WW1 TIMELINE By Oscalavista Jun 28, 1914 Francis Ferdinand assassination Francis Ferdinand was assassinated by Serbian nationalists and members of the Black Hand radical group due to anger over the annexation of serbia by the Austrio-Hungary. Jul 5, 1914 German support for Austrio Hungary Jul 28, 1914 Austria decars war on Serba. BUTTS Nov 11, 1918 The war ends Self explanitory