1954
First atomic submarine Nautilus launched (Jan. 21). Five U.S. congressmen shot on floor of House as Puerto Rican nationalists fire from spectators' gallery; all five recover (March 1). Soviet Union grants sovereignty to East Germany (March 23). Army v. McCarthy inquiry-Senate subcommittee report blames both sides (April 22-June 17). Dien Bien Phu, French military outpost in Vietnam, falls to Vietminh army (May 7). (For detailed chronology, see Vietnam War.) U.S. Supreme Court (in Brown v. Board of Education of Topeka) unanimously bans racial segregation in public schools (May 17). Eisenhower launches world atomic pool without Soviet Union (Sept. 6). Eight-nation Southeast Asia defense treaty (SEATO) signed at Manila (Sept. 8). Dr. Jonas Salk starts inoculating children against polio. Algerian War of Independence against France begins (Nov.); France struggles to maintain colonial rule until 1962 when it agrees to Algeria's independence. William Faulkner's A Fable wins Pulitzer.
1955
Nikolai A. Bulganin becomes Soviet premier, replacing Malenkov (Feb. 8). Churchill resigns; Anthony Eden succeeds him (April 6). West Germany becomes a sovereign state (May 5). Western European Union (WEU) comes into being (May 6). Warsaw Pact, east European mutual defense agreement, signed (May 14). Argentina ousts Perón (Sept. 19). President Eisenhower suffers coronary thrombosis in Denver (Sept. 24). Rosa Parks refuses to sit at the back of the bus. Martin Luther King, Jr., leads black boycott of Montgomery, Ala., bus system (Dec. 1); desegregated service begins Dec. 21, 1956. AFL and CIO become one organization-AFL-CIO (Dec. 5). Tennessee Williams's Cat on a Hot Tin Roof wins Pulitzer.
1956
Nikita Khrushchev, First Secretary of USSR Communist Party, denounces Stalin's excesses (Feb. 24). First aerial H-bomb tested over Namu islet, Bikini Atoll-10 million tons TNT equivalent (May 21). Workers' uprising against Communist rule in Poznan, Poland, is crushed (June 28-30); rebellion inspires Hungarian students to stage a protest against Communism in Budapest (Oct. 23). Egypt takes control of Suez Canal (July 26). Hungarian rebellion forces Soviet troops to withdraw from Budapest (Oct.). Israel launches attack on Egypt's Sinai peninsula and drives toward Suez Canal (Oct. 29). Imre Nagy announces Hungary's withdrawal from Warsaw Pact (Nov. 1); Soviet troops enter and reclaim Budapest (Nov. 4). British and French invade Port Said on the Suez Canal (Nov. 5). Cease-fire forced by U.S. pressure stops British, French, and Israeli advance (Nov. 6). Morocco gains independence. Ingmar Bergman's The Seventh Seal. Woody Guthrie composes "This Land is Your Land." Allen Ginsberg's Howl.
1957
Eisenhower Doctrine calls for aid to Mideast countries which resist armed aggression from Communist-controlled nations (Jan. 5). The "Little Rock Nine" integrate Arkansas high school. Eisenhower sends troops to quell mob and protect school integration (Sept. 24). Russians launch Sputnik I, first Earth-orbiting satellite-the Space Age begins (Oct. 4).
1958
European Economic Community (Common Market) becomes effective (Jan. 1). Army's Jupiter-C rocket fires first U.S. Earth satellite, Explorer I, into orbit (Jan. 31). Egypt and Syria merge into United Arab Republic (Feb. 1). Khrushchev becomes premier of Soviet Union as Bulganin resigns (Mar. 27). Gen. Charles de Gaulle becomes French premier (June 1), remaining in power until 1969. Eisenhower orders U.S. Marines into Lebanon at request of President Chamoun, who fears overthrow (July 15). New French constitution adopted (Sept. 28), de Gaulle elected president of 5th Republic (Dec. 21).
1959
Cuban President Batista resigns and flees-Castro takes over (Jan. 1). Tibet's Dalai Lama escapes to India (Mar. 31). St. Lawrence Seaway opens, allowing ocean ships to reach Midwest (April 25). Alaska and Hawaii become states. Leakeys discover hominid fossils.