Michel Cretu, the man behind Enigma, really started the ball rolling. I'm sure some music historians would be happy to explain that he did not, in fact, start anything - rather he copied x, who was heavily influenced by y, who was practically a student of z, on back to the beginnings of Gregorian Chant. Fine. I concede that Cretu didn't invent music, and he probably didn't even invent this genre. What he did do was produce an incredibly popular and accessible series of albums that put the genre on the radio, and into the ears of the masses.