Underground RailroadActive in the mid-1800s the Underground Railroad led to the escape and freedom of thousands of blacks. Harriet Tubman helped many escape. Slave-owners did not like the Underground Railroad. This is important because it put the North and South against each other.
Prelude to Civil WarThese are some of the events that led up to the Civil War. Slavery was a driving factor.
Gold in CaliforniaMany Americans ran to California in search of gold in 1849. Some did not want slavery in California which led to contention. As there was already contention, more just pushed a civil war faster.
Popular SovereigntyPopular sovereignty was where people ruled, giving them the right to vote. It worked according to state. However, as this still didn't give enslaved people the right to vote it was not largely accepted. It still left the slavery problem unsolved.
Fugitive Slave LawNicknamed "bloodhound bill". The Northerners were very mad about this law. This law was responsible for much contention, anger, and pushed America toward civil war.
The Kansas - Nebraska ActBrought the new Republican party. Made future compromises with the South much more difficult. The Kansas-Nebraska Act "wrecked" two compromises: the that of 1820 and of that 1850. Americans started seeing less and less that they agreed with.