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Guglielmo Marconi sent the first radio signal
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Spanish-American war
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Wright Brothers, first manned and gas-powered airplane
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Alfred Wegener; Continental drift
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Titanic sinks
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Period: to
World War I
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Russian revolutions give way for communism
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World War I Ends
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League of Nations founded
The League of Nation's task was simply to ensure that war never broke out again -
Treaty of Versailles signed
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Warren G. Harding elected
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Adolf Hitler becomes Leader of Nazi Party
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Calvin Coolidge elected
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Edwin Hubble discovers that the Milky Way galaxy is not alone
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Scopes Monkey Trial begins
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Georges Lemaitre; the Big Bang
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Ernst Ruska and Max Knoll build first electron microscope
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FDR elected President
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German Reichstag burns down
-
Hitler elected Chancellor of Germany
-
Hitler elected Fuhrer of Germany
-
Numerberg Race Laws implemented in Germany
-
War of the Worlds radio broadcast creates nationwide panic
-
Period: to
World War II
-
Battle of the Bulge
-
Battle of Iwo Jima
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“Little Boy” atomic bomb dropped on Hiroshima
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“Fat Man” atomic bomb dropped on Nagasaki
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First microwave oven patented, based on Percy Spencer’s design
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Nuremberg Trials begin
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Period: to
Korean War
-
James D. Watson and Francis Crick discover the helical structure of DNA
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Dwight D. Eisenhower elected
-
Period: to
Vietnam War
-
Bay of Pigs Invasion
-
Dwight D. Eisenhower elected
-
John F. Kennedy elected
-
Lyndon B. Johnson elected
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JFK assassinated
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James Russell invents the compact disc
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Richard Nixon elected
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Humans walk on the surface of the moon
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US invasion of Panama
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Tiananmen Square protests
