20th century history: c 1900 to c 2000 5 Second World War 5 European history 4 The Holocaust 4 Austria 3 Fascism & Nazism 3 Genocide & ethnic cleansing 3 Oral history 3 Biography: historical, political & military 2 Biography: literary 2 Collected biographies 2 Literary studies: from c 1900 - 2 Postwar 20th century history, from c 1945 to c 2000 2 Social & cultural history 2 The Cold War 2 21st century history: from c 2000 - 1 Cultural studies 1 Documentary films 1 EU & European institutions 1 General & world history 1 German 1 History 1 History of sport 1 History of the Americas 1 History: earliest times to present day 1 History: theory & methods 1 Literary reference works 1 Local history 1 Military history 1 Regional & national history 1