fächer, 1918), is sold by Sotheby's in London on 27 June 2023 for UK£85.3M (US$108.4) to a Hong Kong collector, the highest-priced artwork ever sold at auction in Europe. According to the writer Frank Whitford: "Klimt of course, is an important artist—he's a very popular artist—but in terms of the history of art, he's a very unimportant artist. Although he sums up so much in his work, about the society in which he found himself—in art historical terms his effect was negligible. So he's an artist really in a cul-de-sac." Klimt's work had a strong influence on the paintings of Egon Schiele, with whom he would collaborate to found the Kunsthalle (Hall of Art) in 1917, to try to keep local artists from going abroad. Artists who reinterpreted Klimt's work include Slovak artist Rudolf Fila. Already during his lifetime Klimt influenced other artists, such as the Italian Liberty style artist Galileo Chini (1873–1956). Klimt was exhibited at the 1910 Venice Biennale. Chini and Vittorio Zecchin (1878–1947) created a number of panels in 1914 for the Venice Hotel Terminus called "La Primavera" and "Mille e una notte". These were later exhibited in the Boncompagni Ludovisi Decorative Art Museum. In 1972, the Vienna State Opera presented a new production of Salome, an opera by Oscar Wilde and Richard Strauss, in a Klimt inspired stage setting and costumes by Jürgen Rose. This production, directed by Boleslaw Barlog and first conducted by Karl Böhm, became extremely popular and stayed in the repertoire for nearly fifty years. It was shown in 265 performances and went on tour to Florence, Washington and twice to Japan. In 2006, an Austrian art-house biographical film about his life was released starring John Malkovich as Klimt. In 2008, the Couturier John Galliano found inspiration for the Christian Dior Spring-Summer 2008 haute couture collection in Klimt's work. The 2019 collection of designer Alexander McQueen was partially inspired by Klimt. Several of Klimt's most famous works from his golden period inspired the title sequence for the animated adaptation of the manga series, Elfen Lied, in which the art is recreated to fit with the series' own characters and is arranged as a montage with the song "Lilium". The opening to the anime Sound of the Sky also is largely inspired by Klimt's works, which was also directed by the same director as Elfen Lied. The design of the land of Centopia on the TV series Mia and Me is inspired by Klimt's works. The art of the video game Transistor also uses patterns and embellishments inspired by Klimt. Gustav Klimt and his work have been the subjects of many collector coins and medals, such as the 100 Euro Painting Gold Coin, issued on 5 November 2003, by the Austrian Mint. The obverse depicts Klimt in his studio with two unfinished paintings on easels. Tawny Chatmon, an American photographic artist known for her portraits of Black children overlaid with gold leaf and paint, has sought to place Black figures in glittering gold clothing inspired by Klimt's lavish portraits of white Viennese women. Elements of the portrait First Lady Michelle Obama, by Amy Sherald in 2018, have been noted by art critics to have been influenced by Klimt, in particular the Portrait of Adele Bloch-Bauer I. One commentator noted the similarity to fashion designed by Klimt's muse Emilie Louise Flöge. The city of Vienna, Austria had many special exhibitions commemorating the 150th anniversary of Klimt's birth in 2012. Google commemorated Gustav Klimt with a Google doodle celebrating Klimt's painting The Kiss on his 150th birthday, 14 July 2012. In 2012, the Austrian Mint began a five-coin gold series to coincide with the 150th anniversary of Klimt's birth. The first 50 Euro gold coin was issued on 25 January 2012 and featured a portrait of Klimt on the obverse and a portion of his painting of Adele Bloch-Bauer. In 2013, the Gustav Klimt Foundation was set up by Ursula Ucicky, widow of Klimt's illegitimate son Gustav Ucicky, with a mission to "preserve and disseminate Gustav Klimt's legacy." The managing director of the Leopold Museum, Peter Weinhäupl, was appointed as Chairman of the foundation. As a reaction, the museum's director Tobias G. Natter resigned in protest, citing Ucicky's past as a Nazi propaganda film-maker. In 2000, a government committee recommended that Klimt's Lady with Hat and Feather Boa, in Belvedere Museum in Vienna, be restituted to the heirs of the Jewish family that had owned it before the Nazi Anschluss. National Public Radio reported on 17 January 2006 that "The Austrian National Gallery is being compelled by a national arbitration board to return five paintings by Gustav Klimt to a Los Angeles based woman, the heir of a Jewish family that had its art stolen by the Nazis. The paintings are estimated to be worth at least $150 million." This incident, involving Maria Altmann, was subsequently made into the Hollywood movie Woman in Gold, starring Helen Mirren. The paintings, including 1907's Portrait of Adele Bloch-Bauer I, were sold by auction house Christie's for $325 million in 2006. In 2021 the French minister of culture announced that the only Klimt in France's national collections was Nazi loot which should be restituted to the heirs of the Jewish family that had been persecuted by Nazis. Rosebushes Under the Trees, painted in 1905, had been owned by Nora Stiasi, who had been forced to sell it before being murdered by the Nazis. It is currently hanging in France's Orsay Museum which purchased it from Swiss art dealer Peter Nathan in 1980. A similar painting, also painted by Klimt and known as Apple Trees II, which was also Nazi loot, was mistakenly returned to the wrong family by the Austrian authorities. Other Klimts that have been the object of ownership battles owing to a history of Nazi looting include the Beethoven Frieze, Water Snakes II, Blooming Meadow and Portrait of Gertrude Lowe.
[ { "paragraph_id": 0, "text": "Gustav Klimt (14 July 1862 – 6 February 1918) was an Austrian symbolist painter and one of the most prominent members of the Vienna Secession movement. Klimt is noted for his paintings, murals, sketches, and other objets d'art. Klimt's primary subject was the female body, and his works are marked by a frank eroticism. Amongst his figurative works, which include allegories and portraits, he painted landscapes. Among the artists of the Vienna Secession, Klimt was the most influenced by Japanese art and its methods.", "title": "" }, { "paragraph_id": 1, "text": "Early in his career, he was a successful painter of architectural decorations in a conventional manner. As he began to develop a more personal style, his work was the subject of controversy that culminated when the paintings he completed around 1900 for the ceiling of the Great Hall of the University of Vienna were criticized as pornographic. He subsequently accepted no more public commissions, but achieved a new success with the paintings of his \"golden phase\", many of which include gold leaf. Klimt's work was an important influence on his younger peer Egon Schiele.", "title": "" }, { "paragraph_id": 2, "text": "Since the 1990s, he has been one of the artists whose paintings fetch top prices at auctions.", "title": "" }, { "paragraph_id": 3, "text": "Gustav Klimt was born in Baumgarten, near Vienna in the Austrian Empire, the second of seven children—three boys and four girls. His mother, Anna Klimt (née Finster), had an unrealized ambition to be a musical performer. His father, Ernst Klimt the Elder, formerly from Bohemia, was a gold engraver. All three of their sons displayed artistic talent early on. Klimt's younger brothers were Ernst Klimt and Georg Klimt [de].", "title": "Life and work" }, { "paragraph_id": 4, "text": "Klimt lived in poverty while attending the Vienna Kunstgewerbeschule, a school of applied arts and crafts, now the University of Applied Arts Vienna, where he studied architectural painting from 1876 until 1883. He revered Vienna's foremost history painter of the time, Hans Makart. Klimt readily accepted the principles of a conservative training; his early work may be classified as academic. In 1877 his brother, Ernst, who, like his father, would become an engraver, also enrolled in the school. The two brothers and their friend, Franz Matsch, began working together and by 1880 they had received numerous commissions as a team that they called the \"Company of Artists\". They also helped their teacher in painting murals in the Kunsthistorisches Museum in Vienna. Klimt began his professional career painting interior murals and ceilings in large public buildings on the Ringstraße, including a successful series of \"Allegories and Emblems\".", "title": "Life and work" }, { "paragraph_id": 5, "text": "In 1888 Klimt received the Golden Order of Merit from Emperor Franz Josef I of Austria for his contributions to murals painted in the Burgtheater in Vienna. He also became an honorary member of the University of Munich and the University of Vienna. In 1892 Klimt's father and brother Ernst both died, and he had to assume financial responsibility for his father's and brother's families. The tragedies also affected his artistic vision and soon he would move towards a new personal style. Characteristic of his style at the end of the 19th century is the inclusion of Nuda Veritas (naked truth) as a symbolic figure in some of his works, including Ancient Greece and Egypt (1891), Pallas Athene (1898) and Nuda Veritas (1899). Historians believe that Klimt with the nuda veritas denounced both the policy of the Habsburgs and Austrian society, which ignored all political and social problems of that time. In the early 1890s Klimt met Austrian fashion designer Emilie Louise Flöge (a sibling of his sister-in-law) who was to be his companion until the end of his life. His painting, The Kiss (1907–08), is thought to be an image of them as lovers which was painted five years after Klimt's 1902 full-length portrait of her. He designed many costumes that she produced and modeled in his works.", "title": "Life and work" }, { "paragraph_id": 6, "text": "During this period Klimt fathered at least fourteen children.", "title": "Life and work" }, { "paragraph_id": 7, "text": "Klimt became one of the founding members and president of the Wiener Secession in 1897 and of the group's periodical, Ver Sacrum (\"Sacred Spring\"). He remained with the Secession until 1908. The goals of the group were to provide exhibitions for unconventional young artists, to bring the works of the best foreign artists to Vienna, and to publish its own magazine to showcase the work of members. The group declared no manifesto and did not set out to encourage any particular style—Naturalists, Realists, and Symbolists all coexisted. The government supported their efforts and gave them a lease on public land to erect an exhibition hall. The group's symbol was Pallas Athena, the Greek goddess of just causes, wisdom, and the arts—of whom Klimt painted his radical version in 1898.", "title": "Life and work" }, { "paragraph_id": 8, "text": "In 1894, Klimt was commissioned to create three paintings to decorate the ceiling of the Great Hall of the University of Vienna. Not completed until the turn of the century, his three paintings, Philosophy, Medicine, and Jurisprudence were criticized for their radical themes and material, and were called \"pornographic\". Klimt had transformed traditional allegory and symbolism into a new language that was more overtly sexual and hence more disturbing to some. The public outcry came from all quarters—political, aesthetic and religious. As a result, the paintings (seen in gallery below) were not displayed on the ceiling of the Great Hall. This was to be the last public commission accepted by the artist. All three paintings were destroyed when retreating German forces burned Schloss Immendorf in May 1945, together with another ten paintings, including Schubert at the Piano, Girlfriends (or Two Women Friends), Wally (portrait), The Music (II)\".", "title": "Life and work" }, { "paragraph_id": 9, "text": "His Nuda Veritas (1899) defined his bid to further \"shake up\" the establishment. The starkly naked red-headed woman holds the mirror of truth, while above her is a quotation by Friedrich Schiller in stylized lettering: \"If you cannot please everyone with your deeds and your art, please only a few. To please many is bad.\" In 1902, animated by resentment Klimt wanted to title the painting Gold Fish (in which a naked woman ostentatiously and maliciously shows her butt), \"To my critics\", but was dissuaded by friends.", "title": "Life and work" }, { "paragraph_id": 10, "text": "In 1902, Klimt finished the Beethoven Frieze for the Fourteenth Vienna Secessionist exhibition, which was intended to be a celebration of the composer and featured a monumental polychrome sculpture by Max Klinger. Intended for the exhibition only, the frieze was painted directly on the walls with light materials. After the exhibition the painting was preserved, although it was not displayed again until restored in 1986. The face on the Beethoven portrait resembled the composer and Vienna Court Opera director Gustav Mahler.", "title": "Life and work" }, { "paragraph_id": 11, "text": "In 1905, dissensions within the Secession increased, and when the artistic consultant of the Galerie Mietkhe Carl Moll was attacked by colleagues of the Secession for his work, a strong controversy arose which created a real internal split, led by Klimt. The following year, Klimt formed the group called \"Kunstschau\" (Art Show) or \"Klimt group\", which also included Moll and Otto Wagner, among other important Austrian artists.", "title": "Life and work" }, { "paragraph_id": 12, "text": "During this period Klimt did not confine himself to public commissions. Beginning in the late 1890s he took annual summer holidays with the Flöge family on the shores of Attersee and painted many of his landscapes there. These landscapes constitute the only genre aside from figure painting that seriously interested Klimt. In recognition of his intensity, the locals called him Waldschrat (\"forest demon\").", "title": "Life and work" }, { "paragraph_id": 13, "text": "Klimt's Attersee paintings are of sufficient number and quality as to merit separate appreciation. Formally, the landscapes are characterized by the same refinement of design and emphatic patterning as the figural pieces. Deep space in the Attersee works is flattened so efficiently to a single plane that it is believed that Klimt painted them by using a telescope.", "title": "Life and work" }, { "paragraph_id": 14, "text": "From 1900 Gustav Klimt became famous above all as a \"painter of women\". He created about one large-format portrait of a woman per year, in which he applied the principles of Art Nouveau - flatness, decoration, gold leaf application. At the same time, he devoted himself to allegories and Old Testament heroines, which he transformed, however, into dangerous \"femmes fatales\". Eros, sexuality and femininity were variously interpreted by him as alluring danger. Life, love, and death can be determined as the important themes of Klimt's work. Klimt's 'Golden Phase' was marked by positive critical reaction and financial success. Many of his paintings from this period included gold leaf. Klimt had previously used gold in his Pallas Athene (1898) and Judith I (1901), although the works most popularly associated with this period are the Portrait of Adele Bloch-Bauer I (1907) and The Kiss (1907–08).", "title": "Life and work" }, { "paragraph_id": 15, "text": "Klimt traveled in all Europe, mainly to present his works on occasion of international exhibitions, but trips to Venice and Ravenna, both famous for their beautiful mosaics, most likely inspired his gold technique and his Byzantine imagery. In 1904, he collaborated with other artists on the lavish Stoclet Palace, the home of a wealthy Belgian industrialist that was one of the grandest monuments of the Art Nouveau age. Klimt's contributions to the dining room, including both Fulfillment and Expectation, were some of his finest decorative works, and as he publicly stated, \"probably the ultimate stage of my development of ornament.\"", "title": "Life and work" }, { "paragraph_id": 16, "text": "In 1905, Klimt painted The Three Ages of Woman, depicting the cycle of life. He created a painted portrait of Margarete Wittgenstein, Ludwig Wittgenstein's sister, on the occasion of her marriage. Then, between 1907 and 1909, Klimt painted five canvases of society women wrapped in fur. His apparent love of costume is expressed in the many photographs of Flöge modeling clothing he had designed.", "title": "Life and work" }, { "paragraph_id": 17, "text": "As he worked and relaxed in his home, Klimt normally wore sandals and a long robe with no undergarments. His simple life was somewhat cloistered, devoted to his art, family, and little else except the Secessionist Movement from which he and many colleagues eventually resigned. He avoided café society and seldom socialized with other artists. Klimt's fame usually brought patrons to his door and he could afford to be highly selective. His painting method was very deliberate and painstaking at times and he required lengthy sittings by his subjects. Although very active sexually, he kept his affairs discreet and he avoided personal scandal.", "title": "Life and work" }, { "paragraph_id": 18, "text": "The artist cultivated close relationships with some of his clients, who were primarily from the assimilated Jewish Viennese Haute bourgeoisie. He cultivated intimate relationships especially with his models from upper class circles. He was considered progressive for his time, because he allowed women an active role in sexuality.", "title": "Life and work" }, { "paragraph_id": 19, "text": "Klimt wrote little about his vision or his methods. He wrote mostly postcards to Flöge and kept no diary. In a rare writing called \"Commentary on a non-existent self-portrait\", he states \"I have never painted a self-portrait. I am less interested in myself as a subject for a painting than I am in other people, above all women... There is nothing special about me. I am a painter who paints day after day from morning to night ... Whoever wants to know something about me ... ought to look carefully at my pictures.\"", "title": "Life and work" }, { "paragraph_id": 20, "text": "In 1901 Hermann Bahr wrote, in his Speech on Klimt: \"Just as only a lover can reveal to a man what life means to him and develop its innermost significance, I feel the same about these paintings.\"", "title": "Life and work" }, { "paragraph_id": 21, "text": "In 1911 his painting Death and Life received first prize in the world exhibitions in Rome. In 1915 Anna, his mother, died. Klimt died three years later in Vienna on 6 February 1918, having suffered a stroke and pneumonia brought about by the worldwide influenza epidemic of that year. He was buried at the Hietzinger Cemetery in Hietzing, Vienna. Numerous paintings by him were left unfinished.", "title": "Life and work" }, { "paragraph_id": 22, "text": "The only folio set produced in Klimt's lifetime, Das Werk Gustav Klimts, was published initially by H. O. Miethke (of Galerie Miethke, Klimt's exclusive gallery in Vienna) from 1908 to 1914 in an edition of 300, supervised personally by the artist. The first thirty-five editions (I-XXXV) each included an original drawing by Klimt, and the next thirty-five editions (XXXVI-LXX) each with a facsimile signature on the title page. Fifty images depicting Klimt's most important paintings (1893–1913) were reproduced using collotype lithography and mounted on a heavy, cream-colored wove paper with deckle edges. Thirty-one of the images (ten of which are multicolored) are printed on Chine-collé. The remaining nineteen are high quality halftones prints. Each piece was marked with a unique signet—designed by Klimt—which was impressed into the wove paper in gold metallic ink. The prints were issued in groups of ten to subscribers, in unbound black paper folders embossed with Klimt's name. Because of the delicate nature of collotype lithography, as well as the necessity for multicolored prints (a feat difficult to reproduce with collotypes), and Klimt's own desire for perfection, the series that was published in mid-1908 was not completed until 1914.", "title": "Folios" }, { "paragraph_id": 23, "text": "Each of the fifty prints was categorized among five themes:", "title": "Folios" }, { "paragraph_id": 24, "text": "The monochrome collotypes as well as the halftone works were printed with a variety of colored inks ranging from sepia to blue and green. Emperor Franz Joseph I of Austria was the first to purchase a folio set of Das Werk Gustav Klimts in 1908.", "title": "Folios" }, { "paragraph_id": 25, "text": "Fünfundzwanzig Handzeichnungen (\"Twenty-five Drawings\") was released the year after Klimt's death. Many of the drawings in the collection were erotic in nature and just as polarizing as his painted works. Published in Vienna in 1919 by Gilhofer & Ranschburg, the edition of 500 features twenty-five monochrome and two-color collotype reproductions, nearly indistinguishable from the original works. While the set was released a year after Klimt's death, some art historians suspect he was involved with production planning because of the meticulous nature of the printing (Klimt had overseen the production of the plates for Das Werk Gustav Klimts, making sure each one was to his exact specifications, a level of quality carried through similarly in Fünfundzwanzig Handzeichnungen). The first ten editions also each contained an original Klimt drawing.", "title": "Folios" }, { "paragraph_id": 26, "text": "Many of the works contained in this volume depict erotic scenes of nude women, some of whom are masturbating alone or are coupled in sapphic embraces. When a number of the original drawings were exhibited to the public, at Galerie Miethke in 1910 and the International Exhibition of Prints and Drawings in Vienna in 1913, they were met by critics and viewers who were hostile towards Klimt's contemporary perspective. There was an audience for Klimt's erotic drawings, however, and fifteen of his drawings were selected by Viennese poet Franz Blei for his translation of Hellenistic satirist Lucian's Dialogues of the Courtesans. The book, limited to 450 copies, provided Klimt with the opportunity to show these more lurid depictions of women and avoided censorship thanks to an audience composed of a small group of (mostly male) affluent patrons.", "title": "Folios" }, { "paragraph_id": 27, "text": "Composed in 1931 by editor Max Eisler and printed by the Austrian State Printing Office, Gustav Klimt An Aftermath was intended to complete the lifetime folio Das Werk Gustav Klimts. The folio contains thirty colored collotypes (fourteen of which are multicolored) and follows a similar format found in Das Werk Gustav Klimts, replacing the unique Klimt-designed signets with gold-debossed plate numbers. One hundred and fifty sets were produced in English, with twenty of them (Nos. I–XX) presented as a \"gala edition\" bound in gilt leather. The set contains detailed images from previously released works (Hygeia from the University Mural Medicine, 1901; a section of the third University Mural Jurisprudence, 1903), as well as the unfinished paintings (Adam and Eve, Bridal Progress).", "title": "Folios" }, { "paragraph_id": 28, "text": "In 1963, the Albertina museum in Vienna began researching the drawings of Gustav Klimt. The research project Gustav Klimt. Die Zeichnungen, has since been associated with intensive exhibition and publication activities.", "title": "Drawings" }, { "paragraph_id": 29, "text": "Between 1980 and 1984 Alice Strobl published the three-volume catalogue raisonné, which records and describes all drawings by Gustav Klimt known at the time in chronological order. An additional supplementary volume was published in 1989. In the following year Strobl transferred her work to the art historian and curator Marian Bisanz-Prakken, who had assisted her since 1975 in the determination and classification of the works and who continues the research project to this day. Since 1990, Marian Bisanz-Prakken has redefined, documented, and scientifically processed around 400 further drawings.", "title": "Drawings" }, { "paragraph_id": 30, "text": "This makes the Albertina Vienna the only institution in the world that has been examining and scientifically classifying the artist's works for half a century. The research project now includes information on over 4,300 works by Gustav Klimt.", "title": "Drawings" }, { "paragraph_id": 31, "text": "Klimt's paintings have brought some of the highest prices recorded for individual works of art. In November 2003, Klimt's Landhaus am Attersee sold for $29,128,000, but that sale was soon eclipsed by prices paid for Willem de Kooning's Woman III and later Klimt's own Adele Bloch-Bauer II, the latter of which sold for $150 million in 2016. More frequently than paintings, however, the artist's works on paper can be found on the art market. The art market database Artprice lists 67 auction entries for paintings, but 1564 for drawings and watercolors. The most expensive drawing sold so far was \"Reclining Female Nude Facing Left\", which was made between 1914 and 1915 and sold in London in 2008 for £505,250. However, the majority of the art trade traditionally takes place privately through galleries such as Wienerroither & Kohlbacher, which specialize in the trade with original works by Gustav Klimt and Egon Schiele and regularly present these at monographic exhibitions and international art fairs.", "title": "Legacy" }, { "paragraph_id": 32, "text": "In 2006, the 1907 portrait, Adele Bloch-Bauer I, was purchased for the Neue Galerie New York by Ronald Lauder reportedly for US$135 million, surpassing Picasso's 1905 Boy With a Pipe (sold 5 May 2004 for $104 million), as the highest reported price ever paid for a painting up to that point.", "title": "Legacy" }, { "paragraph_id": 33, "text": "On 7 August 2006, Christie's auction house announced it was handling the sale of the remaining four works by Klimt that were recovered by Maria Altmann and her co-heirs after their long legal battle against Austria (see Republic of Austria v. Altmann). Altmann's fight to regain her family's paintings has been the subject of a number of documentary films, including Adele's Wish. Her struggle also became the subject of the dramatic film the Woman in Gold, a movie inspired by Stealing Klimt, the documentary featuring Maria Altmann herself. The portrait of Adele Bloch-Bauer II was sold at auction in November 2006 for $88 million, the third-highest priced piece of art at auction at the time. The Apple Tree I (c. 1912) sold for $33 million, Birch Forest (1903) sold for $40.3 million, and Houses in Unterach on Lake Atter (1916) sold for $31 million. Collectively, the five restituted paintings netted more than $327 million. The painting Litzlberg am Attersee was auctioned for $40.4 million November 2011.", "title": "Legacy" }, { "paragraph_id": 34, "text": "Klimt's last painting, Lady with a Fan (Dame mit Fächer, 1918), is sold by Sotheby's in London on 27 June 2023 for UK£85.3M (US$108.4) to a Hong Kong collector, the highest-priced artwork ever sold at auction in Europe.", "title": "Legacy" }, { "paragraph_id": 35, "text": "According to the writer Frank Whitford: \"Klimt of course, is an important artist—he's a very popular artist—but in terms of the history of art, he's a very unimportant artist. Although he sums up so much in his work, about the society in which he found himself—in art historical terms his effect was negligible. So he's an artist really in a cul-de-sac.\" Klimt's work had a strong influence on the paintings of Egon Schiele, with whom he would collaborate to found the Kunsthalle (Hall of Art) in 1917, to try to keep local artists from going abroad. Artists who reinterpreted Klimt's work include Slovak artist Rudolf Fila.", "title": "Legacy" }, { "paragraph_id": 36, "text": "Already during his lifetime Klimt influenced other artists, such as the Italian Liberty style artist Galileo Chini (1873–1956). Klimt was exhibited at the 1910 Venice Biennale. Chini and Vittorio Zecchin (1878–1947) created a number of panels in 1914 for the Venice Hotel Terminus called \"La Primavera\" and \"Mille e una notte\". These were later exhibited in the Boncompagni Ludovisi Decorative Art Museum.", "title": "Legacy" }, { "paragraph_id": 37, "text": "In 1972, the Vienna State Opera presented a new production of Salome, an opera by Oscar Wilde and Richard Strauss, in a Klimt inspired stage setting and costumes by Jürgen Rose. This production, directed by Boleslaw Barlog and first conducted by Karl Böhm, became extremely popular and stayed in the repertoire for nearly fifty years. It was shown in 265 performances and went on tour to Florence, Washington and twice to Japan.", "title": "Legacy" }, { "paragraph_id": 38, "text": "In 2006, an Austrian art-house biographical film about his life was released starring John Malkovich as Klimt. In 2008, the Couturier John Galliano found inspiration for the Christian Dior Spring-Summer 2008 haute couture collection in Klimt's work. The 2019 collection of designer Alexander McQueen was partially inspired by Klimt.", "title": "Legacy" }, { "paragraph_id": 39, "text": "Several of Klimt's most famous works from his golden period inspired the title sequence for the animated adaptation of the manga series, Elfen Lied, in which the art is recreated to fit with the series' own characters and is arranged as a montage with the song \"Lilium\". The opening to the anime Sound of the Sky also is largely inspired by Klimt's works, which was also directed by the same director as Elfen Lied. The design of the land of Centopia on the TV series Mia and Me is inspired by Klimt's works. The art of the video game Transistor also uses patterns and embellishments inspired by Klimt.", "title": "Legacy" }, { "paragraph_id": 40, "text": "Gustav Klimt and his work have been the subjects of many collector coins and medals, such as the 100 Euro Painting Gold Coin, issued on 5 November 2003, by the Austrian Mint. The obverse depicts Klimt in his studio with two unfinished paintings on easels.", "title": "Legacy" }, { "paragraph_id": 41, "text": "Tawny Chatmon, an American photographic artist known for her portraits of Black children overlaid with gold leaf and paint, has sought to place Black figures in glittering gold clothing inspired by Klimt's lavish portraits of white Viennese women.", "title": "Legacy" }, { "paragraph_id": 42, "text": "Elements of the portrait First Lady Michelle Obama, by Amy Sherald in 2018, have been noted by art critics to have been influenced by Klimt, in particular the Portrait of Adele Bloch-Bauer I. One commentator noted the similarity to fashion designed by Klimt's muse Emilie Louise Flöge.", "title": "Legacy" }, { "paragraph_id": 43, "text": "The city of Vienna, Austria had many special exhibitions commemorating the 150th anniversary of Klimt's birth in 2012.", "title": "Legacy" }, { "paragraph_id": 44, "text": "Google commemorated Gustav Klimt with a Google doodle celebrating Klimt's painting The Kiss on his 150th birthday, 14 July 2012.", "title": "Legacy" }, { "paragraph_id": 45, "text": "In 2012, the Austrian Mint began a five-coin gold series to coincide with the 150th anniversary of Klimt's birth. The first 50 Euro gold coin was issued on 25 January 2012 and featured a portrait of Klimt on the obverse and a portion of his painting of Adele Bloch-Bauer.", "title": "Legacy" }, { "paragraph_id": 46, "text": "In 2013, the Gustav Klimt Foundation was set up by Ursula Ucicky, widow of Klimt's illegitimate son Gustav Ucicky, with a mission to \"preserve and disseminate Gustav Klimt's legacy.\" The managing director of the Leopold Museum, Peter Weinhäupl, was appointed as Chairman of the foundation. As a reaction, the museum's director Tobias G. Natter resigned in protest, citing Ucicky's past as a Nazi propaganda film-maker.", "title": "Legacy" }, { "paragraph_id": 47, "text": "In 2000, a government committee recommended that Klimt's Lady with Hat and Feather Boa, in Belvedere Museum in Vienna, be restituted to the heirs of the Jewish family that had owned it before the Nazi Anschluss.", "title": "Legacy" }, { "paragraph_id": 48, "text": "National Public Radio reported on 17 January 2006 that \"The Austrian National Gallery is being compelled by a national arbitration board to return five paintings by Gustav Klimt to a Los Angeles based woman, the heir of a Jewish family that had its art stolen by the Nazis. The paintings are estimated to be worth at least $150 million.\" This incident, involving Maria Altmann, was subsequently made into the Hollywood movie Woman in Gold, starring Helen Mirren.", "title": "Legacy" }, { "paragraph_id": 49, "text": "The paintings, including 1907's Portrait of Adele Bloch-Bauer I, were sold by auction house Christie's for $325 million in 2006.", "title": "Legacy" }, { "paragraph_id": 50, "text": "In 2021 the French minister of culture announced that the only Klimt in France's national collections was Nazi loot which should be restituted to the heirs of the Jewish family that had been persecuted by Nazis. Rosebushes Under the Trees, painted in 1905, had been owned by Nora Stiasi, who had been forced to sell it before being murdered by the Nazis. It is currently hanging in France's Orsay Museum which purchased it from Swiss art dealer Peter Nathan in 1980.", "title": "Legacy" }, { "paragraph_id": 51, "text": "A similar painting, also painted by Klimt and known as Apple Trees II, which was also Nazi loot, was mistakenly returned to the wrong family by the Austrian authorities.", "title": "Legacy" }, { "paragraph_id": 52, "text": "Other Klimts that have been the object of ownership battles owing to a history of Nazi looting include the Beethoven Frieze, Water Snakes II, Blooming Meadow and Portrait of Gertrude Lowe.", "title": "Legacy" } ]
Gustav Klimt was an Austrian symbolist painter and one of the most prominent members of the Vienna Secession movement. Klimt is noted for his paintings, murals, sketches, and other objets d'art. Klimt's primary subject was the female body, and his works are marked by a frank eroticism. Amongst his figurative works, which include allegories and portraits, he painted landscapes. Among the artists of the Vienna Secession, Klimt was the most influenced by Japanese art and its methods. Early in his career, he was a successful painter of architectural decorations in a conventional manner. As he began to develop a more personal style, his work was the subject of controversy that culminated when the paintings he completed around 1900 for the ceiling of the Great Hall of the University of Vienna were criticized as pornographic. He subsequently accepted no more public commissions, but achieved a new success with the paintings of his "golden phase", many of which include gold leaf. Klimt's work was an important influence on his younger peer Egon Schiele. Since the 1990s, he has been one of the artists whose paintings fetch top prices at auctions.
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https://en.wikipedia.org/wiki/Gustav_Klimt
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Groucho Marx
Julius Henry "Groucho" Marx (/ˈɡraʊtʃoʊ/; October 2, 1890 – August 19, 1977) was an American comedian, actor, writer, and singer who performed in film, television, radio, stage, and vaudeville. He was a master of quick wit and is generally considered to have been one of America's greatest comedians. He made 13 feature films as a team with his brothers, who performed under the name the Marx Brothers, of whom he was the third-born. He also had a successful solo career primarily on radio and television, most notably as the host of the game show You Bet Your Life. His distinctive appearance, carried over from his days in vaudeville, included quirks such as an exaggerated stooped posture, spectacles, cigar, and a thick greasepaint mustache (later a real mustache) and eyebrows. These exaggerated features resulted in the creation of one of the most recognizable and ubiquitous novelty disguises, known as Groucho glasses: a one-piece mask consisting of horn-rimmed glasses, a large plastic nose, bushy eyebrows and mustache. Julius Henry Marx was born on October 2, 1890, in Manhattan, New York City. Marx stated that he was born in a room above a butcher's shop on East 78th Street, "Between Lexington & 3rd", as he told Dick Cavett in a 1969 television interview. The Marx children grew up in a turn-of-the-century building at 179 East 93rd Street off Lexington Avenue in a neighborhood now known as Carnegie Hill on the Upper East Side of the borough of Manhattan. His older brother Harpo, in his memoir Harpo Speaks, called the building "the first real home I knew".It was populated with European immigrants, mostly artisans. Just across the street were the oldest brownstones in the area, owned by people including the well-connected Loew Brothers and William Orth. The Marx family lived there "for about 14 years," Groucho also told Cavett. Marx's family was Jewish. His mother was Miene "Minnie" Schoenberg, whose family came from Dornum in northern Germany when she was 16 years old. His father was Simon "Sam" Marx, who changed his name from Marrix, and was called "Frenchie" by his sons throughout his life, because he and his family came from Alsace in France. Minnie's brother was Al Schoenberg, who shortened his name to Al Shean when he went into show business as half of Gallagher and Shean, a noted vaudeville act of the early 20th century. According to Marx, when Shean visited, he would throw the local waifs a few coins so that when he knocked at the door he would be surrounded by adoring fans. Marx and his brothers respected his opinions and asked him on several occasions to write some material for them. Minnie Marx did not have an entertainment industry career but had intense ambition for her sons to go on the stage like their uncle. While pushing her second son Leonard (Chico Marx) in piano lessons, she found that Julius had a pleasant soprano voice and the ability to remain on key. Julius's early career goal was to become a doctor, but the family's need for income forced him out of school at the age of twelve. By that time young Julius had become a voracious reader, particularly fond of Horatio Alger. Marx continued to overcome his lack of formal education by becoming very well-read. After a few stabs at entry-level office work and jobs suitable for adolescents, Julius took to the stage as a boy singer with the Gene Leroy Trio, debuting at the Ramona Theatre in Grand Rapids, Michigan, on July 16, 1905. Marx reputedly claimed that he was "hopelessly average" as a vaudevillian, but this was typical Marx, wisecracking in his true form. By 1909, Minnie Marx had assembled her sons into an undistinguished vaudeville singing group billed as "The Four Nightingales". The brothers Julius, Milton (Gummo Marx) and Arthur (originally Adolph, but Harpo Marx from 1911) and another boy singer, Lou Levy, traveled the U.S. vaudeville circuits to little fanfare. After exhausting their prospects in the East, the family moved to La Grange, Illinois, to play the Midwest. After a particularly dispiriting performance in Nacogdoches, Texas, Julius, Milton, and Arthur began cracking jokes onstage for their own amusement. Much to their surprise, the audience liked them better as comedians than as singers. They modified the then-popular Gus Edwards comedy skit "School Days" and renamed it "Fun In Hi Skule". The Marx Brothers performed variations on this routine for the next seven years. For a time in vaudeville, all the brothers performed using ethnic accents. Leonard, the oldest, developed the Italian accent he used as Chico Marx to convince some roving bullies that he was Italian, not Jewish. Arthur, the next oldest, donned a curly red wig and became "Patsy Brannigan", a stereotypical Irish character. His discomfort when speaking on stage led to his uncle Al Shean's suggestion that he stop speaking altogether and play the role in mime. Julius Marx's character from "Fun In Hi Skule" was an ethnic German, so Julius played him with a German accent. After the sinking of the RMS Lusitania in 1915, public anti-German sentiment was widespread, and Marx's German character was booed, so he quickly dropped the accent and developed the fast-talking wise-guy character that became his trademark. The Marx Brothers became the biggest comedic stars of the Palace Theatre in New York, which billed itself as the "Valhalla of Vaudeville". Brother Chico's deal-making skills resulted in three hit plays on Broadway. No other comedy routine had ever so infected the Broadway circuit. All of this stage work predated their Hollywood career. By the time the Marxes made their first movie, they were already major stars with sharply honed skills; and by the time Groucho was relaunched to stardom in television on You Bet Your Life, he had been performing successfully for half a century. Marx started his career in vaudeville in 1905 when he joined up with an act called The Leroy Trio. He answered a newspaper want ad by a man named Robin Leroy who was looking for a boy to join his group as a singer. Marx was hired along with fellow vaudeville actor Johnny Morris. Through this act, Marx got his first taste of life as a vaudeville performer. In 1909, Marx and his brothers had become a group act, at first called The Three Nightingales and later The Four Nightingales. The brothers' mother, Minnie Marx, was the group's manager, putting them together and booking their shows. The group had a rocky start, performing in less than adequate venues and rarely, if ever, being paid for their performances. Eventually brother Milton (Gummo) left the act to serve in World War I and was replaced by Herbert (Zeppo), and the group became known as the Marx Brothers. Their first successful show was Fun In Hi Skule (1910). Marx made 26 movies, including 13 with his brothers Chico and Harpo. Marx developed a routine as a wisecracking hustler with a distinctive chicken-walking lope, an exaggerated greasepaint mustache and eyebrows and an ever-present cigar, improvising insults to stuffy dowagers (frequently played by Margaret Dumont) and anyone else who stood in his way. As the Marx Brothers, he and his brothers starred in a series of popular stage shows and movies. Their first movie was a silent film made in 1921 that was never released, and is believed to have been destroyed at the time. A decade later, the team made two of their Broadway hits—The Cocoanuts and Animal Crackers—into movies. Other successful films were Monkey Business, Horse Feathers, Duck Soup and A Night at the Opera. One quip from Marx concerned his response to Sam Wood, the director of A Night at the Opera. Furious with the Marx Brothers' ad-libs and antics on the set, Wood yelled in disgust: "You can't make an actor out of clay." Marx responded, "Nor a director out of Wood." Marx also worked as a radio comedian and show host. One of his earliest stints was a short-lived series in 1932, Flywheel, Shyster and Flywheel, costarring Chico. Though most of the scripts and discs were thought to have been destroyed, all but one of the scripts were found in 1988 in the Library of Congress. In 1947, Marx was asked to host a radio quiz program You Bet Your Life. It was broadcast by ABC and then CBS before moving to NBC. It moved from radio to television on October 5, 1950, and ran for eleven years. Filmed before an audience, the show consisted of Marx bantering with the contestants and ad-libbing jokes before briefly quizzing them. The show was responsible for popularizing the phrases "Say the secret word and the duck will come down and give you fifty dollars," "Who's buried in Grant's Tomb?" and "What color is the White House?" (asked to reward a losing contestant a consolation prize). Throughout his career Marx introduced a number of memorable songs in films, including "Hooray for Captain Spaulding" and "Hello, I Must Be Going", in Animal Crackers, "Whatever It Is, I'm Against It", "Everyone Says I Love You" and "Lydia the Tattooed Lady". Frank Sinatra, who once quipped that the only thing he could do better than Marx was sing, made a film with Marx and Jane Russell in 1951 entitled Double Dynamite. In public and off-camera, Harpo and Chico were hard to recognize without their wigs and costumes, and it was almost impossible for fans to recognize Groucho without his trademark eyeglasses, fake eyebrows, and mustache. The greasepaint mustache and eyebrows originated spontaneously prior to a vaudeville performance in the early 1920s when he did not have time to apply the pasted-on mustache he had been using (or, according to his autobiography, simply did not enjoy the removal of the mustache because of the effects of tearing an adhesive bandage off the same patch of skin every night). After applying the greasepaint mustache, a quick glance in the mirror revealed his natural hair eyebrows were too undertoned and did not match the rest of his face, so Marx added the greasepaint to his eyebrows and headed for the stage. The absurdity of the greasepaint was never discussed on-screen, but in a famous scene in Duck Soup, where both Chicolini (Chico) and Pinky (Harpo) disguise themselves as Groucho, they are briefly seen applying the greasepaint, implicitly answering any question a viewer might have had about where he got his mustache and eyebrows. Marx was asked to apply the greasepaint mustache once more for You Bet Your Life when it came to television, but he refused, opting instead to grow a real one, which he wore for the rest of his life. By this time, his eyesight had weakened enough for him to actually need corrective lenses; before then, his eyeglasses had merely been a stage prop. He debuted this new, and now much-older, appearance in Love Happy, the Marx Brothers's last film as a comedy team. Marx did paint the old character mustache over his real one on a few rare occasions, including a TV sketch with Jackie Gleason on the latter's variety show in the 1960s (in which they performed a variation on the song "Mister Gallagher and Mister Shean," co-written by Marx's uncle Al Shean) and the 1968 Otto Preminger film Skidoo. In his late 70s at the time, Marx remarked on his appearance: "I looked like I was embalmed." He played a mob boss called "God" and, according to Marx, "both my performance and the film were God-awful!" The exaggerated walk, with one hand on the small of his back and his torso bent almost 90 degrees at the waist, was a parody of a fad from the 1880s and 1890s. Fashionable young men of the upper classes would affect a walk with their right hand held fast to the base of their spines, and with a slight lean forward at the waist and a very slight twist toward the right with the left shoulder, allowing the left hand to swing free with the gait. Edmund Morris, in his biography The Rise of Theodore Roosevelt, describes a young Roosevelt, newly elected to the State Assembly, walking into the House Chamber for the first time in this trendy, affected gait, somewhat to the amusement of the older and more rural members. Marx exaggerated this fad to a marked degree, and the comedic effect was enhanced by how out of date the fashion was by the 1940s and 1950s. Marx's three marriages ended in divorce. His first wife was chorus girl Ruth Johnson (m. 1920–1942). He was 29 and she was 19 at the time of their wedding. The couple had two children, Arthur Marx and Miriam Marx. His second wife was Kay Marvis (m. 1945–1951), née Catherine Dittig, former wife of Leo Gorcey. Marx was 54 and Kay was 21 at the time of their marriage. They had a daughter, Melinda Marx. His third wife was actress Eden Hartford (m. 1954–1969). He was 64 and she was 24 at the time of their wedding. During the early 1950s, Marx described his perfect woman: "Someone who looks like Marilyn Monroe and talks like George S. Kaufman." Marx was denied membership in an informal symphonietta of friends (including Harpo) organized by Ben Hecht, because he could play only the mandolin. When the group began its first rehearsal at Hecht's home, Marx rushed in and demanded silence from the "lousy amateurs". The musicians discovered him conducting the Los Angeles Symphony Orchestra in a performance of the overture to Tannhäuser in Hecht's living room. Marx was allowed to join the symphonietta. Later in life, Marx would sometimes note to talk show hosts, not entirely jokingly, that he was unable to actually insult anyone, because the target of his comment would assume that it was a Groucho-esque joke, and would laugh. Despite his lack of formal education, he wrote many books, including his autobiography, Groucho and Me, (1959) and Memoirs of a Mangy Lover (1963). He was a friend of such literary figures as Booth Tarkington, T. S. Eliot, and Carl Sandburg. Much of his personal correspondence with those and other figures is featured in the book The Groucho Letters (1967) with an introduction and commentary on the letters written by Marx, who donated his letters to the Library of Congress. His daughter Miriam published a collection of his letters to her in 1992 titled Love, Groucho. In Life with Groucho: A Son's Eye View, Arthur Marx relates that in his latter years, Groucho increasingly referred to himself by the name Hackenbush, referring to the character of that name he played in A Day at the Races. Marx made serious efforts to learn to play the guitar. In the 1932 film Horse Feathers, he performs the film's love theme "Everyone Says I Love You" for costar Thelma Todd on a Gibson L-5. In July 1937, an America-vs.-England pro-celebrity tennis doubles match was organized, featuring Marx and Ellsworth Vines playing against Charlie Chaplin and Fred Perry, to open the new clubhouse at the Beverly Hills Tennis Club. Marx appeared on court with twelve rackets and a suitcase, leaving Chaplin—who took tennis seriously—bemused, before he asked what was in it. Marx asked Chaplin what was in his, with Chaplin responding he didn't have one. Marx replied, "What kind of tennis player are you?" After playing only a few games, Marx sat on the court and unpacked an elaborate picnic lunch from his suitcase. Irving Berlin quipped: "The world would not be in such a snarl, had Marx been Groucho instead of Karl." In his book The Groucho Phile, Marx says "I've been a liberal Democrat all my life", and "I frankly find Democrats a better, more sympathetic crowd.... I'll continue to believe that Democrats have a greater regard for the common man than Republicans do". However, during an episode of Firing Line on July 7, 1967, Marx admitted to voting for Wendell Willkie, the Republican candidate for president in 1940, over Franklin D. Roosevelt, stating that he did not believe that any man should run for more than two terms. Marx mentioned in a television interview that he disliked the women's liberation movement. Marx's radio career was not as successful as his work on stage and in film, though historians such as Gerald Nachman and Michael Barson suggest that, in the case of the single-season Flywheel, Shyster, and Flywheel (1932), the failure may have been a combination of a poor time slot and the Marx Brothers' returning to Hollywood to make another film. In the mid-1940s, he weathered a depressing lull in his career. His radio show Blue Ribbon Town had failed, and he was unable to sell his proposed sitcom The Flotsam Family only to see it become a huge hit as The Life of Riley with William Bendix in the title role. By that time, the Marx Brothers as film performers had officially retired. Marx was scheduled to appear on a radio show with Bob Hope. Annoyed that he was made to wait in the green room for 40 minutes, he went on the air in a foul mood. Hope started by saying "Why, Groucho Marx! Groucho, what are you doing out here in the desert?" Marx retorted, "Huh, desert, I've been sitting in the dressing room for forty minutes! Some desert alright ...". Marx continued to ignore the script, ad-libbing at length, and took it well beyond its allotted time slot. Listening in on the show was producer John Guedel, who had a brainstorm. He approached Marx about doing a quiz show, to which Marx derisively retorted, "A quiz show? Only actors who are completely washed up resort to a quiz show!" Undeterred, Guedel proposed that the quiz would be only a backdrop for Marx's interviews of people, and the storm of ad-libbing that they would elicit. Marx replied, "Well, I've had no success in radio, and I can't hold on to a sponsor. At this point, I'll try anything!" You Bet Your Life debuted in October 1947 on ABC radio (which aired it from 1947 to 1949), sponsored by costume jewelry manufacturer Allen Gellman; and then on CBS (1949–50), and finally NBC. The show was on radio only from 1947 to 1950; on both radio and television from 1950 to 1960; and on television only, from 1960 to 1961. The show proved a huge hit, being one of the most popular on television by the mid-1950s, garnering a number one rating in 1953. With George Fenneman as his announcer and straight man, Marx entertained his audiences with rapier wit and improvised conversation with his guests. Since You Bet Your Life was mostly ad-libbed and unscripted — although writers did pre-interview the guests and feed Marx ready-made lines in advance — the producers insisted that the network prerecord it instead of it being broadcast live. There were three reasons for this: prerecording provided Marx with time to fish around for funny exchanges, any intervening dead spots could be edited out; and most importantly to protect the network from what was considered risqué, since Marx was a notorious loose cannon and known to say almost anything. The television show ran for 11 seasons until it was canceled in 1961. Ironically longtime major sponsor, automobile marque DeSoto went out of business for declining sales that same year. For the DeSoto ads, Marx would sometimes say: "Tell 'em Groucho sent you", or "Try a DeSoto before you decide." In the mid-1970s, episodes of the show were syndicated and rebroadcast as The Best of Groucho. The program's theme music was an instrumental version of "Hooray for Captain Spaulding," which became increasingly identified as Marx's personal theme song. A recording of the song with Marx and the Ken Lane singers with an orchestra directed by Victor Young was released in 1952. Another recording made by Marx during this aperiod was "The Funniest Song in the World," released on the Young People's Records label in 1949. It was a series of five original children's songs with a connecting narrative about a monkey and his fellow zoo creatures. One of Marx's most oft-quoted remarks may have occurred during a 1947 radio episode. Marx was interviewing Charlotte Story, who had borne 20 children. When Marx asked why she had chosen to raise such a large family, Mrs. Story is said to have replied, "I love my husband," to which Marx responded, "I love my cigar, but I take it out of my mouth once in a while." The remark was judged too risqué to be aired, according to the anecdote, and was edited out before broadcast. Charlotte Story and her husband Marion, indeed parents of 20 children, were real people who appeared on the program. Audio recordings of the interview exist, and a reference to cigars is made ("With each new kid, do you go around passing out cigars?"), but there is no evidence of the claimed remark. "I get credit all the time for things I never said," Marx told Roger Ebert in 1972. "You know that line in You Bet Your Life? The guy says he has seventeen kids and I say, 'I smoke a cigar, but I take it out of my mouth occasionally'? I never said that." Marx's 1976 memoir recounts the episode as fact, but co-writer Hector Arce relied mostly on sources other than Marx himself—who was by then in his mid eighties, in ill health and mentally compromised—and was probably unaware that Marx had specifically denied making the observation. Head writer Bernie Smith recalled in a 1996 interview that the remark was indeed made—but again, well after the fact. In 1946, as part of the marketing campaign for the Marx Brothers film A Night in Casablanca, Marx created a storyline that Warner Bros. Pictures threatened to sue him, contending that that title was too similar to their 1942 film Casablanca. Groucho wrote open letters "responding" to the four Warner brothers, including one in which he questions their own use of various words, such as: wondering if "in 1471, Ferdinand Balboa Warner, your great-great-grandfather,... stumbled on the shores of Africa and... named it Casablanca"; suggesting that "[David] Burbank's survivors aren't too happy with the fact that" Warner Bros. Burbank, California studios are called their "Burbank studios"; and even suggesting a Marx Brothers legal action addressing "What about 'Warner Brothers'? ... Professionally, we were brothers long before you were." On August 5, 1948, Marx's comedy play April Fool premiered at the Lobero Theatre in Santa Barbara, California, to mediocre reviews. Penned by Groucho Marx and Norman Krasna, the play was rewritten and retitled Time for Elizabeth, and opened at the Fulton Theatre in New York City on September 27, 1948, where it closed after only 8 performances. By the time You Bet Your Life debuted on TV on October 5, 1950, Marx had grown a real mustache (which he had already sported earlier in the films Copacabana and Love Happy). During a tour of Germany in 1958, accompanied by then-wife Eden, daughter Melinda, Robert Dwan and Dwan's daughter Judith, he climbed a pile of rubble that marked the site of Adolf Hitler's bunker, the site of Hitler's death, and performed a two-minute Charleston. He later remarked to Richard J. Anobile in The Marx Brothers Scrapbook, "Not much satisfaction after he killed six million Jews!" In 1960, Marx, a lifelong devotee of the comic operas of Gilbert and Sullivan, appeared as Ko-Ko, the Lord High Executioner, in a televised production of The Mikado on NBC's Bell Telephone Hour. A clip of this is in rotation on Classic Arts Showcase. Another TV show, Tell It to Groucho, premiered January 11, 1962, on CBS, but only lasted five months. On October 1, 1962, Marx, after acting as occasional guest host of The Tonight Show during the six-month interval between Jack Paar and Johnny Carson, introduced Carson as the new host. In 1964, Marx starred in the "Time for Elizabeth" episode of Bob Hope Presents the Chrysler Theatre, a truncated version of a play that he and Norman Krasna wrote in 1948. In 1965, Marx starred in a weekly show for British TV titled Groucho, broadcast on ITV. The program was along similar lines to You Bet Your Life, with Keith Fordyce taking on the Fenneman role. However, it was poorly received and lasted only 11 weeks. Marx appeared as a gangster named God in the comedy movie Skidoo (1968), directed by Otto Preminger, and starring Jackie Gleason and Carol Channing. It was released by the studio where the Marx Brothers began their film career, Paramount Pictures. The film received almost universally negative reviews. Writer Paul Krassner published a story in the February 1981 issue of High Times, relating how Marx prepared for the LSD-themed movie by taking a dose of the drug in Krassner's company, and had a moving, largely pleasant experience. Marx developed friendships with rock star Alice Cooper—the two were photographed together for Rolling Stone magazine—and television host Dick Cavett, becoming a frequent guest on Cavett's late-night talk show, even appearing in a one-man, 90-minute interview. He befriended Elton John when the British singer was staying in California in 1972, insisting on calling him "John Elton". According to writer Philip Norman, when Marx jokingly pointed his index fingers as if holding a pair of six-shooters, Elton John put up his hands and said, "Don't shoot me, I'm only the piano player," thereby naming the album he had just completed. A film poster for the Marx Bros. movie Go West is visible on the album cover photograph as an homage to Marx. Elton John accompanied Marx to a performance of Jesus Christ Superstar. As the lights went down, Marx called out, "Does it have a happy ending?" And during the Crucifixion scene, he declared, "This is sure to offend the Jews." Marx's previous work regained popularity; new books of transcribed conversations were published by Richard J. Anobile and Charlotte Chandler. In a BBC interview in 1975, Marx called his greatest achievement having a book selected for cultural preservation in the Library of Congress. In a Cavett interview in 1971, Marx said being published in The New Yorker under his own name, Julius Henry Marx, meant more than all the plays he appeared in. As a man who never had formal schooling, to have his writings declared culturally important was a point of great satisfaction. As he passed his 81st birthday in 1971, Marx became increasingly frail, physically and mentally, as a result of a succession of minor strokes and other health issues. In 1972, largely at the behest of his companion Erin Fleming, Marx staged a live one-man show at Carnegie Hall that was later released as a double album, An Evening with Groucho, on A&M Records. He also made an appearance in 1973 on a short-lived variety show hosted by Bill Cosby. Fleming's influence on Marx was controversial. Some close to Marx believed that she did much to revive his popularity, and the relationship with a younger woman boosted his ego and vitality. Others described her as a Svengali, exploiting an increasingly senile Marx in pursuit of her own stardom. Marx's children, particularly Arthur, felt strongly that Fleming was pushing their weak father beyond his physical and mental limits. Writer Mark Evanier concurred. On the 1974 Academy Awards telecast which was Groucho Marx's final major public appearance, Jack Lemmon presented him with an honorary Academy Award to a standing ovation. The award honored Harpo, Chico, and Zeppo as well: "in recognition of his brilliant creativity and for the unequalled achievements of the Marx Brothers in the art of motion picture comedy". Noticeably frail, Marx took a bow for his deceased brothers, saying that "I wish that Harpo and Chico could be here to share with me this great honor." (Zeppo, still alive, was in the audience). He also praised the late Margaret Dumont as a great straight woman who never understood any of his jokes. Marx's final appearance was a brief sketch with George Burns in the Bob Hope television special Joys (a parody of the 1975 movie Jaws) in March 1976. His health continued to decline the following year; when his younger brother Gummo died at age 83 on April 21, 1977, Marx was never told for fear of eliciting still further deterioration of his health. Marx maintained his irrepressible sense of humor to the very end, however. George Fenneman, his radio and TV announcer, good-natured foil, and lifelong friend, often related a story of one of his final visits to Marx's home: When the time came to end the visit, Fenneman lifted Marx from his wheelchair, put his arms around his torso, and began to "walk" the frail comedian backwards across the room towards his bed. As he did, he heard a weak voice in his ear: "Fenneman," whispered Marx, "you always were a lousy dancer." When a nurse approached him with a thermometer during his final hospitalization, explaining that she wanted to see if he had a temperature, he responded, "Don't be silly—everybody has a temperature." Actor Elliott Gould recalled a similar incident: "I recall the last time I saw Groucho, he was in the hospital, and he had tubes in his nose and what have you," he said. "And when he saw me, he was weak, but he was there; and he put his fingers on the tubes and played them like it was a clarinet. Groucho played the tubes for me, which brings me to tears." Marx was hospitalized at Cedars-Sinai Medical Center with pneumonia on June 22, 1977, and died there nearly two months later at the age of 86 on August 19, four months after Gummo's death. Media coverage of Groucho's death and legacy was overshadowed by the sudden death of Elvis Presley three days previously. His body was cremated and the ashes are interred in the Eden Memorial Park Cemetery in Los Angeles. He was survived by his three children and younger brother Zeppo, who outlived him by two years. His gravestone bears no epitaph but in one of his last interviews he suggested one: "Excuse me, I can't stand up." Litigation over his estate lasted into the 1980s. Eventually, his three children were awarded the bulk of the estate, while Erin Fleming, his companion during his final years, was ordered to repay $472,000. Groucho Marx was considered the most recognizable of the Marx Brothers. Groucho-like characters and references have appeared in popular culture both during and after his life, some aimed at audiences who may never have seen a Marx Brothers movie. Marx's trademark eyeglasses, nose, mustache, and cigar have become icons of comedy—glasses with fake noses and mustaches (referred to as "Groucho glasses", "nose-glasses," and other names) are sold by novelty and costume shops around the world. The cover of The Firesign Theatre's 1969 album, How Can You Be in Two Places at Once When You're Not Anywhere at All, subtitled All Hail Marx and Lennon, features images of Groucho Marx and John Lennon. Nat Perrin, close friend of Groucho Marx and writer of several Marx Brothers films, inspired John Astin's portrayal of Gomez Addams on the 1960s TV series The Addams Family with similarly thick mustache, eyebrows, sardonic remarks, backward logic, and ever-present cigar (pulled from his breast pocket already lit). Minnie's Boys, a 1970 Broadway musical, focused on the younger years of Marx (played by Lewis J. Stadlen), his brothers, and his mother (played by Shelley Winters). Marx received credit as the show's advisor and appeared on The Dick Cavett Show to promote the production. As Groucho Marx once said, 'Anyone can get old—all you have to do is to live long enough'. —Queen Elizabeth II speaking at her 80th birthday celebration in 2006. In 1972, at Cannes, Marx was made a Commander in the French Ordre des Arts et des Lettres, an honor he was very proud of. In a TV episode of MASH titled: "Yankee Doodle Doctor" Hawkeye Pierce (Alan Alda) portrays Marx in a parody movie along with Trapper John (Wayne Rogers) portraying Harpo Marx. A meeting with Elton John led to a press photo of Marx pointing both of his index fingers and thumbs at Elton like revolvers. John's spontaneous response of holding up his hands and replying, "Don't shoot me! I'm only the piano player!" was so amusing that Elton John reused it as the title of a 1973 album. An added Marx homage was that a poster for the Marx Brothers' movie Go West was included on the cover art. Marx was also known to influence the Warner Bros. cartoon character Bugs Bunny, who recited his famous line "Of course you realize this means war!" in two of his cartoons in the Looney Tunes series, Long-Haired Hare and Bully for Bugs, when his antagonist has offended him. Two albums by British rock band Queen, A Night at the Opera (1975) and A Day at the Races (1976), are named after Marx Brothers films. In March 1977, Marx invited Queen to visit him in his Los Angeles home; there they performed "'39" a cappella. A long-running ad campaign for Vlasic Pickles features an animated stork that imitates Marx's mannerisms and voice. On the famous Hollywood Sign in California, one of the "O"s is dedicated to Marx. Alice Cooper contributed over $27,000 to remodel the sign, in memory of his friend. Actor Frank Ferrante has performed as Groucho Marx on stage since 1986. He continues to tour under rights granted by the Marx family in a show entitled An Evening with Groucho in theaters throughout the United States and Canada with supporting actors and piano accompanist Jim Furmston. In the late 1980s, Ferrante starred as Marx in the off-Broadway and London show Groucho: A Life in Revue, penned by Marx's son Arthur. Ferrante portrayed the comedian from age 15 to 85. The show was later filmed for PBS in 2001. In 1982, Gabe Kaplan filmed a version of the same show, entitled Groucho. In the Hungarian dubbed version of Woody Allen's film Annie Hall, a famous quotation told by Alvy Singer (Allen) at the beginning of the film is not attributed to Groucho Marx as in the original, but to Buster Keaton. The reason was that in communist Hungary, the name 'Marx' was associated with Karl Marx, and the name was not allowed to be used in such a light, humorous context. Woody Allen's 1996 musical Everyone Says I Love You, in addition to being named for one of Marx's signature songs, ends with a Groucho-themed New Year's Eve party in Paris, which some of the stars, including Allen and Goldie Hawn, attend in full Groucho costume. The highlight of the scene is an ensemble song-and-dance performance of "Hooray for Captain Spaulding"—done entirely in French. GrouchoMostra "Dylan Dog e motori, gioie e orrori" - panoramio (26).jpg In 2008, Minnie's Boys was remounted Off-Broadway with Erik Liberman as Groucho and Pamela Myers as Minnie Marx. Liberman later played Marx in a musical based on Flywheel, Shyster, and Flywheel called The Most Ridiculous Thing You Ever Hoid (2010) and at the Obama White House. Groucho, a supporting character in the Italian horror comics series Dylan Dog, is a Groucho Marx impersonator whose character became his permanent personality, and he works with Dylan Dog as his professional sidekick. In the English-language version by Dark Horse Comics, to avoid legal complications regarding Groucho Marx's estate, the art was altered so that Groucho no longer sports the Marx brother's signature moustache, and was renamed Felix. Throughout the M*A*S*H television series, several Groucho homage traits are mirrored in Alan Alda's portrayal of Hawkeye, including the 1972 season one episode "Yankee Doodle Doctor" that had a full Groucho impression complete with nose, moustache and glasses.
