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Missouri Compromise
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New York Ablishes Slavery
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The British Empire Abolishes Slavery
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The results of the 1840 census show a total population of 16,987,946 including 2,482,546 slaves or 15% of the population. Slaves are virtually non-existent in northern states and as high as 55% in South Carolina and 52% in Mississippi.
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Former slave, Frederick Douglass, publishes his autobiography - Narrative of the Life of Frederick Douglass.
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Iowa becomes the twenty ninth state and enters the Union as a free state in 1846.
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Compromise of 1850
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Kansas-Nebraska Act
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surrender at Appomattox Courthouse