Solo diving II. In the late 1940s, after the invention of the Aqua-lung by Cousteau and Gagnan, the first retail underwater breathing apparatus for sport was commercially marketed. As the sport expanded through the 1950s, several sporting organisations – notably the Young Men's Christian Association (YMCA) – began scuba training programmes for swimming enthusiasts, thus began the codification of what was believed to be proper practices for the expanding amateur sport of scuba diving. The buddy system was thought to be a useful corollary to the "never swim alone" edicts of the YMCA swimming and lifesaving programmes. Cousteau independently implemented a buddy
Jacques Cousteau Festival. He remained the only person to win a Palme d'Or for a documentary film, until Michael Moore won the award in 2004 for "Fahrenheit 9/11". Cousteau was born on 11 June 1910, in Saint-André-de-Cubzac, Gironde, France, to Daniel and Élisabeth Cousteau. He had one brother, Pierre-Antoine. Cousteau completed his preparatory studies at the Collège Stanislas in Paris. In 1930, he entered the École Navale and graduated as a gunnery officer. After an automobile accident cut short his career in naval aviation, Cousteau indulged his interest in the sea. The accident caused him to break both his arms and could