Arash Zeini

Zoroastrianism is the oldest of the revealed religions, and was the state religion of three great Iranian empires, hence covering a timespan of nearly one millennium. It flourished in the Near and Middle East from the sixth century B.C. to the seventh century A.C. It has probably had more influence on mankind than any other single faith.

Source: Boyce, Mary (2001). Zoroastrians, their religious beliefs and practices. London: Routledge