What caused William the Conqueror to bring feudalism with him to England?

Feudalism is the name given to the system of government William I introduced to England after he defeated Harold at the Battle of Hastings. Feudalism became a way of life in Medieval England and remained so for many centuries. William I is better known as William the Conqueror.

Explanation:

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.