- 1918 12 Nov Austria declares itself a republic, rejecting the Habsburg dynasty that had dominated Europe since 1267.
- 1944 12 Nov The last great German battleship, 'Tirpitz', is sunk by RAF bombers in Tromso fjord, Norway.
- 1948 12 Nov Former Japanese prime minister Hikedi Tojo and seven other wartime leaders are sentenced to death.

