History History of the Americas 20th century history: c 1900 to c 2000 3 Regional & national history 3 Social & cultural history 3 History: earliest times to present day 2 History: specific events & topics 2 Modern history to 20th century: c 1700 to c 1900 2 Oral history 2 Anthropology 1 Early modern history: c 1450/1500 to c 1700 1 Environmental science, engineering & technology 1 European history 1 Folklore, myths & legends 1 General & world history 1 Genocide & ethnic cleansing 1 History of other lands 1 History of sport 1 History: theory & methods 1 Local history 1 Maritime history 1 Military history 1 Postwar 20th century history, from c 1945 to c 2000 1 Second World War 1 Social & cultural anthropology, ethnography 1 The Holocaust 1 The arts 1