The Yuan Shi, the official history of the Yuan Dynasty of China, records the fate of Georgia in 1252. In that year, the Mongol khagan Möngke, who was expanding into China, granted the Kingdom of Georgia, which had submitted to Mongol overlordship, to Berke. Chu'ü-erh-chih (; ), the Chinese name used for Georgia in the Yuan Shi, is etymologically the same as "Georgia".Thomas T. Allsen, Culture and Conquest in Mongol Eurasia (Cambridge University Press, 2001), p. 54. Toqto'a, History of Yuan, scroll 3. "海都於海押立地，別兒哥於曲兒只地，脫脫於葉密立地"
