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Congress extends Maryland and Virginia slavery laws to DC making slave code federal.
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The purchase doubled the size of the United States, greatly strengthened the country materially and strategically, provided a powerful impetus to westward expansion, and confirmed the doctrine of implied powers of the federal Constitution.
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Virginia requires freed Bondsmen to leave state within one year.
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US bans slave trade.
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The War of 1812 was a conflict fought between the United States and its allies against the United Kingdom of Great Britain and Ireland and its allies.
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The First Seminole War (1817–18) began over attempts by U.S. authorities to recapture runaway black slaves living among Seminole bands. Under General Andrew Jackson, U.S. military forces invaded the area, scattering the villagers, burning their towns, and seizing Spanish-held Pensacola and St. Marks.
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Canada forbids American government to pursue runaways in Canada establishment of Liberia for returning free men from North America. US annexes east Florida, A former refuge for freedom seekers.
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In an effort to preserve the balance of power in Congress between slave and free states, the Missouri Compromise was passed in 1820 admitting Missouri as a slave state and Maine as a free state.
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Kentucky representatives present resolution to congress protesting Canada's reception of freedom seekers Denmark Vesey conspiracy in South Carolina. Pennsylvania anti-kidnapping law to protect free blacks future conductor John Rankin moves to Liberty Hill, Ohio. David Walker's appeal for Blacks to revolt against their oppressors is published.
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Wilberforce, Canada founded Mexico abolishes slavery Nat Turner revolt in Virginia. William Lloyd Garrison begins the liberator.
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New England Anti-slavery society established. Louisiana presents resolution requesting federal government to arrange with Mexico to return freedom seekers to Louisiana.
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Publication of the underground railroad by William still slavery abolished in Puerto Rico.