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September 25, 1066Reputable sourceWell documented

The Battle of Stamford Bridge

On the timeline · around September 25, 1066 · The Battle of Stamford Bridge103010351040104510501055106010651070

What happened

On 25 September 1066 the English king Harold II crushed an invading Norwegian army under King Harald Hardrada — who had hoped to restore the North Sea Empire once ruled by Cnut the Great — at Stamford Bridge in Yorkshire. Hardrada was killed. Just weeks later, Harold himself fell to the Normans at the Battle of Hastings.

Why it matters

Stamford Bridge was the last great Viking invasion of England, and its defeat is generally taken to mark the end of the Viking Age.

Sources