History 797 Social conditions 168 Politics and government 128 Race relations 86 Social aspects 83 Social life and customs 80 African Americans 64 more ... Architecture 58 Ethnic relations 55 Japanese Americans 53 Mexican Americans 50 Motion picture industry 48 Ethnic identity 46 Economic conditions 44 Gold discoveries 44 Gold mines and mining 44 Indians of North America 43 History and criticism 40 Manners and customs 40 Motion pictures 40 Art collections 38 Art, American 38 Art museums 37 Civil rights 34 Political aspects 34 Description and travel 33 Criticism and interpretation 31 Emigration and immigration 31 Immigrants 31 Political activity 29 less ...