James J. Corbett, American boxer (died 1933)

James John Corbett was an American professional boxer and a World Heavyweight Champion, best known as the only man who ever defeated John L. Sullivan. Despite a career spanning only 20 bouts, Corbett faced the best competition his era had to offer, squaring off with a total of nine fighters who would later be enshrined alongside him in the International Boxing Hall of Fame.

September 1 is the 244th day of the year in the Gregorian calendar; 121 days remain until the end of the year.