History 832
Social conditions 139
African Americans 120
Politics and government 107
Race relations 85
Social life and customs 80
Social aspects 79
Economic conditions 68
Indians of North America 58
Description and travel 47
Manners and customs 42
Society of Friends 39
Art 34
Education 33
Coal miners 32
Architecture 31
Urban renewal 30
Buildings, structures, etc 28
Gettysburg, Battle of, Gettysburg, Pa., 1863 27
City planning 26
Economic history 26
Ethnic relations 26
Labor unions 26
Church history 25
Quakers 25
Women 25
Working class 25
Labor movement 24
Religious aspects 23
Pennsylvania Dutch 22
Criticism and interpretation 21
Homes and haunts 21
Industries 21
Law 21
Antiquities 20
Coal mines and mining 20
Historic buildings 20
Immigrants 20
Civil rights 19
Geology 19
Private collections 19
Steel industry and trade 19
Economic aspects 18
Iron and steel workers 18
Law and legislation 18
Religion 18
African American women 17
Art, American 17
Law reviews 17
Political aspects 17
Prisoners 17
Intellectual life 16
Antislavery movements 15
Art collections 15
Art museums 15
Emigration and immigration 15
Frontier and pioneer life 15
Government policy 15
Painting 15
Theater 15
Cultural assimilation 14
History and criticism 14
Iroquois Indians 14
Jews 14
Civilization 13
Ethnic identity 13
Families 13
Finance 13
Free African Americans 13
Histoire 13
Historic sites 13
Medical care 13
Yellow fever 13
history 13
Architecture, Domestic 12
Community development 12
Elections 12
Employment 12
Moravians 12
Prisons 12
Slavery 12
Soldiers 12
Urbanization 12
Exhibitions 11
German Americans 11
Housing 11
Industrialization 11
Medicine 11
Printing 11
Railroads 11
Regimental histories 11
Strikes and lockouts 11
Travel 11
Accidents 10
Cities and towns 10
City and town life 10
Droit 10
Environmental conditions 10
Fugitive slaves 10
Languages 10