Gene Tunney was an American professional boxer who became the world heavyweight champion in the 1920s. Born on May 25, 1897, in New York City, he was known for his intelligence and strategic fighting style. Tunney is best remembered for his famous bouts against Jack Dempsey, particularly their second fight in 1927, which was one of the most significant matches in boxing history. After retiring from boxing in 1928, Tunney pursued a successful career in business and writing. He authored several books and articles, sharing his insights on boxing and sportsmanship. Tunney's legacy continues to influence the sport, and he is often regarded as one of the greatest heavyweight champions of all time.