Greek and Roman Historians on Zoroaster: Every Ancient Citation Compiled
The Witnesses Who Cannot Be Dismissed When scholars question Zoroastrian antiquity or influence, they often ignore the most inconvenient evidence: Greek and Roman historians — writing centuries before the Sassanid compilation of the Avesta — documented Zoroastrian beliefs in detail. These writers had no theological stake in Zoroastrianism. They were outsiders describing what they observed and learned.
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The Witnesses Who Cannot Be Dismissed When scholars question Zoroastrian antiquity or influence, they often ignore the most inconvenient evidence: Greek and Roman historians — writing centuries before the Sassanid compilation of the Avesta — documented Zoroastrian beliefs in detail. These writers had no theological stake in Zoroastrianism. They were outsiders describing what they observed and learned. Their testimony proves: Zoroastrianism existed and was known to the ancient world Its core doctrines match later Zoroastrian texts It was already ancient when the Greeks encountered it Greek philosophers explicitly learned from the Magi Here is every major ancient citation, compiled. HERODOTUS (c. 484-425 BCE) The Father of History Herodotus traveled extensively through the Persian Empire and recorded what he learned.
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Primary sources detected
Avesta