Kwanzaa

The fourth day of Kwanzaa (United States)

Twelve Days of Christmas

The fifth day of Christmas (Western Christianity)

Independence Day (Mongolia)

Independence Day (Mongolia)

Public holidays in Ireland

Constitution Day (Ireland)

December 29 (Eastern Orthodox liturgics)

Christian feast day:
December 29 (Eastern Orthodox liturgics)

Trophimus of Arles

Christian feast day:
Trophimus of Arles

Thomas Becket

Christian feast day:
Thomas Becket

Ebrulf

Christian feast day:
Ebrulf

Tomiko Itooka

Tomiko Itooka, Japanese supercentenarian (born 1908)

Linda Lavin

Linda Lavin, American actress and singer (born 1937)

Jimmy Carter

Jimmy Carter, American politician, 39th President of the United States (born 1924)

Aaron Brown (journalist)

Aaron Brown, American journalist and academic (born 1948)

Jeju Air Flight 2216

Jeju Air Flight 2216 crashes into a wall in Muan, South Korea, killing 179 of the 181 occupants. It is the worst aircraft accident on South Korean soil in history.

Gil de Ferran

Gil de Ferran, French-born Brazilian racing driver, CART champion (2000, 2001), 2003 Indianapolis 500 winner (born 1967)

South Africa

South Africa files a genocide case against Israel at the International Court of Justice over Israeli conducts in the Gaza Strip.