Raymond Albert Kroc (October 5, 1902 – January 14, 1984) was an American businessman. He purchased the fast food company McDonald's in 1961 from the McDonald brothers and was its CEO from 1967 to 1973. Kroc is credited with the global expansion of McDonald's, turning it into the most successful fast food corporation in the world by revenue.Kroc was born in Oak Park, Illinois, and worked a variety of jobs, including as a paper cup salesman and a musician, before eventually becoming a milkshake mixer salesman. In 1954, he visited a hamburger restaurant in San Bernardino, California, owned by Richard and Maurice McDonald. Kroc was impressed with the efficiency and speed of the restaurant's operations, and he convinced the brothers to allow him to franchise the concept.