Avesta word for "praise-song" (Bartholomae: "Lobgesang"); that word is not actually attested in any text. The surviving texts of the Avesta, as they exist today, derive from a single master copy produced by Sasanian Empire-era (224–651 CE) collation and recension. That master copy, now lost, is known as the 'Sassanian archetype'. The oldest surviving manuscript ("K1") of an Avestan language text is dated 1323 CE. Summaries of the various Avesta texts found in the 9th/10th century texts of Zoroastrian tradition suggest that a significant portion of the literature in the Avestan language has been lost. Only about one-quarter of the Avestan
Book of Mormon function as a sign—as tangible evidence that Joseph Smith was a true prophet of God—that mission could have been accomplished much more concisely." Book of Mormon The Book of Mormon is a sacred text of the Latter Day Saint movement, which adherents believe contains writings of ancient prophets who lived on the American continent from approximately 2200 BC to AD 421. It was first published in March 1830 by Joseph Smith as "The Book of Mormon: An Account Written by the Hand of Mormon upon Plates Taken from the Plates of Nephi". According to Smith's account and the book's narrative,