Western

The Barbarian invasion of the Western Roman Empire.

406

Roman legions evacuate Britannia in AD 406. (Cause)
The Anglo-Saxons move into Britannia (Effect)

The Normans conquer England.

Feb 1, 1066

The Norman conquest of England was the 11th century invasion and occupation of England by an army of Norman, Breton, and French soldiers led by Duke William II of Normandy, later styled as William the Conqueror.