World War 1 By jrobertson10 Period: 1911 to 1912 Declaration of War, Italy Declaration of War, Italy Jun 28, 1914 Assassination of the Archduke Ferdinand Assassination of the Archduke Ferdinand Period: Jul 28, 1914 to Nov 11, 1918 Declaration of War, Austria-Hungary Declaration of War, Austria-Hungary Aug 25, 1914 Declaration of War, Japan Declaration of War Period: Aug 26, 1914 to Aug 30, 1914 Battle of Tannenberg Battle of Tannenberg Apr 22, 1915 Germans Fire German Fires Period: Feb 21, 1916 to Dec 18, 1916 Battle of Verdun Battle of Verdun Period: May 16, 1916 to Jun 1, 1916 Battle of Jutland Battle of Jutland Period: Jul 1, 1916 to Nov 18, 1916 Battle of the Somme Battle of the Somme Sep 15, 1916 First Tanks First Tanks Apr 6, 1917 U.S. Enters War U.S. Enters War Period: Jul 31, 1917 to Nov 10, 1917 Battle of Passchendaele Battle of Passchendaele Jun 28, 1919 Treaty of Versailles Treaty of Versailles Nov 11, 1919 Armistice Day Armistice Day
