Philosophy History 518 Education 352 Science 333 Language and languages 131 Religion 128 Art 100 Literature 93 Physics 89 Civilization 86 Methodology 77 Mathematics 73 Congresses 63 Biology 55 Christianity 55 Aesthetics 48 Psychology 47 Law 43 Social aspects 41 Knowledge, Theory of 37 History and criticism 32 Political science 32 Periodicals 30 Technology 30 Ethics 29 Sociology 28 Historiography 26 Study and teaching 26 Logic, Symbolic and mathematical 24 Medicine 24