[ { "paragraph_id": 0, "text": "Julius Henry \"Groucho\" Marx (/ˈɡraʊtʃoʊ/; October 2, 1890 – August 19, 1977) was an American comedian, actor, writer, and singer who performed in film, television, radio, stage, and vaudeville. He was a master of quick wit and is generally considered to have been one of America's greatest comedians.", "title": "" }, { "paragraph_id": 1, "text": "He made 13 feature films as a team with his brothers, who performed under the name the Marx Brothers, of whom he was the third-born. He also had a successful solo career primarily on radio and television, most notably as the host of the game show You Bet Your Life.", "title": "" }, { "paragraph_id": 2, "text": "His distinctive appearance, carried over from his days in vaudeville, included quirks such as an exaggerated stooped posture, spectacles, cigar, and a thick greasepaint mustache (later a real mustache) and eyebrows. These exaggerated features resulted in the creation of one of the most recognizable and ubiquitous novelty disguises, known as Groucho glasses: a one-piece mask consisting of horn-rimmed glasses, a large plastic nose, bushy eyebrows and mustache.", "title": "" }, { "paragraph_id": 3, "text": "Julius Henry Marx was born on October 2, 1890, in Manhattan, New York City. Marx stated that he was born in a room above a butcher's shop on East 78th Street, \"Between Lexington & 3rd\", as he told Dick Cavett in a 1969 television interview. The Marx children grew up in a turn-of-the-century building at 179 East 93rd Street off Lexington Avenue in a neighborhood now known as Carnegie Hill on the Upper East Side of the borough of Manhattan. His older brother Harpo, in his memoir Harpo Speaks, called the building \"the first real home I knew\".It was populated with European immigrants, mostly artisans. Just across the street were the oldest brownstones in the area, owned by people including the well-connected Loew Brothers and William Orth. The Marx family lived there \"for about 14 years,\" Groucho also told Cavett.", "title": "Early life" }, { "paragraph_id": 4, "text": "Marx's family was Jewish. His mother was Miene \"Minnie\" Schoenberg, whose family came from Dornum in northern Germany when she was 16 years old. His father was Simon \"Sam\" Marx, who changed his name from Marrix, and was called \"Frenchie\" by his sons throughout his life, because he and his family came from Alsace in France. Minnie's brother was Al Schoenberg, who shortened his name to Al Shean when he went into show business as half of Gallagher and Shean, a noted vaudeville act of the early 20th century. According to Marx, when Shean visited, he would throw the local waifs a few coins so that when he knocked at the door he would be surrounded by adoring fans. Marx and his brothers respected his opinions and asked him on several occasions to write some material for them.", "title": "Early life" }, { "paragraph_id": 5, "text": "Minnie Marx did not have an entertainment industry career but had intense ambition for her sons to go on the stage like their uncle. While pushing her second son Leonard (Chico Marx) in piano lessons, she found that Julius had a pleasant soprano voice and the ability to remain on key. Julius's early career goal was to become a doctor, but the family's need for income forced him out of school at the age of twelve. By that time young Julius had become a voracious reader, particularly fond of Horatio Alger. Marx continued to overcome his lack of formal education by becoming very well-read.", "title": "Early life" }, { "paragraph_id": 6, "text": "After a few stabs at entry-level office work and jobs suitable for adolescents, Julius took to the stage as a boy singer with the Gene Leroy Trio, debuting at the Ramona Theatre in Grand Rapids, Michigan, on July 16, 1905. Marx reputedly claimed that he was \"hopelessly average\" as a vaudevillian, but this was typical Marx, wisecracking in his true form. By 1909, Minnie Marx had assembled her sons into an undistinguished vaudeville singing group billed as \"The Four Nightingales\". The brothers Julius, Milton (Gummo Marx) and Arthur (originally Adolph, but Harpo Marx from 1911) and another boy singer, Lou Levy, traveled the U.S. vaudeville circuits to little fanfare. After exhausting their prospects in the East, the family moved to La Grange, Illinois, to play the Midwest.", "title": "Early life" }, { "paragraph_id": 7, "text": "After a particularly dispiriting performance in Nacogdoches, Texas, Julius, Milton, and Arthur began cracking jokes onstage for their own amusement. Much to their surprise, the audience liked them better as comedians than as singers. They modified the then-popular Gus Edwards comedy skit \"School Days\" and renamed it \"Fun In Hi Skule\". The Marx Brothers performed variations on this routine for the next seven years.", "title": "Early life" }, { "paragraph_id": 8, "text": "For a time in vaudeville, all the brothers performed using ethnic accents. Leonard, the oldest, developed the Italian accent he used as Chico Marx to convince some roving bullies that he was Italian, not Jewish. Arthur, the next oldest, donned a curly red wig and became \"Patsy Brannigan\", a stereotypical Irish character. His discomfort when speaking on stage led to his uncle Al Shean's suggestion that he stop speaking altogether and play the role in mime. Julius Marx's character from \"Fun In Hi Skule\" was an ethnic German, so Julius played him with a German accent. After the sinking of the RMS Lusitania in 1915, public anti-German sentiment was widespread, and Marx's German character was booed, so he quickly dropped the accent and developed the fast-talking wise-guy character that became his trademark.", "title": "Early life" }, { "paragraph_id": 9, "text": "The Marx Brothers became the biggest comedic stars of the Palace Theatre in New York, which billed itself as the \"Valhalla of Vaudeville\". Brother Chico's deal-making skills resulted in three hit plays on Broadway. No other comedy routine had ever so infected the Broadway circuit. All of this stage work predated their Hollywood career. By the time the Marxes made their first movie, they were already major stars with sharply honed skills; and by the time Groucho was relaunched to stardom in television on You Bet Your Life, he had been performing successfully for half a century.", "title": "Early life" }, { "paragraph_id": 10, "text": "Marx started his career in vaudeville in 1905 when he joined up with an act called The Leroy Trio. He answered a newspaper want ad by a man named Robin Leroy who was looking for a boy to join his group as a singer. Marx was hired along with fellow vaudeville actor Johnny Morris. Through this act, Marx got his first taste of life as a vaudeville performer. In 1909, Marx and his brothers had become a group act, at first called The Three Nightingales and later The Four Nightingales. The brothers' mother, Minnie Marx, was the group's manager, putting them together and booking their shows. The group had a rocky start, performing in less than adequate venues and rarely, if ever, being paid for their performances. Eventually brother Milton (Gummo) left the act to serve in World War I and was replaced by Herbert (Zeppo), and the group became known as the Marx Brothers. Their first successful show was Fun In Hi Skule (1910).", "title": "Career" }, { "paragraph_id": 11, "text": "Marx made 26 movies, including 13 with his brothers Chico and Harpo. Marx developed a routine as a wisecracking hustler with a distinctive chicken-walking lope, an exaggerated greasepaint mustache and eyebrows and an ever-present cigar, improvising insults to stuffy dowagers (frequently played by Margaret Dumont) and anyone else who stood in his way. As the Marx Brothers, he and his brothers starred in a series of popular stage shows and movies.", "title": "Career" }, { "paragraph_id": 12, "text": "Their first movie was a silent film made in 1921 that was never released, and is believed to have been destroyed at the time. A decade later, the team made two of their Broadway hits—The Cocoanuts and Animal Crackers—into movies. Other successful films were Monkey Business, Horse Feathers, Duck Soup and A Night at the Opera. One quip from Marx concerned his response to Sam Wood, the director of A Night at the Opera. Furious with the Marx Brothers' ad-libs and antics on the set, Wood yelled in disgust: \"You can't make an actor out of clay.\" Marx responded, \"Nor a director out of Wood.\"", "title": "Career" }, { "paragraph_id": 13, "text": "Marx also worked as a radio comedian and show host. One of his earliest stints was a short-lived series in 1932, Flywheel, Shyster and Flywheel, costarring Chico. Though most of the scripts and discs were thought to have been destroyed, all but one of the scripts were found in 1988 in the Library of Congress. In 1947, Marx was asked to host a radio quiz program You Bet Your Life. It was broadcast by ABC and then CBS before moving to NBC. It moved from radio to television on October 5, 1950, and ran for eleven years. Filmed before an audience, the show consisted of Marx bantering with the contestants and ad-libbing jokes before briefly quizzing them. The show was responsible for popularizing the phrases \"Say the secret word and the duck will come down and give you fifty dollars,\" \"Who's buried in Grant's Tomb?\" and \"What color is the White House?\" (asked to reward a losing contestant a consolation prize).", "title": "Career" }, { "paragraph_id": 14, "text": "Throughout his career Marx introduced a number of memorable songs in films, including \"Hooray for Captain Spaulding\" and \"Hello, I Must Be Going\", in Animal Crackers, \"Whatever It Is, I'm Against It\", \"Everyone Says I Love You\" and \"Lydia the Tattooed Lady\". Frank Sinatra, who once quipped that the only thing he could do better than Marx was sing, made a film with Marx and Jane Russell in 1951 entitled Double Dynamite.", "title": "Career" }, { "paragraph_id": 15, "text": "In public and off-camera, Harpo and Chico were hard to recognize without their wigs and costumes, and it was almost impossible for fans to recognize Groucho without his trademark eyeglasses, fake eyebrows, and mustache.", "title": "Career" }, { "paragraph_id": 16, "text": "The greasepaint mustache and eyebrows originated spontaneously prior to a vaudeville performance in the early 1920s when he did not have time to apply the pasted-on mustache he had been using (or, according to his autobiography, simply did not enjoy the removal of the mustache because of the effects of tearing an adhesive bandage off the same patch of skin every night). After applying the greasepaint mustache, a quick glance in the mirror revealed his natural hair eyebrows were too undertoned and did not match the rest of his face, so Marx added the greasepaint to his eyebrows and headed for the stage. The absurdity of the greasepaint was never discussed on-screen, but in a famous scene in Duck Soup, where both Chicolini (Chico) and Pinky (Harpo) disguise themselves as Groucho, they are briefly seen applying the greasepaint, implicitly answering any question a viewer might have had about where he got his mustache and eyebrows.", "title": "Career" }, { "paragraph_id": 17, "text": "Marx was asked to apply the greasepaint mustache once more for You Bet Your Life when it came to television, but he refused, opting instead to grow a real one, which he wore for the rest of his life. By this time, his eyesight had weakened enough for him to actually need corrective lenses; before then, his eyeglasses had merely been a stage prop. He debuted this new, and now much-older, appearance in Love Happy, the Marx Brothers's last film as a comedy team.", "title": "Career" }, { "paragraph_id": 18, "text": "Marx did paint the old character mustache over his real one on a few rare occasions, including a TV sketch with Jackie Gleason on the latter's variety show in the 1960s (in which they performed a variation on the song \"Mister Gallagher and Mister Shean,\" co-written by Marx's uncle Al Shean) and the 1968 Otto Preminger film Skidoo. In his late 70s at the time, Marx remarked on his appearance: \"I looked like I was embalmed.\" He played a mob boss called \"God\" and, according to Marx, \"both my performance and the film were God-awful!\"", "title": "Career" }, { "paragraph_id": 19, "text": "The exaggerated walk, with one hand on the small of his back and his torso bent almost 90 degrees at the waist, was a parody of a fad from the 1880s and 1890s. Fashionable young men of the upper classes would affect a walk with their right hand held fast to the base of their spines, and with a slight lean forward at the waist and a very slight twist toward the right with the left shoulder, allowing the left hand to swing free with the gait. Edmund Morris, in his biography The Rise of Theodore Roosevelt, describes a young Roosevelt, newly elected to the State Assembly, walking into the House Chamber for the first time in this trendy, affected gait, somewhat to the amusement of the older and more rural members. Marx exaggerated this fad to a marked degree, and the comedic effect was enhanced by how out of date the fashion was by the 1940s and 1950s.", "title": "Career" }, { "paragraph_id": 20, "text": "Marx's three marriages ended in divorce. His first wife was chorus girl Ruth Johnson (m. 1920–1942). He was 29 and she was 19 at the time of their wedding. The couple had two children, Arthur Marx and Miriam Marx. His second wife was Kay Marvis (m. 1945–1951), née Catherine Dittig, former wife of Leo Gorcey. Marx was 54 and Kay was 21 at the time of their marriage. They had a daughter, Melinda Marx. His third wife was actress Eden Hartford (m. 1954–1969). He was 64 and she was 24 at the time of their wedding.", "title": "Personal life" }, { "paragraph_id": 21, "text": "During the early 1950s, Marx described his perfect woman: \"Someone who looks like Marilyn Monroe and talks like George S. Kaufman.\"", "title": "Personal life" }, { "paragraph_id": 22, "text": "Marx was denied membership in an informal symphonietta of friends (including Harpo) organized by Ben Hecht, because he could play only the mandolin. When the group began its first rehearsal at Hecht's home, Marx rushed in and demanded silence from the \"lousy amateurs\". The musicians discovered him conducting the Los Angeles Symphony Orchestra in a performance of the overture to Tannhäuser in Hecht's living room. Marx was allowed to join the symphonietta.", "title": "Personal life" }, { "paragraph_id": 23, "text": "Later in life, Marx would sometimes note to talk show hosts, not entirely jokingly, that he was unable to actually insult anyone, because the target of his comment would assume that it was a Groucho-esque joke, and would laugh.", "title": "Personal life" }, { "paragraph_id": 24, "text": "Despite his lack of formal education, he wrote many books, including his autobiography, Groucho and Me, (1959) and Memoirs of a Mangy Lover (1963). He was a friend of such literary figures as Booth Tarkington, T. S. Eliot, and Carl Sandburg. Much of his personal correspondence with those and other figures is featured in the book The Groucho Letters (1967) with an introduction and commentary on the letters written by Marx, who donated his letters to the Library of Congress. His daughter Miriam published a collection of his letters to her in 1992 titled Love, Groucho.", "title": "Personal life" }, { "paragraph_id": 25, "text": "In Life with Groucho: A Son's Eye View, Arthur Marx relates that in his latter years, Groucho increasingly referred to himself by the name Hackenbush, referring to the character of that name he played in A Day at the Races.", "title": "Personal life" }, { "paragraph_id": 26, "text": "Marx made serious efforts to learn to play the guitar. In the 1932 film Horse Feathers, he performs the film's love theme \"Everyone Says I Love You\" for costar Thelma Todd on a Gibson L-5.", "title": "Personal life" }, { "paragraph_id": 27, "text": "In July 1937, an America-vs.-England pro-celebrity tennis doubles match was organized, featuring Marx and Ellsworth Vines playing against Charlie Chaplin and Fred Perry, to open the new clubhouse at the Beverly Hills Tennis Club. Marx appeared on court with twelve rackets and a suitcase, leaving Chaplin—who took tennis seriously—bemused, before he asked what was in it. Marx asked Chaplin what was in his, with Chaplin responding he didn't have one. Marx replied, \"What kind of tennis player are you?\" After playing only a few games, Marx sat on the court and unpacked an elaborate picnic lunch from his suitcase.", "title": "Personal life" }, { "paragraph_id": 28, "text": "Irving Berlin quipped: \"The world would not be in such a snarl, had Marx been Groucho instead of Karl.\" In his book The Groucho Phile, Marx says \"I've been a liberal Democrat all my life\", and \"I frankly find Democrats a better, more sympathetic crowd.... I'll continue to believe that Democrats have a greater regard for the common man than Republicans do\". However, during an episode of Firing Line on July 7, 1967, Marx admitted to voting for Wendell Willkie, the Republican candidate for president in 1940, over Franklin D. Roosevelt, stating that he did not believe that any man should run for more than two terms. Marx mentioned in a television interview that he disliked the women's liberation movement.", "title": "Personal life" }, { "paragraph_id": 29, "text": "Marx's radio career was not as successful as his work on stage and in film, though historians such as Gerald Nachman and Michael Barson suggest that, in the case of the single-season Flywheel, Shyster, and Flywheel (1932), the failure may have been a combination of a poor time slot and the Marx Brothers' returning to Hollywood to make another film.", "title": "Later years" }, { "paragraph_id": 30, "text": "In the mid-1940s, he weathered a depressing lull in his career. His radio show Blue Ribbon Town had failed, and he was unable to sell his proposed sitcom The Flotsam Family only to see it become a huge hit as The Life of Riley with William Bendix in the title role. By that time, the Marx Brothers as film performers had officially retired.", "title": "Later years" }, { "paragraph_id": 31, "text": "Marx was scheduled to appear on a radio show with Bob Hope. Annoyed that he was made to wait in the green room for 40 minutes, he went on the air in a foul mood. Hope started by saying \"Why, Groucho Marx! Groucho, what are you doing out here in the desert?\" Marx retorted, \"Huh, desert, I've been sitting in the dressing room for forty minutes! Some desert alright ...\". Marx continued to ignore the script, ad-libbing at length, and took it well beyond its allotted time slot.", "title": "Later years" }, { "paragraph_id": 32, "text": "Listening in on the show was producer John Guedel, who had a brainstorm. He approached Marx about doing a quiz show, to which Marx derisively retorted, \"A quiz show? Only actors who are completely washed up resort to a quiz show!\" Undeterred, Guedel proposed that the quiz would be only a backdrop for Marx's interviews of people, and the storm of ad-libbing that they would elicit. Marx replied, \"Well, I've had no success in radio, and I can't hold on to a sponsor. At this point, I'll try anything!\"", "title": "Later years" }, { "paragraph_id": 33, "text": "You Bet Your Life debuted in October 1947 on ABC radio (which aired it from 1947 to 1949), sponsored by costume jewelry manufacturer Allen Gellman; and then on CBS (1949–50), and finally NBC. The show was on radio only from 1947 to 1950; on both radio and television from 1950 to 1960; and on television only, from 1960 to 1961. The show proved a huge hit, being one of the most popular on television by the mid-1950s, garnering a number one rating in 1953. With George Fenneman as his announcer and straight man, Marx entertained his audiences with rapier wit and improvised conversation with his guests. Since You Bet Your Life was mostly ad-libbed and unscripted — although writers did pre-interview the guests and feed Marx ready-made lines in advance — the producers insisted that the network prerecord it instead of it being broadcast live. There were three reasons for this: prerecording provided Marx with time to fish around for funny exchanges, any intervening dead spots could be edited out; and most importantly to protect the network from what was considered risqué, since Marx was a notorious loose cannon and known to say almost anything. The television show ran for 11 seasons until it was canceled in 1961. Ironically longtime major sponsor, automobile marque DeSoto went out of business for declining sales that same year. For the DeSoto ads, Marx would sometimes say: \"Tell 'em Groucho sent you\", or \"Try a DeSoto before you decide.\" In the mid-1970s, episodes of the show were syndicated and rebroadcast as The Best of Groucho.", "title": "Later years" }, { "paragraph_id": 34, "text": "The program's theme music was an instrumental version of \"Hooray for Captain Spaulding,\" which became increasingly identified as Marx's personal theme song. A recording of the song with Marx and the Ken Lane singers with an orchestra directed by Victor Young was released in 1952. Another recording made by Marx during this aperiod was \"The Funniest Song in the World,\" released on the Young People's Records label in 1949. It was a series of five original children's songs with a connecting narrative about a monkey and his fellow zoo creatures.", "title": "Later years" }, { "paragraph_id": 35, "text": "One of Marx's most oft-quoted remarks may have occurred during a 1947 radio episode. Marx was interviewing Charlotte Story, who had borne 20 children. When Marx asked why she had chosen to raise such a large family, Mrs. Story is said to have replied, \"I love my husband,\" to which Marx responded, \"I love my cigar, but I take it out of my mouth once in a while.\" The remark was judged too risqué to be aired, according to the anecdote, and was edited out before broadcast. Charlotte Story and her husband Marion, indeed parents of 20 children, were real people who appeared on the program. Audio recordings of the interview exist, and a reference to cigars is made (\"With each new kid, do you go around passing out cigars?\"), but there is no evidence of the claimed remark. \"I get credit all the time for things I never said,\" Marx told Roger Ebert in 1972. \"You know that line in You Bet Your Life? The guy says he has seventeen kids and I say, 'I smoke a cigar, but I take it out of my mouth occasionally'? I never said that.\" Marx's 1976 memoir recounts the episode as fact, but co-writer Hector Arce relied mostly on sources other than Marx himself—who was by then in his mid eighties, in ill health and mentally compromised—and was probably unaware that Marx had specifically denied making the observation. Head writer Bernie Smith recalled in a 1996 interview that the remark was indeed made—but again, well after the fact.", "title": "Later years" }, { "paragraph_id": 36, "text": "In 1946, as part of the marketing campaign for the Marx Brothers film A Night in Casablanca, Marx created a storyline that Warner Bros. Pictures threatened to sue him, contending that that title was too similar to their 1942 film Casablanca. Groucho wrote open letters \"responding\" to the four Warner brothers, including one in which he questions their own use of various words, such as: wondering if \"in 1471, Ferdinand Balboa Warner, your great-great-grandfather,... stumbled on the shores of Africa and... named it Casablanca\"; suggesting that \"[David] Burbank's survivors aren't too happy with the fact that\" Warner Bros. Burbank, California studios are called their \"Burbank studios\"; and even suggesting a Marx Brothers legal action addressing \"What about 'Warner Brothers'? ... Professionally, we were brothers long before you were.\"", "title": "Later years" }, { "paragraph_id": 37, "text": "On August 5, 1948, Marx's comedy play April Fool premiered at the Lobero Theatre in Santa Barbara, California, to mediocre reviews. Penned by Groucho Marx and Norman Krasna, the play was rewritten and retitled Time for Elizabeth, and opened at the Fulton Theatre in New York City on September 27, 1948, where it closed after only 8 performances.", "title": "Later years" }, { "paragraph_id": 38, "text": "By the time You Bet Your Life debuted on TV on October 5, 1950, Marx had grown a real mustache (which he had already sported earlier in the films Copacabana and Love Happy).", "title": "Later years" }, { "paragraph_id": 39, "text": "During a tour of Germany in 1958, accompanied by then-wife Eden, daughter Melinda, Robert Dwan and Dwan's daughter Judith, he climbed a pile of rubble that marked the site of Adolf Hitler's bunker, the site of Hitler's death, and performed a two-minute Charleston. He later remarked to Richard J. Anobile in The Marx Brothers Scrapbook, \"Not much satisfaction after he killed six million Jews!\"", "title": "Later years" }, { "paragraph_id": 40, "text": "In 1960, Marx, a lifelong devotee of the comic operas of Gilbert and Sullivan, appeared as Ko-Ko, the Lord High Executioner, in a televised production of The Mikado on NBC's Bell Telephone Hour. A clip of this is in rotation on Classic Arts Showcase.", "title": "Later years" }, { "paragraph_id": 41, "text": "Another TV show, Tell It to Groucho, premiered January 11, 1962, on CBS, but only lasted five months. On October 1, 1962, Marx, after acting as occasional guest host of The Tonight Show during the six-month interval between Jack Paar and Johnny Carson, introduced Carson as the new host.", "title": "Later years" }, { "paragraph_id": 42, "text": "In 1964, Marx starred in the \"Time for Elizabeth\" episode of Bob Hope Presents the Chrysler Theatre, a truncated version of a play that he and Norman Krasna wrote in 1948.", "title": "Later years" }, { "paragraph_id": 43, "text": "In 1965, Marx starred in a weekly show for British TV titled Groucho, broadcast on ITV. The program was along similar lines to You Bet Your Life, with Keith Fordyce taking on the Fenneman role. However, it was poorly received and lasted only 11 weeks.", "title": "Later years" }, { "paragraph_id": 44, "text": "Marx appeared as a gangster named God in the comedy movie Skidoo (1968), directed by Otto Preminger, and starring Jackie Gleason and Carol Channing. It was released by the studio where the Marx Brothers began their film career, Paramount Pictures. The film received almost universally negative reviews. Writer Paul Krassner published a story in the February 1981 issue of High Times, relating how Marx prepared for the LSD-themed movie by taking a dose of the drug in Krassner's company, and had a moving, largely pleasant experience.", "title": "Later years" }, { "paragraph_id": 45, "text": "Marx developed friendships with rock star Alice Cooper—the two were photographed together for Rolling Stone magazine—and television host Dick Cavett, becoming a frequent guest on Cavett's late-night talk show, even appearing in a one-man, 90-minute interview. He befriended Elton John when the British singer was staying in California in 1972, insisting on calling him \"John Elton\". According to writer Philip Norman, when Marx jokingly pointed his index fingers as if holding a pair of six-shooters, Elton John put up his hands and said, \"Don't shoot me, I'm only the piano player,\" thereby naming the album he had just completed. A film poster for the Marx Bros. movie Go West is visible on the album cover photograph as an homage to Marx. Elton John accompanied Marx to a performance of Jesus Christ Superstar. As the lights went down, Marx called out, \"Does it have a happy ending?\" And during the Crucifixion scene, he declared, \"This is sure to offend the Jews.\"", "title": "Later years" }, { "paragraph_id": 46, "text": "Marx's previous work regained popularity; new books of transcribed conversations were published by Richard J. Anobile and Charlotte Chandler. In a BBC interview in 1975, Marx called his greatest achievement having a book selected for cultural preservation in the Library of Congress. In a Cavett interview in 1971, Marx said being published in The New Yorker under his own name, Julius Henry Marx, meant more than all the plays he appeared in. As a man who never had formal schooling, to have his writings declared culturally important was a point of great satisfaction.", "title": "Later years" }, { "paragraph_id": 47, "text": "As he passed his 81st birthday in 1971, Marx became increasingly frail, physically and mentally, as a result of a succession of minor strokes and other health issues. In 1972, largely at the behest of his companion Erin Fleming, Marx staged a live one-man show at Carnegie Hall that was later released as a double album, An Evening with Groucho, on A&M Records. He also made an appearance in 1973 on a short-lived variety show hosted by Bill Cosby. Fleming's influence on Marx was controversial. Some close to Marx believed that she did much to revive his popularity, and the relationship with a younger woman boosted his ego and vitality. Others described her as a Svengali, exploiting an increasingly senile Marx in pursuit of her own stardom. Marx's children, particularly Arthur, felt strongly that Fleming was pushing their weak father beyond his physical and mental limits. Writer Mark Evanier concurred.", "title": "Later years" }, { "paragraph_id": 48, "text": "On the 1974 Academy Awards telecast which was Groucho Marx's final major public appearance, Jack Lemmon presented him with an honorary Academy Award to a standing ovation. The award honored Harpo, Chico, and Zeppo as well: \"in recognition of his brilliant creativity and for the unequalled achievements of the Marx Brothers in the art of motion picture comedy\". Noticeably frail, Marx took a bow for his deceased brothers, saying that \"I wish that Harpo and Chico could be here to share with me this great honor.\" (Zeppo, still alive, was in the audience). He also praised the late Margaret Dumont as a great straight woman who never understood any of his jokes. Marx's final appearance was a brief sketch with George Burns in the Bob Hope television special Joys (a parody of the 1975 movie Jaws) in March 1976. His health continued to decline the following year; when his younger brother Gummo died at age 83 on April 21, 1977, Marx was never told for fear of eliciting still further deterioration of his health.", "title": "Later years" }, { "paragraph_id": 49, "text": "Marx maintained his irrepressible sense of humor to the very end, however. George Fenneman, his radio and TV announcer, good-natured foil, and lifelong friend, often related a story of one of his final visits to Marx's home: When the time came to end the visit, Fenneman lifted Marx from his wheelchair, put his arms around his torso, and began to \"walk\" the frail comedian backwards across the room towards his bed. As he did, he heard a weak voice in his ear: \"Fenneman,\" whispered Marx, \"you always were a lousy dancer.\" When a nurse approached him with a thermometer during his final hospitalization, explaining that she wanted to see if he had a temperature, he responded, \"Don't be silly—everybody has a temperature.\" Actor Elliott Gould recalled a similar incident: \"I recall the last time I saw Groucho, he was in the hospital, and he had tubes in his nose and what have you,\" he said. \"And when he saw me, he was weak, but he was there; and he put his fingers on the tubes and played them like it was a clarinet. Groucho played the tubes for me, which brings me to tears.\"", "title": "Later years" }, { "paragraph_id": 50, "text": "Marx was hospitalized at Cedars-Sinai Medical Center with pneumonia on June 22, 1977, and died there nearly two months later at the age of 86 on August 19, four months after Gummo's death. Media coverage of Groucho's death and legacy was overshadowed by the sudden death of Elvis Presley three days previously.", "title": "Death" }, { "paragraph_id": 51, "text": "His body was cremated and the ashes are interred in the Eden Memorial Park Cemetery in Los Angeles. He was survived by his three children and younger brother Zeppo, who outlived him by two years. His gravestone bears no epitaph but in one of his last interviews he suggested one: \"Excuse me, I can't stand up.\"", "title": "Death" }, { "paragraph_id": 52, "text": "Litigation over his estate lasted into the 1980s. Eventually, his three children were awarded the bulk of the estate, while Erin Fleming, his companion during his final years, was ordered to repay $472,000.", "title": "Death" }, { "paragraph_id": 53, "text": "Groucho Marx was considered the most recognizable of the Marx Brothers. Groucho-like characters and references have appeared in popular culture both during and after his life, some aimed at audiences who may never have seen a Marx Brothers movie. Marx's trademark eyeglasses, nose, mustache, and cigar have become icons of comedy—glasses with fake noses and mustaches (referred to as \"Groucho glasses\", \"nose-glasses,\" and other names) are sold by novelty and costume shops around the world.", "title": "Legacy" }, { "paragraph_id": 54, "text": "The cover of The Firesign Theatre's 1969 album, How Can You Be in Two Places at Once When You're Not Anywhere at All, subtitled All Hail Marx and Lennon, features images of Groucho Marx and John Lennon.", "title": "Legacy" }, { "paragraph_id": 55, "text": "Nat Perrin, close friend of Groucho Marx and writer of several Marx Brothers films, inspired John Astin's portrayal of Gomez Addams on the 1960s TV series The Addams Family with similarly thick mustache, eyebrows, sardonic remarks, backward logic, and ever-present cigar (pulled from his breast pocket already lit).", "title": "Legacy" }, { "paragraph_id": 56, "text": "Minnie's Boys, a 1970 Broadway musical, focused on the younger years of Marx (played by Lewis J. Stadlen), his brothers, and his mother (played by Shelley Winters). Marx received credit as the show's advisor and appeared on The Dick Cavett Show to promote the production.", "title": "Legacy" }, { "paragraph_id": 57, "text": "As Groucho Marx once said, 'Anyone can get old—all you have to do is to live long enough'.", "title": "Legacy" }, { "paragraph_id": 58, "text": "—Queen Elizabeth II speaking at her 80th birthday celebration in 2006.", "title": "Legacy" }, { "paragraph_id": 59, "text": "In 1972, at Cannes, Marx was made a Commander in the French Ordre des Arts et des Lettres, an honor he was very proud of. In a TV episode of MASH titled: \"Yankee Doodle Doctor\" Hawkeye Pierce (Alan Alda) portrays Marx in a parody movie along with Trapper John (Wayne Rogers) portraying Harpo Marx.", "title": "Legacy" }, { "paragraph_id": 60, "text": "A meeting with Elton John led to a press photo of Marx pointing both of his index fingers and thumbs at Elton like revolvers. John's spontaneous response of holding up his hands and replying, \"Don't shoot me! I'm only the piano player!\" was so amusing that Elton John reused it as the title of a 1973 album. An added Marx homage was that a poster for the Marx Brothers' movie Go West was included on the cover art.", "title": "Legacy" }, { "paragraph_id": 61, "text": "Marx was also known to influence the Warner Bros. cartoon character Bugs Bunny, who recited his famous line \"Of course you realize this means war!\" in two of his cartoons in the Looney Tunes series, Long-Haired Hare and Bully for Bugs, when his antagonist has offended him.", "title": "Legacy" }, { "paragraph_id": 62, "text": "Two albums by British rock band Queen, A Night at the Opera (1975) and A Day at the Races (1976), are named after Marx Brothers films. In March 1977, Marx invited Queen to visit him in his Los Angeles home; there they performed \"'39\" a cappella.", "title": "Legacy" }, { "paragraph_id": 63, "text": "A long-running ad campaign for Vlasic Pickles features an animated stork that imitates Marx's mannerisms and voice. On the famous Hollywood Sign in California, one of the \"O\"s is dedicated to Marx. Alice Cooper contributed over $27,000 to remodel the sign, in memory of his friend.", "title": "Legacy" }, { "paragraph_id": 64, "text": "Actor Frank Ferrante has performed as Groucho Marx on stage since 1986. He continues to tour under rights granted by the Marx family in a show entitled An Evening with Groucho in theaters throughout the United States and Canada with supporting actors and piano accompanist Jim Furmston. In the late 1980s, Ferrante starred as Marx in the off-Broadway and London show Groucho: A Life in Revue, penned by Marx's son Arthur. Ferrante portrayed the comedian from age 15 to 85. The show was later filmed for PBS in 2001. In 1982, Gabe Kaplan filmed a version of the same show, entitled Groucho.", "title": "Legacy" }, { "paragraph_id": 65, "text": "In the Hungarian dubbed version of Woody Allen's film Annie Hall, a famous quotation told by Alvy Singer (Allen) at the beginning of the film is not attributed to Groucho Marx as in the original, but to Buster Keaton. The reason was that in communist Hungary, the name 'Marx' was associated with Karl Marx, and the name was not allowed to be used in such a light, humorous context.", "title": "Legacy" }, { "paragraph_id": 66, "text": "Woody Allen's 1996 musical Everyone Says I Love You, in addition to being named for one of Marx's signature songs, ends with a Groucho-themed New Year's Eve party in Paris, which some of the stars, including Allen and Goldie Hawn, attend in full Groucho costume. The highlight of the scene is an ensemble song-and-dance performance of \"Hooray for Captain Spaulding\"—done entirely in French.", "title": "Legacy" }, { "paragraph_id": 67, "text": "GrouchoMostra \"Dylan Dog e motori, gioie e orrori\" - panoramio (26).jpg In 2008, Minnie's Boys was remounted Off-Broadway with Erik Liberman as Groucho and Pamela Myers as Minnie Marx. Liberman later played Marx in a musical based on Flywheel, Shyster, and Flywheel called The Most Ridiculous Thing You Ever Hoid (2010) and at the Obama White House.", "title": "Legacy" }, { "paragraph_id": 68, "text": "Groucho, a supporting character in the Italian horror comics series Dylan Dog, is a Groucho Marx impersonator whose character became his permanent personality, and he works with Dylan Dog as his professional sidekick. In the English-language version by Dark Horse Comics, to avoid legal complications regarding Groucho Marx's estate, the art was altered so that Groucho no longer sports the Marx brother's signature moustache, and was renamed Felix.", "title": "Legacy" }, { "paragraph_id": 69, "text": "Throughout the M*A*S*H television series, several Groucho homage traits are mirrored in Alan Alda's portrayal of Hawkeye, including the 1972 season one episode \"Yankee Doodle Doctor\" that had a full Groucho impression complete with nose, moustache and glasses.", "title": "Legacy" } ]
Julius Henry "Groucho" Marx was an American comedian, actor, writer, and singer who performed in film, television, radio, stage, and vaudeville. He was a master of quick wit and is generally considered to have been one of America's greatest comedians. He made 13 feature films as a team with his brothers, who performed under the name the Marx Brothers, of whom he was the third-born. He also had a successful solo career primarily on radio and television, most notably as the host of the game show You Bet Your Life. His distinctive appearance, carried over from his days in vaudeville, included quirks such as an exaggerated stooped posture, spectacles, cigar, and a thick greasepaint mustache and eyebrows. These exaggerated features resulted in the creation of one of the most recognizable and ubiquitous novelty disguises, known as Groucho glasses: a one-piece mask consisting of horn-rimmed glasses, a large plastic nose, bushy eyebrows and mustache.
2001-11-13T15:57:53Z
2023-12-31T22:14:50Z
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https://en.wikipedia.org/wiki/Groucho_Marx
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Game Boy Advance
The Game Boy Advance (GBA) is a 32-bit handheld game console developed, manufactured and marketed by Nintendo as the successor to the Game Boy Color. It was released in Japan on March 21, 2001, in North America on June 11, 2001, in the PAL region on June 22, 2001, and in mainland China as iQue Game Boy Advance on June 8, 2004. The GBA is part of the sixth generation of video game consoles. The original model was followed in 2003 by the Game Boy Advance SP, a redesigned model with a frontlit screen and clamshell form factor. A newer revision of the SP with a backlit screen was released in 2005. A miniaturized redesign, the Game Boy Micro, was released in September 2005. As of June 2010, 81.51 million units of the Game Boy Advance series have been sold worldwide. Its successor, the Nintendo DS, was released in November 2004 and is backward compatible with Game Boy Advance software. Unlike the Game Boy and Game Boy Color, which have the "portrait" form factor (designed by Gunpei Yokoi), the Game Boy Advance has a "landscape" form factor, putting the buttons to the sides of the device instead of below the screen. It was designed by the French designer Gwénaël Nicolas and his Tokyo-based design studio Curiosity Inc. News of a successor to the Game Boy Color (GBC) first emerged at the Space World trade show in late August 1999, where it was reported that two new handheld systems were in development: an improved version of the GBC with wireless online connectivity, codenamed the Advanced Game Boy (AGB), and a new 32-bit system set for release the following year. On September 1, 1999, Nintendo officially announced the Game Boy Advance, revealing details about the system's specifications including online connectivity through a cellular device and an improved model of the Game Boy Camera. Nintendo teased that the handheld would first be released in Japan in August 2000, with the North American and European launch dates slated for the end of the same year. Simultaneously, Nintendo announced a partnership with Konami to form Mobile 21, a development studio that would focus on creating technology for the GBA to interact with the GameCube, Nintendo's home console which was also in development at the time with the codename Dolphin. On August 21, 2000, IGN showed images of a GBA development kit running a demonstrational port of Yoshi's Story, and on August 22, pre-production images of the GBA were revealed in Famitsu magazine in Japan. On August 24, Nintendo officially revealed the console to the public, with the Japanese and North American launch dates and 10 launch games. The GBA was then featured at Space World 2000 from August 24 to 26 alongside several peripherals for the system, including the GBA Link cable, the GameCube - Game Boy Advance link cable, a rechargeable battery pack for the system, and an infrared communications adaptor which would allow systems to exchange data. In March 2001, Nintendo revealed details about the system's North American launch, including the suggested price of $99.99 and the 15 launch games. Nintendo estimated that around 60 new games would be released by the end of 2001. In 1996, magazines including Electronic Gaming Monthly and Next Generation featured reports of a successor to the original Game Boy, codenamed Project Atlantis. Nintendo's initial target was to release the system in at least one territory by the end of 1996, which would make it appear to most likely refer to the Game Boy Color. However, it was described as having a 32-bit ARM processor, a 3-by-2-inch (7.6 cm x 5 cm) color screen, and a link port — a description that more closely matches the Game Boy Advance. Electronic Gaming Monthly reported the processor to be an ARM710, clocked at 25 MHz, while Next Generation claimed it to be a StrongARM SA-110, possibly supporting 160 MHz. Both were designed by Advanced RISC Machines (ARM), which also created the CPU for the Game Boy Advance (and all Nintendo handhelds up to the Switch). In terms of software, it was announced that Nintendo of Japan was working on a game for the system called Mario's Castle, ultimately unreleased. Nintendo suspended the Atlantis project sometime in 1997, since the original Game Boy's 80% of the handheld market share was considered too high to merit the release of a successor. During a panel discussion at 2009's Game Developers Conference, a canceled "Game Boy Advance predecessor" was shown on-screen, which looked like a bulky Game Boy Color. Joystiq concluded this unnamed device was most likely Project Atlantis. The technical specifications of the original Game Boy Advance are, as provided by Nintendo: Backward compatibility for Game Boy and Game Boy Color games is provided by a custom 4.194/8.388 MHz hybrid Z80 and 8080-based coprocessor (Game Boy Advance software can use the audio tone generators to supplement the primary sound system), while a link port at the top of the unit allows it to be connected to other devices using a Game Link cable or GameCube link cable. When playing Game Boy or Game Boy Color games on the Game Boy Advance, the L and R buttons can be used to toggle between a stretched widescreen format (240×144) and the original screen ratio of the Game Boy (160×144). Game Boy games can be played using the same selectable color palettes as on the Game Boy Color. Every Nintendo handheld system following the release of the Game Boy Advance SP has included a built-in light and rechargeable battery. The Game Boy Advance 2D graphics hardware has scaling and rotation for traditional tiled backgrounds in its modes 1 and 2, and scaling and rotation for bitmaps in modes 3 through 5 (used less often on the GBA because of technical limitations). On each machine supporting this effect, it is possible to change the scaling and rotation values during the horizontal blanking period of each scanline to draw a flat plane in a perspective projection. More complex effects such as fuzz are possible by using other equations for the position, scaling, and rotation of each line. The "character mode" supports up to 4 tile map background layers per frame, with each tile being 8x8 pixels in size and having 16 or 256 colors. The "character mode" also supports up to 128 hardware sprites per frame, with any sprite size from 8x8 to 64x64 pixels and with 16 or 256 colors per sprite. The Game Boy Advance was available in numerous colors and limited editions throughout its production. It was initially available in Arctic, Black, Orange (Japan Only), Fuchsia (translucent pink), Glacier (translucent blue), and Indigo. Later in the system's lifespan, additional colors and special editions were released, including: Red, Clear Orange/Black, Platinum, White, Gold (Japan Only), Hello Kitty edition (pink with Hello Kitty and logo on bezel), The King of Fighters edition (black with images on bezel and buttons), Chobits edition (translucent light blue, with images on bezel and buttons), Battle Network Rockman EXE 2 (light blue with images on bezel), Mario Bros. edition (Glacier with Mario and Luigi on bezel), and Yomiuri Giants edition (Glacier with images on bezel). Several Pokémon-themed limited-edition systems were made available in Pokémon Center stores in Japan. These editions include: Gold Pokémon edition (Gold with Pikachu and Pichu on bezel), Suicune edition (blue/grey with greyscale Pikachu and Pichu on bezel, and a Pokémon Center sticker on the back), Celebi edition (olive green with Celebi images on bezel), and Latias/Latios edition (pink/red and purple, with images of Latias and Latios on bezel). With hardware performance comparable to the Super Nintendo Entertainment System, the Game Boy Advance represents progress for sprite-based technology. The system's library includes platformers, SNES-like role-playing video games, and games ported from various 8-bit and 16-bit systems of the previous generations. This includes the Super Mario Advance series, and the system's backward compatibility with all earlier Game Boy titles. Though most GBA games primarily employ 2D graphics, developers have ambitiously designed some 3D GBA games that push the limits of the hardware, including first-person shooters like a port of Doom, racing games like V-Rally 3, and even platformers, like Asterix & Obelix XXL. Some cartridges are colored to resemble the game (usually for the Pokémon series; Pokémon Emerald, for example, being a clear emerald green). Others have special built-in features, including rumble features (Drill Dozer), tilt sensors (WarioWare: Twisted!, Yoshi's Universal Gravitation) and solar sensors (Boktai). In Japan, the final game to be released on the system was Final Fantasy VI Advance on November 30, 2006, which was also the final game published by Nintendo on the system. In North America, the last game for the system was Samurai Deeper Kyo, released on February 12, 2008. In Europe, the last game for the system is The Legend of Spyro: The Eternal Night, released on November 2, 2007. The Japan-only Rhythm Tengoku, the first game in what would eventually become known outside Japan as the Rhythm Heaven/Rhythm Paradise series, is the final first-party-developed game for the system, released on August 3, 2006. An accessory for the GameCube, known as the Game Boy Player, was released in 2003 as the successor to the Super Game Boy peripheral for the Super Nintendo Entertainment System. The accessory allows Game Boy Advance, Game Boy, and Game Boy Color games to be played on the GameCube. However, some games may have compatibility issues due to certain features requiring extra hardware. For example, playing games with built-in motion sensors, such as Yoshi's Topsy-Turvy, would require players to manipulate the console. The GBA is the last Nintendo handheld system to bear the Game Boy name. Games developed for it are incompatible with older Game Boy systems, and each game's box carries a label indicating that the game is "not compatible with other Game Boy systems". However, games designed for older Game Boy systems are backward compatible with the Game Boy Advance, with options to play such games on either their standard aspect ratios or a stretched fullscreen. Game Boy Advance games are compatible with Nintendo DS models that support them with a dedicated GBA cartridge slot beneath the touch screen (specifically the original model and the Nintendo DS Lite), although they do not support multiplayer or features involving the use of GBA accessories due to the absence of the GBA's external peripheral port on the DS. The Nintendo DSi and Nintendo DSi XL lack a GBA cartridge slot, and do not support backward compatibility with the GBA. Various Game Boy Advance games have been re-released on newer Nintendo systems through its digital distribution services. As part of an Ambassador Program for early adopters of the Nintendo 3DS system, ten Game Boy Advance games, along with ten Nintendo Entertainment System games, were made available free for players who bought a 3DS system before the price drop on August 12, 2011. Unlike other Virtual Console games for the system, features such as the Home menu or save states are missing, since the games are running natively instead of via emulation. In January 2014, Nintendo President Satoru Iwata stated Game Boy Advance games would be released on the Wii U's Virtual Console sometime during April 2014. The first set of GBA games, including Advance Wars, Metroid Fusion, and Mario & Luigi: Superstar Saga, were released April 3, 2014. All Virtual Console releases are single-player only, as they do not emulate multiplayer features enabled by Game Link cables. In February 2023, Nintendo added Game Boy Advance games to its Nintendo Switch Online service, exclusively to those with the Expansion Pack tier. Nintendo released various addons for the Game Boy Advance, which include: Other accessories for the Game Boy Advance include: In early 2003, Nintendo introduced a new form-factor for the handheld, known as the Game Boy Advance SP (model AGS-001). The redesigned unit features a clamshell design that resembles a pocket-size laptop computer, including a folding case approximately one-half the size of the original unit. It has a rechargeable lithium-ion battery, a significantly brighter LCD screen, and an internal front-light that can be toggled on and off. The redesign was intended to address some common complaints about the original Game Boy Advance, which had been criticized for being somewhat uncomfortable to use, especially due to a dark screen. On September 19, 2005, Nintendo released a new version of the SP, model AGS-101, that features a brighter backlit display. The switch that controls the backlight now toggles between two brightness levels. In September 2005, Nintendo released a second redesign of the Game Boy Advance. This model, dubbed the Game Boy Micro, is similar in style to the original Game Boy Advance's horizontal orientation, but is much smaller and sleeker. The Game Boy Micro allows the user to switch between several colored faceplates to allow customization, a feature which Nintendo advertised heavily around the Game Boy Micro's launch. Nintendo also hoped that this "fashion" feature would help target audiences outside of typical video game players. Unlike the previous Game Boy Advance models, the Game Boy Micro is unable to support Game Boy and Game Boy Color titles. The Game Boy Micro did not make much of an impact in the video game market, as it was overshadowed by the Nintendo DS, which also played Game Boy Advance games through the GBA cartridge slot. Upon its North American release, IGN praised the Game Boy Advance's graphical capabilities and battery life, but criticized the system's shoulder button placement and noted the system's high price tag which "may be a tad bit too high to swallow", ultimately scoring the system with an "8.0" out of 10. They also pointed out the system's lack of a backlight which occasionally got in the way of playing games. ABC News praised the Game Boy Advance's graphics, grip, and larger screen, stating that "You've never had as much fun playing old games." Reviewing for CNET, Darren Gladstone scored the system with a 7.0 out of 10, praising its graphical performance and backwards compatibility, but being considerably critical of the system's lack of a backlit screen, noting that it makes it "nearly impossible" to play in normal lighting conditions. Gladstone ultimately recommended the sleeker and backlit Game Boy Advance SP instead, despite noting that the cheaper price of the original model may "appeal to gamers on a lower budget." ROM hacks, fan games, and Homebrew games are developed for the GBA. Nintendo hoped to sell 1.1 million Game Boy Advance units by the end of March with the system's Japanese debut, and anticipated sales of 24 million units before the end of 2001; many marketing analysts believed this to be a realistic goal due to the company's lack of major competition in the handheld video game market. Within the first week of its North American launch in June, the Game Boy Advance sold 500,000 units, making it the fastest-selling video game console in the United States at the time. In response to strong sales, Nintendo ordered 100,000 units to ship to retail stores, hoping to ship another half million of them by the end of June. The Game Boy Advance also became the fastest-selling system in the United Kingdom, selling 81,000 units in its first week of release and beating the PlayStation 2's previous record of 20,000 units. In 2004, the system's sales in the United Kingdom surpassed one million units. On December 1, 2006, Nintendo of America released launch-to-date information indicating that the company had sold 33.6 million units of the Game Boy Advance series in the United States. In a Kotaku article published on January 18, 2008, Nintendo revealed that the Game Boy Advance series had sold 36.2 million units in the United States, as of January 1, 2008. As of December 31, 2009, 81.51 million units of the Game Boy Advance series have been sold worldwide, 43.57 million of which are Game Boy Advance SP units and 2.42 million of which are Game Boy Micro units.
[ { "paragraph_id": 0, "text": "The Game Boy Advance (GBA) is a 32-bit handheld game console developed, manufactured and marketed by Nintendo as the successor to the Game Boy Color. It was released in Japan on March 21, 2001, in North America on June 11, 2001, in the PAL region on June 22, 2001, and in mainland China as iQue Game Boy Advance on June 8, 2004. The GBA is part of the sixth generation of video game consoles. The original model was followed in 2003 by the Game Boy Advance SP, a redesigned model with a frontlit screen and clamshell form factor. A newer revision of the SP with a backlit screen was released in 2005. A miniaturized redesign, the Game Boy Micro, was released in September 2005.", "title": "" }, { "paragraph_id": 1, "text": "As of June 2010, 81.51 million units of the Game Boy Advance series have been sold worldwide. Its successor, the Nintendo DS, was released in November 2004 and is backward compatible with Game Boy Advance software.", "title": "" }, { "paragraph_id": 2, "text": "Unlike the Game Boy and Game Boy Color, which have the \"portrait\" form factor (designed by Gunpei Yokoi), the Game Boy Advance has a \"landscape\" form factor, putting the buttons to the sides of the device instead of below the screen. It was designed by the French designer Gwénaël Nicolas and his Tokyo-based design studio Curiosity Inc.", "title": "History" }, { "paragraph_id": 3, "text": "News of a successor to the Game Boy Color (GBC) first emerged at the Space World trade show in late August 1999, where it was reported that two new handheld systems were in development: an improved version of the GBC with wireless online connectivity, codenamed the Advanced Game Boy (AGB), and a new 32-bit system set for release the following year. On September 1, 1999, Nintendo officially announced the Game Boy Advance, revealing details about the system's specifications including online connectivity through a cellular device and an improved model of the Game Boy Camera. Nintendo teased that the handheld would first be released in Japan in August 2000, with the North American and European launch dates slated for the end of the same year. Simultaneously, Nintendo announced a partnership with Konami to form Mobile 21, a development studio that would focus on creating technology for the GBA to interact with the GameCube, Nintendo's home console which was also in development at the time with the codename Dolphin. On August 21, 2000, IGN showed images of a GBA development kit running a demonstrational port of Yoshi's Story, and on August 22, pre-production images of the GBA were revealed in Famitsu magazine in Japan. On August 24, Nintendo officially revealed the console to the public, with the Japanese and North American launch dates and 10 launch games. The GBA was then featured at Space World 2000 from August 24 to 26 alongside several peripherals for the system, including the GBA Link cable, the GameCube - Game Boy Advance link cable, a rechargeable battery pack for the system, and an infrared communications adaptor which would allow systems to exchange data. In March 2001, Nintendo revealed details about the system's North American launch, including the suggested price of $99.99 and the 15 launch games. Nintendo estimated that around 60 new games would be released by the end of 2001.", "title": "History" }, { "paragraph_id": 4, "text": "In 1996, magazines including Electronic Gaming Monthly and Next Generation featured reports of a successor to the original Game Boy, codenamed Project Atlantis. Nintendo's initial target was to release the system in at least one territory by the end of 1996, which would make it appear to most likely refer to the Game Boy Color. However, it was described as having a 32-bit ARM processor, a 3-by-2-inch (7.6 cm x 5 cm) color screen, and a link port — a description that more closely matches the Game Boy Advance. Electronic Gaming Monthly reported the processor to be an ARM710, clocked at 25 MHz, while Next Generation claimed it to be a StrongARM SA-110, possibly supporting 160 MHz. Both were designed by Advanced RISC Machines (ARM), which also created the CPU for the Game Boy Advance (and all Nintendo handhelds up to the Switch). In terms of software, it was announced that Nintendo of Japan was working on a game for the system called Mario's Castle, ultimately unreleased. Nintendo suspended the Atlantis project sometime in 1997, since the original Game Boy's 80% of the handheld market share was considered too high to merit the release of a successor.", "title": "History" }, { "paragraph_id": 5, "text": "During a panel discussion at 2009's Game Developers Conference, a canceled \"Game Boy Advance predecessor\" was shown on-screen, which looked like a bulky Game Boy Color. Joystiq concluded this unnamed device was most likely Project Atlantis.", "title": "History" }, { "paragraph_id": 6, "text": "The technical specifications of the original Game Boy Advance are, as provided by Nintendo:", "title": "Hardware" }, { "paragraph_id": 7, "text": "Backward compatibility for Game Boy and Game Boy Color games is provided by a custom 4.194/8.388 MHz hybrid Z80 and 8080-based coprocessor (Game Boy Advance software can use the audio tone generators to supplement the primary sound system), while a link port at the top of the unit allows it to be connected to other devices using a Game Link cable or GameCube link cable. When playing Game Boy or Game Boy Color games on the Game Boy Advance, the L and R buttons can be used to toggle between a stretched widescreen format (240×144) and the original screen ratio of the Game Boy (160×144). Game Boy games can be played using the same selectable color palettes as on the Game Boy Color. Every Nintendo handheld system following the release of the Game Boy Advance SP has included a built-in light and rechargeable battery.", "title": "Hardware" }, { "paragraph_id": 8, "text": "The Game Boy Advance 2D graphics hardware has scaling and rotation for traditional tiled backgrounds in its modes 1 and 2, and scaling and rotation for bitmaps in modes 3 through 5 (used less often on the GBA because of technical limitations). On each machine supporting this effect, it is possible to change the scaling and rotation values during the horizontal blanking period of each scanline to draw a flat plane in a perspective projection. More complex effects such as fuzz are possible by using other equations for the position, scaling, and rotation of each line. The \"character mode\" supports up to 4 tile map background layers per frame, with each tile being 8x8 pixels in size and having 16 or 256 colors. The \"character mode\" also supports up to 128 hardware sprites per frame, with any sprite size from 8x8 to 64x64 pixels and with 16 or 256 colors per sprite.", "title": "Hardware" }, { "paragraph_id": 9, "text": "The Game Boy Advance was available in numerous colors and limited editions throughout its production. It was initially available in Arctic, Black, Orange (Japan Only), Fuchsia (translucent pink), Glacier (translucent blue), and Indigo. Later in the system's lifespan, additional colors and special editions were released, including: Red, Clear Orange/Black, Platinum, White, Gold (Japan Only), Hello Kitty edition (pink with Hello Kitty and logo on bezel), The King of Fighters edition (black with images on bezel and buttons), Chobits edition (translucent light blue, with images on bezel and buttons), Battle Network Rockman EXE 2 (light blue with images on bezel), Mario Bros. edition (Glacier with Mario and Luigi on bezel), and Yomiuri Giants edition (Glacier with images on bezel).", "title": "Hardware" }, { "paragraph_id": 10, "text": "Several Pokémon-themed limited-edition systems were made available in Pokémon Center stores in Japan. These editions include: Gold Pokémon edition (Gold with Pikachu and Pichu on bezel), Suicune edition (blue/grey with greyscale Pikachu and Pichu on bezel, and a Pokémon Center sticker on the back), Celebi edition (olive green with Celebi images on bezel), and Latias/Latios edition (pink/red and purple, with images of Latias and Latios on bezel).", "title": "Hardware" }, { "paragraph_id": 11, "text": "With hardware performance comparable to the Super Nintendo Entertainment System, the Game Boy Advance represents progress for sprite-based technology. The system's library includes platformers, SNES-like role-playing video games, and games ported from various 8-bit and 16-bit systems of the previous generations. This includes the Super Mario Advance series, and the system's backward compatibility with all earlier Game Boy titles. Though most GBA games primarily employ 2D graphics, developers have ambitiously designed some 3D GBA games that push the limits of the hardware, including first-person shooters like a port of Doom, racing games like V-Rally 3, and even platformers, like Asterix & Obelix XXL.", "title": "Games" }, { "paragraph_id": 12, "text": "Some cartridges are colored to resemble the game (usually for the Pokémon series; Pokémon Emerald, for example, being a clear emerald green). Others have special built-in features, including rumble features (Drill Dozer), tilt sensors (WarioWare: Twisted!, Yoshi's Universal Gravitation) and solar sensors (Boktai).", "title": "Games" }, { "paragraph_id": 13, "text": "In Japan, the final game to be released on the system was Final Fantasy VI Advance on November 30, 2006, which was also the final game published by Nintendo on the system. In North America, the last game for the system was Samurai Deeper Kyo, released on February 12, 2008. In Europe, the last game for the system is The Legend of Spyro: The Eternal Night, released on November 2, 2007. The Japan-only Rhythm Tengoku, the first game in what would eventually become known outside Japan as the Rhythm Heaven/Rhythm Paradise series, is the final first-party-developed game for the system, released on August 3, 2006.", "title": "Games" }, { "paragraph_id": 14, "text": "An accessory for the GameCube, known as the Game Boy Player, was released in 2003 as the successor to the Super Game Boy peripheral for the Super Nintendo Entertainment System. The accessory allows Game Boy Advance, Game Boy, and Game Boy Color games to be played on the GameCube. However, some games may have compatibility issues due to certain features requiring extra hardware. For example, playing games with built-in motion sensors, such as Yoshi's Topsy-Turvy, would require players to manipulate the console.", "title": "Games" }, { "paragraph_id": 15, "text": "The GBA is the last Nintendo handheld system to bear the Game Boy name. Games developed for it are incompatible with older Game Boy systems, and each game's box carries a label indicating that the game is \"not compatible with other Game Boy systems\". However, games designed for older Game Boy systems are backward compatible with the Game Boy Advance, with options to play such games on either their standard aspect ratios or a stretched fullscreen.", "title": "Games" }, { "paragraph_id": 16, "text": "Game Boy Advance games are compatible with Nintendo DS models that support them with a dedicated GBA cartridge slot beneath the touch screen (specifically the original model and the Nintendo DS Lite), although they do not support multiplayer or features involving the use of GBA accessories due to the absence of the GBA's external peripheral port on the DS. The Nintendo DSi and Nintendo DSi XL lack a GBA cartridge slot, and do not support backward compatibility with the GBA.", "title": "Games" }, { "paragraph_id": 17, "text": "Various Game Boy Advance games have been re-released on newer Nintendo systems through its digital distribution services. As part of an Ambassador Program for early adopters of the Nintendo 3DS system, ten Game Boy Advance games, along with ten Nintendo Entertainment System games, were made available free for players who bought a 3DS system before the price drop on August 12, 2011. Unlike other Virtual Console games for the system, features such as the Home menu or save states are missing, since the games are running natively instead of via emulation.", "title": "Games" }, { "paragraph_id": 18, "text": "In January 2014, Nintendo President Satoru Iwata stated Game Boy Advance games would be released on the Wii U's Virtual Console sometime during April 2014. The first set of GBA games, including Advance Wars, Metroid Fusion, and Mario & Luigi: Superstar Saga, were released April 3, 2014. All Virtual Console releases are single-player only, as they do not emulate multiplayer features enabled by Game Link cables.", "title": "Games" }, { "paragraph_id": 19, "text": "In February 2023, Nintendo added Game Boy Advance games to its Nintendo Switch Online service, exclusively to those with the Expansion Pack tier.", "title": "Games" }, { "paragraph_id": 20, "text": "Nintendo released various addons for the Game Boy Advance, which include:", "title": "Accessories" }, { "paragraph_id": 21, "text": "Other accessories for the Game Boy Advance include:", "title": "Accessories" }, { "paragraph_id": 22, "text": "In early 2003, Nintendo introduced a new form-factor for the handheld, known as the Game Boy Advance SP (model AGS-001). The redesigned unit features a clamshell design that resembles a pocket-size laptop computer, including a folding case approximately one-half the size of the original unit. It has a rechargeable lithium-ion battery, a significantly brighter LCD screen, and an internal front-light that can be toggled on and off. The redesign was intended to address some common complaints about the original Game Boy Advance, which had been criticized for being somewhat uncomfortable to use, especially due to a dark screen.", "title": "Revisions" }, { "paragraph_id": 23, "text": "On September 19, 2005, Nintendo released a new version of the SP, model AGS-101, that features a brighter backlit display. The switch that controls the backlight now toggles between two brightness levels.", "title": "Revisions" }, { "paragraph_id": 24, "text": "In September 2005, Nintendo released a second redesign of the Game Boy Advance. This model, dubbed the Game Boy Micro, is similar in style to the original Game Boy Advance's horizontal orientation, but is much smaller and sleeker. The Game Boy Micro allows the user to switch between several colored faceplates to allow customization, a feature which Nintendo advertised heavily around the Game Boy Micro's launch. Nintendo also hoped that this \"fashion\" feature would help target audiences outside of typical video game players. Unlike the previous Game Boy Advance models, the Game Boy Micro is unable to support Game Boy and Game Boy Color titles. The Game Boy Micro did not make much of an impact in the video game market, as it was overshadowed by the Nintendo DS, which also played Game Boy Advance games through the GBA cartridge slot.", "title": "Revisions" }, { "paragraph_id": 25, "text": "Upon its North American release, IGN praised the Game Boy Advance's graphical capabilities and battery life, but criticized the system's shoulder button placement and noted the system's high price tag which \"may be a tad bit too high to swallow\", ultimately scoring the system with an \"8.0\" out of 10. They also pointed out the system's lack of a backlight which occasionally got in the way of playing games. ABC News praised the Game Boy Advance's graphics, grip, and larger screen, stating that \"You've never had as much fun playing old games.\"", "title": "Reception" }, { "paragraph_id": 26, "text": "Reviewing for CNET, Darren Gladstone scored the system with a 7.0 out of 10, praising its graphical performance and backwards compatibility, but being considerably critical of the system's lack of a backlit screen, noting that it makes it \"nearly impossible\" to play in normal lighting conditions. Gladstone ultimately recommended the sleeker and backlit Game Boy Advance SP instead, despite noting that the cheaper price of the original model may \"appeal to gamers on a lower budget.\"", "title": "Reception" }, { "paragraph_id": 27, "text": "ROM hacks, fan games, and Homebrew games are developed for the GBA.", "title": "Reception" }, { "paragraph_id": 28, "text": "Nintendo hoped to sell 1.1 million Game Boy Advance units by the end of March with the system's Japanese debut, and anticipated sales of 24 million units before the end of 2001; many marketing analysts believed this to be a realistic goal due to the company's lack of major competition in the handheld video game market. Within the first week of its North American launch in June, the Game Boy Advance sold 500,000 units, making it the fastest-selling video game console in the United States at the time. In response to strong sales, Nintendo ordered 100,000 units to ship to retail stores, hoping to ship another half million of them by the end of June. The Game Boy Advance also became the fastest-selling system in the United Kingdom, selling 81,000 units in its first week of release and beating the PlayStation 2's previous record of 20,000 units. In 2004, the system's sales in the United Kingdom surpassed one million units.", "title": "Reception" }, { "paragraph_id": 29, "text": "On December 1, 2006, Nintendo of America released launch-to-date information indicating that the company had sold 33.6 million units of the Game Boy Advance series in the United States. In a Kotaku article published on January 18, 2008, Nintendo revealed that the Game Boy Advance series had sold 36.2 million units in the United States, as of January 1, 2008. As of December 31, 2009, 81.51 million units of the Game Boy Advance series have been sold worldwide, 43.57 million of which are Game Boy Advance SP units and 2.42 million of which are Game Boy Micro units.", "title": "Reception" } ]
The Game Boy Advance (GBA) is a 32-bit handheld game console developed, manufactured and marketed by Nintendo as the successor to the Game Boy Color. It was released in Japan on March 21, 2001, in North America on June 11, 2001, in the PAL region on June 22, 2001, and in mainland China as iQue Game Boy Advance on June 8, 2004. The GBA is part of the sixth generation of video game consoles. The original model was followed in 2003 by the Game Boy Advance SP, a redesigned model with a frontlit screen and clamshell form factor. A newer revision of the SP with a backlit screen was released in 2005. A miniaturized redesign, the Game Boy Micro, was released in September 2005. As of June 2010, 81.51 million units of the Game Boy Advance series have been sold worldwide. Its successor, the Nintendo DS, was released in November 2004 and is backward compatible with Game Boy Advance software.
