European history 60 Second World War 37 History of medicine 33 Postwar 20th century history, from c 1945 to c 2000 29 History of other lands 23 International relations 19 History 18 History of other geographical groupings and regions 17 Marxism & Communism 14 Literature & literary studies 13 Literature: history & criticism 13 Cultural studies 12 Social & cultural anthropology, ethnography 12 Sociology 11 Asian history 9 History and Archaeology 9 Modern warfare 9 20th century history: c 1900 to c 2000 8 General and world history 8 Human geography 8 Later 20th century c 1950 to c 1999 8 Literary studies: general 8 Politics & government 8 Ethnic studies 7 Socialism & left-of-centre democratic ideologies 7 c 1938 to c 1946 (World War Two period) 7 Estonia 6 Former Soviet Union, USSR (Europe) 6 African history 5 Cold wars and proxy conflicts 5