History 16 789 Politics and government 3 481 History and criticism 2 519 African Americans 1 948 Social conditions 1 863 Social aspects 1 647 Presidents 1 406 mer ... Race relations 1 371 Foreign relations 1 312 Women 1 258 Political aspects 1 049 American literature 972 Social life and customs 903 Law and legislation 879 Civil rights 821 International relations 762 Intellectual life 731 Slavery 708 Womyn 701 World War, 1939-1945 699 Manners and customs 693 Education 671 Criticism and interpretation 670 Economic conditions 669 Diplomatic relations 631 Influence 597 Biography 592 Authors, American 588 Civilization 566 Campaigns 541 mindre ...