Thomas Grady Martin isn't a well-known name in guitar circles these days, but he should be. Grady was a major session guitarist in the ‘50s and ‘60s who played the solo to Marty Robbins' 1961 hit "Don't Worry." But due to a blown pre-amp in the recording console, Grady's solo was distorted with a heavy fuzz sound. Robbins liked it and left it in, thereby giving birth to one of the first electronically created distortion effects. Other musicians had used everything from razor-bladed speakers to overheated tubes to get their distortion, but this one came straight from the studio circuitry.
The sound so inspired The Ventures that they asked Orville Rhodes, the engineer on Grady's session, to help them re-create it. Instead, Rhodes built a custom distortion unit to duplicate the sound that Grady had gotten, and many believe that unit might have been the first real fuzz box. So while Grady didn't invent distortion or any fuzz pedals, his track helped create an entire industry devoted to getting distortion from stomping on pedals.
Thanks, Grady. He died on December 3, 2001 at age 72. Here’s the recording; the infamous solo starts at 1:24.