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archeologist in the Channel Islands off the coast of France have discovered two Roman coins — one featuring a caesar who was " bumped off " as a teenager and another describe a Roman emperor who was killed by invade barbarian .

The discovery of the coins and previous findings of Roman structure , let in the remains of a fort , suggest that the Romans had set up shop on the small island of Alderney , the northernmost Channel Island .

Two close-ups of the Roman coins found at the site

Archaeologists found two Roman coins by a Roman-era building. On the right is a silver coin, known as an antoninianus, of Roman emperor Valerian II dated to A.D. 255. On the left is a bronze coin of Eastern Roman emperor Valens dated to A.D. 364 to 367.

" We ’re start to think that the Romans were here to keep an heart on that little stretch of water between here and France,“Jason Monaghan , an archaeologist with the excavation and secretary of Dig Alderney , a brotherly love for archaeology on the island , told Live Science . " The ship come up from the Mediterranean carry shipment and oil and wine and things like that would have had to pass Alderney , so the Romans believably put a fort there in lodge to keep an eye on that trade route to stop pirates and things of that nature . "

Archaeologists have been excavating at Alderney since 2008 , but there ’s still more to uncover , Monaghan said . In 2017 , electric workers divulge Iron Age burial and parts of a Roman building , showing that world have occupied the island for one thousand of class , he say .

An excavation of the Roman - era construction revealed that it had three rooms , a courtyard on one side , a paved area on the other and a garbage dump to the southeast . One of the coin was get in this dump : A silver coin , make love as an " antoninianus " that dates to A.D. 255 and was deserving two denarii , a standard argent coin strike during the Roman Catholic earned run average . The coin features the bust of Valerian II — the grandson of Roman emperor butterfly Valerian , who named his Logos co - emperor and his teen grandson caesar . However , Valerian II was n’t long for this globe ; he died two years later under suspicious circumstances .

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The coin of Valerian II is " a small bit bigger than my thumbnail , " Monaghan read . " It ’s quite thin . It ’s got the head of the Julius Caesar , he was like an assistant Saturnia pavonia , and he was only a teenager at the time . He was bump off a duo of years later . "

Monaghan mark that because the Roman Empire had a slew of pretentiousness during this period , they were " diluting their coinage , " so the coin is n’t solid silver .

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In later layer of the building , archeologist find oneself the other coin — a bronze of Roman Catholic co - emperor Valens dating to between A.D. 364 and 367 . Valens was famously kill by the invading Goth at the Battle of Adrianople in what is now Turkey .

" It ’s quite a humbled - time value coin from towards the oddment of the Roman Empire in the West , " Monaghan say . " They ’re quite muddy , these bronze — they ’re not very well struck . "

About 90 invertebrate foot ( 27 meters ) away from the building are the remains of a Roman fort . " The Valens coin is from about the same appointment as the papistical fortress was construct , " Monaghan said . It ’s not recognize who else lived on the island besides the fort ’s soldiers , but it ’s potential their phratry or government officials also lived there . So , it ’s undecipherable how the construction was used , but there are likely more Roman - geological era buildings now buried across the island ’s George Sand sand dune .

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" It ’s like a miniPompeiidown there , " Monaghan say .

As for the Iron Age site , archaeologists have find several human stiff in a " very rich " burial basis , he added .

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