History 4,146,320 Visa posterna Politics and government 1,565,864 Visa posterna Economic conditions 484,984 Visa posterna Law and legislation 472,900 Visa posterna Description and travel 410,543 Visa posterna Social conditions 409,876 Visa posterna Social life and customs 345,928 Visa posterna History and criticism 328,376 Visa posterna Foreign relations 322,165 Visa posterna Antiquities 266,436 Visa posterna Claims 247,885 Visa posterna Political science 232,402 Visa posterna Civilization 227,214 Visa posterna Bills, Private 224,084 Visa posterna Biography 222,780 Visa posterna Education 220,826 Visa posterna World War, 1939-1945 207,032 Visa posterna Women 201,333 Visa posterna Histoire 196,737 Visa posterna Economic policy 194,716 Visa posterna Economic history 190,316 Visa posterna Jews 188,139 Visa posterna Travel 177,146 Visa posterna Periodicals 172,998 Visa posterna Economic aspects 160,189 Visa posterna Law 154,555 Visa posterna Social aspects 150,223 Visa posterna Finance 149,037 Visa posterna Manners and customs 147,725 Visa posterna Sources 141,968 Visa posterna Agriculture 139,125 Visa posterna Geology 137,426 Visa posterna Government policy 135,096 Visa posterna Study and teaching 133,290 Visa posterna Church history 132,539 Visa posterna Architecture 130,775 Visa posterna Diplomatic relations 130,458 Visa posterna Commerce 130,214 Visa posterna Intellectual life 128,492 Visa posterna International relations 122,148 Visa posterna Music 119,939 Visa posterna Art 115,793 Visa posterna Statistics 111,845 Visa posterna Taxation 110,643 Visa posterna Congresses 102,026 Visa posterna Research 100,684 Visa posterna Criticism and interpretation 99,811 Visa posterna Relations 99,074 Visa posterna Buildings, structures, etc 98,385 Visa posterna Legal status, laws, etc 95,429 Visa posterna Religion 94,832 Visa posterna Excavations (Archaeology) 91,323 Visa posterna Bibliography 89,473 Visa posterna Political aspects 87,242 Visa posterna Indians of North America 84,796 Visa posterna Armed Forces 82,360 Visa posterna Religious aspects 81,484 Visa posterna Management 81,000 Visa posterna Emigration and immigration 80,541 Visa posterna World War, 1914-1918 79,706 Visa posterna Ethnic relations 79,170 Visa posterna Population 78,659 Visa posterna Constitutional law 78,446 Visa posterna Industries 76,787 Visa posterna Officials and employees 73,475 Visa posterna City planning 71,338 Visa posterna African Americans 71,029 Visa posterna Railroads 70,917 Visa posterna Theater 70,132 Visa posterna Missions 69,977 Visa posterna Political activity 69,534 Visa posterna Popular music 69,380 Visa posterna Communism 68,983 Visa posterna Environmental aspects 67,326 Visa posterna Appropriations and expenditures 67,097 Visa posterna Prevention 66,643 Visa posterna History, Military 66,238 Visa posterna Folklore 65,546 Visa posterna Exhibitions 63,821 Visa posterna Campaigns 63,734 Visa posterna Elections 63,478 Visa posterna Housing 63,306 Visa posterna Presidents 63,224 Visa posterna Philosophy 62,806 Visa posterna Budget 62,667 Visa posterna Kings and rulers 62,552 Visa posterna Employment 62,551 Visa posterna Labor unions 62,121 Visa posterna Colonies 62,022 Visa posterna General 61,772 Visa posterna Ethnology 61,432 Visa posterna Motion pictures 60,650 Visa posterna Families 59,977 Visa posterna Civil rights 59,662 Visa posterna Roads 59,002 Visa posterna Finance, Public 58,967 Visa posterna Banks and banking 58,219 Visa posterna Slavery 57,990 Visa posterna Historiography 56,995 Visa posterna Working class 56,528 Visa posterna