2001-10-03T18:42:44Z
2023-12-31T20:00:16Z
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https://en.wikipedia.org/wiki/Game_Boy_Advance
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Google Search
Google Search (also known simply as Google or Google.com) is a search engine owned and operated by Google. Handling more than 3.5 billion searches per day, it has a 92% share of the global search engine market. It is the most-visited website in the world. Approximately 26.75% of Google's monthly global traffic comes from the United States, 4.44% from India, 4.4% from Brazil, 3.92% from the United Kingdom, 3.84% from Japan and the remaining 56.65% from other countries according to data provided by Similarweb. The order of search results returned by Google is based, in part, on a priority rank system called "PageRank". Google Search also provides many different options for customized searches, using symbols to include, exclude, specify or require certain search behavior, and offers specialized interactive experiences, such as flight status and package tracking, weather forecasts, currency, unit, and time conversions, word definitions, and more. The main purpose of Google Search is to search for text in publicly accessible documents offered by web servers, as opposed to other data, such as images or data contained in databases. It was originally developed in 1996 by Larry Page, Sergey Brin, and Scott Hassan. In 2011, Google introduced "Google Voice Search" to search for spoken, rather than typed, words. In 2012, Google introduced a semantic search feature named Knowledge Graph. Analysis of the frequency of search terms may indicate economic, social and health trends. Data about the frequency of use of search terms on Google can be openly inquired via Google Trends and have been shown to correlate with flu outbreaks and unemployment levels, and provide the information faster than traditional reporting methods and surveys. As of mid-2016, Google's search engine has begun to rely on deep neural networks. Google indexes hundreds of terabytes of information from web pages. For websites that are currently down or otherwise not available, Google provides links to cached versions of the site, formed by the search engine's latest indexing of that page. Additionally, Google indexes some file types, being able to show users PDFs, Word documents, Excel spreadsheets, PowerPoint presentations, certain Flash multimedia content, and plain text files. Users can also activate "SafeSearch", a filtering technology aimed at preventing explicit and pornographic content from appearing in search results. Despite Google search's immense index, sources generally assume that Google is only indexing less than 5% of the total Internet, with the rest belonging to the deep web, inaccessible through its search tools. In 2012, Google changed its search indexing tools to demote sites that had been accused of piracy. In October 2016, Gary Illyes, a webmaster trends analyst with Google, announced that the search engine would be making a separate, primary web index dedicated for mobile devices, with a secondary, less up-to-date index for desktop use. The change was a response to the continued growth in mobile usage, and a push for web developers to adopt a mobile-friendly version of their websites. In December 2017, Google began rolling out the change, having already done so for multiple websites. In August 2009, Google invited web developers to test a new search architecture, codenamed "Caffeine", and give their feedback. The new architecture provided no visual differences in the user interface, but added significant speed improvements and a new "under-the-hood" indexing infrastructure. The move was interpreted in some quarters as a response to Microsoft's recent release of an upgraded version of its own search service, renamed Bing, as well as the launch of Wolfram Alpha, a new search engine based on "computational knowledge". Google announced completion of "Caffeine" on June 8, 2010, claiming 50% fresher results due to continuous updating of its index. With "Caffeine", Google moved its back-end indexing system away from MapReduce and onto Bigtable, the company's distributed database platform. In August 2018, Danny Sullivan from Google announced a broad core algorithm update. As per current analysis done by the industry leaders Search Engine Watch and Search Engine Land, the update was to drop down the medical and health-related websites that were not user friendly and were not providing good user experience. This is why the industry experts named it "Medic". Google reserves very high standards for YMYL (Your Money or Your Life) pages. This is because misinformation can affect users financially, physically, or emotionally. Therefore, the update targeted particularly those YMYL pages that have low-quality content and misinformation. This resulted in the algorithm targeting health and medical-related websites more than others. However, many other websites from other industries were also negatively affected. In 2013 the European Commission found that Google Search favored Google's own products, instead of the best result for consumers' needs. In February 2015 Google announced a major change to its mobile search algorithm which would favor mobile friendly over other websites. Nearly 60% of Google searches come from mobile phones. Google says it wants users to have access to premium quality websites. Those websites which lack a mobile-friendly interface would be ranked lower and it is expected that this update will cause a shake-up of ranks. Businesses who fail to update their websites accordingly could see a dip in their regular websites traffic. Google's rise was largely due to a patented algorithm called PageRank which helps rank web pages that match a given search string. When Google was a Stanford research project, it was nicknamed BackRub because the technology checks backlinks to determine a site's importance. Other keyword-based methods to rank search results, used by many search engines that were once more popular than Google, would check how often the search terms occurred in a page, or how strongly associated the search terms were within each resulting page. The PageRank algorithm instead analyzes human-generated links assuming that web pages linked from many important pages are also important. The algorithm computes a recursive score for pages, based on the weighted sum of other pages linking to them. PageRank is thought to correlate well with human concepts of importance. In addition to PageRank, Google, over the years, has added many other secret criteria for determining the ranking of resulting pages. This is reported to comprise over 250 different indicators, the specifics of which are kept secret to avoid difficulties created by scammers and help Google maintain an edge over its competitors globally. PageRank was influenced by a similar page-ranking and site-scoring algorithm earlier used for RankDex, developed by Robin Li in 1996. Larry Page's patent for PageRank filed in 1998 includes a citation to Li's earlier patent. Li later went on to create the Chinese search engine Baidu in 2000. In a potential hint of Google's future direction of their Search algorithm, Google's then chief executive Eric Schmidt, said in a 2007 interview with the Financial Times: "The goal is to enable Google users to be able to ask the question such as 'What shall I do tomorrow?' and 'What job shall I take?'". Schmidt reaffirmed this during a 2010 interview with The Wall Street Journal: "I actually think most people don't want Google to answer their questions, they want Google to tell them what they should be doing next." Because Google is the most popular search engine, many webmasters attempt to influence their website's Google rankings. An industry of consultants has arisen to help websites increase their rankings on Google and other search engines. This field, called search engine optimization, attempts to discern patterns in search engine listings, and then develop a methodology for improving rankings to draw more searchers to their clients' sites. Search engine optimization encompasses both "on page" factors (like body copy, title elements, H1 heading elements and image alt attribute values) and Off Page Optimization factors (like anchor text and PageRank). The general idea is to affect Google's relevance algorithm by incorporating the keywords being targeted in various places "on page", in particular the title element and the body copy (note: the higher up in the page, presumably the better its keyword prominence and thus the ranking). Too many occurrences of the keyword, however, cause the page to look suspect to Google's spam checking algorithms. Google has published guidelines for website owners who would like to raise their rankings when using legitimate optimization consultants. It has been hypothesized, and, allegedly, is the opinion of the owner of one business about which there have been numerous complaints, that negative publicity, for example, numerous consumer complaints, may serve as well to elevate page rank on Google Search as favorable comments. The particular problem addressed in The New York Times article, which involved DecorMyEyes, was addressed shortly thereafter by an undisclosed fix in the Google algorithm. According to Google, it was not the frequently published consumer complaints about DecorMyEyes which resulted in the high ranking but mentions on news websites of events which affected the firm such as legal actions against it. Google Search Console helps to check for websites that use duplicate or copyright content. In 2013, Google significantly upgraded its search algorithm with "Hummingbird". Its name was derived from the speed and accuracy of the hummingbird. The change was announced on September 26, 2013, having already been in use for a month. "Hummingbird" places greater emphasis on natural language queries, considering context and meaning over individual keywords. It also looks deeper at content on individual pages of a website, with improved ability to lead users directly to the most appropriate page rather than just a website's homepage. The upgrade marked the most significant change to Google search in years, with more "human" search interactions and a much heavier focus on conversation and meaning. Thus, web developers and writers were encouraged to optimize their sites with natural writing rather than forced keywords, and make effective use of technical web development for on-site navigation. In the 2020s, observers reported on a perceived declining quality of search results found in Google Search. In 2023, drawing on internal Google documents disclosed as part of the United States v. Google LLC (2020) antitrust case, technology reporters claimed that Google Search was "bloated and overmonetized" and that the "semantic matching" of search queries put advertising profits before quality. Wired withdrew Megan Gray's piece after Google complained about alleged inaccuracies, while the author reiterated that «As stated in court, "A goal of Project Mercury was to increase commercial queries"». At the top of the search page, the approximate result count and the response time two digits behind decimal is noted. Of search results, page titles and URLs, dates, and a preview text snippet for each result appears. Along with web search results, sections with images, news, and videos may appear. The length of the previewed text snipped was experimented with in 2015 and 2017. "Universal search" was launched by Google on May 16, 2007, as an idea that merged the results from different kinds of search types into one. Prior to Universal search, a standard Google search would consist of links only to websites. Universal search, however, incorporates a wide variety of sources, including websites, news, pictures, maps, blogs, videos, and more, all shown on the same search results page. Marissa Mayer, then-vice president of search products and user experience, described the goal of Universal search as "we're attempting to break down the walls that traditionally separated our various search properties and integrate the vast amounts of information available into one simple set of search results. In June 2017, Google expanded its search results to cover available job listings. The data is aggregated from various major job boards and collected by analyzing company homepages. Initially only available in English, the feature aims to simplify finding jobs suitable for each user. In May 2009, Google announced that they would be parsing website microformats to populate search result pages with "Rich snippets". Such snippets include additional details about results, such as displaying reviews for restaurants and social media accounts for individuals. In May 2016, Google expanded on the "Rich snippets" format to offer "Rich cards", which, similarly to snippets, display more information about results, but shows them at the top of the mobile website in a swipeable carousel-like format. Originally limited to movie and recipe websites in the United States only, the feature expanded to all countries globally in 2017. The Knowledge Graph is a knowledge base used by Google to enhance its search engine's results with information gathered from a variety of sources. This information is presented to users in a box to the right of search results. Knowledge Graph boxes were added to Google's search engine in May 2012, starting in the United States, with international expansion by the end of the year. The information covered by the Knowledge Graph grew significantly after launch, tripling its original size within seven months, and being able to answer "roughly one-third" of the 100 billion monthly searches Google processed in May 2016. The information is often used as a spoken answer in Google Assistant and Google Home searches. The Knowledge Graph has been criticized for providing answers without source attribution. In May 2017, Google enabled a new "Personal" tab in Google Search, letting users search for content in their Google accounts' various services, including email messages from Gmail and photos from Google Photos. Google Discover, previously known as Google Feed, is a personalized stream of articles, videos, and other news-related content. The feed contains a "mix of cards" which show topics of interest based on users' interactions with Google, or topics they choose to follow directly. Cards include, "links to news stories, YouTube videos, sports scores, recipes, and other content based on what [Google] determined you're most likely to be interested in at that particular moment." Users can also tell Google they're not interested in certain topics to avoid seeing future updates. Google Discover launched in December 2016 and received a major update in July 2017. Another major update was released in September 2018, which renamed the app from Google Feed to Google Discover, updated the design, and adding more features. Discover can be found on a tab in the Google app and by swiping left on the home screen of certain Android devices. As of 2019, Google will not allow political campaigns worldwide to target their advertisement to people to make them vote. At the 2023 Google I/O event in May, Google unveiled Search Generative Experience (SGE), an experimental feature in Google Search available through Google Labs which produces AI-generated summaries in response to search prompts. This was part of Google's wider efforts to counter the unprecedented rise of generative AI technology, ushered by OpenAI's launch of ChatGPT, which sent Google executives to a panic due to its potential threat to Google Search. Google added the ability to generate images in October. In late June 2011, Google introduced a new look to the Google home page in order to boost the use of the Google+ social tools. One of the major changes was replacing the classic navigation bar with a black one. Google's digital creative director Chris Wiggins explains: "We're working on a project to bring you a new and improved Google experience, and over the next few months, you'll continue to see more updates to our look and feel." The new navigation bar has been negatively received by a vocal minority. In November 2013, Google started testing yellow labels for advertisements displayed in search results, to improve user experience. The new labels, highlighted in yellow color, and aligned to the left of each sponsored link help users differentiate between organic and sponsored results. On December 15, 2016, Google rolled out a new desktop search interface that mimics their modular mobile user interface. The mobile design consists of a tabular design that highlights search features in boxes. and works by imitating the desktop Knowledge Graph real estate, which appears in the right-hand rail of the search engine result page, these featured elements frequently feature Twitter carousels, People Also Search For, and Top Stories (vertical and horizontal design) modules. The Local Pack and Answer Box were two of the original features of the Google SERP that were primarily showcased in this manner, but this new layout creates a previously unseen level of design consistency for Google results. Google offers a "Google Search" mobile app for Android and iOS devices. The mobile apps exclusively feature Google Discover and a "Collections" feature, in which the user can save for later perusal any type of search result like images, bookmarks or map locations into groups. Android devices were introduced to a preview of the feed, perceived as related to Google Now, in December 2016, while it was made official on both Android and iOS in July 2017. In April 2016, Google updated its Search app on Android to feature "Trends"; search queries gaining popularity appeared in the autocomplete box along with normal query autocompletion. The update received significant backlash, due to encouraging search queries unrelated to users' interests or intentions, prompting the company to issue an update with an opt-out option. In September 2017, the Google Search app on iOS was updated to feature the same functionality. In December 2017, Google released "Google Go", an app designed to enable use of Google Search on physically smaller and lower-spec devices in multiple languages. A Google blog post about designing "India-first" products and features explains that it is "tailor-made for the millions of people in [India and Indonesia] coming online for the first time". Google Search consists of a series of localized websites. The largest of those, the google.com site, is the top most-visited website in the world. Some of its features include a definition link for most searches including dictionary words, the number of results you got on your search, links to other searches (e.g. for words that Google believes to be misspelled, it provides a link to the search results using its proposed spelling), the ability to filter results to a date range, and many more. Google search accepts queries as normal text, as well as individual keywords. It automatically corrects apparent misspellings by default (while offering to use the original spelling as a selectable alternative), and provides the same results regardless of capitalization. For more customized results, one can use a wide variety of operators, including, but not limited to: Google also offers a Google Advanced Search page with a web interface to access the advanced features without needing to remember the special operators. Google applies query expansion to submitted search queries, using techniques to deliver results that it considers "smarter" than the query users actually submitted. This technique involves several steps, including: In 2008, Google started to give users autocompleted search suggestions in a list below the search bar while typing, originally with the approximate result count previewed for each listed search suggestion. Google's homepage includes a button labeled "I'm Feeling Lucky". This feature originally allowed users to type in their search query, click the button and be taken directly to the first result, bypassing the search results page. Clicking it while leaving the search box empty opens Google's archive of Doodles. With the 2010 announcement of Google Instant, an automatic feature that immediately displays relevant results as users are typing in their query, the "I'm Feeling Lucky" button disappears, requiring that users opt-out of Instant results through search settings to keep using the "I'm Feeling Lucky" functionality. In 2012, "I'm Feeling Lucky" was changed to serve as an advertisement for Google services; users hover their computer mouse over the button, it spins and shows an emotion ("I'm Feeling Puzzled" or "I'm Feeling Trendy", for instance), and, when clicked, takes users to a Google service related to that emotion. Tom Chavez of "Rapt", a firm helping to determine a website's advertising worth, estimated in 2007 that Google lost $110 million in revenue per year due to use of the button, which bypasses the advertisements found on the search results page. Besides the main text-based search-engine function of Google search, it also offers multiple quick, interactive features. These include, but are not limited to: During Google's developer conference, Google I/O, in May 2013, the company announced that users on Google Chrome and ChromeOS would be able to have the browser initiate an audio-based search by saying "OK Google", with no button presses required. After having the answer presented, users can follow up with additional, contextual questions; an example include initially asking "OK Google, will it be sunny in Santa Cruz this weekend?", hearing a spoken answer, and reply with "how far is it from here?" An update to the Chrome browser with voice-search functionality rolled out a week later, though it required a button press on a microphone icon rather than "OK Google" voice activation. Google released a browser extension for the Chrome browser, named with a "beta" tag for unfinished development, shortly thereafter. In May 2014, the company officially added "OK Google" into the browser itself; they removed it in October 2015, citing low usage, though the microphone icon for activation remained available. In May 2016, 20% of search queries on mobile devices were done through voice. In addition to its tool for searching web pages, Google also provides services for searching images, Usenet newsgroups, news websites, videos (Google Videos), searching by locality, maps, and items for sale online. Google Videos allows searching the World Wide Web for video clips. The service evolved from Google Video, Google's discontinued video hosting service that also allowed to search the web for video clips. In 2012, Google has indexed over 30 trillion web pages, and received 100 billion queries per month. It also caches much of the content that it indexes. Google operates other tools and services including Google News, Google Shopping, Google Maps, Google Custom Search, Google Earth, Google Docs, Picasa (discontinued), Panoramio (discontinued), YouTube, Google Translate, Google Blog Search and Google Desktop Search (discontinued). There are also products available from Google that are not directly search-related. Gmail, for example, is a webmail application, but still includes search features; Google Browser Sync does not offer any search facilities, although it aims to organize your browsing time. In 2009, Google claimed that a search query requires altogether about 1 kJ or 0.0003 kW·h, which is enough to raise the temperature of one liter of water by 0.24 °C. According to green search engine Ecosia, the industry standard for search engines is estimated to be about 0.2 grams of CO2 emission per search. Google's 40,000 searches per second translate to 8 kg CO2 per second or over 252 million kilos of CO2 per year. On certain occasions, the logo on Google's webpage will change to a special version, known as a "Google Doodle". This is a picture, drawing, animation, or interactive game that includes the logo. It is usually done for a special event or day although not all of them are well known. Clicking on the Doodle links to a string of Google search results about the topic. The first was a reference to the Burning Man Festival in 1998, and others have been produced for the birthdays of notable people like Albert Einstein, historical events like the interlocking Lego block's 50th anniversary and holidays like Valentine's Day. Some Google Doodles have interactivity beyond a simple search, such as the famous "Google Pac-Man" version that appeared on May 21, 2010. Google has been criticized for placing long-term cookies on users' machines to store preferences, a tactic which also enables them to track a user's search terms and retain the data for more than a year. Since 2012, Google Inc. has globally introduced encrypted connections for most of its clients, to bypass governative blockings of the commercial and IT services. In 2003, The New York Times complained about Google's indexing, claiming that Google's caching of content on its site infringed its copyright for the content. In both Field v. Google and Parker v. Google, the United States District Court of Nevada ruled in favor of Google. A 2019 New York Times article on Google Search showed that images of child sexual abuse had been found on Google and that the company had been reluctant at times to remove them. Google flags search results with the message "This site may harm your computer" if the site is known to install malicious software in the background or otherwise surreptitiously. For approximately 40 minutes on January 31, 2009, all search results were mistakenly classified as malware and could therefore not be clicked; instead a warning message was displayed and the user was required to enter the requested URL manually. The bug was caused by human error. The URL of "/" (which expands to all URLs) was mistakenly added to the malware patterns file. In 2007, a group of researchers observed a tendency for users to rely exclusively on Google Search for finding information, writing that "With the Google interface the user gets the impression that the search results imply a kind of totality. ... In fact, one only sees a small part of what one could see if one also integrates other research tools." In 2011, Google Search query results have been shown by Internet activist Eli Pariser to be tailored to users, effectively isolating users in what he defined as a filter bubble. Pariser holds algorithms used in search engines such as Google Search responsible for catering "a personal ecosystem of information". Although contrasting views have mitigated the potential threat of "informational dystopia" and questioned the scientific nature of Pariser's claims, filter bubbles have been mentioned to account for the surprising results of the U.S. presidential election in 2016 alongside fake news and echo chambers, suggesting that Facebook and Google have designed personalized online realities in which "we only see and hear what we like". In 2012, the US Federal Trade Commission fined Google US$22.5 million for violating their agreement not to violate the privacy of users of Apple's Safari web browser. The FTC was also continuing to investigate if Google's favoring of their own services in their search results violated antitrust regulations. In a November 2023 disclosure, during the ongoing antitrust trial against Google, an economics professor at the University of Chicago revealed that Google pays Apple 36% of all search advertising revenue generated when users access Google through the Safari browser. This revelation reportedly caused Google's lead attorney to cringe visibly. The revenue generated from Safari users has been kept confidential, but the 36% figure suggests that it is likely in the tens of billions of dollars. Both Apple and Google have argued that disclosing the specific terms of their search default agreement would harm their competitive positions. However, the court ruled that the information was relevant to the antitrust case and ordered its disclosure. This revelation has raised concerns about the dominance of Google in the search engine market and the potential anticompetitive effects of its agreements with Apple. Google search engine robots are programmed to use algorithms that understand and predict human behavior. The book, Race After Technology: Abolitionist Tools for the New Jim Code by Ruha Benjamin talks about human bias as a behavior that the Google search engine can recognize. In 2016, some users google searched "three Black teenagers" and images of criminal mugshots of young African American teenagers came up. Then, the users searched "three White teenagers" and were presented with photos of smiling, happy teenagers. They also searched for "three Asian teenagers", and very revealing photos of Asian girls and women appeared. Benjamin concluded that these results reflect human prejudice and views on different ethnic groups. A group of analysts explained the concept of a racist computer program: "The idea here is that computers, unlike people, can't be racist but we're increasingly learning that they do in fact take after their makers ... Some experts believe that this problem might stem from the hidden biases in the massive piles of data that the algorithms process as they learn to recognize patterns ... reproducing our worst values". As people talk about "googling" rather than searching, the company has taken some steps to defend its trademark, in an effort to prevent it from becoming a generic trademark. This has led to lawsuits, threats of lawsuits, and the use of euphemisms, such as calling Google Search a famous web search engine. Until May 2013, Google Search had offered a feature to translate search queries into other languages. A Google spokesperson told Search Engine Land that "Removing features is always tough, but we do think very hard about each decision and its implications for our users. Unfortunately, this feature never saw much pick up". Instant search was announced in September 2010 as a feature that displayed suggested results while the user typed in their search query, initially only in select countries or to registered users. The primary advantage of the new system was its ability to save time, with Marissa Mayer, then-vice president of search products and user experience, proclaiming that the feature would save 2–5 seconds per search, elaborating that "That may not seem like a lot at first, but it adds up. With Google Instant, we estimate that we'll save our users 11 hours with each passing second!" Matt Van Wagner of Search Engine Land wrote that "Personally, I kind of like Google Instant and I think it represents a natural evolution in the way search works", and also praised Google's efforts in public relations, writing that "With just a press conference and a few well-placed interviews, Google has parlayed this relatively minor speed improvement into an attention-grabbing front-page news story". The upgrade also became notable for the company switching Google Search's underlying technology from HTML to AJAX. Instant Search could be disabled via Google's "preferences" menu for those who didn't want its functionality. The publication 2600: The Hacker Quarterly compiled a list of words that Google Instant did not show suggested results for, with a Google spokesperson giving the following statement to Mashable: There are several reasons you may not be seeing search queries for a particular topic. Among other things, we apply a narrow set of removal policies for pornography, violence, and hate speech. It's important to note that removing queries from Autocomplete is a hard problem, and not as simple as blacklisting particular terms and phrases. In search, we get more than one billion searches each day. Because of this, we take an algorithmic approach to removals, and just like our search algorithms, these are imperfect. We will continue to work to improve our approach to removals in Autocomplete, and are listening carefully to feedback from our users. Our algorithms look not only at specific words, but compound queries based on those words, and across all languages. So, for example, if there's a bad word in Russian, we may remove a compound word including the transliteration of the Russian word into English. We also look at the search results themselves for given queries. So, for example, if the results for a particular query seem pornographic, our algorithms may remove that query from Autocomplete, even if the query itself wouldn't otherwise violate our policies. This system is neither perfect nor instantaneous, and we will continue to work to make it better. PC Magazine discussed the inconsistency in how some forms of the same topic are allowed; for instance, "lesbian" was blocked, while "gay" was not, and "cocaine" was blocked, while "crack" and "heroin" were not. The report further stated that seemingly normal words were also blocked due to pornographic innuendos, most notably "scat", likely due to having two completely separate contextual meanings, one for music and one for a sexual practice. On July 26, 2017, Google removed Instant results, due to a growing number of searches on mobile devices, where interaction with search, as well as screen sizes, differ significantly from a computer. "Instant previews" allowed previewing screenshots of search results' web pages without having to open them. The feature was introduced in November 2010 to the desktop website and removed in April 2013 citing low usage. Various search engines provide encrypted Web search facilities. In May 2010 Google rolled out SSL-encrypted web search. The encrypted search was accessed at encrypted.google.com However, the web search is encrypted via Transport Layer Security (TLS) by default today, thus every search request should be automatically encrypted if TLS is supported by the web browser. On its support website, Google announced that the address encrypted.google.com would be turned off April 30, 2018, stating that all Google products and most new browsers use HTTPS connections as the reason for the discontinuation. Google Real-Time Search was a feature of Google Search in which search results also sometimes included real-time information from sources such as Twitter, Facebook, blogs, and news websites. The feature was introduced on December 7, 2009 and went offline on July 2, 2011, after the deal with Twitter expired. Real-Time Search included Facebook status updates beginning on February 24, 2010. A feature similar to Real-Time Search was already available on Microsoft's Bing search engine, which showed results from Twitter and Facebook. The interface for the engine showed a live, descending "river" of posts in the main region (which could be paused or resumed), while a bar chart metric of the frequency of posts containing a certain search term or hashtag was located on the right hand corner of the page above a list of most frequently reposted posts and outgoing links. Hashtag search links were also supported, as were "promoted" tweets hosted by Twitter (located persistently on top of the river) and thumbnails of retweeted image or video links. In January 2011, geolocation links of posts were made available alongside results in Real-Time Search. In addition, posts containing syndicated or attached shortened links were made searchable by the link: query option. In July 2011 Real-Time Search became inaccessible, with the Real-Time link in the Google sidebar disappearing and a custom 404 error page generated by Google returned at its former URL. Google originally suggested that the interruption was temporary and related to the launch of Google+; they subsequently announced that it was due to the expiry of a commercial arrangement with Twitter to provide access to tweets.
[ { "paragraph_id": 0, "text": "Google Search (also known simply as Google or Google.com) is a search engine owned and operated by Google. Handling more than 3.5 billion searches per day, it has a 92% share of the global search engine market. It is the most-visited website in the world. Approximately 26.75% of Google's monthly global traffic comes from the United States, 4.44% from India, 4.4% from Brazil, 3.92% from the United Kingdom, 3.84% from Japan and the remaining 56.65% from other countries according to data provided by Similarweb.", "title": "" }, { "paragraph_id": 1, "text": "The order of search results returned by Google is based, in part, on a priority rank system called \"PageRank\". Google Search also provides many different options for customized searches, using symbols to include, exclude, specify or require certain search behavior, and offers specialized interactive experiences, such as flight status and package tracking, weather forecasts, currency, unit, and time conversions, word definitions, and more.", "title": "" }, { "paragraph_id": 2, "text": "The main purpose of Google Search is to search for text in publicly accessible documents offered by web servers, as opposed to other data, such as images or data contained in databases. It was originally developed in 1996 by Larry Page, Sergey Brin, and Scott Hassan. In 2011, Google introduced \"Google Voice Search\" to search for spoken, rather than typed, words. In 2012, Google introduced a semantic search feature named Knowledge Graph.", "title": "" }, { "paragraph_id": 3, "text": "Analysis of the frequency of search terms may indicate economic, social and health trends. Data about the frequency of use of search terms on Google can be openly inquired via Google Trends and have been shown to correlate with flu outbreaks and unemployment levels, and provide the information faster than traditional reporting methods and surveys. As of mid-2016, Google's search engine has begun to rely on deep neural networks.", "title": "" }, { "paragraph_id": 4, "text": "Google indexes hundreds of terabytes of information from web pages. For websites that are currently down or otherwise not available, Google provides links to cached versions of the site, formed by the search engine's latest indexing of that page. Additionally, Google indexes some file types, being able to show users PDFs, Word documents, Excel spreadsheets, PowerPoint presentations, certain Flash multimedia content, and plain text files. Users can also activate \"SafeSearch\", a filtering technology aimed at preventing explicit and pornographic content from appearing in search results.", "title": "Search indexing" }, { "paragraph_id": 5, "text": "Despite Google search's immense index, sources generally assume that Google is only indexing less than 5% of the total Internet, with the rest belonging to the deep web, inaccessible through its search tools.", "title": "Search indexing" }, { "paragraph_id": 6, "text": "In 2012, Google changed its search indexing tools to demote sites that had been accused of piracy. In October 2016, Gary Illyes, a webmaster trends analyst with Google, announced that the search engine would be making a separate, primary web index dedicated for mobile devices, with a secondary, less up-to-date index for desktop use. The change was a response to the continued growth in mobile usage, and a push for web developers to adopt a mobile-friendly version of their websites. In December 2017, Google began rolling out the change, having already done so for multiple websites.", "title": "Search indexing" }, { "paragraph_id": 7, "text": "In August 2009, Google invited web developers to test a new search architecture, codenamed \"Caffeine\", and give their feedback. The new architecture provided no visual differences in the user interface, but added significant speed improvements and a new \"under-the-hood\" indexing infrastructure. The move was interpreted in some quarters as a response to Microsoft's recent release of an upgraded version of its own search service, renamed Bing, as well as the launch of Wolfram Alpha, a new search engine based on \"computational knowledge\". Google announced completion of \"Caffeine\" on June 8, 2010, claiming 50% fresher results due to continuous updating of its index.", "title": "Search indexing" }, { "paragraph_id": 8, "text": "With \"Caffeine\", Google moved its back-end indexing system away from MapReduce and onto Bigtable, the company's distributed database platform.", "title": "Search indexing" }, { "paragraph_id": 9, "text": "In August 2018, Danny Sullivan from Google announced a broad core algorithm update. As per current analysis done by the industry leaders Search Engine Watch and Search Engine Land, the update was to drop down the medical and health-related websites that were not user friendly and were not providing good user experience. This is why the industry experts named it \"Medic\".", "title": "Search indexing" }, { "paragraph_id": 10, "text": "Google reserves very high standards for YMYL (Your Money or Your Life) pages. This is because misinformation can affect users financially, physically, or emotionally. Therefore, the update targeted particularly those YMYL pages that have low-quality content and misinformation. This resulted in the algorithm targeting health and medical-related websites more than others. However, many other websites from other industries were also negatively affected.", "title": "Search indexing" }, { "paragraph_id": 11, "text": "In 2013 the European Commission found that Google Search favored Google's own products, instead of the best result for consumers' needs. In February 2015 Google announced a major change to its mobile search algorithm which would favor mobile friendly over other websites. Nearly 60% of Google searches come from mobile phones. Google says it wants users to have access to premium quality websites. Those websites which lack a mobile-friendly interface would be ranked lower and it is expected that this update will cause a shake-up of ranks. Businesses who fail to update their websites accordingly could see a dip in their regular websites traffic.", "title": "Search results" }, { "paragraph_id": 12, "text": "Google's rise was largely due to a patented algorithm called PageRank which helps rank web pages that match a given search string. When Google was a Stanford research project, it was nicknamed BackRub because the technology checks backlinks to determine a site's importance. Other keyword-based methods to rank search results, used by many search engines that were once more popular than Google, would check how often the search terms occurred in a page, or how strongly associated the search terms were within each resulting page. The PageRank algorithm instead analyzes human-generated links assuming that web pages linked from many important pages are also important. The algorithm computes a recursive score for pages, based on the weighted sum of other pages linking to them. PageRank is thought to correlate well with human concepts of importance. In addition to PageRank, Google, over the years, has added many other secret criteria for determining the ranking of resulting pages. This is reported to comprise over 250 different indicators, the specifics of which are kept secret to avoid difficulties created by scammers and help Google maintain an edge over its competitors globally.", "title": "Search results" }, { "paragraph_id": 13, "text": "PageRank was influenced by a similar page-ranking and site-scoring algorithm earlier used for RankDex, developed by Robin Li in 1996. Larry Page's patent for PageRank filed in 1998 includes a citation to Li's earlier patent. Li later went on to create the Chinese search engine Baidu in 2000.", "title": "Search results" }, { "paragraph_id": 14, "text": "In a potential hint of Google's future direction of their Search algorithm, Google's then chief executive Eric Schmidt, said in a 2007 interview with the Financial Times: \"The goal is to enable Google users to be able to ask the question such as 'What shall I do tomorrow?' and 'What job shall I take?'\". Schmidt reaffirmed this during a 2010 interview with The Wall Street Journal: \"I actually think most people don't want Google to answer their questions, they want Google to tell them what they should be doing next.\"", "title": "Search results" }, { "paragraph_id": 15, "text": "Because Google is the most popular search engine, many webmasters attempt to influence their website's Google rankings. An industry of consultants has arisen to help websites increase their rankings on Google and other search engines. This field, called search engine optimization, attempts to discern patterns in search engine listings, and then develop a methodology for improving rankings to draw more searchers to their clients' sites. Search engine optimization encompasses both \"on page\" factors (like body copy, title elements, H1 heading elements and image alt attribute values) and Off Page Optimization factors (like anchor text and PageRank). The general idea is to affect Google's relevance algorithm by incorporating the keywords being targeted in various places \"on page\", in particular the title element and the body copy (note: the higher up in the page, presumably the better its keyword prominence and thus the ranking). Too many occurrences of the keyword, however, cause the page to look suspect to Google's spam checking algorithms. Google has published guidelines for website owners who would like to raise their rankings when using legitimate optimization consultants. It has been hypothesized, and, allegedly, is the opinion of the owner of one business about which there have been numerous complaints, that negative publicity, for example, numerous consumer complaints, may serve as well to elevate page rank on Google Search as favorable comments. The particular problem addressed in The New York Times article, which involved DecorMyEyes, was addressed shortly thereafter by an undisclosed fix in the Google algorithm. According to Google, it was not the frequently published consumer complaints about DecorMyEyes which resulted in the high ranking but mentions on news websites of events which affected the firm such as legal actions against it. Google Search Console helps to check for websites that use duplicate or copyright content.", "title": "Search results" }, { "paragraph_id": 16, "text": "In 2013, Google significantly upgraded its search algorithm with \"Hummingbird\". Its name was derived from the speed and accuracy of the hummingbird. The change was announced on September 26, 2013, having already been in use for a month. \"Hummingbird\" places greater emphasis on natural language queries, considering context and meaning over individual keywords. It also looks deeper at content on individual pages of a website, with improved ability to lead users directly to the most appropriate page rather than just a website's homepage. The upgrade marked the most significant change to Google search in years, with more \"human\" search interactions and a much heavier focus on conversation and meaning. Thus, web developers and writers were encouraged to optimize their sites with natural writing rather than forced keywords, and make effective use of technical web development for on-site navigation.", "title": "Search results" }, { "paragraph_id": 17, "text": "In the 2020s, observers reported on a perceived declining quality of search results found in Google Search.", "title": "Search results" }, { "paragraph_id": 18, "text": "In 2023, drawing on internal Google documents disclosed as part of the United States v. Google LLC (2020) antitrust case, technology reporters claimed that Google Search was \"bloated and overmonetized\" and that the \"semantic matching\" of search queries put advertising profits before quality. Wired withdrew Megan Gray's piece after Google complained about alleged inaccuracies, while the author reiterated that «As stated in court, \"A goal of Project Mercury was to increase commercial queries\"».", "title": "Search results" }, { "paragraph_id": 19, "text": "At the top of the search page, the approximate result count and the response time two digits behind decimal is noted. Of search results, page titles and URLs, dates, and a preview text snippet for each result appears. Along with web search results, sections with images, news, and videos may appear. The length of the previewed text snipped was experimented with in 2015 and 2017.", "title": "Interface" }, { "paragraph_id": 20, "text": "\"Universal search\" was launched by Google on May 16, 2007, as an idea that merged the results from different kinds of search types into one. Prior to Universal search, a standard Google search would consist of links only to websites. Universal search, however, incorporates a wide variety of sources, including websites, news, pictures, maps, blogs, videos, and more, all shown on the same search results page. Marissa Mayer, then-vice president of search products and user experience, described the goal of Universal search as \"we're attempting to break down the walls that traditionally separated our various search properties and integrate the vast amounts of information available into one simple set of search results.", "title": "Interface" }, { "paragraph_id": 21, "text": "In June 2017, Google expanded its search results to cover available job listings. The data is aggregated from various major job boards and collected by analyzing company homepages. Initially only available in English, the feature aims to simplify finding jobs suitable for each user.", "title": "Interface" }, { "paragraph_id": 22, "text": "In May 2009, Google announced that they would be parsing website microformats to populate search result pages with \"Rich snippets\". Such snippets include additional details about results, such as displaying reviews for restaurants and social media accounts for individuals.", "title": "Interface" }, { "paragraph_id": 23, "text": "In May 2016, Google expanded on the \"Rich snippets\" format to offer \"Rich cards\", which, similarly to snippets, display more information about results, but shows them at the top of the mobile website in a swipeable carousel-like format. Originally limited to movie and recipe websites in the United States only, the feature expanded to all countries globally in 2017.", "title": "Interface" }, { "paragraph_id": 24, "text": "The Knowledge Graph is a knowledge base used by Google to enhance its search engine's results with information gathered from a variety of sources. This information is presented to users in a box to the right of search results. Knowledge Graph boxes were added to Google's search engine in May 2012, starting in the United States, with international expansion by the end of the year. The information covered by the Knowledge Graph grew significantly after launch, tripling its original size within seven months, and being able to answer \"roughly one-third\" of the 100 billion monthly searches Google processed in May 2016. The information is often used as a spoken answer in Google Assistant and Google Home searches. The Knowledge Graph has been criticized for providing answers without source attribution.", "title": "Interface" }, { "paragraph_id": 25, "text": "In May 2017, Google enabled a new \"Personal\" tab in Google Search, letting users search for content in their Google accounts' various services, including email messages from Gmail and photos from Google Photos.", "title": "Interface" }, { "paragraph_id": 26, "text": "Google Discover, previously known as Google Feed, is a personalized stream of articles, videos, and other news-related content. The feed contains a \"mix of cards\" which show topics of interest based on users' interactions with Google, or topics they choose to follow directly. Cards include, \"links to news stories, YouTube videos, sports scores, recipes, and other content based on what [Google] determined you're most likely to be interested in at that particular moment.\" Users can also tell Google they're not interested in certain topics to avoid seeing future updates.", "title": "Interface" }, { "paragraph_id": 27, "text": "Google Discover launched in December 2016 and received a major update in July 2017. Another major update was released in September 2018, which renamed the app from Google Feed to Google Discover, updated the design, and adding more features.", "title": "Interface" }, { "paragraph_id": 28, "text": "Discover can be found on a tab in the Google app and by swiping left on the home screen of certain Android devices. As of 2019, Google will not allow political campaigns worldwide to target their advertisement to people to make them vote.", "title": "Interface" }, { "paragraph_id": 29, "text": "At the 2023 Google I/O event in May, Google unveiled Search Generative Experience (SGE), an experimental feature in Google Search available through Google Labs which produces AI-generated summaries in response to search prompts. This was part of Google's wider efforts to counter the unprecedented rise of generative AI technology, ushered by OpenAI's launch of ChatGPT, which sent Google executives to a panic due to its potential threat to Google Search. Google added the ability to generate images in October.", "title": "Interface" }, { "paragraph_id": 30, "text": "In late June 2011, Google introduced a new look to the Google home page in order to boost the use of the Google+ social tools.", "title": "Interface" }, { "paragraph_id": 31, "text": "One of the major changes was replacing the classic navigation bar with a black one. Google's digital creative director Chris Wiggins explains: \"We're working on a project to bring you a new and improved Google experience, and over the next few months, you'll continue to see more updates to our look and feel.\" The new navigation bar has been negatively received by a vocal minority.", "title": "Interface" }, { "paragraph_id": 32, "text": "In November 2013, Google started testing yellow labels for advertisements displayed in search results, to improve user experience. The new labels, highlighted in yellow color, and aligned to the left of each sponsored link help users differentiate between organic and sponsored results.", "title": "Interface" }, { "paragraph_id": 33, "text": "On December 15, 2016, Google rolled out a new desktop search interface that mimics their modular mobile user interface. The mobile design consists of a tabular design that highlights search features in boxes. and works by imitating the desktop Knowledge Graph real estate, which appears in the right-hand rail of the search engine result page, these featured elements frequently feature Twitter carousels, People Also Search For, and Top Stories (vertical and horizontal design) modules. The Local Pack and Answer Box were two of the original features of the Google SERP that were primarily showcased in this manner, but this new layout creates a previously unseen level of design consistency for Google results.", "title": "Interface" }, { "paragraph_id": 34, "text": "Google offers a \"Google Search\" mobile app for Android and iOS devices. The mobile apps exclusively feature Google Discover and a \"Collections\" feature, in which the user can save for later perusal any type of search result like images, bookmarks or map locations into groups. Android devices were introduced to a preview of the feed, perceived as related to Google Now, in December 2016, while it was made official on both Android and iOS in July 2017.", "title": "Interface" }, { "paragraph_id": 35, "text": "In April 2016, Google updated its Search app on Android to feature \"Trends\"; search queries gaining popularity appeared in the autocomplete box along with normal query autocompletion. The update received significant backlash, due to encouraging search queries unrelated to users' interests or intentions, prompting the company to issue an update with an opt-out option. In September 2017, the Google Search app on iOS was updated to feature the same functionality.", "title": "Interface" }, { "paragraph_id": 36, "text": "In December 2017, Google released \"Google Go\", an app designed to enable use of Google Search on physically smaller and lower-spec devices in multiple languages. A Google blog post about designing \"India-first\" products and features explains that it is \"tailor-made for the millions of people in [India and Indonesia] coming online for the first time\".", "title": "Interface" }, { "paragraph_id": 37, "text": "Google Search consists of a series of localized websites. The largest of those, the google.com site, is the top most-visited website in the world. Some of its features include a definition link for most searches including dictionary words, the number of results you got on your search, links to other searches (e.g. for words that Google believes to be misspelled, it provides a link to the search results using its proposed spelling), the ability to filter results to a date range, and many more.", "title": "Performing a search" }, { "paragraph_id": 38, "text": "Google search accepts queries as normal text, as well as individual keywords. It automatically corrects apparent misspellings by default (while offering to use the original spelling as a selectable alternative), and provides the same results regardless of capitalization. For more customized results, one can use a wide variety of operators, including, but not limited to:", "title": "Performing a search" }, { "paragraph_id": 39, "text": "Google also offers a Google Advanced Search page with a web interface to access the advanced features without needing to remember the special operators.", "title": "Performing a search" }, { "paragraph_id": 40, "text": "Google applies query expansion to submitted search queries, using techniques to deliver results that it considers \"smarter\" than the query users actually submitted. This technique involves several steps, including:", "title": "Performing a search" }, { "paragraph_id": 41, "text": "In 2008, Google started to give users autocompleted search suggestions in a list below the search bar while typing, originally with the approximate result count previewed for each listed search suggestion.", "title": "Performing a search" }, { "paragraph_id": 42, "text": "Google's homepage includes a button labeled \"I'm Feeling Lucky\". This feature originally allowed users to type in their search query, click the button and be taken directly to the first result, bypassing the search results page. Clicking it while leaving the search box empty opens Google's archive of Doodles. With the 2010 announcement of Google Instant, an automatic feature that immediately displays relevant results as users are typing in their query, the \"I'm Feeling Lucky\" button disappears, requiring that users opt-out of Instant results through search settings to keep using the \"I'm Feeling Lucky\" functionality. In 2012, \"I'm Feeling Lucky\" was changed to serve as an advertisement for Google services; users hover their computer mouse over the button, it spins and shows an emotion (\"I'm Feeling Puzzled\" or \"I'm Feeling Trendy\", for instance), and, when clicked, takes users to a Google service related to that emotion.", "title": "Performing a search" }, { "paragraph_id": 43, "text": "Tom Chavez of \"Rapt\", a firm helping to determine a website's advertising worth, estimated in 2007 that Google lost $110 million in revenue per year due to use of the button, which bypasses the advertisements found on the search results page.", "title": "Performing a search" }, { "paragraph_id": 44, "text": "Besides the main text-based search-engine function of Google search, it also offers multiple quick, interactive features. These include, but are not limited to:", "title": "Performing a search" }, { "paragraph_id": 45, "text": "During Google's developer conference, Google I/O, in May 2013, the company announced that users on Google Chrome and ChromeOS would be able to have the browser initiate an audio-based search by saying \"OK Google\", with no button presses required. After having the answer presented, users can follow up with additional, contextual questions; an example include initially asking \"OK Google, will it be sunny in Santa Cruz this weekend?\", hearing a spoken answer, and reply with \"how far is it from here?\" An update to the Chrome browser with voice-search functionality rolled out a week later, though it required a button press on a microphone icon rather than \"OK Google\" voice activation. Google released a browser extension for the Chrome browser, named with a \"beta\" tag for unfinished development, shortly thereafter. In May 2014, the company officially added \"OK Google\" into the browser itself; they removed it in October 2015, citing low usage, though the microphone icon for activation remained available. In May 2016, 20% of search queries on mobile devices were done through voice.", "title": "Performing a search" }, { "paragraph_id": 46, "text": "In addition to its tool for searching web pages, Google also provides services for searching images, Usenet newsgroups, news websites, videos (Google Videos), searching by locality, maps, and items for sale online. Google Videos allows searching the World Wide Web for video clips. The service evolved from Google Video, Google's discontinued video hosting service that also allowed to search the web for video clips.", "title": "Operations" }, { "paragraph_id": 47, "text": "In 2012, Google has indexed over 30 trillion web pages, and received 100 billion queries per month. It also caches much of the content that it indexes. Google operates other tools and services including Google News, Google Shopping, Google Maps, Google Custom Search, Google Earth, Google Docs, Picasa (discontinued), Panoramio (discontinued), YouTube, Google Translate, Google Blog Search and Google Desktop Search (discontinued).", "title": "Operations" }, { "paragraph_id": 48, "text": "There are also products available from Google that are not directly search-related. Gmail, for example, is a webmail application, but still includes search features; Google Browser Sync does not offer any search facilities, although it aims to organize your browsing time.", "title": "Operations" }, { "paragraph_id": 49, "text": "In 2009, Google claimed that a search query requires altogether about 1 kJ or 0.0003 kW·h, which is enough to raise the temperature of one liter of water by 0.24 °C. According to green search engine Ecosia, the industry standard for search engines is estimated to be about 0.2 grams of CO2 emission per search. Google's 40,000 searches per second translate to 8 kg CO2 per second or over 252 million kilos of CO2 per year.", "title": "Operations" }, { "paragraph_id": 50, "text": "On certain occasions, the logo on Google's webpage will change to a special version, known as a \"Google Doodle\". This is a picture, drawing, animation, or interactive game that includes the logo. It is usually done for a special event or day although not all of them are well known. Clicking on the Doodle links to a string of Google search results about the topic. The first was a reference to the Burning Man Festival in 1998, and others have been produced for the birthdays of notable people like Albert Einstein, historical events like the interlocking Lego block's 50th anniversary and holidays like Valentine's Day. Some Google Doodles have interactivity beyond a simple search, such as the famous \"Google Pac-Man\" version that appeared on May 21, 2010.", "title": "Operations" }, { "paragraph_id": 51, "text": "Google has been criticized for placing long-term cookies on users' machines to store preferences, a tactic which also enables them to track a user's search terms and retain the data for more than a year.", "title": "Criticism" }, { "paragraph_id": 52, "text": "Since 2012, Google Inc. has globally introduced encrypted connections for most of its clients, to bypass governative blockings of the commercial and IT services.", "title": "Criticism" }, { "paragraph_id": 53, "text": "In 2003, The New York Times complained about Google's indexing, claiming that Google's caching of content on its site infringed its copyright for the content. In both Field v. Google and Parker v. Google, the United States District Court of Nevada ruled in favor of Google.", "title": "Criticism" }, { "paragraph_id": 54, "text": "A 2019 New York Times article on Google Search showed that images of child sexual abuse had been found on Google and that the company had been reluctant at times to remove them.", "title": "Criticism" }, { "paragraph_id": 55, "text": "Google flags search results with the message \"This site may harm your computer\" if the site is known to install malicious software in the background or otherwise surreptitiously. For approximately 40 minutes on January 31, 2009, all search results were mistakenly classified as malware and could therefore not be clicked; instead a warning message was displayed and the user was required to enter the requested URL manually. The bug was caused by human error. The URL of \"/\" (which expands to all URLs) was mistakenly added to the malware patterns file.", "title": "Criticism" }, { "paragraph_id": 56, "text": "In 2007, a group of researchers observed a tendency for users to rely exclusively on Google Search for finding information, writing that \"With the Google interface the user gets the impression that the search results imply a kind of totality. ... In fact, one only sees a small part of what one could see if one also integrates other research tools.\"", "title": "Criticism" }, { "paragraph_id": 57, "text": "In 2011, Google Search query results have been shown by Internet activist Eli Pariser to be tailored to users, effectively isolating users in what he defined as a filter bubble. Pariser holds algorithms used in search engines such as Google Search responsible for catering \"a personal ecosystem of information\". Although contrasting views have mitigated the potential threat of \"informational dystopia\" and questioned the scientific nature of Pariser's claims, filter bubbles have been mentioned to account for the surprising results of the U.S. presidential election in 2016 alongside fake news and echo chambers, suggesting that Facebook and Google have designed personalized online realities in which \"we only see and hear what we like\".", "title": "Criticism" }, { "paragraph_id": 58, "text": "In 2012, the US Federal Trade Commission fined Google US$22.5 million for violating their agreement not to violate the privacy of users of Apple's Safari web browser. The FTC was also continuing to investigate if Google's favoring of their own services in their search results violated antitrust regulations.", "title": "Criticism" }, { "paragraph_id": 59, "text": "In a November 2023 disclosure, during the ongoing antitrust trial against Google, an economics professor at the University of Chicago revealed that Google pays Apple 36% of all search advertising revenue generated when users access Google through the Safari browser. This revelation reportedly caused Google's lead attorney to cringe visibly. The revenue generated from Safari users has been kept confidential, but the 36% figure suggests that it is likely in the tens of billions of dollars.", "title": "Criticism" }, { "paragraph_id": 60, "text": "Both Apple and Google have argued that disclosing the specific terms of their search default agreement would harm their competitive positions. However, the court ruled that the information was relevant to the antitrust case and ordered its disclosure. This revelation has raised concerns about the dominance of Google in the search engine market and the potential anticompetitive effects of its agreements with Apple.", "title": "Criticism" }, { "paragraph_id": 61, "text": "Google search engine robots are programmed to use algorithms that understand and predict human behavior. The book, Race After Technology: Abolitionist Tools for the New Jim Code by Ruha Benjamin talks about human bias as a behavior that the Google search engine can recognize. In 2016, some users google searched \"three Black teenagers\" and images of criminal mugshots of young African American teenagers came up. Then, the users searched \"three White teenagers\" and were presented with photos of smiling, happy teenagers. They also searched for \"three Asian teenagers\", and very revealing photos of Asian girls and women appeared. Benjamin concluded that these results reflect human prejudice and views on different ethnic groups. A group of analysts explained the concept of a racist computer program: \"The idea here is that computers, unlike people, can't be racist but we're increasingly learning that they do in fact take after their makers ... Some experts believe that this problem might stem from the hidden biases in the massive piles of data that the algorithms process as they learn to recognize patterns ... reproducing our worst values\".", "title": "Criticism" }, { "paragraph_id": 62, "text": "As people talk about \"googling\" rather than searching, the company has taken some steps to defend its trademark, in an effort to prevent it from becoming a generic trademark. This has led to lawsuits, threats of lawsuits, and the use of euphemisms, such as calling Google Search a famous web search engine.", "title": "Trademark" }, { "paragraph_id": 63, "text": "Until May 2013, Google Search had offered a feature to translate search queries into other languages. A Google spokesperson told Search Engine Land that \"Removing features is always tough, but we do think very hard about each decision and its implications for our users. Unfortunately, this feature never saw much pick up\".", "title": "Discontinued features" }, { "paragraph_id": 64, "text": "Instant search was announced in September 2010 as a feature that displayed suggested results while the user typed in their search query, initially only in select countries or to registered users. The primary advantage of the new system was its ability to save time, with Marissa Mayer, then-vice president of search products and user experience, proclaiming that the feature would save 2–5 seconds per search, elaborating that \"That may not seem like a lot at first, but it adds up. With Google Instant, we estimate that we'll save our users 11 hours with each passing second!\" Matt Van Wagner of Search Engine Land wrote that \"Personally, I kind of like Google Instant and I think it represents a natural evolution in the way search works\", and also praised Google's efforts in public relations, writing that \"With just a press conference and a few well-placed interviews, Google has parlayed this relatively minor speed improvement into an attention-grabbing front-page news story\". The upgrade also became notable for the company switching Google Search's underlying technology from HTML to AJAX.", "title": "Discontinued features" }, { "paragraph_id": 65, "text": "Instant Search could be disabled via Google's \"preferences\" menu for those who didn't want its functionality.", "title": "Discontinued features" }, { "paragraph_id": 66, "text": "The publication 2600: The Hacker Quarterly compiled a list of words that Google Instant did not show suggested results for, with a Google spokesperson giving the following statement to Mashable:", "title": "Discontinued features" }, { "paragraph_id": 67, "text": "There are several reasons you may not be seeing search queries for a particular topic. Among other things, we apply a narrow set of removal policies for pornography, violence, and hate speech. It's important to note that removing queries from Autocomplete is a hard problem, and not as simple as blacklisting particular terms and phrases.", "title": "Discontinued features" }, { "paragraph_id": 68, "text": "In search, we get more than one billion searches each day. Because of this, we take an algorithmic approach to removals, and just like our search algorithms, these are imperfect. We will continue to work to improve our approach to removals in Autocomplete, and are listening carefully to feedback from our users.", "title": "Discontinued features" }, { "paragraph_id": 69, "text": "Our algorithms look not only at specific words, but compound queries based on those words, and across all languages. So, for example, if there's a bad word in Russian, we may remove a compound word including the transliteration of the Russian word into English. We also look at the search results themselves for given queries. So, for example, if the results for a particular query seem pornographic, our algorithms may remove that query from Autocomplete, even if the query itself wouldn't otherwise violate our policies. This system is neither perfect nor instantaneous, and we will continue to work to make it better.", "title": "Discontinued features" }, { "paragraph_id": 70, "text": "PC Magazine discussed the inconsistency in how some forms of the same topic are allowed; for instance, \"lesbian\" was blocked, while \"gay\" was not, and \"cocaine\" was blocked, while \"crack\" and \"heroin\" were not. The report further stated that seemingly normal words were also blocked due to pornographic innuendos, most notably \"scat\", likely due to having two completely separate contextual meanings, one for music and one for a sexual practice.", "title": "Discontinued features" }, { "paragraph_id": 71, "text": "On July 26, 2017, Google removed Instant results, due to a growing number of searches on mobile devices, where interaction with search, as well as screen sizes, differ significantly from a computer.", "title": "Discontinued features" }, { "paragraph_id": 72, "text": "\"Instant previews\" allowed previewing screenshots of search results' web pages without having to open them. The feature was introduced in November 2010 to the desktop website and removed in April 2013 citing low usage.", "title": "Discontinued features" }, { "paragraph_id": 73, "text": "Various search engines provide encrypted Web search facilities. In May 2010 Google rolled out SSL-encrypted web search. The encrypted search was accessed at encrypted.google.com However, the web search is encrypted via Transport Layer Security (TLS) by default today, thus every search request should be automatically encrypted if TLS is supported by the web browser. On its support website, Google announced that the address encrypted.google.com would be turned off April 30, 2018, stating that all Google products and most new browsers use HTTPS connections as the reason for the discontinuation.", "title": "Discontinued features" }, { "paragraph_id": 74, "text": "Google Real-Time Search was a feature of Google Search in which search results also sometimes included real-time information from sources such as Twitter, Facebook, blogs, and news websites. The feature was introduced on December 7, 2009 and went offline on July 2, 2011, after the deal with Twitter expired. Real-Time Search included Facebook status updates beginning on February 24, 2010. A feature similar to Real-Time Search was already available on Microsoft's Bing search engine, which showed results from Twitter and Facebook. The interface for the engine showed a live, descending \"river\" of posts in the main region (which could be paused or resumed), while a bar chart metric of the frequency of posts containing a certain search term or hashtag was located on the right hand corner of the page above a list of most frequently reposted posts and outgoing links. Hashtag search links were also supported, as were \"promoted\" tweets hosted by Twitter (located persistently on top of the river) and thumbnails of retweeted image or video links.", "title": "Discontinued features" }, { "paragraph_id": 75, "text": "In January 2011, geolocation links of posts were made available alongside results in Real-Time Search. In addition, posts containing syndicated or attached shortened links were made searchable by the link: query option. In July 2011 Real-Time Search became inaccessible, with the Real-Time link in the Google sidebar disappearing and a custom 404 error page generated by Google returned at its former URL. Google originally suggested that the interruption was temporary and related to the launch of Google+; they subsequently announced that it was due to the expiry of a commercial arrangement with Twitter to provide access to tweets.", "title": "Discontinued features" } ]
Google Search is a search engine owned and operated by Google. Handling more than 3.5 billion searches per day, it has a 92% share of the global search engine market. It is the most-visited website in the world. Approximately 26.75% of Google's monthly global traffic comes from the United States, 4.44% from India, 4.4% from Brazil, 3.92% from the United Kingdom, 3.84% from Japan and the remaining 56.65% from other countries according to data provided by Similarweb. The order of search results returned by Google is based, in part, on a priority rank system called "PageRank". Google Search also provides many different options for customized searches, using symbols to include, exclude, specify or require certain search behavior, and offers specialized interactive experiences, such as flight status and package tracking, weather forecasts, currency, unit, and time conversions, word definitions, and more. The main purpose of Google Search is to search for text in publicly accessible documents offered by web servers, as opposed to other data, such as images or data contained in databases. It was originally developed in 1996 by Larry Page, Sergey Brin, and Scott Hassan. In 2011, Google introduced "Google Voice Search" to search for spoken, rather than typed, words. In 2012, Google introduced a semantic search feature named Knowledge Graph. Analysis of the frequency of search terms may indicate economic, social and health trends. Data about the frequency of use of search terms on Google can be openly inquired via Google Trends and have been shown to correlate with flu outbreaks and unemployment levels, and provide the information faster than traditional reporting methods and surveys. As of mid-2016, Google's search engine has begun to rely on deep neural networks.
