1914-1919 By ariel1243etlin Jun 24, 1914 Assasination of Franz Ferdinand Aug 1, 1914 Germany declares war on Russia Aug 4, 1914 Britain declairs war on Germany Aug 30, 1914 First German aeroplane raid on Paris Oct 15, 1914 Battle of Ypres beggins Period: Dec 1, 1914 to Dec 1, 1920 History WW1 Dec 25, 1914 Christmas Truce on the Western Front Apr 22, 1915 German uses gas at tthe battle of Ypres Feb 21, 1916 German attack at Verdun Jun 1, 1916 Battle of Jutland finishes Jul 1, 1916 Start of the Battle at Somme Sep 15, 1916 Tanks used for the first time at the Battle of Somme Apr 6, 1917 USA declares war on Germany Mar 3, 1918 Treaty of Brest-Litovsk signed Nov 11, 1918 Armistice Jun 28, 1919 Peace treaty at Versailes signed