On this day: December 21

POSTED: 09:02 PM PST Dec 20, 2012    UPDATED: 11:00 PM PST Dec 20, 2012 
Elvis Presley meets President Richard Nixon

The Pilgrims land on Plymouth Rock, the first crossword puzzle is published, "Snow White and the Seven Dwarfs" premieres, Gen. Patton dies, and Elvis visits Nixon at the White House, all on this day.