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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Library of Congress
1913: Jimmy Hoffa, the labor union leader who served as the Teamsters president between 1958 and 1971, is born in Brazil, Ind. Hoffa would famously go missing on July 30, 1975, and be declared legally dead seven years later, although his body has yet to be found.