Hi everyone,
When I’m reading about the Sassanid Empire, it is often told that they revolted against the Parthians with dreams of a new Persian empire. However, when reading the later Iranian authors of the Islamic age, they usually go from the Pishdadian and the Kiyanian (ancient kings mentioned in the Avesta) to Alexander, basically never mentioning a Median or Achaemenid dynasty. I want to know when exactly did the Iranians forget about their history? Were the Sassanids aware of figures like Cyrus, Xerxes, or Darius? Or were they also unaware of them, attributing their works to the Avestan kings instead?