The Big Mac became a major McDonald's brand icon after its introduction in 1967.
Jim Delligatti, a McDonald's franchisee in the Pittsburgh area, created the sandwich after experimenting with a larger hamburger. McDonald's introduced it nationally in 1968, following its initial regional debut in 1967. Its distinctive three-part bun, two beef patties, special sauce, lettuce, cheese, pickles, and onions gave it a strong identity within the menu.
The Big Mac helped McDonald's branding by giving the chain a signature product that could be named, advertised, and recognized internationally. Its memorable structure also made it visually distinct from a standard hamburger.
The dates are sometimes simplified: 1967 refers to the initial introduction, while 1968 marks national availability in the United States. The Quarter Pounder is a separate product, introduced later in 1971.