World War 1 By mikylahh Jun 28, 1914 Archduke Assasination Archduke Ferdinand Jul 28, 1914 Austria-Hungary declares war on Serbia Austria-Hungary declares war on Sebria Jul 30, 1914 Russia mobilizes Russia Mobilizes Period: Aug 26, 1914 to Aug 30, 1914 Battle of Tannenburg Battle of Tannenberg Period: Sep 6, 1914 to Sep 10, 1914 Battle of the Marne Battle of Marne Sep 18, 1915 Germany limits Submarines Germany Limits Submarines Oct 19, 1915 Russia and Italy declare war on Bulgaria Russia and Italy declares war Period: Feb 19, 1916 to Dec 18, 1916 Battle of Verdun Battle of Verdun Mar 9, 1916 Germany declares war on Portugal Germany declares war Period: May 31, 1916 to Jun 1, 1916 Battle of Jutland Battle of Jutland Period: Jun 1, 1916 to Nov 18, 1916 Battle of the Somme Battle of the Somme Sep 15, 1916 British Heavy Tanks of WW1 First Tanks Nov 11, 1918 Armistice Day Armistice Day Period: Jun 28, 1919 to Jan 21, 1920 Treaty of Versailles Treaty of Versailles
