Who was president of the United States when World War II started in Europe

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

How long have counties been a part of the government structure of the united states?

What affects did the great depression have on americans