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 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 that time until 1972 the Astronomer Royal was Director of the Royal Observatory Greenwich.

From 1972 to 2006, there was a dramatic reduction in the number of feral honey bees in the US, which are now almost absent.

From the late 1950s until the early 1970s, Charlton remained a mainstay of the Second Division before relegation to the Third Division in 1972 caused the team's support to drop, and even a promotion in 1975 back to the second division did little to re-invigorate the team's support and finances.

From 1972 to 1981, Sagan was the Associate Director of the Center for Radio Physics and Space Research at Cornell.

From 1972 to 1999, Exxon was the corporate name of the company previously known as Standard Oil Company of New Jersey or Jersey Standard.

From 1972 to 1986, ELO accumulated 27 Top-40 hit singles in both the UK and the US.

From 1961 to 1972, the Soviet Union caught 138 gray whales ( they originally reported not having taken any ).

From 1972 to 1975 NASA launched the AEROS and AEROS B satellites to study the F region.

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.

From 1965 to 1972 it had a caravan camp and main watching platform at Achnahannet, and sent observers to other locations up and down the loch.

From 1972, aluminium-bronze 5 markka were also issued.

From 1972 through 1980, the team nickname was officially " Oakland A's ," although, during that time, the Commissioner's Trophy, given out annually to the winner of baseball's World Series, still listed the team's name as the " Oakland Athletics " on the gold-plated pennant representing the Oakland franchise.

From 1957 until her final disc for the company in 1972, she produced a steady stream of two or three albums per year which usually included standards ( often arranged quite different from the original ), her own compositions, and material from young artists.

From 1972 to 1987, Ruger also made a less expensive version of the # 1, the # 3.

From 1960 to about 1965, and from 1972 to 1974, they wore blue helmets ; from 1966 to 1971, the helmets were silver ; and they were white from 1975 to 1998.

From 1972, Guy, Potger and Woodley planned on reforming the Seekers without Durham.

From 1972 to 1974, this version was demonstrated and evaluated in the United States aboard the aircraft carriers USS Guam and USS Guadalcanal, and at various other centres.

From 1972, when he felt he wasn't being appreciated, he would scream, " I've come all the way from Great Portland Street.

From the 1970s the opera has had a number of revivals, both as concert performances ( including Rome 1972, Concertgebouw ( Amsterdam ) 1977 and Konzerthaus, Vienna 1998 ) as well as fully staged productions at the Teatro Regio, Turin, in 2002 and the Thessaloniki Opera 2008.

From early 1971, he opposed, with increasing vehemence, Heath's approach to Northern Ireland, the greatest breach with his party coming over the imposition of direct rule in 1972.

From 1948 until the early 1970s between 800, 000 to 1, 000, 000 Mizrachi and Sephardic Jews either fled from their homes or were expelled from Arab and Islamic countries ; 260, 000 reached Israel between 1948 – 1951, and 600, 000 by 1972.

From 1972 to 2006 an Italian acting award, " The Rudolph Valentino Award ", was handed out every year.

* 1972 I Can Count More, My Vest is White, Animal Book, Animals From Our Land, Animals From Other Countries