How and why did early humans migrate out of africa and across the earth's varied landscapes?

Who tried to stop the civil rights act of 1964 from passing the us senate and what tactic did they use? how was their opposition overcome?

Which statement best describes the underground railroad? a.) it is a train that took slaves from the south to the north. b.) it is a business that harriet tubman founded to slaves become free. c.) it is a secret route that slaves took to escape from southern slave states to the north. d.) it is a road that slave owners disliked using for travel.

All of the following cities are located in china except