History 144,778
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Politics and government 32,785
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History and criticism 28,347
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Social aspects 20,644
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Social conditions 17,220
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Philosophy 16,519
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Piano music 15,601
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Operas 15,160
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Education 13,392
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Symphonies 12,640
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Study and teaching 12,572
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Social life and customs 12,182
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Jazz 11,629
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Research 11,628
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Women 11,510
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Criticism and interpretation 11,300
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Law and legislation 10,802
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Motion pictures 10,781
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Economic conditions 10,401
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Orchestral music 9,484
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African Americans 9,162
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Music 9,143
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Religious aspects 8,980
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Political aspects 8,956
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Management 8,863
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Foreign relations 8,649
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Science 8,362
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Race relations 7,510
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Psychological aspects 7,451
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Sermons, English 7,379
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Frontier and pioneer life 7,213
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Christianity 7,159
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Popular music 7,138
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English language 7,133
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Medicine 6,784
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Religion 6,783
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Economic aspects 6,739
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Psychology 6,727
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Sonatas (Piano) 6,658
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Documentary films 6,449
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English poetry 6,447
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Civilization 6,349
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Description and travel 6,229
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Social sciences 6,223
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Law 6,210
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Historia 6,169
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General 6,030
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World War, 1939-1945 5,790
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Civil rights 5,739
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Government policy 5,639
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Mathematics 5,631
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Indians of North America 5,417
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Jews 5,386
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Diseases 5,235
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Prevention 5,218
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Drama 5,197
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Political science 4,991
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Antiquities 4,889
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Concertos (Piano) 4,841
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Educacion 4,756
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Intellectual life 4,729
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Environmental aspects 4,680
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String quartets 4,655
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Technology 4,632
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Economic policy 4,569
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Methodology 4,546
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Moral and ethical aspects 4,518
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Treatment 4,482
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Technological innovations 4,457
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Church history 4,419
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Literature 4,400
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Economics 4,343
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Organ music 4,149
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Finance 4,139
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Criticism, interpretation, etc 4,131
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Agriculture 4,092
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Christian life 4,092
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Suites (Orchestra) 4,018
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Art 4,010
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Data processing 3,935
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Racism 3,877
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Sociology 3,873
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Overtures 3,857
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Influence 3,845
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Conduct of life 3,798
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Economic development 3,789
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Emigration and immigration 3,779
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Slavery 3,750
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Presidents 3,741
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Families 3,620
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American literature 3,619
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Children 3,527
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Navajo Indians 3,518
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English literature 3,511
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Ethnic relations 3,511
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Human rights 3,368
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Legal status, laws, etc 3,334
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Grammar 3,329
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Relations 3,311
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Democracy 3,250
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