2001-10-30T12:17:13Z
2023-12-31T03:04:21Z
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https://en.wikipedia.org/wiki/Google_Search
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Genius
Genius is a characteristic of original and exceptional insight in the performance of some art or endeavor that surpasses expectations, sets new standards for the future, establishes better methods of operation, or remains outside the capabilities of competitors. Genius is associated with intellectual ability and creative productivity. The term genius can also be used to refer to people characterised by genius, and/or to polymaths who excel across many subjects. There is no scientifically precise definition of genius. When used to refer to the characteristic, genius is associated with talent, but several authors such as Cesare Lombroso and Arthur Schopenhauer systematically distinguish these terms. Walter Isaacson, biographer of many well-known geniuses, explains that although high intelligence may be a prerequisite, the most common trait that actually defines a genius may be the extraordinary ability to apply creativity and imaginative thinking to almost any situation. In ancient Rome, the genius (plural in Latin genii) was the guiding spirit or tutelary deity of a person, family (gens), or place (genius loci). Connotations of the word in Latin have a lineal relationship with the Greek word daemon in classical and medieval texts, and also share a relationship with the Arabic word al-ghul (as in the star Algol; its literal meaning being "the Demon"). The noun is related to the Latin verbs "gignere" (to beget, to give birth to) and "generare" (to beget, to generate, to procreate), and derives directly from the Indo-European stem thereof: "ǵenh" (to produce, to beget, to give birth). Because the achievements of exceptional individuals seemed to indicate the presence of a particularly powerful genius, by the time of Augustus, the word began to acquire its secondary meaning of "inspiration, talent". The term genius acquired its modern sense in the eighteenth century, and is a conflation of two Latin terms: genius, as above, and Ingenium, a related noun referring to our innate dispositions, talents, and inborn nature. Beginning to blend the concepts of the divine and the talented, the Encyclopédie article on genius (génie) describes such a person as "he whose soul is more expansive and struck by the feelings of all others; interested by all that is in nature never to receive an idea unless it evokes a feeling; everything excites him and on which nothing is lost." The assessment of intelligence was initiated by Francis Galton (1822–1911) and James McKeen Cattell. They had advocated the analysis of reaction time and sensory acuity as measures of "neurophysiological efficiency" and the analysis of sensory acuity as a measure of intelligence. Galton is regarded as the founder of psychometry. He studied the work of his older half-cousin Charles Darwin about biological evolution. Hypothesizing that eminence is inherited from ancestors, Galton did a study of families of eminent people in Britain, publishing it in 1869 as Hereditary Genius. Galton's ideas were elaborated from the work of two early 19th-century pioneers in statistics: Carl Friedrich Gauss and Adolphe Quetelet. Gauss discovered the normal distribution (bell-shaped curve): given a large number of measurements of the same variable under the same conditions, they vary at random from a most frequent value, the "average", to two least frequent values at maximum differences greater and lower than the most frequent value. Quetelet discovered that the bell-shaped curve applied to social statistics gathered by the French government in the course of its normal processes on large numbers of people passing through the courts and the military. His initial work in criminology led him to observe "the greater the number of individuals observed the more do peculiarities become effaced...". This ideal from which the peculiarities were effaced became "the average man". Galton was inspired by Quetelet to define the average man as "an entire normal scheme"; that is, if one combines the normal curves of every measurable human characteristic, one will, in theory, perceive a syndrome straddled by "the average man" and flanked by persons that are different. In contrast to Quetelet, Galton's average man was not statistical but was theoretical only. There was no measure of general averageness, only a large number of very specific averages. Setting out to discover a general measure of the average, Galton looked at educational statistics and found bell-curves in test results of all sorts; initially in mathematics grades for the final honors examination and in entrance examination scores for Sandhurst. Galton's method in Hereditary Genius was to count and assess the eminent relatives of eminent men. He found that the number of eminent relatives was greater with a closer degree of kinship. This work is considered the first example of historiometry, an analytical study of historical human progress. The work is controversial and has been criticized for several reasons. Galton then departed from Gauss in a way that became crucial to the history of the 20th century AD. The bell-shaped curve was not random, he concluded. The differences between the average and the upper end were due to a non-random factor, "natural ability", which he defined as "those qualities of intellect and disposition, which urge and qualify men to perform acts that lead to reputation…a nature which, when left to itself, will, urged by an inherent stimulus, climb the path that leads to eminence." The apparent randomness of the scores was due to the randomness of this natural ability in the population as a whole, in theory. Criticisms include that Galton's study fails to account for the impact of social status and the associated availability of resources in the form of economic inheritance, meaning that inherited "eminence" or "genius" can be gained through the enriched environment provided by wealthy families. Galton went on to develop the field of eugenics. Galton attempted to control for economic inheritance by comparing the adopted nephews of popes, who would have the advantage of wealth without being as closely related to popes as sons are to their fathers, to the biological children of eminent individuals. Genius is expressed in a variety of forms (e.g., mathematical, literary, musical performance). Persons with genius tend to have strong intuitions about their domains, and they build on these insights with tremendous energy. Carl Rogers, a founder of the Humanistic Approach to Psychology, expands on the idea of a genius trusting his or her intuition in a given field, writing: "El Greco, for example, must have realized as he looked at some of his early work, that 'good artists do not paint like that.' But somehow he trusted his own experiencing of life, the process of himself, sufficiently that he could go on expressing his own unique perceptions. It was as though he could say, 'Good artists don't paint like this, but I paint like this.' Or to move to another field, Ernest Hemingway was surely aware that 'good writers do not write like this.' But fortunately he moved toward being Hemingway, being himself, rather than toward someone else's conception of a good writer." Several people commonly regarded as geniuses have been or were diagnosed with mental disorders, for example Vincent van Gogh, Virginia Woolf, John Forbes Nash Jr., and Ernest Hemingway. It has been suggested that there exists a connection between mental illness, in particular schizophrenia and bipolar disorder, and genius. Individuals with bipolar disorder and schizotypal personality disorder, the latter of which being more common amongst relatives of schizophrenics, tend to show elevated creativity. In a 2010 study done in the Karolinska Institute it was observed that highly creative individuals and schizophrenics have a lower density of thalamic dopamine D2 receptors. One of the investigators explained that "Fewer D2 receptors in the thalamus probably means a lower degree of signal filtering, and thus a higher flow of information from the thalamus." This could be a possible mechanism behind the ability of healthy highly creative people to see numerous uncommon connections in a problem-solving situation and the bizarre associations found in the schizophrenics. Galton was a pioneer in investigating both eminent human achievement and mental testing. In his book Hereditary Genius, written before the development of IQ testing, he proposed that hereditary influences on eminent achievement are strong, and that eminence is rare in the general population. Lewis Terman chose "'near' genius or genius" as the classification label for the highest classification on his 1916 version of the Stanford–Binet test. By 1926, Terman began publishing about a longitudinal study of California schoolchildren who were referred for IQ testing by their schoolteachers, called Genetic Studies of Genius, which he conducted for the rest of his life. Catherine M. Cox, a colleague of Terman's, wrote a whole book, The Early Mental Traits of 300 Geniuses, published as volume 2 of The Genetic Studies of Genius book series, in which she analyzed biographical data about historic geniuses. Although her estimates of childhood IQ scores of historical figures who never took IQ tests have been criticized on methodological grounds, Cox's study was thorough in finding out what else matters besides IQ in becoming a genius. By the 1937 second revision of the Stanford–Binet test, Terman no longer used the term "genius" as an IQ classification, nor has any subsequent IQ test. In 1939, David Wechsler specifically commented that "we are rather hesitant about calling a person a genius on the basis of a single intelligence test score". The Terman longitudinal study in California eventually provided historical evidence regarding how genius is related to IQ scores. Many California pupils were recommended for the study by schoolteachers. Two pupils who were tested but rejected for inclusion in the study (because their IQ scores were too low) grew up to be Nobel Prize winners in physics, William Shockley, and Luis Walter Alvarez. Based on the historical findings of the Terman study and on biographical examples such as Richard Feynman, who had a self-reported IQ of 125 and went on to win the Nobel Prize in physics and become widely known as a genius, the current view of psychologists and other scholars of genius is that a minimum level of IQ (approximately 125) is necessary for genius but not sufficient, and must be combined with personality characteristics such as drive and persistence, plus the necessary opportunities for talent development. For instance, in a chapter in an edited volume on achievement, IQ researcher Arthur Jensen proposed a multiplicative model of genius consisting of high ability, high productivity, and high creativity. Jensen's model was motivated by the finding that eminent achievement is highly positively skewed, a finding known as Price's law, and related to Lotka's law. Some high IQ individuals join a High IQ society. The most famous and largest is Mensa International, but many other more selective organizations also exist, including Intertel, Triple Nine Society, Prometheus Society, and Mega Society. Various philosophers have proposed definitions of what genius is and what that implies in the context of their philosophical theories. In the philosophy of David Hume, the way society perceives genius is similar to the way society perceives the ignorant. Hume states that a person with the characteristics of a genius is looked at as a person disconnected from society, as well as a person who works remotely, at a distance, away from the rest of the world. On the other hand, the mere ignorant is still more despised; nor is any thing deemed a surer sign of an illiberal genius in an age and nation where the sciences flourish, than to be entirely destitute of all relish for those noble entertainments. The most perfect character is supposed to lie between those extremes; retaining an equal ability and taste for books, company, and business; preserving in conversation that discernment and delicacy which arise from polite letters; and in business, that probity and accuracy which are the natural result of a just philosophy. In the philosophy of Immanuel Kant, genius is the ability to independently arrive at and understand concepts that would normally have to be taught by another person. For Kant, originality was the essential character of genius. The artworks of the Kantian genius are also characterized by their exemplarity which is imitated by other artists and serve as a rule for other aesthetical judgements. This genius is a talent for producing ideas which can be described as non-imitative. Kant's discussion of the characteristics of genius is largely contained within the Critique of Judgment and was well received by the Romantics of the early 19th century. In addition, much of Schopenhauer's theory of genius, particularly regarding talent and freedom from constraint, is directly derived from paragraphs of Part I of Kant's Critique of Judgment. Genius is a talent for producing something for which no determinate rule can be given, not a predisposition consisting of a skill for something that can be learned by following some rule or other. In the philosophy of Arthur Schopenhauer, a genius is someone in whom intellect predominates over "will" much more than within the average person. In Schopenhauer's aesthetics, this predominance of the intellect over the will allows the genius to create artistic or academic works that are objects of pure, disinterested contemplation, the chief criterion of the aesthetic experience for Schopenhauer. Their remoteness from mundane concerns means that Schopenhauer's geniuses often display maladaptive traits in more mundane concerns; in Schopenhauer's words, they fall into the mire while gazing at the stars, an allusion to Plato's dialogue Theætetus, in which Socrates tells of Thales (the first philosopher) being ridiculed for falling in such circumstances. As he says in Volume 2 of The World as Will and Representation: Talent hits a target no one else can hit; Genius hits a target no one else can see. In the philosophy of Thomas Carlyle, genius is called (in Past and Present) "the inspired gift of God"; the "Man of Genius" possesses "the presence of God Most High in a man". The actions of the "Man of Genius" can manifest this in various ways: in his "transcendent capacity of taking trouble" (often misquoted as "an infinite capacity for taking pains"), in that he can "recognise how every object has a divine beauty in it" as a poet or painter does, or in that he has "an original power of thinking". In accordance with his Great Man theory, Carlyle considered such individuals as Odin, William the Conqueror and Frederick the Great to be "Men of Genius". In the philosophy of Bertrand Russell, genius entails that an individual possesses unique qualities and talents that make the genius especially valuable to the society in which he or she operates, once given the chance to contribute to society. Russell's philosophy further maintains, however, that it is possible for such geniuses to be crushed in their youth and lost forever when the environment around them is unsympathetic to their potential maladaptive traits. Russell rejected the notion he believed was popular during his lifetime that, "genius will out". In his classic work The Limitations of Science, J. W. N. Sullivan discussed a utilitarian philosophy on the retrospective classification of genius. Namely, scholarship that is so original that, were it not for that particular contributor, would not have emerged until much later (if ever) is characteristic of genius. Conversely, scholarship that was ripe for development, no matter how profound or prominent, is not necessarily indicative of genius. Geniuses are variously portrayed in literature and film as both protagonists and antagonists, and may be the hero or villain of the story. In pop culture, the genius is often stereotypically depicted as either the wisecracking whiz or the tortured genius. Throughout both literature and movies, the tortured genius character is often seen as an imperfect or tragic hero who wrestles with the burden of superior intelligence, arrogance, eccentricities, addiction, awkwardness, mental health issues, a lack of social skills, isolation, or other insecurities. They regularly experience existential crises, struggling to overcome personal challenges to employ their special abilities for good or succumbing to their own tragic flaws and vices. This common motif repeated throughout fiction is notably present in the characters of Dr. Bruce Banner in the Hulk and Dr. Henry Jekyll in The Strange Case of Dr. Jekyll and Mr. Hyde, among others. Although not as extreme, other examples of literary and filmic characterizations of the tortured genius stereotype, to varying degrees, include: Sherlock Holmes, Wolfgang Amadeus Mozart in Amadeus, Dr. John Nash in A Beautiful Mind, Leonardo da Vinci in Da Vinci's Demons, Dr. Gregory House in House, Will Hunting in Good Will Hunting, and Dr. Sheldon Cooper in The Big Bang Theory. One of the most famous genius-level rivalries to occur in literary fiction is between Sherlock Holmes and his nemesis Professor Moriarty; the latter character also identified as the modern archetype of an evil genius. Sources listed in chronological order of publication within each category. Or in other words Scott j simpkin
[ { "paragraph_id": 0, "text": "Genius is a characteristic of original and exceptional insight in the performance of some art or endeavor that surpasses expectations, sets new standards for the future, establishes better methods of operation, or remains outside the capabilities of competitors. Genius is associated with intellectual ability and creative productivity. The term genius can also be used to refer to people characterised by genius, and/or to polymaths who excel across many subjects.", "title": "" }, { "paragraph_id": 1, "text": "There is no scientifically precise definition of genius. When used to refer to the characteristic, genius is associated with talent, but several authors such as Cesare Lombroso and Arthur Schopenhauer systematically distinguish these terms. Walter Isaacson, biographer of many well-known geniuses, explains that although high intelligence may be a prerequisite, the most common trait that actually defines a genius may be the extraordinary ability to apply creativity and imaginative thinking to almost any situation.", "title": "" }, { "paragraph_id": 2, "text": "In ancient Rome, the genius (plural in Latin genii) was the guiding spirit or tutelary deity of a person, family (gens), or place (genius loci). Connotations of the word in Latin have a lineal relationship with the Greek word daemon in classical and medieval texts, and also share a relationship with the Arabic word al-ghul (as in the star Algol; its literal meaning being \"the Demon\").", "title": "Etymology" }, { "paragraph_id": 3, "text": "The noun is related to the Latin verbs \"gignere\" (to beget, to give birth to) and \"generare\" (to beget, to generate, to procreate), and derives directly from the Indo-European stem thereof: \"ǵenh\" (to produce, to beget, to give birth). Because the achievements of exceptional individuals seemed to indicate the presence of a particularly powerful genius, by the time of Augustus, the word began to acquire its secondary meaning of \"inspiration, talent\". The term genius acquired its modern sense in the eighteenth century, and is a conflation of two Latin terms: genius, as above, and Ingenium, a related noun referring to our innate dispositions, talents, and inborn nature. Beginning to blend the concepts of the divine and the talented, the Encyclopédie article on genius (génie) describes such a person as \"he whose soul is more expansive and struck by the feelings of all others; interested by all that is in nature never to receive an idea unless it evokes a feeling; everything excites him and on which nothing is lost.\"", "title": "Etymology" }, { "paragraph_id": 4, "text": "The assessment of intelligence was initiated by Francis Galton (1822–1911) and James McKeen Cattell. They had advocated the analysis of reaction time and sensory acuity as measures of \"neurophysiological efficiency\" and the analysis of sensory acuity as a measure of intelligence.", "title": "Historical development" }, { "paragraph_id": 5, "text": "Galton is regarded as the founder of psychometry. He studied the work of his older half-cousin Charles Darwin about biological evolution. Hypothesizing that eminence is inherited from ancestors, Galton did a study of families of eminent people in Britain, publishing it in 1869 as Hereditary Genius. Galton's ideas were elaborated from the work of two early 19th-century pioneers in statistics: Carl Friedrich Gauss and Adolphe Quetelet. Gauss discovered the normal distribution (bell-shaped curve): given a large number of measurements of the same variable under the same conditions, they vary at random from a most frequent value, the \"average\", to two least frequent values at maximum differences greater and lower than the most frequent value. Quetelet discovered that the bell-shaped curve applied to social statistics gathered by the French government in the course of its normal processes on large numbers of people passing through the courts and the military. His initial work in criminology led him to observe \"the greater the number of individuals observed the more do peculiarities become effaced...\". This ideal from which the peculiarities were effaced became \"the average man\".", "title": "Historical development" }, { "paragraph_id": 6, "text": "Galton was inspired by Quetelet to define the average man as \"an entire normal scheme\"; that is, if one combines the normal curves of every measurable human characteristic, one will, in theory, perceive a syndrome straddled by \"the average man\" and flanked by persons that are different. In contrast to Quetelet, Galton's average man was not statistical but was theoretical only. There was no measure of general averageness, only a large number of very specific averages. Setting out to discover a general measure of the average, Galton looked at educational statistics and found bell-curves in test results of all sorts; initially in mathematics grades for the final honors examination and in entrance examination scores for Sandhurst.", "title": "Historical development" }, { "paragraph_id": 7, "text": "Galton's method in Hereditary Genius was to count and assess the eminent relatives of eminent men. He found that the number of eminent relatives was greater with a closer degree of kinship. This work is considered the first example of historiometry, an analytical study of historical human progress. The work is controversial and has been criticized for several reasons. Galton then departed from Gauss in a way that became crucial to the history of the 20th century AD. The bell-shaped curve was not random, he concluded. The differences between the average and the upper end were due to a non-random factor, \"natural ability\", which he defined as \"those qualities of intellect and disposition, which urge and qualify men to perform acts that lead to reputation…a nature which, when left to itself, will, urged by an inherent stimulus, climb the path that leads to eminence.\" The apparent randomness of the scores was due to the randomness of this natural ability in the population as a whole, in theory.", "title": "Historical development" }, { "paragraph_id": 8, "text": "Criticisms include that Galton's study fails to account for the impact of social status and the associated availability of resources in the form of economic inheritance, meaning that inherited \"eminence\" or \"genius\" can be gained through the enriched environment provided by wealthy families. Galton went on to develop the field of eugenics. Galton attempted to control for economic inheritance by comparing the adopted nephews of popes, who would have the advantage of wealth without being as closely related to popes as sons are to their fathers, to the biological children of eminent individuals.", "title": "Historical development" }, { "paragraph_id": 9, "text": "Genius is expressed in a variety of forms (e.g., mathematical, literary, musical performance). Persons with genius tend to have strong intuitions about their domains, and they build on these insights with tremendous energy. Carl Rogers, a founder of the Humanistic Approach to Psychology, expands on the idea of a genius trusting his or her intuition in a given field, writing: \"El Greco, for example, must have realized as he looked at some of his early work, that 'good artists do not paint like that.' But somehow he trusted his own experiencing of life, the process of himself, sufficiently that he could go on expressing his own unique perceptions. It was as though he could say, 'Good artists don't paint like this, but I paint like this.' Or to move to another field, Ernest Hemingway was surely aware that 'good writers do not write like this.' But fortunately he moved toward being Hemingway, being himself, rather than toward someone else's conception of a good writer.\"", "title": "Psychology" }, { "paragraph_id": 10, "text": "Several people commonly regarded as geniuses have been or were diagnosed with mental disorders, for example Vincent van Gogh, Virginia Woolf, John Forbes Nash Jr., and Ernest Hemingway.", "title": "Psychology" }, { "paragraph_id": 11, "text": "It has been suggested that there exists a connection between mental illness, in particular schizophrenia and bipolar disorder, and genius. Individuals with bipolar disorder and schizotypal personality disorder, the latter of which being more common amongst relatives of schizophrenics, tend to show elevated creativity.", "title": "Psychology" }, { "paragraph_id": 12, "text": "In a 2010 study done in the Karolinska Institute it was observed that highly creative individuals and schizophrenics have a lower density of thalamic dopamine D2 receptors. One of the investigators explained that \"Fewer D2 receptors in the thalamus probably means a lower degree of signal filtering, and thus a higher flow of information from the thalamus.\" This could be a possible mechanism behind the ability of healthy highly creative people to see numerous uncommon connections in a problem-solving situation and the bizarre associations found in the schizophrenics.", "title": "Psychology" }, { "paragraph_id": 13, "text": "Galton was a pioneer in investigating both eminent human achievement and mental testing. In his book Hereditary Genius, written before the development of IQ testing, he proposed that hereditary influences on eminent achievement are strong, and that eminence is rare in the general population. Lewis Terman chose \"'near' genius or genius\" as the classification label for the highest classification on his 1916 version of the Stanford–Binet test. By 1926, Terman began publishing about a longitudinal study of California schoolchildren who were referred for IQ testing by their schoolteachers, called Genetic Studies of Genius, which he conducted for the rest of his life. Catherine M. Cox, a colleague of Terman's, wrote a whole book, The Early Mental Traits of 300 Geniuses, published as volume 2 of The Genetic Studies of Genius book series, in which she analyzed biographical data about historic geniuses. Although her estimates of childhood IQ scores of historical figures who never took IQ tests have been criticized on methodological grounds, Cox's study was thorough in finding out what else matters besides IQ in becoming a genius. By the 1937 second revision of the Stanford–Binet test, Terman no longer used the term \"genius\" as an IQ classification, nor has any subsequent IQ test. In 1939, David Wechsler specifically commented that \"we are rather hesitant about calling a person a genius on the basis of a single intelligence test score\".", "title": "Psychology" }, { "paragraph_id": 14, "text": "The Terman longitudinal study in California eventually provided historical evidence regarding how genius is related to IQ scores. Many California pupils were recommended for the study by schoolteachers. Two pupils who were tested but rejected for inclusion in the study (because their IQ scores were too low) grew up to be Nobel Prize winners in physics, William Shockley, and Luis Walter Alvarez. Based on the historical findings of the Terman study and on biographical examples such as Richard Feynman, who had a self-reported IQ of 125 and went on to win the Nobel Prize in physics and become widely known as a genius, the current view of psychologists and other scholars of genius is that a minimum level of IQ (approximately 125) is necessary for genius but not sufficient, and must be combined with personality characteristics such as drive and persistence, plus the necessary opportunities for talent development. For instance, in a chapter in an edited volume on achievement, IQ researcher Arthur Jensen proposed a multiplicative model of genius consisting of high ability, high productivity, and high creativity. Jensen's model was motivated by the finding that eminent achievement is highly positively skewed, a finding known as Price's law, and related to Lotka's law.", "title": "Psychology" }, { "paragraph_id": 15, "text": "Some high IQ individuals join a High IQ society. The most famous and largest is Mensa International, but many other more selective organizations also exist, including Intertel, Triple Nine Society, Prometheus Society, and Mega Society.", "title": "Psychology" }, { "paragraph_id": 16, "text": "Various philosophers have proposed definitions of what genius is and what that implies in the context of their philosophical theories.", "title": "Philosophy" }, { "paragraph_id": 17, "text": "In the philosophy of David Hume, the way society perceives genius is similar to the way society perceives the ignorant. Hume states that a person with the characteristics of a genius is looked at as a person disconnected from society, as well as a person who works remotely, at a distance, away from the rest of the world.", "title": "Philosophy" }, { "paragraph_id": 18, "text": "On the other hand, the mere ignorant is still more despised; nor is any thing deemed a surer sign of an illiberal genius in an age and nation where the sciences flourish, than to be entirely destitute of all relish for those noble entertainments. The most perfect character is supposed to lie between those extremes; retaining an equal ability and taste for books, company, and business; preserving in conversation that discernment and delicacy which arise from polite letters; and in business, that probity and accuracy which are the natural result of a just philosophy.", "title": "Philosophy" }, { "paragraph_id": 19, "text": "In the philosophy of Immanuel Kant, genius is the ability to independently arrive at and understand concepts that would normally have to be taught by another person. For Kant, originality was the essential character of genius. The artworks of the Kantian genius are also characterized by their exemplarity which is imitated by other artists and serve as a rule for other aesthetical judgements. This genius is a talent for producing ideas which can be described as non-imitative. Kant's discussion of the characteristics of genius is largely contained within the Critique of Judgment and was well received by the Romantics of the early 19th century. In addition, much of Schopenhauer's theory of genius, particularly regarding talent and freedom from constraint, is directly derived from paragraphs of Part I of Kant's Critique of Judgment.", "title": "Philosophy" }, { "paragraph_id": 20, "text": "Genius is a talent for producing something for which no determinate rule can be given, not a predisposition consisting of a skill for something that can be learned by following some rule or other.", "title": "Philosophy" }, { "paragraph_id": 21, "text": "In the philosophy of Arthur Schopenhauer, a genius is someone in whom intellect predominates over \"will\" much more than within the average person. In Schopenhauer's aesthetics, this predominance of the intellect over the will allows the genius to create artistic or academic works that are objects of pure, disinterested contemplation, the chief criterion of the aesthetic experience for Schopenhauer. Their remoteness from mundane concerns means that Schopenhauer's geniuses often display maladaptive traits in more mundane concerns; in Schopenhauer's words, they fall into the mire while gazing at the stars, an allusion to Plato's dialogue Theætetus, in which Socrates tells of Thales (the first philosopher) being ridiculed for falling in such circumstances. As he says in Volume 2 of The World as Will and Representation:", "title": "Philosophy" }, { "paragraph_id": 22, "text": "Talent hits a target no one else can hit; Genius hits a target no one else can see.", "title": "Philosophy" }, { "paragraph_id": 23, "text": "In the philosophy of Thomas Carlyle, genius is called (in Past and Present) \"the inspired gift of God\"; the \"Man of Genius\" possesses \"the presence of God Most High in a man\". The actions of the \"Man of Genius\" can manifest this in various ways: in his \"transcendent capacity of taking trouble\" (often misquoted as \"an infinite capacity for taking pains\"), in that he can \"recognise how every object has a divine beauty in it\" as a poet or painter does, or in that he has \"an original power of thinking\". In accordance with his Great Man theory, Carlyle considered such individuals as Odin, William the Conqueror and Frederick the Great to be \"Men of Genius\".", "title": "Philosophy" }, { "paragraph_id": 24, "text": "In the philosophy of Bertrand Russell, genius entails that an individual possesses unique qualities and talents that make the genius especially valuable to the society in which he or she operates, once given the chance to contribute to society. Russell's philosophy further maintains, however, that it is possible for such geniuses to be crushed in their youth and lost forever when the environment around them is unsympathetic to their potential maladaptive traits. Russell rejected the notion he believed was popular during his lifetime that, \"genius will out\".", "title": "Philosophy" }, { "paragraph_id": 25, "text": "In his classic work The Limitations of Science, J. W. N. Sullivan discussed a utilitarian philosophy on the retrospective classification of genius. Namely, scholarship that is so original that, were it not for that particular contributor, would not have emerged until much later (if ever) is characteristic of genius. Conversely, scholarship that was ripe for development, no matter how profound or prominent, is not necessarily indicative of genius.", "title": "Philosophy" }, { "paragraph_id": 26, "text": "Geniuses are variously portrayed in literature and film as both protagonists and antagonists, and may be the hero or villain of the story. In pop culture, the genius is often stereotypically depicted as either the wisecracking whiz or the tortured genius.", "title": "Literature and pop culture" }, { "paragraph_id": 27, "text": "Throughout both literature and movies, the tortured genius character is often seen as an imperfect or tragic hero who wrestles with the burden of superior intelligence, arrogance, eccentricities, addiction, awkwardness, mental health issues, a lack of social skills, isolation, or other insecurities. They regularly experience existential crises, struggling to overcome personal challenges to employ their special abilities for good or succumbing to their own tragic flaws and vices. This common motif repeated throughout fiction is notably present in the characters of Dr. Bruce Banner in the Hulk and Dr. Henry Jekyll in The Strange Case of Dr. Jekyll and Mr. Hyde, among others. Although not as extreme, other examples of literary and filmic characterizations of the tortured genius stereotype, to varying degrees, include: Sherlock Holmes, Wolfgang Amadeus Mozart in Amadeus, Dr. John Nash in A Beautiful Mind, Leonardo da Vinci in Da Vinci's Demons, Dr. Gregory House in House, Will Hunting in Good Will Hunting, and Dr. Sheldon Cooper in The Big Bang Theory.", "title": "Literature and pop culture" }, { "paragraph_id": 28, "text": "One of the most famous genius-level rivalries to occur in literary fiction is between Sherlock Holmes and his nemesis Professor Moriarty; the latter character also identified as the modern archetype of an evil genius.", "title": "Literature and pop culture" }, { "paragraph_id": 29, "text": "Sources listed in chronological order of publication within each category.", "title": "Further reading" }, { "paragraph_id": 30, "text": "Or in other words Scott j simpkin", "title": "Further reading" } ]
Genius is a characteristic of original and exceptional insight in the performance of some art or endeavor that surpasses expectations, sets new standards for the future, establishes better methods of operation, or remains outside the capabilities of competitors. Genius is associated with intellectual ability and creative productivity. The term genius can also be used to refer to people characterised by genius, and/or to polymaths who excel across many subjects. There is no scientifically precise definition of genius. When used to refer to the characteristic, genius is associated with talent, but several authors such as Cesare Lombroso and Arthur Schopenhauer systematically distinguish these terms. Walter Isaacson, biographer of many well-known geniuses, explains that although high intelligence may be a prerequisite, the most common trait that actually defines a genius may be the extraordinary ability to apply creativity and imaginative thinking to almost any situation.
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https://en.wikipedia.org/wiki/Genius
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Grain (disambiguation)
Grains are the seeds of arable crops or the crops bearing them. Grain or grains may also refer to:
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Grains are the seeds of arable crops or the crops bearing them. Grain or grains may also refer to:
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https://en.wikipedia.org/wiki/Grain_(disambiguation)
12,435
Grass (disambiguation)
Grass refers to the many species of plants in the family Poaceae. Grass may also refer to:
[ { "paragraph_id": 0, "text": "Grass refers to the many species of plants in the family Poaceae.", "title": "" }, { "paragraph_id": 1, "text": "Grass may also refer to:", "title": "" } ]
Grass refers to the many species of plants in the family Poaceae. Grass may also refer to:
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https://en.wikipedia.org/wiki/Grass_(disambiguation)
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Grape
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus Vitis. Grapes are a non-climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, and the fruit has been used as human food over history. Eaten fresh or in dried form (as raisins, currants and sultanas), grapes also hold cultural significance in many parts of the world, particularly for their role in winemaking. Other grape-derived products include various types of jam, juice, vinegar and oil. The Middle East is generally described as the homeland of grapes and the cultivation of this plant began there 6,000–8,000 years ago. Yeast, one of the earliest domesticated microorganisms, occurs naturally on the skins of grapes, leading to the discovery of alcoholic drinks such as wine. The earliest archeological evidence for a dominant position of wine-making in human culture dates from 8,000 years ago in Georgia. The oldest known winery was found in Armenia, dating to around 4000 BC. By the 9th century AD, the city of Shiraz was known to produce some of the finest wines in the Middle East. Thus it has been proposed that Syrah red wine is named after Shiraz, a city in Persia where the grape was used to make Shirazi wine. Ancient Egyptian hieroglyphics record the cultivation of purple grapes, and history attests to the ancient Greeks, Cypriots, Phoenicians, and Romans growing purple grapes both for eating and wine production. The growing of grapes would later spread to other regions in Europe, as well as North Africa, and eventually in North America. In 2005 a team of archaeologists concluded that some Chalcolithic wine jars, which were discovered in Cyprus in the 1930s, were the oldest of their kind in the world, dating back to 3,500 BC. Moreover, Commandaria, a sweet dessert wine from Cyprus, is the oldest manufactured wine in the world, its origins traced as far back as 2000 BC. In North America, native grapes belonging to various species of the genus Vitis proliferate in the wild across the continent, and were a part of the diet of many Native Americans, but were considered by early European colonists to be unsuitable for wine. In the 19th century, Ephraim Bull of Concord, Massachusetts, cultivated seeds from wild Vitis labrusca vines to create the Concord grape which would become an important agricultural crop in the United States. Grapes are a type of fruit that grow in clusters of 15 to 300, and can be crimson, black, dark blue, yellow, green, orange, and pink. "White" grapes are actually green in color, and are evolutionarily derived from the purple grape. Mutations in two regulatory genes of white grapes turn off production of anthocyanins, which are responsible for the color of purple grapes. Anthocyanins and other pigment chemicals of the larger family of polyphenols in purple grapes are responsible for the varying shades of purple in red wines. Grapes are typically an ellipsoid shape resembling a prolate spheroid. Raw grapes are 81% water, 18% carbohydrates, 1% protein, and have negligible fat (table). A 100-gram (3+1⁄2-ounce) reference amount of raw grapes supplies 288 kilojoules (69 kilocalories) of food energy and a moderate amount of vitamin K (14% of the Daily Value), with no other micronutrients in significant content. Most domesticated grapes come from cultivars of Vitis vinifera, a grapevine native to the Mediterranean and Central Asia. Minor amounts of fruit and wine come from American and Asian species such as: According to the Food and Agriculture Organization (FAO), 75,866 square kilometers of the world are dedicated to grapes. Approximately 71% of world grape production is used for wine, 27% as fresh fruit, and 2% as dried fruit. A portion of grape production goes to producing grape juice to be reconstituted for fruits canned "with no added sugar" and "100% natural". The area dedicated to vineyards is increasing by about 2% per year. There are no reliable statistics that break down grape production by variety. It is believed that the most widely planted variety is Sultana, also known as Thompson Seedless, with at least 3,600 km (880,000 acres) dedicated to it. The second most common variety is Airén. Other popular varieties include Cabernet Sauvignon, Sauvignon blanc, Cabernet Franc, Merlot, Grenache, Tempranillo, Riesling, and Chardonnay. Commercially cultivated grapes can usually be classified as either table or wine grapes, based on their intended method of consumption: eaten raw (table grapes) or used to make wine (wine grapes). The sweetness of grapes depends on when they are harvested, as they do not continue to ripen once picked. While almost all of them belong to the same species, Vitis vinifera, table and wine grapes have significant differences, brought about through selective breeding. Table grape cultivars tend to have large, seedless fruit (see below) with relatively thin skin. Wine grapes are smaller, usually seeded, and have relatively thick skins (a desirable characteristic in winemaking, since much of the aroma in wine comes from the skin). Wine grapes also tend to be very sweet: they are harvested at the time when their juice is approximately 24% sugar by weight. By comparison, commercially produced "100% grape juice", made from table grapes, is usually around 15% sugar by weight. Seedless cultivars now make up the overwhelming majority of table grape plantings. Because grapevines are vegetatively propagated by cuttings, the lack of seeds does not present a problem for reproduction. It is an issue for breeders, who must either use a seeded variety as the female parent or rescue embryos early in development using tissue culture techniques. There are several sources of the seedlessness trait, and essentially all commercial cultivators get it from one of three sources: Thompson Seedless, Russian Seedless, and Black Monukka, all being cultivars of Vitis vinifera. There are currently more than a dozen varieties of seedless grapes. Several, such as Einset Seedless, Benjamin Gunnels's Prime seedless grapes, Reliance, and Venus, have been specifically cultivated for hardiness and quality in the relatively cold climates of northeastern United States and southern Ontario. An offset to the improved eating quality of seedlessness is the loss of potential health benefits provided by the enriched phytochemical content of grape seeds (see Health claims, below). Grapes are eaten raw, dried (as raisins, currants and sultanas), or cooked. Also, depending on grape cultivar, grapes are used in winemaking. Grapes can be processed into a multitude of products such as jams, juices, vinegars and oils. Commercially cultivated grapes are classified as either table or wine grapes. These categories are based on their intended method of consumption: grapes that are eaten raw (table grapes), or grapes that are used to make wine (wine grapes). Table grape cultivars normally have large, seedless fruit and thin skins. Wine grapes are smaller (in comparison to table grapes), usually contains seeds, and have thicker skins (a desirable characteristic in making wine. Most of the aroma in wine is from the skin. Wine grapes tend to have a high sugar content. They are harvested at peak sugar levels (approximately 24% sugar by weight.) In comparison, commercially produced "100% grape juice" made from table grapes are normally around 15% sugar by weight. In most of Europe and North America, dried grapes are referred to as "raisins" or the local equivalent. In the UK, three different varieties are recognized, forcing the EU to use the term "dried vine fruit" in official documents. A raisin is any dried grape. While raisin is a French loanword, the word in French refers to the fresh fruit; grappe (from which the English grape is derived) refers to the bunch (as in une grappe de raisins). A raisin in French is called raisin sec ("dry grape"). A currant is a dried Zante Black Corinth grape, the name being a corruption of the French raisin de Corinthe (Corinth grape). The names of the black and red currant, now more usually blackcurrant and redcurrant, two berries unrelated to grapes, are derived from this use. Some other fruits of similar appearance are also so named, for example, Australian currant, native currant, Indian currant. A sultana was originally a raisin made from Sultana grapes of Turkish origin (known as Thompson Seedless in the United States), but the word is now applied to raisins made from either white grapes or red grapes that are bleached to resemble the traditional sultana. Grape juice is obtained from crushing and blending grapes into a liquid. The juice is often sold in stores or fermented and made into wine, brandy, or vinegar. Grape juice that has been pasteurized, removing any naturally occurring yeast, will not ferment if kept sterile, and thus contains no alcohol. In the wine industry, grape juice that contains 7–23% of pulp, skins, stems and seeds is often referred to as "must". In North America, the most common grape juice is purple and made from Concord grapes, while white grape juice is commonly made from Niagara grapes, both of which are varieties of native American grapes, a different species from European wine grapes. In California, Sultana (known there as Thompson Seedless) grapes are sometimes diverted from the raisin or table market to produce white juice. Winemaking from red and white grape flesh and skins produces substantial quantities of organic residues, collectively called pomace (also "marc"), which includes crushed skins, seeds, stems, and leaves generally used as compost. Grape pomace – some 10-30% of the total mass of grapes crushed – contains various phytochemicals, such as unfermented sugars, alcohol, polyphenols, tannins, anthocyanins, and numerous other compounds, some of which are harvested and extracted for commercial applications (a process sometimes called "valorization" of the pomace). Anthocyanins tend to be the main polyphenolics in purple grapes, whereas flavan-3-ols (i.e. catechins) are the more abundant class of polyphenols in white varieties. Total phenolic content is higher in purple varieties due almost entirely to anthocyanin density in purple grape skin compared to absence of anthocyanins in white grape skin. Phenolic content of grape skin varies with cultivar, soil composition, climate, geographic origin, and cultivation practices or exposure to diseases, such as fungal infections. Muscadine grapes contain a relatively high phenolic content among dark grapes. In muscadine skins, ellagic acid, myricetin, quercetin, kaempferol, and trans-resveratrol are major phenolics. The flavonols syringetin, syringetin 3-O-galactoside, laricitrin and laricitrin 3-O-galactoside are also found in purple grape but absent in white grape. Muscadine grape seeds contain about twice the total polyphenol content of skins. Grape seed oil from crushed seeds is used in cosmeceuticals and skincare products. Grape seed oil, including tocopherols (vitamin E) and high contents of phytosterols and polyunsaturated fatty acids such as linoleic acid, oleic acid, and alpha-linolenic acid. Resveratrol, a stilbene compound, is found in widely varying amounts among grape varieties, primarily in their skins and seeds. Muscadine grapes have about one hundred times higher concentration of stilbenes than pulp. Fresh grape skin contains about 50 to 100 micrograms of resveratrol per gram. Comparing diets among Western countries, researchers have discovered that although French people tend to eat higher levels of animal fat, the incidence of heart disease remains low in France. This phenomenon has been termed the French paradox, and is thought to occur from protective benefits of regularly consuming red wine, among other dietary practices. Alcohol consumption in moderation may be cardioprotective by its minor anticoagulant effect and vasodilation. Although adoption of wine consumption is generally not recommended by health authorities, some research indicates moderate consumption, such as one glass of red wine a day for women and two for men, may confer health benefits. Alcohol itself may have protective effects on the cardiovascular system. The consumption of grapes and raisins presents a potential health threat to dogs. Their toxicity to dogs can cause the animal to develop acute kidney failure (the sudden development of kidney failure) with anuria (a lack of urine production) and may be fatal. Christians have traditionally used wine during worship services as a means of remembering the blood of Jesus Christ which was shed for the remission of sins. Christians who oppose the partaking of alcoholic beverages sometimes use grape juice as the "cup" or "wine" in the Lord's Supper. The Catholic Church continues to use wine in the celebration of the Eucharist because it is part of the tradition passed down through the ages starting with Jesus Christ at the Last Supper, where Catholics believe the consecrated bread and wine become the body and blood of Jesus Christ, a dogma known as transubstantiation. Wine is used (not grape juice) both due to its strong Scriptural roots, and also to follow the tradition set by the early Christian Church. The Code of Canon Law of the Catholic Church (1983), Canon 924 says that the wine used must be natural, made from grapes of the vine, and not corrupt.
[ { "paragraph_id": 0, "text": "A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus Vitis. Grapes are a non-climacteric type of fruit, generally occurring in clusters.", "title": "" }, { "paragraph_id": 1, "text": "The cultivation of grapes began perhaps 8,000 years ago, and the fruit has been used as human food over history. Eaten fresh or in dried form (as raisins, currants and sultanas), grapes also hold cultural significance in many parts of the world, particularly for their role in winemaking. Other grape-derived products include various types of jam, juice, vinegar and oil.", "title": "" }, { "paragraph_id": 2, "text": "The Middle East is generally described as the homeland of grapes and the cultivation of this plant began there 6,000–8,000 years ago. Yeast, one of the earliest domesticated microorganisms, occurs naturally on the skins of grapes, leading to the discovery of alcoholic drinks such as wine. The earliest archeological evidence for a dominant position of wine-making in human culture dates from 8,000 years ago in Georgia.", "title": "History" }, { "paragraph_id": 3, "text": "The oldest known winery was found in Armenia, dating to around 4000 BC. By the 9th century AD, the city of Shiraz was known to produce some of the finest wines in the Middle East. Thus it has been proposed that Syrah red wine is named after Shiraz, a city in Persia where the grape was used to make Shirazi wine.", "title": "History" }, { "paragraph_id": 4, "text": "Ancient Egyptian hieroglyphics record the cultivation of purple grapes, and history attests to the ancient Greeks, Cypriots, Phoenicians, and Romans growing purple grapes both for eating and wine production. The growing of grapes would later spread to other regions in Europe, as well as North Africa, and eventually in North America.", "title": "History" }, { "paragraph_id": 5, "text": "In 2005 a team of archaeologists concluded that some Chalcolithic wine jars, which were discovered in Cyprus in the 1930s, were the oldest of their kind in the world, dating back to 3,500 BC. Moreover, Commandaria, a sweet dessert wine from Cyprus, is the oldest manufactured wine in the world, its origins traced as far back as 2000 BC.", "title": "History" }, { "paragraph_id": 6, "text": "In North America, native grapes belonging to various species of the genus Vitis proliferate in the wild across the continent, and were a part of the diet of many Native Americans, but were considered by early European colonists to be unsuitable for wine. In the 19th century, Ephraim Bull of Concord, Massachusetts, cultivated seeds from wild Vitis labrusca vines to create the Concord grape which would become an important agricultural crop in the United States.", "title": "History" }, { "paragraph_id": 7, "text": "Grapes are a type of fruit that grow in clusters of 15 to 300, and can be crimson, black, dark blue, yellow, green, orange, and pink. \"White\" grapes are actually green in color, and are evolutionarily derived from the purple grape. Mutations in two regulatory genes of white grapes turn off production of anthocyanins, which are responsible for the color of purple grapes. Anthocyanins and other pigment chemicals of the larger family of polyphenols in purple grapes are responsible for the varying shades of purple in red wines. Grapes are typically an ellipsoid shape resembling a prolate spheroid.", "title": "Description" }, { "paragraph_id": 8, "text": "Raw grapes are 81% water, 18% carbohydrates, 1% protein, and have negligible fat (table). A 100-gram (3+1⁄2-ounce) reference amount of raw grapes supplies 288 kilojoules (69 kilocalories) of food energy and a moderate amount of vitamin K (14% of the Daily Value), with no other micronutrients in significant content.", "title": "Description" }, { "paragraph_id": 9, "text": "Most domesticated grapes come from cultivars of Vitis vinifera, a grapevine native to the Mediterranean and Central Asia. Minor amounts of fruit and wine come from American and Asian species such as:", "title": "Grapevines" }, { "paragraph_id": 10, "text": "According to the Food and Agriculture Organization (FAO), 75,866 square kilometers of the world are dedicated to grapes. Approximately 71% of world grape production is used for wine, 27% as fresh fruit, and 2% as dried fruit. A portion of grape production goes to producing grape juice to be reconstituted for fruits canned \"with no added sugar\" and \"100% natural\". The area dedicated to vineyards is increasing by about 2% per year.", "title": "Distribution and production" }, { "paragraph_id": 11, "text": "There are no reliable statistics that break down grape production by variety. It is believed that the most widely planted variety is Sultana, also known as Thompson Seedless, with at least 3,600 km (880,000 acres) dedicated to it. The second most common variety is Airén. Other popular varieties include Cabernet Sauvignon, Sauvignon blanc, Cabernet Franc, Merlot, Grenache, Tempranillo, Riesling, and Chardonnay.", "title": "Distribution and production" }, { "paragraph_id": 12, "text": "Commercially cultivated grapes can usually be classified as either table or wine grapes, based on their intended method of consumption: eaten raw (table grapes) or used to make wine (wine grapes). The sweetness of grapes depends on when they are harvested, as they do not continue to ripen once picked. While almost all of them belong to the same species, Vitis vinifera, table and wine grapes have significant differences, brought about through selective breeding. Table grape cultivars tend to have large, seedless fruit (see below) with relatively thin skin. Wine grapes are smaller, usually seeded, and have relatively thick skins (a desirable characteristic in winemaking, since much of the aroma in wine comes from the skin). Wine grapes also tend to be very sweet: they are harvested at the time when their juice is approximately 24% sugar by weight. By comparison, commercially produced \"100% grape juice\", made from table grapes, is usually around 15% sugar by weight.", "title": "Table and wine grapes" }, { "paragraph_id": 13, "text": "Seedless cultivars now make up the overwhelming majority of table grape plantings. Because grapevines are vegetatively propagated by cuttings, the lack of seeds does not present a problem for reproduction. It is an issue for breeders, who must either use a seeded variety as the female parent or rescue embryos early in development using tissue culture techniques.", "title": "Seedless grapes" }, { "paragraph_id": 14, "text": "There are several sources of the seedlessness trait, and essentially all commercial cultivators get it from one of three sources: Thompson Seedless, Russian Seedless, and Black Monukka, all being cultivars of Vitis vinifera. There are currently more than a dozen varieties of seedless grapes. Several, such as Einset Seedless, Benjamin Gunnels's Prime seedless grapes, Reliance, and Venus, have been specifically cultivated for hardiness and quality in the relatively cold climates of northeastern United States and southern Ontario.", "title": "Seedless grapes" }, { "paragraph_id": 15, "text": "An offset to the improved eating quality of seedlessness is the loss of potential health benefits provided by the enriched phytochemical content of grape seeds (see Health claims, below).", "title": "Seedless grapes" }, { "paragraph_id": 16, "text": "Grapes are eaten raw, dried (as raisins, currants and sultanas), or cooked. Also, depending on grape cultivar, grapes are used in winemaking. Grapes can be processed into a multitude of products such as jams, juices, vinegars and oils. Commercially cultivated grapes are classified as either table or wine grapes. These categories are based on their intended method of consumption: grapes that are eaten raw (table grapes), or grapes that are used to make wine (wine grapes). Table grape cultivars normally have large, seedless fruit and thin skins. Wine grapes are smaller (in comparison to table grapes), usually contains seeds, and have thicker skins (a desirable characteristic in making wine. Most of the aroma in wine is from the skin. Wine grapes tend to have a high sugar content. They are harvested at peak sugar levels (approximately 24% sugar by weight.) In comparison, commercially produced \"100% grape juice\" made from table grapes are normally around 15% sugar by weight.", "title": "Uses" }, { "paragraph_id": 17, "text": "In most of Europe and North America, dried grapes are referred to as \"raisins\" or the local equivalent. In the UK, three different varieties are recognized, forcing the EU to use the term \"dried vine fruit\" in official documents.", "title": "Uses" }, { "paragraph_id": 18, "text": "A raisin is any dried grape. While raisin is a French loanword, the word in French refers to the fresh fruit; grappe (from which the English grape is derived) refers to the bunch (as in une grappe de raisins). A raisin in French is called raisin sec (\"dry grape\").", "title": "Uses" }, { "paragraph_id": 19, "text": "A currant is a dried Zante Black Corinth grape, the name being a corruption of the French raisin de Corinthe (Corinth grape). The names of the black and red currant, now more usually blackcurrant and redcurrant, two berries unrelated to grapes, are derived from this use. Some other fruits of similar appearance are also so named, for example, Australian currant, native currant, Indian currant.", "title": "Uses" }, { "paragraph_id": 20, "text": "A sultana was originally a raisin made from Sultana grapes of Turkish origin (known as Thompson Seedless in the United States), but the word is now applied to raisins made from either white grapes or red grapes that are bleached to resemble the traditional sultana.", "title": "Uses" }, { "paragraph_id": 21, "text": "Grape juice is obtained from crushing and blending grapes into a liquid. The juice is often sold in stores or fermented and made into wine, brandy, or vinegar. Grape juice that has been pasteurized, removing any naturally occurring yeast, will not ferment if kept sterile, and thus contains no alcohol. In the wine industry, grape juice that contains 7–23% of pulp, skins, stems and seeds is often referred to as \"must\". In North America, the most common grape juice is purple and made from Concord grapes, while white grape juice is commonly made from Niagara grapes, both of which are varieties of native American grapes, a different species from European wine grapes. In California, Sultana (known there as Thompson Seedless) grapes are sometimes diverted from the raisin or table market to produce white juice.", "title": "Uses" }, { "paragraph_id": 22, "text": "Winemaking from red and white grape flesh and skins produces substantial quantities of organic residues, collectively called pomace (also \"marc\"), which includes crushed skins, seeds, stems, and leaves generally used as compost. Grape pomace – some 10-30% of the total mass of grapes crushed – contains various phytochemicals, such as unfermented sugars, alcohol, polyphenols, tannins, anthocyanins, and numerous other compounds, some of which are harvested and extracted for commercial applications (a process sometimes called \"valorization\" of the pomace).", "title": "Pomace and phytochemicals" }, { "paragraph_id": 23, "text": "Anthocyanins tend to be the main polyphenolics in purple grapes, whereas flavan-3-ols (i.e. catechins) are the more abundant class of polyphenols in white varieties. Total phenolic content is higher in purple varieties due almost entirely to anthocyanin density in purple grape skin compared to absence of anthocyanins in white grape skin. Phenolic content of grape skin varies with cultivar, soil composition, climate, geographic origin, and cultivation practices or exposure to diseases, such as fungal infections.", "title": "Pomace and phytochemicals" }, { "paragraph_id": 24, "text": "Muscadine grapes contain a relatively high phenolic content among dark grapes. In muscadine skins, ellagic acid, myricetin, quercetin, kaempferol, and trans-resveratrol are major phenolics.", "title": "Pomace and phytochemicals" }, { "paragraph_id": 25, "text": "The flavonols syringetin, syringetin 3-O-galactoside, laricitrin and laricitrin 3-O-galactoside are also found in purple grape but absent in white grape.", "title": "Pomace and phytochemicals" }, { "paragraph_id": 26, "text": "Muscadine grape seeds contain about twice the total polyphenol content of skins. Grape seed oil from crushed seeds is used in cosmeceuticals and skincare products. Grape seed oil, including tocopherols (vitamin E) and high contents of phytosterols and polyunsaturated fatty acids such as linoleic acid, oleic acid, and alpha-linolenic acid.", "title": "Pomace and phytochemicals" }, { "paragraph_id": 27, "text": "Resveratrol, a stilbene compound, is found in widely varying amounts among grape varieties, primarily in their skins and seeds. Muscadine grapes have about one hundred times higher concentration of stilbenes than pulp. Fresh grape skin contains about 50 to 100 micrograms of resveratrol per gram.", "title": "Pomace and phytochemicals" }, { "paragraph_id": 28, "text": "Comparing diets among Western countries, researchers have discovered that although French people tend to eat higher levels of animal fat, the incidence of heart disease remains low in France. This phenomenon has been termed the French paradox, and is thought to occur from protective benefits of regularly consuming red wine, among other dietary practices. Alcohol consumption in moderation may be cardioprotective by its minor anticoagulant effect and vasodilation.", "title": "Health claims" }, { "paragraph_id": 29, "text": "Although adoption of wine consumption is generally not recommended by health authorities, some research indicates moderate consumption, such as one glass of red wine a day for women and two for men, may confer health benefits. Alcohol itself may have protective effects on the cardiovascular system.", "title": "Health claims" }, { "paragraph_id": 30, "text": "The consumption of grapes and raisins presents a potential health threat to dogs. Their toxicity to dogs can cause the animal to develop acute kidney failure (the sudden development of kidney failure) with anuria (a lack of urine production) and may be fatal.", "title": "Health claims" }, { "paragraph_id": 31, "text": "Christians have traditionally used wine during worship services as a means of remembering the blood of Jesus Christ which was shed for the remission of sins. Christians who oppose the partaking of alcoholic beverages sometimes use grape juice as the \"cup\" or \"wine\" in the Lord's Supper.", "title": "In religion" }, { "paragraph_id": 32, "text": "The Catholic Church continues to use wine in the celebration of the Eucharist because it is part of the tradition passed down through the ages starting with Jesus Christ at the Last Supper, where Catholics believe the consecrated bread and wine become the body and blood of Jesus Christ, a dogma known as transubstantiation. Wine is used (not grape juice) both due to its strong Scriptural roots, and also to follow the tradition set by the early Christian Church. The Code of Canon Law of the Catholic Church (1983), Canon 924 says that the wine used must be natural, made from grapes of the vine, and not corrupt.", "title": "In religion" } ]
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus Vitis. Grapes are a non-climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, and the fruit has been used as human food over history. Eaten fresh or in dried form, grapes also hold cultural significance in many parts of the world, particularly for their role in winemaking. Other grape-derived products include various types of jam, juice, vinegar and oil.
2001-08-11T01:17:23Z
2023-12-16T16:18:44Z
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https://en.wikipedia.org/wiki/Grape
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Genetic disorder
A genetic disorder is a health problem caused by one or more abnormalities in the genome. It can be caused by a mutation in a single gene (monogenic) or multiple genes (polygenic) or by a chromosomal abnormality. Although polygenic disorders are the most common, the term is mostly used when discussing disorders with a single genetic cause, either in a gene or chromosome. The mutation responsible can occur spontaneously before embryonic development (a de novo mutation), or it can be inherited from two parents who are carriers of a faulty gene (autosomal recessive inheritance) or from a parent with the disorder (autosomal dominant inheritance). When the genetic disorder is inherited from one or both parents, it is also classified as a hereditary disease. Some disorders are caused by a mutation on the X chromosome and have X-linked inheritance. Very few disorders are inherited on the Y chromosome or mitochondrial DNA (due to their size). There are well over 6,000 known genetic disorders, and new genetic disorders are constantly being described in medical literature. More than 600 genetic disorders are treatable. Around 1 in 50 people are affected by a known single-gene disorder, while around 1 in 263 are affected by a chromosomal disorder. Around 65% of people have some kind of health problem as a result of congenital genetic mutations. Due to the significantly large number of genetic disorders, approximately 1 in 21 people are affected by a genetic disorder classified as "rare" (usually defined as affecting less than 1 in 2,000 people). Most genetic disorders are rare in themselves. Genetic disorders are present before birth, and some genetic disorders produce birth defects, but birth defects can also be developmental rather than hereditary. The opposite of a hereditary disease is an acquired disease. Most cancers, although they involve genetic mutations to a small proportion of cells in the body, are acquired diseases. Some cancer syndromes, however, such as BRCA mutations, are hereditary genetic disorders. A single-gene disorder (or monogenic disorder) is the result of a single mutated gene. Single-gene disorders can be passed on to subsequent generations in several ways. Genomic imprinting and uniparental disomy, however, may affect inheritance patterns. The divisions between recessive and dominant types are not "hard and fast", although the divisions between autosomal and X-linked types are (since the latter types are distinguished purely based on the chromosomal location of the gene). For example, the common form of dwarfism, achondroplasia, is typically considered a dominant disorder, but children with two genes for achondroplasia have a severe and usually lethal skeletal disorder, one that achondroplasics could be considered carriers for. Sickle cell anemia is also considered a recessive condition, but heterozygous carriers have increased resistance to malaria in early childhood, which could be described as a related dominant condition. When a couple where one partner or both are affected or carriers of a single-gene disorder wish to have a child, they can do so through in vitro fertilization, which enables preimplantation genetic diagnosis to occur to check whether the embryo has the genetic disorder. Most congenital metabolic disorders known as inborn errors of metabolism result from single-gene defects. Many such single-gene defects can decrease the fitness of affected people and are therefore present in the population in lower frequencies compared to what would be expected based on simple probabilistic calculations. Only one mutated copy of the gene will be necessary for a person to be affected by an autosomal dominant disorder. Each affected person usually has one affected parent. The chance a child will inherit the mutated gene is 50%. Autosomal dominant conditions sometimes have reduced penetrance, which means although only one mutated copy is needed, not all individuals who inherit that mutation go on to develop the disease. Examples of this type of disorder are Huntington's disease, neurofibromatosis type 1, neurofibromatosis type 2, Marfan syndrome, hereditary nonpolyposis colorectal cancer, hereditary multiple exostoses (a highly penetrant autosomal dominant disorder), tuberous sclerosis, Von Willebrand disease, and acute intermittent porphyria. Birth defects are also called congenital anomalies. Two copies of the gene must be mutated for a person to be affected by an autosomal recessive disorder. An affected person usually has unaffected parents who each carry a single copy of the mutated gene and are referred to as genetic carriers. Each parent with a defective gene normally do not have symptoms. Two unaffected people who each carry one copy of the mutated gene have a 25% risk with each pregnancy of having a child affected by the disorder. Examples of this type of disorder are albinism, medium-chain acyl-CoA dehydrogenase deficiency, cystic fibrosis, sickle cell disease, Tay–Sachs disease, Niemann–Pick disease, spinal muscular atrophy, and Roberts syndrome. Certain other phenotypes, such as wet versus dry earwax, are also determined in an autosomal recessive fashion. Some autosomal recessive disorders are common because, in the past, carrying one of the faulty genes led to a slight protection against an infectious disease or toxin such as tuberculosis or malaria. Such disorders include cystic fibrosis, sickle cell disease, phenylketonuria and thalassaemia. X-linked dominant disorders are caused by mutations in genes on the X chromosome. Only a few disorders have this inheritance pattern, with a prime example being X-linked hypophosphatemic rickets. Males and females are both affected in these disorders, with males typically being more severely affected than females. Some X-linked dominant conditions, such as Rett syndrome, incontinentia pigmenti type 2, and Aicardi syndrome, are usually fatal in males either in utero or shortly after birth, and are therefore predominantly seen in females. Exceptions to this finding are extremely rare cases in which boys with Klinefelter syndrome (44+xxy) also inherit an X-linked dominant condition and exhibit symptoms more similar to those of a female in terms of disease severity. The chance of passing on an X-linked dominant disorder differs between men and women. The sons of a man with an X-linked dominant disorder will all be unaffected (since they receive their father's Y chromosome), but his daughters will all inherit the condition. A woman with an X-linked dominant disorder has a 50% chance of having an affected fetus with each pregnancy, although in cases such as incontinentia pigmenti, only female offspring are generally viable. X-linked recessive conditions are also caused by mutations in genes on the X chromosome. Males are much more frequently affected than females, because they only have the one X chromosome necessary for the condition to present. The chance of passing on the disorder differs between men and women. The sons of a man with an X-linked recessive disorder will not be affected (since they receive their father's Y chromosome), but his daughters will be carriers of one copy of the mutated gene. A woman who is a carrier of an X-linked recessive disorder (XX) has a 50% chance of having sons who are affected and a 50% chance of having daughters who are carriers of one copy of the mutated gene. X-linked recessive conditions include the serious diseases hemophilia A, Duchenne muscular dystrophy, and Lesch–Nyhan syndrome, as well as common and less serious conditions such as male pattern baldness and red–green color blindness. X-linked recessive conditions can sometimes manifest in females due to skewed X-inactivation or monosomy X (Turner syndrome). Y-linked disorders are caused by mutations on the Y chromosome. These conditions may only be transmitted from the heterogametic sex (e.g. male humans) to offspring of the same sex. More simply, this means that Y-linked disorders in humans can only be passed from men to their sons; females can never be affected because they do not possess Y-allosomes. Y-linked disorders are exceedingly rare but the most well-known examples typically cause infertility. Reproduction in such conditions is only possible through the circumvention of infertility by medical intervention. This type of inheritance, also known as maternal inheritance, is the rarest and applies to the 13 genes encoded by mitochondrial DNA. Because only egg cells contribute mitochondria to the developing embryo, only mothers (who are affected) can pass on mitochondrial DNA conditions to their children. An example of this type of disorder is Leber's hereditary optic neuropathy. It is important to stress that the vast majority of mitochondrial diseases (particularly when symptoms develop in early life) are actually caused by a nuclear gene defect, as the mitochondria are mostly developed by non-mitochondrial DNA. These diseases most often follow autosomal recessive inheritance. Genetic disorders may also be complex, multifactorial, or polygenic, meaning they are likely associated with the effects of multiple genes in combination with lifestyles and environmental factors. Multifactorial disorders include heart disease and diabetes. Although complex disorders often cluster in families, they do not have a clear-cut pattern of inheritance. This makes it difficult to determine a person's risk of inheriting or passing on these disorders. Complex disorders are also difficult to study and treat because the specific factors that cause most of these disorders have not yet been identified. Studies that aim to identify the cause of complex disorders can use several methodological approaches to determine genotype–phenotype associations. One method, the genotype-first approach, starts by identifying genetic variants within patients and then determining the associated clinical manifestations. This is opposed to the more traditional phenotype-first approach, and may identify causal factors that have previously been obscured by clinical heterogeneity, penetrance, and expressivity. On a pedigree, polygenic diseases do tend to "run in families", but the inheritance does not fit simple patterns as with Mendelian diseases. This does not mean that the genes cannot eventually be located and studied. There is also a strong environmental component to many of them (e.g., blood pressure). Other factors include: A chromosomal disorder is a missing, extra, or irregular portion of chromosomal DNA. It can be from an atypical number of chromosomes or a structural abnormality in one or more chromosomes. An example of these disorders is Trisomy 21 (the most common form of Down syndrome), in which there is an extra copy of chromosome 21 in all cells. Due to the wide range of genetic disorders that are known, diagnosis is widely varied and dependent of the disorder. Most genetic disorders are diagnosed pre-birth, at birth, or during early childhood however some, such as Huntington's disease, can escape detection until the patient is well into adulthood. The basic aspects of a genetic disorder rests on the inheritance of genetic material. With an in depth family history, it is possible to anticipate possible disorders in children which direct medical professionals to specific tests depending on the disorder and allow parents the chance to prepare for potential lifestyle changes, anticipate the possibility of stillbirth, or contemplate termination. Prenatal diagnosis can detect the presence of characteristic abnormalities in fetal development through ultrasound, or detect the presence of characteristic substances via invasive procedures which involve inserting probes or needles into the uterus such as in amniocentesis. Not all genetic disorders directly result in death; however, there are no known cures for genetic disorders. Many genetic disorders affect stages of development, such as Down syndrome, while others result in purely physical symptoms such as muscular dystrophy. Other disorders, such as Huntington's disease, show no signs until adulthood. During the active time of a genetic disorder, patients mostly rely on maintaining or slowing the degradation of quality of life and maintain patient autonomy. This includes physical therapy and pain management. The treatment of genetic disorders is an ongoing battle, with over 1,800 gene therapy clinical trials having been completed, are ongoing, or have been approved worldwide. Despite this, most treatment options revolve around treating the symptoms of the disorders in an attempt to improve patient quality of life. Gene therapy refers to a form of treatment where a healthy gene is introduced to a patient. This should alleviate the defect caused by a faulty gene or slow the progression of the disease. A major obstacle has been the delivery of genes to the appropriate cell, tissue, and organ affected by the disorder. Researchers have investigated how they can introduce a gene into the potentially trillions of cells that carry the defective copy. Finding an answer to this has been a roadblock between understanding the genetic disorder and correcting the genetic disorder. Around 1 in 50 people are affected by a known single-gene disorder, while around 1 in 263 are affected by a chromosomal disorder. Around 65% of people have some kind of health problem as a result of congenital genetic mutations. Due to the significantly large number of genetic disorders, approximately 1 in 21 people are affected by a genetic disorder classified as "rare" (usually defined as affecting less than 1 in 2,000 people). Most genetic disorders are rare in themselves. There are well over 6,000 known genetic disorders, and new genetic disorders are constantly being described in medical literature. The earliest known genetic condition in a hominid was in the fossil species Paranthropus robustus, with over a third of individuals displaying amelogenesis imperfecta.
