Westward/Gilded : Railroads , Assimilation, Child Labor , Monopolies/Trust , Progressive/Roaring 20s: 18th Amendment , Muckrakers , Assembly Line , Harlem Renaissance, US Expansionism/WWI: Rough Riders , Panama Canal, Trench Warfare , Treaty of Versailles , Great Depression/New Deal: Stock Market Crash , Unemployment , New Deal 3Rs, Dust Bowl , WWII: Pearl Harbor , Holocaust , Tuskegee Airmen , Atomic Bombs , Civil Rights : MLK , Brown v Board of Education , Little Rock Nine , Chicano Mural Movement , Cold War : Vietnam War , Cuban Missile Crisis , Space Race , Domino Theory , Conservative/Modern : Watergate Scandal , Iran Hostage Crisis , Barack Obama , Patriot Act ,

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