World War II: The Wilhelm Gustloff, overfilled with German refugees, sinks in the Baltic Sea after being torpedoed by a Soviet submarine, killing approximately 9,500 people.

MV Wilhelm Gustloff was a German military transport ship, which was taking part in Operation Hannibal, when it was sunk by Soviet submarine S-13 in the Baltic Sea on 30 January 1945. At the time, it was evacuating civilians and German military personnel from East Prussia and the occupied Baltic…