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In an effort to preserve the balance of power in Congress between slave and free states, the Missouri Compromise was passed in 1820 admitting Missouri as a slave state and Maine as a free state. In 1854, the Missouri Compromise was repealed by the Kansas-Nebraska Act.
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was an enslaved African American who led the Nat Turner's slave rebellion of slaves and free blacks in Southampton County, Virginia on August 21, 1831, that resulted in the deaths of 55 to 65 white people.
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Californios in the Mexican army were left to fight the Americans alone. He agreed to the Treaty of Cahuenga, which ended the fighting in California. The war continued outside California, until the United States defeated Mexico. The Treaty of Guadalupe Hidalgo was signed by both sides in February 1848. Since those states wanted to be apart from mexico and america wanted them.
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The war officially ended with the February 2, 1848, signing in Mexico of the Treaty of Guadalupe Hidalgo. The treaty added an additional 525,000 square miles to United States territory, including the land that makes up all or parts of present-day Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming.
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In 1845, the Republic of Texas was annexed to the United States of America, becoming the 28th U.S. state. Border disputes between the new state and Mexico, which had never recognized Texas independence and still considered the area a renegade Mexican state, led to the Mexican–American War (1846–1848).
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The Compromise of 1850 was a package of five separate bills passed by the United States Congress in September 1850, which defused a four-year political confrontation between slave and free states regarding the status of territories acquired during the Mexican–American War (1846–1848).
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The Fugitive Slave Law or Fugitive Slave Act was passed by the United States Congress on September 18, 1850, as part of the Compromise of 1850 between Southern slave-holding interests and Northern Free-Soilers.
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To gain the southerners' support, Douglas proposed creating two territories in the area–Kansas and Nebraska–and repealing the Missouri Compromise line. The question of whether the territories would be slave or free would be left to the settlers under Douglas's principle of popular sovereignty.
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Dred Scott was an enslaved man in the United States who unsuccessfully sued for his freedom and that of his wife and their two daughters in the Dred Scott v. Sandford case of 1857, popularly known as the "Dred Scott Decision
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Abolitionist John Brown leads a small group on a raid against a federal armory in Harpers Ferry, Virginia in an attempt to start an armed slave revolt and destroy the institution of slavery.
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Bleeding Kansas, Bloody Kansas or the Border War was a series of violent political confrontations in the United States involving anti-slavery "Free-Staters" and pro-slavery "Border Ruffian", or "southern yankees" elements in Kansas between 1854 and 1861, including "Bleeding Congress".
