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. As well as being a Zoroastrian holiday and having significance amongst the Zoroastrian ancestors of modern Iranians, it is also celebrated in parts of the South Asian sub-continent as the new year. The moment the Sun crosses the celestial equator and equalizes night and day is calculated exactly every year and Iranian families gather together to observe the rituals.
The term Nowruz in writing first appeared in Persian records in the 2nd century AD, but it was also an important day during the time of the Achaemenids (c. 548–330 BC), where kings from different nations under the Persian empire used to bring gifts to the Emperor, also called King of Kings (Shahanshah), of Persia on Nowruz. The significance of Nowruz in the Achaemenid Empire was such that the great Persian king Cambyses II's appointment as the king of Babylon was legitimized only after his participation in the New Year festival (Nowruz).
The nowruz ceremony was held in Congress 60, and travelers from all the branches of Congress 60 came to visit Mr. Dezhakam the founder of Congress 60.