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An effort by abolitionist John Brown to initiate an armed slave revolt in 1859 by taking over a United States arsenal; at Harper's Ferry, Virginia.

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An antislavery novel written by Harriet Beecher Stowe that showed northerners the violent reality of slavery drew many people to the abolitionists cause.

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A law that made it a crime to help runaway slaves; allowed for the arrest of escaped slaves in areas where slavery was legal, and it required to return.

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A line between Pennsylvania and Maryland, which was an effort to settle an 80-year land dispute between the two colonies.

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A law that allowed voters in Kansas and Nebraska to choose whether to allow slavery.

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The Kansas-Nebraska Act Explained: US History Review

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The idea that political authority belongs to the people.

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In this video we explain what popular sovereignty is.

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An agreement proposed by Clay that allowed Missouri to enter the Union as a slave state, and outlawed Maine to be a free state.

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Clay's agreement that allowed California to enter the Union as a free state, and divided the Mexican Cession into 2 territories.

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Occurred from May 24-25th, and 5 men were murdered.

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A network of people who helped thousands of enslaved people of the north by providing transportation and hiding places.

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A legal case where the US Supreme Court ruled that a slave who resided in a free state and territory was not thereby entitled to freedom.

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Dred Scott v. Sandford | Homework Help from the Bill of Rights Institute

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On December 20th, 1860, South Carolina became a slave state and removed themselves from the US.

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The 16th president of the United States

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The nation formed by the southern states when the seceded from the union; aka the Confederacy

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People who wanted to end slavery.