It's mainly because of A and B, because after the war, the industrial resolution happened, and farmers are replaced by machines, farmers has no work to do, their speed is no compare to the machines, so they must move to another place. Also the population in Europe is growing in a extremely fast speed. Hope that helps :)
Charlemagne restored him and protected him from being driven out again
hope this helps
Some African American leaders responded to segregation by <span>educating themselves and writing pamphlets.
</span>
