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
Late Latin Augustan, post-Augustan and post-classic or late Latin, which indicates the term already was in professional use by English classicists in the early 19th century. Instances of English vernacular use of the term may also be found from the 18th century. The term Late Antiquity meaning post-classical and pre-medieval had currency in English well before then. Wilhelm Sigismund Teuffel's first edition (1870) of "History of Roman Literature" defined an early period, the Golden Age, the Silver Age and then goes on to define other ages first by dynasty and then by century (see under Classical Latin). In subsequent editions he subsumed