Why did immigrants coming to the u. s settle in the cities ?

How did political revolutions in the atlantic ocean basin affect or alter the institution of slavery and the lives of slaves

In ohio in 1872, the cleveland massacre was a violent labor dispute at standard oil refineries in cleveland. a takeover by standard oil of the refineries in cleveland. an attempt to stop standard oil from becoming a monopoly. a failed attempt by standard oil to take over other refineries.

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry