 In November 1997 Mayo Kaan placed advertisements in several newspapers and magazines claiming that he was the first person to don the Superman costume and was the model for the Superman character.His claims were denied by Jerry Siegel and Joe Shuster, the creators of the Superman series.The publishers of the Superman comic, DC Comics, stated that Shuster and Siegel were the sole creators of Superman and that this was established years before Kaan's claims.