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Ohio becomes a state of the U.S.
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The Louisiana Purchase: U.S. buys French land in North America.
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The 12th Amendment is added to the U.S. Constitution.
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Lousiana becomes a state in the U.S.
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U.S. presidential election, James Madison defeats De Witt Clinton.
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Trade war between U.S.A. and Britain.
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Indiana becomes a state of the U.S.
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Mississippi becomes a state of the U.S.
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Illinois becomes a state of the U.S.
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Alabama becomes a state of the U.S.
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Spain loses Florida to the United States.
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"Missouri Compromise" - Maine enters Union as free state, and Missouri as a slave state (in 1821)
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Missouri becomes a state of the U.S.
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Monroe Doctrine U.S.A.: President Monroe warns Europeans not to interfere in U.S. affairs.
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U.S. presidential election; Andrew Jackson defeats John Quincy Adams
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U.S. settlers move West, driving many Native North Americans from their homes.
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Texas declares its right to secede from Mexico.
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American rebels massacred by Mexican forces at the Alamo mission station. Texas breaks away from Mexico and forms a republic.
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New telegraph code is designed by Samuel morse replacing the one used by Cooke and Wheatstone.
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Texas and Florida become states of the U.S.A.
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War between Mexico and the U.S. over boundaries. Mexico loses California, New Mexico, Arizona, Utah, and Colorado.
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First US women's rights convention meets in Seneca Falls, New York.
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Gold is discovered in California. This leads to a huge rush to the West by settlers in search of gold.
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California becomes a state of the U.S.
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Isaac Singer produces the first practical sewing machine.
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Republican Party formed in the U.S.
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Theodore Roosevelt, 26th president of the U.S.
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Oil is discovered in Pennsylvania, which leads to the start of the modern oil industry.
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Abraham Lincoln becomes the U.S. President.
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Fort Sumter, South Carolina, is captured by the Confederates. First battle of bull run: a high point for the south.
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The northern Unionists wanted to preserve the unity of the U.S.A. This provoked a bloody civil war.
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"Emancipation proclamation" – all slaves held in rebelling territory declared free (put into effect 01/01/1863)
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Iowa becomes a state of the U.S.
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Thirteenth Amendment to the U.S. Constitution abolishes slavery.
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Slavery is abolished in the U.S.A. Lincoln is assassinated.
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Abraham Lincoln was assassinated.
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United States purchases Alaska from Russia for $7 million.
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The telephone is patented in the U.S.A. by Alexander G. Bell.