History 557 Social conditions 244 Social life and customs 199 Politics and government 177 Manners and customs 168 Intellectual life 142 African Americans 110 更多 ... Jews 98 Ethnic relations 97 Buildings, structures, etc 96 Race relations 92 Immigrants 88 Economic conditions 74 Description and travel 68 History and criticism 66 Emigration and immigration 60 City and town life 54 In literature 54 Social aspects 51 Architecture 42 City planning 40 Puerto Ricans 34 American literature 30 Criticism and interpretation 30 Authors, American 27 Homes and haunts 27 Civilization 26 Man-woman relationships 26 Women 26 Gay men 23 少 ...