History 419,367
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Law and legislation 172,720
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Politics and government 147,976
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Claims 84,738
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Foreign relations 57,511
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Social conditions 56,787
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Government policy 56,671
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Economic conditions 56,496
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History and criticism 55,253
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Finance 46,295
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Indians of North America 41,492
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Legislative amendments 40,492
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Social life and customs 34,868
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Social aspects 34,022
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Appropriations and expenditures 33,530
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Economic aspects 30,783
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Description and travel 30,760
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Education 30,758
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Prevention 30,393
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Women 30,349
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Management 28,705
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Armed Forces 28,574
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Legal status, laws, etc 27,422
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Geology 27,354
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Research 27,291
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Taxation 26,773
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Law 25,045
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Civilization 25,028
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Environmental aspects 24,365
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Economic policy 23,674
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Officials and employees 21,219
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Political aspects 21,056
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Antiquities 20,900
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World War, 1939-1945 20,797
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Evaluation 19,742
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Budget 19,082
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Constitutional law 18,588
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Commerce 18,428
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Study and teaching 18,282
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Medical care 17,111
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Intellectual life 16,936
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African Americans 16,786
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Economic history 16,679
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Public lands 16,248
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Agriculture 15,975
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Race relations 15,759
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Criticism and interpretation 15,036
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Railroads 14,619
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Immigrants 14,348
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International relations 14,304
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Presidents 14,293
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National security 14,078
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Diplomatic relations 14,075
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Emigration and immigration 14,050
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Flood insurance 13,869
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Employment 13,744
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Bills, Private 13,483
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Housing 13,475
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Civil rights 13,311
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Jews 12,689
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Pollution 12,645
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Church history 12,148
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Services for 12,094
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Religion 12,075
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States 12,047
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Music 11,880
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Cost 11,873
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Veterans 11,731
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Relations 11,575
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Planning 11,494
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Water-supply 11,330
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Ethnic relations 11,253
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Safety measures 10,976
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Small business 10,971
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Banks and banking 10,960
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Land titles 10,788
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United States 10,746
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Groundwater 10,626
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Foreign economic relations 10,624
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Terrorism 10,583
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Legislative history 10,525
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Public buildings 10,463
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Bridges 10,453
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Administrative agencies 10,449
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Navigation 10,422
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Travel 10,370
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Mines and mineral resources 10,275
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Transportation 10,163
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Religious aspects 10,073
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Standards 10,004
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Population 9,762
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Architecture 9,694
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Public contracts 9,580
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Finance, Public 9,464
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Governmental investigations 9,437
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Political activity 9,375
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Economic development 9,349
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Colonies 9,341
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In literature 9,315
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Influence 9,313
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