Nowrūz ( نوروز ) (New Day) is the name of the Iranian New year in the Persian calendar.
Nowruz marks the first day of spring and the beginning of the year in the Iranian calendar. It is celebrated on the day of the astronomical Northward equinox, which usually occurs on March 21 or the previous/following day depending on where it is observed.
Originally being a Zoroastrian festival, and the holiest of them all, Nowruz is believed to have been invented by Zoroaster himself, although there is no clear date of origin. Since the Achaemenid era the official year has begun with the New Day when the Sun leaves the zodiac of Pisces and enters the zodiacal sign of Aries, signifying the Spring Equinox.
One of Iranian tradition in Nowruz is an arrangement of seven symbolic items whose names start with the letter “S” (Seen) in the Persian alphabet. It is traditionally displayed at Nowruz, the Iranian New Year’s day, which is celebrated on the day of the vernal equinox, marking the beginning of spring on the Northern Hemisphere.
Every single item symbolizes something.
The main items are:
1. Somagh (sumac): symbolizes the color of sunrise
2. Serkeh (vinegar): symbolizes age and patience
3. Senjed (dried fruit from lotus tree): symbolizes love
4. Samanoo (sweet pudding): symbolizes affluence
5. Sabzeh (sprouts): symbolizes rebirth
6. Sib (apple): symbolizes health and beauty
7. Sir (garlic): symbolizes medicine