Info on OrexCA.com:
Navruz (also called Noruz, Nowruz, Nowrooz, and Nawruz), the spring "New Year" holiday, has been celebrated for at least 2,500 years, and perhaps for as long as 5,000 years. Originating in Persia and long associated with the ancient Zoroastrian religion, its name means "new day" in Farsi because for ancient Persians it marked the first day of the New Year. On this day, Persian kings would have worn a crown with images of the annual solar cycle on their heads, participated in the divine mass in the Temple of Fire, and distributed generous gifts to citizens.