Social conditions History 43 African Americans 36 Economic conditions 18 Race relations 14 Ethnic groups 9 Ethnic relations 9 more ... Housing 9 Immigrants 9 Histoire 8 Puerto Ricans 8 Emigration and immigration 7 Politics and government 7 Conditions sociales 6 German Americans 6 City planning 5 Community life 5 Minorities 5 Social life and customs 5 Employment 4 Ethnic identity 4 Household employees 4 Italian Americans 4 Population 4 Urban renewal 4 African American women 3 Chinese Americans 3 Civil rights 3 Civilization 3 Employees 3 Ethnicity 3 Émigration et immigration 3 Jews 3 Philadelphia (Pa.) 3 Social aspects 3 Upper class 3 Américains d'origine allemande 2 Asian Americans 2 Asians 2 Charities 2 less ...