Sogdian alphabet

…sacred (pre-Islamic) Persian literature; (2) Sogdian, a script and language that constituted the lingua franca of Central Asia in the second half of the 1st millennium ce; (3) Kök Turki, a script used from the 6th to the 8th century ce by Turkish tribes living in the southern part of…

The Sogdian script used by the Uyghurs was adopted by the Mongols, who in turn passed it on to the Manchus. Side by side with the Cyrillic alphabet, it is still in use in Mongolia.