NOWRUZ is the name of the IranianNew Year which is celebrated worldwide by the Iranians, along with some other ethnolinguistic groups, as the beginning of the New Year. 

Nowruz has been celebrated by people from diverse ethno-linguistic communities. It has been celebrated for over 3,000 years in Western Asia, Central Asia, the Caucasus, the Black Sea Basin, and the Balkans. It is a secular holiday for most célébrants that is enjoyed by people of several different faiths, but remains a holy day for Zoroastrians.