The history of scuba diving is closely linked with the history of the equipment. By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface … See more

Air Liquide started selling the Cousteau-Gagnan regulator commercially in 1946 under the name of scaphandre Cousteau-Gagnan or CG45 ("C" for Cousteau, "G" for Gagnan and 45 … See more

The non-profit Divers Alert Network (DAN) was founded at Duke University in 1980 to promote safe diving. and has expanded into a global group of not-for-profit organisations providing safety and insurance services to members and maintaining … See more

A scuba set is characterized by full independence from the surface during use, by providing breathing gas carried by the diver. Early attempts to reach this autonomy were … See more

These early inventions were mostly based on a constant-flow supply of the air, and could produce the high pressures needed to supply compressed air to the diver. The compression and … See more

Scuba training of professional and recreational divers has been separate from the earliest days, but has developed in parallel as the … See more

Military diving
The first modern military scuba divers were the World War II Italian commando frogmen, of Decima Flottiglia MAS (now "ComSubIn": Comando Raggruppamento Subacquei e Incursori Teseo Tesei) which formed in 1938 and … See more