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Introduction of the cotton gin
Eli Whitney (1765–1825) applied for a patent of his cotton gin on October 28, 1793; the patent was granted on March 14, 1794, but was not validated until 1807. -
Missouri Compromise
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. At the time, the United States contained twenty-two states, evenly divided between slave and free. -
Nat Turner's Rebellion
Nat Turner's Rebellion (also known as the Southampton Insurrection) was a slave rebellion that took place in Southampton County, Virginia, during August 1831. Led by Nat Turner, rebel slaves killed from 55 to 65 people, the largest and deadliest slave uprising in U.S. history. -
The Liberator
Garrison co-published weekly issues of The Liberator from Boston continuously for 35 years, from January 1, 1831, to the final issue of December 29, 1865. Although its circulation was only about 3,000, and three-quarters of subscribers were African Americans in 1834 -
tariff of 1828 nullification crisis
The reductions were too little for South Carolina, and on November 24, 1832, a state convention adopted the Ordinance of Nullification, which declared that the Tariffs of 1828 and 1832 were unconstitutional and unenforceable in South Carolina after February 1, 1833. -
Wilmot Proviso
The Wilmot Proviso proposed an American law to ban slavery in territory acquired from Mexico in the Mexican War. The conflict over the Wilmot proviso was one of the major events leading to the American Civil War. -
Underground Railroad
The Underground Railroad 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 free states and Canada with the aid of abolitionists and allies who were sympathetic to their cause. -
Compromise of 1850
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. As part of the Compromise of 1850, the Fugitive Slave Act was amended and the slave trade in Washington, D.C., was abolished. -
Uncle Tom's Cabin
is an anti-slavery novel by American author Harriet Beecher Stowe. Published in 1852, the novel "helped lay the groundwork for the Civil War", according to Will Kaufman. -
Kansas - Nebraska Act
The Kansas-Nebraska Act was passed by the U.S. Congress on May 30, 1854. It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders. The Act served to repeal the Missouri Compromise of 1820 which prohibited slavery north of latitude 36°30´. -
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'Bleeding Kansas'
Bleeding Kansas, Bloody Kansas or the Border War was a series of violent political confrontations in the United States between 1854 and 1861 involving anti-slavery "Free-Staters" and pro-slavery "Border Ruffian", or "southern" elements in Kansas. -
Fort Sumter
is a sea fort in Charleston, South Carolina, notable for two battles of the American Civil War. It was one of a number of special forts planned after the War of 1812, combining high walls and heavy masonry, and classified as Third System, as a grade of structural integrity. Work started in 1829, but was incomplete by 1860, when South Carolina seceded from the Union.
