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.
List of countries where Arabic is an official language
The local dialects of Arabic spoken by Arab minorities in Iran (like Ahwazi Arabs, Khamseh Arabs, Marsh Arabs as well as Arabs in Khorasan) are Khuzestani Arabic and Mesopotamian Arabic, (also known as Iraqi Arabic) mainly in Khuzestan Province as well as Khorasani Arabic especially in Khorasan Province.