Human migration occurred because of several factors. The reasons are the following:
1.food shortages
2.War
3 Seasonal changes
4.Disease and epidemic.
Africans are nomadic people. They thrive more from their environment. They only had to stop migrating during the agricultural era, wherein they learn to plant and tend crops and started cattle herding.
The American communist emerged as committed militants within the unemployed movement. And became community leaders in liberal, cultural, and student organizations. They became a major force in several important CIO unions.
An example can be the Missouri Compromise. According to it, a line was made and it was decided which countries could have slaves and which not. Now, it was considered to be a relatively good compromise because it helped the Union stay together, but watching it from the modern times it was most certainly not a good compromise because any compromise that establishes slavery anywhere is definitely not a good one.
