History 50,831
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Politics and government 21,853
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Social conditions 12,083
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Economic conditions 10,657
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Description and travel 8,556
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Women 8,052
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Law and legislation 6,307
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Women's rights 6,067
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Agriculture 6,007
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Foreign relations 5,709
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Antiquities 4,913
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Education 4,615
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Law 4,352
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Geology 4,169
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Economic policy 3,928
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Civilization 3,530
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Commerce 3,132
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Social life and customs 3,087
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History and criticism 3,046
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Economic aspects 2,988
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Industries 2,557
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Law reports, digests, etc 2,535
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Sources 2,425
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Population 2,314
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Research 2,285
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Botany 2,199
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Finance 2,126
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Colonies 1,990
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Land tenure 1,909
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Socialism 1,857
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Study and teaching 1,838
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World War, 1939-1945 1,837
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Geology, Stratigraphic 1,836
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Legal status, laws, etc 1,819
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Ethnology 1,780
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Communism 1,701
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Taxation 1,671
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Religion 1,585
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Statistics 1,470
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Constitutional law 1,461
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Missions 1,451
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Finance, Public 1,429
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Forests and forestry 1,418
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Working class 1,289
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Relations 1,286
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Rural development 1,275
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Banks and banking 1,274
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Biography 1,221
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Regional planning 1,176
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Paleontology 1,164
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Birth control 1,152
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Church history 1,118
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Excavations (Archaeology) 1,110
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Railroads 1,074
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Constitutional history 1,073
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Management 1,032
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Islam 1,027
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Criminal law 1,021
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Dao jiao shi 1,018
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Fo jiao shi 1,018
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Constitutions 1,015
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Employment 1,011
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Local government 1,002
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Labor unions 998
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Political science 991
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Dialects 988
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Officials and employees 973
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Rural conditions 973
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Intellectual life 971
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Kings and rulers 962
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Muslims 956
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Jews 949
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World War, 1914-1918 949
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Economic history 947
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Appropriations and expenditures 935
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Social aspects 930
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Histoire 926
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Elections 909
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Theater 908
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Travel 900
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Nationalism 894
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Periodicals 894
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Soils 894
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Nazi propaganda 887
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Medicine 883
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Budget 877
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City planning 876
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Mines and mineral resources 873
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Public health 865
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History, Military 862
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Music 852
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Indians of North America 849
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Land settlement 841
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Villages 829
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Labor 821
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Labor laws and legislation 816
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Petrology 806
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Science 793
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Dissertations 790
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Folklore 789
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