- January 5: King Edward the Confessor dies. The Witenagemot proclaims Harold Godwinson King.
- January 6: Harold II is crowned King of England at Westminster Abbey.
- April 22: Halley's Comet appears and is subsequently recorded in the Bayeux Tapestry.
- September 20: Battle of Fulford: King Harald Hardrada of Norway defeats the northern English earls Edwin and Morcar.
- September 25: Battle of Stamford Bridge: King Harold Godwinson of England defeats the Norwegians under Harald Hardrada.
- September 28: Duke William of Normandy lands in 7,000 men in England at Pevensey.
- October 14: Battle of Hastings, fought between King Harold Godwinson of England and Duke William of Normandy; Harold is killed and William is victorious.
- December 25: Duke William of Normandy, is crowned King William I of England.
- Magnus II is crowned King of Norway.
- December 30: Granada massacre: A Muslim mob storms the royal palace in Granada, crucifies Jewish vizier Joseph ibn Naghrela and massacres most of the Jewish population of the city.
- Hedeby is destroyed by a Slavic army.
- January 5: King Edward the Confessor of England
- September 25: King Harald III of Norway (Harald Hardrada), killed at the Battle of Stamford Bridge.
- September 25: Tostig Godwinson, Earl of Northumbria, brother of King Harald, killed at the Battle of Stamford Bridge.
- October 14: King Harold II of England, killed at the Battle of Hastings.
- October 14: Leofwine Godwinson, brother of King Harold, killed at the Battle of Hastings.
- October 14: Gyrth Godwinson, brother of King Harold, killed at the Battle of Hastings.
- November 11: Bishop of Mecklenburg Johannes Scotus, sacrificed to Radegast, a pagan deity.
- Ibn Butlan, Baghdad physician
- Imam Bayhaqi, Islamic scholar.