Though the systems and device for diving had been developed, there wasn't a professional organization to guide and the train the divers. This gap was filled by John Cronin and Ralph Erickson in the year 1996. They took initiatives to create the world famous PADI (Professional Association of Diving Instructors). This was another key turning point in the history of diving. After the establishment, they have managed to issue over a million of certificates on diving and people have placed great trust on this professional body.