Why was the Great Wall of China created?

What was going on with south asia before europeans came ?

"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.

Define the word imperialism. what is your opinion: should the u. s. engage in imperialism? under what circumstances? offer a brief, effective argument against the opinion that you hold.