One of the main reforms of Genghis Khan was the creation of Mongol Script. This script was based on the Uigur script and was made the official script of the State. In 1204, after defeating Naiman aimag and capturing its minister and scholar Tatatunga, Genghis asked him to teach his sons to write Mongol words in Uigur script.

This was the beginning of the Mongol script. The Uigur script’s similarity with Mongol dialect helped influence on the creation of an original script for classical Mongol language. With the development of the script, Mongolians could take much better records and managed their affairs more easily. The development of Mongol script was one of the biggest changes that occurred in the cultural life of Mongols.