1933: Opening of the Nazis' first concentration camp.
On this day in 1933, soon after Adolf Hitler became chancellor, the first concentration camp in Germany opened at Dachau, where at least 32,000 people died and many others were transported to extermination camps in Poland.
| 1913: | | In Toledo, Ohio, William Knox became the first bowler to make a perfect score of 300 in an American Bowling Congress tournament. |
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| 1903: | | American jazz cornetist Bix Beiderbecke was born in Davenport, Iowa. |
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| 1876: | | | Alexander Graham Bell's “liquid” transmitter design permitted the first transmission of speech by Bell to his assistant, Thomas Watson. |
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| 1864: | | The Red River Campaign began in the American Civil War. |
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| 1793: | | | In Paris, on the proposal of Georges Danton, the National Convention decreed the establishment of the Revolutionary Tribunal. |
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