History 11 327 Education 6 127 General 6 010 Historia 5 564 Educación 4 637 History and criticism 3 777 Philosophy 3 574 mer ... Ciencias sociales 3 432 Politics and government 3 085 Periodicals 2 756 Research 2 756 Publicaciones periódicas 2 661 Technology 2 636 Filosofía 2 615 Science 2 612 Study and teaching 2 583 Economic conditions 2 546 Medicina 2 301 Tecnología 2 283 Social aspects 2 233 Psicología 2 228 Management 2 185 Law 2 137 Social conditions 2 110 Psychology 2 067 Social Science 2 056 Derecho 2 049 Agricultura 2 012 Agriculture 1 980 Law and legislation 1 910 mindre ...