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
Decimal Day officially authorized the United States as the first English-speaking nation to have decimalised currency, although Tsar Peter the Great used the concept for the Russian ruble close to a century earlier, in 1704, while China has used such a decimal system for at least 2000 years. The United Kingdom's Parliament rejected Sir John Wrottesley's proposals to decimalise sterling in 1824, which was prompted by the introduction in 1795 of the decimal French franc. After this defeat, little practical progress towards decimalisation was made for over a century, with the exception of the two-shilling silver florin (worth of a pound) first