Born on June 11, 1910, in Saint-André-de-Cubzac, France, Jacques Cousteau co-invented the Aqua-Lung, a breathing device for scuba-diving, in 1943. In 1945, he started the French Navy's undersea research group. In 1951, he began going on yearly trips to explore the ocean on the Calypso. Cousteau recorded his trips on the TV series The Undersea World of Jacques Cousteau. In 1996, the Calypso sunk. Cousteau died on June 25, 1997, in Paris, France.