What was the main problem that african nations had in stopping the spread of imperialism.

Which statement best describes a major advantage of a confederal system of government over a unitary system

What were some of the new consumer appliances that americans could purchase in the 1920s

How and why did the policies of the federal and state governments toward native american people change between 1790 and the 1850s. what were the reaction of native american people to these policies?