Religion in Asia a minority mostly found in India and Iran. It worships a monotheistic god, Ahura Mazda, and was founded by Zoroaster. Zoroastrianism is a religion and philosophy based on the teachings of prophet Zoroaster (also known as Zarathustra, in Avestan), probably founded some time before the 6th century BC. The term Zoroastrianism is, in general usage, essentially synonymous with Mazdaism, i.e., the worship of Ahura Mazda, exalted by Zoroaster as the supreme divine authority. In Zoroastrianism, the Creator Ahura Mazda is all good, and no evil originates from Him. Thus, in Zoroastrianism good and evil have distinct sources, with evil (druj)
Zoroaster and Darius I. Zoroastrianism eventually became the official religion of Ancient Persia and its distant subdivisions from the 6th century BCE to the 7th century CE. Zoroaster is credited with authorship of the Gathas as well as the Yasna Haptanghaiti, hymns composed in his native dialect, Old Avestan, and which comprise the core of Zoroastrian thinking. Most of his life is known from these texts. By any modern standard of historiography, no evidence can place him into a fixed period, and the historicization surrounding him may be a part of a trend from before the 10th century that historicizes legends