- 1620 21 Dec The 'Pilgrim Fathers' arrive in the Americas, making their landing at a place they call Plymouth Rock.
- 1937 21 Dec Walt Disney releases 'Snow White and the Seven Dwarfs', the world's first full-length animated film.
- 1988 21 Dec A Libyan bomb explodes on a Pan Am passenger plane over Lockerbie, Scotland, killing 270 people.

