History 482 Social conditions 139 Politics and government 111 African Americans 105 Social aspects 103 Presidents 85 Documentary films 84 more ... Race relations 69 Civil rights 68 Foreign relations 54 Racism 53 Economic conditions 51 Government policy 50 Artists 49 Social life and customs 49 World War, 1939-1945 46 Law and legislation 45 Civil rights movements 43 Political aspects 43 Environmental aspects 42 Women 42 Emigration and immigration 41 Immigrants 35 Economic aspects 34 Political activity 32 Attitudes 31 Education 31 Psychological aspects 31 Art, American 29 History and criticism 29 less ...