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The Missouri Comprimise bans slavery to the north of its border. Main becomes a free union state, yet Missouri is a slave state.
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In 1820, penalties were set in place for producing anything written that was against slavery. Collars were to be worn by slaves, this law passed would later affect blacks in the city.
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Liberia is founded for slaves on the run away from America.
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An anti-kidnapping law is set in place in Pennsylvania to protect slaves. (1826)
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A requirement in Texas is that one tenth of each person's slaves must be freed. Later, individual people are allowed to sell slaves.
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There is an official ban on the slave trade in Tennesee (1827).
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Mexico makes slavery illegal, and slave refugees from America seek protection there.
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Georgia controversially states that it will not recognize blacks as American citizens.
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North Carolina denies freedom to blacks.
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The slave population in America is around 4 million.
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Abraham Lincoln is elected persident of the United states of America in 1860. He freed all slaves in the United States with the Emancipation Proclamation.