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.
Iraq
Prior to the invasion in 2003, Arabic was the sole official language. Since the new Constitution of Iraq approved in June 2004, both Arabic and Kurdish are official languages, while Assyrian Neo-Aramaic and the Turkmen/Turkoman dialect of Turkish (referred to as respectively "Syriac" and "Turkmen" in the constitution) are recognised regional languages. In addition, any region or province may declare other languages official if a majority of the population approves in a general referendum.