"Western-style fast food" originated in the United States, and the modern fast food industry has developed rapidly since 1951s, and it has become popular all over the world.

since 1912, some people in the United States have used the concept of industrialized production line to manage restaurants, and established standards and strict management for food production, but the scale is not large. At the beginning, it was recognized as McDonald's that really drove the fast food industry to flourish.

After the Second World War, American living habits have changed greatly.

American culture values speed and efficiency more and more. There are fewer people who spend two or three hours eating lunch, and the form and content of lunch are becoming simpler and simpler. In the late forties and early fifties, cars began to enter middle-class families in the United States, and the mobility of the population increased greatly. Many people began to live in the suburbs. Under the impact of this series of changes, traditional catering does not meet people's needs. It was during this period that McDonald's rose, becoming the first successful representative of this new fast food model, and driving a large number of other brands. They specialize in a certain kind of food, pay attention to speed and convenience, and form an obvious competitive advantage with lower labor and raw material costs.

there is no English one, hehe, I'm sorry, you'd better translate it yourself.