The Armenian language is an Indo-European language spoken by the Armenians. It is the official language of the Republic of Armenia and the self-proclaimed Nagorno-Karabakh Republic. It has historically been spoken throughout the Armenian Highlands and today is widely spoken in the Armenian diaspora. It is of interest to linguists for its distinctive phonological developments within the Indo-European family of languages.
Armenian has its own unique script, the Armenian alphabet, invented in 405–6 AD by the linguist and cleric Mesrop Mashtots.
Linguists classify Armenian as an independent branch of the Indo-European language family. Armenian shares a number of major innovations with Greek, and some linguists group these two languages together with the Indo-Iranian family into a higher-level subgroup of Indo-European, which is defined by such shared innovations as the augment.