What are the similarities and differences between caste in India and caste among the Marghi of western Africa

Which of the following is an effect that constantine's conversion to christianity had on the roman empire?

"the plan of removing the aboriginal people who yet remain within the settled portions of the united states . . approaches its consummation. . an extensive region . . has been assigned for their permanent residence. it has been divided into districts and allotted among them. many have already removed and others are preparing to go. . " removal of southern indians to indian territory, 1835 this passage is most closely related to a) imperialism. b) the civil war. c) westward expansion. d) the french indian war.

Why would employers want there to be large numbers of unemployed workers around?