The first athlete to win Olympic gold in decathlon was Jim Thorpe at the 1912 Stockholm Olympics. Thorpe's remarkable versatility across various track and field events showcased his athletic prowess and earned him the honor of being one of the greatest athletes of his time. His performance in both the decathlon and pentathlon captivated the world, leading to widespread recognition and admiration. Jim Thorpe's legacy continues to influence the sport and inspire future generations in the field of athletics.