Since 1992, the William Mark Corporation (WMC), makers of Exceptional Flying Products, has been dedicated to developing unique, high-quality products for extraordinary flight performance. The company was formed when Mark Forti, then a junior at Baylor University in Waco, Texas, invented the X-zylo for a marketing project. The product's performance amazed everyone who saw it. After stumping his physics professor as to why the object flew, Mark took it to his father, William, who worked in the aerospace industry. When William's aerodynamicist friends could not explain how it flew so far, William and Mark filed for patents and formed the William Mark Corporation.