In 1940, barbeque restaurant opened by siblings Dick and Mac McDonald in San Bernardino, California.
Their introduction of the "Speedee Service System" in 1948 established the principles of the modern fast-food restaurant. It’s selling 15 cent hamburgers and 10cent fries.
The present corporation dates its founding to the opening of a franchised restaurant by Ray Kroc, in Des Plaines, Illinois on April 15, 1955, the ninth McDonald's restaurant overall.
Kroc later purchased the McDonald brothers' equity in the company and led its worldwide expansion.
Ray Kroc mortgaged his home and invested his entire life savings to become the exclusive distributor of a five-spindled milk shake maker called the Multimixer.
Hearing about the McDonald's hamburger stand in California running eight Multimixers at a time, he packed up his car and headed west. It was 1954. He was 52 years old. Ray Kroc opened the Des Plaines restaurant in 1955.
First day's revenues was $366.12. No longer is a function restaurant, the Des Plaines building now a museum containing McDonald's memorabilia and artifacts, including the Multimixer.