At the time of its inception, Sierra Sciences' President was Dan Fylstra, founder of VisiCorp.
It was founded in 1976 by Dan Fylstra and Peter R. Jennings as Personal Software, and first published Jennings' Microchess program for the MOS Technology KIM-1 computer, and later Commodore PET and Apple II versions.
Dan Aykroyd | Steely Dan | Dan Quayle | Dan Rather | Dan Cruickshank | Dan Brown | Dan Simmons | Dan Fogelberg | Dan Abnett | England Dan & John Ford Coley | Dan Ryan Expressway | Dan Deacon | Dan Reeves | Dan Graham | Dan Burton | Dan Wheldon | Dan | Dan Savage | Dan in Real Life | Dan Hill | Dan Flavin | Dan Vapid | Dan Sperber | Dan Penn | Dan Bricklin | Dan Tyminski | Dan Slott | Dan Lipinski | Dan Fante | Dan Dare |