OiratsOirats (Ойрад, Oirad, ɔiˈrɑt) or Oirds (Ойрд, Oird; Өөрд; 瓦剌), also formerly Eluts and Eleuths (厄魯特, Èlǔtè), are the westernmost group of the Mongols whose ancestral home is in the Altai region of Siberia, Xinjiang and western Mongolia. Historically, the Oirats were composed of four major tribes: Dzungar (Choros or Olots), Torghut, Dörbet and Khoshut. The minor tribes include: Khoid, Bayads, Myangad, Zakhchin, Baatud. The modern Kalmyks of Kalmykia on the Caspian Sea in southeastern Europe are Oirats.
Mongolian languageMongolian is the official language of Mongolia and both the most widely spoken and best-known member of the Mongolic language family. The number of speakers across all its dialects may be 5.2 million, including the vast majority of the residents of Mongolia and many of the ethnic Mongol residents of the Inner Mongolia Autonomous Region of the People's Republic of China. In Mongolia, Khalkha Mongolian is predominant, and is currently written in both Cyrillic and the traditional Mongolian script.