Route 66 was established on November 11, 1926—with road signs erected the following year. Route 66 through the Southwestern United States generally followed the old wagon road blazed by Edward Beale in 1858 and 1859. See Beale Wagon Road.
For a detailed interactive map of the route, see National Park Service, Route 66, Discover Our Shared Heritage Travel Itierary
- A Brief History of Route 66
- History of Route 66
- Legendary Route 66
- Shadows of Old Route 66
- Auto Circle from USAA
- Route 66 Corridor Preservation Program
- National Park Service, Route 66 Overview
- Oklahoma Historical Society, Oklahoma Route 66 Museum
- June 27, 1985: Route 66 decertified
- Route 66 History
- Kittel, Gerd, Alexander Bloom, and Freddy Langer. Route 66. New York: Thames & Hudson, 2002.
- National Historic Route 66 Federation. Route 66 Dining & Lodging Guide. Lake Arrowhead, CA: National Historic Route 66 Federation, 2011.
- Steil, Tim, and Jim Luning. Route 66. Osceola, WI: MBI Pub. Co, 2000.
- Dunaway, David King, Michael Wallis, and Robert Waldmire. A Route 66 Companion. Austin: University of Texas Press, 2012.
- Wallis, Michael. Route 66: The Mother Road. New York: St. Martin's Press, 1990.
- McClanahan, Jerry, Jim Ross, and Shellee Graham. Route 66 Sightings. Arcadia, Okla: Ghost Town Press, 2011.
- "Route 66 Timeline". Legends of America. Retrieved April 15, 2012.