General & world history History of the Americas 9 European history 3 20th century history: c 1900 to c 2000 2 History: earliest times to present day 2 African history 1 Agriculture & farming 1 Alternative lifestyles 1 Asian history 1 Central government 1 Fiction & related items 1 Genocide & ethnic cleansing 1 History 1 History of other lands 1 History of sport 1 History: theory & methods 1 Housing & homelessness 1 Humanities 1 Literary studies: general 1 Local history 1 Military history 1 Modern history to 20th century: c 1700 to c 1900 1 Naval forces & warfare 1 Oral history 1 Political ideologies 1 Postwar 20th century history, from c 1945 to c 2000 1 Psychiatry 1 Public health & preventive medicine 1 Regional & national history 1 Second World War 1