A Scuba Diver Just Discovered A Massive Treasure Cache Of Tens Of Thousands Of Ancient Roman Coins

Published November 15, 2023
Updated March 12, 2024

The coins, which date back to the 4th century, were preserved in excellent condition, with archaeologists saying even the most weathered were still legible.

Roman Coins

Italian Ministry of CultureThe Roman coins date back to the 4th century C.E., after currency was standardized in the Roman Empire.

Divers in Italy discovered tens of thousands of ancient Roman coins off the coast of the island of Sardinia.

A diver noticed something metallic in the seagrass and alerted authorities. Divers from the Italian Ministry of Culture’s art protection squad and undersea archaeology department were sent out to investigate.

They found between 30,000 and 50,000 ancient Roman coins, made of bronze and “in an exceptional and rare state of conservation,” according to Heritage Daily. They are believed to be from the early 4th century.

Roman Coins In Seabed

Italian Ministry of CultureThe coins were discovered in sea grass just off the coast of the Italian island of Sardinia.

The coins are of a type called follis, bronze coins introduced in the late 3rd century C.E. by Roman Emperor Diocletian as a standardized form of currency, known as the Edict on Maximum Prices. Previously, each emperor and leader of the empire had minted their own coins.

“The restoration and conservation operations of the coins and materials found will allow us to expand and deepen our knowledge of the context of the finds from which a lot of information can still be extracted,” the ministry said in a statement.

Roman Coins

Italian Ministry Of CultureBetween 30,000 and 50,000 bronze Roman coins were found off the coast of Sardinia.

The state of preservation of the coins was incredible, according to the ministry. Even the few coins that were damaged still had legible inscriptions, with minting dates from 324 C.E. to 340 C.E.

Experts believe the coins could have come from the remains of a shipwreck. Investigations are continuing around the site of their discovery to look for any further remains or artifacts.

History News November 2023
History Uncovered Podcast
Episode 97: History Happy Hour, November 2023
From the discovery of an ancient Roman coin trove to a 1,000-year-old German skeleton unearthed with a hollowed-out face, here's what happened in the world of history this month.

“The treasure found in the waters off Arzachena represent one of the most important coin discoveries” in recent years, said Luigi La Rocca, a Sardinian archaeology department official, according to the Associated Press. “[The find is] further evidence of the richness and importance of the archaeological heritage that the seabed of our seas, crossed by men and goods from the most ancient of epochs, still keep and preserve.”

The find is one of the largest caches of ancient coins ever discovered. It is even larger than the notable discovery of 22,000 Roman coins in 2014.

That year, Laurence Egerton unearthed the coins with a metal detector in Devon, England. He reported the find to authorities and then slept in his car for three nights to guard the stash.

“It’s by far the biggest find I’ve ever had,” Egerton told the Guardian. “It really doesn’t get any better than this.”

But despite the massive amount of coins found, it wouldn’t have amounted to much financially.

“It is one of the largest coin hoards of the fourth century ever found within the Roman empire but, despite the number of coins found, the financial value would not have been great, amounting to approximately four gold coins,” said Dr. Roger Bland from the British Museum. “This sum of money would possibly have provided the ration of four soldiers for one year or a worker’s pay for two years.”


After reading about the Roman coins found off the coast of Italy, read about the Saddle Ridge hoard, the biggest buried treasure in U.S. history. Or, learn about the 1933 Double Eagle, the most valuable coin in the world.

author
Hannah Reilly Holtz
author
Hannah Reilly is an editorial fellow with All That's Interesting. She holds a B.A. in journalism from Texas Tech University and was named a Texas Press Association Scholar. Previously, she has worked for KCBD NewsChannel 11 and at Texas Tech University as a multimedia specialist.
editor
John Kuroski
editor
John Kuroski is the editorial director of All That's Interesting. He graduated from New York University with a degree in history, earning a place in the Phi Alpha Theta honor society for history students. An editor at All That's Interesting since 2015, his areas of interest include modern history and true crime.