Weird History Food is going through the drive-thru for some Wendy's. Dave Thomas is best known for founding Wendy's hamburger restaurant chain in Columbus, Ohio. He became Wendy's TV spokesman in 1989. Dave opened his own restaurant on November 15, 1969: Wendy's, named after Thomas' 8-year-old daughter. Wendy's quickly caught on, and within less than a decade, had grown into a 1,000-store franchise.