[ { "paragraph_id": 0, "text": "A genetic disorder is a health problem caused by one or more abnormalities in the genome. It can be caused by a mutation in a single gene (monogenic) or multiple genes (polygenic) or by a chromosomal abnormality. Although polygenic disorders are the most common, the term is mostly used when discussing disorders with a single genetic cause, either in a gene or chromosome. The mutation responsible can occur spontaneously before embryonic development (a de novo mutation), or it can be inherited from two parents who are carriers of a faulty gene (autosomal recessive inheritance) or from a parent with the disorder (autosomal dominant inheritance). When the genetic disorder is inherited from one or both parents, it is also classified as a hereditary disease. Some disorders are caused by a mutation on the X chromosome and have X-linked inheritance. Very few disorders are inherited on the Y chromosome or mitochondrial DNA (due to their size).", "title": "" }, { "paragraph_id": 1, "text": "There are well over 6,000 known genetic disorders, and new genetic disorders are constantly being described in medical literature. More than 600 genetic disorders are treatable. Around 1 in 50 people are affected by a known single-gene disorder, while around 1 in 263 are affected by a chromosomal disorder. Around 65% of people have some kind of health problem as a result of congenital genetic mutations. Due to the significantly large number of genetic disorders, approximately 1 in 21 people are affected by a genetic disorder classified as \"rare\" (usually defined as affecting less than 1 in 2,000 people). Most genetic disorders are rare in themselves.", "title": "" }, { "paragraph_id": 2, "text": "Genetic disorders are present before birth, and some genetic disorders produce birth defects, but birth defects can also be developmental rather than hereditary. The opposite of a hereditary disease is an acquired disease. Most cancers, although they involve genetic mutations to a small proportion of cells in the body, are acquired diseases. Some cancer syndromes, however, such as BRCA mutations, are hereditary genetic disorders.", "title": "" }, { "paragraph_id": 3, "text": "A single-gene disorder (or monogenic disorder) is the result of a single mutated gene. Single-gene disorders can be passed on to subsequent generations in several ways. Genomic imprinting and uniparental disomy, however, may affect inheritance patterns. The divisions between recessive and dominant types are not \"hard and fast\", although the divisions between autosomal and X-linked types are (since the latter types are distinguished purely based on the chromosomal location of the gene). For example, the common form of dwarfism, achondroplasia, is typically considered a dominant disorder, but children with two genes for achondroplasia have a severe and usually lethal skeletal disorder, one that achondroplasics could be considered carriers for. Sickle cell anemia is also considered a recessive condition, but heterozygous carriers have increased resistance to malaria in early childhood, which could be described as a related dominant condition. When a couple where one partner or both are affected or carriers of a single-gene disorder wish to have a child, they can do so through in vitro fertilization, which enables preimplantation genetic diagnosis to occur to check whether the embryo has the genetic disorder.", "title": "Single-gene" }, { "paragraph_id": 4, "text": "Most congenital metabolic disorders known as inborn errors of metabolism result from single-gene defects. Many such single-gene defects can decrease the fitness of affected people and are therefore present in the population in lower frequencies compared to what would be expected based on simple probabilistic calculations.", "title": "Single-gene" }, { "paragraph_id": 5, "text": "Only one mutated copy of the gene will be necessary for a person to be affected by an autosomal dominant disorder. Each affected person usually has one affected parent. The chance a child will inherit the mutated gene is 50%. Autosomal dominant conditions sometimes have reduced penetrance, which means although only one mutated copy is needed, not all individuals who inherit that mutation go on to develop the disease. Examples of this type of disorder are Huntington's disease, neurofibromatosis type 1, neurofibromatosis type 2, Marfan syndrome, hereditary nonpolyposis colorectal cancer, hereditary multiple exostoses (a highly penetrant autosomal dominant disorder), tuberous sclerosis, Von Willebrand disease, and acute intermittent porphyria. Birth defects are also called congenital anomalies.", "title": "Single-gene" }, { "paragraph_id": 6, "text": "Two copies of the gene must be mutated for a person to be affected by an autosomal recessive disorder. An affected person usually has unaffected parents who each carry a single copy of the mutated gene and are referred to as genetic carriers. Each parent with a defective gene normally do not have symptoms. Two unaffected people who each carry one copy of the mutated gene have a 25% risk with each pregnancy of having a child affected by the disorder. Examples of this type of disorder are albinism, medium-chain acyl-CoA dehydrogenase deficiency, cystic fibrosis, sickle cell disease, Tay–Sachs disease, Niemann–Pick disease, spinal muscular atrophy, and Roberts syndrome. Certain other phenotypes, such as wet versus dry earwax, are also determined in an autosomal recessive fashion. Some autosomal recessive disorders are common because, in the past, carrying one of the faulty genes led to a slight protection against an infectious disease or toxin such as tuberculosis or malaria. Such disorders include cystic fibrosis, sickle cell disease, phenylketonuria and thalassaemia.", "title": "Single-gene" }, { "paragraph_id": 7, "text": "X-linked dominant disorders are caused by mutations in genes on the X chromosome. Only a few disorders have this inheritance pattern, with a prime example being X-linked hypophosphatemic rickets. Males and females are both affected in these disorders, with males typically being more severely affected than females. Some X-linked dominant conditions, such as Rett syndrome, incontinentia pigmenti type 2, and Aicardi syndrome, are usually fatal in males either in utero or shortly after birth, and are therefore predominantly seen in females. Exceptions to this finding are extremely rare cases in which boys with Klinefelter syndrome (44+xxy) also inherit an X-linked dominant condition and exhibit symptoms more similar to those of a female in terms of disease severity. The chance of passing on an X-linked dominant disorder differs between men and women. The sons of a man with an X-linked dominant disorder will all be unaffected (since they receive their father's Y chromosome), but his daughters will all inherit the condition. A woman with an X-linked dominant disorder has a 50% chance of having an affected fetus with each pregnancy, although in cases such as incontinentia pigmenti, only female offspring are generally viable.", "title": "Single-gene" }, { "paragraph_id": 8, "text": "X-linked recessive conditions are also caused by mutations in genes on the X chromosome. Males are much more frequently affected than females, because they only have the one X chromosome necessary for the condition to present. The chance of passing on the disorder differs between men and women. The sons of a man with an X-linked recessive disorder will not be affected (since they receive their father's Y chromosome), but his daughters will be carriers of one copy of the mutated gene. A woman who is a carrier of an X-linked recessive disorder (XX) has a 50% chance of having sons who are affected and a 50% chance of having daughters who are carriers of one copy of the mutated gene. X-linked recessive conditions include the serious diseases hemophilia A, Duchenne muscular dystrophy, and Lesch–Nyhan syndrome, as well as common and less serious conditions such as male pattern baldness and red–green color blindness. X-linked recessive conditions can sometimes manifest in females due to skewed X-inactivation or monosomy X (Turner syndrome).", "title": "Single-gene" }, { "paragraph_id": 9, "text": "Y-linked disorders are caused by mutations on the Y chromosome. These conditions may only be transmitted from the heterogametic sex (e.g. male humans) to offspring of the same sex. More simply, this means that Y-linked disorders in humans can only be passed from men to their sons; females can never be affected because they do not possess Y-allosomes.", "title": "Single-gene" }, { "paragraph_id": 10, "text": "Y-linked disorders are exceedingly rare but the most well-known examples typically cause infertility. Reproduction in such conditions is only possible through the circumvention of infertility by medical intervention.", "title": "Single-gene" }, { "paragraph_id": 11, "text": "This type of inheritance, also known as maternal inheritance, is the rarest and applies to the 13 genes encoded by mitochondrial DNA. Because only egg cells contribute mitochondria to the developing embryo, only mothers (who are affected) can pass on mitochondrial DNA conditions to their children. An example of this type of disorder is Leber's hereditary optic neuropathy.", "title": "Single-gene" }, { "paragraph_id": 12, "text": "It is important to stress that the vast majority of mitochondrial diseases (particularly when symptoms develop in early life) are actually caused by a nuclear gene defect, as the mitochondria are mostly developed by non-mitochondrial DNA. These diseases most often follow autosomal recessive inheritance.", "title": "Single-gene" }, { "paragraph_id": 13, "text": "Genetic disorders may also be complex, multifactorial, or polygenic, meaning they are likely associated with the effects of multiple genes in combination with lifestyles and environmental factors. Multifactorial disorders include heart disease and diabetes. Although complex disorders often cluster in families, they do not have a clear-cut pattern of inheritance. This makes it difficult to determine a person's risk of inheriting or passing on these disorders. Complex disorders are also difficult to study and treat because the specific factors that cause most of these disorders have not yet been identified. Studies that aim to identify the cause of complex disorders can use several methodological approaches to determine genotype–phenotype associations. One method, the genotype-first approach, starts by identifying genetic variants within patients and then determining the associated clinical manifestations. This is opposed to the more traditional phenotype-first approach, and may identify causal factors that have previously been obscured by clinical heterogeneity, penetrance, and expressivity.", "title": "Multifactorial disorder" }, { "paragraph_id": 14, "text": "On a pedigree, polygenic diseases do tend to \"run in families\", but the inheritance does not fit simple patterns as with Mendelian diseases. This does not mean that the genes cannot eventually be located and studied. There is also a strong environmental component to many of them (e.g., blood pressure). Other factors include:", "title": "Multifactorial disorder" }, { "paragraph_id": 15, "text": "A chromosomal disorder is a missing, extra, or irregular portion of chromosomal DNA. It can be from an atypical number of chromosomes or a structural abnormality in one or more chromosomes. An example of these disorders is Trisomy 21 (the most common form of Down syndrome), in which there is an extra copy of chromosome 21 in all cells.", "title": "Chromosomal disorder" }, { "paragraph_id": 16, "text": "Due to the wide range of genetic disorders that are known, diagnosis is widely varied and dependent of the disorder. Most genetic disorders are diagnosed pre-birth, at birth, or during early childhood however some, such as Huntington's disease, can escape detection until the patient is well into adulthood.", "title": "Diagnosis" }, { "paragraph_id": 17, "text": "The basic aspects of a genetic disorder rests on the inheritance of genetic material. With an in depth family history, it is possible to anticipate possible disorders in children which direct medical professionals to specific tests depending on the disorder and allow parents the chance to prepare for potential lifestyle changes, anticipate the possibility of stillbirth, or contemplate termination. Prenatal diagnosis can detect the presence of characteristic abnormalities in fetal development through ultrasound, or detect the presence of characteristic substances via invasive procedures which involve inserting probes or needles into the uterus such as in amniocentesis.", "title": "Diagnosis" }, { "paragraph_id": 18, "text": "Not all genetic disorders directly result in death; however, there are no known cures for genetic disorders. Many genetic disorders affect stages of development, such as Down syndrome, while others result in purely physical symptoms such as muscular dystrophy. Other disorders, such as Huntington's disease, show no signs until adulthood. During the active time of a genetic disorder, patients mostly rely on maintaining or slowing the degradation of quality of life and maintain patient autonomy. This includes physical therapy and pain management.", "title": "Prognosis" }, { "paragraph_id": 19, "text": "The treatment of genetic disorders is an ongoing battle, with over 1,800 gene therapy clinical trials having been completed, are ongoing, or have been approved worldwide. Despite this, most treatment options revolve around treating the symptoms of the disorders in an attempt to improve patient quality of life.", "title": "Treatment" }, { "paragraph_id": 20, "text": "Gene therapy refers to a form of treatment where a healthy gene is introduced to a patient. This should alleviate the defect caused by a faulty gene or slow the progression of the disease. A major obstacle has been the delivery of genes to the appropriate cell, tissue, and organ affected by the disorder. Researchers have investigated how they can introduce a gene into the potentially trillions of cells that carry the defective copy. Finding an answer to this has been a roadblock between understanding the genetic disorder and correcting the genetic disorder.", "title": "Treatment" }, { "paragraph_id": 21, "text": "Around 1 in 50 people are affected by a known single-gene disorder, while around 1 in 263 are affected by a chromosomal disorder. Around 65% of people have some kind of health problem as a result of congenital genetic mutations. Due to the significantly large number of genetic disorders, approximately 1 in 21 people are affected by a genetic disorder classified as \"rare\" (usually defined as affecting less than 1 in 2,000 people). Most genetic disorders are rare in themselves. There are well over 6,000 known genetic disorders, and new genetic disorders are constantly being described in medical literature.", "title": "Epidemiology" }, { "paragraph_id": 22, "text": "The earliest known genetic condition in a hominid was in the fossil species Paranthropus robustus, with over a third of individuals displaying amelogenesis imperfecta.", "title": "History" } ]
A genetic disorder is a health problem caused by one or more abnormalities in the genome. It can be caused by a mutation in a single gene (monogenic) or multiple genes (polygenic) or by a chromosomal abnormality. Although polygenic disorders are the most common, the term is mostly used when discussing disorders with a single genetic cause, either in a gene or chromosome. The mutation responsible can occur spontaneously before embryonic development, or it can be inherited from two parents who are carriers of a faulty gene or from a parent with the disorder. When the genetic disorder is inherited from one or both parents, it is also classified as a hereditary disease. Some disorders are caused by a mutation on the X chromosome and have X-linked inheritance. Very few disorders are inherited on the Y chromosome or mitochondrial DNA. There are well over 6,000 known genetic disorders, and new genetic disorders are constantly being described in medical literature. More than 600 genetic disorders are treatable. Around 1 in 50 people are affected by a known single-gene disorder, while around 1 in 263 are affected by a chromosomal disorder. Around 65% of people have some kind of health problem as a result of congenital genetic mutations. Due to the significantly large number of genetic disorders, approximately 1 in 21 people are affected by a genetic disorder classified as "rare". Most genetic disorders are rare in themselves. Genetic disorders are present before birth, and some genetic disorders produce birth defects, but birth defects can also be developmental rather than hereditary. The opposite of a hereditary disease is an acquired disease. Most cancers, although they involve genetic mutations to a small proportion of cells in the body, are acquired diseases. Some cancer syndromes, however, such as BRCA mutations, are hereditary genetic disorders.
2002-02-25T15:51:15Z
2023-12-17T16:57:57Z
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https://en.wikipedia.org/wiki/Genetic_disorder
12,439
Guanine
Guanine (/ˈɡwɑːnɪn/ ) (symbol G or Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA). In DNA, guanine is paired with cytosine. The guanine nucleoside is called guanosine. With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. This unsaturated arrangement means the bicyclic molecule is planar. Guanine, along with adenine and cytosine, is present in both DNA and RNA, whereas thymine is usually seen only in DNA, and uracil only in RNA. Guanine has two tautomeric forms, the major keto form (see figures) and rare enol form. It binds to cytosine through three hydrogen bonds. In cytosine, the amino group acts as the hydrogen bond donor and the C-2 carbonyl and the N-3 amine as the hydrogen-bond acceptors. Guanine has the C-6 carbonyl group that acts as the hydrogen bond acceptor, while a group at N-1 and the amino group at C-2 act as the hydrogen bond donors. Guanine can be hydrolyzed with strong acid to glycine, ammonia, carbon dioxide, and carbon monoxide. First, guanine gets deaminated to become xanthine. Guanine oxidizes more readily than adenine, the other purine-derivative base in DNA. Its high melting point of 350 °C reflects the intermolecular hydrogen bonding between the oxo and amino groups in the molecules in the crystal. Because of this intermolecular bonding, guanine is relatively insoluble in water, but it is soluble in dilute acids and bases. The first isolation of guanine was reported in 1844 by the German chemist Julius Bodo Unger [de] (1819–1885), who obtained it as a mineral formed from the excreta of sea birds, which is known as guano and which was used as a source of fertilizer; guanine was named in 1846. Between 1882 and 1906, Emil Fischer determined the structure and also showed that uric acid can be converted to guanine. Trace amounts of guanine form by the polymerization of ammonium cyanide (NH4CN). Two experiments conducted by Levy et al. showed that heating 10 mol·L NH4CN at 80 °C for 24 hours gave a yield of 0.0007%, while using 0.1 mol·L NH4CN frozen at −20 °C for 25 years gave a 0.0035% yield. These results indicate guanine could arise in frozen regions of the primitive earth. In 1984, Yuasa reported a 0.00017% yield of guanine after the electrical discharge of NH3, CH4, C2H6, and 50 mL of water, followed by a subsequent acid hydrolysis. However, it is unknown whether the presence of guanine was not simply a resultant contaminant of the reaction. A Fischer–Tropsch synthesis can also be used to form guanine, along with adenine, uracil, and thymine. Heating an equimolar gas mixture of CO, H2, and NH3 to 700 °C for 15 to 24 minutes, followed by quick cooling and then sustained reheating to 100 to 200 °C for 16 to 44 hours with an alumina catalyst, yielded guanine and uracil: Another possible abiotic route was explored by quenching a 90% N2–10%CO–H2O gas mixture high-temperature plasma. Traube's synthesis involves heating 2,4,5-triamino-1,6-dihydro-6-oxypyrimidine (as the sulfate) with formic acid for several hours. Guanine is not synthesized de novo, instead it's split from the more complex molecule, guanosine, by the enzyme guanosine phosphorylase: Guanine can be synthesized de novo, with the rate-limiting enzyme of inosine monophosphate dehydrogenase. The word guanine derives from the Spanish loanword guano ("bird/bat droppings"), which itself is from the Quechua word wanu, meaning "dung". As the Oxford English Dictionary notes, guanine is "A white amorphous substance obtained abundantly from guano, forming a constituent of the excrement of birds". In 1656 in Paris, a Mr. Jaquin extracted from the scales of the fish Alburnus alburnus so-called "pearl essence", which is crystalline guanine. In the cosmetics industry, crystalline guanine is used as an additive to various products (e.g., shampoos), where it provides a pearly iridescent effect. It is also used in metallic paints and simulated pearls and plastics. It provides shimmering luster to eye shadow and nail polish. Facial treatments using the droppings, or guano, from Japanese nightingales have been used in Japan and elsewhere, because the guanine in the droppings makes the skin look paler. Guanine crystals are rhombic platelets composed of multiple transparent layers, but they have a high index of refraction that partially reflects and transmits light from layer to layer, thus producing a pearly luster. It can be applied by spray, painting, or dipping. It may irritate the eyes. Its alternatives are mica, faux pearl (from ground shells), and aluminium and bronze particles. Guanine has a very wide variety of biological uses that include a range of functions ranging in both complexity and versatility. These include camouflage, display, and vision among other purposes. Spiders, scorpions, and some amphibians convert ammonia, as a product of protein metabolism in the cells, to guanine, as it can be excreted with minimal water loss. Guanine is also found in specialized skin cells of fish called iridocytes (e.g., the sturgeon), as well as being present in the reflective deposits of the eyes of deep-sea fish and some reptiles, such as crocodiles and chameleons. On 8 August 2011, a report, based on NASA studies with meteorites found on Earth, was published suggesting building blocks of DNA and RNA (guanine, adenine and related organic molecules) may have been formed extra-terrestrially in outer space.
[ { "paragraph_id": 0, "text": "Guanine (/ˈɡwɑːnɪn/ ) (symbol G or Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA). In DNA, guanine is paired with cytosine. The guanine nucleoside is called guanosine.", "title": "" }, { "paragraph_id": 1, "text": "With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. This unsaturated arrangement means the bicyclic molecule is planar.", "title": "" }, { "paragraph_id": 2, "text": "Guanine, along with adenine and cytosine, is present in both DNA and RNA, whereas thymine is usually seen only in DNA, and uracil only in RNA. Guanine has two tautomeric forms, the major keto form (see figures) and rare enol form.", "title": "Properties" }, { "paragraph_id": 3, "text": "It binds to cytosine through three hydrogen bonds. In cytosine, the amino group acts as the hydrogen bond donor and the C-2 carbonyl and the N-3 amine as the hydrogen-bond acceptors. Guanine has the C-6 carbonyl group that acts as the hydrogen bond acceptor, while a group at N-1 and the amino group at C-2 act as the hydrogen bond donors.", "title": "Properties" }, { "paragraph_id": 4, "text": "Guanine can be hydrolyzed with strong acid to glycine, ammonia, carbon dioxide, and carbon monoxide. First, guanine gets deaminated to become xanthine. Guanine oxidizes more readily than adenine, the other purine-derivative base in DNA. Its high melting point of 350 °C reflects the intermolecular hydrogen bonding between the oxo and amino groups in the molecules in the crystal. Because of this intermolecular bonding, guanine is relatively insoluble in water, but it is soluble in dilute acids and bases.", "title": "Properties" }, { "paragraph_id": 5, "text": "The first isolation of guanine was reported in 1844 by the German chemist Julius Bodo Unger [de] (1819–1885), who obtained it as a mineral formed from the excreta of sea birds, which is known as guano and which was used as a source of fertilizer; guanine was named in 1846. Between 1882 and 1906, Emil Fischer determined the structure and also showed that uric acid can be converted to guanine.", "title": "History" }, { "paragraph_id": 6, "text": "Trace amounts of guanine form by the polymerization of ammonium cyanide (NH4CN). Two experiments conducted by Levy et al. showed that heating 10 mol·L NH4CN at 80 °C for 24 hours gave a yield of 0.0007%, while using 0.1 mol·L NH4CN frozen at −20 °C for 25 years gave a 0.0035% yield. These results indicate guanine could arise in frozen regions of the primitive earth. In 1984, Yuasa reported a 0.00017% yield of guanine after the electrical discharge of NH3, CH4, C2H6, and 50 mL of water, followed by a subsequent acid hydrolysis. However, it is unknown whether the presence of guanine was not simply a resultant contaminant of the reaction.", "title": "Synthesis" }, { "paragraph_id": 7, "text": "A Fischer–Tropsch synthesis can also be used to form guanine, along with adenine, uracil, and thymine. Heating an equimolar gas mixture of CO, H2, and NH3 to 700 °C for 15 to 24 minutes, followed by quick cooling and then sustained reheating to 100 to 200 °C for 16 to 44 hours with an alumina catalyst, yielded guanine and uracil:", "title": "Synthesis" }, { "paragraph_id": 8, "text": "Another possible abiotic route was explored by quenching a 90% N2–10%CO–H2O gas mixture high-temperature plasma.", "title": "Synthesis" }, { "paragraph_id": 9, "text": "Traube's synthesis involves heating 2,4,5-triamino-1,6-dihydro-6-oxypyrimidine (as the sulfate) with formic acid for several hours.", "title": "Synthesis" }, { "paragraph_id": 10, "text": "Guanine is not synthesized de novo, instead it's split from the more complex molecule, guanosine, by the enzyme guanosine phosphorylase:", "title": "Biosynthesis" }, { "paragraph_id": 11, "text": "Guanine can be synthesized de novo, with the rate-limiting enzyme of inosine monophosphate dehydrogenase.", "title": "Biosynthesis" }, { "paragraph_id": 12, "text": "The word guanine derives from the Spanish loanword guano (\"bird/bat droppings\"), which itself is from the Quechua word wanu, meaning \"dung\". As the Oxford English Dictionary notes, guanine is \"A white amorphous substance obtained abundantly from guano, forming a constituent of the excrement of birds\".", "title": "Other occurrences and biological uses" }, { "paragraph_id": 13, "text": "In 1656 in Paris, a Mr. Jaquin extracted from the scales of the fish Alburnus alburnus so-called \"pearl essence\", which is crystalline guanine. In the cosmetics industry, crystalline guanine is used as an additive to various products (e.g., shampoos), where it provides a pearly iridescent effect. It is also used in metallic paints and simulated pearls and plastics. It provides shimmering luster to eye shadow and nail polish. Facial treatments using the droppings, or guano, from Japanese nightingales have been used in Japan and elsewhere, because the guanine in the droppings makes the skin look paler. Guanine crystals are rhombic platelets composed of multiple transparent layers, but they have a high index of refraction that partially reflects and transmits light from layer to layer, thus producing a pearly luster. It can be applied by spray, painting, or dipping. It may irritate the eyes. Its alternatives are mica, faux pearl (from ground shells), and aluminium and bronze particles.", "title": "Other occurrences and biological uses" }, { "paragraph_id": 14, "text": "Guanine has a very wide variety of biological uses that include a range of functions ranging in both complexity and versatility. These include camouflage, display, and vision among other purposes.", "title": "Other occurrences and biological uses" }, { "paragraph_id": 15, "text": "Spiders, scorpions, and some amphibians convert ammonia, as a product of protein metabolism in the cells, to guanine, as it can be excreted with minimal water loss.", "title": "Other occurrences and biological uses" }, { "paragraph_id": 16, "text": "Guanine is also found in specialized skin cells of fish called iridocytes (e.g., the sturgeon), as well as being present in the reflective deposits of the eyes of deep-sea fish and some reptiles, such as crocodiles and chameleons.", "title": "Other occurrences and biological uses" }, { "paragraph_id": 17, "text": "On 8 August 2011, a report, based on NASA studies with meteorites found on Earth, was published suggesting building blocks of DNA and RNA (guanine, adenine and related organic molecules) may have been formed extra-terrestrially in outer space.", "title": "Other occurrences and biological uses" } ]
Guanine (symbol G or Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA). In DNA, guanine is paired with cytosine. The guanine nucleoside is called guanosine. With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. This unsaturated arrangement means the bicyclic molecule is planar.
2001-08-15T08:20:42Z
2023-09-17T03:42:22Z
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https://en.wikipedia.org/wiki/Guanine
12,441
Genocide
Genocide is the intentional destruction of a people in whole or in part. In 1948, the United Nations Genocide Convention defined genocide as any of five "acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group". These five acts were: killing members of the group, causing them serious bodily or mental harm, imposing living conditions intended to destroy the group, preventing births, and forcibly transferring children out of the group. Victims are targeted because of their real or perceived membership of a group, not randomly. The Political Instability Task Force estimated that 43 genocides occurred between 1956 and 2016, resulting in about 50 million deaths. The UNHCR estimated that a further 50 million had been displaced by such episodes of violence up to 2008. Genocide, especially large-scale genocide, is widely considered to signify the epitome of human evil. As a label, it is contentious because it is moralizing, and has been used as a type of moral category since the late 1990s. Polish lawyer Raphael Lemkin coined the term genocide in his 1944 book "Axis Rule in Occupied Europe", combining the Greek word γένος (genos, "race, people") with the Latin suffix -caedo ("act of killing"). In "Axis rule", Lemkin documents his research of Nazi occupation policies in Europe, and records a case study of the occupation of Poland. Lemkin asserted that Nazi atrocities against Poles consisted of five policies which exposed their "intent to destroy" the Polish nation. These included i) mass-killings of Poles ii) inflicting "serious bodily or mental harm to members of the group" iii) planned deterioration of living conditions "calculated to bring about their destruction" iv) implementation of various "measures intended to prevent births within the group" such as promotion of abortions, burdening pregnant women, etc. v) forced transfer of Polish children to German families. Each of these five markers, according to Lemkin, revealed the Nazi plan to eliminate the Polish identity with certainty. These five criteria were adopted by the 1948 Genocide Convention as its proof for the concept of genocidal intent. Before the term was coined, there had been various ways of describing such events. Some languages already had words for such killings, including German (Völkermord, lit. 'murder of a people') and Polish (ludobójstwo, lit. 'killing of a people or nation'). In 1941, when describing the "methodical, merciless butchery" of "scores of thousands" of Russians by Nazi troops during the German invasion of the Soviet Union, Winston Churchill spoke of "a crime without a name". Lemkin's 1944 book Axis Rule in Occupied Europe describes the implementation of Nazi policies in occupied Europe and mentions earlier mass killings. After reading about the 1921 assassination of Talat Pasha, the main architect of the Armenian genocide, by Armenian Soghomon Tehlirian, Lemkin asked his professor why there was no law under which Talat could be charged. He later explained that "as a lawyer, I thought that a crime should not be punished by the victims, but should be punished by a court." Lemkin defined genocide as follows: New conceptions require new terms. By "genocide" we mean the destruction of a nation or of an ethnic group. This new word, coined by the author to denote an old practice in its modern development, is made from the ancient Greek word genos (race, tribe) and the Latin cide (killing), thus corresponding in its formation to such words as tyrannicide, homicide, infanticide, etc. Generally speaking, genocide does not necessarily mean the immediate destruction of a nation, except when accomplished by mass killings of all members of a nation. It is intended rather to signify a coordinated plan of different actions aiming at the destruction of essential foundations of the life of national groups, with the aim of annihilating the groups themselves. The objectives of such a plan would be disintegration of the political and social institutions, of culture, language, national feelings, religion, and the economic existence of national groups, and the destruction of the personal security, liberty, health, dignity, and even the lives of the individuals belonging to such groups. Genocide is directed against the national group as an entity, and the actions involved are directed against individuals, not in their individual capacity, but as members of the national group. The preamble to the 1948 Genocide Convention (CPPCG) notes that instances of genocide have taken place throughout history; it was not until Lemkin coined the term and the prosecution of perpetrators of the Holocaust at the Nuremberg Trials that the United Nations defined the crime of genocide under international law in the Genocide Convention. It was several years before the term was widely adopted by the international community. When the Nuremberg trials revealed the inadequacy of phrases like "Germanization", "crimes against humanity" and "mass murder", scholars of international law reached agreement that Lemkin's work provided a conceptual framework for Nazi crimes. A 1946 headline in The New York Times announced that "Genocide Is the New Name for the Crime Fastened on the Nazi Leaders"; the word was used in indictments at the Nuremberg trials, held from 1945, but solely as a descriptive term, not yet as a formal legal term. The so-called Polish Genocide Trials of Arthur Greiser and Amon Leopold Goth in 1946 were the first trials in which judgments included the term. The Genocide Convention establishes five prohibited acts that, when committed with the requisite intent, amount to genocide. Although massacre-style killings are the most commonly identified and punished as genocide, the range of violence that is contemplated by the law is significantly broader. While mass killing is not necessary for genocide to have been committed, it has been present in almost all recognized genocides. A near-uniform pattern has emerged throughout history in which men and adolescent boys are singled out for murder in the early stages, such as in the genocide of the Yazidis by Daesh, the Ottoman Turks' attack on the Armenians, and the Burmese security forces' attacks on the Rohingya. Men and boys are typically subject to "fast" killings, such as by gunshot. Women and girls are more likely to die slower deaths by slashing, burning, or as a result of sexual violence. The jurisprudence of the International Criminal Tribunal for Rwanda (ICTR), among others, shows that both the initial executions and those that quickly follow other acts of extreme violence, such as rape and torture, are recognized as falling under the first prohibited act. A less settled discussion is whether deaths that are further removed from the initial acts of violence can be addressed under this provision of the Genocide Convention. Legal scholars have posited, for example, that deaths resulting from other genocidal acts including causing serious bodily or mental harm or the successful deliberate infliction of conditions of life calculated to bring about physical destruction should be considered genocidal killings. This second prohibited act can encompass a wide range of non-fatal genocidal acts. The ICTR and International Criminal Tribunal for the former Yugoslavia (ICTY) have held that rape and sexual violence may constitute the second prohibited act of genocide by causing both physical and mental harm. In its landmark Akayesu decision, the ICTR held that rapes and sexual violence resulted in "physical and psychological destruction". Sexual violence is a hallmark of genocidal violence, with most genocidal campaigns explicitly or implicitly sanctioning it. It is estimated that 250,000 to 500,000 women were raped in the three months of the Rwandan genocide, many of whom were subjected to multiple rapes or gang rape. In Darfur, a systemic campaign of rape and often sexual mutilation was carried out and in Burma public mass rapes and gang rapes were inflicted on the Rohingya by Burmese security forces. Sexual slavery was documented in the Armenian genocide by the Ottoman Turks and Daesh's genocide of the Yazidi. Torture and other cruel, inhuman, or degrading treatment or punishment, when committed with the requisite intent, are also genocide by causing serious bodily or mental harm to members of the group. The ICTY found that both experiencing a failed execution and watching the murder of one's family members may constitute torture. The Syrian Commission of Inquiry (COI) also found that enslavement, removal of one's children into indoctrination or sexual slavery, and acts of physical and sexual violence rise to the level of torture, as well. While it was subject to some debate, the ICTY and, later, the Syrian COI held that under some circumstances deportation and forcible transfer may also cause serious bodily or mental harm. The third prohibited act is distinguished from the genocidal act of killing because the deaths are not immediate (or may not even come to pass), but rather create circumstances that do not support prolonged life. Due to the longer period of time before the actual destruction would be achieved, the ICTR held that courts must consider the duration of time the conditions are imposed as an element of the act. In the 19th century the United States federal government supported the extermination of bison, which Native Americans in the Great Plains relied on as a source of food. This was done for various reasons, primarily to pressure them onto reservations during times of conflict. Some genocide experts describe this as an example of genocide that involves removing the means of survival. The ICTR provided guidance into what constitutes a violation of the third act. In Akayesu, it identified "subjecting a group of people to a subsistence diet, systematic expulsion from homes and the reduction of essential medical services below minimum requirement" as rising to genocide. In Kayishema and Ruzindana, it extended the list to include: "lack of proper housing, clothing, hygiene and medical care or excessive work or physical exertion" among the conditions. It further noted that, in addition to deprivation of necessary resources, rape could also fit within this prohibited act. The fourth prohibited act is aimed at preventing the protected group from regenerating through reproduction. It encompasses acts affecting reproduction and intimate relationships, such as involuntary sterilization, forced abortion, the prohibition of marriage, and long-term separation of men and women intended to prevent procreation. Rape has been found to violate the fourth prohibited act on two bases: where the rape was committed with the intent to impregnate a woman and thereby force her to carry a child of another group (in societies where group identity is determined by patrilineal identity) and where the person raped subsequently refuses to procreate as a result of the trauma. Accordingly, it can take into account both physical and mental measures imposed by the perpetrators. The final prohibited act is the only prohibited act that does not lead to physical or biological destruction, but rather to destruction of the group as a cultural and social unit. It occurs when children of the protected group are transferred to the perpetrator group. Boys are typically taken into the group by changing their names to those common of the perpetrator group, converting their religion, and using them for labor or as soldiers. Girls who are transferred are not generally converted to the perpetrator group, but instead treated as chattel, as played out in both the Yazidi and Armenian genocides. Before genocide was made a crime against national law, it was considered a sovereign right. When Lemkin asked about a way to punish the perpetrators of the Armenian genocide, a law professor told him: "Consider the case of a farmer who owns a flock of chickens. He kills them and this is his business. If you interfere, you are trespassing." As late as 1959, many world leaders still "believed states had a right to commit genocide against people within their borders", according to political scientist Douglas Irvin-Erickson. After the Holocaust, which had been perpetrated by Nazi Germany prior to and during World War II, Lemkin successfully campaigned for the universal acceptance of international laws defining and forbidding genocides. In 1946, the first session of the United Nations General Assembly adopted a resolution that affirmed genocide was a crime under international law and enumerated examples of such events (but did not provide a full legal definition of the crime). In 1948, the UN General Assembly adopted the Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG) which defined the crime of genocide for the first time. Genocide is a denial of the right of existence of entire human groups, as homicide is the denial of the right to live of individual human beings; such denial of the right of existence shocks the conscience of mankind, results in great losses to humanity in the form of cultural and other contributions represented by these human groups, and is contrary to moral law and the spirit and aims of the United Nations. Many instances of such crimes of genocide have occurred when racial, religious, political and other groups have been destroyed, entirely or in part. The CPPCG was adopted by the UN General Assembly on 9 December 1948 and came into effect on 12 January 1951 (Resolution 260 (III)). It contains an internationally recognized definition of genocide which has been incorporated into the national criminal legislation of many countries and was also adopted by the Rome Statute of the International Criminal Court, which established the International Criminal Court (ICC). Article II of the Convention defines genocide as: ... any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group, as such: Incitement to genocide is recognized as a separate crime under international law and an inchoate crime which does not require genocide to have taken place to be prosecutable. The first draft of the convention included political killings; these provisions were removed in a political and diplomatic compromise following objections from many diverse countries, and originally promoted by the World Jewish Congress and Raphael Lemkin's conception, with some scholars popularly emphasizing in literature the role of the Soviet Union, a permanent United Nations Security Council member. The Soviets argued that the convention's definition should follow the etymology of the term, and Joseph Stalin in particular may have feared greater international scrutiny of the country's political killings, such as the Great Purge. Lemkin, who coined genocide, approached the Soviet delegation as the resolution vote came close to reassure the Soviets that there was no conspiracy against them; none in the Soviet-led bloc opposed the resolution, which passed unanimously in December 1946. Other nations, including the United States, feared that including political groups in the definition would invite international intervention in domestic politics. By 1951, Lemkin was saying that the Soviet Union was the only state that could be indicted for genocide, his concept of genocide, as outlined in Axis Rule in Occupied Europe, covering Stalinist deportations as genocide by default, and differing in many ways from the adopted Genocide Convention. From a 21st-century perspective, it was such a broad coverage that it would include any grossly human rights violation as genocide, and that many events deemed by Lemkin genocidal did not amount to genocide. As the Cold War began, this change was the result of Lemkin's turn to anti-communism in an attempt to convince the United States to ratify the Genocide Convention. Under international law, genocide has two mental (mens rea) elements: the general mental element and the element of specific intent (dolus specialis). The general element refers to whether the prohibited acts were committed with intent, knowledge, recklessness, or negligence. For most serious international crimes, including genocide, the requirement is that the perpetrator act with intent. The Rome Statute defines intent as meaning to engage in the conduct and, in relation to consequences, as meaning to cause that consequence or being "aware that it will occur in the ordinary course of events". The specific intent element defines the purpose of committing the acts: "to destroy in whole or in part, a national, ethnical, racial or religious group, as such". The specific intent is a core factor distinguishing genocide from other international crimes, such as war crimes or crimes against humanity. In 2007, the European Court of Human Rights (ECHR) noted in its judgement on Jorgic v. Germany case that, in 1992, the majority of legal scholars took the narrow view that "intent to destroy" in the CPPCG meant the intended physical-biological destruction of the protected group, and that this was still the majority opinion. But the ECHR also noted that a minority took a broader view, and did not consider biological-physical destruction to be necessary, as the intent to destroy a national, racial, religious or ethnic group as a social unit was enough to qualify as genocide. In the same judgement, the ECHR reviewed the judgements of several international and municipal courts. It noted that the International Criminal Tribunal for the former Yugoslavia and the International Court of Justice had agreed with the narrow interpretation (that biological-physical destruction was necessary for an act to qualify as genocide). The ECHR also noted that at the time of its judgement, apart from courts in Germany (which had taken a broad view), that there had been few cases of genocide under other Convention states' municipal laws, and that "There are no reported cases in which the courts of these States have defined the type of group destruction the perpetrator must have intended in order to be found guilty of genocide." In the case of "Onesphore Rwabukombe", the German Federal Court of Justice adhered to its previous judgement, and did not follow the narrow interpretation of the ICTY and the ICJ. The phrase "in whole or in part" has been subject to much discussion by scholars of international humanitarian law. In the Ruhashyankiko report of the United Nations it was once argued that the killing of only a single individual could be genocide if the intent to destroy the wider group was found in the murder, yet official court rulings have since contradicted this. The International Criminal Tribunal for the Former Yugoslavia found in Prosecutor v. Radislav Krstic – Trial Chamber I – Judgment – IT-98-33 (2001) ICTY8 (2 August 2001) that Genocide had been committed. In Prosecutor v. Radislav Krstic – Appeals Chamber – Judgment – IT-98-33 (2004) ICTY 7 (19 April 2004) paragraphs 8, 9, 10, and 11 addressed the issue of in part and found that "the part must be a substantial part of that group. The aim of the Genocide Convention is to prevent the intentional destruction of entire human groups, and the part targeted must be significant enough to have an impact on the group as a whole." The Appeals Chamber goes into details of other cases and the opinions of respected commentators on the Genocide Convention to explain how they came to this conclusion. The judges continue in paragraph 12, "The determination of when the targeted part is substantial enough to meet this requirement may involve a number of considerations. The numeric size of the targeted part of the group is the necessary and important starting point, though not in all cases the ending point of the inquiry. The number of individuals targeted should be evaluated not only in absolute terms but also in relation to the overall size of the entire group. In addition to the numeric size of the targeted portion, its prominence within the group can be a useful consideration. If a specific part of the group is emblematic of the overall group or is essential to its survival, that may support a finding that the part qualifies as substantial within the meaning of Article 4 [of the Tribunal's Statute]." In paragraph 13 the judges raise the issue of the perpetrators' access to the victims: "The historical examples of genocide also suggest that the area of the perpetrators' activity and control, as well as the possible extent of their reach, should be considered. ... The intent to destroy formed by a perpetrator of genocide will always be limited by the opportunity presented to him. While this factor alone will not indicate whether the targeted group is substantial, it can—in combination with other factors—inform the analysis." The drafters of the CPPCG chose not to include political or social groups among the protected groups. Instead, they opted to focus on "stable" identities, attributes that are historically understood as being born into and unable or unlikely to change over time. This definition conflicts with modern conceptions of race as a social construct rather than innate fact and the practice of changing religion, etc. International criminal courts have typically applied a mix of objective and subjective markers for determining whether or not a targeted population is a distinct group. Differences in language, physical appearance, religion, and cultural practices are objective criteria that may show that the groups are distinct. However, in circumstances such as the Rwandan genocide, Hutus and Tutsis were often physically indistinguishable. In such a situation where a definitive answer based on objective markers is not clear, courts have turned to the subjective standard that "if a victim was perceived by a perpetrator as belonging to a protected group, the victim could be considered by the Chamber as a member of the protected group". Stigmatization of the group by the perpetrators through legal measures, such as withholding citizenship, requiring the group to be identified, or isolating them from the whole could show that the perpetrators viewed the victims as a protected group. The convention came into force as international law on 12 January 1951 after the minimum 20 countries became parties. At that time however, only two of the five permanent members of the UN Security Council were parties to the treaty: France and the Republic of China. The Soviet Union ratified in 1954, the United Kingdom in 1970, the People's Republic of China in 1983 (having replaced the Taiwan-based Republic of China on the UNSC in 1971), and the United States in 1988. William Schabas has suggested that a permanent body as recommended by the Whitaker Report to monitor the implementation of the Genocide Convention, and require states to issue reports on their compliance with the convention (such as were incorporated into the United Nations Optional Protocol to the Convention against Torture), would make the convention more effective. UN Security Council Resolution 1674, adopted by the United Nations Security Council on 28 April 2006, "reaffirms the provisions of paragraphs 138 and 139 of the 2005 World Summit Outcome Document regarding the responsibility to protect populations from genocide, war crimes, ethnic cleansing and crimes against humanity". The resolution committed the council to action to protect civilians in armed conflict. In 2008 the UN Security Council adopted resolution 1820, which noted that "rape and other forms of sexual violence can constitute war crimes, crimes against humanity or a constitutive act with respect to genocide". Since the Convention came into effect in January 1951 about 80 United Nations member states have passed legislation that incorporates the provisions of CPPCG into their municipal law. Writing in 1998, Kurt Jonassohn and Karin Björnson stated that the CPPCG was a legal instrument resulting from a diplomatic compromise. As such the wording of the treaty is not intended to be a definition suitable as a research tool, and although it is used for this purpose, as it has international legal credibility that others lack, other genocide definitions have also been proposed. They go on to say that none of these alternative definitions have gained widespread support, they postulate that the major reason why no generally accepted genocide definition has emerged is because academics have adjusted their focus to emphasise different periods and have found it expedient to use slightly different definitions. For example, Frank Chalk and Kurt Jonassohn studied all human history, while Leo Kuper and Rudolph Rummel concentrated on the 20th century, and Helen Fein, Barbara Harff, and Ted Gurr looked at post-World War II events. Yehuda Bauer, has argued that the present definition is problematic, contending that many of what are usually called genocides were not racially motivated. Bauer gave the Rwandan Genocide, where, Bauer argued, both the perpetrators and victims were of the same ethnicity, as an example. He argued that, because of this discrepancy, "clearly, the existing definition of genocide is inadequate and needs to be altered." The exclusion of social and political groups as targets of genocide in the CPPCG legal definition has been criticized by some historians and sociologists, for example, M. Hassan Kakar in his book The Soviet Invasion and the Afghan Response, 1979–1982 argues that the international definition of genocide is too restricted, and that it should include political groups or any group so defined by the perpetrator and quotes Chalk and Jonassohn: "Genocide is a form of one-sided mass killing in which a state or other authority intends to destroy a group, as that group and membership in it are defined by the perpetrator." In turn some states such as Ethiopia, France, and Spain include political groups as legitimate genocide victims in their anti-genocide laws. Some academics such as Norman Naimark and Anton Weiss-Wendt argue that the exclusion of political and social groups in the final 1948 version of the Genocide Convention was a consequence of Soviet lobbying. Though social and political groups were mentioned in initial drafts of the Convention, the Soviet Union would not agree to become a signatory, unless they were omitted. The United Nations Office on Genocide Prevention and the Responsibility to Protect states that the definition of genocide reached in the Convention was the "result of a negotiating process and reflects the compromise reached among United Nations Member States." Harff and Gurr defined genocide as "the promotion and execution of policies by a state or its agents which result in the deaths of a substantial portion of a group ... [when] the victimized groups are defined primarily in terms of their communal characteristics, i.e., ethnicity, religion or nationality". Harff and Gurr also differentiate between genocides and politicides by the characteristics by which members of a group are identified by the state. In genocides, the victimized groups are defined primarily in terms of their communal characteristics, i.e., ethnicity, religion or nationality. In politicides the victim groups are defined primarily in terms of their hierarchical position or political opposition to the regime and dominant groups. Daniel D. Polsby and Don B. Kates, Jr. state that "we follow Harff's distinction between genocides and 'pogroms', which she describes as 'short-lived outbursts by mobs, which, although often condoned by authorities, rarely persist'. If the violence persists for long enough, however, Harff argues, the distinction between condonation and complicity collapses." According to Rudolph Rummel, genocide has three different meanings. The ordinary meaning is murder by the government of people due to their national, ethnic, racial, or religious group membership. The legal meaning of genocide refers to the international treaty, the Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG). This also includes non-killings that in the end eliminate the group, such as preventing births or forcibly transferring children out of the group to another group. A generalized meaning of genocide is similar to the ordinary meaning but also includes government killings of political opponents or otherwise intentional murder. It is to avoid confusion regarding what meaning is intended that Rummel created the term democide to distinguish from this third meaning. Highlighting the potential for state and non-state actors to commit genocide in the 21st century, for example, in failed states or as non-state actors acquiring weapons of mass destruction, Adrian Gallagher defined genocide as 'When a source of collective power (usually a state) intentionally uses its power base to implement a process of destruction in order to destroy a group (as defined by the perpetrator), in whole or in substantial part, dependent upon relative group size'. The definition upholds the centrality of intent, the multidimensional understanding of destroying, broadens the definition of group identity beyond that of the 1948 definition yet argues that a substantial part of a group has to be destroyed before it can be classified as genocide. Other proposed definitions of genocide include social groups defined by gender, sexual orientation, or gender identity. Democide, a term devised by American political scientist Rudolph Rummel, describes "the intentional killing of an unarmed or disarmed person by government agents acting in their authoritative capacity and pursuant to government policy or high command." This definition covers any murder of any number of persons by any government, including government mandated forced labor, concentration camps, extrajudicial summary killings, civil wars, and mass deaths due to government neglect such as government induced famines like Holodomor. Rummel estimates that in the 20th century, democide resulted in over 262 million deaths. Holocaust historian Yehuda Bauer agreed with Rummel that democide was a more appropriate term in more cases to describe mass atrocities than genocide due to the more inclusive definition of democide versus genocide. In 2013 some international trans activists introduced the term ‘transcide’ to describe the elevated level of killings of trans people globally. A coalition of NGOs from South America and Europe started the "Stop Trans Genocide" campaign. The term "trancide" follows an earlier term, gendercide. Legal scholars have argued that the definition of genocide should be expanded to cover transgender people, because they are victims of institutional discrimination, persecution, and violence. Brian Kritz argued that existing law should be extended to protect transgender people. Similar arguments have been made regarding extending the legal definition of "crimes against humanity." Aside from legal studies, transgender genocide has been examined by scholars of queer studies, hate studies, and other fields. All signatories to the CPPCG are required to prevent and punish acts of genocide, both in peace and wartime, though some barriers make this enforcement difficult. In particular, some of the signatories—namely, Bahrain, Bangladesh, India, Malaysia, the Philippines, Singapore, the United States, Vietnam, Yemen, and former Yugoslavia—signed with the proviso that no claim of genocide could be brought against them at the International Court of Justice without their consent. Despite official protests from other signatories (notably Cyprus and Norway) on the ethics and legal standing of these reservations, the immunity from prosecution they grant has been invoked from time to time, as when the United States refused to allow a charge of genocide brought against it by former Yugoslavia following the 1999 Kosovo War. It is commonly accepted that, at least since World War II, genocide has been illegal under customary international law as a peremptory norm, as well as under conventional international law. Acts of genocide are generally difficult to establish for prosecution because a chain of accountability must be established. International criminal courts and tribunals function primarily when the states involved are incapable or unwilling to prosecute crimes of this magnitude themselves. The Nazi leaders who were prosecuted shortly after World War II for taking part in the Holocaust, and other mass murders, were charged under existing international laws, such as crimes against humanity, as the crime of "genocide' was not formally defined until the 1948 Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG). Nevertheless, the recently coined term appeared in the indictment of the Nazi leaders, Count 3, which stated that those charged had "conducted deliberate and systematic genocide—namely, the extermination of racial and national groups—against the civilian populations of certain occupied territories in order to destroy particular races and classes of people, and national, racial or religious groups, particularly Jews, Poles, Gypsies and others." The term Bosnian genocide is used to refer either to the killings committed by Serb forces in Srebrenica in 1995, or to ethnic cleansing that took place elsewhere during the 1992–1995 Bosnian War. In 2001, the International Criminal Tribunal for the Former Yugoslavia (ICTY) judged that the 1995 Srebrenica massacre was an act of genocide. On 26 February 2007, the International Court of Justice (ICJ), in the Bosnian Genocide Case upheld the ICTY's earlier finding that the massacre in Srebrenica and Zepa constituted genocide, but found that the Serbian government had not participated in a wider genocide on the territory of Bosnia and Herzegovina during the war, as the Bosnian government had claimed. On 12 July 2007, European Court of Human Rights when dismissing the appeal by Nikola Jorgić against his conviction for genocide by a German court (Jorgic v. Germany) noted that the German courts wider interpretation of genocide has since been rejected by international courts considering similar cases. The ECHR also noted that in the 21st century "Amongst scholars, the majority have taken the view that ethnic cleansing, in the way in which it was carried out by the Serb forces in Bosnia and Herzegovina in order to expel Muslims and Croats from their homes, did not constitute genocide. However, there are also a considerable number of scholars who have suggested that these acts did amount to genocide, and the ICTY has found in the Momcilo Krajisnik case that the actus reus of genocide was met in Prijedor "With regard to the charge of genocide, the Chamber found that in spite of evidence of acts perpetrated in the municipalities which constituted the actus reus of genocide". About 30 people have been indicted for participating in genocide or complicity in genocide during the early 1990s in Bosnia. To date, after several plea bargains and some convictions that were successfully challenged on appeal two men, Vujadin Popović and Ljubiša Beara, have been found guilty of committing genocide, Zdravko Tolimir has been found guilty of committing genocide and conspiracy to commit genocide, and two others, Radislav Krstić and Drago Nikolić, have been found guilty of aiding and abetting genocide. Three others have been found guilty of participating in genocides in Bosnia by German courts, one of whom Nikola Jorgić lost an appeal against his conviction in the European Court of Human Rights. A further eight men, former members of the Bosnian Serb security forces were found guilty of genocide by the State Court of Bosnia and Herzegovina (See List of Bosnian genocide prosecutions). Slobodan Milošević, as the former President of Serbia and of Yugoslavia, was the most senior political figure to stand trial at the ICTY. He died on 11 March 2006 during his trial where he was accused of genocide or complicity in genocide in territories within Bosnia and Herzegovina, so no verdict was returned. In 1995, the ICTY issued a warrant for the arrest of Bosnian Serbs Radovan Karadžić and Ratko Mladić on several charges including genocide. On 21 July 2008, Karadžić was arrested in Belgrade, and later tried in The Hague accused of genocide among other crimes. On 24 March 2016, Karadžić was found guilty of genocide in Srebrenica, war crimes and crimes against humanity, 10 of the 11 charges in total, and sentenced to 40 years' imprisonment. Mladić was arrested on 26 May 2011 in Lazarevo, Serbia, and was tried in The Hague. The verdict, delivered on 22 November 2017 found Mladić guilty of 10 of the 11 charges, including genocide and he was sentenced to life imprisonment. The International Criminal Tribunal for Rwanda (ICTR) is a court under the auspices of the United Nations for the prosecution of offenses committed in Rwanda during the genocide which occurred there during April 1994, commencing on 6 April. The ICTR was created on 8 November 1994 by the Security Council of the United Nations in order to judge those people responsible for the acts of genocide and other serious violations of the international law performed in the territory of Rwanda, or by Rwandan citizens in nearby states, between 1 January and 31 December 1994. So far, the ICTR has finished nineteen trials and convicted twenty-seven accused persons. On 14 December 2009, two more men were accused and convicted for their crimes. Another twenty-five persons are still on trial. Twenty-one are awaiting trial in detention, two more added on 14 December 2009. Ten are still at large. The first trial, of Jean-Paul Akayesu, began in 1997. Akayesu was the first person ever to be convicted of the crime of genocide. In October 1998, Akayesu was sentenced to life imprisonment. Jean Kambanda, interim Prime Minister, pleaded guilty. Trials for deeds committed during the Rwandan genocide have also occurred in national courts, including Désiré Munyaneza, who in 2009 became the first man to be arrested and convicted in Canada on charges of war crimes and crimes against humanity, and Yvonne Ntacyobatabara Basebya, who in 2013 became the first Dutch citizen to be convicted for incitement to genocide. The Khmer Rouge, led by Pol Pot, Kang Kek Iew, Ta Mok and other leaders, organized the mass killing of ideologically suspect groups. The total number of victims is estimated at 1.7 million Cambodians between 1975 and 1979, including deaths from slave labour. On 6 June 2003 the Cambodian government and the United Nations reached an agreement to set up the Extraordinary Chambers in the Courts of Cambodia (ECCC) which would focus exclusively on crimes committed by the most senior Khmer Rouge officials during the period of Khmer Rouge rule of 1975–1979. The judges were sworn in early July 2006. The genocide charges related to killings of Cambodia's Vietnamese and Cham minorities, tens of thousand of whom are estimated to have been killed The investigating judges were presented with the names of four suspects charged with genocide on 18 July 2007. Since 2002, the International Criminal Court can exercise its jurisdiction if national courts are unwilling or unable to investigate or prosecute genocide, thus being a "court of last resort," leaving the primary responsibility to exercise jurisdiction over alleged criminals to individual states. Due to the United States concerns over the ICC, the United States prefers to continue to use specially convened international tribunals for such investigations and potential prosecutions. There has been much debate over categorizing the situation in Darfur as genocide. The ongoing conflict in Darfur, Sudan, which started in 2003, was declared a "genocide" by United States Secretary of State Colin Powell on 9 September 2004 in testimony before the Senate Foreign Relations Committee. Since that time however, no other permanent member of the UN Security Council has done so. In fact, in January 2005, an International Commission of Inquiry on Darfur, authorized by UN Security Council Resolution 1564 of 2004, issued a report to the Secretary-General stating that "the Government of Sudan has not pursued a policy of genocide." Nevertheless, the Commission cautioned that "The conclusion that no genocidal policy has been pursued and implemented in Darfur by the Government authorities, directly or through the militias under their control, should not be taken in any way as detracting from the gravity of the crimes perpetrated in that region. International offences such as the crimes against humanity and war crimes that have been committed in Darfur may be no less serious and heinous than genocide." In March 2005, the Security Council formally referred the situation in Darfur to the Prosecutor of the International Criminal Court, taking into account the Commission report but without mentioning any specific crimes. Two permanent members of the Security Council, the United States and China, abstained from the vote on the referral resolution. As of his fourth report to the Security Council, the Prosecutor has found "reasonable grounds to believe that the individuals identified [in the UN Security Council Resolution 1593] have committed crimes against humanity and war crimes," but did not find sufficient evidence to prosecute for genocide. In April 2007, the Judges of the ICC issued arrest warrants against the former Minister of State for the Interior, Ahmad Harun, and a Militia Janjaweed leader, Ali Kushayb, for crimes against humanity and war crimes. On 14 July 2008, prosecutors at the International Criminal Court (ICC), filed ten charges of war crimes against Sudan's President Omar al-Bashir: three counts of genocide, five of crimes against humanity and two of murder. The ICC's prosecutors claimed that al-Bashir "masterminded and implemented a plan to destroy in substantial part" three tribal groups in Darfur because of their ethnicity. On 4 March 2009, the ICC issued a warrant of arrest for Omar Al Bashir, President of Sudan as the ICC Pre-Trial Chamber I concluded that his position as head of state does not grant him immunity against prosecution before the ICC. The warrant was for war crimes and crimes against humanity. It did not include the crime of genocide because the majority of the Chamber did not find that the prosecutors had provided enough evidence to include such a charge. Later the decision was changed by the Appeals Panel and after issuing the second decision, charges against Omar al-Bashir include three counts of genocide. The concept of genocide can be applied to historical events. The preamble of the CPPCG states that "at all periods of history genocide has inflicted great losses on humanity." Revisionist attempts to challenge or affirm claims of genocide are illegal in some countries. Several European countries ban the denial of the Holocaust and the denial of the Armenian genocide, while in Turkey referring to the Armenian genocide, Greek genocide, and Sayfo, and to the period of mass starvation during the Great Famine of Mount Lebanon affecting Maronites, as genocides may be prosecuted under Article 301. Historian William Rubinstein argues that the origin of 20th-century genocides can be traced back to the collapse of the elite structure and normal modes of government in parts of Europe following World War I, commenting: The 'Age of Totalitarianism' included nearly all of the infamous examples of genocide in modern history, headed by the Jewish Holocaust, but also comprising the mass murders and purges of the Communist world, other mass killings carried out by Nazi Germany and its allies, and also the Armenian genocide of 1915. All these slaughters, it is argued here, had a common origin, the collapse of the elite structure and normal modes of government of much of central, eastern and southern Europe as a result of the First World War, without which surely neither Communism nor Fascism would have existed except in the minds of unknown agitators and crackpots. According to Esther Brito, the way in which states commit genocide has evolved in the 21st century and genocidal campaigns have attempted to circumvent international systems designed to prevent, mitigate, and prosecute genocide by adjusting the duration, intensity, and methodology of the genocide. Brito states that modern genocides often happen on a much longer time scale than traditional ones - taking years or decades - and that instead of traditional methods of beatings and executions less directly fatal tactics are used but with the same effect. Brito described the contemporary plights of the Rohingya and Uyghurs as examples of this newer form of genocide. The abuses against West Papuans in Indonesia have also been described as a slow-motion genocide. Study of the risk factors and prevention of genocide was underway before the 1982 International Conference on the Holocaust and Genocide during which multiple papers on the subject were presented. In 1996 Gregory Stanton, the president of Genocide Watch, presented a briefing paper called "The 8 Stages of Genocide" at the United States Department of State. In it he suggested that genocide develops in eight stages that are "predictable but not inexorable". The Stanton paper was presented to the State Department, shortly after the Rwandan Genocide and much of its analysis are based on why that genocide occurred. The preventative measures suggested, given the briefing paper's original target audience, were those that the United States could implement directly or indirectly by using its influence on other governments. In 2012, he added two additional stages, discrimination and persecution. Other authors have focused on the structural conditions leading up to genocide and the psychological and social processes that create an evolution toward genocide. Ervin Staub showed that economic deterioration and political confusion and disorganization were starting points of increasing discrimination and violence in many instances of genocides and mass killing. They lead to scapegoating a group and ideologies that identified that group as an enemy. A history of devaluation of the group that becomes the victim, past violence against the group that becomes the perpetrator leading to psychological wounds, authoritarian cultures and political systems, and the passivity of internal and external witnesses (bystanders) all contribute to the probability that the violence develops into genocide. Intense conflict between groups that is unresolved, becomes intractable and violent can also lead to genocide. In 2006, Dirk Moses criticised genocide studies due to its "rather poor record of ending genocide".
