Penny Napoleonic Wars prompted the use of base metals in 1797. Despite the decimalization of currencies in the United States and, later, throughout the British Commonwealth, the name remains in informal use. No penny is currently formally subdivided, although farthings (¼ d.), halfpennies, and half cents have previously been minted and the mill (1/10¢) remains in use as a unit of account in some contexts. "Penny" is first attested in a 1394 Scots text, a variant of Old English ', a development of numerous variations including ', ', and '. The etymology of the term "penny" is uncertain, although cognates are
Penny in 1816), among them being the shilling, six-pence of silver, the penny, half-penny, and quarter-penny in copper, were introduced to the Cape. Later two-shilling, four-penny, and three-penny coins were added to the coinage. The size and denomination of the 1816 British coins, with the exception of the four-penny coins, were used in South Africa until 1960. Handling and counting penny coins entail transaction costs that may be higher than a penny. It has been claimed that, for micropayments, the mental arithmetic costs more than the penny. Changes in the price of metal commodity, combined with the continual debasement of paper