World War 1 By JaVarius McCain Jun 28, 1914 Archduke Ferdinand Assassination of Archduke Ferdinand Jul 28, 1914 Austria-Hungary declares war on Serbia Austria-Hungary declares war on Serbia Aug 3, 1914 Germany declares war on France Germany declares war on France Aug 4, 1914 Britain declares war on Germany Britain declares war on Germany Period: Apr 22, 1915 to May 25, 1915 The Second Battle of Ypres The Second Battle of Ypres May 7, 1915 Lusitania Sinks Lusitania Sinks Period: Jul 1, 1916 to Nov 18, 1916 Battle of Somme Battle of Somme Sep 15, 1916 First Tanks First Tanks Apr 2, 1917 Wilson for War Wilson for War Period: Apr 9, 1917 to Apr 12, 1917 Battle of Vimy Ridge Battle of Vimy Ridge Period: Jul 31, 1917 to Nov 10, 1917 Battle of Passchendaele Battle of Passchendaele Period: Nov 20, 1917 to Dec 6, 1917 Battle of Cambrai Battle of Cambrai Period: Nov 11, 1918 to 2020 Armistice Day Armistice Day Jun 28, 1919 Signing of the Treaty of Versailles Treaty of Versailles
