How did the west african slave traders obtain the slaves they sold to european?

What role did the catholic church play in the development of the heliocentric theory promoted by copernicus and galileo?

Amain reason most irish immigrants came to the united states in the mid-1800s wasa) to find jobs as skilled workers.b) to escape a potato famine.c) to live in less-crowded conditions.d) to escape religious persecution.

How influential do you think athenian democracy was on our representative democracy in the united states?