Society of the Mongol Empire cook and sew for their husband, their children, and their elders. A wife's devotion to her husband continued after his death. Remarriages during the Mongol Empire did not occur often. Instead, her youngest son or her youngest brother took care of her. However Genghis Khan had allowed remarriage of widows including the levirate. Mongol women enjoyed more freedoms than those in their foreign vassal countries. They refused to adopt the Chinese practice of footbinding and wear chadors or burqas. The Mongolian women were allowed to move about more freely in public. Toward the end of the Mongol Empire, however, the
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