The Persian peoples primarily refer to the ethnic group native to Iran, historically known as Persia. They share a common language, Persian (or Farsi), and a rich cultural heritage that includes literature, art, and traditions dating back thousands of years. The Persian Empire, one of the largest empires in history, significantly influenced the development of civilization in the region. Today, Persian peoples are found mainly in Iran, but also in neighboring countries like Afghanistan and Tajikistan. They celebrate various cultural festivals, such as Nowruz, the Persian New Year, which marks the arrival of spring. The Persian identity is characterized by a blend of ancient customs and modern influences.