A 1,700-Year-Old Coin Reveals the Story of Roman Britain
It was a small silver coin, lying quietly beneath the English countryside, and it had probably been there for more than 1,700 years. But modern times sometimes speed up the discoveries. A new railway needed to be built. Before construction of the planned East West Rail line between Oxford and Cambridge can continue, archaeologists have been examining the land along the route.
More than 1,000 trial trenches have already been investigated, revealing traces of people who lived in the area thousands of years ago. Among them was a silver Roman denarius minted around AD 287. But the name on it was interesting. It was the name of a man who had once declared himself emperor of Britain.
A Coin Hidden Beneath the Railway
The discovery was made in Bedfordshire or Cambridgeshire during the archaeological work for East West Rail. The railway project has created an enormous archaeological investigation. Around 6,000 trial trenches are expected to be completed over the next two years, giving archaeologists the chance to investigate the landscape before it is transformed by modern construction.
The finds already include a Late Iron Age jar, pottery and another Roman coin dating from the 2nd century. But this coin is different. It belongs to one of the most turbulent periods in Roman history. And unlike most Roman coins found in Britain, it was issued by a man whose authority was rejected by the government in Rome. For a few years, Carausius ruled Britain as an emperor in his own right.
The Man on the Coin
Carausius was a Roman military commander who commanded the Roman fleet operating around Britain and the English Channel. The waters around Britain were becoming increasingly dangerous during the 3rd century, with raiders threatening the coasts and maritime trade. According to the surviving Roman sources, Carausius was accused of keeping some of the wealth recovered from pirates instead of handing it over to the imperial authorities.
The emperor Maximian ordered his execution. Carausius responded by rebelling. By AD 286 or 287, he had taken control of Roman Britain and parts of northern Gaul and declared himself emperor. Suddenly, Britain had a ruler who was not recognized by Rome. And he needed money.
When Britain Minted Its Own Money
This is where the little coin becomes especially interesting. An illegal emperor needed the appearance of legitimate government. He needed administration and coins. Carausius established mints in Roman Britain and produced his own coinage, including high-quality silver and gold issues. The British Museum has a remarkable collection of coins from his reign, including examples minted in London.
They were more than money. Every coin carrying Carausius’ portrait and name carried his claim to power into the hands of ordinary people. Soldiers could be paid with them, merchants had to accept them, and the taxes could be collected with them. The emperor’s face could travel far beyond the places where his officials could. The newly discovered denarius is therefore a piece of a much larger political experiment. For a brief period, Roman Britain had its own Roman emperor.
Roman Britain Was Already a Different World
To understand why Carausius could establish himself in Roman Britain, it helps to understand what the island had become. Rome conquered Britain beginning in AD 43, but the transformation did not happen overnight. Over the following centuries, Roman roads spread across the island, and forts and walls appeared along the frontiers. Soon towns developed, and farms and villas supplied growing settlements and the military, just like in other Roman provinces.
London became an important commercial center, while York became one of the most important military bases in Britain. And in the north, Hadrian’s Wall marked one of the most famous frontiers of the Roman Empire. Britain was thousands of kilometres from Rome, but it was Roman. The island had become deeply integrated into the Roman world.
A Roman Britain: Empire Within the Empire
Carausius was not trying to create a completely new civilization. He wanted to rule as a Roman emperor. His coins used Roman imagery, and administration followed Roman traditions. His power depended heavily on Roman soldiers and Roman military infrastructure. Even his propaganda presented him as a legitimate member of the imperial system.
One of his most remarkable coin issues shows Carausius together with the legitimate emperors Diocletian and Maximian. The inscription calls them fratres — brothers. It was a message. He was suggesting that he belonged among Rome’s emperors. As historian Caillan Davenport has shown, Carausius’ coinage was carefully designed to construct an imperial image for the rebel ruler, including references to his naval power and control of the sea. For a man who had begun his career as a fleet commander, it was a clever transformation. The sailor became an emperor.
The Coin’s Journey
We will probably never know who owned the newly discovered denarius. At some point, it was lost. The coin fell into the soil and disappeared from human history. The political world around it changed. Carausius was eventually assassinated in AD 293. His successor, Allectus, continued the rebellion, but Rome eventually reconquered Britain. By around AD 296, the breakaway regime was gone. But the coin remained.
It survived the end of Carausius’ empire and the later centuries of Roman Britain. It survived the collapse of Roman authority in the early 5th century, and waited until the 21st century.
Another Coin From Another Britain
The archaeologists found another Roman coin during the same programme. It probably dates from the middle or later 2nd century, during the reign of Antoninus Pius or Marcus Aurelius. That coin is significantly older than the Carausius denarius. Together, they create a small timeline beneath the modern landscape. The first coin belonged to the Britain of the great Antonine emperors, and the second belonged to the Britain of civil wars and competing emperors. Between them were generations of Roman life. And there was evidence of an even earlier world.
Archaeologists also found a Late Iron Age jar dating to roughly 50 BC–AD 50. The people who made it lived before the Roman conquest, or during the earliest period of Roman expansion. They belonged to a Britain that looked very different. Within a few generations, their descendants would live in a landscape filled with Roman roads, buildings, coins, and military installations.
A Tiny Coin and a Lost Empire
The Roman Empire eventually disappeared from Britain. The forts were abandoned, the administration vanished, but the roads remained. Carausius’ little Roman Britain empire had disappeared more than a century earlier. His name faded from memory. But his coin survived. For nearly 1,700 years, it lay in the soil of what is now England. Then a railway project brought archaeologists to the field. A small piece of silver carrying the name of a man who had once challenged the Empire and ruled Roman Britain as his own.
Hello, my name is Vladimir, and I am a part of the Roman-empire writing team.
I am a historian, and history is an integral part of my life.
To be honest, while I was in school, I didn’t like history so how did I end up studying it? Well, for that, I have to thank history-based strategy PC games. Thank you so much, Europa Universalis IV, and thank you, Medieval Total War.
Since games made me fall in love with history, I completed bachelor studies at Filozofski Fakultet Niš, a part of the University of Niš. My bachelor’s thesis was about Julis Caesar. Soon, I completed my master’s studies at the same university.
For years now, I have been working as a teacher in a local elementary school, but my passion for writing isn’t fulfilled, so I decided to pursue that ambition online. There were a few gigs, but most of them were not history-related.
Then I stumbled upon roman-empire.com, and now I am a part of something bigger. No, I am not a part of the ancient Roman Empire but of a creative writing team where I have the freedom to write about whatever I want. Yes, even about Star Wars. Stay tuned for that.
Anyway, I am better at writing about Rome than writing about me. But if you would like to contact me for any reason, you can do it at contact@roman-empire.net. Except for negative reviews, of course. 😀
Kind regards,
Vladimir