The AAA Contest Board was the motorsports arm of the American Automobile Association. The contest board sanctioned automobile races from 1904 until 1955, establishing of Championship Car racing. Modern-day IndyCar racing traces its roots directly to these AAA events. All of the races at the Indianapolis Motor Speedway during that time period were sanctioned by AAA, including the Indianapolis 500. AAA sanctioned the 1905 National Motor Car Championship, the first national championship for major auto racing. It sanctioned the National Championship in 1916, and then from 1920 to 1955. It also sanctioned the Vanderbilt Cup. The AAA Contest Board dissolved and decided to focus strictly on helping the automobiling public, as a result of the 1955 Le Mans disaster. History AAA was established in Chicago, Illinois on 4 March 1902. By June the same year, AAA also established the Racing Board. Arthur Rayner Pardington was appointed chairman and the board sanctioned its first race, the 1904 Vanderbilt Cup held in Long Island, New York. It is unclear as to why William Vanderbilt had AAA sanction his race as opposed to the Automobile Club of America, the predominant sanctioning body for major U.S. racing at the time. With the success of the racing board's experience sanctioning automobile events in 1904, the board announced a national track championship for 1905. The National Motor Car Championship was the first time in American racing history that a points system was used to officially decide an annual champion. From 1906 through 1915 the racing board, inexplicably, recognized no official championship seasons. It did, however, continue to sanction numerous individual events, the Vanderbilt Cup and events at the Indianapolis Motor Speedway. In 1908, the ACA created the American Grand Prize, the first traces of Grand Prix style racing in the U.S. along with the then established Vanderbilt Cup. This race started a feud between the ACA and AAA. Later in 1908 it was decided that AAA would sanction all big time racing nationally and the ACA would sanction all international events held on American soil. On 2 December 1908, AAA dissolved the Racing Board and created the Contest Board soon after. Though the rationale for this decision has been lost with time, the move was most likely done to allow AAA to oversee all automobile events and not just racing contests. The Manufacturers Contest Association (MCA) urged AAA to organize racing so American manufacturers could race