The Urantia Book (sometimes called The Urantia Papers or The Fifth Epochal Revelation) is a spiritual, philosophical, and religious book that originated in Chicago, Illinois, United States sometime between 1924 and 1955. The authorship remains a matter of debate. It has received various degrees of interest ranging from praise to criticism for its religious and science-related content, its unusual length, and the unusual names and origins of the authors named within the book. The text introduces the word "Urantia" as the name of the planet Earth and states that its intent is to "present enlarged concepts and advanced truth."[1][2] The book aims to unite religion, science, and philosophy.[3] Its large amount of content on topics of interest to science is unique among documents said to have been received from celestial beings.[4] Among other topics, the book discusses the origin and meaning of life, mankind's place in the universe, the history of the planet, the relationship between God and people, and the life of Jesus.