In 1920, at the age of 20, avid soccer player Adolph (Adi) Dassler, son of a cobbler, invented spiked shoes for track and field. Four years later Adi and his brother Rudolph (Rudi) founded the German sports shoe company Gebrüder Dassler OHG—later known as Adidas. By 1925 the Dasslers were making leather shoes with nailed studs and track shoes with hand-forged spikes. Beginning with the 1928 Olympics in Amsterdam, Adi's uniquely designed shoes began to gain a worldwide reputation. Jesse Owens was wearing a pair of Dassler's track shoes when he won four gold medals for the US at the 1936 Berlin Olympics. At the time of his death in 1959, Dassler held over 700 patents related to sports shoes and other athletic equipment. In 1978, he was inducted into the American Sporting Goods Industry Hall of Fame as one of the founders of the modern sporting goods industry.