Originally Posted by Darth Roach
Or quite the opposite, Persian kings bragging about their exploits in the rock faces around Persepolis.
Friendly authors? I don't think it was about friendliness or unfriendliness. The quality of the Hellenic sources generally depended on where THEY were getting their information from, and their audience.
Indeed. We will likely never know about many great wars and battles in the Achaemenid era.
That's the quid of the issue.
BTW, friendliness of course significantly directly affected the precision of the reports from any Classical sources on this or any other issue.
Again, this is particularly obvious regarding Kurus the Younger & Xenophon... or Xšayāršā I & Herodotos in the opposite way, for that matter; in both cases, the deliberate cherrypicking of the reported information couldn't have been any more evident.
The surviving Persian kings bragging about their exploits in the rock faces around Persepolis are sadly to scarce; such sources were of course absolutely biased, but they could be anyway used a a comparative control for the Hellenic sources.