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
Bahá'í Faith and the unity of religion consider a successor to Zoroaster, Abraham, Moses, Jesus, Muhammad, Krishna and Buddha. This acceptance of other religious founders has encouraged some to regard the Bahá'í religion as a syncretic faith. However, Bahá'ís and the Bahá'í writings explicitly reject this view. Bahá'ís consider Bahá'u'lláh's revelation an independent, though related, revelation from God. Its relationship to previous dispensations is seen as analogous to the relationship of Christianity to Judaism. They regard beliefs held in common as evidence of truth, progressively revealed by God throughout human history, and culminating in (at present) the Bahá'í revelation. Bahá'ís have their own sacred scripture, interpretations, laws