History 459 Documentary films 161 Social conditions 114 Social aspects 103 African Americans 102 Politics and government 100 Presidents 84 more ... Race relations 73 History and criticism 70 Civil rights 69 Foreign relations 55 Political aspects 54 Government policy 50 Racism 50 Civil rights movements 43 Economic conditions 43 Law and legislation 43 Artists 42 Emigration and immigration 41 Environmental aspects 40 Women 37 Motion pictures 34 Immigrants 33 World War, 1939-1945 31 Art, American 30 Psychological aspects 30 Attitudes 29 Economic aspects 29 Social life and customs 29 Education 28 less ...