Civilization 1 649 History 1 056 Civil rights 343 Civil service 329 Civil engineering 239 Civilization, Modern 204 Politics and government 201 History and criticism 170 Social conditions 127 Philosophy 107 Congresses 96 Technology and civilization 92 Civilization, Medieval 86 Civilization, Medieval, in literature 86 Social life and customs 78 Periodicals 72 Biography 69 Intellectual life 69 Fiction 60 Science and civilization 60 Afro-Americans 58 Civilization, Western 55 Description and travel 54 Personal narratives 54 Computers and civilization 52 Civil procedure 50 Officials and employees 49 Social aspects 47 Sources 45 Foreign relations 44