History 254,763 Politics and government 66,055 History and criticism 57,616 Social aspects 33,963 Social conditions 30,705 Philosophy 28,238 Criticism and interpretation 25,099 more ... Jazz 24,546 Foreign relations 19,680 Women 19,550 Economic conditions 19,526 Social life and customs 18,856 Piano music 18,223 Education 18,026 Study and teaching 17,344 Religious aspects 16,592 Law and legislation 16,056 Research 15,813 Operas 15,694 Political aspects 15,270 African Americans 14,021 Symphonies 13,726 Music 13,328 Christianity 13,157 Motion pictures 13,021 Civilization 12,716 Management 12,301 Description and travel 12,081 Religion 11,988 Psychological aspects 11,796 less ...