McDonald's was founded in 1940 by Richard and Maurice McDonald. Ray Kroc joined the company in 1955 and established McDonald's as a franchise, growing it into a global brand. It is best known for its burgers, fries, and other sandwiches. Burger King was founded in 1953 in Florida and is known for products like the Whopper. KFC was founded in 1952 by Colonel Harland Sanders and is famous for fried chicken. It is now the world's second largest restaurant chain. All three chains have expanded globally and compete in the fast food industry by focusing on branding, convenient locations, and efficient operations.