1939
The possibility of nukes
A letter from Albert Einstein was delivered to President Franklin D. Roosevelt concerning the possibility of atomic weapons.
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1779
Polish patriot and American Revolutionary War commander Casimir Pulaski was killed in the battle of Savannah.
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1899
The Boer War began in South Africa.
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1915
English nurse Edith Cavell was executed by the Germans.
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1962
The first session of Vatican II was convened by Pope John XXIII.
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1968
The first staffed Apollo mission, Apollo 7, was launched with astronauts Wally Schirra, Donn Fulton Eisele, and R. Walter Cunningham aboard.
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1984
Space shuttle Challenger astronaut, Kathryn Sullivan, became the first American woman to walk in space.
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