History 2 Mexican War, 1846-1848 2 African Americans 1 Atomic bomb 1 Authors, American 1 Caricatures and cartoons 1 Concentration camps 1 more ... Death and burial 1 Evacuation and relocation, 1942-1945 1 Gold discoveries 1 Indians of North America 1 Japanese Americans 1 Political candidates 1 Politics and government 1 Prohibition 1 Slavery 1 Spanish-American War, 1898 1 Transportation 1 Vietnam War, 1961-1975 1 World War, 1914-1918 1 World War, 1939-1945 1 less ...