When did segregation in the u. s.a start and end?

What is the main inference that can be drawn from adam smith’s book the wealth of nations?

Monopolies were legal in the united states until a)the 1860s. b)the 1870s. c)the 1880s. d)the 1890s.

Select all that apply. the reasons some governments fail are: the policies of leaders hurt the people leaders fail to recognize change they don’t restrict freedom enough leaders stay up on the times and change they don’t protect individual freedoms