On this day: December 25

POSTED: 11:30 PM MST Dec 22, 2012    UPDATED: 12:00 AM MST Dec 25, 2013 
George Washington crosses Delaware, Revolutionary War

George Washington crosses the Delaware, "To Kill a Mockingbird" premieres, Gorbachev resigns, and passengers on a Christmas flight into Detroit foil the "Underwear Bomber," all on this day.