Other
Social conditions
History
86
African Americans
41
Economic conditions
31
Race relations
14
Politics and government
13
Social life and customs
13
Conditions sociales
11
Ethnic relations
11
Immigrants
11
Coal miners
9
Histoire
9
Puerto Ricans
9
City planning
8
Periodicals
8
Coal mines and mining
7
Community life
7
Emigration and immigration
7
Ethnic identity
7
Housing
7
Minorities
7
Social aspects
6
Societies, etc
6
Population
5
Public welfare
5
Slavery
5
Social classes
5
African American women
4
Charities
4
Education
4
German Americans
4
Household employees
4
Irish Americans
4
Pennsylvania
4
Social service
4
Social surveys
4
Citizen participation
3
Émigration et immigration
3
Hispanic Americans
3
Industries
3
Italian Americans
3
Labor and laboring classes
3
Labor movement
3
Labor unions
3
Land use
3
Noirs américains
3
Political refugees
3
Religious life and customs
3
Slovak Americans
3
Sources
3
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