The Irish five pence was introduced on Decimal Day, February 15, 1971 and reused the design on the shilling coin produced for the Irish Free State in 1928. Some shilling coins remained in circulation until the early 1990s, with the same nominal value as the five pence coin. The British decimal Five Pence (5p) coin was issued in 1968 in preparation for the forthcoming decimalisation of the coinage. ... On February 15, 1971, variously known as Decimal Day, Decimalisation Day and D-Day, the United Kingdom and Ireland decimalised their historical currencies. ... February 15 is the 46th day of the year in the Gregorian Calendar. ... 1971 is a common year starting on Friday (click for link to calendar). ... The Irish Free State (Irish: Saorstát Éireann) was (1922–1937) the name of the state comprising the 26 of Irelands 32 counties which were separated from the United Kingdom of Great Britain and Ireland under the Irish Free State Agreement (or Anglo-Irish Treaty) signed by British and Irish... 1928 was a leap year starting on Sunday (link will take you to calendar). ... Events and trends Technology Explosive growth of the Internet; decrease in the cost of computers and other technology Reduction in size and cost of mobile phones leads to a massive surge in their popularity Year 2000 problem (commonly known as Y2K) Microsoft Windows operating system becomes virtually ubiquitous on IBM...

The five pence, introduced in 1971, was 5.65518 grams in weight with a diameter of 2.3595 centimetres. This matched the British five pence coin. As a modern coin it became apparent in the late 1980s that the coin's physical dimensions were large relative to its value. Thus the original five pence was last minted in 1990 and in 1992 a replacement was struck at 1.85 centimeters diameter (differing from the corresponding new British five pence coin). This new coin kept the old design but incorporated some changes, notably the location of the figure and reversing the main design of the bull. The composition of the five pence was 75% copper and 25% nickel. The British decimal Five Pence (5p) coin was issued in 1968 in preparation for the forthcoming decimalisation of the coinage. ... Events and trends The 1980s marked an abrupt shift towards more conservative lifestyles after the momentous cultural revolutions which took place in the 1960s and 1970s and the definition of the AIDS virus in 1981. ...

The coin was 1/20 of an Irish Pound and was finally withdrawn on the advent of the euro. The euro (€; ISO 4217 code EUR) is the currency of twelve European Union member states: Austria, Belgium, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal, and Spain. ...