[1] The text is said to have been a history of mankind from the beginning down to the revelation of Zarathustra, and it was an important source for later works like the Šāhnāmeh of Ferdowsi.
[2] The Čihrdād nask itself is lost but its structure and content can be reconstructed from references found in later Zoroastrian writings.
[7] Its grouping with the other legal nasks may have been due to a misinterpretation of the second element of its name as dād (law), whereas a derivation from *čiθrō.dāti (the establishment of the origins) is considered more likely.
[1] The Čihrdād Nask is said to have contained a comprehensive account of the legendary history according to Zoroastrianism.
[10] In addition, the nask may have contained interpretations that used the mythical history to explain and justify the social order of the Sasanian empire.