Wendy's is an American international fast food restaurant chain founded by Dave Thomas on November 15, 1969, in Columbus, Ohio. Its headquarters moved to Dublin, Ohio, on January 29, 2006. As of December 31, 2018, Wendy's was the world's third-largest hamburger fast-food chain with 6,711 locations, following Burger King and McDonald's. On April 24, 2008, the company announced a merger with Triarc Companies Inc., a publicly traded company and the parent company of Arby's. Wendy's headquarters remained in Dublin. Following the merger, Triarc became known as Wendy's/Arby's Group, and later as the Wendy's Company following the sale of Arby's to Roark Capital Group. As of December 31, 2018, there are a total of 6,711 Wendy's outlets, including 353 that are company-owned and 6,358 that are franchised; 92% of all the locations are in North America. While the company determines standards for each store's exterior appearance, food quality, and menu, the store owners have control over hours of operations, interior decor, pricing, staff uniforms, and wages. The chain is known for its square hamburger patties served on circular buns, sea salt fries, and the Frosty, a form of soft-serve ice cream mixed with starches. Wendy's menu consists primarily of hamburgers, chicken sandwiches, French fries, and beverages such as the Frosty. Since phasing out their Big Classic, the company does not have a signature sandwich, such as the Burger King Whopper or the McDonald's Big Mac. Wendy's "old-fashioned" hamburgers were inspired by Dave Thomas's trips to Kewpee Hamburgers in his home town of Kalamazoo, Michigan. Kewpee sold square hamburgers and thick malt shakes. Thomas founded Wendy's in Columbus, Ohio, in 1969 and featured square patties with corners that stuck out from the sides of the circular bun, giving the impression of an abundance of good quality meat. The Columbus location later added a Tim Hortons and was closed on March 2, 2007, after 38 years of business, due to declining sales.