McDonald's is the world's largest fast food chain. It is a chain of fast food restaurants founded by the McDonald brothers and Ray Kroc in the United States in the 1950s, mainly selling hamburgers. Promoted worldwide, McDonald's restaurants are located in more than 100 countries on six continents around the world. McDonald's has become the most valuable brand in the global catering industry. McDonald's represents an American lifestyle in many countries. McDonald's, the most well-known McDonald's brand, has more than 31,000 fast-food restaurants distributed in 121 countries and regions around the world. In addition, McDonald's now controls other restaurant brands, such as Aroma Cafe, Boston Market, Chipotle, Donatos Pizza and Pret a Manger. KFC originated from the United States and was founded in 1930. It is a world-famous fried chicken fast food chain enterprise with more than 10,000 restaurants around the world. As of the end of November 2007, KFC had more than 2,000 restaurants in more than 200 cities in mainland China. Strict and unified management and clean and elegant dining environment have left KFC with a good impression on hundreds of millions of customers. The arrival of KFC not only took the lead in introducing the modern concept of fast food to China, but also made people feel the fundamental difference from food flavor to dining style in traditional diet for the first time, and also had a significant impact on people's service concepts. KFC, along with the famous casual dining brand PIZZA HUT, the Mexican restaurant TACO BELL, A&W, and Long John Silver's (LJS), belong to one of the world's largest catering chains - Yum Brands, the founder of KFC - Colonel Harland Sanders. The colonel, who was born in 1890, had a life full of American-style success stories. When he was young, he worked in various industries, including railway firefighters, road maintenance workers, insurance agents, tire sales and gas station owners, etc., and finally worked in the catering industry. Found the destination of my career. When he was running a gas station in Kentucky, in order to increase his income, he made various snacks and provided them to passing tourists. The business developed slowly but steadily, and his reputation for cooking delicious meals also attracted passers-by. Tourist, the governor of Kentucky named him Colonel Kentucky in 1935 in recognition of his contribution to Kentucky's catering. The Colonel's most famous specialty is his carefully developed fried chicken. This has always been a popular product. It took the colonel ten years of blending to achieve a finger-licking aftertaste. When the colonel was 66 years old, he drove his 1946 Ford old car, carrying his eleven unique ingredients and his right-hand assistant-the pressure cooker, and set out on the road. He went to restaurants across Indiana, Ohio, and Kentucky to sell fried chicken recipes and methods to interested restaurants. Surprisingly, in just five years, Colonel's chain stores have reached 400 stores in the United States and Canada. When Yum founded KFC, he was a 66-year-old retiree with a monthly social security pension of US$105. Today, KFC has become the world's largest fried chicken chain. At the same time, the colonel also received the attention of the television station. Since he was busy cooking all day, he could only find a clean, white palm suit. This dress has since become his unique registered trademark. Since then, people have associated this suit with KFC; and his white suit, white hair, and goatee have become a national symbol.