Sogdian language
The Sogdian language (Sogdian: swγδyk) was an Eastern Iranian language spoken mainly in the Central Asian region of Sogdia (capital: Samarkand; other chief cities: Panjakent, Fergana, Khujand, and Bukhara), located in modern-day Uzbekistan, Tajikistan, Kazakhstan and Kyrgyzstan; it was also spoken by some Sogdian immigrant communities in ancient China. Sogdian is one of the most important Middle Iranian languages, along with Bactrian, Khotanese Saka, Middle Persian, and Parthian.