History 767 Social conditions 164 Social life and customs 87 Politics and government 83 Social aspects 74 Race relations 73 Mexican Americans 72 mer ... Indians of North America 66 African Americans 60 Motion picture industry 60 Manners and customs 58 Art 52 Ethnic relations 51 Ethnic identity 48 Gold mines and mining 47 Motion pictures 47 Art collections 46 Description and travel 46 Japanese Americans 46 Law reviews 46 Art museums 45 Artists' books 43 Gold discoveries 43 Immigrants 43 Photograph collections 40 Private collections 38 Chinese Americans 37 Economic conditions 37 History and criticism 37 Exhibitions 36 mindre ...