Which country seems to have undertaken the most voyages?

Why did jefferson make the louisiana purchase?

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 mame given to the idea that americans should expand across the nation ro the pacific coast