The Big Mac was created by Jim Delligatti, an early Ray Kroc franchisee, who was operating several restaurants in the Pittsburgh area. It was invented in the kitchen of Delligatti's first McDonald's franchise, located on McKnight Road in suburban Ross Township.[1] The Big Mac had two previous names, both of which failed in the marketplace: the Aristocrat, which consumers found difficult to pronounce and understand, and Blue Ribbon Burger. The third name, Big Mac, was created by Esther Glickstein Rose, a 21-year-old advertising secretary who worked at McDonald’s corporate headquarters in Oak Brook, Illinois.[2] The Big Mac debuted at Delligatti's Uniontown, Pennsylvania restaurant in 1967, selling for 45 cents.[3] It was designed to compete with Big Boy restaurants' Big Boy sandwich; Eat'n Park was the Pittsburgh area's Big Boy franchisee at the time.[4] The Big Mac proved popular, and it was added to the menu of all U.S. restaurants in 1968.[3]@Curionic

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