Rescuers reach the Donner Party, Edison patents the phonograph, the Soviet Union launches the Mir space station, and Fidel Castro resigns as Cuban president, all on this day.
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Public domain
1859: Daniel E. Sickles, a New York congressman, is acquitted of killing Philip Barton Key II, his wife's lover and the son of Francis Scott Key, on grounds of temporary insanity. This is the first time the defense had been successfully used in the United States.