From about 1955 he started to work on sheaf theory and homological algebra, producing the influential " Tôhoku paper " ( Sur quelques points d ' algèbre homologique, published in 1957 ) where he introduced Abelian categories and applied their theory to show that sheaf cohomology can be defined as certain derived functors in this context.

From 1912 until his death in 1955, Cy Young lived and worked on his farm.

From 1919 to 1955 the Progressive Education Association founded by Stanwood Cobb and others worked to promote a more student-centered approach to education.

From 16 May – 17 June 1955, Nikolai Bulganin and Anastas Mikoyan visited Yugoslavia and Khrushchev renounced the expulsion of Yugoslavia from the Communist bloc.

From 1955 to 1965, Guattari edited and contributed to La Voie Communiste ( Communist Way ), a Trotskyist newspaper.

From 1950 to 1955, Simon studied mathematical economics and during this time, together with David Hawkins, discovered and proved the Hawkins – Simon theorem on the “ conditions for the existence of positive solution vectors for input-output matrices.

From August 8 to August 20, 1955, the United Nations held the International Conference on the Peaceful Uses of Atomic Energy in Geneva, Switzerland.

From 1955 the Guard was organised into a Headquarters Company, a Garrison Platoon, a Reconnaissance Company and two Training Companies.

From 1953 to 1955, she was the president of the Folklore Society, although since her death various members of the society have attempted to dissociate the organisation from her and the Murrayite theory of the Witch-Cult.

From 1947 until 1955 his mother underwent treatment for Pott disease.

These included It Came From Beneath The Sea ( 1955 ), Jason and the Argonauts ( 1963 ), The Golden Voyage of Sinbad ( 1974 ) and Clash Of The Titans ( 1981 ).

From 25 January 1955, through mid-1956 Argentina maintained the summer station Teniente Esquivel at Ferguson Bay on the southeastern coast of Thule Island.

From 1955 to 1960, Williams maintained an average OPS of 1. 092, as compared with. 950 for Aaron.

From December 1947 to May 1955 Gombrowicz worked as a bank clerk in Banco Polaco, the Argentine branch of Pekao SA Bank.

From 1955 to 1972, their ideas were pursued during Project Rover, which explored the use of nuclear reactors to power rockets.

From 1951 to 1955 he was a member of the National Assembly, the parliament of Czechoslovakia.

From 1952 to 1955, he served in Berlin as the Economic Reporting Officer in the Eastern Affairs Division, as an adviser on the staff of the United States High Commissioner for Germany.

From 1951 to 1955, the FBI operated a secret " Responsibilities Program " that distributed anonymous documents with evidence from FBI files of Communist affiliations on the part of teachers, lawyers, and others.

From 1951 to 1955, he worked as an instructor in psychology at the École Normale Supérieure at the invitation of Althusser.

From 1955 he was a board member of the Swedish Social Democratic Youth League and lectured at the Youth League College Bommersvik.

From October 15, 1955 to September 1956, ABC-TV aired a live, hour-long television version once a month on Saturday nights ( sponsored by Ralston-Purina ), pre-empting one hour of the then-90-minute Ozark Jubilee.

From 1955 – 57, Al Gannaway produced both The Country Show and Stars of the Grand Ole Opry, filmed programs syndicated by Flamingo Films.

From 1955 to 1960, Chiang administered the construction and completion of Taiwan's highway system.

From 21 September 1955, the Egypt / Israel Demilitarized Zone was occupied by Israel armed forces, Secretary-General Dag Hammarskjöld and the Chief of Staff UNTSO had engaged in efforts to secure the implementation of a plan for withdrawal of Israel armed forces and removal of Egyptian Forces from prohibited positions.

From 1764 onwards, there was a gradual change from a slave-based society to one based on production for domestic consumption and export.

From Pyramid onwards, Tosh was replaced by Stuart Elliott of Cockney Rebel.

From Vulture Culture onwards, Richard Cottle played as a regular member on synthesizers and saxophone.

From 1850 onwards he became well known as a critic and essay-writer, and in 1860 he began working on his magnum opus, his History of Music, which was published at intervals from 1862 in five volumes, the last two ( 1878, 1882 ) being edited and completed by Otto Kade and Wilhelm Langhans.

From the 17th century onwards, " scandalous memoirs " by supposed libertines, serving a public taste for titillation, have been frequently published.

From about 1697 onwards ( La caduta del Decemviri ), influenced partly perhaps by the style of Giovanni Bononcini and probably more by the taste of the viceregal court, his opera arias become more conventional and commonplace in rhythm, while his scoring is hasty and crude, yet not without brilliance ( L ' Eraclea, 1700 ), the oboes and trumpets being frequently used, and the violins often playing in unison.

From Emperor Claudius ( reigned AD 41 – 54 ) onwards, Varro's calculation ( see below ) superseded other contemporary calculations.

From the 4th century Christianization of the Roman Empire onwards such shrines, or the framework enclosing them, are often called by the Biblical term tabernacle, which becomes extended to any elaborated framework for a niche, window or picture.

From 1852 onwards, Disraeli's career would also be marked by his often intense rivalry with William Ewart Gladstone, who eventually rose to become leader of the Liberal Party.

From May 1943 onwards there was very close cooperation between the British and American military intelligence organisations.

From 1973 onwards Bubbles increasingly avoided credits for his artwork, typically working anonymously or occasionally adopting alternative pseudonyms.

From the April 1914 one-reeler Twenty Minutes of Love onwards he was writing and directing most of his films, by 1916 he was also producing them, and from 1918 he was even composing the music for them.

From the Hellenic system onwards, the policy rationale for requiring the payment of monetary compensation for wrongs committed has involved the avoidance of feuding between clans and families.

From the late 17th century onwards a whole body of literature known as the Han Kitab developed amongst the Hui Muslims of China who infused Islamic thought with Confucianism.

From the 1550s onwards, the use of gunpowder weapons solidified infantry's dominance of the battlefield and began to allow true mass armies to develop.

From 1981 and each year onwards information that corresponds to a population and housing census is retrieved from registers.

From 1851 onwards the census shows the stated age and relationship to the head of household for each individual.

From the mid-fourth century BC onwards, evidence of the Greek use of crossbows becomes more dense and varied: Arrow firing machines ( katapeltai ) are briefly mentioned by Aeneas Tacticus in his treatise on siegecraft written around 350 BC.

From here onwards there are several sub branches.

From the mid-fourth century BC onwards, evidence of the Greek use of arrow-shooting machines becomes more dense and varied: Arrow firing machines ( katapaltai ) are briefly mentioned by Aeneas Tacticus in his treatise on siegecraft written around 350 BC.

From the time of Deng Xiaoping onwards, there has been a drift of focus towards a Marxist-inspired, moderated by Conficianism, nationalist perspective, and consideration of China's contemporary international status became of paramount importance in historical studies.

From the 16th century onwards, evidence of cranks and connecting rods integrated into machine design becomes abundant in the technological treatises of the period: Agostino Ramelli's The Diverse and Artifactitious Machines of 1588 alone depicts eighteen examples, a number that rises in the Theatrum Machinarum Novum by Georg Andreas Böckler to 45 different machines, one third of the total.

From the 1980s onwards, computers ( and their monitors ) have been used for both data processing and entertainment, while televisions have implemented some computer functionality.

From 1906 onwards, Jones was an active member of the International Phonetic Association, and was Assistant Secretary from 1907 to 1927, Secretary from 1927 to 1949, and President from 1950 to 1967.

From 1718 onwards, he lectured in chemistry in Amsterdam.