1940s
Events and trendsTechnology First nuclear bomb First cruise missile, the V1 flying bomb and the first ballistic missile, the V-2 rocket First transistor Colossus, the world's first totally electronic computer. See History of computing hardware First supersonic flight by Chuck Yeager on October 14, 1947
Science Quantum electrodynamics developed by Feynman, Dyson, Schwinger, and Tomonaga Mathematics: game theory, cryptology
War, peace and politics World War II (ends 1945) The shoah (Holocaust) Beginning of the Cold War Independence for some former colonies 1948 Arab-Israeli War The Irish Free State becomes a republic (1948) NATO founded in 1949 The Chinese Civil War ends in victory for the Communists Informbiro period in Yugoslavia begins Indian independence and partition US Air Force civilian auxiliary the Civil Air Patrol (CAP) formed
Economics The Marshall Plan is implemented by the United States, giving billions of dollars in aid to reconstruct the war-devastated economies of Europe
Culture, religion Frank Capra's It's a Wonderful Life The NBA begins play, in 1947
Others
PeopleWorld leaders Prime Minister William Lyon Mackenzie King (Canada) President Lin Sen (Republic of China) President Chiang Kai-shek (Republic of China) Marshal Henri Petain (Vichy France} Adolf Hitler (Germany) Mohandas Gandhi (India) († 1948) Prime Minister Jawaharlal Nehru (India) Prime Minister David Ben-Gurion (Israel) King Victor Emmanuel III (Italy) Prime Minister Benito Mussolini (Italy) Emperor Hirohito (Japan) Pope Pius XII Taoiseach Eamon de Valera (Éire) Taoiseach John A. Costello (Republic of Ireland) Joseph Stalin (Soviet Union) Prime Minister Winston Churchill (United Kingdom) Prime Minister Clement Attlee (United Kingdom) President Franklin Delano Roosevelt (United States) President Harry S. Truman (United States) Governor Luis Muñoz Marín (Commonwealth of Puerto Rico) President Getúlio Vargas (Brazil)
Sports figures Joe Louis Sugar Ray Robinson Ted Williams Jackie Robinson Joe DiMaggio Sammy Baugh Steve Van Buren Satchel Paige
Entertainers Abbott and Costello Bette Davis Bing Crosby Bob Hope Cary Grant Clark Gable Frank Sinatra Humphrey Bogart Ingrid Bergman James Cagney Jimmy Stewart Katharine Hepburn Lauren Bacall John Wayne Orson Welles Spencer Tracy
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