History 666 Histoire 60 Social life and customs 42 Social conditions 39 African Americans 38 Race relations 24 Jews 23 more ... Politics and government 22 Buildings, structures, etc 20 Sources 18 Ethnic relations 17 Medicine 17 Quakers 17 Church history 16 History and criticism 16 Hospitals 15 Society of Friends 15 Prisons 14 Description and travel 13 history 13 German Americans 12 Italian Americans 12 Yellow fever 12 Administrative agencies 11 Germans 11 Immigrants 11 Quaker women 11 Societies, etc 11 Economic conditions 10 Anniversaries, etc 9 Baseball 9 Commerce 9 Emigration and immigration 9 Fire departments 9 Friendly societies--Pennsylvania--Philadelphia--History 9 Historic buildings 9 Irish Americans 9 Societies 9 Archives 8 Buildings 8 less ...