Causes History 1,453 Politics and government 622 Foreign relations 257 World War, 1914-1918 218 World War, 1939-1945 208 Colonies 195 more ... Slavery 104 War 87 Holocaust, Jewish (1939-1945) 85 Influence 83 Death 80 Political aspects 78 Diplomatic history 66 Mortality 56 Iraq War, 2003-2011 50 Ethnic relations 48 Social aspects 44 Social conditions 43 Historiography 42 World politics 41 Antisemitism 40 Administration 39 Jews 39 Secession 39 Antislavery movements 38 Relations 34 Nationalism 32 Economic aspects 31 Commerce 29 less ...