Dari

Dari (/ˈdɑːri, ˈdæ-/; endonym: دری [d̪ɐˈɾiː]), also known as Dari Persian (: فارسی دری, Fārsī-yi Darī, [fʌːɾˈsiːjɪ d̪ɐˈɾiː] or Fārsī-ye Darī, [fʌːɾˈsiːjɛ d̪ɐˈɾiː]), is the variety of the Persian language spoken in Afghanistan. Dari is the term officially recognised and promoted since 1964 by the Afghan government for the Persian language; it is known as Afghan Persian or Eastern Persian in many Western sources. The decision behind renaming the local variety of Persian was more political than linguistic to support an Afghan state narrative. Apart from a few basics of vocabulary, there is little difference between formal written Persian of Afghanistan and Iran; the languages are mutually intelligible. The term "Dari" is officially used for the characteristic spoken Persian of Afghanistan, but is best restricted to formal spoken registers. Afghanistan's Persian-speaking population still prefer to call their language "Farsi", asserting that the term "Dari" has been imposed upon them by the dominant Pashtun ethnic group as an effort to detach Afghanistan from its deep-rooted cultural, linguistic, and historical connections with the wider Persian-speaking world, encompassing Iran, Tajikistan, and parts of Uzbekistan. Dari is the official language for 35 million Afghans in Afghanistan and it serves as the lingua franca for interethnic communications in Afghanistan.

As defined in the 2004 Constitution of Afghanistan, Dari (Farsi) is one of the two official languages of Afghanistan; the other is Pashto. Dari is the most widely spoken language in Afghanistan and the native language of approximately 25–55% of the population. Dari serves as the lingua franca of the country and is understood by up to 78% of the population.

Dari served as the preferred literary and administrative language among non-native speakers, such as the Pashtuns and Mughals, for centuries before the rise of modern nationalism. Also, like Iranian Persian and Tajiki Persian, Dari Persian is a continuation of Middle Persian, the official religious and literary language of the Sassanian Empire (224–651 AD), itself a continuation of Old Persian, the language of the Achaemenids (550–330 BC). In historical usage, Dari refers to the Middle Persian court language of the Sassanids.