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Independence
September 17, 1787 -
Ratification
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LA purchase
April 30, 1803 -
MO compromise
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Nat Turner Rebellion
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TX independence
March 2, 1836. -
Treaty of Guadalupe Hidalgo
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compromise of 1850
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Dred Scott Decision
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South Carolina Secession
December 20, 1860 -
Antietam Battle
September 17, 1862 -
Vicksburg battle
May 18-July 4, 1863. -
Gettysburg battle