Archaeologists were left baffled by the "strange" discovery of ancient Roman coins buried in the ruins of a castle in Japan.
The four copper coins were retrieved from soil beneath Katsuren Castle on Okinawa Island, and were originally thought to be a hoax before their true provenance was revealed.
The designs on the coins are difficult to decifer as they have been eroded over time, but x-ray analysis revealed several of the relics bore the image of Emperor Constantine I.
The Roman coins appear to be much older, dating back to at least 400 AD according to estimates.
The board of education in the Japanese city of Uruma announced the discovery, and said the story of how the coins came to arrive in Japan remained shrouded in doubt.
http://www.independent.co.uk/news/s...okinawa-buried-ancient-currency-a7332901.html