How did the Grimké sisters influence American culture before the Civil War?

Why was hawaii so important to the united states & why did japan bomb pearl harbor?

The factory system of the early-19th century caused a) a decrease in farm production. b) an increase in rural population. c) an increase in urban population. d) high unemployment in other areas.

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by