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First 10 amendments, or Bill of Rights, is added to the U.S. Constitution.
http://www.softschools.com/facts/us_government/bill_of_rights_facts/790/ -
Eli Whitney's improved cotton gin increases U.S. cotton cultivation and expands demand for slave labor.
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Washington D.C. becomes the U.S. capital.
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Thomas Jefferson and John Adams die on the same day, July 4th, 1826
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Underground Railroad, a secret system for helping fugitive slaves reach safety, is orgaized
http://www.history.com/topics/black-history/underground-railroad -
US population is 17.1 million
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Famine in Ireland due to potato-crop failure causes increased emigration from Ireland to United States.
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California gold rush begins as thousands of gold miners travel to Sacramento area.
(http://www.history.com/topics/gold-rush-of-1849) -
Modern Republican party is organized to oppose the extension to oppose the extension of slavery
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U.S Supreme Court's Dred Scott decision antagonizes antislavery forces.
