Volley gun
The Ribauldequin was a medieval version of the volley gun. It had its barrels set up in parallel. This early version was first employed during the Hundred Years' War by the army of Edward III of England, in 1339. Later on, the late Swiss army employed it.
George J. Fisher
With the beginning of World War I, volleyball spread worldwide. Dr. Fisher included volleyball in the recreation and education program for American armed forces as early as 1914 and American soldiers fighting in World War I played volleyball on the beaches of Normandy and Brittany. In 1919 Dr. Fisher made volleyball a part of the program in military training camps, both in the United States and abroad. He was the editor of the "Volleyball Rules Guide" for the Army and Navy.