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When Southerners and Northerners started moving west they didn't know if slavery as going to the west too. The Southerners believed that slavery should go west but Northerners disagreed.

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As the U.S. kept growing many people still didn't know if slavery was going to spread.The government then made it that Maine was a free state while Missouri Was a Slave state, alongside a new rule that slavery was banned in all new states above the 36'30 ladtitude

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Many Southerners thought that the new rule wasn't fair because almost all new states were above the 36'30 latitude but the government didn't care

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When Southerners realized their worth they wanted to start trading with other countries like France and Great Britain. When Northerners Heard this they got upset , they wanted the South to only trade with them. When The Federal Government  imposed tariff to make southern not able to trade with anyone. Soon threats of the Civil War started to Happen

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when the gold rush started California quickly signed up to join the United States, Pro-Slavery and Anti-Slavery activist argued on if it was or wasn't going to be a free state. California chose to be a free state but after that there was a new law , The new law had said that Northerners had to return run-away slaves to their masters in the south.

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Uncle Tom's Cabin was a Anti-Slavery book that talked about a run-away slaves life in the South, it showed everyone the gruesome and horrible parts in slavery. After the book was published many Americans became Abolitionist to end slavery.

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The Republican Party was created to end slavery. Southerners were afraid that if a Republican became President they would lose all their slaves.

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After the Missouri Compromise got cancelled slavery was allowed above the 36'30 latitude. this caused things to get violent.

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dread scott sue blacked slaves for freedom. Due to this abolitionists got angry.

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john brown and his 5 sons tried to lead a slave rebellion. He got the weapon's from harpers ferry in virgina.

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southern people said if a republican won the election then they would break up from the union. The republican won the election.

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the southern states left the union and made a new country. they were the confederate states of america.