Currency timeline

757-796 Offa, King of Mercia, was considered the greatest Anglo-Saxon ruler in the eighth century. He was responsible for establishing a new currency based on the silver penny which, with many changes of design, was the standard coin of England for many centuries
1060 A coin was minted in England shaped like a clover. The user could break off any of the four leaves and use them as separate pieces of currency
1694 The Bank of England was founded in 1694 by a Scotsman, William Paterson, and the Bank of Scotland in 1695 by an Englishman, John Holland
1789 In Britain, the law indicating the method of execution changed to hanging. Prior to that, burning was the modus operandi. The last female to be executed by burning in England was Christian Bowman. Her crime was making counterfeit coins
1793 The fiver is the longest running denomination of Bank of England note: it was first issued in 1793
1813 Since 1813, the guinea hasn't existed as an actual unit of currency. Guineas were originally minted of gold imported from the Guinea Coast of West Africa, hence their name. The coin was first issued in 1663, when the British crown authorized the Royal Mint to manufacture 20-shilling gold pieces "in the name and for the use of the Company of Royal Adventurers with Africa." Forty-four of the coins were the equivalent of one pound of gold
1853 The Bank of England notes were not wholly printed until 1853. Until that year they were still signed by one of the Bank's cashiers
1870 The facsimile signature of the Chief Cashier appeared on Bank of England notes for the first time
1908 Kenneth Grahame published the children's classic book "The wind in the Willows". He was the Secretary of the Bank of England between 1898 - 1908, so it is possible that some of the characters in the book were based on those people he knew and worked with
1940 The metallic thread was first introduced into Bank of England notes
1943 The highest value bank note issued by the Bank of England (£1000 denomination) was issued for the last time
1960 The monarch's portrait appeared on Bank of England notes for the first time
March 1995 A check for 2,474,655,000 English pounds was issued by Glaxo plc for Wellcome Trust Ltd. As the printers could not print such a figure, it was typed by an employee. She was so nervous, she had to type it 3 times!
Farthing In England, a quarter penny was originally known as a fourthing when coins were cut into pieces to make change. "Farthing" is a corruption of the word fourthing
Dandiprat Dandiprat was an English coin of the value of three halfpence, coined by Henry VII
Gresham's Law The milled edges still found on many coins were originally designed to show that none of the valuable metal had been shaved off the coin. Prior to the use of milled edges, circulating coins suffered from "shaving," a common problem where unscrupulous persons would shave a small amount of precious metal from the edge of a circulating coin. This form of debasement in Tudor England led to the formulation of Gresham's Law. The monarch would have to periodically recall, paying only bullion value of the silver, and re-mint circulating coins