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The American Revolutionary War between the 13 colonies and the British results in American independence after 8 years of war.
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Declaration of Independence The founding fathers sign the Declaration of Independence, declaring their sovereignty and break from England.
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Treaty of Paris of 1783 ends the American Revolutionary War and England recognizes US independence.
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The US purchase of the Louisiana territory doubles the size of the United States. Purchased for $15 million, it was less than 30 cents per acre!
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Washington D.C. BurnsBritish burn the White House down in Washington D.C.
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The American Civil War between the North and the South results in the passing of the 13th Amendment, abolishment of slavery, and preservation of the Union.
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Adoption of the 13th Amendment abolishes slavery in the United States.
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The Industrialization and Reform Era of the U.S. results in a shift from agrarian to urban society and many progressive reforms in response to the problems caused by this shift.
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The US enters the war on the side of the Allied Powers, shifting the stalemate of the war into an Allied victory.
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Black TuesdayStock Market crashes.
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The Allied Powers (UK, France, Russia, USA) defeat the Axis Powers (Germany, Italy, Japan) to preserve democracy.
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Japan Bombs Pearl HarborUS enters World War II after the sneak attack bombing of the naval base at Pearl Harbor.
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Hiroshima bombedUS first and only nation to drop Atomic bomb on another nation.
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The bipolar superpowers (USA and USSR) fight for dominance in a post war world, eventually resulting in the fall of the Soviet Union.
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Baby BoomersBaby Boom changes US demographics.
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[Montgomery Bus Boycott](http:/http://www.montgomeryboycott.com//)Rosa Parks refuses to give up her seat, launching the Montgomery Bus Boycott and Civil Rights Movement.
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9/11Terrorist attack on world trade center.