Politics and government 163 History 39 Law 29 Ordinances, Municipal 27 African Americans 16 Arrêtés municipaux 16 Political activity 15 more ... Almanacs, American 11 Social conditions 10 Ethnic groups 7 Race relations 7 Administrative and political divisions 6 Economic conditions 6 Elections 6 Histoire 5 Political parties 5 Societies, etc 5 American essays 4 History and criticism 4 Mayors 4 Polish Americans 4 Political culture 4 African American political activists 3 City planning 3 Civil rights 3 Civil rights movements 3 German Americans 3 Libraries 3 Lithuanian Americans 3 Maps 3 Mayors--Pennsylvania--Philadelphia 3 Periodicals 3 Philadelphia (Pa.)--City planning 3 Philadelphia (Pa.)--History--20th century 3 Philadelphia (Pa.)--Officials and employees 3 Philadelphia (Pa.)--Social conditions--20th century 3 Political clubs 3 Urban policy 3 African American baseball players 2 African American teachers 2 less ...