What did the black code in the south and the “jim crow” laws in the south have in common

What is the most famous discovery attributed to isaac newton ? a) barometer b) thermometer c) laws of universal gravitation d) telescope

In 1637, colonists killed between 500 and 600 american indians in connecticut

How did the invention of the cotton gin affect slave labor in the united states? a. there was a forced migration of slaves from the south to the north. b. slave-owning cotton planters were gradually forced to sell their plantations. c. more slaves were purchased to work on cotton plantations in the south. d. the reduced need for labor on cotton plantations led to a decline in slavery. e. slaves were moved from cotton plantations to sugar plantations.