Nayan (Mongol Prince) Nayan (Mongol Prince) Nayan was a prince of the Borjigin royal family of the Mongol Empire. He raised a noteworthy and serious rebellion against the Mongolian Khagan, Kublai Khan. He was a Nestorian Christian. Much of what is known of Nayan was recorded by the Venetian traveller Marco Polo. Nayan was a member of a collateral branch of the Mongol royal dynasty, being a descendant of one of the brothers of Genghis Khan. He was either a great-great grandson of Temüge, Genghis Khan's youngest full brother, or of Belgutai his half-brother. More than one prince named Nayan existed and their
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