1940s
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Events and trends
The 1940s were dominated by World War II, the most destructive armed conflict in history. The post-war period saw the beginning of the East-West conflict and the Cold War, together with major social upheaval caused by the destruction of the war, the large number of refugees, and soldiers returning home and demanding government recognition for their sacrifice.
Technology
- 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
- TRIZ
War, peace and politics
- World War II ends in 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 in 1948
- NATO founded in 1949
- The Chinese Civil War ends in victory for the Communists
- Informbiro period in Yugoslavia begins
- Indian independence and Independence of Pakistan
- 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
- Rhythm and blues emerges
Others
People
World 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)
- Mohammad Ali Jinnah (Pakistan)
- 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 D. 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
- Duke Ellingtoncy:1940au
da:1940'erne de:1940er et:1940. aastad es:Años 1940 eo:1940-oj fr:Années 1940 it:Anni 1940 la:Decennium 195 lt:XX amžiaus 5-as dešimtmetis nl:1940-1949 ja:1940年代 no:1940-årene pl:Lata 40. XX wieku pt:Década de 1940 ro:Anii 1940 simple:1940s sl:1940. fi:1940-luku sv:1940-talet zh:1940年代