WORLD WAR I By Darbarfer Jun 28, 1914 Assassination of the Arch duke Franz Ferdinand in Sarajevo Jul 28, 1914 Austria-Hungary declares war on Serbia, starting WWI Period: Jul 28, 1914 to Sep 12, 1914 THE WAR OF MOVEMENT Aug 2, 1914 The Ottoman Empire joins the Central Powers Aug 23, 1914 Japan adheres to the Triple Entente Period: Sep 12, 1914 to 1917 TRENCH WARFARE Apr 26, 1915 Italia joins the Triple Entente (Treaty of London) Sep 6, 1915 Bulgaria enters the war with the Central Power Period: Feb 21, 1916 to Dec 18, 1916 The Battle of Verdun Period: Jul 1, 1916 to Nov 18, 1916 Somme Offensive Period: 1917 to Nov 11, 1918 THE WARS ENDS Feb 1, 1917 Germany begins the submarine war Apr 4, 1917 The United States enters the war Dec 15, 1917 Russia signs the armistice with the Central Powers Jan 8, 1918 Wilson pronounces the speech on the 'Fourteen Points' Mar 3, 1918 Russia signs the Treaty of Brest-Litvosk Period: Aug 10, 1918 to Nov 11, 1918 Hundred Days Offensive Nov 11, 1918 Germany signs the armistice. The war is over. Jan 18, 1919 The Paris Conference Jun 28, 1919 The Treaty of Versailles with Germany
