My numismatist friend Nathan Bauman might find this news of interest. I'm a layman, and I think this is utterly fascinating.
For the first time Japanese archaeologists have unearthed ancient Roman coins at the ruins of an old castle.
The discovery of 10 bronze and copper coins — the oldest dating from about 300-400 AD — in southern Okinawa caught researchers by surprise.
It was the first time Roman Empire coins have been discovered in Japan, thousands of kilometres from where they were likely minted.
"At first I thought they were one-cent coins dropped by US soldiers," archaeologist Hiroki Miyagi said.
"But after washing them in water I realised they were much older. I was really shocked."