Society of the Mongol Empire bill punishable by death. To avoid devaluation, the penalty for forging or counterfeiting was also death. Members of the Golden Kin (or Golden Family - "Altan urag") were entitled to a share (khubi - хувь) of the benefits of each part of the Mongol Empire just as each Mongol noble and their family, as well as each warrior, was entitled to an appropriate measure of all the goods seized in war. In 1206, Genghis Khan gave large lands with people as share to his family and loyal companions, of whom most were people of common origin. Shares of booty were
Mongol conquest of the Song dynasty expelled his opponents like Wen Tianxiang and Li Fu. Because the financial revenue of the late Southern Song state was very low, Jia Sidao tried to reform the regulations for the merchandise of lands with his state field law. Gunpowder weapons like the "t'u huo ch'iang" were deployed by the Chinese against the Mongol forces, which fired bullets from bamboo tubes. After Kublai was elected Great Khan of the Mongols in 1260 he was eventually able to conquer the Song to the south, but at great cost. From 1260 to 1264, he faced civil insurrection within the Mongol side led