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Zoroastrianism, or Mazdayasna, is one of the world's oldest religions that remains active. It is a monotheistic faith, centered in a dualistic cosmology of good and evil and an eschatology predicting the ultimate destruction of evil. According to the teachings of Zoroaster, the universe is in a struggle between good and evil. The forces of good are led by Ahura Mazda, the wise Lord, and the forces of evil are led by Angra Mainyu, the destructive principle.
The official religion of the Persian empire was Zoroastrianism, whose main belief is the universe is in a struggle between good and evil.
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