Saint Valentine dies a martyr, President Polk has his picture snapped, Al Capone sends his foes a violent Valentine's Day message, and Jackie Kennedy invites TV viewers inside the White House, all on this day.
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Public domain
1400: The deposed Richard II of England dies, most likely from starvation while in captivity in Pontifract Castle on orders from Henry Bolingbroke, who had claimed the throne for himself as Henry IV.