[ { "paragraph_id": 0, "text": "Genocide is the intentional destruction of a people in whole or in part.", "title": "" }, { "paragraph_id": 1, "text": "In 1948, the United Nations Genocide Convention defined genocide as any of five \"acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group\". These five acts were: killing members of the group, causing them serious bodily or mental harm, imposing living conditions intended to destroy the group, preventing births, and forcibly transferring children out of the group. Victims are targeted because of their real or perceived membership of a group, not randomly.", "title": "" }, { "paragraph_id": 2, "text": "The Political Instability Task Force estimated that 43 genocides occurred between 1956 and 2016, resulting in about 50 million deaths. The UNHCR estimated that a further 50 million had been displaced by such episodes of violence up to 2008. Genocide, especially large-scale genocide, is widely considered to signify the epitome of human evil. As a label, it is contentious because it is moralizing, and has been used as a type of moral category since the late 1990s.", "title": "" }, { "paragraph_id": 3, "text": "Polish lawyer Raphael Lemkin coined the term genocide in his 1944 book \"Axis Rule in Occupied Europe\", combining the Greek word γένος (genos, \"race, people\") with the Latin suffix -caedo (\"act of killing\"). In \"Axis rule\", Lemkin documents his research of Nazi occupation policies in Europe, and records a case study of the occupation of Poland. Lemkin asserted that Nazi atrocities against Poles consisted of five policies which exposed their \"intent to destroy\" the Polish nation. These included i) mass-killings of Poles ii) inflicting \"serious bodily or mental harm to members of the group\" iii) planned deterioration of living conditions \"calculated to bring about their destruction\" iv) implementation of various \"measures intended to prevent births within the group\" such as promotion of abortions, burdening pregnant women, etc. v) forced transfer of Polish children to German families. Each of these five markers, according to Lemkin, revealed the Nazi plan to eliminate the Polish identity with certainty. These five criteria were adopted by the 1948 Genocide Convention as its proof for the concept of genocidal intent.", "title": "Etymology" }, { "paragraph_id": 4, "text": "Before the term was coined, there had been various ways of describing such events. Some languages already had words for such killings, including German (Völkermord, lit. 'murder of a people') and Polish (ludobójstwo, lit. 'killing of a people or nation'). In 1941, when describing the \"methodical, merciless butchery\" of \"scores of thousands\" of Russians by Nazi troops during the German invasion of the Soviet Union, Winston Churchill spoke of \"a crime without a name\". Lemkin's 1944 book Axis Rule in Occupied Europe describes the implementation of Nazi policies in occupied Europe and mentions earlier mass killings. After reading about the 1921 assassination of Talat Pasha, the main architect of the Armenian genocide, by Armenian Soghomon Tehlirian, Lemkin asked his professor why there was no law under which Talat could be charged. He later explained that \"as a lawyer, I thought that a crime should not be punished by the victims, but should be punished by a court.\"", "title": "Etymology" }, { "paragraph_id": 5, "text": "Lemkin defined genocide as follows:", "title": "Etymology" }, { "paragraph_id": 6, "text": "New conceptions require new terms. By \"genocide\" we mean the destruction of a nation or of an ethnic group. This new word, coined by the author to denote an old practice in its modern development, is made from the ancient Greek word genos (race, tribe) and the Latin cide (killing), thus corresponding in its formation to such words as tyrannicide, homicide, infanticide, etc. Generally speaking, genocide does not necessarily mean the immediate destruction of a nation, except when accomplished by mass killings of all members of a nation. It is intended rather to signify a coordinated plan of different actions aiming at the destruction of essential foundations of the life of national groups, with the aim of annihilating the groups themselves. The objectives of such a plan would be disintegration of the political and social institutions, of culture, language, national feelings, religion, and the economic existence of national groups, and the destruction of the personal security, liberty, health, dignity, and even the lives of the individuals belonging to such groups. Genocide is directed against the national group as an entity, and the actions involved are directed against individuals, not in their individual capacity, but as members of the national group.", "title": "Etymology" }, { "paragraph_id": 7, "text": "The preamble to the 1948 Genocide Convention (CPPCG) notes that instances of genocide have taken place throughout history; it was not until Lemkin coined the term and the prosecution of perpetrators of the Holocaust at the Nuremberg Trials that the United Nations defined the crime of genocide under international law in the Genocide Convention. It was several years before the term was widely adopted by the international community. When the Nuremberg trials revealed the inadequacy of phrases like \"Germanization\", \"crimes against humanity\" and \"mass murder\", scholars of international law reached agreement that Lemkin's work provided a conceptual framework for Nazi crimes. A 1946 headline in The New York Times announced that \"Genocide Is the New Name for the Crime Fastened on the Nazi Leaders\"; the word was used in indictments at the Nuremberg trials, held from 1945, but solely as a descriptive term, not yet as a formal legal term. The so-called Polish Genocide Trials of Arthur Greiser and Amon Leopold Goth in 1946 were the first trials in which judgments included the term.", "title": "Etymology" }, { "paragraph_id": 8, "text": "The Genocide Convention establishes five prohibited acts that, when committed with the requisite intent, amount to genocide. Although massacre-style killings are the most commonly identified and punished as genocide, the range of violence that is contemplated by the law is significantly broader.", "title": "Prohibited acts" }, { "paragraph_id": 9, "text": "While mass killing is not necessary for genocide to have been committed, it has been present in almost all recognized genocides. A near-uniform pattern has emerged throughout history in which men and adolescent boys are singled out for murder in the early stages, such as in the genocide of the Yazidis by Daesh, the Ottoman Turks' attack on the Armenians, and the Burmese security forces' attacks on the Rohingya. Men and boys are typically subject to \"fast\" killings, such as by gunshot. Women and girls are more likely to die slower deaths by slashing, burning, or as a result of sexual violence. The jurisprudence of the International Criminal Tribunal for Rwanda (ICTR), among others, shows that both the initial executions and those that quickly follow other acts of extreme violence, such as rape and torture, are recognized as falling under the first prohibited act.", "title": "Prohibited acts" }, { "paragraph_id": 10, "text": "A less settled discussion is whether deaths that are further removed from the initial acts of violence can be addressed under this provision of the Genocide Convention. Legal scholars have posited, for example, that deaths resulting from other genocidal acts including causing serious bodily or mental harm or the successful deliberate infliction of conditions of life calculated to bring about physical destruction should be considered genocidal killings.", "title": "Prohibited acts" }, { "paragraph_id": 11, "text": "This second prohibited act can encompass a wide range of non-fatal genocidal acts. The ICTR and International Criminal Tribunal for the former Yugoslavia (ICTY) have held that rape and sexual violence may constitute the second prohibited act of genocide by causing both physical and mental harm. In its landmark Akayesu decision, the ICTR held that rapes and sexual violence resulted in \"physical and psychological destruction\". Sexual violence is a hallmark of genocidal violence, with most genocidal campaigns explicitly or implicitly sanctioning it. It is estimated that 250,000 to 500,000 women were raped in the three months of the Rwandan genocide, many of whom were subjected to multiple rapes or gang rape. In Darfur, a systemic campaign of rape and often sexual mutilation was carried out and in Burma public mass rapes and gang rapes were inflicted on the Rohingya by Burmese security forces. Sexual slavery was documented in the Armenian genocide by the Ottoman Turks and Daesh's genocide of the Yazidi.", "title": "Prohibited acts" }, { "paragraph_id": 12, "text": "Torture and other cruel, inhuman, or degrading treatment or punishment, when committed with the requisite intent, are also genocide by causing serious bodily or mental harm to members of the group. The ICTY found that both experiencing a failed execution and watching the murder of one's family members may constitute torture. The Syrian Commission of Inquiry (COI) also found that enslavement, removal of one's children into indoctrination or sexual slavery, and acts of physical and sexual violence rise to the level of torture, as well. While it was subject to some debate, the ICTY and, later, the Syrian COI held that under some circumstances deportation and forcible transfer may also cause serious bodily or mental harm.", "title": "Prohibited acts" }, { "paragraph_id": 13, "text": "The third prohibited act is distinguished from the genocidal act of killing because the deaths are not immediate (or may not even come to pass), but rather create circumstances that do not support prolonged life. Due to the longer period of time before the actual destruction would be achieved, the ICTR held that courts must consider the duration of time the conditions are imposed as an element of the act. In the 19th century the United States federal government supported the extermination of bison, which Native Americans in the Great Plains relied on as a source of food. This was done for various reasons, primarily to pressure them onto reservations during times of conflict. Some genocide experts describe this as an example of genocide that involves removing the means of survival.", "title": "Prohibited acts" }, { "paragraph_id": 14, "text": "The ICTR provided guidance into what constitutes a violation of the third act. In Akayesu, it identified \"subjecting a group of people to a subsistence diet, systematic expulsion from homes and the reduction of essential medical services below minimum requirement\" as rising to genocide. In Kayishema and Ruzindana, it extended the list to include: \"lack of proper housing, clothing, hygiene and medical care or excessive work or physical exertion\" among the conditions. It further noted that, in addition to deprivation of necessary resources, rape could also fit within this prohibited act.", "title": "Prohibited acts" }, { "paragraph_id": 15, "text": "The fourth prohibited act is aimed at preventing the protected group from regenerating through reproduction. It encompasses acts affecting reproduction and intimate relationships, such as involuntary sterilization, forced abortion, the prohibition of marriage, and long-term separation of men and women intended to prevent procreation. Rape has been found to violate the fourth prohibited act on two bases: where the rape was committed with the intent to impregnate a woman and thereby force her to carry a child of another group (in societies where group identity is determined by patrilineal identity) and where the person raped subsequently refuses to procreate as a result of the trauma. Accordingly, it can take into account both physical and mental measures imposed by the perpetrators.", "title": "Prohibited acts" }, { "paragraph_id": 16, "text": "The final prohibited act is the only prohibited act that does not lead to physical or biological destruction, but rather to destruction of the group as a cultural and social unit. It occurs when children of the protected group are transferred to the perpetrator group. Boys are typically taken into the group by changing their names to those common of the perpetrator group, converting their religion, and using them for labor or as soldiers. Girls who are transferred are not generally converted to the perpetrator group, but instead treated as chattel, as played out in both the Yazidi and Armenian genocides.", "title": "Prohibited acts" }, { "paragraph_id": 17, "text": "Before genocide was made a crime against national law, it was considered a sovereign right. When Lemkin asked about a way to punish the perpetrators of the Armenian genocide, a law professor told him: \"Consider the case of a farmer who owns a flock of chickens. He kills them and this is his business. If you interfere, you are trespassing.\" As late as 1959, many world leaders still \"believed states had a right to commit genocide against people within their borders\", according to political scientist Douglas Irvin-Erickson.", "title": "Crime" }, { "paragraph_id": 18, "text": "After the Holocaust, which had been perpetrated by Nazi Germany prior to and during World War II, Lemkin successfully campaigned for the universal acceptance of international laws defining and forbidding genocides. In 1946, the first session of the United Nations General Assembly adopted a resolution that affirmed genocide was a crime under international law and enumerated examples of such events (but did not provide a full legal definition of the crime). In 1948, the UN General Assembly adopted the Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG) which defined the crime of genocide for the first time.", "title": "Crime" }, { "paragraph_id": 19, "text": "Genocide is a denial of the right of existence of entire human groups, as homicide is the denial of the right to live of individual human beings; such denial of the right of existence shocks the conscience of mankind, results in great losses to humanity in the form of cultural and other contributions represented by these human groups, and is contrary to moral law and the spirit and aims of the United Nations. Many instances of such crimes of genocide have occurred when racial, religious, political and other groups have been destroyed, entirely or in part.", "title": "Crime" }, { "paragraph_id": 20, "text": "The CPPCG was adopted by the UN General Assembly on 9 December 1948 and came into effect on 12 January 1951 (Resolution 260 (III)). It contains an internationally recognized definition of genocide which has been incorporated into the national criminal legislation of many countries and was also adopted by the Rome Statute of the International Criminal Court, which established the International Criminal Court (ICC). Article II of the Convention defines genocide as:", "title": "Crime" }, { "paragraph_id": 21, "text": "... any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group, as such:", "title": "Crime" }, { "paragraph_id": 22, "text": "Incitement to genocide is recognized as a separate crime under international law and an inchoate crime which does not require genocide to have taken place to be prosecutable.", "title": "Crime" }, { "paragraph_id": 23, "text": "The first draft of the convention included political killings; these provisions were removed in a political and diplomatic compromise following objections from many diverse countries, and originally promoted by the World Jewish Congress and Raphael Lemkin's conception, with some scholars popularly emphasizing in literature the role of the Soviet Union, a permanent United Nations Security Council member. The Soviets argued that the convention's definition should follow the etymology of the term, and Joseph Stalin in particular may have feared greater international scrutiny of the country's political killings, such as the Great Purge. Lemkin, who coined genocide, approached the Soviet delegation as the resolution vote came close to reassure the Soviets that there was no conspiracy against them; none in the Soviet-led bloc opposed the resolution, which passed unanimously in December 1946. Other nations, including the United States, feared that including political groups in the definition would invite international intervention in domestic politics.", "title": "Crime" }, { "paragraph_id": 24, "text": "By 1951, Lemkin was saying that the Soviet Union was the only state that could be indicted for genocide, his concept of genocide, as outlined in Axis Rule in Occupied Europe, covering Stalinist deportations as genocide by default, and differing in many ways from the adopted Genocide Convention. From a 21st-century perspective, it was such a broad coverage that it would include any grossly human rights violation as genocide, and that many events deemed by Lemkin genocidal did not amount to genocide. As the Cold War began, this change was the result of Lemkin's turn to anti-communism in an attempt to convince the United States to ratify the Genocide Convention.", "title": "Crime" }, { "paragraph_id": 25, "text": "Under international law, genocide has two mental (mens rea) elements: the general mental element and the element of specific intent (dolus specialis). The general element refers to whether the prohibited acts were committed with intent, knowledge, recklessness, or negligence. For most serious international crimes, including genocide, the requirement is that the perpetrator act with intent. The Rome Statute defines intent as meaning to engage in the conduct and, in relation to consequences, as meaning to cause that consequence or being \"aware that it will occur in the ordinary course of events\".", "title": "Crime" }, { "paragraph_id": 26, "text": "The specific intent element defines the purpose of committing the acts: \"to destroy in whole or in part, a national, ethnical, racial or religious group, as such\". The specific intent is a core factor distinguishing genocide from other international crimes, such as war crimes or crimes against humanity.", "title": "Crime" }, { "paragraph_id": 27, "text": "In 2007, the European Court of Human Rights (ECHR) noted in its judgement on Jorgic v. Germany case that, in 1992, the majority of legal scholars took the narrow view that \"intent to destroy\" in the CPPCG meant the intended physical-biological destruction of the protected group, and that this was still the majority opinion. But the ECHR also noted that a minority took a broader view, and did not consider biological-physical destruction to be necessary, as the intent to destroy a national, racial, religious or ethnic group as a social unit was enough to qualify as genocide.", "title": "Crime" }, { "paragraph_id": 28, "text": "In the same judgement, the ECHR reviewed the judgements of several international and municipal courts. It noted that the International Criminal Tribunal for the former Yugoslavia and the International Court of Justice had agreed with the narrow interpretation (that biological-physical destruction was necessary for an act to qualify as genocide). The ECHR also noted that at the time of its judgement, apart from courts in Germany (which had taken a broad view), that there had been few cases of genocide under other Convention states' municipal laws, and that \"There are no reported cases in which the courts of these States have defined the type of group destruction the perpetrator must have intended in order to be found guilty of genocide.\"", "title": "Crime" }, { "paragraph_id": 29, "text": "In the case of \"Onesphore Rwabukombe\", the German Federal Court of Justice adhered to its previous judgement, and did not follow the narrow interpretation of the ICTY and the ICJ.", "title": "Crime" }, { "paragraph_id": 30, "text": "The phrase \"in whole or in part\" has been subject to much discussion by scholars of international humanitarian law. In the Ruhashyankiko report of the United Nations it was once argued that the killing of only a single individual could be genocide if the intent to destroy the wider group was found in the murder, yet official court rulings have since contradicted this. The International Criminal Tribunal for the Former Yugoslavia found in Prosecutor v. Radislav Krstic – Trial Chamber I – Judgment – IT-98-33 (2001) ICTY8 (2 August 2001) that Genocide had been committed. In Prosecutor v. Radislav Krstic – Appeals Chamber – Judgment – IT-98-33 (2004) ICTY 7 (19 April 2004) paragraphs 8, 9, 10, and 11 addressed the issue of in part and found that \"the part must be a substantial part of that group. The aim of the Genocide Convention is to prevent the intentional destruction of entire human groups, and the part targeted must be significant enough to have an impact on the group as a whole.\" The Appeals Chamber goes into details of other cases and the opinions of respected commentators on the Genocide Convention to explain how they came to this conclusion.", "title": "Crime" }, { "paragraph_id": 31, "text": "The judges continue in paragraph 12, \"The determination of when the targeted part is substantial enough to meet this requirement may involve a number of considerations. The numeric size of the targeted part of the group is the necessary and important starting point, though not in all cases the ending point of the inquiry. The number of individuals targeted should be evaluated not only in absolute terms but also in relation to the overall size of the entire group. In addition to the numeric size of the targeted portion, its prominence within the group can be a useful consideration. If a specific part of the group is emblematic of the overall group or is essential to its survival, that may support a finding that the part qualifies as substantial within the meaning of Article 4 [of the Tribunal's Statute].\"", "title": "Crime" }, { "paragraph_id": 32, "text": "In paragraph 13 the judges raise the issue of the perpetrators' access to the victims: \"The historical examples of genocide also suggest that the area of the perpetrators' activity and control, as well as the possible extent of their reach, should be considered. ... The intent to destroy formed by a perpetrator of genocide will always be limited by the opportunity presented to him. While this factor alone will not indicate whether the targeted group is substantial, it can—in combination with other factors—inform the analysis.\"", "title": "Crime" }, { "paragraph_id": 33, "text": "The drafters of the CPPCG chose not to include political or social groups among the protected groups. Instead, they opted to focus on \"stable\" identities, attributes that are historically understood as being born into and unable or unlikely to change over time. This definition conflicts with modern conceptions of race as a social construct rather than innate fact and the practice of changing religion, etc.", "title": "Crime" }, { "paragraph_id": 34, "text": "International criminal courts have typically applied a mix of objective and subjective markers for determining whether or not a targeted population is a distinct group. Differences in language, physical appearance, religion, and cultural practices are objective criteria that may show that the groups are distinct. However, in circumstances such as the Rwandan genocide, Hutus and Tutsis were often physically indistinguishable.", "title": "Crime" }, { "paragraph_id": 35, "text": "In such a situation where a definitive answer based on objective markers is not clear, courts have turned to the subjective standard that \"if a victim was perceived by a perpetrator as belonging to a protected group, the victim could be considered by the Chamber as a member of the protected group\". Stigmatization of the group by the perpetrators through legal measures, such as withholding citizenship, requiring the group to be identified, or isolating them from the whole could show that the perpetrators viewed the victims as a protected group.", "title": "Crime" }, { "paragraph_id": 36, "text": "The convention came into force as international law on 12 January 1951 after the minimum 20 countries became parties. At that time however, only two of the five permanent members of the UN Security Council were parties to the treaty: France and the Republic of China. The Soviet Union ratified in 1954, the United Kingdom in 1970, the People's Republic of China in 1983 (having replaced the Taiwan-based Republic of China on the UNSC in 1971), and the United States in 1988.", "title": "Crime" }, { "paragraph_id": 37, "text": "William Schabas has suggested that a permanent body as recommended by the Whitaker Report to monitor the implementation of the Genocide Convention, and require states to issue reports on their compliance with the convention (such as were incorporated into the United Nations Optional Protocol to the Convention against Torture), would make the convention more effective.", "title": "Crime" }, { "paragraph_id": 38, "text": "UN Security Council Resolution 1674, adopted by the United Nations Security Council on 28 April 2006, \"reaffirms the provisions of paragraphs 138 and 139 of the 2005 World Summit Outcome Document regarding the responsibility to protect populations from genocide, war crimes, ethnic cleansing and crimes against humanity\". The resolution committed the council to action to protect civilians in armed conflict.", "title": "Crime" }, { "paragraph_id": 39, "text": "In 2008 the UN Security Council adopted resolution 1820, which noted that \"rape and other forms of sexual violence can constitute war crimes, crimes against humanity or a constitutive act with respect to genocide\".", "title": "Crime" }, { "paragraph_id": 40, "text": "Since the Convention came into effect in January 1951 about 80 United Nations member states have passed legislation that incorporates the provisions of CPPCG into their municipal law.", "title": "Crime" }, { "paragraph_id": 41, "text": "Writing in 1998, Kurt Jonassohn and Karin Björnson stated that the CPPCG was a legal instrument resulting from a diplomatic compromise. As such the wording of the treaty is not intended to be a definition suitable as a research tool, and although it is used for this purpose, as it has international legal credibility that others lack, other genocide definitions have also been proposed. They go on to say that none of these alternative definitions have gained widespread support, they postulate that the major reason why no generally accepted genocide definition has emerged is because academics have adjusted their focus to emphasise different periods and have found it expedient to use slightly different definitions. For example, Frank Chalk and Kurt Jonassohn studied all human history, while Leo Kuper and Rudolph Rummel concentrated on the 20th century, and Helen Fein, Barbara Harff, and Ted Gurr looked at post-World War II events.", "title": "Other definitions of genocide" }, { "paragraph_id": 42, "text": "Yehuda Bauer, has argued that the present definition is problematic, contending that many of what are usually called genocides were not racially motivated. Bauer gave the Rwandan Genocide, where, Bauer argued, both the perpetrators and victims were of the same ethnicity, as an example. He argued that, because of this discrepancy, \"clearly, the existing definition of genocide is inadequate and needs to be altered.\"", "title": "Other definitions of genocide" }, { "paragraph_id": 43, "text": "The exclusion of social and political groups as targets of genocide in the CPPCG legal definition has been criticized by some historians and sociologists, for example, M. Hassan Kakar in his book The Soviet Invasion and the Afghan Response, 1979–1982 argues that the international definition of genocide is too restricted, and that it should include political groups or any group so defined by the perpetrator and quotes Chalk and Jonassohn: \"Genocide is a form of one-sided mass killing in which a state or other authority intends to destroy a group, as that group and membership in it are defined by the perpetrator.\" In turn some states such as Ethiopia, France, and Spain include political groups as legitimate genocide victims in their anti-genocide laws.", "title": "Other definitions of genocide" }, { "paragraph_id": 44, "text": "Some academics such as Norman Naimark and Anton Weiss-Wendt argue that the exclusion of political and social groups in the final 1948 version of the Genocide Convention was a consequence of Soviet lobbying. Though social and political groups were mentioned in initial drafts of the Convention, the Soviet Union would not agree to become a signatory, unless they were omitted. The United Nations Office on Genocide Prevention and the Responsibility to Protect states that the definition of genocide reached in the Convention was the \"result of a negotiating process and reflects the compromise reached among United Nations Member States.\"", "title": "Other definitions of genocide" }, { "paragraph_id": 45, "text": "Harff and Gurr defined genocide as \"the promotion and execution of policies by a state or its agents which result in the deaths of a substantial portion of a group ... [when] the victimized groups are defined primarily in terms of their communal characteristics, i.e., ethnicity, religion or nationality\". Harff and Gurr also differentiate between genocides and politicides by the characteristics by which members of a group are identified by the state. In genocides, the victimized groups are defined primarily in terms of their communal characteristics, i.e., ethnicity, religion or nationality. In politicides the victim groups are defined primarily in terms of their hierarchical position or political opposition to the regime and dominant groups. Daniel D. Polsby and Don B. Kates, Jr. state that \"we follow Harff's distinction between genocides and 'pogroms', which she describes as 'short-lived outbursts by mobs, which, although often condoned by authorities, rarely persist'. If the violence persists for long enough, however, Harff argues, the distinction between condonation and complicity collapses.\"", "title": "Other definitions of genocide" }, { "paragraph_id": 46, "text": "According to Rudolph Rummel, genocide has three different meanings. The ordinary meaning is murder by the government of people due to their national, ethnic, racial, or religious group membership. The legal meaning of genocide refers to the international treaty, the Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG). This also includes non-killings that in the end eliminate the group, such as preventing births or forcibly transferring children out of the group to another group. A generalized meaning of genocide is similar to the ordinary meaning but also includes government killings of political opponents or otherwise intentional murder. It is to avoid confusion regarding what meaning is intended that Rummel created the term democide to distinguish from this third meaning.", "title": "Other definitions of genocide" }, { "paragraph_id": 47, "text": "Highlighting the potential for state and non-state actors to commit genocide in the 21st century, for example, in failed states or as non-state actors acquiring weapons of mass destruction, Adrian Gallagher defined genocide as 'When a source of collective power (usually a state) intentionally uses its power base to implement a process of destruction in order to destroy a group (as defined by the perpetrator), in whole or in substantial part, dependent upon relative group size'. The definition upholds the centrality of intent, the multidimensional understanding of destroying, broadens the definition of group identity beyond that of the 1948 definition yet argues that a substantial part of a group has to be destroyed before it can be classified as genocide.", "title": "Other definitions of genocide" }, { "paragraph_id": 48, "text": "Other proposed definitions of genocide include social groups defined by gender, sexual orientation, or gender identity.", "title": "Other definitions of genocide" }, { "paragraph_id": 49, "text": "Democide, a term devised by American political scientist Rudolph Rummel, describes \"the intentional killing of an unarmed or disarmed person by government agents acting in their authoritative capacity and pursuant to government policy or high command.\" This definition covers any murder of any number of persons by any government, including government mandated forced labor, concentration camps, extrajudicial summary killings, civil wars, and mass deaths due to government neglect such as government induced famines like Holodomor. Rummel estimates that in the 20th century, democide resulted in over 262 million deaths.", "title": "Other definitions of genocide" }, { "paragraph_id": 50, "text": "Holocaust historian Yehuda Bauer agreed with Rummel that democide was a more appropriate term in more cases to describe mass atrocities than genocide due to the more inclusive definition of democide versus genocide.", "title": "Other definitions of genocide" }, { "paragraph_id": 51, "text": "In 2013 some international trans activists introduced the term ‘transcide’ to describe the elevated level of killings of trans people globally. A coalition of NGOs from South America and Europe started the \"Stop Trans Genocide\" campaign. The term \"trancide\" follows an earlier term, gendercide. Legal scholars have argued that the definition of genocide should be expanded to cover transgender people, because they are victims of institutional discrimination, persecution, and violence. Brian Kritz argued that existing law should be extended to protect transgender people. Similar arguments have been made regarding extending the legal definition of \"crimes against humanity.\" Aside from legal studies, transgender genocide has been examined by scholars of queer studies, hate studies, and other fields.", "title": "Other definitions of genocide" }, { "paragraph_id": 52, "text": "All signatories to the CPPCG are required to prevent and punish acts of genocide, both in peace and wartime, though some barriers make this enforcement difficult. In particular, some of the signatories—namely, Bahrain, Bangladesh, India, Malaysia, the Philippines, Singapore, the United States, Vietnam, Yemen, and former Yugoslavia—signed with the proviso that no claim of genocide could be brought against them at the International Court of Justice without their consent. Despite official protests from other signatories (notably Cyprus and Norway) on the ethics and legal standing of these reservations, the immunity from prosecution they grant has been invoked from time to time, as when the United States refused to allow a charge of genocide brought against it by former Yugoslavia following the 1999 Kosovo War.", "title": "International prosecution" }, { "paragraph_id": 53, "text": "It is commonly accepted that, at least since World War II, genocide has been illegal under customary international law as a peremptory norm, as well as under conventional international law. Acts of genocide are generally difficult to establish for prosecution because a chain of accountability must be established. International criminal courts and tribunals function primarily when the states involved are incapable or unwilling to prosecute crimes of this magnitude themselves.", "title": "International prosecution" }, { "paragraph_id": 54, "text": "The Nazi leaders who were prosecuted shortly after World War II for taking part in the Holocaust, and other mass murders, were charged under existing international laws, such as crimes against humanity, as the crime of \"genocide' was not formally defined until the 1948 Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG). Nevertheless, the recently coined term appeared in the indictment of the Nazi leaders, Count 3, which stated that those charged had \"conducted deliberate and systematic genocide—namely, the extermination of racial and national groups—against the civilian populations of certain occupied territories in order to destroy particular races and classes of people, and national, racial or religious groups, particularly Jews, Poles, Gypsies and others.\"", "title": "International prosecution" }, { "paragraph_id": 55, "text": "The term Bosnian genocide is used to refer either to the killings committed by Serb forces in Srebrenica in 1995, or to ethnic cleansing that took place elsewhere during the 1992–1995 Bosnian War.", "title": "International prosecution" }, { "paragraph_id": 56, "text": "In 2001, the International Criminal Tribunal for the Former Yugoslavia (ICTY) judged that the 1995 Srebrenica massacre was an act of genocide. On 26 February 2007, the International Court of Justice (ICJ), in the Bosnian Genocide Case upheld the ICTY's earlier finding that the massacre in Srebrenica and Zepa constituted genocide, but found that the Serbian government had not participated in a wider genocide on the territory of Bosnia and Herzegovina during the war, as the Bosnian government had claimed.", "title": "International prosecution" }, { "paragraph_id": 57, "text": "On 12 July 2007, European Court of Human Rights when dismissing the appeal by Nikola Jorgić against his conviction for genocide by a German court (Jorgic v. Germany) noted that the German courts wider interpretation of genocide has since been rejected by international courts considering similar cases. The ECHR also noted that in the 21st century \"Amongst scholars, the majority have taken the view that ethnic cleansing, in the way in which it was carried out by the Serb forces in Bosnia and Herzegovina in order to expel Muslims and Croats from their homes, did not constitute genocide. However, there are also a considerable number of scholars who have suggested that these acts did amount to genocide, and the ICTY has found in the Momcilo Krajisnik case that the actus reus of genocide was met in Prijedor \"With regard to the charge of genocide, the Chamber found that in spite of evidence of acts perpetrated in the municipalities which constituted the actus reus of genocide\".", "title": "International prosecution" }, { "paragraph_id": 58, "text": "About 30 people have been indicted for participating in genocide or complicity in genocide during the early 1990s in Bosnia. To date, after several plea bargains and some convictions that were successfully challenged on appeal two men, Vujadin Popović and Ljubiša Beara, have been found guilty of committing genocide, Zdravko Tolimir has been found guilty of committing genocide and conspiracy to commit genocide, and two others, Radislav Krstić and Drago Nikolić, have been found guilty of aiding and abetting genocide. Three others have been found guilty of participating in genocides in Bosnia by German courts, one of whom Nikola Jorgić lost an appeal against his conviction in the European Court of Human Rights. A further eight men, former members of the Bosnian Serb security forces were found guilty of genocide by the State Court of Bosnia and Herzegovina (See List of Bosnian genocide prosecutions).", "title": "International prosecution" }, { "paragraph_id": 59, "text": "Slobodan Milošević, as the former President of Serbia and of Yugoslavia, was the most senior political figure to stand trial at the ICTY. He died on 11 March 2006 during his trial where he was accused of genocide or complicity in genocide in territories within Bosnia and Herzegovina, so no verdict was returned. In 1995, the ICTY issued a warrant for the arrest of Bosnian Serbs Radovan Karadžić and Ratko Mladić on several charges including genocide. On 21 July 2008, Karadžić was arrested in Belgrade, and later tried in The Hague accused of genocide among other crimes. On 24 March 2016, Karadžić was found guilty of genocide in Srebrenica, war crimes and crimes against humanity, 10 of the 11 charges in total, and sentenced to 40 years' imprisonment. Mladić was arrested on 26 May 2011 in Lazarevo, Serbia, and was tried in The Hague. The verdict, delivered on 22 November 2017 found Mladić guilty of 10 of the 11 charges, including genocide and he was sentenced to life imprisonment.", "title": "International prosecution" }, { "paragraph_id": 60, "text": "The International Criminal Tribunal for Rwanda (ICTR) is a court under the auspices of the United Nations for the prosecution of offenses committed in Rwanda during the genocide which occurred there during April 1994, commencing on 6 April. The ICTR was created on 8 November 1994 by the Security Council of the United Nations in order to judge those people responsible for the acts of genocide and other serious violations of the international law performed in the territory of Rwanda, or by Rwandan citizens in nearby states, between 1 January and 31 December 1994.", "title": "International prosecution" }, { "paragraph_id": 61, "text": "So far, the ICTR has finished nineteen trials and convicted twenty-seven accused persons. On 14 December 2009, two more men were accused and convicted for their crimes. Another twenty-five persons are still on trial. Twenty-one are awaiting trial in detention, two more added on 14 December 2009. Ten are still at large. The first trial, of Jean-Paul Akayesu, began in 1997. Akayesu was the first person ever to be convicted of the crime of genocide. In October 1998, Akayesu was sentenced to life imprisonment. Jean Kambanda, interim Prime Minister, pleaded guilty.", "title": "International prosecution" }, { "paragraph_id": 62, "text": "Trials for deeds committed during the Rwandan genocide have also occurred in national courts, including Désiré Munyaneza, who in 2009 became the first man to be arrested and convicted in Canada on charges of war crimes and crimes against humanity, and Yvonne Ntacyobatabara Basebya, who in 2013 became the first Dutch citizen to be convicted for incitement to genocide.", "title": "International prosecution" }, { "paragraph_id": 63, "text": "The Khmer Rouge, led by Pol Pot, Kang Kek Iew, Ta Mok and other leaders, organized the mass killing of ideologically suspect groups. The total number of victims is estimated at 1.7 million Cambodians between 1975 and 1979, including deaths from slave labour.", "title": "International prosecution" }, { "paragraph_id": 64, "text": "On 6 June 2003 the Cambodian government and the United Nations reached an agreement to set up the Extraordinary Chambers in the Courts of Cambodia (ECCC) which would focus exclusively on crimes committed by the most senior Khmer Rouge officials during the period of Khmer Rouge rule of 1975–1979. The judges were sworn in early July 2006.", "title": "International prosecution" }, { "paragraph_id": 65, "text": "The genocide charges related to killings of Cambodia's Vietnamese and Cham minorities, tens of thousand of whom are estimated to have been killed", "title": "International prosecution" }, { "paragraph_id": 66, "text": "The investigating judges were presented with the names of four suspects charged with genocide on 18 July 2007.", "title": "International prosecution" }, { "paragraph_id": 67, "text": "Since 2002, the International Criminal Court can exercise its jurisdiction if national courts are unwilling or unable to investigate or prosecute genocide, thus being a \"court of last resort,\" leaving the primary responsibility to exercise jurisdiction over alleged criminals to individual states. Due to the United States concerns over the ICC, the United States prefers to continue to use specially convened international tribunals for such investigations and potential prosecutions.", "title": "International prosecution" }, { "paragraph_id": 68, "text": "There has been much debate over categorizing the situation in Darfur as genocide. The ongoing conflict in Darfur, Sudan, which started in 2003, was declared a \"genocide\" by United States Secretary of State Colin Powell on 9 September 2004 in testimony before the Senate Foreign Relations Committee. Since that time however, no other permanent member of the UN Security Council has done so. In fact, in January 2005, an International Commission of Inquiry on Darfur, authorized by UN Security Council Resolution 1564 of 2004, issued a report to the Secretary-General stating that \"the Government of Sudan has not pursued a policy of genocide.\" Nevertheless, the Commission cautioned that \"The conclusion that no genocidal policy has been pursued and implemented in Darfur by the Government authorities, directly or through the militias under their control, should not be taken in any way as detracting from the gravity of the crimes perpetrated in that region. International offences such as the crimes against humanity and war crimes that have been committed in Darfur may be no less serious and heinous than genocide.\"", "title": "International prosecution" }, { "paragraph_id": 69, "text": "In March 2005, the Security Council formally referred the situation in Darfur to the Prosecutor of the International Criminal Court, taking into account the Commission report but without mentioning any specific crimes. Two permanent members of the Security Council, the United States and China, abstained from the vote on the referral resolution. As of his fourth report to the Security Council, the Prosecutor has found \"reasonable grounds to believe that the individuals identified [in the UN Security Council Resolution 1593] have committed crimes against humanity and war crimes,\" but did not find sufficient evidence to prosecute for genocide.", "title": "International prosecution" }, { "paragraph_id": 70, "text": "In April 2007, the Judges of the ICC issued arrest warrants against the former Minister of State for the Interior, Ahmad Harun, and a Militia Janjaweed leader, Ali Kushayb, for crimes against humanity and war crimes.", "title": "International prosecution" }, { "paragraph_id": 71, "text": "On 14 July 2008, prosecutors at the International Criminal Court (ICC), filed ten charges of war crimes against Sudan's President Omar al-Bashir: three counts of genocide, five of crimes against humanity and two of murder. The ICC's prosecutors claimed that al-Bashir \"masterminded and implemented a plan to destroy in substantial part\" three tribal groups in Darfur because of their ethnicity.", "title": "International prosecution" }, { "paragraph_id": 72, "text": "On 4 March 2009, the ICC issued a warrant of arrest for Omar Al Bashir, President of Sudan as the ICC Pre-Trial Chamber I concluded that his position as head of state does not grant him immunity against prosecution before the ICC. The warrant was for war crimes and crimes against humanity. It did not include the crime of genocide because the majority of the Chamber did not find that the prosecutors had provided enough evidence to include such a charge. Later the decision was changed by the Appeals Panel and after issuing the second decision, charges against Omar al-Bashir include three counts of genocide.", "title": "International prosecution" }, { "paragraph_id": 73, "text": "The concept of genocide can be applied to historical events. The preamble of the CPPCG states that \"at all periods of history genocide has inflicted great losses on humanity.\" Revisionist attempts to challenge or affirm claims of genocide are illegal in some countries. Several European countries ban the denial of the Holocaust and the denial of the Armenian genocide, while in Turkey referring to the Armenian genocide, Greek genocide, and Sayfo, and to the period of mass starvation during the Great Famine of Mount Lebanon affecting Maronites, as genocides may be prosecuted under Article 301.", "title": "Examples" }, { "paragraph_id": 74, "text": "Historian William Rubinstein argues that the origin of 20th-century genocides can be traced back to the collapse of the elite structure and normal modes of government in parts of Europe following World War I, commenting:", "title": "Examples" }, { "paragraph_id": 75, "text": "The 'Age of Totalitarianism' included nearly all of the infamous examples of genocide in modern history, headed by the Jewish Holocaust, but also comprising the mass murders and purges of the Communist world, other mass killings carried out by Nazi Germany and its allies, and also the Armenian genocide of 1915. All these slaughters, it is argued here, had a common origin, the collapse of the elite structure and normal modes of government of much of central, eastern and southern Europe as a result of the First World War, without which surely neither Communism nor Fascism would have existed except in the minds of unknown agitators and crackpots.", "title": "Examples" }, { "paragraph_id": 76, "text": "According to Esther Brito, the way in which states commit genocide has evolved in the 21st century and genocidal campaigns have attempted to circumvent international systems designed to prevent, mitigate, and prosecute genocide by adjusting the duration, intensity, and methodology of the genocide. Brito states that modern genocides often happen on a much longer time scale than traditional ones - taking years or decades - and that instead of traditional methods of beatings and executions less directly fatal tactics are used but with the same effect. Brito described the contemporary plights of the Rohingya and Uyghurs as examples of this newer form of genocide. The abuses against West Papuans in Indonesia have also been described as a slow-motion genocide.", "title": "Examples" }, { "paragraph_id": 77, "text": "Study of the risk factors and prevention of genocide was underway before the 1982 International Conference on the Holocaust and Genocide during which multiple papers on the subject were presented. In 1996 Gregory Stanton, the president of Genocide Watch, presented a briefing paper called \"The 8 Stages of Genocide\" at the United States Department of State. In it he suggested that genocide develops in eight stages that are \"predictable but not inexorable\".", "title": "Stages, risk factors, and prevention" }, { "paragraph_id": 78, "text": "The Stanton paper was presented to the State Department, shortly after the Rwandan Genocide and much of its analysis are based on why that genocide occurred. The preventative measures suggested, given the briefing paper's original target audience, were those that the United States could implement directly or indirectly by using its influence on other governments. In 2012, he added two additional stages, discrimination and persecution.", "title": "Stages, risk factors, and prevention" }, { "paragraph_id": 79, "text": "Other authors have focused on the structural conditions leading up to genocide and the psychological and social processes that create an evolution toward genocide. Ervin Staub showed that economic deterioration and political confusion and disorganization were starting points of increasing discrimination and violence in many instances of genocides and mass killing. They lead to scapegoating a group and ideologies that identified that group as an enemy. A history of devaluation of the group that becomes the victim, past violence against the group that becomes the perpetrator leading to psychological wounds, authoritarian cultures and political systems, and the passivity of internal and external witnesses (bystanders) all contribute to the probability that the violence develops into genocide. Intense conflict between groups that is unresolved, becomes intractable and violent can also lead to genocide. In 2006, Dirk Moses criticised genocide studies due to its \"rather poor record of ending genocide\".", "title": "Stages, risk factors, and prevention" } ]
Genocide is the intentional destruction of a people in whole or in part. In 1948, the United Nations Genocide Convention defined genocide as any of five "acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group". These five acts were: killing members of the group, causing them serious bodily or mental harm, imposing living conditions intended to destroy the group, preventing births, and forcibly transferring children out of the group. Victims are targeted because of their real or perceived membership of a group, not randomly. The Political Instability Task Force estimated that 43 genocides occurred between 1956 and 2016, resulting in about 50 million deaths. The UNHCR estimated that a further 50 million had been displaced by such episodes of violence up to 2008. Genocide, especially large-scale genocide, is widely considered to signify the epitome of human evil. As a label, it is contentious because it is moralizing, and has been used as a type of moral category since the late 1990s.
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https://en.wikipedia.org/wiki/Genocide
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George Clinton
George Clinton commonly refers to: George Clinton may also refer to:
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George Clinton commonly refers to: George Clinton, American funk musician George Clinton (1739–1812), 4th Vice President of the United States and 1st Governor of New York George Clinton may also refer to:
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https://en.wikipedia.org/wiki/George_Clinton
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Germanic peoples
The Germanic peoples were historical groups of people that once occupied Northwestern and Central Europe and Scandinavia during antiquity and into the early Middle Ages. Since the 19th century, they have traditionally been defined by the use of ancient and early medieval Germanic languages and are thus equated at least approximately with Germanic-speaking peoples, although different academic disciplines have their own definitions of what makes someone or something "Germanic". The Romans named the area belonging to North-Central Europe in which Germanic peoples lived Germania, stretching east to west between the Vistula and Rhine rivers and north to south from southern Scandinavia to the upper Danube. In discussions of the Roman period, the Germanic peoples are sometimes referred to as Germani or ancient Germans, although many scholars consider the second term problematic since it suggests identity with present-day Germans. The very concept of "Germanic peoples" has become the subject of controversy among contemporary scholars. Some scholars call for its total abandonment as a modern construct since lumping "Germanic peoples" together implies a common group identity for which there is little evidence. Other scholars have defended the term's continued use and argue that a common Germanic language allows one to speak of "Germanic peoples", regardless of whether these ancient and medieval peoples saw themselves as having a common identity. While several historians and archaeologists continue to use the term "Germanic peoples" to refer to historical people groups from the 1st to 4th centuries CE, the term is no longer used by most historians and archaeologists for the period around the Fall of the Roman Empire and the Early Middle Ages. Scholars generally agree that it is possible to refer to Germanic-speaking peoples after 500 BCE. Archaeologists usually connect the early Germanic peoples with the Jastorf culture of the Pre-Roman Iron Age, which is found in Denmark (southern Scandinavia) and northern Germany from the 6th to 1st centuries BCE, around the same time that the First Germanic Consonant Shift is theorized to have occurred; this sound change led to recognizably Germanic languages. From northern Germany and southern Scandinavia, the Germanic peoples expanded south, east, and west, coming into contact with the Celtic, Iranic, Baltic, and Slavic peoples. Roman authors first described Germanic peoples near the Rhine in the 1st century BCE, while the Roman Empire was establishing its dominance in that region. Under Emperor Augustus (27 BCE–14 CE), the Romans attempted to conquer a large area of Germania, but they withdrew after a major Roman defeat at the Battle of the Teutoburg Forest in 9 CE. The Romans continued to control the Germanic frontier closely by meddling in its politics, and they constructed a long fortified border, the Limes Germanicus. From 166 to 180 CE, Rome was embroiled in a conflict against the Germanic Marcomanni, Quadi, and many other peoples known as the Marcomannic Wars. The wars reordered the Germanic frontier, and afterwards, new Germanic peoples appear for the first time in the historical record, such as the Franks, Goths, Saxons, and Alemanni. During the Migration Period (375–568), various Germanic peoples entered the Roman Empire and eventually took control of parts of it and established their own independent kingdoms after the collapse of Western Roman rule. The most powerful of them were the Franks, who conquered many of the others. Eventually, the Frankish king Charlemagne claimed the title of Holy Roman Emperor for himself in 800. Archaeological finds suggest that Roman-era sources portrayed the Germanic way of life as more primitive than it actually was. Instead, archaeologists have unveiled evidence of a complex society and economy throughout Germania. Germanic-speaking peoples originally shared similar religious practices. Denoted by the term Germanic paganism, they varied throughout the territory occupied by Germanic-speaking peoples. Over the course of Late Antiquity, most continental Germanic peoples and the Anglo-Saxons of Britain converted to Christianity, but the Saxons and Scandinavians converted only much later. The Germanic peoples shared a native script from around the first century or before, the runes, which was gradually replaced with the Latin script, although runes continued to be used for specialized purposes thereafter. Traditionally, the Germanic peoples have been seen as possessing a law dominated by the concepts of feuding and blood compensation. The precise details, nature and origin of what is still normally called "Germanic law" are now controversial. Roman sources state that the Germanic peoples made decisions in a popular assembly (the thing) but that they also had kings and war leaders. The ancient Germanic-speaking peoples probably shared a common poetic tradition, alliterative verse, and later Germanic peoples also shared legends originating in the Migration Period. The publishing of Tacitus's Germania by humanist scholars in the 1400s greatly influenced the emerging idea of "Germanic peoples". Later scholars of the Romantic period, such as Jacob and Wilhelm Grimm, developed several theories about the nature of the Germanic peoples that were highly influenced by romantic nationalism. For those scholars, the "Germanic" and modern "German" were identical. Ideas about the early Germans were also highly influential among and were influenced and co-opted by the nationalist and racist völkisch movement and later by the Nazis, which led in the second half of the 20th century to a backlash against many aspects of earlier scholarship. The etymology of the Latin word Germani, from which Latin Germania and English Germanic are derived, is unknown, although several proposals have been put forward. Even the language from which it derives is a subject of dispute, with proposals of Germanic, Celtic, and Latin, and Illyrian origins. Herwig Wolfram, for example, thinks Germani must be Gaulish. The historian Wolfgang Pfeifer more or less concurs with Wolfram and surmises that the name Germani is likely of Celtic etymology and is related to the Old Irish word gair ('neighbours') or could be tied to the Celtic word for their war cries, gairm, which simplifies into 'the neighbours' or 'the screamers'. Regardless of its language of origin, the name was transmitted to the Romans via Celtic speakers. It is unclear that any people group ever referred to themselves as Germani. By late antiquity, only peoples near the Rhine, especially the Franks and sometimes the Alemanni, were called Germani by Latin or Greek writers. Germani subsequently ceased to be used as a name for any group of people and was revived as such only by the humanists in the 16th century. Previously, scholars during the Carolingian period (8th–11th centuries) had already begun using Germania and Germanicus in a territorial sense to refer to East Francia. In modern English, the adjective Germanic is distinct from German, which is generally used when referring to modern Germans only. Germanic relates to the ancient Germani or the broader Germanic group. In modern German, the ancient Germani are referred to as Germanen and Germania as Germanien, as distinct from modern Germans (Deutsche) and modern Germany (Deutschland). The direct equivalents in English are, however, Germans for Germani and Germany for Germania although the Latin Germania is also used. To avoid ambiguity, the Germani may instead be called "ancient Germans" or Germani by using the Latin term in English. The modern definition of Germanic peoples developed in the 19th century, when the term Germanic was linked to the newly identified Germanic language family. Linguistics provided a new way of defining the Germanic peoples, which came to be used in historiography and archaeology. While Roman authors did not consistently exclude Celtic-speaking people or have a term corresponding to Germanic-speaking peoples, this new definition—which used the Germanic language as the main criterion—presented the Germani as a people or nation (Volk) with a stable group identity linked to language. As a result, some scholars treat the Germani (Latin) or Germanoi (Greek) of Roman-era sources as non-Germanic if they seemingly spoke non-Germanic languages. For clarity, Germanic peoples, when defined as "speakers of a Germanic language", are sometimes referred to as "Germanic-speaking peoples". Today, the term "Germanic" is widely applied to "phenomena including identities, social, cultural or political groups, to material cultural artefacts, languages and texts, and even specific chemical sequences found in human DNA". Several scholars continue to use the term to refer to a culture existing between the 1st to 4th centuries CE, but most historians and archaeologists researching Late Antiquity and the Early Middle Ages no longer use it. Apart from the designation of a language family (i.e., "Germanic languages"), the application of the term "Germanic" has become controversial in scholarship since 1990, especially among archaeologists and historians. Scholars have increasingly questioned the notion of ethnically defined people groups (Völker) as stable basic actors of history. The connection of archaeological assemblages to ethnicity has also been increasingly questioned. This has resulted in different disciplines developing different definitions of "Germanic". Beginning with the work of the "Toronto School" around Walter Goffart, various scholars have denied that anything such as a common Germanic ethnic identity ever existed. Such scholars argue that most ideas about Germanic culture are taken from far later epochs and projected backwards to antiquity. Historians of the Vienna School, such as Walter Pohl, have also called for the term to be avoided or used with careful explanation, and argued that there is little evidence for a common Germanic identity. The Anglo-Saxonist Leonard Neidorf writes that historians of the continental-European Germanic peoples of the 5th and 6th centuries are "in agreement" that there was no pan-Germanic identity or solidarity. Whether a scholar favors the existence of a common Germanic identity or not is often related to their position on the nature of the end of the Roman Empire. Defenders of continued use of the term Germanic argue that the speakers of Germanic languages can be identified as Germanic people by language regardless of how they saw themselves. Linguists and philologists have generally reacted skeptically to claims that there was no Germanic identity or cultural unity, and they may view Germanic simply as a long-established and convenient term. Some archaeologists have also argued in favor of retaining the term Germanic due to its broad recognizability. Archaeologist Heiko Steuer defines his own work on the Germani in geographical terms (covering Germania), rather than in ethnic terms. He nevertheless argues for some sense of shared identity between the Germani, noting the use of a common language, a common runic script, various common objects of material culture such as bracteates and gullgubber (small gold objects) and the confrontation with Rome as things that could cause a sense of shared "Germanic" culture. Despite being cautious of the use of Germanic to refer to peoples, Sebastian Brather, Wilhelm Heizmann and Steffen Patzold nevertheless refer to further commonalities such as the widely attested worship of deities such as Odin, Thor and Frigg, and a shared legendary tradition. The first author to describe the Germani as a large category of peoples distinct from the Gauls and Scythians was Julius Caesar, writing around 55 BCE during his governorship of Gaul. In Caesar's account, the clearest defining characteristic of the Germani people was that they lived east of the Rhine, opposite Gaul on the west side. Caesar sought to explain both why his legions stopped at the Rhine and also why the Germani were more dangerous than the Gauls and a constant threat to the empire. He also classified the Cimbri and Teutons, peoples who had previously invaded Italy, as Germani, and examples of this threat to Rome. Although Caesar described the Rhine as the border between Germani and Celts, he also describes a group of people he identifies as Germani who live on the west bank of the Rhine in the northeast of Gaul, the Germani cisrhenani. It is unclear if these Germani were actually Germanic speakers. According to the Roman historian Tacitus in his Germania (c. 98 CE), it was among this group, specifically the Tungri, that the name Germani first arose, and was spread to further groups. Tacitus continues to mention Germanic tribes on the west bank of the Rhine in the period of the early Empire. Caesar's division of the Germani from the Celts was not taken up by most writers in Greek. Caesar and authors following him regarded Germania as stretching east of the Rhine for an indeterminate distance, bounded by the Baltic Sea and the Hercynian Forest. Pliny the Elder and Tacitus placed the eastern border at the Vistula. The Upper Danube served as a southern border. Between there and the Vistula Tacitus sketched an unclear boundary, describing Germania as separated in the south and east from the Dacians and the Sarmatians by mutual fear or mountains. This undefined eastern border is related to a lack of stable frontiers in this area such as were maintained by Roman armies along the Rhine and Danube. The geographer Ptolemy (2nd century CE) applied the name Germania magna ("Greater Germania", Greek: Γερμανία Μεγάλη) to this area, contrasting it with the Roman provinces of Germania Prima and Germania Secunda (on the west bank of the Rhine). In modern scholarship, Germania magna is sometimes also called Germania libera ("free Germania"), a name coined by Jacob Grimm around 1835. Caesar and, following him, Tacitus, depicted the Germani as sharing elements of a common culture. A small number of passages by Tacitus and other Roman authors (Caesar, Suetonius) mention Germanic tribes or individuals speaking a language distinct from Gaulish. For Tacitus (Germania 43, 45, 46), language was a characteristic, but not defining feature of the Germanic peoples. Many of the ascribed ethnic characteristics of the Germani represented them as typically "barbarian", including the possession of stereotypical vices such as "wildness" and of virtues such as chastity. Tacitus was at times unsure whether a people were Germanic or not, expressing his uncertainty about the Bastarnae, who he says looked like Sarmatians but spoke like the Germani, about the Osi and the Cotini, and about the Aesti, who were like Suebi but spoke a different language. When defining the Germani ancient authors did not differentiate consistently between a territorial definition ("those living in Germania") and an ethnic definition ("having Germanic ethnic characteristics"), although the two definitions did not always align. The Romans did not regard the eastern Germanic speakers such as Goths, Gepids, and Vandals as Germani, but rather connected them with other non-Germanic-speaking peoples such as the Huns, Sarmatians, and Alans. Romans described these peoples, including those who did not speak a Germanic language, as "Gothic people" (gentes Gothicae) and most often classified them as "Scythians". The writer Procopius, describing the Ostrogoths, Visigoths, Vandals, Alans, and Gepids, derived the Gothic peoples from the ancient Getae and described them as sharing similar customs, beliefs, and a common language. Several ancient sources list subdivisions of the Germanic tribes. Writing in the first century CE, Pliny the Elder lists five Germanic subgroups: the Vandili, the Inguaeones, the Istuaeones (living near the Rhine), the Hermiones (in the Germanic interior), and the Peucini Basternae (living on the lower Danube near the Dacians). In chapter 2 of the Germania, written about a half-century later, Tacitus lists only three subgroups: the Ingvaeones (near the sea), the Hermiones (in the interior of Germania), and the Istvaeones (the remainder of the tribes); Tacitus says these groups each claimed descent from the god Mannus, son of Tuisto. Tacitus also mentions a second tradition that there were four sons of either Mannus or Tuisto from whom the groups of the Marsi, Gambrivi, Suebi, and Vandili claim descent. The Hermiones are also mentioned by Pomponius Mela, but otherwise, these divisions do not appear in other ancient works on the Germani. There are a number of inconsistencies in the listing of Germanic subgroups by Tacitus and Pliny. While both Tacitus and Pliny mention some Scandinavian tribes, they are not integrated into the subdivisions. While Pliny lists the Suebi as part of the Hermiones, Tacitus treats them as a separate group. Additionally, Tacitus's description of a group of tribes as united by the cult of Nerthus (Germania 40) as well as the cult of the Alcis controlled by the Nahanarvali (Germania 43) and Tacitus's account of the origin myth of the Semnones (Germania 39) all suggest different subdivisions than the three mentioned in Germania chapter 2. The subdivisions found in Pliny and Tacitus have been very influential for scholarship on Germanic history and language up until recent times. However, outside of Tacitus and Pliny there are no other textual indications that these groups were important. The subgroups mentioned by Tacitus are not used by him elsewhere in his work, contradict other parts of his work, and cannot be reconciled with Pliny, who is equally inconsistent. Additionally, there is no linguistic or archaeological evidence for these subgroups. New archaeological finds have tended to show that the boundaries between Germanic peoples were very permeable, and scholars now assume that migration and the collapse and formation of cultural units were constant occurrences within Germania. Nevertheless, various aspects such as the alliteration of many of the tribal names in Tacitus's account and the name of Mannus himself suggest that the descent from Mannus was an authentic Germanic tradition. All Germanic languages derive from the Proto-Indo-European language (PIE), which is generally thought to have been spoken between 4500 and 2500 BCE. The ancestor of Germanic languages is referred to as Proto- or Common Germanic, and likely represented a group of mutually intelligible dialects. They share distinctive characteristics which set them apart from other Indo-European sub-families of languages, such as Grimm's and Verner's law, the conservation of the PIE ablaut system in the Germanic verb system (notably in strong verbs), or the merger of the vowels a and o qualities (ə, a, o > a; ā, ō > ō). During the Pre-Germanic linguistic period (2500–500 BCE), the proto-language was almost certainly influenced by an unknown non-Indo-European language, still noticeable in the Germanic phonology and lexicon. Although Proto-Germanic is reconstructed without dialects via the comparative method, it is almost certain that it never was a uniform proto-language. The late Jastorf culture occupied so much territory that it is unlikely that Germanic populations spoke a single dialect, and traces of early linguistic varieties have been highlighted by scholars. Sister dialects of Proto-Germanic itself certainly existed, as evidenced by the absence of the First Germanic Sound Shift (Grimm's law) in some "Para-Germanic" recorded proper names, and the reconstructed Proto-Germanic language was only one among several dialects spoken at that time by peoples identified as "Germanic" by Roman sources or archeological data. Although Roman sources name various Germanic tribes such as Suevi, Alemanni, Bauivari, etc., it is unlikely that the members of these tribes all spoke the same dialect. Definite and comprehensive evidence of Germanic lexical units only occurred after Caesar's conquest of Gaul in the 1st century BCE, after which contacts with Proto-Germanic speakers began to intensify. The Alcis, a pair of brother gods worshipped by the Nahanarvali, are given by Tacitus as a Latinized form of *alhiz (a kind of 'stag'), and the word sapo ('hair dye') is certainly borrowed from Proto-Germanic *saipwōn- (English soap), as evidenced by the parallel Finnish loanword saipio. The name of the framea, described by Tacitus as a short spear carried by Germanic warriors, most likely derives from the compound *fram-ij-an- ('forward-going one'), as suggested by comparable semantical structures found in early runes (e.g., raun-ij-az 'tester', on a lancehead) and linguistic cognates attested in the later Old Norse, Old Saxon and Old High German languages: fremja, fremmian and fremmen all mean 'to carry out'. In the absence of earlier evidence, it must be assumed that Proto-Germanic speakers living in Germania were members of preliterate societies. The only pre-Roman inscriptions that could be interpreted as Proto-Germanic, written in the Etruscan alphabet, have not been found in Germania but rather in the Venetic region. The inscription harikastiteiva\\\ip, engraved on the Negau helmet in the 3rd–2nd centuries BCE, possibly by a Germanic-speaking warrior involved in combat in northern Italy, has been interpreted by some scholars as Harigasti Teiwǣ (*harja-gastiz 'army-guest' + *teiwaz 'god, deity'), which could be an invocation to a war-god or a mark of ownership engraved by its possessor. The inscription Fariarix (*farjōn- 'ferry' + *rīk- 'ruler') carved on tetradrachms found in Bratislava (mid-1st c. BCE) may indicate the Germanic name of a Celtic ruler. By the time