Nostradamus, regarded as the most well-known prophet in the history, wasn't alone. Edgar Cayce, America's most famous psychic, predicted the 1929 stock market crash and the coming of World War II. Joseph Smith, the founder of the Mormon religion, claimed to receive messages directly from God foretelling terrors of a corrupted government and an impending bloody civil war. St. Malachy predicted that the next pope would signal a time of great tribulation and ultimately, the end of the world. Isaac Newton determined when the horrors depicted in the Book of Revelations would come to pass. Web Bot, a computer program, predicted global catastrophes such as September 11. Web Bot's data is warning of the end of world around December 2012. Hugh Vail is prepping his family for apocalyptic scenarios and helping others through the American Preppers Network.