Brothers Richard and Maurice McDonald opened a drive-in restaurant, in San Bernardino, California. Initially called "McDonald's Bar-B-Q. In 1948 they took a risk by streamlining their operations and introducing their "Speedee" Service System featuring 15 cent hamburgers.
This drive-in restaurant is considered the origin of the McDonald's fast-food chain. In 1955, Ray Kroc, a milkshake mixer salesman, saw the potential of the McDonald's concept and began franchising the business, eventually buying out the McDonald brothers in 1961. More