Causes History 1,407 Politics and government 607 Foreign relations 243 World War, 1914-1918 206 World War, 1939-1945 202 Colonies 194 more ... Slavery 104 War 87 Holocaust, Jewish (1939-1945) 84 Influence 82 Death 78 Political aspects 78 Diplomatic history 65 Mortality 54 Iraq War, 2003-2011 48 Ethnic relations 47 Social aspects 44 Historiography 42 Social conditions 42 World politics 40 Administration 39 Antisemitism 39 Jews 39 Secession 39 Antislavery movements 38 Relations 33 Nationalism 32 Economic aspects 31 Commerce 29 less ...