Although Crocker is called "the father of McDonald's", he didn't create the earliest McDonald's restaurant, and the real age of McDonald's is actually more than 51 years old.

the origin of "the father of McDonald's"

In the early 1951s, Crocker was still a seller of milk mixers. Once, he sold 11 milk mixers to a restaurant in California. He was very curious about it, because he didn't think it was necessary to add 11 milk mixers to a restaurant, so he went to that restaurant to find out. As a result, he was deeply inspired by the business philosophy of the two McDonald's brothers in that restaurant: low price, fast service and allowing young people to enjoy it in the car. Ray kroc thought that this practice of McDonald's Brothers was revolutionary and could be copied to other places, so he had his first McDonald's restaurant in Chicago.

At first, ray kroc cooperated with McDonald's Brothers in the form of franchise stores. In 1961, ray kroc bought the ownership of McDonald's restaurant from McDonald's brothers for $2.7 million, and promoted McDonald's restaurant to the whole United States in the form of chain. In 1968, McDonald's began to March overseas and eventually became a fast food "giant" with the most branches in the world.