Zoroastrianism started in Persia and later spread to various regions. It became prominent during the Achaemenid Empire and continued to flourish under the Sasanian Empire, expanding its reach within these areas.
Zoroastrianism also had a significant influence on several major religions. As various religions developed and spread throughout Persia and Central Asia, they incorporated concepts originally from Zoroastrianism.
The faith deeply affected Persian culture, leaving a lasting impact on the customs and traditions of the region.
In modern times, even though the number of Zoroastrians has declined, the religion still influences communities, particularly in India and Iran. The Parsis, who are descendants of Persian Zoroastrians, strive to keep their cultural identity and traditions alive. In Iran, Zoroastrianism is officially recognized, though it faces certain challenges.