Magellan reaches the Pacific, William Shakespeare gets hitched, the Grand Ole Opry debuts, Olympic gymnast Nadia Comaneci defects, and Jeffrey Dahmer is killed in prison, all on this day.
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Richard Waitt/U.S. Geological Survey
1979: Air New Zealand Flight 901, a DC-10 operated sightseeing flight over Antarctica, crashes into Mount Erebus in whiteout conditions, killing all 257 people on board.