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Period: 406 to 455
The Barbarian invasion of the Western Roman Empire.
Roman legions evacuate Britannia in AD 406. (Cause)
The Anglo-Saxons move into Britannia (Effect) The Huns push other groups westward, eventually into Roman territory. (Cause)
Aleric and the Visigoths sack Rome, AD 410 (Effect) Vandals invade Spain, north Africa, and sack Rome in AD 455 (Effect) (http://www.penfield.edu/webpages/jgiotto/onlinetextbook.cfm?subpage=1492781) -
Period: 455 to 484
when was The Indian Gupta Empire is destroyed by White Huns.
The first to initiate Indian invasions. (https://www.ancient.eu/White_Huns_(Hephthalites)/ -
622
Muslims conquer much of the Middle East.
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802
The Khmer Empire is founded in Cambodia.
The Khmer empire was a powerful state in South East Asia, formed by people of the same name, lasting from 802 CE to 1431 CE. At its peak, the empire covered much of what today is Cambodia, Thailand, Laos, and southern Vietnam.
(https://www.ancient.eu/Khmer_Empire/) -
Oct 14, 1066
The Normans conquer England.
Norman Conquest, the military conquest of England by William, duke of Normandy, primarily effected by his decisive victory at the Battle of Hastings (Oct. 14, 1066) and resulting ultimately in profound political, administrative, and social changes in the British Isles.(https://www.britannica.com/event/Norman-Conquest)