Daniel Sager By C235WesternCiv Jun 28, 1914 Franz Ferdinand assassinated Jun 28, 1914 Austria declares war on Serbia Aug 4, 1914 Germany invades Belgium May 7, 1915 Lusitania Sinks Sep 15, 1916 First use of tanks at Battle of Somme First use on Tanks Jan 11, 1917 Zimmerman Telegraph Apr 6, 1917 US Enters War Us enters war Nov 11, 1918 Armistice Jan 19, 1919 Paris Peace Conference Jun 28, 1919 Treaty of Versailles Apr 21, 2015 Citation Citation
