History 768 Social conditions 160 Politics and government 117 Social life and customs 83 Race relations 82 Social aspects 74 African Americans 62 more ... Architecture 56 Ethnic relations 53 Japanese Americans 48 Manners and customs 48 Mexican Americans 46 Ethnic identity 43 Indians of North America 43 Economic conditions 42 Gold mines and mining 42 History and criticism 42 Motion picture industry 42 Gold discoveries 39 Art, American 38 Art collections 37 Art museums 36 Motion pictures 36 Immigrants 33 Criticism and interpretation 32 Description and travel 32 Civil rights 31 Political aspects 28 Private collections 28 World War, 1939-1945 28 less ...