The crusades helped to solidify Europe as a colonial power, uprooted traditional.governmental systems, forced Christianity on many indigenous people, and allowed the Church and the kings an unbalanced control throughout Europe over both the political and economic well-being of the continent.
That's a hard one to answer but from all my reading it would seem there was one main reason. The Berbers were nomads so they never were able to be collectively together to form an army against invaders. Therefore, the Berbers were constantly being conquered by someone. Each time they had to learn new laws set out by the conquerors. When the Arabs came with their mighty army, they knew they couldn't fight so giving in was in an odd way a protection system of kinds.
B. An increase in knowledge as well as written books
If a dalton wabt thus eduction in the cadre fort you and apace
Hi.
The United States declared independence from England.
Hope this is what you were looking for.