This Day in Auto History: 9.15.1908 The Republic Rubber Company of Youngstown, OH is issued a United States patent for its tire tread pattern marketed as “Staggard” 9.15.1918 Automobile historian Alfred DuPont Chandler Jr. is born in Guyencourt, DE 9.15.1930 The new administration building of the Auburn Automobile Company opens in Auburn, IN - the Auburn-Cord-Duesenberg Museum now occupies the restored building 9.15.1939 The 1940 Nashes are introduced 9.15.1951 The Aston Martin DB3/1 makes its racing with debut at the RAC Tourist Trophy race at Dunrod, Ireland, but the car driven by Lance Macklin had to retire due to bearing failure

Source: Automobile History Day By Day, by Douglas A. Wick