From a 1999 Dive Training magazine article:MikeC:Wasn't the Y one of the first to offer formal SCUBA training?
1951, Scripps Institution organized the first civilian diving course in the US, for scientific divers.
1954, LA County developed the first recreational diver training program.
1959, YMCA offered the first nation-wide program.
1960, NAUI
1961, NASDS
1966, PADI
etc.
Too bad the article didnt discuss training agencies in other countries.