Zarathushtra, also known as Zoroaster, was an ancient Iranian prophet and religious reformer, regarded as the founder of Zoroastrianism, the world’s oldest known monotheistic faith. Zarathushtra was born around the 2nd millennium BCE in eastern Iran (conservative estimates place his birth around c. 1000 BCE). Born into a family of priestly or noble status, Zarathushtra was educated from a young age and became a pries