In 2168, a copy of the book was left on the planet Sigma Iotia II by a crew member of the starship Horizon. The book, which remained on the surface of the planet after the Horizon landing party had departed, was later discovered by the native Iotians, a highly imitative race. The Iotians reinvented their entire society based on the information in the book, thinking it was the model for a perfect society. Iotians treated The Book, as they called it, with near-religious reverence, and did not tolerate any disrespect against it. Copies of The Book could be found everywhere in Iotian society, including the headquarters of every major Boss. (TOS: "A Piece of the Action" )