Traditional Mongolian Script

In 1208 Chinggis Khan defeated the Naiman, and captured their Uyghur scribe Tatar-Tonga, who apparently adapted the Old Uyghur alphabet to write Mongolian. The alphabet created by Tatar-Tonga is now known as the Uighur/Uyghur Script, the Classical Mongol Script, the Old Script, or Mongol Bichig in Mongolian. Between the 13th and 15th Centuries, Mongolian was also written with Chinese