History Social conditions 104 African Americans 68 Social life and customs 65 Intellectual life 64 Politics and government 52 Race relations 51 más ... Buildings, structures, etc 49 Manners and customs 49 Ethnic relations 41 Immigrants 38 Architecture 31 City planning 30 City and town life 29 Economic conditions 28 Jews 28 Social aspects 28 Emigration and immigration 25 History and criticism 21 In literature 15 Intellectuals 14 Description and travel 13 Authors, American 12 Civilization 11 American literature 10 Puerto Ricans 10 Women 10 Bohemianism 9 Buildings 9 Commerce 9 menos ...