Philosophy History 521 Science 202 Social sciences 182 Political science 179 Social aspects 167 Art 163 Methodology 123 Sociology 115 Education 106 Historiography 98 Literature 96 Architecture 80 International relations 80 Aesthetics 79 Culture 73 Political aspects 72 Language and languages 61 Postmodernism 58 Psychology 51 Technology 51 Psychological aspects 49 Civilization 48 History and criticism 48 Mathematics 45 Motion pictures 43 Criticism and interpretation 42 Physics 42 Photography 39 Addresses, essays, lectures 38