Kublai Khan Tangut woman as her son's nurse, whom Kublai later honored highly. On his way home after the Mongol conquest of Khwarezmia, Genghis Khan performed a ceremony on his grandsons Möngke and Kublai after their first hunt in 1224 near the Ili River. Kublai was nine years old and with his eldest brother killed a rabbit and an antelope. After his grandfather smeared fat from killed animals onto Kublai's middle finger in accordance with a Mongol tradition, he said "The words of this boy Kublai are full of wisdom, heed them well - heed them all of you." The elderly Khagan
Society of the Mongol Empire when the Song dynasty started replacing their copper coinage with paper currency. When the Mongols invaded Song China they started issuing their own Mongolian bills in 1227. This first attempt by the Mongols did not last long because the notes issued expired after several years and were inconsistent throughout the parts of the Mongol Empire that issued them. In 1260, Kublai Khan created the Yuan Mongol's first unified paper currency with notes that did not have any expiration date. To validate the currency, it was made fully exchangeable to silver and gold and was accepted as tax payments. Currency distribution