Zoroaster Zoroaster Zoroaster (, ; "Zōroastrēs"), (Persian: زرتشت pronounced as Zartusht) also known as Zarathustra (, ; "Zaraθuštra"), Zarathushtra Spitama, or Ashu Zarathushtra, was an ancient Persian prophet, spiritual leader and ethical philosopher who taught a spiritual philosophy of self-realization and realization of the Divine. His teachings challenged the existing traditions of the Indo-Iranian religion and later developed into the religion of Mazdayasna or Zoroastrianism. He inaugurated a movement that eventually became the dominant religion in Ancient Persia. He was a native speaker of Old Avestan and lived in the eastern part of the Iranian Plateau, but his exact birthplace is
Zoroaster present-day Turkmenistan. Sarianidi considered the Bactria–Margiana Archaeological Complex region as "the native land of the Zoroastrians and, probably, of Zoroaster himself." Boyce includes the steppes to the west from the Volga. The medieval "from Media" hypothesis is no longer taken seriously, and Zaehner has even suggested that this was a Magi-mediated issue to garner legitimacy, but this has been likewise rejected by Gershevitch and others. The 2005 "Encyclopedia Iranica" article on the history of Zoroastrianism summarizes the issue with "while there is general agreement that he did not live in western Iran, attempts to locate him in specific regions of