Answer
As the owner and breeder of Thoroughbred racehorses, Aga Khan IV has profoundly influenced the sport of horse racing globally. His involvement spans several decades, with a passion for breeding successful racehorses. Through his stud farms in France, Ireland, and the United Kingdom, Aga Khan IV has produced numerous champions and classic winners, leaving a lasting impact on the thoroughbred industry and elevating the sport to new heights.