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The Declaration of Independence is a statement adopted by the continental congress. this statement made the thirteen american colonies independent states, and no longer ruled by the British Empire. en.wikipedia.org/wiki/United_States_Declaration_of_Independence
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The Constituition is the supreme law of the U.S. has three branches, Legislative, Executive, Judiciary. since it was made, it has been amended 27 times. en.wikipedia.org/wiki/United_States_Constitution
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The Louisiana Purchase was the acquisition by the United States of America in 1803 of 828,000 square miles of France's claim to the territory of Louisiana.
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The War of 1812 was a 32-month military conflict in which the United States took on the greatest naval power in the world, Great Britain.
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The Missouri Compromise was passed in 1820 between the pro-slavery and anti-slavery factions in the United States Congress, involving primarily the regulation of slavery in the western territories. It banned slavery in the former Louisiana Territory north of the parallel 36°30′ north except within the boundaries of the state of Missouri.
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by the mid - 1840s, thousands of americanss lived in the oregon country and on the western land claimed by mexico.
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The Compromise of 1850 were five bills passed in the United States in September 1850, which defused a four-year confrontation between the slave states of the South and the free states of the North regarding the status of territories acquired during the Mexican-American War
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The Gadsden Purchase region of present-day southern Arizona and southwestern New Mexico that was purchased by the United States in a treaty signed by James Gadsden
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The Emancipation Proclamation was an order issued by President Abraham Lincoln on January 1, 1863. It proclaimed the freedom of slaves in the ten states that were still in rebellion,[1] thus applying to 3.1 million of the 4 million slaves in the U.S. at the time.
