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mediums. He worked with Howard Thurston in his efforts to debunk psychics. Around 1911, Sadler attempted to treat a patient with an unusual sleep condition. While sleeping, the man spoke to Sadler and claimed to be an extraterrestrial. After unsuccessful attempts to explain the phenomena, Sadler decided that the man's statements were accurate. For many years, Salder and a small number of assistants visited the man while he was sleeping to converse about spirituality, history, and cosmology. A larger number of interested people met as a group at Sadler's home to discuss the man's responses and to suggested additional questions. The man's words were eventually compiled in The Urantia Book, and the Urantia Foundation
was created to spread its message. Although it never became the basis of an organized religion, the book attracted committed followers who devoted themselves to its study. Sadler had close ties to the Urantia Foundation until his death in 1969.