History 229 Politics and government 102 Presidents 50 World War, 1939-1945 41 Foreign relations 37 Social conditions 28 African Americans 27 History and criticism 25 Civilization 17 Social aspects 17 Authors, American 16 Social life and customs 15 Civil rights 14 Conduct of life 13 Philosophy 13 Women 13 World politics 13 Description and travel 12 Statesmen 12 Journalists 11 American literature 10 Families 10 Psychological aspects 10 Race relations 10 Theater 10 Actors 9 Causes 9 Civil rights movements 9 Jews 9 Military policy 9