-
Eli Whitney patented the cotton gin, a machine that revolutionized the production of cotton by greatly speeding up the process of removing seeds from the cotton fiber.
click here! -
The Missouri Compromise was an effort by congress to defuse the sectional and political rivalries triggered by the request of Missouri late in 1819 for admission as a state in which slavery would be permitted.
click here! -
Nat Turner's Rebellion was a slave rebellion that took place in Southampton County, Virginia, rebel slaves killed from 55 to 65 people.
click here -
The convention declared that the tariffs of 1828 and 1832 were unconstitutional and unenforceable within the state of South Carolina after February 1, 1833. They said that attempts to use force to collect the taxes would lead to the state's secession.
click here! -
Wilma Proviso proposed an American law to ban slavery in territory acquired from Mexico in the Mexican War.
-
Senator Henry Clay introduced a series of resolutions on January 29, 1850, in an attempt to seek a compromise and avert a crisis between North and South.
[click here](http://www.history.com/topics/compromise-of-1850 -
It was a network of secret routes and safe houses established in the United States during the early to mid-19th century, and used by African American slaves to escape into freedom. Started by Harriet Tubman.
click here! -
It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders.
click here -
The period of violence during the settling of the Kansas territory. In 1854 the Kansas-Nebraksa Act overturned the Missouri Compromise’s use of latitude as the boundary between slave and free territory.
click here -
Preston Brooks beats Charles Sumner with a cane. Senator Charles Sumner of Massachusetts was an avowed Abolitionist and leader of the Republican Party.
[click here](http://www.ushistory.org/us/31e.asp -
The United States Supreme Court issues a decision in the Dred Scott case, affirming the right of slave owners to take their slaves into the Western territories.
click here -
The Lincoln-Douglas debates were a series of formal political debates between Abraham Lincoln and Stephen A. Douglas in a campaign for one of Illinois' two United States Senate seats.
click here -
American presidential election in which Republican Abraham Lincoln defeated Southern Democrat John C. Breckinridge, Democrat Stephen A. Douglas, and Constitutional Union candidate John Bell.
click here -
The secession of Southern States led to the establishment of the Confederacy and ultimately the Civil War. It was the most serious secession movement in the United States and was defeated when the Union armies defeated the Confederate armies in the Civil War.
click here
