world war 1 By leslieeb Jun 28, 1914 Archduke Ferdinand https://www.history.com/this-day-in-history/wwi-archduke-franz-ferdinand-assassinated Jul 28, 1914 Austria Hungary Declares War On Serbia Austria-Hungary declares war on Serbia Aug 1, 1914 Germany Declares war on Russia Germany Declares war on Russia Aug 3, 1914 Germany Declares War On France Germany Declares war on France Aug 23, 1914 Battle of Mons Battle of Mons Aug 26, 1914 Battle of Tannenberg Battle of Tannenberg May 7, 1915 Lusitania Sinks Lusitania Sinks Feb 21, 1916 Battle of Verdum Battle of Verdum Jul 1, 1916 The Battle of Somme The Battle of Somme Sep 15, 1916 First Tanks First Tanks Feb 1, 1917 Submarines Back Submarines Back Jul 31, 1917 Battle of Passchendaele Battle of Passchendaele Nov 11, 1918 Entry of Armistice Day Entry of Armistice Day Jun 28, 1919 Treaty of Versailles Treaty of Versailles
