World War I By JamiyaH1 Jun 28, 1914 Assassination of Archduke Ferdinand Assassination of Archduke Jul 28, 1914 Austria Hungary declares war on Serbia Austria declares Serbia Aug 24, 1914 Japan Declares War on Germany Japan declares War on Germany Period: Apr 22, 1915 to May 25, 1915 The Second Battle of Ypres Battle of Ypres Period: Jul 1, 1916 to Nov 19, 1916 The Battle of Somme Battle of Somme Feb 25, 1917 The Zimmermann Telegram Zimmermann Telegram Period: Apr 9, 1917 to Apr 12, 1917 The Battle of Vimy Ridge Battle of the Vimy Ridge Period: Jul 31, 1917 to Nov 10, 1917 The Battle of Passchendaele Battle of Passchendala Period: Nov 20, 1917 to Dec 4, 1917 The Battle of Cambri Battle of Cambri Dec 7, 1917 U.S. Declares War on Austria Hungary U.S. and Austria War Mar 3, 1918 Germany and Russia Peace The Treaty of Brest-Litovsk Nov 11, 1918 Armstice Day Armstice Day Jul 28, 1919 The Treaty of Versailles Treaty of Versailles
