Charles Darwin embarks on the HMS Beagle, "Howdy Doody" makes its TV debut, Apollo 8 splashes down after orbiting the Moon, and the Soviet Union occupies Afghanistan, all on this day.
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Zahid Hussein/Reuters
2007: Former Pakistani Prime Minister Benazir Bhutto is assassinated by a bomb blast in Rawalpindi, Pakistan, two weeks before the scheduled 2008 general election in which she was a leading opposition candidate.