Iran's official New Year begins with Nowruz, an ancient Iranian tradition celebrated annually on the vernal equinox. It is enjoyed by people adhering to different religions, but is considered a holiday for the Zoroastrians. It was registered on the UNESCO's list of Masterpieces of the Oral and Intangible Heritage of Humanity in 2009, described as the ''Persian New Year'', shared with a number of other countries in which it has historically been celebrated.