During the 1950s there were as many as 25,000 schools in the Congo.

During the early 1950s the board was divided on whether to defend communists persecuted under McCarthyism.

During the late 1950s it was sought by two rail historians, George Horn and Martin Schachne, but they did not gain access to the tunnel itself.

During the 1950s, the National Football League had grown to rival Major League Baseball as one of the most popular professional sports leagues in the United States.

During the 1950s, however, Graham began distancing himself from the older fundamentalism and, in preparation for his 1957 New York Crusade, he sought broad ecumenical sponsorship.

During his early journalism career, Marker became increasingly interested in filmmaking and experimented with photography in the early 1950s.

During the 1940s and 1950s, Casablanca was a major centre of anti-French rioting.

During the late 1950s and early 1960s Brubeck canceled several concerts because the club owners or hall managers continued to resist the idea of an integrated band on their stages.

During the 1950s, Kaye visited Australia, where he played " Buttons " in a production of Cinderella in Sydney.

During World War II and through the 1950s, high frequency (" short wave ") radio was widely used for military and diplomatic communication, and could be intercepted at great distances.

During the 1950s and 1960s, Peter van de Kamp of Swarthmore College made another prominent series of detection claims, this time for planets orbiting Barnard's Star.

During the 1950s, 1960s and 1970s, several events occurred which raised the public awareness of harm to the environment caused by man.

During the 1950s and 1960s, the electric guitar became the most important instrument in pop music.

During Japanese cinema's ' Golden Age ' of the 1950s, successful films included Rashomon ( 1950 ), Seven Samurai ( 1954 ) and The Hidden Fortress ( 1958 ) by Akira Kurosawa, as well as Yasujirō Ozu's Tokyo Story ( 1953 ) and Ishirō Honda's Godzilla ( 1954 ).

During Indian cinema's ' Golden Age ' of the 1950s, it was producing 200 films annually, while Indian independent films gained greater recognition through international film festivals.

During the 1950s and 60s, Afghanistan was able to use the Russian and American need for allies during the Cold War as a way to receive economic assistance from both countries.

During his career as a director, he retained an early ambition to teach science, and after his career declined in the 1950s he made some educational TV films related to science subjects.

During World War II, the urgent need for cheap, available food preservatives led to it being used again, but it was finally banned in the 1950s.

During the 1950s, when the independence of Ghana was in sight, demands grew for a separate Ewe state, an idea that Kwame Nkrumah, leader of the Gold Coast independence movement, opposed.

During the early 1950s, Groucho described his perfect woman: “ Someone who looks like Marilyn Monroe and talks like George S. Kaufman .”

During the late 1950s, high-stakes games such as Twenty One and The $ 64, 000 Question began a rapid rise in popularity.

During the 1950s — as a result of these improvements and the strong international export prices — beef, cotton, and coffee became significant export products for the first time.

During the later 1950s, Great Britain emerged as a producer of horror films.

During the 1950s, Holden dominated the Australian car market.

During the 1950s and 1960s the skyline of London altered dramatically as tower blocks were erected, although these later proved unpopular.

During the next five years the leaders of the Fair Deal reluctantly backed down from the optimistic expectations of the New Deal.

During the Late Bronze Age circa 2000 BC, they created an empire, the Hittite New Kingdom, which reached its height in the 14th century BC, controlling much of Asia Minor.

During this term Johnson also made a concerted effort to increase his sphere of interactions ; his higher profile was exemplified by a biographical sketch published in the New York Times in May 1849, describing him as an excellent committee worker and investigator.

During the ensuing 15 years, many countercultural and New Left enterprises sprang up and developed large constituencies within the city.

During its final two years of existence, the AFL teams won upset victories over the NFL teams in Super Bowl III and IV, the former New York Jets victory was considered one of the biggest upsets in American sports history.

During the war, Nin sent her books to Frances Steloff of the Gotham Book Mart in New York for safekeeping.

During the campaign for the New Hampshire primary, reports of an extramarital affair with Gennifer Flowers surfaced.

During 1971 and 1972 B evolved into " New B " and then C, with the preprocessor being added in 1972 and early 1973 at the urging of Alan Snyder.

During the building boom of the 19th century in the eastern seaboard cities of Boston and New York City, for example, locally made bricks were often used in construction in preference to the brownstones of New Jersey and Connecticut for these reasons.

* A bust and plaque located at his last residence, in New York City at 309 W. 57th Street, inscribed: " The Great Hungarian Composer / Béla Bartók / ( 1881 – 1945 ) / Made His Home In This House / During the Last Year of His Life ".

During Selig's terms as Executive Council Chairman ( from 1992 – 1998 ) and Commissioner, new stadiums have opened in Arizona, Atlanta, Cincinnati, Cleveland, Colorado, Detroit, Houston, Milwaukee, Philadelphia, Pittsburgh, San Diego, San Francisco, Seattle, Arlington, St. Louis, Washington, D. C., New York City ( Flushing, Queens and the Bronx ), Minneapolis, and Miami.

During most of the colonial period, Costa Rica was the southernmost province of the Captaincy General of Guatemala, which was nominally part of the Viceroyalty of New Spain ( i. e., Mexico ), but which in practice operated as a largely autonomous entity within the Spanish Empire.

During the Anglo-French War ( 1627 – 1629 ), under Charles I, by 1629 the Kirkes took Quebec City, Sir James Stewart of Killeith, Lord Ochiltree planted a colony on Cape Breton Island at Baleine, Nova Scotia and Alexander ’ s son, William Alexander, 1st Earl of Stirling established the first incarnation of “ New Scotland ” at Port Royal.

During the Qing Dynasty many philosophers objected against Neo-Confucianism and there was a return to the Han Dynasty Confucianism, and also the reprise of the controversy between Old Text and New Text.

During the 1930s and early 1940s, Alston created illustrations for magazines such as Fortune, Mademoiselle, The New Yorker, Melody Maker and others.

During this time Alston founded the Harlem Artists ’ Guild with Savage and Elba Lightfoot to work towards equality in WPA art programs in New York.

During the War of the Grand Alliance, on orders from the province of New York, Massachusetts, Kidd captured an enemy privateer, which duty he was commissioned to perform off of the New England coast.

During this period the CCC was called in to provide disaster relief following 1937 floods in New York, Vermont and the Ohio and Mississippi River Valleys, and response and clean-up after the 1938 hurricane in New England.

During the mid-1970s, Hip-hop music and culture began to emerge, originating among urban African Americans and Latinos in New York City.

During his fourth trip to New York in 1953 Thomas became gravely ill and fell into a coma from which he did not recover.

During his stay in New Guinea, he was invited to accompany the Whitney South Seas Expedition to the Solomon Islands.