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The Kansas-Nebraska Act created the states of Kansas and Nebraska. This caused tension because one of them wanted slavery and the other didn't.

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This picture shows Henry Clay speaking to the Senate.

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The Compromise of 1850 was meant to settle the disagreements about slavery between the states.

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This picture shows a newspaper of the Fugitive Slave Act

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The Fugitive Slave Act required slaves to be returned back to their owners, even if they were in a free state.

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This video explains how slavery lead to the Civil War.

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Slavery really helped to lead to the Civil War. The South wanted slavery but the North didn't.

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Black Americans in the Civil War: Crash Course Black American History #18

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This is a picture of Abraham Lincoln and Hannibal Hamlin.

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Abraham Lincoln won the Election of 1860. He was against slavery and wanted no states to have slaves.

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This is a picture of the Raid on Harper's Ferry.

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A group of abolitionists led by John Brown, who wanted to free slaves, killed ten men at Harper's Ferry, Virginia.

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The court decided that Dred Scott was not entitled into freedom even though he was living in a free state because he was not a citizen and was someone's property. This made abolitionists mad and the divide between the Northern and Southern states grow.

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This is a picture of Abraham Lincoln and Stephen Douglass.

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The Lincoln-Douglass Debates were seven debates about slavery between republican Abraham Lincoln and democratic Stephen Douglass.

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These are people in front of the Capital in Montgomery after the election.

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The southern states seceded because they wanted to keep slavery.

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This is a summary of the book "Uncle Tom's Cabin."

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"Uncle Tom's Cabin" is an antislavery book by Harriet Beecher Stowe. The book's main theme is showing that slavery and treating humans like they are property is a problem.

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This is a picture from the Pottawatomie Massacre. 

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The Pottawatomie Massacre was the murder of five men by John Brown and nine other men who were against slavery. This was the beginning of the "Bleeding Kansas" period.

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These are slaves before they were sold to farmers.

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The New Lands Renews Slavery Disputes Compromise of 1850 tried to ban slavery in the states.

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This video shows how a cotton gin works.

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The invention of the cotton gin made the working process for slaves a lot easier. The cotton gin removed the seeds from cotton fiber.