Research & information: general 82 Education 46 Technology: general issues 40 Literature & literary studies 36 History 35 History of engineering & technology 35 Society & social sciences 32 Biology, life sciences 28 Literature: history & criticism 21 Medicine 21 Archaeology 19 European history 17 linguistics 17 Politics & government 16 Science: general issues 16 Humanities 14 Political economy 14 Political science & theory 14 Sociology 14 Cultural studies 13 History of the Americas 13 Anthropology 11 Economic theory & philosophy 11 Geography 11 Media studies 11 Psychology 11 Social & cultural anthropology, ethnography 11 Society & culture: general 11 Development economics & emerging economies 10 Early modern history: c 1450/1500 to c 1700 10