Edward IV 1467 Irish double groat, sun & roses coinage, Dublin mint

Edward IV issues Irish coins of a lower standard (1467)

Introduction: Realising that having an Irish currency equal to English standard weights resulted in a massive drain of silver out of Ireland and, consequently, reducing the amount of coinage in circulation + causing a recession, Edward IV moved towards remedying this by announcing a new (lower intrinsic value) coinage for Ireland in 1467: double-groats (eight…

Edward IV issues Irish coins of the English standard (1463)

Introduction: Edward IV was the King of England from 4 March 1461 until 3 October 1470, and again from 11 April 1471 until his death in 1483. He was the first Yorkist King of England and most of the Irish Norman families (most notably, the Fitzgeralds of Desmond and Kildare) seem to have supported him, despite the Lancastrian…

Isaac Newton in a 1702 portrait by Godfrey Kneller

Sir Isaac Newton, Master of the Royal Mint (1699-1727)

Introduction: Sir Isaac Newton is, perhaps, best known as an English physicist and mathematician who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution.   His book “Mathematical Principles of Natural Philosophy”, first published in 1687, laid the foundations for classical mechanics Newton made…