Background
Zoroastrianism arose in the ancient Iranian world and is traditionally connected with the teacher Zarathushtra, also known by the Greek form of his name, Zoroaster. Dating his life remains difficult, and scholarly estimates vary widely.
The religion became deeply connected with several pre-Islamic Iranian empires. Its communities are much smaller today, but Zoroastrian religious life continues, especially among communities with roots in Iran and among Parsis whose ancestors settled in South Asia.
Core religious ideas
Zoroastrian teaching centers on Ahura Mazda, the Wise Lord, and presents moral life as a meaningful choice between truth and constructive order on one side and deceit and disorder on the other. The familiar ethical summary “good thoughts, good words, good deeds” expresses the importance of aligning intention, speech and action.
Accounts differ over how best to classify Zoroastrian theology. Some descriptions emphasize devotion to one supreme deity, while others focus on the tradition's strong ethical dualism. Zoroastrian communities and scholars do not always frame these questions in identical ways.
Fire and worship
Fire serves as a visible focus in Zoroastrian worship because it is associated with light, purity and truth. Zoroastrians do not generally understand this practice as worship of fire itself. Sacred fires are tended with care in fire temples, while prayer and ritual also occur in homes and community settings.
Sacred texts
The Avesta is the principal collection of Zoroastrian sacred writings. Its oldest portion includes the Gathas, hymns composed in an ancient Iranian language and traditionally associated with Zarathushtra. Later religious literature preserves commentary, law, ritual guidance and theological interpretation.
History and influence
Zoroastrianism played an important role in ancient Iranian religious and political life. Contact among Persian, Jewish, Christian and later Islamic societies created opportunities for ideas to circulate, but claims of direct borrowing require care. Scholars continue to debate the direction, timing and extent of influence concerning judgment after death, resurrection, angels, evil and the renewal of creation.
It is therefore more accurate to describe possible historical relationships than to present every similarity as proven dependence. Each tradition developed its teachings within its own texts, institutions and interpretive history. Related background reading includes the site's essays on heaven and hell and resurrection.
Community and continuity
Zoroastrian communities preserve a rich calendar, household observances, initiation traditions, prayers and communal institutions. Nowruz, the spring new year celebrated across several cultures and religions, has an important place in Zoroastrian life.
Questions of identity, conversion, intermarriage and participation are approached differently among communities. These differences matter when discussing membership and the future of the religion; no single policy represents every Zoroastrian.