History 749 Social conditions 159 Social life and customs 87 Politics and government 83 Social aspects 74 Race relations 73 Mexican Americans 69 more ... Indians of North America 64 African Americans 61 Motion picture industry 59 Manners and customs 58 Art 52 Ethnic identity 48 Ethnic relations 48 Description and travel 46 Japanese Americans 46 Law reviews 46 Motion pictures 46 Art collections 45 Art museums 44 Gold mines and mining 44 Immigrants 43 Artists' books 42 Gold discoveries 40 Photograph collections 40 Economic conditions 38 Private collections 38 Chinese Americans 37 History and criticism 37 Exhibitions 36 less ...