Zarathustra (Zoroaster)

Zarathustra, known in Greek as Zoroaster, is the central prophetic figure in Zoroastrian self-understanding and is credited by adherents with composing the Gathas, the oldest hymnic strata of the Avesta. In religious tradition he is the recipient of the revelation of Ahura Mazda and the moral principles that will organize the world's order (Asha) against falsehood (Druj). The Gathas, preserved in the Avesta, are attributed to Zarathustra and are composed in an archaic Avestan dialect whose linguistic features mark them as an older layer within the corpus. Adherents regard these hymns as divinely inspired utterances that form the heart of Zoroastrian instruction.

Historical and philological scholarship treats Zarathustra as a historical person whose dating is contested. Linguistic comparison places Gathic Avestan at a relatively early stage of the Indo-Iranian languages, but historians disagree about exact chronology. Scholarly estimates have ranged widely — from a putative second millennium BCE to later centuries — depending on methods and interpretive frameworks. The absence of contemporary external documentary evidence leaves room for debate, and thus Zarathustra's life is often reconstructed cautiously by historians, with a focus on his attributed hymns rather than on a detailed biography.

In tradition, Zarathustra's mission included public proclamation and engagement with rulers and communities; the narrative of a royal patron (often named Vishtaspa) who protects the prophet and supports the new teaching is widespread in Parsi and Iranian hagiography. The Gathas themselves emphasize ethical choice, correct speech, and social responsibility rather than dense philosophical abstractions, and they present a prophetic voice concerned with the moral improvement of society. The image of Zarathustra as a teacher contrasts with later institutional configurations in which priestly classes systematized liturgy and law.

Zarathustra's significance is both religious and cultural. For Zoroastrians, he is the paradigmatic exemplar of prophetic revelation and the origin point for theology, ritual, and ethical norms. For scholars, the Gathas offer a primary textual window into early Iranian religiosity and the development of concepts — such as a supreme deity, ethical dualism, and ritual language — that would be elaborated in later centuries. The interpretive tension between the ethical tenor of the Gathas and the cosmological elaborations of later texts is a major theme in Zoroastrian studies, and Zarathustra's attributed hymns continue to be a focal point for both devotion and scholarship.