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 onwards, the works of directors of the so-called Polish Film School had a great influence on the contemporary trends such as French New Wave, Italian neorealism or even late Classical Hollywood cinema.

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 the mid 1980s, Algerian cinema began to go through a long period of lethargy where major productions became rare.

From a modern perspective these figures may seem small, but in the world of Greek city-states Athens was huge: most of the thousand or so Greek cities could only muster 1000 – 1500 adult male citizens and Corinth, a major power, had at most 15, 000 but in some very seldom cases more.

From these ports to major populations centres and markets in Europe or Asia is several thousands of kilometers.

From the unexpected realism of his first major figure — inspired by his 1875 trip to Italy — to the unconventional memorials whose commissions he later sought, Rodin's reputation grew, such that he became the preeminent French sculptor of his time.

From 1512, Maximilian I became Dürer's major patron.

From 1945 to 1948, relief organizations ( International Tuberculosis Campaign or Joint Enterprises ) vaccinated over 8 million babies in eastern Europe and prevented the predicted increase of TB after a major war.

From the 12th century, major advances in the chemical arts shifted from Arab lands to western Europe.

From 1987 to 1991, he served as major general, and then was promoted to lieutenant general.

From the end of 1949, new transmitters were steadily opened to serve other major conurbations, and then smaller areas of population.

From 1958 to 1965, ARPA's emphasis centered on major national issues, including space, ballistic missile defense, and nuclear test detection.

From 1976 to 1981, DARPA's major thrusts were dominated by air, land, sea, and space technology, tactical armor and anti-armor programs, infrared sensing for space-based surveillance, high-energy laser technology for space-based missile defense, antisubmarine warfare, advanced cruise missiles, advanced aircraft, and defense applications of advanced computing.

From 1900, the Pathé company films also frequently copied and varied the ideas of the British film-makers, without making any major innovations in narrative film construction, but eventually the sheer volume of their production led to their film-makers giving a further precision and polish to the details of film continuity.

From the beginning of World War I the German Empire had seen Eastern Europe — mainly Russia — as a major source of vital products and raw materials for sustaining the capacity of the nation, both during the war and after.

From 2007, Taipei's Department of Cultural Affairs also began permitting graffiti on fences around major public construction sites.

From 1969 until the late 1980s, Hee Haw was produced by Yongestreet Productions, named after Yonge Street, a major thoroughfare in Toronto.

From November 2011 to January 2012 all three major credit rating agencies downgraded Hungarian debt to a non-investment speculative grade, commonly called " junk status ".

From 1879 they were joined by the evangelical revivalism of the Salvation Army, which attempted to make major inroads in the growing urban centres.

From the 1980s Scottish literature enjoyed another major revival, particularly associated with a group of Glasgow writers focused around critic, poet and teacher Philip Hobsbaum and editor Peter Kravitz.

From 132 to 136, the Jewish leader Simon Bar Kokhba led another major revolt against the Romans, again renaming the country " Israel " ( see Bar Kochba Revolt coinage ).

From the 16th century to the early 18th century, Afghanistan was divided in to three major areas.

From the 1920s until the late 1980s, the town of Borehamwood was home to one of the major British film studio complexes, including the MGM-British Studios.

From the 14th to 11th centuries BC Assyria once more became a major power with the rise of the Middle Assyrian Empire which dominated the whole of Mesopotamia and much of the Near East and Anatolia.

From these accounts, it is known that the Chinese banned the practice of using smallpox material from patients who actually had the full-blown disease of Variola major ( considered too dangerous ); instead they used proxy material of a cotton plug inserted into the nose of a person who had already been inoculated and had only a few scabs, i. e. Variola minor.

From the 16th to the 18th centuries, Commedia dell ' arte performers improvised based on a broad outline in the streets of Italy and in the 1890s theatrical theorists and directors such as Russian, Konstantin Stanislavski and the French, Jacques Copeau, founders of two major streams of acting theory, both heavily utilised improvisation in acting training and rehearsal.

From 1972, the three major domestic airlines ( JAL, ANA, and JAS ) were allocated certain routes, with JAL and ANA sharing trunk routes, and ANA and JAS sharing local feeder routes.