Explain why American colonies, and later states with slaves, passed many laws against slaves and free African Americans​

What did the u.s. want to build on the land acquired through the gadsden purchase?

Brainliestttme : ) what economic changes occurred after world war ii? ( economic boom, baby boom, g.i. bill of rights)

Why was galileo galilei brought before the inquisition? for insisting that earth stands still at the center of the universe for proving that planets move in elliptical orbits for putting forth evidence that earth moves around the sun for suggesting that the sun is a star