Who invented route 66?

Route 66 was not invented by a single individual but was established as part of the U.S. Highway System in 1926. The highway was designated by the American Association of State Highway Officials and was intended to connect Chicago, Illinois, to Santa Monica, California. The route became iconic for its role in American culture and travel, particularly during the Great Depression and the post-World War II era. Its creation was a collaborative effort involving various state and federal agencies.