Question: what were the major events in ww1?
Answer: Jun 28, 1914. Archduke Assassination. Archduke Franz Ferdinand is assassinated in Sarajevo. ... 
Jul 30, 1914. Russia Mobilizes. ... 
Aug 4, 1914. World War I Begins. ... 
Apr 22, 1915. Germans Fire. ... 
May 7, 1915. Lusitania Sinks. ... 
Sep 18, 1915. Germany Limits Submarines. ... 
Sep 15, 1916. First Tanks. ... 
Feb 1, 1917. Submarines Back.