History 62 Presidents 57 Politics and government 46 Foreign relations 18 History and criticism 9 African Americans 7 Political aspects 7 more ... American literature 6 Civilization 6 Social aspects 6 Political culture 5 Speeches, addresses, etc., American 5 Authors, American 4 Description and travel 4 Election 4 Influence 4 Intellectual life 4 Journalists 4 Race relations 4 Social conditions 4 Spanish-American War, 1898 4 Statesmen 4 American poetry 3 Authors 3 Children's literature 3 Children's poetry, American 3 Conservation of natural resources 3 Environmentalism 3 Family 3 Frontier and pioneer life 3 less ...