History 445 History and criticism 133 Social aspects 104 Philosophy 101 Politics and government 78 Social conditions 66 Political aspects 50 Addresses, essays, lectures 48 Criticism and interpretation 48 Art 40 Sociology 36 Encyclopedias and dictionaries 32 Race relations 32 Research 32 Civilization 31 Science 31 Economic conditions 30 English literature 29 Methodology 29 Historiography 28 Social life and customs 27 Case studies 26 Cartography 25 Popular culture 24 Psychology 24 Art, Modern 23 Foreign relations 23 Management 23 Social sciences 23 African Americans 22