- 866 1 Nov Vikings seize control of Eboracum (York), the first major city to fall in their conquest of England.
- 1952 1 Nov The US detonates the world's first hydrogen bomb - 800 times stronger than Hiroshima - on Eniwetok atoll.
- 1993 1 Nov Under the terms of the Maastricht Treaty, the European Community becomes the European Union.

