Social conditions History 65 African Americans 20 Immigrants 15 Social life and customs 14 Race relations 11 Economic conditions 10 more ... Ethnic relations 10 Manners and customs 10 Politics and government 9 Emigration and immigration 8 City and town life 7 Intellectual life 7 Puerto Ricans 7 Social aspects 7 Social classes 7 City planning 5 Minorities 5 Race identity 5 African American youth 4 Civil rights 4 Community life 4 Community organization 4 Gangs 4 Inner cities 4 Jews 4 Migrations 4 Political activists 4 School improvement programs 4 Transnationalism 4 less ...