What caused the rise of labor unions?

In 1956, people in demanded that soviet troops to be removed as the part of a call for democratic reforms

Who were the people that migrated south into india and indus valley

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.