What Happened in 871 AD
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- Jan 4 Battle at Reading: Ethelred of Wessex defeated by Danish invasion army
- Jan 8 Battle of Ashdown: Ethelred I of Wessex and his brother Alfred the Great beat invading Danish army
- Jan 22 Battle of Basing: Danish invasion army beats Saxon Ethelred of Wessex
- Mar 22 Battle at Marton: Ethelred van Wessex beats Danish invasion army
- Apr 23 Ethelred I, King of Wessex and brother of Alfred the Great, dies aged around 24
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List of Years