Sadeh, Bahman 10. Sadeh is an ancient Iranian festival rooted in Zoroastrian tradition, observed each year on this date. The festival takes place fifty days before Nowruz, and its name, meaning "hundred," refers to one hundred days remaining until the beginning of spring in the old Iranian calendar. Sadeh symbolizes the triumph of light over darkness and cold, and it held significant importance among ancient Iranian communities. On this day, people gather to light a large bonfire. The fire represents warmth, light, and life, and in Zoroastrian belief, fire is considered sacred and a symbol of purity and truth. Traditionally, the ceremony included recitation of special hymns and prayers, and participants would share food and offerings, strengthening social bonds. The communal aspect of Sadeh, held outdoors, reflects unity and hope for the end of winter and the arrival of a new season. In modern times, Sadeh continues to be celebrated with grandeur among Zoroastrians in Iran, especially in cities like Yazd and Kerman. Beyond its religious significance, the festival is recognized as part of Iran’s cultural heritage and sometimes draws interest from those passionate about Iranian history and culture. Sadeh serves as a reminder of the role of fire in Iranian rituals and its enduring importance in the social and spiritual life of the people.