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France sells Louisiana territories to USA
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Louis and Clark expedition sets off
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Atlantic Slave Trade abolished
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War of 1812 between the US and Britain
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Mexican War
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California Gold Rush
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Gadsen Purchase
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Opponents of slavery set up Republican Party
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Republican candidate Abraham Lincoln is elected president
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11 pro-slavery southern states secede from the union and for confederate states of America
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Lincoln issues Emancipation Proclamation
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Confederates are defeated
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US gains Puerto Rico