Irish pound The number of pence in the Irish pound was redefined from 240 to 100, with the penny symbol changing from "d" to "p". The pound itself was not revalued by this act and therefore pound banknotes were unaffected, although the 10 shilling note was replaced by the 50p coin. The new 5 pence coin correlated with the old 1 shilling coin, and the new 10 pence coin correlated with the old 2 shilling coin. New coins were issued of the same dimensions and materials as the corresponding new British coins. The Decimal Currency Act, 1970 made additional provisions for 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