Why did so many people flock to cities in the late nineteenth and early twentieth centuries?

How did the invention of the cotton gin affect slave labor in the united states? a. there was a forced migration of slaves from the south to the north. b. slave-owning cotton planters were gradually forced to sell their plantations. c. more slaves were purchased to work on cotton plantations in the south. d. the reduced need for labor on cotton plantations led to a decline in slavery. e. slaves were moved from cotton plantations to sugar plantations.

What is a key believes of john locke in establishment of government

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by o a. region b. culture c. period d. theme