Discordianism, based on worship of Eris, the Greek goddess of Chaos and confusion (among other things), was invented by Kerry W. Thornley aka Omar Khayyam Ravenhurst and Greg Hill Malaclypse the Younger. Principia Discordia was written by Hill, and includes material by Thornley, Robert Anton Wilson and others. This strange and relevant religion has captured the hearts and minds of people world-wide, thanks in part to the power of the Internet.