History By jacobt029 Jun 28, 1914 Archduke Francis Ferdinand Period: Jun 28, 1914 to Dec 11, 1941 History Jul 28, 1914 Austria Hungary declares war on Serbia Aug 1, 1914 Germany declares war on Russia Aug 3, 1914 Germany declares war on France Aug 4, 1914 Germany invades Belgium May 7, 1915 German U Boats sink the Lustitania Jan 11, 1917 The Zimmerman Note is discovred Jan 31, 1917 Germany announces unrestricted submarine warfare Mar 1, 1917 Russian Monarchy is overthrown Mar 3, 1918 Russia signs the treaty of Brest Litovsk May 16, 1919 Congress passes the Sedition Act Jun 28, 1919 Germany signs the treaty of Versailles Dec 11, 1941 The US declares war on Germany
