Tradition: Zoroastrianism
Link: http://www.hds.harvard.edu/life-at-hds/religious-and-spiritual-life/multifaith-calendar/about-the-multifaith-calendar
The seventh greatest festival, “New Day” is the first day of the Zoroastrian/Persian and Baha’i New Year. It falls on the spring equinox and symbolizes the renewal of the world after the winter. For Zoroastrians, Naw Ruz also celebrates the creation of fire that is symbolic of Asha, or righteousness. It is also the day on which Zarathustra received his revelation.