What happend on 21st December

This is day of

Winter Solstice, the shortest day and longest night of the year in the Northern Hemisphere, occurs.

1988

Pan Am Flight 103, a Boeing 747, is tragically bombed over Lockerbie, Scotland, leading to the loss of 270 lives in a terrorist attack.

1937

Walt Disney's groundbreaking animated film "Snow White and the Seven Dwarfs" premieres in Los Angeles, marking a milestone in cinema history.

1913

The precursor to the modern crossword puzzle, known as "word-cross" and created by Arthur Wynne, is first published in a newspaper.