History 776 Social conditions 161 Politics and government 117 Social life and customs 84 Race relations 82 Social aspects 75 African Americans 62 meer ... Architecture 56 Ethnic relations 53 Manners and customs 49 Japanese Americans 48 Mexican Americans 46 Ethnic identity 43 Gold mines and mining 43 Indians of North America 43 Economic conditions 42 History and criticism 42 Motion picture industry 42 Gold discoveries 40 Art collections 38 Art, American 38 Art museums 37 Motion pictures 36 Criticism and interpretation 34 Description and travel 33 Immigrants 33 Civil rights 31 Intellectual life 29 Political aspects 29 Private collections 28 minder ...