First World War and pre-war years By Wacho Period: 1860 to 1914 Pre-war years 1871 German unification 1871 Italian unification 1872 League of the Three Emperors 1882 Triple Alliance 1904 Entente Cordiale 1907 Triple Entente 1914 Assassination of Franz Ferdinand Period: 1914 to 1918 First World War Dec 9, 1914 First Battle of the Marne 1916 Battle of Verdun 1919 Paris Peace Conference
