Based on the graphed, which period of European history could be best described as “Europe fully recovers from the Black Death ?

How does the concept of competition relate to the arms race between the us and the soviet union during the cold war?

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.

What was the “u-2 incident” and how did it affect u.s./soviet relations in 1960?