Django Reinhardt is oft times considered the first real jazz guitarist. That is, as always in such sweeping statements, a bit of a simplification. But not that much of a simplification. True Django was not the first guitarist to play jazz. But he was one the first guitarist to make fast single note playing a staple. Certainly it was Django who put the stamp on the guitar as a major solo instrument.
Django played an acoustic guitar with amplification. This isn't quite the same as an electric guitar. You get a different sound certainly, but in a Humble CooperToons Opinion, Django's guitar produces a nicer, if admittedly less variable sound.
For a bit more of Django - whose music today is well worth listening too - just click here.