Nowrooz is the most important holiday in Persian culture, and it marks the beginning of the new year. This ancient holiday has been celebrated for over 3,000 years and is deeply rooted in Persian history and tradition. Nowrooz is celebrated on the spring equinox, which falls on March 20th or 21st, depending on the year. In 2023, Nowrooz falls on March 20th, and Persians around the world are preparing to welcome the new year with open arms.