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.
Pluricentric language
The Persian language has three standardized varieties with official status in Iran, Afghanistan (officially named Dari) and Tajikistan (officially named Tajik). The standard dialect of Iran is based on Tehrani dialect, the standard dialect of Dari based on Kabuli dialect, and the standard dialect of Tajik based on Dushanbe dialect. Iranian Persian and Afghan Persian equally utilize the Perso-Arabic script in writing. Tajik Persian as used in Tajikistan utilizes a modified form of the Cyrillic alphabet, although attempts at re-introducing Perso-Arabic script are being made.