Which of these BEST explains why there were so few people in the western portions of the United States in 1870?
A) The Appalachian Mountains were too high to cross.
B)
People were scared of the moving from the east
coast to the west.
The Mississippi River prevented people from leaving
the east coast.
D)
The Rocky Mountains had kept people from crossing
across the continent.

Match these items. 1 . stephen douglas published "north star" 2 . frederick douglass first african slaves arrived in jamestown 3 . crittenden compromise proposed kansas-nebraska act 4 . republican party extend 36° 30' line to california 5 . abolitionists servitude in exchange for passage to the united states 6 . indentured struggle between proslavery and antislavery groups 7 . jefferson davis formed to prevent spread of slavery 8 . "bleeding kansas" wanted slavery abolished 9 . uncle tom's cabin president of confederacy 10 . 1619 harriet beecher stowe