WW1 By hcps-weissst Jun 28, 1914 Assassination of Archduke Franz Ferdinand This was the event that set off WWI Jul 28, 1914 Austria declared war on Serbia Aug 1, 1914 Germany declared war on Russia Aug 3, 1914 Germany declared war on France and implemented the Schleiffen plan Aug 4, 1914 Britain declares war on germany May 31, 1916 Battle of Jutland Sep 15, 1916 First use of mass of tanks at the somme Feb 1, 1917 Germany's unrestricted submarine warfare campaign started Apr 6, 1917 America declared war on germany Jul 31, 1917 Third battle of Ypres starts Dec 5, 1917 Armistice signed between Russia and Germany Nov 11, 1918 End of war, Armistice day.
