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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U.S. Naval Academy
1778: The United States Flag is formally recognized by a foreign naval vessel for the first time, when French Adm. Toussaint-Guillaume Picquet de la Motte renders a nine-gun salute to the USS Ranger, commanded by John Paul Jones, as it arrived in Quiberon Bay in France.