Germanic speakers entered written history, their linguistic territory had stretched farther south, since a Germanic dialect continuum (where neighbouring language varieties diverged only slightly between each other, but remote dialects were not necessarily mutually intelligible due to accumulated differences over the distance) covered a region roughly located between the Rhine, the Vistula, the Danube, and southern Scandinavia during the first two centuries of the Common Era. East Germanic speakers dwelled on the Baltic sea coasts and islands, while speakers of the Northwestern dialects occupied territories in present-day Denmark and bordering parts of Germany at the earliest date when they can be identified. In the 2nd and 3rd centuries CE, migrations of East Germanic gentes from the Baltic Sea coast southeastwards into the hinterland led to their separation from the dialect continuum. By the late 3rd century CE, linguistic divergences like the West Germanic loss of the final consonant -z had already occurred within the "residual" Northwest dialect continuum. The latter definitely ended after the 5th- and 6th-century migrations of Angles, Jutes and part of the Saxon tribes towards modern-day England. The Germanic languages are traditionally divided between East, North and West Germanic branches. The modern prevailing view is that North and West Germanic were also encompassed in a larger subgroup called Northwest Germanic. Further internal classifications are still debated among scholars, as it is unclear whether the internal features shared by several branches are due to early common innovations or to the later diffusion of local dialectal innovations. The Germanic-speaking peoples speak an Indo-European language. The leading theory for the origin of Germanic languages, suggested by archaeological, linguistic and genetic evidence, postulates a diffusion of Indo-European languages from the Pontic–Caspian steppe towards Northern Europe during the third millennium BCE, via linguistic contacts and migrations from the Corded Ware culture towards modern-day Denmark, resulting in cultural mixing with the earlier Funnelbeaker culture. The subsequent culture of the Nordic Bronze Age (c. 2000/1750-c. 500 BCE) shows definite cultural and population continuities with later Germanic peoples, and is often supposed to have been the culture in which the Germanic Parent Language, the predecessor of the Proto-Germanic language, developed. However, it is unclear whether these earlier peoples possessed any ethnic continuity with the later Germanic peoples. Generally, scholars agree that it is possible to speak of Germanic-speaking peoples after 500 BCE, although the first attestation of the name Germani is not until much later. Between around 500 BCE and the beginning of the common era, archeological and linguistic evidence suggest that the Urheimat ('original homeland') of the Proto-Germanic language, the ancestral idiom of all attested Germanic dialects, was primarily situated in the southern Jutland peninsula, from which Proto-Germanic speakers migrated towards bordering parts of Germany and along the sea-shores of the Baltic and the North Sea, an area corresponding to the extent of the late Jastorf culture. If the Jastorf Culture is the origin of the Germanic peoples, then the Scandinavian peninsula would have become Germanic either via migration or assimilation over the course of the same period. Alternatively, Hermann Ament [de] has stressed that two other archaeological groups must have belonged to the Germani, one on either side of the Lower Rhine and reaching to the Weser, and another in Jutland and southern Scandinavia. These groups would thus show a "polycentric origin" for the Germanic peoples. The neighboring Przeworsk culture in modern Poland is thought to possibly reflect a Germanic and Slavic component. The identification of the Jastorf culture with the Germani has been criticized by Sebastian Brather, who notes that it seems to be missing areas such as southern Scandinavia and the Rhine-Weser area, which linguists argue to have been Germanic, while also not according with the Roman era definition of Germani, which included Celtic-speaking peoples further south and west. A category of evidence used to locate the Proto-Germanic homeland is founded on traces of early linguistic contacts with neighbouring languages. Germanic loanwords in the Finnic and Sámi languages have preserved archaic forms (e.g. Finnic kuningas, from Proto-Germanic *kuningaz 'king'; rengas, from *hringaz 'ring'; etc.), with the older loan layers possibly dating back to an earlier period of intense contacts between pre-Germanic and Finno-Permic (i.e. Finno-Samic) speakers. Shared lexical innovations between Celtic and Germanic languages, concentrated in certain semantic domains such as religion and warfare, indicates intensive contacts between the Germani and Celtic peoples, usually identified with the archaeological La Tène culture, found in southern Germany and the modern Czech Republic. Early contacts probably occurred during the Pre-Germanic and Pre-Celtic periods, dated to the 2nd millennium BCE, and the Celts appear to have had a large amount of influence on Germanic culture from up until the first century CE, which led to a high degree of Celtic-Germanic shared material culture and social organization. Some evidence of linguistic convergence between Germanic and Italic languages, whose Urheimat is supposed to have been situated north of the Alps before the 1st millennium BCE, have also been highlighted by scholars. Shared changes in their grammars also suggest early contacts between Germanic and Balto-Slavic languages; however, some of these innovations are shared with Baltic only, which may point to linguistic contacts during a relatively late period, at any rate after the initial breakup of Balto-Slavic into Baltic and Slavic languages, with the similarities to Slavic being seen as remnants of Indo-European archaisms or the result of secondary contacts. According to some authors the Bastarnae or Peucini were the first Germani to be encountered by the Greco-Roman world and thus to be mentioned in historical records. They appear in historical sources going back as far as the 3rd century BCE through the 4th century CE. Another eastern people known from about 200 BCE, and sometimes believed to be Germanic-speaking, are the Sciri (Greek: Skiroi), who are recorded threatening the city of Olbia on the Black Sea. Late in the 2nd century BCE, Roman and Greek sources recount the migrations of the Cimbri, Teutones and Ambrones whom Caesar later classified as Germanic. The movements of these groups through parts of Gaul, Italy and Hispania resulted in the Cimbrian War (113–101 BCE) against the Romans, in which the Teutons and Cimbri were victorious over several Roman armies but were ultimately defeated. The first century BCE was a time of the expansion of Germanic-speaking peoples at the expense of Celtic-speaking polities in modern southern Germany and the Czech Republic. In 63 BCE, Ariovistus, king of the Suevi and a host of other peoples, led a force across the Rhine into Gaul to aid the Sequani against their enemies the Aedui. The Suevi were victorious at the Battle of Magetobriga, and initially were considered an ally of Rome. The Aedui were Roman allies and Julius Caesar, the governor of the Roman province of Transalpine Gaul in 58 BCE, went to war with them, defeating Ariovistus at the Battle of Vosges. In 55 BCE, Caesar crossed the Rhine into Germania, massacring a large migrating group of Tencteri and Usipetes who had crossed the Rhine from the east. Throughout the reign of Augustus—from 27 BCE until 14 CE—the Roman empire expanded into Gaul, with the Rhine as a border. Starting in 13 BCE, there were Roman campaigns across the Rhine for a 28-year period. First came the pacification of the Usipetes, Sicambri, and Frisians near the Rhine, then attacks increased further from the Rhine, on the Chauci, Cherusci, Chatti and Suevi (including the Marcomanni). These campaigns eventually reached and even crossed the Elbe, and in 5 CE Tiberius was able to show strength by having a Roman fleet enter the Elbe and meet the legions in the heart of Germania. Once Tiberius subdued the Germanic people between the Rhine and the Elbe, the region at least up to Weser—and possibly up to the Elbe—was made the Roman province Germania and provided soldiers to the Roman army. However, within this period two Germanic kings formed larger alliances. Both of them had spent some of their youth in Rome; the first of them was Maroboduus of the Marcomanni, who had led his people away from the Roman activities into Bohemia, which was defended by forests and mountains, and had formed alliances with other peoples. In 6 CE, Rome planned an attack against him but the campaign was cut short when forces were needed for the Illyrian revolt in the Balkans. Just three years later (9 CE), the second of these Germanic figures, Arminius of the Cherusci—initially an ally of Rome—drew a large Roman force into an ambush in northern Germany, and destroyed the three legions of Publius Quinctilius Varus at the Battle of the Teutoburg Forest. Marboduus and Arminius went to war with each other in 17 CE; Arminius was victorious and Marboduus was forced to flee to the Romans. Following the Roman defeat at the Teutoburg Forest, Rome gave up on the possibility of fully integrating this region into the empire. Rome launched successful campaigns across the Rhine between 14 and 16 CE under Tiberius and Germanicus, but the effort of integrating Germania now seemed to outweigh its benefits. In the reign of Augustus's successor, Tiberius, it became state policy to expand the empire no further than the frontier based roughly upon the Rhine and Danube, recommendations that were specified in the will of Augustus and read aloud by Tiberius himself. Roman intervention in Germania led to a shifting and unstable political situation, in which pro- and anti-Roman parties vied for power. Arminius was murdered in 21 CE by his fellow Germanic tribesmen, due in part to these tensions and for his attempt to claim supreme kingly power for himself. In the wake of Arminius's death, Roman diplomats sought to keep the Germanic peoples divided and fractious. Rome established relationships with individual Germanic kings that are often discussed as being similar to client states; however, the situation on the border was always unstable, with rebellions by the Frisians in 28 CE, and attacks by the Chauci and Chatti in the 60s CE. The most serious threat to the Roman order was the Revolt of the Batavi in 69 CE, during the civil wars following the death of Nero known as the Year of the Four Emperors. The Batavi had long served as auxiliary troops in the Roman army as well as in the imperial bodyguard as the so-called Numerus Batavorum, often called the Germanic bodyguard. The uprising was led by Gaius Julius Civilis, a member of the Batavian royal family and Roman military officer, and attracted a large coalition of people both inside and outside of the Roman territory. The revolt ended following several defeats, with Civilis claiming to have only supported the imperial claims of Vespasian, who was victorious in the civil war. The century after the Batavian Revolt saw mostly peace between the Germanic peoples and Rome. In 83 CE, Emperor Domitian of the Flavian dynasty attacked the Chatti north of Mainz (Mogontiacum). This war would last until 85 CE. Following the end of the war with the Chatti, Domitian reduced the number of Roman soldiers on the upper Rhine and shifted the Roman military to guarding the Danube frontier, beginning the construction of the limes, the longest fortified border in the empire. The period afterwards was peaceful enough that the emperor Trajan reduced the number of soldiers on the frontier. According to Edward James, the Romans appear to have reserved the right to choose rulers among the barbarians on the frontier. Following sixty years of quiet on the frontier, 166 CE saw a major incursion of peoples from north of the Danube during the reign of Marcus Aurelius, beginning the Marcomannic Wars. By 168 (during the Antonine plague), barbarian hosts consisting of Marcomanni, Quadi, and Sarmatian Iazyges, attacked and pushed their way to Italy. They advanced as far as Upper Italy, destroyed Opitergium/Oderzo and besieged Aquileia. The Romans had finished the war by 180, through a combination of Roman military victories, the resettling of some peoples on Roman territory, and by making alliances with others. Marcus Aurelius's successor Commodus chose not to permanently occupy any territory conquered north of the Danube, and the following decades saw an increase in the defenses at the limes. The Romans renewed their right to choose the kings of the Marcomanni and Quadi, and Commodus forbid them to hold assemblies unless a Roman centurion was present. The period after the Marconmannic Wars saw the emergence of peoples with new names along the Roman frontiers, which were probably formed by the merger of smaller groups. These new confederacies or peoples tended to border the Roman imperial frontier. Many ethnic names from earlier periods disappear. The Alamanni emerged along the upper Rhine and are mentioned in Roman sources from the third century onward. The Goths begin to be mentioned along the lower Danube, where they attacked the city of Histria in 238. The Franks are first mentioned occupying territory between the Rhine and Weser. The Lombards seem to have moved their center of power to the central Elbe. Groups such as the Alamanni, Goths, and Franks were not unified polities; they formed multiple, loosely associated groups, who often fought each other and some of whom sought Roman friendship. The Romans also begin to mention seaborne attacks by the Saxons, a term used generically in Latin for Germanic-speaking pirates. A system of defenses on both sides of the English Channel, the Saxon Shore, was established to deal with their raids. From 250 onward, the Gothic peoples formed the "single most potent threat to the northern frontier of Rome". In 250 CE a Gothic king Cniva led Goths with Bastarnae, Carpi, Vandals, and Taifali into the empire, laying siege to Philippopolis. He followed his victory there with another on the marshy terrain at Abrittus, a battle which cost the life of Roman emperor Decius. In 253/254, further attacks occurred reaching Thessalonica and possibly Thrace. In 267/268 there were large raids led by the Herules in 267/268, and a mixed group of Goths and Herules in 269/270. Gothic attacks were abruptly ended in the years after 270, after a Roman victory in which the Gothic king Cannabaudes was killed. The Roman limes largely collapsed in 259/260, during the Crisis of the Third Century (235–284), and Germanic raids penetrated as far as northern Italy. The limes on the Rhine and upper Danube was brought under control again in 270s, and by 300 the Romans had reestablished control over areas they had abandoned during the crisis. From the later third century onward, the Roman army relied increasingly on troops of Barbarian origin, often recruited from Germanic peoples, with some functioning as senior commanders in the Roman army. In the 4th century, warfare along the Rhine frontier between the Romans and Franks and Alemanni seems to have mostly consisted of campaigns of plunder, during which major battles were avoided. The Romans generally followed a policy of trying to prevent strong leaders from emerging among the barbarians, using treachery, kidnapping, and assassination, paying off rival tribes to attack them, or by supporting internal rivals. The Migration Period is traditionally cited by historians as beginning in 375 CE, under the assumption that the appearance of the Huns prompted the Visigoths to seek shelter within the Roman Empire in 376. The end of the migration period is usually set at 586 when the Lombards invaded Italy. During this time period, numerous barbarian groups invaded the Roman Empire and established new kingdoms within its boundaries. These Germanic migrations traditionally mark the transition between antiquity and the beginning of the early Middle Ages. The reasons for the migrations of the period are unclear, but scholars have proposed overpopulation, climate change, bad harvests, famines, and adventurousness as possible reasons. Migrations were probably carried out by relatively small groups rather than entire peoples. The Greuthungi, a Gothic group in modern Ukraine under the rule of Ermanaric, were among the first peoples attacked by the Huns, apparently facing Hunnic pressure for some years. Following Ermanaric's death, the Greuthungi's resistance broke and they moved toward the Dniester river. A second Gothic group, the Tervingi under King Athanaric, constructed a defensive earthwork against the Huns near the Dniester. However, these measures did not stop the Huns and the majority of the Tervingi abandoned Athanaric; they subsequently fled—accompanied by a contingent of Greuthungi—to the Danube in 376, seeking asylum in the Roman Empire. The emperor Valens chose only to admit the Tervingi, who were settled in the Roman provinces of Thrace and Moesia. Due to mistreatment by the Romans, the Tervingi revolted in 377, starting the Gothic War, joined by the Greuthungi. The Goths and their allies defeated the Romans first at Marcianople, then defeated and killed emperor Valens in the Battle of Adrianople in 378, destroying two-thirds of Valens' army. Following further fighting, peace was negotiated in 382, granting the Goths considerable autonomy within the Roman Empire. However, these Goths—who would be known as the Visigoths—revolted several more times, finally coming to be ruled by Alaric. In 397, the disunited eastern Empire submitted to some of his demands, possibly giving him control over Epirus. In the aftermath of the large-scale Gothic entries into the empire, the Franks and Alemanni became more secure in their positions in 395, when Stilicho, the barbarian generalissimo who held power in the western Empire, made agreements with them. In 401, Alaric invaded Italy, coming to an understanding with Stilicho in 404/5. This agreement allowed Stilicho to fight against the force of Radagaisus, who had crossed the Middle Danube in 405/6 and invaded Italy, only to be defeated outside Florence. That same year, a large force of Vandals, Suevi, Alans, and Burgundians crossed the Rhine, fighting the Franks but facing no Roman resistance. In 409, the Suevi, Vandals, and Alans crossing the Pyrenees into Spain, where they took possession of the northern part of the peninsula. The Burgundians seized the land around modern Speyer, Worms, and Strasbourg, territory that was recognized by the Roman Emperor Honorius. When Stilicho fell from power in 408, Alaric invaded Italy again and eventually sacked Rome in 410; Alaric died shortly thereafter. The Visigoths withdrew into Gaul where they faced a power struggle until the succession of Wallia in 415 and his son Theodoric I in 417/18. Following successful campaigns against them by the Roman emperor Flavius Constantius, the Visigoths were settled as Roman allies in Gaul between modern Toulouse and Bourdeaux. Other Goths, including those of Athanaric, continued to live outside the empire, with three groups crossing into the Roman territory after the Tervingi. The Huns gradually conquered Gothic groups north of the Danube, of which at least six are known, from 376 to 400. Those in Crimea may never have been conquered. The Gepids also formed an important Germanic people under Hunnic rule; the Huns had largely conquered them by 406. One Gothic group under Hunnic domination was ruled by the Amal dynasty, who would form the core of the Ostrogoths. The situation outside the Roman empire in 410s and 420s is poorly attested, but it is clear that the Huns continued to spread their influence onto the middle Danube. In 428, the Vandal leader Geiseric moved his forces across the strait of Gibraltar into north Africa. Within two years, they had conquered most of north Africa. By 434, following a renewed political crisis in Rome, the Rhine frontier had collapsed, and in order to restore it, the Roman magister militum Flavius Aetius engineered the destruction of the Burgundian kingdom in 435/436, possibly with Hunnic mercenaries, and launched several successful campaigns against the Visigoths. In 439, the Vandals conquered Carthage, which served as an excellent base for further raids throughout the Mediterranean and became the basis for the Vandal Kingdom. The loss of Carthage forced Aetius to make peace with the Visigoths in 442, effectively recognizing their independence within the boundaries of the empire. During the resulting peace, Aetius resettled the Burgundians in Sapaudia in southern Gaul. In the 430s, Aetius negotiated peace with the Suevi in Spain, leading to a practical loss of Roman control in the province. Despite the peace, the Suevi expanded their territory by conquering Mérida in 439 and Seville in 441. By 440, Attila and the Huns had come to rule a multi-ethnic empire north of the Danube; two of the most important peoples within this empire were the Gepids and the Goths. The Gepid king Ardaric came to power around 440 and participated in various Hunnic campaigns. In 450, the Huns interfered in a Frankish succession dispute, leading in 451 to an invasion of Gaul. Aetius, by uniting a coalition of Visigoths, part of the Franks, and others, was able to defeat the Hunnic army at the Battle of the Catalaunian Plains. In 453, Attila died unexpectedly, and an alliance led by Ardaric's Gepids rebelled against the rule of his sons, defeating them in the Battle of Nedao. Either before or after Attila's death, Valamer, a Gothic ruler of the Amal dynasty, seems to have consolidated power over a large part of the Goths in the Hunnic domain. For the next 20 years, the former subject peoples of the Huns would fight among each other for preeminence. The arrival of the Saxons in Britain is traditionally dated to 449, however, archaeology indicates they had begun arriving in Britain earlier. Latin sources used Saxon generically for seaborne raiders, meaning that not all of the invaders belonged to the continental Saxons. According to the British monk Gildas (c. 500 – c. 570), this group had been recruited to protect the Romano-British from the Picts, but had revolted. They quickly established themselves as rulers on the eastern part of the island. In 455, in the aftermath of the death of Aetius in 453 and the murder of emperor Valentinian III in 455, the Vandals invaded Italy and sacked Rome in 455. In 456, the Romans persuaded the Visigoths to fight the Suevi, who had broken their treaty with Rome. The Visigoths and a force of Burgundians and Franks defeated the Suevi at the Battle of Campus Paramus, reducing Suevi control to northwestern Spain. The Visigoths went on to conquer all of the Iberian Peninsula by 484 except a small part that remained under Suevian control. The Ostrogoths, led by Valamer's brother Thiudimer, invaded the Balkans in 473. Thiudimer's son Theodoric succeeded him in 476. In that same year, a barbarian commander in the Roman Italian army, Odoacer, mutinied and removed the final western Roman emperor, Romulus Augustulus. Odoacer ruled Italy for himself, largely continuing the policies of Roman imperial rule. He destroyed the Kingdom of the Rugians, in modern Austria, in 487/488. Theodoric, meanwhile, successfully extorted the Eastern Empire through a series of campaigns in the Balkans. The eastern emperor Zeno agreed to send Theodoric to Italy in 487/8. After a successful invasion, Theodoric killed and replaced Odoacer in 493, founding a new Ostrogothic kingdom. Theodoric died in 526, amid increasing tensions with the eastern empire. Toward the end of the migration period, in the early 500s, Roman sources portray a completely changed ethnic landscape outside of the empire: the Marcomanni and Quadi disappeared, as had the Vandals. Instead, the Thuringians, Rugians, Sciri, Herules, Goths, and Gepids are mentioned as occupying the Danube frontier. From the mid-5th century onward, the Alamanni had greatly expanded their territory in all directions and launched numerous raids into Gaul. The territory under the Frankish influence had grown to encompass northern Gaul and Germania to the Elbe. The Frankish king Clovis I united the various Frankish groups in 490s, and conquered the Alamanni by 506. From the 490s onward, Clovis waged wars against the Visigoths, defeating them in 507 and taking control of most of Gaul. Clovis's heirs conquered the Thuringians by 530 and the Burgundians by 532. The continental Saxons, composed of many subgroups, were made tributary to the Franks, as were the Frisians, who faced an attack by the Danes under Hygelac in 533. The Vandal and Ostrogothic kingdoms were destroyed in 534 and 555 respectively by the Eastern Roman (Byzantine) empire under Justinian. Around 500, a new ethnic identity appears in modern southern Germany, the Baiuvarii (Bavarians), under the patronage of Theodoric's Ostrogothic kingdom and then of the Franks. The Lombards, moving out of Bohemia, destroyed the kingdom of the Heruli in Pannonia in 510. In 568, after destroying the Gepid kingdom, the last Germanic kingdom in the Carpathian basin, the Lombards under Alboin invaded northern Italy, eventually conquering most of it. This invasion has traditionally been regarded as the end of the migration period. The eastern part of Germania, formerly inhabited by the Goths, Gepids, Vandals, and Rugians, was gradually Slavicized, a process enabled by the invasion of the nomadic Avars. Merovingian Frankia became divided into three subkingdoms: Austrasia in the east around the Rhine and Meuse, Neustria in the west around Paris, and Burgundy in the southeast around Chalon-sur-Saône. The Franks ruled a multilingual and multi-ethnic kingdom, divided between a mostly Romance-speaking West and a mostly Germanic-speaking east, that integrated former Roman elites but remained centered on a Frankish ethnic identity. In 687, the Pippinids came to control the Merovingian rulers as mayors of the palace in Neustria. Under their direction, the subkingdoms of Frankia were reunited. Following the mayoralty of Charles Martel, the Pippinids replaced the Merovingians as kings in 751, when Charles's son Pepin the Short became king and founded the Carolingian dynasty. His son, Charlemagne, would go on to conquer the Lombards, Saxons, and Bavarians. Charlemagne was crowned Roman emperor in 800 and regarded his residence of Aachen as the new Rome. Following their invasion in 568, the Lombards quickly conquered larger parts of the Italian peninsula. From 574 to 584, a period without a single Lombard ruler, the Lombards nearly collapsed, until a more centralized Lombard polity emerged under King Agilulf in 590. The invading Lombards only ever made up a very small percentage of the Italian population, however Lombard ethnic identity expanded to include people of both Roman and barbarian descent. Lombard power reached its peak during the reign of King Liutprand (712–744). After Liutprand's death, the Frankish King Pippin the Short invaded in 755, greatly weakening the kingdom. The Lombard kingdom was finally annexed by Charlemagne in 773. After a period of weak central authority, the Visigothic kingdom came under the rule of Liuvigild, who conquered the Kingdom of the Suebi in 585. A Visigothic identity that was distinct from the Romance-speaking population they ruled had disappeared by 700, with the removal of all legal differences between the two groups. In 711, a Muslim army landed at Grenada; the entire Visigothic kingdom would be conquered by the Umayyad Caliphate by 725. In what would become England, the Anglo-Saxons were divided into several competing kingdoms, the most important of which were Northumbria, Mercia, and Wessex. In the 7th century, Northumbria established overlordship over the other Anglo-Saxon Kingdoms, until Mercia revolted under Wulfhere in 658. Subsequently, Mercia would establish dominance until 825 with the death of King Cenwulf. Few written sources report on Vendel period Scandinavia from 400 to 700, however this period saw profound societal changes and the formation of early states with connections to the Anglo-Saxon and Frankish kingdoms. In 793, the first recorded Viking raid occurred at Lindisfarne, ushering in the Viking Age. Germanic paganism refers to the traditional, culturally significant religion of the Germanic-speaking peoples. It did not form a uniform religious system across Germanic-speaking Europe, but varied from place to place, people to people, and time to time. In many contact areas (e.g. Rhineland and eastern and northern Scandinavia), it was similar to neighboring religions such as those of the Slavs, Celts, and Finnic peoples. The term is sometimes applied as early as the Stone Age, Bronze Age, or the earlier Iron Age, but it is more generally restricted to the time period after the Germanic languages had become distinct from other Indo-European languages. From the first reports in Roman sources to the final conversion to Christianity, Germanic paganism thus covers a period of around one thousand years. Scholars are divided as to the degree of continuity between the religious practices of the earlier Germanic peoples and those attested in later Norse paganism and elsewhere: while some scholars argue that Tacitus, early medieval sources, and the Norse sources indicate religious continuity, other scholars are highly skeptical of such arguments. Like their neighbors and other historically related peoples, the ancient Germanic peoples venerated numerous indigenous deities. These deities are attested throughout literature authored by or written about Germanic-speaking peoples, including runic inscriptions, contemporary written accounts, and in folklore after Christianization. As an example, the second of the two Merseburg charms (two Old High German examples of alliterative verse from a manuscript dated to the ninth century) mentions six deities: Woden, Balder, Sinthgunt, Sunna, Frija, and Volla. With the exception of Sinthgunt, proposed cognates to these deities occur in other Germanic languages, such as Old English and Old Norse. By way of the comparative method, philologists are then able to reconstruct and propose early Germanic forms of these names from early Germanic mythology. Compare the following table: The structure of the magic formula in this charm has a long history prior to this attestation: it is first known to have occurred in Vedic India, where it occurs in the Atharvaveda, dated to around 500 BCE. Numerous other beings common to various groups of ancient Germanic peoples receive mention throughout the ancient Germanic record. One such type of entity, a variety of supernatural women, is also mentioned in the first of the two Merseburg Charms: Other widely attested entities from the North and West Germanic folklore include elves, dwarfs, and the mare. (For more discussion on these entities, see Proto-Germanic folklore.) The great majority of material describing Germanic mythology stems from the North Germanic record. The body of myths among the North Germanic-speaking peoples is known today as Norse mythology and is attested in numerous works, the most expansive of which are the Poetic Edda and the Prose Edda. While these texts were composed in the 13th century, they frequently quote genres of traditional alliterative verse known today as eddic poetry and skaldic poetry dating to the pre-Christian period. West Germanic mythology (that of speakers of, e.g., Old English and Old High German) is comparatively poorly attested. Notable texts include the Old Saxon Baptismal Vow and the Old English Nine Herbs Charm. While most extant references are simply to deity names, some narratives do survive into the present, such as the Lombard origin myth, which details a tradition among the Lombards that features the deities Frea (cognate with Old Norse Frigg) and Godan (cognate with Old Norse Óðinn). Attested in the 7th-century Origo Gentis Langobardorum and the 8th-century Historia Langobardorum from the Italian Peninsula, the narrative strongly corresponds in numerous ways with the prose introduction to the eddic poem Grímnismál, recorded in 13th-century Iceland. Very few texts make up the corpus of Gothic and other East Germanic languages, and East Germanic paganism and its associated mythic body is especially poorly attested. Notable topics that provide insight into the matter of East Germanic paganism include the Ring of Pietroassa, which appears to be a cult object (see also Gothic runic inscriptions), and the mention of the Gothic Anses (cognate with Old Norse Æsir '(pagan) gods') by Jordanes. Practices associated with the religion of the ancient Germanic peoples see fewer attestations. However, elements of religious practices are discernable throughout the textual record associated with the ancient Germanic peoples, including a focus on sacred groves and trees, the presence of seeresses, and numerous vocabulary items. The archaeological record has yielded a variety of depictions of deities, a number of them associated with depictions of the ancient Germanic peoples (see Anthropomorphic wooden cult figurines of Central and Northern Europe). Notable from the Roman period are the Matres and Matronae, some having Germanic names, to whom devotional altars were set up in regions of Germania, Eastern Gaul, and Northern Italy (with a small distribution elsewhere) that were occupied by the Roman army from the first to the fifth century. Germanic mythology and religious practice is of particular interest to Indo-Europeanists, scholars who seek to identify aspects of ancient Germanic culture—both in terms of linguistic correspondence and by way of motifs—stemming from Proto-Indo-European culture, including Proto-Indo-European mythology. The primordial being Ymir, attested solely in Old Norse sources, makes for a commonly cited example. In Old Norse texts, the death of this entity results in creation of the cosmos, a complex of motifs that finds strong correspondence elsewhere in the Indo-European sphere, notably in Vedic mythology. Germanic peoples began entering the Roman Empire in large numbers at the same time that Christianity was spreading there, and this connection was a major factor encouraging conversion. The East Germanic peoples, the Langobards, and the Suevi in Spain converted to Arian Christianity, a form of Christianity that rejected the divinity of Christ. The first Germanic people to convert to Arianism were the Visigoths, at the latest in 376 when they entered the Roman Empire. This followed a longer period of missionary work by both Orthodox Christians and Arians, such as the Arian Wulfila, who was made missionary bishop of the Goths in 341 and translated the Bible into Gothic. The Arian Germanic peoples all eventually converted to Nicene Christianity, which had become the dominant form of Christianity within the Roman Empire; the last to convert were the Visigoths in Spain under their king Reccared in 587. The areas of the Roman Empire conquered by the Franks, Alemanni, and Baiuvarii were mostly Christian already, but it appeared Christianity declined there. In 496, the Frankish king Clovis I converted to Nicene Christianity. This began a period of missionizing within Frankish territory. The Anglo-Saxons gradually converted following a mission sent by Pope Gregory the Great in 595. In the 7th century, Frankish-supported missionary activity spread out of Gaul, led by figures of the Anglo-Saxon mission such as Saint Boniface. The Saxons initially rejected Christianization, but were eventually forcibly converted by Charlemagne as a result of their conquest in the Saxon Wars in 776/777. While attempts to convert the Scandinavian peoples began in 831, they were mostly unsuccessful until the 10th and 11th centuries. The last Germanic people to convert were the Swedes, although the Geats had converted earlier. The pagan Temple at Uppsala seems to have continued to exist into the early 1100s. Germanic speakers developed a native script, the runes (or the fuþark), and the earliest known form of which consists of 24 characters. The runes are generally held to have been used exclusively by Germanic-speaking populations. All known early runic inscriptions are found in Germanic contexts with the potential exception of one inscription, which may indicate cultural transfer between the Germanic speakers to Slavic speakers (and may potentially be the earliest known writing among Slavic speakers). Like other indigenous scripts of Europe, the runes ultimately developed from the Phoenician alphabet, but unlike similar scripts, the runes were not replaced by the Latin alphabet by the first century BCE. Runes remained in use among the Germanic peoples throughout their history despite the significant influence of Rome. The precise date that Germanic speakers developed the runic alphabet is unknown, with estimates varying from 100 BCE to 100 CE. Generally accepted inscriptions in the oldest attested form of the script, called the Elder Futhark, date from 200 to 700 CE. The word rune is widely attested among Germanic languages, where it developed from Proto-Germanic *rūna and held a primary meaning of 'secret', but also other meanings such as 'whisper', 'mystery', 'closed deliberation', and 'council'. In most cases, runes appear not to have been used for everyday communication and knowledge of them may have generally been limited to a small group, for whom the term erilaR is attested from the sixth century onward. The letters of the Elder Futhark are arranged in an order called the futhark, so named after its first six characters. The alphabet is supposed to have been extremely phonetic, and each letter could also represent a word or concept, so that, for instance, the f-rune also stood for *fehu ('cattle, property'). Such examples are known as Begriffsrunen ('concept runes'). Runic inscriptions are found on organic materials such as wood, bone, horn, ivory, and animal hides, as well as on stone and metal. Inscriptions tend to be short, and are difficult to interpret as profane or magical. They include names, inscriptions by the maker of an object, memorials to the dead, as well as inscriptions that are religious or magical in nature. Germanic personal names are commonly dithematic, consisting of two components that may be combined freely (such as the Old Norse female personal name Sigríðr, consisting of sigr 'victory' + fríðr 'beloved'). As summarized by Per Vikstrand, "The old Germanic personal names are, from a social and ideological point of view, characterized by three main features: religion, heroism, and family bonds. The religious aspect [of Germanic names] seems to be an inherited, Indo-European trace, which the Germanic languages share with Greek and other Indo-European languages." One point of debate surrounding Germanic name-giving practice is whether name elements were considered semantically meaningful when combined. Whatever the case, an element of a name could be inherited by a male or female's offspring, leading to an alliterative lineage (related, see alliterative verse). The runestone D359 in Istaby, Sweden provides one such example, where three generations of men are connected by way of the element *wulfaz, meaning 'wolf' (the alliterative Haþuwulfaz, *Heruwulfaz, and Hariwulfaz). Sacral components to Germanic personal names are also attested, including elements such as *hailaga- and *wīha- (both usually translated as 'holy, sacred', see for example Vé), and deity names (theonyms). Deity names as first components of personal names are attested primarily in Old Norse names, where they commonly reference in particular the god Thor (Old Norse Þórr). The ancient Germanic-speaking peoples were a largely oral culture. Written literature in Germanic languages is not recorded until the 6th century (Gothic Bible) or the 8th century in modern England and Germany. The philologist Andreas Heusler proposed the existence of various genres of literature in the "Old Germanic" period, which were largely based on genres found in high medieval Old Norse poetry. These include ritual poetry, epigrammatic poetry (Spruchdichtung), memorial verses (Merkdichtung), lyric, narrative poetry, and praise poetry. Heinrich Beck suggests that, on the basis of Latin mentions in late antiquity and the early Middle Ages, the following genres can be adduced: origo gentis (the origin of a people or their rulers), the fall of heroes (casus heroici), praise poetry, and laments for the dead. Some stylistic aspects of later Germanic poetry appear to have origins in the Indo-European period, as shown by comparison with ancient Greek and Sanskrit poetry. Originally, the Germanic-speaking peoples shared a metrical and poetic form, alliterative verse, which is attested in very similar forms in Old Saxon, Old High German and Old English, and in a modified form in Old Norse. Alliterative verse is not attested in the small extant Gothic corpus. The poetic forms diverge among the different languages from the 9th century onward. Later Germanic peoples shared a common legendary tradition. These heroic legends mostly involve historical personages who lived during the migration period (4th–6th centuries AD), placing them in highly ahistorical and mythologized settings; they originate and develop as part of an oral tradition. Some early Gothic heroic legends are already found in Jordanes' Getica (c. 551). The close link between Germanic heroic legend and Germanic language and possibly poetic devices is shown by the fact that the Germanic speakers in Francia who adopted a Romance language, do not preserve Germanic legends but rather developed their own heroic folklore—excepting the figure of Walter of Aquitaine. Until the middle of the 20th century, the majority of scholars assumed the existence of a distinct Germanic legal culture and law. Early ideas about Germanic law have come under intense scholarly scrutiny since the 1950s, and specific aspects of it such as the legal importance of sibb, retinues, and loyalty, and the concept of outlawry can no longer be justified. Besides the assumption of a common Germanic legal tradition and the use of sources of different types from different places and time periods, there are no native sources for early Germanic law. The earliest written legal sources, the Leges Barbarorum, were all written under Roman and Christian influence and often with the help of Roman jurists, and contain large amounts of "Vulgar Latin Law", an unofficial legal system that functioned in the Roman provinces. Although Germanic law never appears to have been a competing system to Roman law, it is possible that Germanic "modes of thought" (Denkformen) still existed, with important elements being an emphasis on orality, gesture, formulaic language, legal symbolism, and ritual. Some items in the "Leges", such as the use of vernacular words, may reveal aspects of originally Germanic, or at least non-Roman, law. Legal historian Ruth Schmidt-Wiegand writes that this vernacular, often in the form of Latinized words, belongs to "the oldest layers of a Germanic legal language" and shows some similarities to Gothic. Warfare seems to have been a constant in Germanic society, including conflicts among and within Germanic peoples. There is no common Germanic word for "war", and it was not necessarily differentiated from other forms of violence. Historical information on Germanic warfare almost entirely depends on Greco-Roman sources, however their accuracy has been questioned. The core of the army was formed by the comitatus (retinue), a group of warriors following a chief. As retinues grew larger, their names could become associated with entire peoples. Many retinues functioned as auxilia (mercenary units in the Roman army). Roman sources stress, perhaps partially as a literary topos, that the Germanic peoples fought without discipline. Germanic warriors fought mostly on foot, in tight formations in close combat. Tacitus mentions a single formation as used by the Germani, the wedge (Latin: cuneus). Cavalry was rare: in the Roman period, it mostly consisted of chiefs and their immediate retinues, who may have dismounted to fight. However, East Germanic peoples such as the Goths developed cavalry forces armed with lances due to contact with various nomadic peoples. Archaeological finds, mostly in the form of grave goods, indicate that most warriors were armed with spear, shield, and often with swords. Higher status individuals were often buried with spurs for riding. The only archaeological evidence for helmets and chain mail shows them to be of Roman manufacture. Unlike agriculture in the Roman provinces, which was organized around the large farms known as villae rusticae, Germanic agriculture was organized around villages. When Germanic peoples expanded into northern Gaul in the 4th and 5th centuries CE, they brought this village-based agriculture with them, which increased the agricultural productivity of the land; Heiko Steuer suggests this means that Germania was more agriculturally productive than is generally assumed. Villages were not distant from each other but often within sight, revealing a fairly high population density, and contrary to the assertions of Roman sources, only about 30% of Germania was covered in forest, about the same percentage as today. Based on pollen samples and the finds of seeds and plant remains, the chief grains cultivated in Germania were barley, oats, and wheat (both Einkorn and emmer), while the most common vegetables were beans and peas. Flax was also grown. Agriculture in Germania relied heavily on animal husbandry, primarily the raising of cattle, which were smaller than their Roman counterparts Both cultivation and animal husbandry methods improved with time, with examples being the introduction of rye, which grew better in Germania, and the introduction of the three-field system. It is unclear if there was a special class of craftsmen in Germania, however archaeological finds of tools are frequent. Many everyday items such as dishes were made out of wood, and archaeology has found the remains of wooden well construction. The 4th-century CE Nydam and Illerup ships show highly developed knowledge of ship construction, while elite graves have revealed wooden furniture with complex joinery. Products made from ceramics included cooking, drinking, and storage, vessels, as well as lamps. While originally formed by hand, the period around 1 CE saw the introduction of the potter's wheel. Some of the ceramics produced on potter's wheels seem to have been done in direct imitation of Roman wares, and may have been produced by Romans in Germania or by Germani who had learned Roman techniques while serving in the Roman army. The shape and decoration of Germanic ceramics vary by region and archaeologists have traditionally used these variations to determine larger cultural areas. Many ceramics were probably produced locally in hearths, but large pottery kilns have also been discovered, and it seems clear that there were areas of specialized production. Despite the claims of Roman writers such as Tacitus that the Germani had little iron and lacked expertise in working it, deposits of iron were commonly found in Germania and Germanic smiths were skillful metalworkers. Smithies are known from multiple settlements, and smiths were often buried with their tools. An iron mine discovered at Rudki, in the Łysogóry mountains of modern central Poland, operated from the 1st to the 4th centuries CE and included a substantial smelting workshop; similar facilities have been found in Bohemia. The remains of large smelting operations have been discovered by Ribe in Jutland (4th to 6th century CE), as well as at Glienick in northern Germany and at Heeten in the Netherlands (both 4th century CE). Germanic smelting furnaces may have produced metal that was as high-quality as that produced by the Romans. In addition to large-scale production, nearly every individual settlement seems to have produced some iron for local use. Iron was used for agricultural tools, tools for various crafts, and for weapons. Lead was needed in order to make molds and for the production of jewelry, however it is unclear if the Germani were able to produce lead. While lead mining is known from within the Siegerland across the Rhine from the Roman Empire, it is sometimes theorized that this was the work of Roman miners. Another mine within Germania was near modern Soest, where again it is theorized that lead was exported to Rome. The neighboring Roman provinces of Germania superior and Germania inferior produced a great deal of lead, which has been found stamped as plumbum Germanicum ("Germanic lead") in Roman shipwrecks. Deposits of gold are not found naturally within Germania and had to either be imported or could be found having naturally washed down rivers. The earliest known gold objects made by Germanic craftsmen are mostly small ornaments dating from the later 1st century CE. Silver working likewise dates from the first century CE, and silver often served as a decorative element with other metals. From the 2nd century onward, increasingly complex gold jewelry was made, often inlaid with precious stones and in a polychrome style. Inspired by Roman metalwork, Germanic craftsmen also began working with gold and silver-gilt foils on belt buckles, jewelry, and weapons. Pure gold objects produced in the late Roman period included torcs with snakeheads, often displaying filigree and cloisonné work, techniques that dominated throughout Germanic Europe. Clothing does not generally preserve well archaeologically. Early Germanic clothing is shown on some Roman stone monuments such as Trajan's Column and the Column of Marcus Aurelius, and is occasionally discovered in finds from in moors, mostly from Scandinavia. Frequent finds include long trousers, sometimes including connected stockings, shirt-like gowns (Kittel) with long sleeves, large pieces of cloth, and capes with fur on the inside. All of these are thought to be male clothing, while finds of tubular garments are thought to be female clothing. These would have reached to the ankles and would likely have been held in place by brooches at the height of the shoulders, as shown on Roman monuments. On Roman depictions, the dress was gathered below the breast or at the waist, and there are frequently no sleeves. Sometimes a blouse or skirt is depicted below the dress, along with a neckerchief around the throat. By the middle of the 5th century CE, both men and women among the continental Germanic peoples came to wear a Roman-style tunic as their most important piece of clothing. This was secured at the waist and likely adopted due to intensive contact with the Roman world. The Romans typically depict Germanic men and women as bareheaded, although some head-coverings have been found. Although Tacitus mentions an undergarment made of linen, no examples of these have been found. Surviving examples indicate that Germanic textiles were of high quality and mostly made of flax and wool. Roman depictions show the Germani wearing materials that were only lightly worked. Surviving examples indicate that a variety of weaving techniques were used. Leather was used for shoes, belts, and other gear. Spindles, sometimes made of glass or amber, and the weights from looms and distaffs are frequently found in Germanic settlements. Archaeology shows that from at least the turn of the 3rd century CE larger regional settlements in Germania existed that were not exclusively involved in an agrarian economy, and that the main settlements were connected by paved roads. The entirety of Germania was within a system of long-distance trade. Migration-period seaborne trade is suggested by Gudme on the Danish island of Funen and other harbors on the Baltic. Roman trade with Germania is poorly documented. Roman merchants crossing the Alps for Germania are recorded already by Caesar in the 1st century BCE. During the imperial period, most trade probably took place in trading posts in Germania or at major Roman bases. The most well-known Germanic export to the Roman Empire was amber, with a trade centered on the Baltic coast. Economically, however, amber is likely to have been fairly unimportant. The use of Germanic loanwords in surviving Latin texts suggests that besides amber (glaesum), the Romans also imported the feathers of Germanic geese (ganta) and hair dye (sapo). Germanic slaves were also a major commodity. Archaeological discoveries indicate that lead was exported from Germania as well, perhaps mined in Roman-Germanic "joint ventures". Products imported from Rome are found archaeologically throughout the Germanic sphere and include vessels of bronze and silver, glassware, pottery, brooches; other products such as textiles and foodstuffs may have been just as important. Rather than mine and smelt non-ferrous metals themselves, Germanic smiths seem to have often preferred to melt down finished metal objects from Rome, which were imported in large numbers, including coins, metal vessels, and metal statues. Tacitus mentions in Germania chapter 23 that the Germani living along the Rhine bought wine, and Roman wine has been found in Denmark and northern Poland. Finds of Roman silver coinage and weapons might have been war booty or the result of trade, while high quality silver items may have been diplomatic gifts. Roman coinage may have acted as a form of currency as well. The use of genetic studies to investigate the Germanic past is controversial, with scholars such as Guy Halsall suggesting it could represent a hearkening back to 19th-century ideas of race. Sebastian Brather, Wilhelm Heizmann, and Steffen Patzold write that genetics studies are of great use for demographic history, but cannot give us any information about cultural history. In a 2013 book which reviewed studies made up until then, scholars noted that most Germanic speakers today have a Y-DNA that is a mixture including haplogroup I1, R1a1a, R1b-P312 and R1b-U106; however, the authors also note that these groups are older than Germanic languages and found among speakers of other languages. The rediscovery of Tacitus's Germania in the 1450s was used by German humanists to claim a glorious classical past for their nation that could compete with that of Greece and Rome, and to equate the "Germanic" with the "German". While the humanists' notion of the "Germanic" was initially vague, later it was narrowed and used to support a notion of German(ic) superiority to other nations. Equally important was Jordanes's Getica, rediscovered by Aeneas Sylvius Piccolomini in the mid-15th century and first printed in 1515 by Konrad Peutinger, which depicted Scandinavia as the "womb of nations" (Latin: vagina nationum) from which all the historical northeastern European barbarians migrated in the distant past. While treated with suspicion by German scholars, who preferred the indigenous origin given by Tacitus, this motif became very popular in contemporary Swedish Gothicism, as it supported Sweden's imperial ambitions. Peutinger printed the Getica together with Paul the Deacon's History of the Lombards, so that the Germania, the Getica, and the History of the Lombards formed the basis for the study of the Germanic past. Scholars did not clearly differentiate between the Germanic peoples, Celtic peoples, and the "Scythian peoples" until the late 18th century with the discovery of Indo-European and the establishment of language as the primary criterion for nationality. Before that time, German scholars considered the Celtic peoples to be part of the Germanic group. The beginning of Germanic philology proper starts around the turn of the 19th century, with Jacob and Wilhelm Grimm being the two most significant founding figures. Their oeuvre included various monumental works on linguistics, culture, and literature. Jacob Grimm offered many arguments identifying the Germans as the "most Germanic" of the Germanic-speaking peoples, many of which were taken up later by others who sought to equate "Germanicness" (German: Germanentum) with "Germanness" (German: Deutschtum). Grimm also argued that the Scandinavian sources were, while much later, more "pure" attestations of "Germanness" than those from the south, an opinion that remains common today. German nationalist thinkers of the völkisch movement placed a great emphasis on the connection of modern Germans to the Germania using Tacitus to prove the purity and virtue of the German people, which had allowed them to conquer the decadent Romans. German historians used the Germanic past to argue for a liberal, democratic form of government and a unified German state. Contemporary Romantic nationalism in Scandinavia placed more weight on the Viking Age, resulting in the movement known as Scandinavism. In the late 19th century, Gustaf Kossinna developed several widely accepted theories tying archaeological finds of specific assemblages of objects. Kossina used his theories to extend Germanic identity back to the Neolithic period and to state with confidence when and where various Germanic and other peoples had migrated within Europe. In the 1930s and 40s, the Nazi Party made use of notions of Germanic "purity" reaching back into the earliest prehistoric times. Nazi ideologues also used the "Germanic" nature of peoples such as the Franks and Goths to justify territorial annexations in northern France, Ukraine, and the Crimea. Scholars reinterpreted Germanic culture to justify the Nazis' rule as anchored in the Germanic past, emphasizing noble leaders and warlike retinues who dominated surrounding peoples. After 1945, these associations led to a scholarly backlash and re-examining of Germanic origins. Many medieval specialists have even demanded that scholars avoid the term Germanic altogether since it is too emotionally charged, adding that it has been politically abused and creates more confusion than clarity. Classical and medieval sources
[ { "paragraph_id": 0, "text": "The Germanic peoples were historical groups of people that once occupied Northwestern and Central Europe and Scandinavia during antiquity and into the early Middle Ages. Since the 19th century, they have traditionally been defined by the use of ancient and early medieval Germanic languages and are thus equated at least approximately with Germanic-speaking peoples, although different academic disciplines have their own definitions of what makes someone or something \"Germanic\". The Romans named the area belonging to North-Central Europe in which Germanic peoples lived Germania, stretching east to west between the Vistula and Rhine rivers and north to south from southern Scandinavia to the upper Danube. In discussions of the Roman period, the Germanic peoples are sometimes referred to as Germani or ancient Germans, although many scholars consider the second term problematic since it suggests identity with present-day Germans. The very concept of \"Germanic peoples\" has become the subject of controversy among contemporary scholars. Some scholars call for its total abandonment as a modern construct since lumping \"Germanic peoples\" together implies a common group identity for which there is little evidence. Other scholars have defended the term's continued use and argue that a common Germanic language allows one to speak of \"Germanic peoples\", regardless of whether these ancient and medieval peoples saw themselves as having a common identity. While several historians and archaeologists continue to use the term \"Germanic peoples\" to refer to historical people groups from the 1st to 4th centuries CE, the term is no longer used by most historians and archaeologists for the period around the Fall of the Roman Empire and the Early Middle Ages.", "title": "" }, { "paragraph_id": 1, "text": "Scholars generally agree that it is possible to refer to Germanic-speaking peoples after 500 BCE. Archaeologists usually connect the early Germanic peoples with the Jastorf culture of the Pre-Roman Iron Age, which is found in Denmark (southern Scandinavia) and northern Germany from the 6th to 1st centuries BCE, around the same time that the First Germanic Consonant Shift is theorized to have occurred; this sound change led to recognizably Germanic languages. From northern Germany and southern Scandinavia, the Germanic peoples expanded south, east, and west, coming into contact with the Celtic, Iranic, Baltic, and Slavic peoples. Roman authors first described Germanic peoples near the Rhine in the 1st century BCE, while the Roman Empire was establishing its dominance in that region. Under Emperor Augustus (27 BCE–14 CE), the Romans attempted to conquer a large area of Germania, but they withdrew after a major Roman defeat at the Battle of the Teutoburg Forest in 9 CE. The Romans continued to control the Germanic frontier closely by meddling in its politics, and they constructed a long fortified border, the Limes Germanicus. From 166 to 180 CE, Rome was embroiled in a conflict against the Germanic Marcomanni, Quadi, and many other peoples known as the Marcomannic Wars. The wars reordered the Germanic frontier, and afterwards, new Germanic peoples appear for the first time in the historical record, such as the Franks, Goths, Saxons, and Alemanni. During the Migration Period (375–568), various Germanic peoples entered the Roman Empire and eventually took control of parts of it and established their own independent kingdoms after the collapse of Western Roman rule. The most powerful of them were the Franks, who conquered many of the others. Eventually, the Frankish king Charlemagne claimed the title of Holy Roman Emperor for himself in 800.", "title": "" }, { "paragraph_id": 2, "text": "Archaeological finds suggest that Roman-era sources portrayed the Germanic way of life as more primitive than it actually was. Instead, archaeologists have unveiled evidence of a complex society and economy throughout Germania. Germanic-speaking peoples originally shared similar religious practices. Denoted by the term Germanic paganism, they varied throughout the territory occupied by Germanic-speaking peoples. Over the course of Late Antiquity, most continental Germanic peoples and the Anglo-Saxons of Britain converted to Christianity, but the Saxons and Scandinavians converted only much later. The Germanic peoples shared a native script from around the first century or before, the runes, which was gradually replaced with the Latin script, although runes continued to be used for specialized purposes thereafter.", "title": "" }, { "paragraph_id": 3, "text": "Traditionally, the Germanic peoples have been seen as possessing a law dominated by the concepts of feuding and blood compensation. The precise details, nature and origin of what is still normally called \"Germanic law\" are now controversial. Roman sources state that the Germanic peoples made decisions in a popular assembly (the thing) but that they also had kings and war leaders. The ancient Germanic-speaking peoples probably shared a common poetic tradition, alliterative verse, and later Germanic peoples also shared legends originating in the Migration Period.", "title": "" }, { "paragraph_id": 4, "text": "The publishing of Tacitus's Germania by humanist scholars in the 1400s greatly influenced the emerging idea of \"Germanic peoples\". Later scholars of the Romantic period, such as Jacob and Wilhelm Grimm, developed several theories about the nature of the Germanic peoples that were highly influenced by romantic nationalism. For those scholars, the \"Germanic\" and modern \"German\" were identical. Ideas about the early Germans were also highly influential among and were influenced and co-opted by the nationalist and racist völkisch movement and later by the Nazis, which led in the second half of the 20th century to a backlash against many aspects of earlier scholarship.", "title": "" }, { "paragraph_id": 5, "text": "The etymology of the Latin word Germani, from which Latin Germania and English Germanic are derived, is unknown, although several proposals have been put forward. Even the language from which it derives is a subject of dispute, with proposals of Germanic, Celtic, and Latin, and Illyrian origins. Herwig Wolfram, for example, thinks Germani must be Gaulish. The historian Wolfgang Pfeifer more or less concurs with Wolfram and surmises that the name Germani is likely of Celtic etymology and is related to the Old Irish word gair ('neighbours') or could be tied to the Celtic word for their war cries, gairm, which simplifies into 'the neighbours' or 'the screamers'. Regardless of its language of origin, the name was transmitted to the Romans via Celtic speakers.", "title": "Terminology" }, { "paragraph_id": 6, "text": "It is unclear that any people group ever referred to themselves as Germani. By late antiquity, only peoples near the Rhine, especially the Franks and sometimes the Alemanni, were called Germani by Latin or Greek writers. Germani subsequently ceased to be used as a name for any group of people and was revived as such only by the humanists in the 16th century. Previously, scholars during the Carolingian period (8th–11th centuries) had already begun using Germania and Germanicus in a territorial sense to refer to East Francia.", "title": "Terminology" }, { "paragraph_id": 7, "text": "In modern English, the adjective Germanic is distinct from German, which is generally used when referring to modern Germans only. Germanic relates to the ancient Germani or the broader Germanic group. In modern German, the ancient Germani are referred to as Germanen and Germania as Germanien, as distinct from modern Germans (Deutsche) and modern Germany (Deutschland). The direct equivalents in English are, however, Germans for Germani and Germany for Germania although the Latin Germania is also used. To avoid ambiguity, the Germani may instead be called \"ancient Germans\" or Germani by using the Latin term in English.", "title": "Terminology" }, { "paragraph_id": 8, "text": "The modern definition of Germanic peoples developed in the 19th century, when the term Germanic was linked to the newly identified Germanic language family. Linguistics provided a new way of defining the Germanic peoples, which came to be used in historiography and archaeology. While Roman authors did not consistently exclude Celtic-speaking people or have a term corresponding to Germanic-speaking peoples, this new definition—which used the Germanic language as the main criterion—presented the Germani as a people or nation (Volk) with a stable group identity linked to language. As a result, some scholars treat the Germani (Latin) or Germanoi (Greek) of Roman-era sources as non-Germanic if they seemingly spoke non-Germanic languages. For clarity, Germanic peoples, when defined as \"speakers of a Germanic language\", are sometimes referred to as \"Germanic-speaking peoples\". Today, the term \"Germanic\" is widely applied to \"phenomena including identities, social, cultural or political groups, to material cultural artefacts, languages and texts, and even specific chemical sequences found in human DNA\". Several scholars continue to use the term to refer to a culture existing between the 1st to 4th centuries CE, but most historians and archaeologists researching Late Antiquity and the Early Middle Ages no longer use it.", "title": "Terminology" }, { "paragraph_id": 9, "text": "Apart from the designation of a language family (i.e., \"Germanic languages\"), the application of the term \"Germanic\" has become controversial in scholarship since 1990, especially among archaeologists and historians. Scholars have increasingly questioned the notion of ethnically defined people groups (Völker) as stable basic actors of history. The connection of archaeological assemblages to ethnicity has also been increasingly questioned. This has resulted in different disciplines developing different definitions of \"Germanic\". Beginning with the work of the \"Toronto School\" around Walter Goffart, various scholars have denied that anything such as a common Germanic ethnic identity ever existed. Such scholars argue that most ideas about Germanic culture are taken from far later epochs and projected backwards to antiquity. Historians of the Vienna School, such as Walter Pohl, have also called for the term to be avoided or used with careful explanation, and argued that there is little evidence for a common Germanic identity. The Anglo-Saxonist Leonard Neidorf writes that historians of the continental-European Germanic peoples of the 5th and 6th centuries are \"in agreement\" that there was no pan-Germanic identity or solidarity. Whether a scholar favors the existence of a common Germanic identity or not is often related to their position on the nature of the end of the Roman Empire.", "title": "Terminology" }, { "paragraph_id": 10, "text": "Defenders of continued use of the term Germanic argue that the speakers of Germanic languages can be identified as Germanic people by language regardless of how they saw themselves. Linguists and philologists have generally reacted skeptically to claims that there was no Germanic identity or cultural unity, and they may view Germanic simply as a long-established and convenient term. Some archaeologists have also argued in favor of retaining the term Germanic due to its broad recognizability. Archaeologist Heiko Steuer defines his own work on the Germani in geographical terms (covering Germania), rather than in ethnic terms. He nevertheless argues for some sense of shared identity between the Germani, noting the use of a common language, a common runic script, various common objects of material culture such as bracteates and gullgubber (small gold objects) and the confrontation with Rome as things that could cause a sense of shared \"Germanic\" culture. Despite being cautious of the use of Germanic to refer to peoples, Sebastian Brather, Wilhelm Heizmann and Steffen Patzold nevertheless refer to further commonalities such as the widely attested worship of deities such as Odin, Thor and Frigg, and a shared legendary tradition.", "title": "Terminology" }, { "paragraph_id": 11, "text": "The first author to describe the Germani as a large category of peoples distinct from the Gauls and Scythians was Julius Caesar, writing around 55 BCE during his governorship of Gaul. In Caesar's account, the clearest defining characteristic of the Germani people was that they lived east of the Rhine, opposite Gaul on the west side. Caesar sought to explain both why his legions stopped at the Rhine and also why the Germani were more dangerous than the Gauls and a constant threat to the empire. He also classified the Cimbri and Teutons, peoples who had previously invaded Italy, as Germani, and examples of this threat to Rome. Although Caesar described the Rhine as the border between Germani and Celts, he also describes a group of people he identifies as Germani who live on the west bank of the Rhine in the northeast of Gaul, the Germani cisrhenani. It is unclear if these Germani were actually Germanic speakers. According to the Roman historian Tacitus in his Germania (c. 98 CE), it was among this group, specifically the Tungri, that the name Germani first arose, and was spread to further groups. Tacitus continues to mention Germanic tribes on the west bank of the Rhine in the period of the early Empire. Caesar's division of the Germani from the Celts was not taken up by most writers in Greek.", "title": "Terminology" }, { "paragraph_id": 12, "text": "Caesar and authors following him regarded Germania as stretching east of the Rhine for an indeterminate distance, bounded by the Baltic Sea and the Hercynian Forest. Pliny the Elder and Tacitus placed the eastern border at the Vistula. The Upper Danube served as a southern border. Between there and the Vistula Tacitus sketched an unclear boundary, describing Germania as separated in the south and east from the Dacians and the Sarmatians by mutual fear or mountains. This undefined eastern border is related to a lack of stable frontiers in this area such as were maintained by Roman armies along the Rhine and Danube. The geographer Ptolemy (2nd century CE) applied the name Germania magna (\"Greater Germania\", Greek: Γερμανία Μεγάλη) to this area, contrasting it with the Roman provinces of Germania Prima and Germania Secunda (on the west bank of the Rhine). In modern scholarship, Germania magna is sometimes also called Germania libera (\"free Germania\"), a name coined by Jacob Grimm around 1835.", "title": "Terminology" }, { "paragraph_id": 13, "text": "Caesar and, following him, Tacitus, depicted the Germani as sharing elements of a common culture. A small number of passages by Tacitus and other Roman authors (Caesar, Suetonius) mention Germanic tribes or individuals speaking a language distinct from Gaulish. For Tacitus (Germania 43, 45, 46), language was a characteristic, but not defining feature of the Germanic peoples. Many of the ascribed ethnic characteristics of the Germani represented them as typically \"barbarian\", including the possession of stereotypical vices such as \"wildness\" and of virtues such as chastity. Tacitus was at times unsure whether a people were Germanic or not, expressing his uncertainty about the Bastarnae, who he says looked like Sarmatians but spoke like the Germani, about the Osi and the Cotini, and about the Aesti, who were like Suebi but spoke a different language. When defining the Germani ancient authors did not differentiate consistently between a territorial definition (\"those living in Germania\") and an ethnic definition (\"having Germanic ethnic characteristics\"), although the two definitions did not always align.", "title": "Terminology" }, { "paragraph_id": 14, "text": "The Romans did not regard the eastern Germanic speakers such as Goths, Gepids, and Vandals as Germani, but rather connected them with other non-Germanic-speaking peoples such as the Huns, Sarmatians, and Alans. Romans described these peoples, including those who did not speak a Germanic language, as \"Gothic people\" (gentes Gothicae) and most often classified them as \"Scythians\". The writer Procopius, describing the Ostrogoths, Visigoths, Vandals, Alans, and Gepids, derived the Gothic peoples from the ancient Getae and described them as sharing similar customs, beliefs, and a common language.", "title": "Terminology" }, { "paragraph_id": 15, "text": "Several ancient sources list subdivisions of the Germanic tribes. Writing in the first century CE, Pliny the Elder lists five Germanic subgroups: the