World War 1 timeline By Stephanie Herrera Jun 28, 1914 Assassination of Achduke Ferdinand Jul 18, 1914 Austria-Hungary declares war on Serbia Jul 28, 1914 Austria-Hungary declares war on Russia and Serbia declares war on Germany. Aug 1, 1914 Germany declares war on Russia Aug 4, 1914 Germany declares war on France Aug 4, 1914 Germany declares war on France The United Kingdom declares war on Germany after Germany invades Belgium Sep 6, 1914 First Battle of the Marne begins Oct 19, 1914 Battle of Ypres Feb 4, 1915 Germany declares a "war zone" around Great Britain May 5, 1915 The British ocean liner RMS Lustinania by German U-boat Jan 16, 1917 Zimmerman Telegram Mar 19, 1917 Russia withdraws from war Apr 17, 1917 The U.S. Declares war on Germany Nov 7, 1917 Bolsheiviks overthrow government Jan 8, 1918 Woodrow Wilson’s Fourteen Points Sep 29, 1918 Germany signs armistice Jun 28, 1919 Treaty of Versailles