The Full Story
That pound in your pocket has been in continuous use longer than any other currency still circulating today. It was here during two world wars. It was here during the English Civil War. A king tried to debase it: Henry VIII mixed cheap metal into the silver, and it did not die. The Normans conquered this island in 1066 and kept the pound. Vikings raided these shores for two hundred years. The pound was already here.
Its roots reach back before England existed as a single country. King Offa of Mercia, who reigned from 757 to 796, standardised the silver penny in the 780s, around the year 785. 240 of those pennies weighed about one pound of silver. A pound. By weight. That is where the name comes from.
More than twelve hundred years later it is still in your pocket. The coins have changed shape. The metal has changed content. The name, the unit and the accounting system endured for centuries. Pre-decimal Britain still counted in pounds, shillings and pence until 1971, a line straight back to an Anglo-Saxon king.
Why This Matters
The pound is widely described as the oldest currency still in use, in the sense that it has been in continuous use longer than any other still circulating. It has survived the end of empires, the collapse of the gold standard, and two world wars. Its survival is also a quiet argument for institutional continuity, that useful conventions, once set, can outlast almost everything around them. Offa did not set out to create a unit that would last over twelve hundred years. He solved a practical problem, and it endured.