Nowrūz meaning 'New Day is the traditional ancient Iranian festival and also the start day of Iranian "New Year".
Nowruz is celebrated and observed by Iranian people and the related coltural continent and has spread in many other parts of the world, including parts of Central Asia, South Asia, Northwestern China, the Crimea.
Nowruz is the most important holiday in Iran. Preparations for Nowruz begin in the month Esfand (or Espand), the last month of winter in the Persian Solar Calendar
Spelling variations in English
A variety of spelling variations for the word "nowruz" exist in English-language usage. Random House (unabridged) provides the spelling "nowruz". recognizes only the spelling "nauruz" (and a contestant in the final session of the 2006 , Allion Salvador, in the United States was disqualified on that basis.. In the USA, many respected figures in the field of language such as Dr. Yarshater at Columbia University have suggested to use Nowruz