The Urantia Book was created in 1955-10.

The web address of the Urantia Book Historical Society Inc is: www.ubhistory.org

The Urantia Book is a published text containing spiritual and philosophical teachings, believed by some to have been transmitted by celestial beings. The Urantia Papers are the original manuscripts on which The Urantia Book is based. The Papers are said to have been authored by celestial beings but were later compiled and edited to create The Urantia Book.

This question has long been answered by Paper 92 of the Urantia Papers. In particular, the first Urantia Book did not exist when the words of 92:4.4 were written:

"There have been many events of religious revelation but only five of epochal significance":

1. The Dalamatian teachings. (early humans)

2. The Edenic teachings. (Adam and Eve)

3. Melchizedek of Salem.

4. Jesus of Nazareth. (Christ Michael)

5. The Urantia Papers.

So, Urantia Book can only be "the human compilation of the Urantia Papers into book format." Seemingly, an insignificant point unless in the future the Book becomes sacred to some readers, since as "Papers" that sacredness is not easily assigned (and perhaps why the revelators chose "Papers" for 92:4.4 knowing that "Book" would be the first published format).

The books of Urantia and the Apocrypha are considered religious texts that offer insights and teachings for their respective traditions. Whether they are "true" is a matter of individual belief and interpretation. Some people view them as sacred texts with deep spiritual significance, while others may approach them as historical or literary works.