History 621,809
Politics and government 394,274
Claims 240,668
Law and legislation 229,002
Bills, Private 223,928
Foreign relations 107,041
Government policy 64,051
Finance 63,744
Education 48,264
Appropriations and expenditures 47,013
Budget 45,148
Armed Forces 44,631
Economic conditions 43,416
Research 41,877
Taxation 41,662
African Americans 41,531
Social conditions 41,219
Diplomatic relations 40,579
International relations 40,391
Prevention 40,136
Expenditures, Public 38,260
Economic aspects 37,616
Officials and employees 37,316
Women 35,897
Presidents 35,877
Management 35,317
Slavery 33,980
Legal status, laws, etc 31,517
Periodicals 30,643
Study and teaching 30,223
Biography 29,934
Social aspects 29,874
States 29,375
Political science 28,365
Statistics 27,649
History and criticism 27,195
Evaluation 26,193
Medical care 26,075
World War, 1939-1945 25,724
Employment 25,657
Railroads 25,017
Description and travel 24,098
Race relations 23,924
Indians of North America 23,866
Social life and customs 23,421
Commerce 23,169
Civil rights 22,124
Popular music 22,034
Emigration and immigration 21,365
American 21,006
Jews 20,678
Employees 20,563
Economic policy 20,379
Histoire 20,266
Housing 19,968
Law 19,498
General 19,368
Relations 18,966
National security 18,946
Political aspects 18,632
Veterans 18,222
Environmental aspects 17,932
Services for 17,056
Congresses 17,000
Public lands 16,984
Tariff 16,683
Universities and colleges 16,332
Standards 16,177
Labor unions 16,133
Soldiers 15,986
Agriculture 15,964
Safety measures 15,851
Transportation 15,812
Older people 15,744
Foreign economic relations 15,475
Bibliography 15,416
Economic history 15,231
Governmental investigations 15,194
Salaries, etc 15,186
Small business 15,150
Rules and practice 14,869
Banks and banking 14,853
Travel 14,792
Civilization 14,627
Income tax 14,462
Administrative agencies 14,293
Terrorism 14,006
Wages 13,945
Religious aspects 13,681
World War, 1914-1918 13,388
Pollution 13,342
Planning 13,192
Regimental histories 13,091
Constitutional law 12,664
Public opinion 12,587
Architecture 12,572
Population 12,546
Campaigns 12,463
Military policy 12,294
Elections 12,090