The Urantia Papers is a spiritual and philosophical book that originated in Chicago sometime between 1924 and 1955. The authorship remains a matter of speculation. The authors introduce the word "Urantia" as the name of the planet Earth and state that their intent is to "present enlarged concepts and advanced truth." The book aims to unite religion, science and philosophy, and its enormous amount of material about science is unique among literature claimed to be presented by celestial beings. Among other topics, the book discusses the origin and meaning of life, mankind's place in the universe, the relationship between God and people, and the life of Jesus. It has been described as "a rich and complex moral narrative, equal parts Tolkien and St. Paul."