Currency money or book money, which are fiat money. Currency money Currency money is money in full circulation that takes its value from the precious metal it contains, that is, its market value is (almost) the value of the metal it contains (apart from the Seigniorage or the minters' profit), though this is always overcompensated for in coins and banknotes from a country undergoing debasement. Currency money is usually made of silver or gold, but in very rare cases plated metal and even copper may be used. Currency money is commodity money, as opposed to coins whose metal value is less than
Chao (currency) Chao (currency) The chao () was the official banknote of the Yuan dynasty in China. Unlike the earlier paper money such as jiaozi, it was the first paper currency to be used as the predominant circulating medium in the history of China. The primary press was the Imperial Mint established in 1260, probably in Yanjing. It was certainly located in Khanbaliq after that city was established the same decade. Regional capitals were sometimes authorized to print money as well. The money of the various eras of the Yuan were also separately known, as the Zhongtong notes and Zhiyuan notes of