On this day: December 25

POSTED: 12:30 AM CST Dec 23, 2012    UPDATED: 01:00 AM CST 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.