History 41 Politics and government 24 World War, 1914-1918 11 Foreign relations 9 Nationalism 7 Historiography 6 International relations 6 more ... Causes 5 Intellectual life 5 Ethnic relations 4 Art 3 Art and society 3 Art historians 3 Political aspects 3 Social conditions 3 Aristocracy (Social class) 2 Diplomatic and consular service, Austrian 2 Diplomatic relations 2 Diplomats 2 Economic conditions 2 Elite (Social sciences) 2 In literature 2 Political culture 2 Princes 2 Religious aspects 2 Social life and customs 2 Socialism 2 1916 1 20.01 history of the art sciences 1 Assassination 1 less ...