Vandili, the Inguaeones, the Istuaeones (living near the Rhine), the Hermiones (in the Germanic interior), and the Peucini Basternae (living on the lower Danube near the Dacians). In chapter 2 of the Germania, written about a half-century later, Tacitus lists only three subgroups: the Ingvaeones (near the sea), the Hermiones (in the interior of Germania), and the Istvaeones (the remainder of the tribes); Tacitus says these groups each claimed descent from the god Mannus, son of Tuisto. Tacitus also mentions a second tradition that there were four sons of either Mannus or Tuisto from whom the groups of the Marsi, Gambrivi, Suebi, and Vandili claim descent. The Hermiones are also mentioned by Pomponius Mela, but otherwise, these divisions do not appear in other ancient works on the Germani.", "title": "Terminology" }, { "paragraph_id": 16, "text": "There are a number of inconsistencies in the listing of Germanic subgroups by Tacitus and Pliny. While both Tacitus and Pliny mention some Scandinavian tribes, they are not integrated into the subdivisions. While Pliny lists the Suebi as part of the Hermiones, Tacitus treats them as a separate group. Additionally, Tacitus's description of a group of tribes as united by the cult of Nerthus (Germania 40) as well as the cult of the Alcis controlled by the Nahanarvali (Germania 43) and Tacitus's account of the origin myth of the Semnones (Germania 39) all suggest different subdivisions than the three mentioned in Germania chapter 2.", "title": "Terminology" }, { "paragraph_id": 17, "text": "The subdivisions found in Pliny and Tacitus have been very influential for scholarship on Germanic history and language up until recent times. However, outside of Tacitus and Pliny there are no other textual indications that these groups were important. The subgroups mentioned by Tacitus are not used by him elsewhere in his work, contradict other parts of his work, and cannot be reconciled with Pliny, who is equally inconsistent. Additionally, there is no linguistic or archaeological evidence for these subgroups. New archaeological finds have tended to show that the boundaries between Germanic peoples were very permeable, and scholars now assume that migration and the collapse and formation of cultural units were constant occurrences within Germania. Nevertheless, various aspects such as the alliteration of many of the tribal names in Tacitus's account and the name of Mannus himself suggest that the descent from Mannus was an authentic Germanic tradition.", "title": "Terminology" }, { "paragraph_id": 18, "text": "All Germanic languages derive from the Proto-Indo-European language (PIE), which is generally thought to have been spoken between 4500 and 2500 BCE. The ancestor of Germanic languages is referred to as Proto- or Common Germanic, and likely represented a group of mutually intelligible dialects. They share distinctive characteristics which set them apart from other Indo-European sub-families of languages, such as Grimm's and Verner's law, the conservation of the PIE ablaut system in the Germanic verb system (notably in strong verbs), or the merger of the vowels a and o qualities (ə, a, o > a; ā, ō > ō). During the Pre-Germanic linguistic period (2500–500 BCE), the proto-language was almost certainly influenced by an unknown non-Indo-European language, still noticeable in the Germanic phonology and lexicon.", "title": "Languages" }, { "paragraph_id": 19, "text": "Although Proto-Germanic is reconstructed without dialects via the comparative method, it is almost certain that it never was a uniform proto-language. The late Jastorf culture occupied so much territory that it is unlikely that Germanic populations spoke a single dialect, and traces of early linguistic varieties have been highlighted by scholars. Sister dialects of Proto-Germanic itself certainly existed, as evidenced by the absence of the First Germanic Sound Shift (Grimm's law) in some \"Para-Germanic\" recorded proper names, and the reconstructed Proto-Germanic language was only one among several dialects spoken at that time by peoples identified as \"Germanic\" by Roman sources or archeological data. Although Roman sources name various Germanic tribes such as Suevi, Alemanni, Bauivari, etc., it is unlikely that the members of these tribes all spoke the same dialect.", "title": "Languages" }, { "paragraph_id": 20, "text": "Definite and comprehensive evidence of Germanic lexical units only occurred after Caesar's conquest of Gaul in the 1st century BCE, after which contacts with Proto-Germanic speakers began to intensify. The Alcis, a pair of brother gods worshipped by the Nahanarvali, are given by Tacitus as a Latinized form of *alhiz (a kind of 'stag'), and the word sapo ('hair dye') is certainly borrowed from Proto-Germanic *saipwōn- (English soap), as evidenced by the parallel Finnish loanword saipio. The name of the framea, described by Tacitus as a short spear carried by Germanic warriors, most likely derives from the compound *fram-ij-an- ('forward-going one'), as suggested by comparable semantical structures found in early runes (e.g., raun-ij-az 'tester', on a lancehead) and linguistic cognates attested in the later Old Norse, Old Saxon and Old High German languages: fremja, fremmian and fremmen all mean 'to carry out'.", "title": "Languages" }, { "paragraph_id": 21, "text": "In the absence of earlier evidence, it must be assumed that Proto-Germanic speakers living in Germania were members of preliterate societies. The only pre-Roman inscriptions that could be interpreted as Proto-Germanic, written in the Etruscan alphabet, have not been found in Germania but rather in the Venetic region. The inscription harikastiteiva\\\\\\ip, engraved on the Negau helmet in the 3rd–2nd centuries BCE, possibly by a Germanic-speaking warrior involved in combat in northern Italy, has been interpreted by some scholars as Harigasti Teiwǣ (*harja-gastiz 'army-guest' + *teiwaz 'god, deity'), which could be an invocation to a war-god or a mark of ownership engraved by its possessor. The inscription Fariarix (*farjōn- 'ferry' + *rīk- 'ruler') carved on tetradrachms found in Bratislava (mid-1st c. BCE) may indicate the Germanic name of a Celtic ruler.", "title": "Languages" }, { "paragraph_id": 22, "text": "By the time Germanic speakers entered written history, their linguistic territory had stretched farther south, since a Germanic dialect continuum (where neighbouring language varieties diverged only slightly between each other, but remote dialects were not necessarily mutually intelligible due to accumulated differences over the distance) covered a region roughly located between the Rhine, the Vistula, the Danube, and southern Scandinavia during the first two centuries of the Common Era. East Germanic speakers dwelled on the Baltic sea coasts and islands, while speakers of the Northwestern dialects occupied territories in present-day Denmark and bordering parts of Germany at the earliest date when they can be identified.", "title": "Languages" }, { "paragraph_id": 23, "text": "In the 2nd and 3rd centuries CE, migrations of East Germanic gentes from the Baltic Sea coast southeastwards into the hinterland led to their separation from the dialect continuum. By the late 3rd century CE, linguistic divergences like the West Germanic loss of the final consonant -z had already occurred within the \"residual\" Northwest dialect continuum. The latter definitely ended after the 5th- and 6th-century migrations of Angles, Jutes and part of the Saxon tribes towards modern-day England.", "title": "Languages" }, { "paragraph_id": 24, "text": "The Germanic languages are traditionally divided between East, North and West Germanic branches. The modern prevailing view is that North and West Germanic were also encompassed in a larger subgroup called Northwest Germanic.", "title": "Languages" }, { "paragraph_id": 25, "text": "Further internal classifications are still debated among scholars, as it is unclear whether the internal features shared by several branches are due to early common innovations or to the later diffusion of local dialectal innovations.", "title": "Languages" }, { "paragraph_id": 26, "text": "The Germanic-speaking peoples speak an Indo-European language. The leading theory for the origin of Germanic languages, suggested by archaeological, linguistic and genetic evidence, postulates a diffusion of Indo-European languages from the Pontic–Caspian steppe towards Northern Europe during the third millennium BCE, via linguistic contacts and migrations from the Corded Ware culture towards modern-day Denmark, resulting in cultural mixing with the earlier Funnelbeaker culture. The subsequent culture of the Nordic Bronze Age (c. 2000/1750-c. 500 BCE) shows definite cultural and population continuities with later Germanic peoples, and is often supposed to have been the culture in which the Germanic Parent Language, the predecessor of the Proto-Germanic language, developed. However, it is unclear whether these earlier peoples possessed any ethnic continuity with the later Germanic peoples.", "title": "History" }, { "paragraph_id": 27, "text": "Generally, scholars agree that it is possible to speak of Germanic-speaking peoples after 500 BCE, although the first attestation of the name Germani is not until much later. Between around 500 BCE and the beginning of the common era, archeological and linguistic evidence suggest that the Urheimat ('original homeland') of the Proto-Germanic language, the ancestral idiom of all attested Germanic dialects, was primarily situated in the southern Jutland peninsula, from which Proto-Germanic speakers migrated towards bordering parts of Germany and along the sea-shores of the Baltic and the North Sea, an area corresponding to the extent of the late Jastorf culture. If the Jastorf Culture is the origin of the Germanic peoples, then the Scandinavian peninsula would have become Germanic either via migration or assimilation over the course of the same period. Alternatively, Hermann Ament [de] has stressed that two other archaeological groups must have belonged to the Germani, one on either side of the Lower Rhine and reaching to the Weser, and another in Jutland and southern Scandinavia. These groups would thus show a \"polycentric origin\" for the Germanic peoples. The neighboring Przeworsk culture in modern Poland is thought to possibly reflect a Germanic and Slavic component. The identification of the Jastorf culture with the Germani has been criticized by Sebastian Brather, who notes that it seems to be missing areas such as southern Scandinavia and the Rhine-Weser area, which linguists argue to have been Germanic, while also not according with the Roman era definition of Germani, which included Celtic-speaking peoples further south and west.", "title": "History" }, { "paragraph_id": 28, "text": "A category of evidence used to locate the Proto-Germanic homeland is founded on traces of early linguistic contacts with neighbouring languages. Germanic loanwords in the Finnic and Sámi languages have preserved archaic forms (e.g. Finnic kuningas, from Proto-Germanic *kuningaz 'king'; rengas, from *hringaz 'ring'; etc.), with the older loan layers possibly dating back to an earlier period of intense contacts between pre-Germanic and Finno-Permic (i.e. Finno-Samic) speakers. Shared lexical innovations between Celtic and Germanic languages, concentrated in certain semantic domains such as religion and warfare, indicates intensive contacts between the Germani and Celtic peoples, usually identified with the archaeological La Tène culture, found in southern Germany and the modern Czech Republic. Early contacts probably occurred during the Pre-Germanic and Pre-Celtic periods, dated to the 2nd millennium BCE, and the Celts appear to have had a large amount of influence on Germanic culture from up until the first century CE, which led to a high degree of Celtic-Germanic shared material culture and social organization. Some evidence of linguistic convergence between Germanic and Italic languages, whose Urheimat is supposed to have been situated north of the Alps before the 1st millennium BCE, have also been highlighted by scholars. Shared changes in their grammars also suggest early contacts between Germanic and Balto-Slavic languages; however, some of these innovations are shared with Baltic only, which may point to linguistic contacts during a relatively late period, at any rate after the initial breakup of Balto-Slavic into Baltic and Slavic languages, with the similarities to Slavic being seen as remnants of Indo-European archaisms or the result of secondary contacts.", "title": "History" }, { "paragraph_id": 29, "text": "According to some authors the Bastarnae or Peucini were the first Germani to be encountered by the Greco-Roman world and thus to be mentioned in historical records. They appear in historical sources going back as far as the 3rd century BCE through the 4th century CE. Another eastern people known from about 200 BCE, and sometimes believed to be Germanic-speaking, are the Sciri (Greek: Skiroi), who are recorded threatening the city of Olbia on the Black Sea. Late in the 2nd century BCE, Roman and Greek sources recount the migrations of the Cimbri, Teutones and Ambrones whom Caesar later classified as Germanic. The movements of these groups through parts of Gaul, Italy and Hispania resulted in the Cimbrian War (113–101 BCE) against the Romans, in which the Teutons and Cimbri were victorious over several Roman armies but were ultimately defeated.", "title": "History" }, { "paragraph_id": 30, "text": "The first century BCE was a time of the expansion of Germanic-speaking peoples at the expense of Celtic-speaking polities in modern southern Germany and the Czech Republic. In 63 BCE, Ariovistus, king of the Suevi and a host of other peoples, led a force across the Rhine into Gaul to aid the Sequani against their enemies the Aedui. The Suevi were victorious at the Battle of Magetobriga, and initially were considered an ally of Rome. The Aedui were Roman allies and Julius Caesar, the governor of the Roman province of Transalpine Gaul in 58 BCE, went to war with them, defeating Ariovistus at the Battle of Vosges. In 55 BCE, Caesar crossed the Rhine into Germania, massacring a large migrating group of Tencteri and Usipetes who had crossed the Rhine from the east.", "title": "History" }, { "paragraph_id": 31, "text": "Throughout the reign of Augustus—from 27 BCE until 14 CE—the Roman empire expanded into Gaul, with the Rhine as a border. Starting in 13 BCE, there were Roman campaigns across the Rhine for a 28-year period. First came the pacification of the Usipetes, Sicambri, and Frisians near the Rhine, then attacks increased further from the Rhine, on the Chauci, Cherusci, Chatti and Suevi (including the Marcomanni). These campaigns eventually reached and even crossed the Elbe, and in 5 CE Tiberius was able to show strength by having a Roman fleet enter the Elbe and meet the legions in the heart of Germania. Once Tiberius subdued the Germanic people between the Rhine and the Elbe, the region at least up to Weser—and possibly up to the Elbe—was made the Roman province Germania and provided soldiers to the Roman army.", "title": "History" }, { "paragraph_id": 32, "text": "However, within this period two Germanic kings formed larger alliances. Both of them had spent some of their youth in Rome; the first of them was Maroboduus of the Marcomanni, who had led his people away from the Roman activities into Bohemia, which was defended by forests and mountains, and had formed alliances with other peoples. In 6 CE, Rome planned an attack against him but the campaign was cut short when forces were needed for the Illyrian revolt in the Balkans. Just three years later (9 CE), the second of these Germanic figures, Arminius of the Cherusci—initially an ally of Rome—drew a large Roman force into an ambush in northern Germany, and destroyed the three legions of Publius Quinctilius Varus at the Battle of the Teutoburg Forest. Marboduus and Arminius went to war with each other in 17 CE; Arminius was victorious and Marboduus was forced to flee to the Romans.", "title": "History" }, { "paragraph_id": 33, "text": "Following the Roman defeat at the Teutoburg Forest, Rome gave up on the possibility of fully integrating this region into the empire. Rome launched successful campaigns across the Rhine between 14 and 16 CE under Tiberius and Germanicus, but the effort of integrating Germania now seemed to outweigh its benefits. In the reign of Augustus's successor, Tiberius, it became state policy to expand the empire no further than the frontier based roughly upon the Rhine and Danube, recommendations that were specified in the will of Augustus and read aloud by Tiberius himself. Roman intervention in Germania led to a shifting and unstable political situation, in which pro- and anti-Roman parties vied for power. Arminius was murdered in 21 CE by his fellow Germanic tribesmen, due in part to these tensions and for his attempt to claim supreme kingly power for himself.", "title": "History" }, { "paragraph_id": 34, "text": "In the wake of Arminius's death, Roman diplomats sought to keep the Germanic peoples divided and fractious. Rome established relationships with individual Germanic kings that are often discussed as being similar to client states; however, the situation on the border was always unstable, with rebellions by the Frisians in 28 CE, and attacks by the Chauci and Chatti in the 60s CE. The most serious threat to the Roman order was the Revolt of the Batavi in 69 CE, during the civil wars following the death of Nero known as the Year of the Four Emperors. The Batavi had long served as auxiliary troops in the Roman army as well as in the imperial bodyguard as the so-called Numerus Batavorum, often called the Germanic bodyguard. The uprising was led by Gaius Julius Civilis, a member of the Batavian royal family and Roman military officer, and attracted a large coalition of people both inside and outside of the Roman territory. The revolt ended following several defeats, with Civilis claiming to have only supported the imperial claims of Vespasian, who was victorious in the civil war.", "title": "History" }, { "paragraph_id": 35, "text": "The century after the Batavian Revolt saw mostly peace between the Germanic peoples and Rome. In 83 CE, Emperor Domitian of the Flavian dynasty attacked the Chatti north of Mainz (Mogontiacum). This war would last until 85 CE. Following the end of the war with the Chatti, Domitian reduced the number of Roman soldiers on the upper Rhine and shifted the Roman military to guarding the Danube frontier, beginning the construction of the limes, the longest fortified border in the empire. The period afterwards was peaceful enough that the emperor Trajan reduced the number of soldiers on the frontier. According to Edward James, the Romans appear to have reserved the right to choose rulers among the barbarians on the frontier.", "title": "History" }, { "paragraph_id": 36, "text": "Following sixty years of quiet on the frontier, 166 CE saw a major incursion of peoples from north of the Danube during the reign of Marcus Aurelius, beginning the Marcomannic Wars. By 168 (during the Antonine plague), barbarian hosts consisting of Marcomanni, Quadi, and Sarmatian Iazyges, attacked and pushed their way to Italy. They advanced as far as Upper Italy, destroyed Opitergium/Oderzo and besieged Aquileia. The Romans had finished the war by 180, through a combination of Roman military victories, the resettling of some peoples on Roman territory, and by making alliances with others. Marcus Aurelius's successor Commodus chose not to permanently occupy any territory conquered north of the Danube, and the following decades saw an increase in the defenses at the limes. The Romans renewed their right to choose the kings of the Marcomanni and Quadi, and Commodus forbid them to hold assemblies unless a Roman centurion was present.", "title": "History" }, { "paragraph_id": 37, "text": "The period after the Marconmannic Wars saw the emergence of peoples with new names along the Roman frontiers, which were probably formed by the merger of smaller groups. These new confederacies or peoples tended to border the Roman imperial frontier. Many ethnic names from earlier periods disappear. The Alamanni emerged along the upper Rhine and are mentioned in Roman sources from the third century onward. The Goths begin to be mentioned along the lower Danube, where they attacked the city of Histria in 238. The Franks are first mentioned occupying territory between the Rhine and Weser. The Lombards seem to have moved their center of power to the central Elbe. Groups such as the Alamanni, Goths, and Franks were not unified polities; they formed multiple, loosely associated groups, who often fought each other and some of whom sought Roman friendship. The Romans also begin to mention seaborne attacks by the Saxons, a term used generically in Latin for Germanic-speaking pirates. A system of defenses on both sides of the English Channel, the Saxon Shore, was established to deal with their raids.", "title": "History" }, { "paragraph_id": 38, "text": "From 250 onward, the Gothic peoples formed the \"single most potent threat to the northern frontier of Rome\". In 250 CE a Gothic king Cniva led Goths with Bastarnae, Carpi, Vandals, and Taifali into the empire, laying siege to Philippopolis. He followed his victory there with another on the marshy terrain at Abrittus, a battle which cost the life of Roman emperor Decius. In 253/254, further attacks occurred reaching Thessalonica and possibly Thrace. In 267/268 there were large raids led by the Herules in 267/268, and a mixed group of Goths and Herules in 269/270. Gothic attacks were abruptly ended in the years after 270, after a Roman victory in which the Gothic king Cannabaudes was killed.", "title": "History" }, { "paragraph_id": 39, "text": "The Roman limes largely collapsed in 259/260, during the Crisis of the Third Century (235–284), and Germanic raids penetrated as far as northern Italy. The limes on the Rhine and upper Danube was brought under control again in 270s, and by 300 the Romans had reestablished control over areas they had abandoned during the crisis. From the later third century onward, the Roman army relied increasingly on troops of Barbarian origin, often recruited from Germanic peoples, with some functioning as senior commanders in the Roman army. In the 4th century, warfare along the Rhine frontier between the Romans and Franks and Alemanni seems to have mostly consisted of campaigns of plunder, during which major battles were avoided. The Romans generally followed a policy of trying to prevent strong leaders from emerging among the barbarians, using treachery, kidnapping, and assassination, paying off rival tribes to attack them, or by supporting internal rivals.", "title": "History" }, { "paragraph_id": 40, "text": "The Migration Period is traditionally cited by historians as beginning in 375 CE, under the assumption that the appearance of the Huns prompted the Visigoths to seek shelter within the Roman Empire in 376. The end of the migration period is usually set at 586 when the Lombards invaded Italy. During this time period, numerous barbarian groups invaded the Roman Empire and established new kingdoms within its boundaries. These Germanic migrations traditionally mark the transition between antiquity and the beginning of the early Middle Ages. The reasons for the migrations of the period are unclear, but scholars have proposed overpopulation, climate change, bad harvests, famines, and adventurousness as possible reasons. Migrations were probably carried out by relatively small groups rather than entire peoples.", "title": "History" }, { "paragraph_id": 41, "text": "The Greuthungi, a Gothic group in modern Ukraine under the rule of Ermanaric, were among the first peoples attacked by the Huns, apparently facing Hunnic pressure for some years. Following Ermanaric's death, the Greuthungi's resistance broke and they moved toward the Dniester river. A second Gothic group, the Tervingi under King Athanaric, constructed a defensive earthwork against the Huns near the Dniester. However, these measures did not stop the Huns and the majority of the Tervingi abandoned Athanaric; they subsequently fled—accompanied by a contingent of Greuthungi—to the Danube in 376, seeking asylum in the Roman Empire. The emperor Valens chose only to admit the Tervingi, who were settled in the Roman provinces of Thrace and Moesia.", "title": "History" }, { "paragraph_id": 42, "text": "Due to mistreatment by the Romans, the Tervingi revolted in 377, starting the Gothic War, joined by the Greuthungi. The Goths and their allies defeated the Romans first at Marcianople, then defeated and killed emperor Valens in the Battle of Adrianople in 378, destroying two-thirds of Valens' army. Following further fighting, peace was negotiated in 382, granting the Goths considerable autonomy within the Roman Empire. However, these Goths—who would be known as the Visigoths—revolted several more times, finally coming to be ruled by Alaric. In 397, the disunited eastern Empire submitted to some of his demands, possibly giving him control over Epirus. In the aftermath of the large-scale Gothic entries into the empire, the Franks and Alemanni became more secure in their positions in 395, when Stilicho, the barbarian generalissimo who held power in the western Empire, made agreements with them.", "title": "History" }, { "paragraph_id": 43, "text": "In 401, Alaric invaded Italy, coming to an understanding with Stilicho in 404/5. This agreement allowed Stilicho to fight against the force of Radagaisus, who had crossed the Middle Danube in 405/6 and invaded Italy, only to be defeated outside Florence. That same year, a large force of Vandals, Suevi, Alans, and Burgundians crossed the Rhine, fighting the Franks but facing no Roman resistance. In 409, the Suevi, Vandals, and Alans crossing the Pyrenees into Spain, where they took possession of the northern part of the peninsula. The Burgundians seized the land around modern Speyer, Worms, and Strasbourg, territory that was recognized by the Roman Emperor Honorius. When Stilicho fell from power in 408, Alaric invaded Italy again and eventually sacked Rome in 410; Alaric died shortly thereafter. The Visigoths withdrew into Gaul where they faced a power struggle until the succession of Wallia in 415 and his son Theodoric I in 417/18. Following successful campaigns against them by the Roman emperor Flavius Constantius, the Visigoths were settled as Roman allies in Gaul between modern Toulouse and Bourdeaux.", "title": "History" }, { "paragraph_id": 44, "text": "Other Goths, including those of Athanaric, continued to live outside the empire, with three groups crossing into the Roman territory after the Tervingi. The Huns gradually conquered Gothic groups north of the Danube, of which at least six are known, from 376 to 400. Those in Crimea may never have been conquered. The Gepids also formed an important Germanic people under Hunnic rule; the Huns had largely conquered them by 406. One Gothic group under Hunnic domination was ruled by the Amal dynasty, who would form the core of the Ostrogoths. The situation outside the Roman empire in 410s and 420s is poorly attested, but it is clear that the Huns continued to spread their influence onto the middle Danube.", "title": "History" }, { "paragraph_id": 45, "text": "In 428, the Vandal leader Geiseric moved his forces across the strait of Gibraltar into north Africa. Within two years, they had conquered most of north Africa. By 434, following a renewed political crisis in Rome, the Rhine frontier had collapsed, and in order to restore it, the Roman magister militum Flavius Aetius engineered the destruction of the Burgundian kingdom in 435/436, possibly with Hunnic mercenaries, and launched several successful campaigns against the Visigoths. In 439, the Vandals conquered Carthage, which served as an excellent base for further raids throughout the Mediterranean and became the basis for the Vandal Kingdom. The loss of Carthage forced Aetius to make peace with the Visigoths in 442, effectively recognizing their independence within the boundaries of the empire. During the resulting peace, Aetius resettled the Burgundians in Sapaudia in southern Gaul. In the 430s, Aetius negotiated peace with the Suevi in Spain, leading to a practical loss of Roman control in the province. Despite the peace, the Suevi expanded their territory by conquering Mérida in 439 and Seville in 441.", "title": "History" }, { "paragraph_id": 46, "text": "By 440, Attila and the Huns had come to rule a multi-ethnic empire north of the Danube; two of the most important peoples within this empire were the Gepids and the Goths. The Gepid king Ardaric came to power around 440 and participated in various Hunnic campaigns. In 450, the Huns interfered in a Frankish succession dispute, leading in 451 to an invasion of Gaul. Aetius, by uniting a coalition of Visigoths, part of the Franks, and others, was able to defeat the Hunnic army at the Battle of the Catalaunian Plains. In 453, Attila died unexpectedly, and an alliance led by Ardaric's Gepids rebelled against the rule of his sons, defeating them in the Battle of Nedao. Either before or after Attila's death, Valamer, a Gothic ruler of the Amal dynasty, seems to have consolidated power over a large part of the Goths in the Hunnic domain. For the next 20 years, the former subject peoples of the Huns would fight among each other for preeminence.", "title": "History" }, { "paragraph_id": 47, "text": "The arrival of the Saxons in Britain is traditionally dated to 449, however, archaeology indicates they had begun arriving in Britain earlier. Latin sources used Saxon generically for seaborne raiders, meaning that not all of the invaders belonged to the continental Saxons. According to the British monk Gildas (c. 500 – c. 570), this group had been recruited to protect the Romano-British from the Picts, but had revolted. They quickly established themselves as rulers on the eastern part of the island.", "title": "History" }, { "paragraph_id": 48, "text": "In 455, in the aftermath of the death of Aetius in 453 and the murder of emperor Valentinian III in 455, the Vandals invaded Italy and sacked Rome in 455. In 456, the Romans persuaded the Visigoths to fight the Suevi, who had broken their treaty with Rome. The Visigoths and a force of Burgundians and Franks defeated the Suevi at the Battle of Campus Paramus, reducing Suevi control to northwestern Spain. The Visigoths went on to conquer all of the Iberian Peninsula by 484 except a small part that remained under Suevian control.", "title": "History" }, { "paragraph_id": 49, "text": "The Ostrogoths, led by Valamer's brother Thiudimer, invaded the Balkans in 473. Thiudimer's son Theodoric succeeded him in 476. In that same year, a barbarian commander in the Roman Italian army, Odoacer, mutinied and removed the final western Roman emperor, Romulus Augustulus. Odoacer ruled Italy for himself, largely continuing the policies of Roman imperial rule. He destroyed the Kingdom of the Rugians, in modern Austria, in 487/488. Theodoric, meanwhile, successfully extorted the Eastern Empire through a series of campaigns in the Balkans. The eastern emperor Zeno agreed to send Theodoric to Italy in 487/8. After a successful invasion, Theodoric killed and replaced Odoacer in 493, founding a new Ostrogothic kingdom. Theodoric died in 526, amid increasing tensions with the eastern empire.", "title": "History" }, { "paragraph_id": 50, "text": "Toward the end of the migration period, in the early 500s, Roman sources portray a completely changed ethnic landscape outside of the empire: the Marcomanni and Quadi disappeared, as had the Vandals. Instead, the Thuringians, Rugians, Sciri, Herules, Goths, and Gepids are mentioned as occupying the Danube frontier. From the mid-5th century onward, the Alamanni had greatly expanded their territory in all directions and launched numerous raids into Gaul. The territory under the Frankish influence had grown to encompass northern Gaul and Germania to the Elbe. The Frankish king Clovis I united the various Frankish groups in 490s, and conquered the Alamanni by 506. From the 490s onward, Clovis waged wars against the Visigoths, defeating them in 507 and taking control of most of Gaul. Clovis's heirs conquered the Thuringians by 530 and the Burgundians by 532. The continental Saxons, composed of many subgroups, were made tributary to the Franks, as were the Frisians, who faced an attack by the Danes under Hygelac in 533.", "title": "History" }, { "paragraph_id": 51, "text": "The Vandal and Ostrogothic kingdoms were destroyed in 534 and 555 respectively by the Eastern Roman (Byzantine) empire under Justinian. Around 500, a new ethnic identity appears in modern southern Germany, the Baiuvarii (Bavarians), under the patronage of Theodoric's Ostrogothic kingdom and then of the Franks. The Lombards, moving out of Bohemia, destroyed the kingdom of the Heruli in Pannonia in 510. In 568, after destroying the Gepid kingdom, the last Germanic kingdom in the Carpathian basin, the Lombards under Alboin invaded northern Italy, eventually conquering most of it. This invasion has traditionally been regarded as the end of the migration period. The eastern part of Germania, formerly inhabited by the Goths, Gepids, Vandals, and Rugians, was gradually Slavicized, a process enabled by the invasion of the nomadic Avars.", "title": "History" }, { "paragraph_id": 52, "text": "Merovingian Frankia became divided into three subkingdoms: Austrasia in the east around the Rhine and Meuse, Neustria in the west around Paris, and Burgundy in the southeast around Chalon-sur-Saône. The Franks ruled a multilingual and multi-ethnic kingdom, divided between a mostly Romance-speaking West and a mostly Germanic-speaking east, that integrated former Roman elites but remained centered on a Frankish ethnic identity. In 687, the Pippinids came to control the Merovingian rulers as mayors of the palace in Neustria. Under their direction, the subkingdoms of Frankia were reunited. Following the mayoralty of Charles Martel, the Pippinids replaced the Merovingians as kings in 751, when Charles's son Pepin the Short became king and founded the Carolingian dynasty. His son, Charlemagne, would go on to conquer the Lombards, Saxons, and Bavarians. Charlemagne was crowned Roman emperor in 800 and regarded his residence of Aachen as the new Rome.", "title": "History" }, { "paragraph_id": 53, "text": "Following their invasion in 568, the Lombards quickly conquered larger parts of the Italian peninsula. From 574 to 584, a period without a single Lombard ruler, the Lombards nearly collapsed, until a more centralized Lombard polity emerged under King Agilulf in 590. The invading Lombards only ever made up a very small percentage of the Italian population, however Lombard ethnic identity expanded to include people of both Roman and barbarian descent. Lombard power reached its peak during the reign of King Liutprand (712–744). After Liutprand's death, the Frankish King Pippin the Short invaded in 755, greatly weakening the kingdom. The Lombard kingdom was finally annexed by Charlemagne in 773.", "title": "History" }, { "paragraph_id": 54, "text": "After a period of weak central authority, the Visigothic kingdom came under the rule of Liuvigild, who conquered the Kingdom of the Suebi in 585. A Visigothic identity that was distinct from the Romance-speaking population they ruled had disappeared by 700, with the removal of all legal differences between the two groups. In 711, a Muslim army landed at Grenada; the entire Visigothic kingdom would be conquered by the Umayyad Caliphate by 725.", "title": "History" }, { "paragraph_id": 55, "text": "In what would become England, the Anglo-Saxons were divided into several competing kingdoms, the most important of which were Northumbria, Mercia, and Wessex. In the 7th century, Northumbria established overlordship over the other Anglo-Saxon Kingdoms, until Mercia revolted under Wulfhere in 658. Subsequently, Mercia would establish dominance until 825 with the death of King Cenwulf. Few written sources report on Vendel period Scandinavia from 400 to 700, however this period saw profound societal changes and the formation of early states with connections to the Anglo-Saxon and Frankish kingdoms. In 793, the first recorded Viking raid occurred at Lindisfarne, ushering in the Viking Age.", "title": "History" }, { "paragraph_id": 56, "text": "Germanic paganism refers to the traditional, culturally significant religion of the Germanic-speaking peoples. It did not form a uniform religious system across Germanic-speaking Europe, but varied from place to place, people to people, and time to time. In many contact areas (e.g. Rhineland and eastern and northern Scandinavia), it was similar to neighboring religions such as those of the Slavs, Celts, and Finnic peoples. The term is sometimes applied as early as the Stone Age, Bronze Age, or the earlier Iron Age, but it is more generally restricted to the time period after the Germanic languages had become distinct from other Indo-European languages. From the first reports in Roman sources to the final conversion to Christianity, Germanic paganism thus covers a period of around one thousand years. Scholars are divided as to the degree of continuity between the religious practices of the earlier Germanic peoples and those attested in later Norse paganism and elsewhere: while some scholars argue that Tacitus, early medieval sources, and the Norse sources indicate religious continuity, other scholars are highly skeptical of such arguments.", "title": "Religion" }, { "paragraph_id": 57, "text": "Like their neighbors and other historically related peoples, the ancient Germanic peoples venerated numerous indigenous deities. These deities are attested throughout literature authored by or written about Germanic-speaking peoples, including runic inscriptions, contemporary written accounts, and in folklore after Christianization. As an example, the second of the two Merseburg charms (two Old High German examples of alliterative verse from a manuscript dated to the ninth century) mentions six deities: Woden, Balder, Sinthgunt, Sunna, Frija, and Volla.", "title": "Religion" }, { "paragraph_id": 58, "text": "With the exception of Sinthgunt, proposed cognates to these deities occur in other Germanic languages, such as Old English and Old Norse. By way of the comparative method, philologists are then able to reconstruct and propose early Germanic forms of these names from early Germanic mythology. Compare the following table:", "title": "Religion" }, { "paragraph_id": 59, "text": "The structure of the magic formula in this charm has a long history prior to this attestation: it is first known to have occurred in Vedic India, where it occurs in the Atharvaveda, dated to around 500 BCE. Numerous other beings common to various groups of ancient Germanic peoples receive mention throughout the ancient Germanic record. One such type of entity, a variety of supernatural women, is also mentioned in the first of the two Merseburg Charms:", "title": "Religion" }, { "paragraph_id": 60, "text": "Other widely attested entities from the North and West Germanic folklore include elves, dwarfs, and the mare. (For more discussion on these entities, see Proto-Germanic folklore.)", "title": "Religion" }, { "paragraph_id": 61, "text": "The great majority of material describing Germanic mythology stems from the North Germanic record. The body of myths among the North Germanic-speaking peoples is known today as Norse mythology and is attested in numerous works, the most expansive of which are the Poetic Edda and the Prose Edda. While these texts were composed in the 13th century, they frequently quote genres of traditional alliterative verse known today as eddic poetry and skaldic poetry dating to the pre-Christian period.", "title": "Religion" }, { "paragraph_id": 62, "text": "West Germanic mythology (that of speakers of, e.g., Old English and Old High German) is comparatively poorly attested. Notable texts include the Old Saxon Baptismal Vow and the Old English Nine Herbs Charm. While most extant references are simply to deity names, some narratives do survive into the present, such as the Lombard origin myth, which details a tradition among the Lombards that features the deities Frea (cognate with Old Norse Frigg) and Godan (cognate with Old Norse Óðinn). Attested in the 7th-century Origo Gentis Langobardorum and the 8th-century Historia Langobardorum from the Italian Peninsula, the narrative strongly corresponds in numerous ways with the prose introduction to the eddic poem Grímnismál, recorded in 13th-century Iceland.", "title": "Religion" }, { "paragraph_id": 63, "text": "Very few texts make up the corpus of Gothic and other East Germanic languages, and East Germanic paganism and its associated mythic body is especially poorly attested. Notable topics that provide insight into the matter of East Germanic paganism include the Ring of Pietroassa, which appears to be a cult object (see also Gothic runic inscriptions), and the mention of the Gothic Anses (cognate with Old Norse Æsir '(pagan) gods') by Jordanes.", "title": "Religion" }, { "paragraph_id": 64, "text": "Practices associated with the religion of the ancient Germanic peoples see fewer attestations. However, elements of religious practices are discernable throughout the textual record associated with the ancient Germanic peoples, including a focus on sacred groves and trees, the presence of seeresses, and numerous vocabulary items. The archaeological record has yielded a variety of depictions of deities, a number of them associated with depictions of the ancient Germanic peoples (see Anthropomorphic wooden cult figurines of Central and Northern Europe). Notable from the Roman period are the Matres and Matronae, some having Germanic names, to whom devotional altars were set up in regions of Germania, Eastern Gaul, and Northern Italy (with a small distribution elsewhere) that were occupied by the Roman army from the first to the fifth century.", "title": "Religion" }, { "paragraph_id": 65, "text": "Germanic mythology and religious practice is of particular interest to Indo-Europeanists, scholars who seek to identify aspects of ancient Germanic culture—both in terms of linguistic correspondence and by way of motifs—stemming from Proto-Indo-European culture, including Proto-Indo-European mythology. The primordial being Ymir, attested solely in Old Norse sources, makes for a commonly cited example. In Old Norse texts, the death of this entity results in creation of the cosmos, a complex of motifs that finds strong correspondence elsewhere in the Indo-European sphere, notably in Vedic mythology.", "title": "Religion" }, { "paragraph_id": 66, "text": "Germanic peoples began entering the Roman Empire in large numbers at the same time that Christianity was spreading there, and this connection was a major factor encouraging conversion. The East Germanic peoples, the Langobards, and the Suevi in Spain converted to Arian Christianity, a form of Christianity that rejected the divinity of Christ. The first Germanic people to convert to Arianism were the Visigoths, at the latest in 376 when they entered the Roman Empire. This followed a longer period of missionary work by both Orthodox Christians and Arians, such as the Arian Wulfila, who was made missionary bishop of the Goths in 341 and translated the Bible into Gothic. The Arian Germanic peoples all eventually converted to Nicene Christianity, which had become the dominant form of Christianity within the Roman Empire; the last to convert were the Visigoths in Spain under their king Reccared in 587.", "title": "Religion" }, { "paragraph_id": 67, "text": "The areas of the Roman Empire conquered by the Franks, Alemanni, and Baiuvarii were mostly Christian already, but it appeared Christianity declined there. In 496, the Frankish king Clovis I converted to Nicene Christianity. This began a period of missionizing within Frankish territory. The Anglo-Saxons gradually converted following a mission sent by Pope Gregory the Great in 595. In the 7th century, Frankish-supported missionary activity spread out of Gaul, led by figures of the Anglo-Saxon mission such as Saint Boniface. The Saxons initially rejected Christianization, but were eventually forcibly converted by Charlemagne as a result of their conquest in the Saxon Wars in 776/777.", "title": "Religion" }, { "paragraph_id": 68, "text": "While attempts to convert the Scandinavian peoples began in 831, they were mostly unsuccessful until the 10th and 11th centuries. The last Germanic people to convert were the Swedes, although the Geats had converted earlier. The pagan Temple at Uppsala seems to have continued to exist into the early 1100s.", "title": "Religion" }, { "paragraph_id": 69, "text": "Germanic speakers developed a native script, the runes (or the fuþark), and the earliest known form of which consists of 24 characters. The runes are generally held to have been used exclusively by Germanic-speaking populations. All known early runic inscriptions are found in Germanic contexts with the potential exception of one inscription, which may indicate cultural transfer between the Germanic speakers to Slavic speakers (and may potentially be the earliest known writing among Slavic speakers).", "title": "Society and culture" }, { "paragraph_id": 70, "text": "Like other indigenous scripts of Europe, the runes ultimately developed from the Phoenician alphabet, but unlike similar scripts, the runes were not replaced by the Latin alphabet by the first century BCE. Runes remained in use among the Germanic peoples throughout their history despite the significant influence of Rome.", "title": "Society and culture" }, { "paragraph_id": 71, "text": "The precise date that Germanic speakers developed the runic alphabet is unknown, with estimates varying from 100 BCE to 100 CE. Generally accepted inscriptions in the oldest attested form of the script, called the Elder Futhark, date from 200 to 700 CE. The word rune is widely attested among Germanic languages, where it developed from Proto-Germanic *rūna and held a primary meaning of 'secret', but also other meanings such as 'whisper', 'mystery', 'closed deliberation', and 'council'. In most cases, runes appear not to have been used for everyday communication and knowledge of them may have generally been limited to a small group, for whom the term erilaR is attested from the sixth century onward.", "title": "Society and culture" }, { "paragraph_id": 72, "text": "The letters of the Elder Futhark are arranged in an order called the futhark, so named after its first six characters. The alphabet is supposed to have been extremely phonetic, and each letter could also represent a word or concept, so that, for instance, the f-rune also stood for *fehu ('cattle, property'). Such examples are known as Begriffsrunen ('concept runes'). Runic inscriptions are found on organic materials such as wood, bone, horn, ivory, and animal hides, as well as on stone and metal. Inscriptions tend to be short, and are difficult to interpret as profane or magical. They include names, inscriptions by the maker of an object, memorials to the dead, as well as inscriptions that are religious or magical in nature.", "title": "Society and culture" }, { "paragraph_id": 73, "text": "Germanic personal names are commonly dithematic, consisting of two components that may be combined freely (such as the Old Norse female personal name Sigríðr, consisting of sigr 'victory' + fríðr 'beloved'). As summarized by Per Vikstrand, \"The old Germanic personal names are, from a social and ideological point of view, characterized by three main features: religion, heroism, and family bonds. The religious aspect [of Germanic names] seems to be an inherited, Indo-European trace, which the Germanic languages share with Greek and other Indo-European languages.\"", "title": "Society and culture" }, { "paragraph_id": 74, "text": "One point of debate surrounding Germanic name-giving practice is whether name elements were considered semantically meaningful when combined. Whatever the case, an element of a name could be inherited by a male or female's offspring, leading to an alliterative lineage (related, see alliterative verse). The runestone D359 in Istaby, Sweden provides one such example, where three generations of men are connected by way of the element *wulfaz, meaning 'wolf' (the alliterative Haþuwulfaz, *Heruwulfaz, and Hariwulfaz). Sacral components to Germanic personal names are also attested, including elements such as *hailaga- and *wīha- (both usually translated as 'holy, sacred', see for example Vé), and deity names (theonyms). Deity names as first components of personal names are attested primarily in Old Norse names, where they commonly reference in particular the god Thor (Old Norse Þórr).", "title": "Society and culture" }, { "paragraph_id": 75, "text": "The ancient Germanic-speaking peoples were a largely oral culture. Written literature in Germanic languages is not recorded until the 6th century (Gothic Bible) or the 8th century in modern England and Germany. The philologist Andreas Heusler proposed the existence of various genres of literature in the \"Old Germanic\" period, which were largely based on genres found in high medieval Old Norse poetry. These include ritual poetry, epigrammatic poetry (Spruchdichtung), memorial verses (Merkdichtung), lyric, narrative poetry, and praise poetry. Heinrich Beck suggests that, on the basis of Latin mentions in late antiquity and the early Middle Ages, the following genres can be adduced: origo gentis (the origin of a people or their rulers), the fall of heroes (casus heroici), praise poetry, and laments for the dead.", "title": "Society and culture" }, { "paragraph_id": 76, "text": "Some stylistic aspects of later Germanic poetry appear to have origins in the Indo-European period, as shown by comparison with ancient Greek and Sanskrit poetry. Originally, the Germanic-speaking peoples shared a metrical and poetic form, alliterative verse, which is attested in very similar forms in Old Saxon, Old High German and Old English, and in a modified form in Old Norse. Alliterative verse is not attested in the small extant Gothic corpus. The poetic forms diverge among the different languages from the 9th century onward.", "title": "Society and culture" }, { "paragraph_id": 77, "text": "Later Germanic peoples shared a common legendary tradition. These heroic legends mostly involve historical personages who lived during the migration period (4th–6th centuries AD), placing them in highly ahistorical and mythologized settings; they originate and develop as part of an oral tradition. Some early Gothic heroic legends are already found in Jordanes' Getica (c. 551). The close link between Germanic heroic legend and Germanic language and possibly poetic devices is shown by the fact that the Germanic speakers in Francia who adopted a Romance language, do not preserve Germanic legends but rather developed their own heroic folklore—excepting the figure of Walter of Aquitaine.", "title": "Society and culture" }, { "paragraph_id": 78, "text": "Until the middle of the 20th century, the majority of scholars assumed the existence of a distinct Germanic legal culture and law. Early ideas about Germanic law have come under intense scholarly scrutiny since the 1950s, and specific aspects of it such as the legal importance of sibb, retinues, and loyalty, and the concept of outlawry can no longer be justified. Besides the assumption of a common Germanic legal tradition and the use of sources of different types from different places and time periods, there are no native sources for early Germanic law. The earliest written legal sources, the Leges Barbarorum, were all written under Roman and Christian influence and often with the help of Roman jurists, and contain large amounts of \"Vulgar Latin Law\", an unofficial legal system that functioned in the Roman provinces.", "title": "Society and culture" }, { "paragraph_id": 79, "text": "Although Germanic law never appears to have been a competing system to Roman law, it is possible that Germanic \"modes of thought\" (Denkformen) still existed, with important elements being an emphasis on orality, gesture, formulaic language, legal symbolism, and ritual. Some items in the \"Leges\", such as the use of vernacular words, may reveal aspects of originally Germanic, or at least non-Roman, law. Legal historian Ruth Schmidt-Wiegand writes that this vernacular, often in the form of Latinized words, belongs to \"the oldest layers of a Germanic legal language\" and shows some similarities to Gothic.", "title": "Society and culture" }, { "paragraph_id": 80, "text": "Warfare seems to have been a constant in Germanic society, including conflicts among and within Germanic peoples. There is no common Germanic word for \"war\", and it was not necessarily differentiated from other forms of violence. Historical information on Germanic warfare almost entirely depends on Greco-Roman sources, however their accuracy has been questioned. The core of the army was formed by the comitatus (retinue), a group of warriors following a chief. As retinues grew larger, their names could become associated with entire peoples. Many retinues functioned as auxilia (mercenary units in the Roman army).", "title": "Society and culture" }, { "paragraph_id": 81, "text": "Roman sources stress, perhaps partially as a literary topos, that the Germanic peoples fought without discipline. Germanic warriors fought mostly on foot, in tight formations in close combat. Tacitus mentions a single formation as used by the Germani, the wedge (Latin: cuneus). Cavalry was rare: in the Roman period, it mostly consisted of chiefs and their immediate retinues, who may have dismounted to fight. However, East Germanic peoples such as the Goths developed cavalry forces armed with lances due to contact with various nomadic peoples. Archaeological finds, mostly in the form of grave goods, indicate that most warriors were armed with spear, shield, and often with swords. Higher status individuals were often buried with spurs for riding. The only archaeological evidence for helmets and chain mail shows them to be of Roman manufacture.", "title": "Society and culture" }, { "paragraph_id": 82, "text": "Unlike agriculture in the Roman provinces, which was organized around the large farms known as villae rusticae, Germanic agriculture was organized around villages. When Germanic peoples expanded into northern Gaul in the 4th and 5th centuries CE, they brought this village-based agriculture with them, which increased the agricultural productivity of the land; Heiko Steuer suggests this means that Germania was more agriculturally productive than is generally assumed. Villages were not distant from each other but often within sight, revealing a fairly high population density, and contrary to the assertions of Roman sources, only about 30% of Germania was covered in forest, about the same percentage as today.", "title": "Economy and material culture" }, { "paragraph_id": 83, "text": "Based on pollen samples and the finds of seeds and plant remains, the chief grains cultivated in Germania were barley, oats, and wheat (both Einkorn and emmer), while the most common vegetables were beans and peas. Flax was also grown. Agriculture in Germania relied heavily on animal husbandry, primarily the raising of cattle, which were smaller than their Roman counterparts Both cultivation and animal husbandry methods improved with time, with examples being the introduction of rye, which grew better in Germania, and the introduction of the three-field system.", "title": "Economy and material culture" }, { "paragraph_id": 84, "text": "It is unclear if there was a special class of craftsmen in Germania, however archaeological finds of tools are frequent. Many everyday items such as dishes were made out of wood, and archaeology has found the remains of wooden well construction. The 4th-century CE Nydam and Illerup ships show highly developed knowledge of ship construction, while elite graves have revealed wooden furniture with complex joinery. Products made from ceramics included cooking, drinking, and storage, vessels, as well as lamps. While originally formed by hand, the period around 1 CE saw the introduction of the potter's wheel. Some of the ceramics produced on potter's wheels seem to have been done in direct imitation of Roman wares, and may have been produced by Romans in Germania or by Germani who had learned Roman techniques while serving in the Roman army. The shape and decoration of Germanic ceramics vary by region and archaeologists have traditionally used these variations to determine larger cultural areas. Many ceramics were probably produced locally in hearths, but large pottery kilns have also been discovered, and it seems clear that there were areas of specialized production.", "title": "Economy and material culture" }, { "paragraph_id": 85, "text": "Despite the claims of Roman writers such as Tacitus that the Germani had little iron and lacked expertise in working it, deposits of iron were commonly found in Germania and Germanic smiths were skillful metalworkers. Smithies are known from multiple settlements, and smiths were often buried with their tools. An iron mine discovered at Rudki, in the Łysogóry mountains of modern central Poland, operated from the 1st to the 4th centuries CE and included a substantial smelting workshop; similar facilities have been found in Bohemia. The remains of large smelting operations have been discovered by Ribe in Jutland (4th to 6th century CE), as well as at Glienick in northern Germany and at Heeten in the Netherlands (both 4th century CE). Germanic smelting furnaces may have produced metal that was as high-quality as that produced by the Romans. In addition to large-scale production, nearly every individual settlement seems to have produced some iron for local use. Iron was used for agricultural tools, tools for various crafts, and for weapons.", "title": "Economy and material culture" }, { "paragraph_id": 86, "text": "Lead was needed in order to make molds and for the production of jewelry, however it is unclear if the Germani were able to produce lead. While lead mining is known from within the Siegerland across the Rhine from the Roman Empire, it is sometimes theorized that this was the work of Roman miners. Another mine within Germania was near modern Soest, where again it is theorized that lead was exported to Rome. The neighboring Roman provinces of Germania superior and Germania inferior produced a great deal of lead, which has been found stamped as plumbum Germanicum (\"Germanic lead\") in Roman shipwrecks.", "title": "Economy and material culture" }, { "paragraph_id": 87, "text": "Deposits of gold are not found naturally within Germania and had to either be imported or could be found having naturally washed down rivers. The earliest known gold objects made by Germanic craftsmen are mostly small ornaments dating from the later 1st century CE. Silver working likewise dates from the first century CE, and silver often served as a decorative element with other metals. From the 2nd century onward, increasingly complex gold jewelry was made, often inlaid with precious stones and in a polychrome style. Inspired by Roman metalwork, Germanic craftsmen also began working with gold and silver-gilt foils on belt buckles, jewelry, and weapons. Pure gold objects produced in the late Roman period included torcs with snakeheads, often displaying filigree and cloisonné work, techniques that dominated throughout Germanic Europe.", "title": "Economy and material culture" }, { "paragraph_id": 88, "text": "Clothing does not generally preserve well archaeologically. Early Germanic clothing is shown on some Roman stone monuments such as Trajan's Column and the Column of Marcus Aurelius, and is occasionally discovered in finds from in moors, mostly from Scandinavia. Frequent finds include long trousers, sometimes including connected stockings, shirt-like gowns (Kittel) with long sleeves, large pieces of cloth, and capes with fur on the inside. All of these are thought to be male clothing, while finds of tubular garments are thought to be female clothing. These would have reached to the ankles and would likely have been held in place by brooches at the height of the shoulders, as shown on Roman monuments. On Roman depictions, the dress was gathered below the breast or at the waist, and there are frequently no sleeves. Sometimes a blouse or skirt is depicted below the dress, along with a neckerchief around the throat. By the middle of the 5th century CE, both men and women among the continental Germanic peoples came to wear a Roman-style tunic as their most important piece of clothing. This was secured at the waist and likely adopted due to intensive contact with the Roman world. The Romans typically depict Germanic men and women as bareheaded, although some head-coverings have been found. Although Tacitus mentions an undergarment made of linen, no examples of these have been found.", "title": "Economy and material culture" }, { "paragraph_id": 89, "text": "Surviving examples indicate that Germanic textiles were of high quality and mostly made of flax and wool. Roman depictions show the Germani wearing materials that were only lightly worked. Surviving examples indicate that a variety of weaving techniques were used. Leather was used for shoes, belts, and other gear. Spindles, sometimes made of glass or amber, and the weights from looms and distaffs are frequently found in Germanic settlements.", "title": "Economy and material culture" }, { "paragraph_id": 90, "text": "Archaeology shows that from at least the turn of the 3rd century CE larger regional settlements in Germania existed that were not exclusively involved in an agrarian economy, and that the main settlements were connected by paved roads. The entirety of Germania was within a system of long-distance trade. Migration-period seaborne trade is suggested by Gudme on the Danish island of Funen and other harbors on the Baltic.", "title": "Economy and material culture" }, { "paragraph_id": 91, "text": "Roman trade with Germania is poorly documented. Roman merchants crossing the Alps for Germania are recorded already by Caesar in the 1st century BCE. During the imperial period, most trade probably took place in trading posts in Germania or at major Roman bases. The most well-known Germanic export to the Roman Empire was amber, with a trade centered on the Baltic coast. Economically, however, amber is likely to have been fairly unimportant. The use of Germanic loanwords in surviving Latin texts suggests that besides amber (glaesum), the Romans also imported the feathers of Germanic geese (ganta) and hair dye (sapo). Germanic slaves were also a major commodity. Archaeological discoveries indicate that lead was exported from Germania as well, perhaps mined in Roman-Germanic \"joint ventures\".", "title": "Economy and material culture" }, { "paragraph_id": 92, "text": "Products imported from Rome are found archaeologically throughout the Germanic sphere and include vessels of bronze and silver, glassware, pottery, brooches; other products such as textiles and foodstuffs may have been just as important. Rather than mine and smelt non-ferrous metals themselves, Germanic smiths seem to have often preferred to melt down finished metal objects from Rome, which were imported in large numbers, including coins, metal vessels, and metal statues. Tacitus mentions in Germania chapter 23 that the Germani living along the Rhine bought wine, and Roman wine has been found in Denmark and northern Poland. Finds of Roman silver coinage and weapons might have been war booty or the result of trade, while high quality silver items may have been diplomatic gifts. Roman coinage may have acted as a form of currency as well.", "title": "Economy and material culture" }, { "paragraph_id": 93, "text": "The use of genetic studies to investigate the Germanic past is controversial, with scholars such as Guy Halsall suggesting it could represent a hearkening back to 19th-century ideas of race. Sebastian Brather, Wilhelm Heizmann, and Steffen Patzold write that genetics studies are of great use for demographic history, but cannot give us any information about cultural history. In a 2013 book which reviewed studies made up until then, scholars noted that most Germanic speakers today have a Y-DNA that is a mixture including haplogroup I1, R1a1a, R1b-P312 and R1b-U106; however, the authors also note that these groups are older than Germanic languages and found among speakers of other languages.", "title": "Genetics" }, { "paragraph_id": 94, "text": "The rediscovery of Tacitus's Germania in the 1450s was used by German humanists to claim a glorious classical past for their nation that could compete with that of Greece and Rome, and to equate the \"Germanic\" with the \"German\". While the humanists' notion of the \"Germanic\" was initially vague, later it was narrowed and used to support a notion of German(ic) superiority to other nations. Equally important was Jordanes's Getica, rediscovered by Aeneas Sylvius Piccolomini in the mid-15th century and first printed in 1515 by Konrad Peutinger, which depicted Scandinavia as the \"womb of nations\" (Latin: vagina nationum) from which all the historical northeastern European barbarians migrated in the distant past. While treated with suspicion by German scholars, who preferred the indigenous origin given by Tacitus, this motif became very popular in contemporary Swedish Gothicism, as it supported Sweden's imperial ambitions. Peutinger printed the Getica together with Paul the Deacon's History of the Lombards, so that the Germania, the Getica, and the History of the Lombards formed the basis for the study of the Germanic past. Scholars did not clearly differentiate between the Germanic peoples, Celtic peoples, and the \"Scythian peoples\" until the late 18th century with the discovery of Indo-European and the establishment of language as the primary criterion for nationality. Before that time, German scholars considered the Celtic peoples to be part of the Germanic group.", "title": "Modern reception" }, { "paragraph_id": 95, "text": "The beginning of Germanic philology proper starts around the turn of the 19th century, with Jacob and Wilhelm Grimm being the two most significant founding figures. Their oeuvre included various monumental works on linguistics, culture, and literature. Jacob Grimm offered many arguments identifying the Germans as the \"most Germanic\" of the Germanic-speaking peoples, many of which were taken up later by others who sought to equate \"Germanicness\" (German: Germanentum) with \"Germanness\" (German: Deutschtum). Grimm also argued that the Scandinavian sources were, while much later, more \"pure\" attestations of \"Germanness\" than those from the south, an opinion that remains common today. German nationalist thinkers of the völkisch movement placed a great emphasis on the connection of modern Germans to the Germania using Tacitus to prove the purity and virtue of the German people, which had allowed them to conquer the decadent Romans. German historians used the Germanic past to argue for a liberal, democratic form of government and a unified German state. Contemporary Romantic nationalism in Scandinavia placed more weight on the Viking Age, resulting in the movement known as Scandinavism.", "title": "Modern reception" }, { "paragraph_id": 96, "text": "In the late 19th century, Gustaf Kossinna developed several widely accepted theories tying archaeological finds of specific assemblages of objects. Kossina used his theories to extend Germanic identity back to the Neolithic period and to state with confidence when and where various Germanic and other peoples had migrated within Europe. In the 1930s and 40s, the Nazi Party made use of notions of Germanic \"purity\" reaching back into the earliest prehistoric times. Nazi ideologues also used the \"Germanic\" nature of peoples such as the Franks and Goths to justify territorial annexations in northern France, Ukraine, and the Crimea. Scholars reinterpreted Germanic culture to justify the Nazis' rule as anchored in the Germanic past, emphasizing noble leaders and warlike retinues who dominated surrounding peoples. After 1945, these associations led to a scholarly backlash and re-examining of Germanic origins. Many medieval specialists have even demanded that scholars avoid the term Germanic altogether since it is too emotionally charged, adding that it has been politically abused and creates more confusion than clarity.", "title": "Modern reception" }, { "paragraph_id": 97, "text": "Classical and medieval sources", "title": "External links" } ]
The Germanic peoples were historical groups of people that once occupied Northwestern and Central Europe and Scandinavia during antiquity and into the early Middle Ages. Since the 19th century, they have traditionally been defined by the use of ancient and early medieval Germanic languages and are thus equated at least approximately with Germanic-speaking peoples, although different academic disciplines have their own definitions of what makes someone or something "Germanic". The Romans named the area belonging to North-Central Europe in which Germanic peoples lived Germania, stretching east to west between the Vistula and Rhine rivers and north to south from southern Scandinavia to the upper Danube. In discussions of the Roman period, the Germanic peoples are sometimes referred to as Germani or ancient Germans, although many scholars consider the second term problematic since it suggests identity with present-day Germans. The very concept of "Germanic peoples" has become the subject of controversy among contemporary scholars. Some scholars call for its total abandonment as a modern construct since lumping "Germanic peoples" together implies a common group identity for which there is little evidence. Other scholars have defended the term's continued use and argue that a common Germanic language allows one to speak of "Germanic peoples", regardless of whether these ancient and medieval peoples saw themselves as having a common identity. While several historians and archaeologists continue to use the term "Germanic peoples" to refer to historical people groups from the 1st to 4th centuries CE, the term is no longer used by most historians and archaeologists for the period around the Fall of the Roman Empire and the Early Middle Ages. Scholars generally agree that it is possible to refer to Germanic-speaking peoples after 500 BCE. Archaeologists usually connect the early Germanic peoples with the Jastorf culture of the Pre-Roman Iron Age, which is found in Denmark and northern Germany from the 6th to 1st centuries BCE, around the same time that the First Germanic Consonant Shift is theorized to have occurred; this sound change led to recognizably Germanic languages. From northern Germany and southern Scandinavia, the Germanic peoples expanded south, east, and west, coming into contact with the Celtic, Iranic, Baltic, and Slavic peoples. Roman authors first described Germanic peoples near the Rhine in the 1st century BCE, while the Roman Empire was establishing its dominance in that region. Under Emperor Augustus, the Romans attempted to conquer a large area of Germania, but they withdrew after a major Roman defeat at the Battle of the Teutoburg Forest in 9 CE. The Romans continued to control the Germanic frontier closely by meddling in its politics, and they constructed a long fortified border, the Limes Germanicus. From 166 to 180 CE, Rome was embroiled in a conflict against the Germanic Marcomanni, Quadi, and many other peoples known as the Marcomannic Wars. The wars reordered the Germanic frontier, and afterwards, new Germanic peoples appear for the first time in the historical record, such as the Franks, Goths, Saxons, and Alemanni. During the Migration Period (375–568), various Germanic peoples entered the Roman Empire and eventually took control of parts of it and established their own independent kingdoms after the collapse of Western Roman rule. The most powerful of them were the Franks, who conquered many of the others. Eventually, the Frankish king Charlemagne claimed the title of Holy Roman Emperor for himself in 800. Archaeological finds suggest that Roman-era sources portrayed the Germanic way of life as more primitive than it actually was. Instead, archaeologists have unveiled evidence of a complex society and economy throughout Germania. Germanic-speaking peoples originally shared similar religious practices. Denoted by the term Germanic paganism, they varied throughout the territory occupied by Germanic-speaking peoples. Over the course of Late Antiquity, most continental Germanic peoples and the Anglo-Saxons of Britain converted to Christianity, but the Saxons and Scandinavians converted only much later. The Germanic peoples shared a native script from around the first century or before, the runes, which was gradually replaced with the Latin script, although runes continued to be used for specialized purposes thereafter. Traditionally, the Germanic peoples have been seen as possessing a law dominated by the concepts of feuding and blood compensation. The precise details, nature and origin of what is still normally called "Germanic law" are now controversial. Roman sources state that the Germanic peoples made decisions in a popular assembly but that they also had kings and war leaders. The ancient Germanic-speaking peoples probably shared a common poetic tradition, alliterative verse, and later Germanic peoples also shared legends originating in the Migration Period. The publishing of Tacitus's Germania by humanist scholars in the 1400s greatly influenced the emerging idea of "Germanic peoples". Later scholars of the Romantic period, such as Jacob and Wilhelm Grimm, developed several theories about the nature of the Germanic peoples that were highly influenced by romantic nationalism. For those scholars, the "Germanic" and modern "German" were identical. Ideas about the early Germans were also highly influential among and were influenced and co-opted by the nationalist and racist völkisch movement and later by the Nazis, which led in the second half of the 20th century to a backlash against many aspects of earlier scholarship.
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https://en.wikipedia.org/wiki/Germanic_peoples