Old Uyghur

The Old Uyghur alphabet was used to write the Old Uyghur language, a Turkic language spoken in parts of what is now Xinjiang, China. The alphabet is derived from the Sogdian alphabet, which in turn was derived from the Aramaic alphabet. It was used from the 8th to 13th centuries, and was replaced by the Arabic script when the Uyghurs converted to Islam. The Old Uyghur alphabet was written in a particular way known as the "soyombo" style. This style was used for a number of other Turkic languages as well, and was also used for the Mongolian script. The Old Uyghur alphabet has a number of features that are not found in other alphabets. For example, it has a number of letters that represent sounds that are not found in the Turkish language. It also has a number of letters that are used for vowels, and a number of other letters that are used for consonants. The Old Uyghur alphabet is not used today, but it is still studied by scholars of Turkic languages.