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The 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. -
The end of the Mexican-American War
The Treaty of Guadalupe Hidalgo, signed on February 2, 1848, ended the Mexican-American War in favor of the United States. The war had begun almost two years earlier, in May 1846, over a territorial dispute involving Texas. -
The Fugitive Slave Law is passed
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Uncle Tom’s Cabin is published
Uncle Tom's Cabin; or, Life Among the Lowly, is an anti-slavery novel by American author Harriet Beecher Stowe. Published in 1852, the novel had a profound effect on attitudes toward African Americans and slavery in the U.S. and is said to have "helped lay the groundwork for the Civil War". -
The 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´. -
Brooks attacks Sumner
The Caning of Charles Sumner, or the Brooks–Sumner Affair, occurred on May 22, 1856, in the United States Senate when Representative Preston Brooks used a walking cane to attack Senator Charles Sumner an abolitionist, in retaliation for a speech given by Sumner two days earlier in which he fiercely -
The Dred Scott Decision
Sandford, legal case in which the U.S. Supreme Court on March 6, 1857, ruled (7–2) that a slave (Dred Scott) who had resided in a free state and territory (where slavery was prohibited) was not thereby entitled to his freedom; that African Americans were not and could never be citizens of the United States; and that ... -
Lecompton Constitution Rejected
Lecompton Constitution. The Lecompton Constitution, the second constitution drafted for Kansas Territory, was written by proslavery supporters. The document permitted slavery (Article VII), excluded free blacks from living in Kansas, and allowed only male citizens of the United States to vote. -
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John Brown raids Harper’s Ferry
John Brown's raid on Harpers Ferry was an effort by abolitionist John Brown to initiate an armed slave revolt in 1859 by taking over a United States arsenal at Harpers Ferry, Virginia. Brown's party of 22 was defeated by a company of U.S. Marines, led by First Lieutenant Israel Greene -
The Election of Abraham Lincoln
