Ancient Roman coins found buried under ruins of Japanese castle

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. 
Read more: http://www.independent.co.uk/news/science/archaeology/roman-coins-discovery-castle-japan-okinawa-buried-ancient-currency-a7332901.html?source=Snapzu