What was the main reason that slavery wasn't well-established in the north?

Which number shows the location of italy?

Pls thomas jefferson believed that the french revolution and the reign of terror, a. should be exported to the rest of europe. b. would bring the united states and britain closer together. c. we’re understandable yet regrettable responses to the excesses of french monarchy. d. we’re not particularly important developments.

What river systems the worlds earliest known civilization develop ?