the cotton gin is a machine that would separate seeds from the cotton at a much faster rate that people. it caused slavery to skyrocket because it ment that the same amount of slaves could to ten times more work.
1856-The Caning of Charles Sumner
that states that have slaves can keep them and free states cannot become slave states. this caused the south to become scared that the abolishment of slavery would be next.
1859-John Brown's Raid
The Kansas-Nebraska Act allowed each territory to decide the issue of slavery on the basis of popular sovereignty. kansas with slavery would violate the Missouri Compromise, which had kept the Union from falling apart for the last thirty-four years.
1861-Attack on Fort Sumter
he was canned by a pro slavery citizen. this enraged the anti slavery north.
he was an anti slaver that ended raiding a southern arsenal and was later captured and hanged. this caused the south to become suspicious of others and to be more stringent with laws.
this was an attack on a northern fort that was the last straw of the norths patients. this event was the cause of the civil war.