events of ww1 By chief_mahd Jun 28, 1914 ferdinand assassinated May 7, 1915 "lusitania" Jan 22, 1916 peace without victory sheet Mar 8, 1916 russia overthrows the czar Nov 7, 1916 wilson re-elected Jan 16, 1917 zimmermen note Apr 21, 1917 wilson elected May 18, 1917 selective service act