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The cotton gin was a device used to separate cotton seeds from cotton so it could be made into product. [https://www.thinglink.com/scene/620343087138340866](http;//www.timetoast.com)
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The Missouri Compromise was a United States federal statute that regulated slavery in the country's western territories in the former Louisiana Territory. [http://www.history.com/topics/missouri-compromise](http;//www.timetoast.com)
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The Tariff of 1828 & Nullification Crisis was a confrontation between South Carolina and the federal government in 1832–33 over the former’s attempt to declare null and void within the state the federal Tariffs of 1828 and 1832.https://www.britannica.com/topic/nullification-crisis
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The Liberator (1831–1865) was an abolitionist newspaper founded by William Lloyd Garrison and Isaac Knapp. http://www.ushistory.org/us/28a.asp
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Nat Turner's Rebellion was slave rebellion that took place in Southampton County, Virginia. http://www.pbs.org/wgbh/aia/part3/3p1518.html
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The Wilmot Proviso was designed to eliminate slavery within the land acquired as a result of the Mexican War. http://www.history.com/topics/wilmot-proviso
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During the Compromise of 1850 the Fugitive Slave Act was amended and the slave trade in Washington, D.C., was abolished.https://www.loc.gov/rr/program/bib/ourdocs/Compromise1850.html
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[https://www.loc.gov/rr/program/bib/ourdocs/Compromise1850.html][https://www.harrietbeecherstowecenter.org/us tc/][http://www.history.com/topics/black-history/under erground-railroad][http://www.history.com/topics/kansas-nebraska-act][https://www.britannica.com/event/Bleeding-Kansas-United-States-history][http://www.senate.gov/artandhistory/history/minute/The_Caning_of_Senator_Charles_Sumner]
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Uncle Tom's Cabin was an anti-slavery novel by author Harriet Beecher Stowe. https://www.harrietbeecherstowecenter.org/utc/
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The Underground Railroad Was a network of secret routes and safe houses used by 19th-century slaves in the United States in efforts to escape to free states. http://www.history.com/topics/black-history/under erground-railroad
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The Kansas-Nebraska Act allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders. http://www.history.com/topics/kansas-nebraska-act
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Bloody Kansas was a series of violent political confrontations involving anti-slavery "Free-Staters" and pro-slavery "Border Ruffian". https://www.britannica.com/event/Bleeding-Kansas-United-States-history
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The Brooks-Sumner Event was when Preston Brooks beat Charles Sumner with a cane.http://www.senate.gov/artandhistory/history/minute/The_Caning_of_Senator_Charles_Sumner
