1066
| Years: 1063 1064 1065 - 1066 - 1067 1068 1069 | |
| Decades: 1030s 1040s 1050s - 1060s - 1070s 1080s 1090s | |
| Centuries: 10th century - 11th century - 12th century | |
Events
- January 6 - Harold II is crowned king the day after Edward the Confessor dies.
- Tostig Godwinson and Harald Hardraada of Norway invade England.
- September 25 - Harold II defeats Tostig and Harold Hardraada at the Battle of Stamford Bridge, killing both.
- September 28 - Norman Conquest: William the Conqueror, Duke of Normandy, invades England.
- October 14 - Norman Conquest: Battle of Hastings - In England on Senlac Hill, seven miles from Hastings, the Norman invasion forces of William the Conqueror defeat the English army and kill King Harold II of England. The Norman dynasty of English Kings followed. England was not successfully invaded again until the invasion of William III on November 5, 1688.
- The Viking port of Hedeby destroyed by marauding Slavs.
- A new church is begun at Monte Cassino.
- Halley's Comet is sighted in Britain.
Deaths
- January 5 - Edward the Confessor, King of England.
- September 25 - Tostig Godwinson, Earl of Northumbria and brother of Harold II of England.
- October 14 - Harold II Godwinson of England, the last Saxon King of England.
- Harald III of Norway