The Secret History of the Mongol Queens The Secret History of the Mongol Queens The Secret History of the Mongol Queens: How the Daughters of Genghis Khan Rescued His Empire is a 2010 book by Jack Weatherford, about the impact and legacy of Genghis Khan's daughters and Mongol queens such as Mandukhai the Wise and Khutulun. The book references Mongolian, Central Asian, Persian, European and Chinese sources such as "Altan Tobchi", "Erdeni Tobchi", "Erdenyin Tunamal Sudar", "Tarikh-i-Rashidi", "Tarikh-i Jahangushay-i Juvaini", and "Ming shi" in addition to various secondary sources in English, Mongolian, and German. Weatherford also analyzes the role of Mongol women in the Mongol Empire and
Society of the Mongol Empire to eliminate the overissue of the currency by Mongol and non-Mongol nobles since the reign of Great Khan Ögedei. His authority established united measure based on "sukhe" or silver ingot, however, the Mongols allowed their foreign subjects to mint coins in the denominations and use weight they traditionally used. During the reigns of Ögedei, Güyük and Möngke, Mongol coinage increased with gold and silver coinage in Central Asia and copper and silver coins in Caucasus, Iran and southern Russia.±±§ The Yuan dynasty under Kublai Khan issued paper money backed by silver, and again banknotes supplemented by cash and copper cash.