The 1896 Olympics were regarded as a great success even though there were many obstacles and setbacks. The Games had the largest international participation of any sporting event to that date. The Panathinaiko Stadium, the only Olympic stadium used in the 19th Century, overflowed with the largest crowd ever to watch a sporting event. The highlight for the Greeks was the marathon victory by Spyridon Louis. The most successful competitor was German wrestler and gymnast Carl Schuhmann, who won four events.