Metrication in the United Kingdom that reported in 1818, and again in Parliament by Sir John Wrottesley in 1824. Another Royal Commission was set up 1838 by Chancellor of the Exchequer Thomas Spring Rice and it reported in 1841 that decimal coinage was required first. A third commission in 1853 advocated decimal coinage in the form £1 : 10 florins : 100 cents: 1000 mils. The first florins (one tenth of a pound sterling) were struck in 1849 as silver coins weighing and having a diameter of . An early supporter of the "Decimal Association" was the mathematician Augustus de Morgan whose articles supporting the
Irish pound in the United Kingdom. From 1938, the means of tender was referred to as the "Irish Pound", after the Constitution of Ireland changed the state's name. The Currency Act, 1927, Adaptation Order, 1938 was the actual mechanism by which change took place. The "Report of the Metric System and Decimal Coinage Committee" (1959) was amongst the first formal reports on decimalisation of the currency, discussion continued into the 1960s on the topic. When the British government decided to decimalise its currency, the Irish government followed suit. The legislative basis for decimalisation in the Republic was the Decimal Currency Act, 1969.