World War I Timeline By jasmynarcond Period: Jan 1, 1914 to Jul 1, 1918 World War 1 Jun 28, 1914 Francis Ferdinand Assasinated 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 invaded Belgium. Germany had to implement the Schlieffen Plan. Aug 4, 1914 Britain declared war on Germany Jan 19, 1915 The first Zeppelin raid on Britain took place Feb 19, 1915 Britain bombarded Turkish forts in the Dardanelles May 23, 1915 Italy declared war on Germany and Austria Aug 5, 1915 The Germans captured Warsaw from the Russians Sep 25, 1915 Start of the Battle of Loos Feb 21, 1916 Start of the Battle of Verdun Apr 29, 1916 British forces surrendered to Turkish forces at Kut in Mesopotamia May 31, 1916 Battle of Jutland Jun 4, 1916 Start of the Brusilov Offensive Jul 1, 1916 Start of the Battle of the Somme Aug 10, 1916 End of the Brusilov Offensive Feb 1, 1917 Germany’s unrestricted submarine warfare campaign started Apr 6, 1917 USA declared war on Germany Apr 16, 1917 France launched an unsuccessful offensive on the Western Front Jul 31, 1917 Start of the Third Battle at Ypres Oct 24, 1917 Battle of Caporetto The Italian Army was heavily defeated Nov 6, 1917 Britain launched a major offensive on the Western Front Dec 5, 1917 Armistice between Germany and Russia signed Dec 9, 1917 Britain captured Jerusalem from the Turks Mar 3, 1918 The Treaty of Brest-Litovsk was signed between Russia and Germany. Mar 21, 1918 Germany broke through on the Somme Apr 9, 1918 Germany started an offensive in Flanders Jul 15, 1918 Second Battle of the Marne started. The start of the collapse of the German army Sep 19, 1918 Turkish forces collapsed at Megiddo Oct 4, 1918 Germany asked the Allies for an armistice Oct 29, 1918 Germany’s navy mutinied Oct 30, 1918 Turkey made peace Nov 3, 1918 Austria made peace Nov 9, 1918 Kaiser William II abdicated Nov 11, 1918 Germany signed an armistice with the Allies – the official date of the end of World War One.