What occurred that resulted of an increase in immigration in the us during the 1800’s

What was the u.s. government's office of indian affairs responsible for doing?

Briefs filed by groups that care about how a case turns out?

Which of these statements describes a long-term impact of european imperialism in africa? a. african countries joined together to present a united front against imperialism. b. europeans paid african countries after colonizing them, offering these new countries a fresh start. c. european powers drew the current borders, splitting ethnic groups among modern countries. d. africans became more loyal to their countries than to their ethnic groups.