Pasiba was formulated by Pasiba, the national advisor of Kublai Khan in the Yuan Dynasty of China, based on the Tibetan language at that time. It was used to replace the Mongolian whose pronunciation was not accurate enough and serve as a symbol across Europe and Asia. The Mongol Empire adopted a unified writing method throughout the country. However, in the past, only the people of the Yuan Dynasty adopted it, and it was mainly used for phonetic notation of Chinese characters. After the establishment of the Ming Dynasty, the Basiba character was still used in the Northern Yuan Dynasty for a period of time, but by the end of the Ming Dynasty, everyone had been assimilated by other Mongolians abroad, re-adopted the Mongolian script, and spread it to the Manchus.