Zoroastrianism: Definition, Beliefs & History

Lesson Transcript
Instructor: Jessica Elam Miller

Jessica has taught college History and has a Master of Arts in History

Major religions, like Christianity and Islam, have been popular since ancient times, but what religion was popular before these belief systems developed? This lesson explores the beliefs of Zoroastrians, one of the earliest forms of organized religion.

Zoroastrianism: Definition, Beliefs and History

Have you ever wondered when popular religions started to develop? In ancient times, the modern country of Iran was known as Persia. The Persian Empire stretched over much land from the Aegean Sea to the Aral Sea and to the south past Jerusalem. Although Islam is currently the most prominent religion of this region, its predecessor, Zoroastrianism, became the foundation for the organization of major religions, including Islam, Christianity and Judaism.

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  • 0:07 Overview of Zoroastrianism
  • 0:33 Who was Zoroaster?
  • 1:28 Zoroastrian Beliefs
  • 2:58 Later Influence
  • 4:20 Zoroastrianism Today
  • 4:45 Lesson Summary
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Who Was Zoroaster

So who was Zoroaster? Zarathustra, better known as Zoroaster (the Greek version of his name), was a prophet from Persia. He believed that he had visions of a god whom he called Ahura Mazda.

Ahura Mazda, according to the prophet, was the creator of all things good. He was the true god who should be worshiped. The worship of one god is called monotheism. Zoroaster's monotheistic tendencies were a new movement from the polytheistic religion previously known in Persia. Zoroastrianism is also dualistic, meaning it focuses on a twofold nature of the world (good and evil or heaven and hell, for example). Zoroaster believed that the universe was constantly under the conflict between good and evil.

Zoroaster probably lived around the sixth century BCE, after which his teachings were followed by the majority of the Persian Empire. Its popularity died out after 637 CE, when Persia was invaded by the Muslims.

Zoroastrian Beliefs

Now that you know about Zoroaster, we can learn a little more about his beliefs. In Zoroaster's vision, he went to heaven and spoke to Ahura Mazda. Ahura Mazda explained that he had a rival named Angra Mainyu, who was an evil being.

This is a good example of the religion's dualistic belief pattern. Zoroaster was told to encourage humanity to choose between good and evil, between Ahura Mazda and Angra Mainyu. Although Zoroastrianism isn't completely monotheistic because it recognizes more than one god, it does attempt to consolidate the worship of people under one most powerful god.

Zoroaster taught that each person had the freedom to choose good or evil in the choices he or she makes. For example, choosing to tell the truth rather than to tell a lie indicates a person has chosen good over evil. The prophet also taught that there was an eternal afterlife, and the choices made by each person determined his or her destiny in this afterlife. If a person's good choices and deeds outweighed the bad, he or she would go to heaven. If a person made more bad decisions or did evil deeds, that person would go to one of the several levels of hell, depending on his or her degree of evilness.

Also within his religion, Zoroaster taught the existence of angels, demons and saviors, ideas that can also be found in Christianity, Judaism and Islam. Zoroastrians use the Avesta as their sacred text. The Avesta contains hymns, rituals and spells against demons.

Later Influence of Zoroastrianism

Zoroastrianism was so popular it influenced a lot of other religions. In the second and third centuries CE, the cult of Mithras became a popular religion among Romans, especially Roman soldiers.

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