Literature in Iran
Persian is Iran's official language and the language of the country's ethnic majority (i.e., the Persians), and Persian literature has been the country's most influential literary tradition. Apart from Iran, Persian literature was used and developed further through several medieval Persianate societies in Asia Minor, Central Asia, and South Asia, and the language is still used widely in Central Asia (Tajikistan and Uzbekistan) and Afghanistan.
Persian language
Modern Iranian Persian and Afghan Persian are written using a modified variant of the Arabic alphabet, which uses different pronunciation and additional letters not found in Arabic. After the Muslim conquest of Persia, it took approximately 150 years before Persians adopted the Arabic script in place of the older alphabet. Previously, two different scripts were used, Pahlavi, used for Middle Persian, and the Avestan alphabet (in Persian, Dīndapirak or Din Dabire—literally: religion script), used for religious purposes, primarily for the Avestan but sometimes for Middle Persian.