The Big Mac was created by Jim Delligatti, an early Ray Kroc franchisee, who was operating several restaurants in the Pittsburgh area.  The Big Mac turned 50 years old in 2017.

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.

The Big Mac has 540 calories and 34 grams of fat.

There are an average of 178 sesame seeds on the bun.

It originally sold for $0.45

The Big Mac is known worldwide and is often used as a symbol of American capitalism. The Economist has used it as a reference point for comparing the cost of living in different countries – the Big Mac Index.

The Big Mac Sauce is delivered to McDonald’s restaurants in sealed canisters designed by Sealright, from which it is meant to be directly dispensed using a special calibrated “sauce gun” that dispenses a specified amount of the sauce for each pull of the trigger. Its design is similar to a caulking gun.

The Two all-beef patties, special sauce, lettuce, cheese, pickles, onions – on a sesame seed bun concept for the jingle was created by Keith Reinhard, Chairman Emeritus of DDB Worldwide, and his creative group at Needham Harper and Steers.

On August 22, 2007, McDonald’s opened the Big Mac Museum in North Huntingdon, Pennsylvania to celebrate the Big Mac’s 40th anniversary.