History 782 Social conditions 163 Politics and government 118 Social life and customs 84 Race relations 82 Social aspects 76 African Americans 62 mer ... Architecture 56 Ethnic relations 54 Manners and customs 49 Japanese Americans 48 Mexican Americans 47 Gold mines and mining 45 Ethnic identity 43 Indians of North America 43 Economic conditions 42 Gold discoveries 42 History and criticism 42 Motion picture industry 42 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 Emigration and immigration 28 mindre ...