The source problem
Here is the central difficulty of reading Persia: almost every continuous narrative we have of the Achaemenid empire was written by Greeks — Herodotus, Xenophon, Ctesias and their successors — and the Greeks were the one people Persia tried hardest and most famously failed to conquer. The Persian sources, by contrast, are royal inscriptions and administrative tablets: invaluable, but neither narrative nor disinterested. The platform reads the whole Persian layer through this problem, because getting Persia right means using the Greek sources without adopting the Greek frame.
Three Greek lenses
The three principal Greek sources distort in three different ways, and the discipline is to know which is which. Herodotus's Histories is the indispensable narrative — genuinely curious about Persia, often admiring, preserving the satrapal system, the tribute lists and the royal road that no other source gives us — but structured throughout around the opposition of Greek freedom and Persian despotism, an interpretive frame that is a Greek artefact, not a Persian fact. Xenophon's Cyropaedia is not history at all but a Greek philosophical idealisation that uses a Persian king to argue a Greek case about leadership. And Ctesias's Persica is the cautionary extreme — an insider at the Persian court whose account is nonetheless so sensational and unreliable that even ancient readers distrusted it. Useful, idealised, and untrustworthy: three lenses, each requiring its own correction.
Where the Greeks are useful
The platform does not dismiss the Greek sources — it could not; without them the empire would be nearly mute. Herodotus preserves an enormous amount of accurate administrative and ethnographic detail that the Achaemenid record confirms: the organisation of the satrapies, the working of the imperial post, the constitutional debate among the Persian conspirators (whatever its historicity, a real engagement with the question of regime types). Where the Greek sources report institutions and practices, and especially where they can be checked against Behistun or the Persepolis tablets, they are often strikingly reliable. The platform reads them as the essential scaffolding of Persian history.
Where the Greeks distort
The distortion is in the frame, not usually the facts. The Greek sources cast the Persian monarchy as "despotism" — the rule of a master over slaves — against which Greek citizen self-government defined itself. This opposition, dramatised in Aeschylus's Persians and structured into Herodotus, became the foundation of the entire Western category of "Oriental despotism," a category that has done immense ideological work for two and a half millennia and that tells us more about Greek (and later European) self-definition than about how the Achaemenid empire actually governed. The platform reads this under historical method: the facts can be trusted more than the framing, and the framing must be read as itself a historical artefact of the people who produced it.
The discipline
The discipline, then, is double vision: to use the Greek narrative for what it preserves while constantly translating its interpretive frame back into the Greek concerns that generated it. When Herodotus reports the tribute of a satrapy, believe him; when he tells you the Persians were slaves to a despot, ask what the free Greek needed that contrast for. The platform reads Xerxes and Cyrus through exactly this method.
Why the platform reads it
The platform reads Persia through Greek eyes because the source problem is not a technicality but the precondition of treating Persia as a civilization in its own right rather than as the Greeks' foil. Balancing the record — the explicit goal of the Persian layer — means neither discarding the Greek sources nor swallowing their frame, but reading them as what they are: the indispensable, partial, interested testimony of the adversary. It is the same discipline the platform applies to Tacitus on the emperors and to every source that records a world it was not neutral about.