How are types of government different around the world

In 1819, what did the united states obtain from spain for $5 million?

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.

Ahistorian claims massive drought and famine in china caused the boxer rebellion. which of the following historians is making a counterclaim?