Well, they had Prince Edward in a can. . . . Finding a Lost Emperor in a Clay Pot

Forget stone, a discovery of a Roman coin in Britain proves history is set in bronze and silver.

During the chaos and confusion of the third century A.D., amid widespread disease, famine, and barbarian invasions, a brazen upstart seizes control of a breakaway state within the Roman Empire. He proclaims himself emperor only to disappear days later, his life and story lost, save for only the briefest of remarks in two fragmentary and unreliable sources. Then, an amateur treasure hunter scanning the green fields of Oxfordshire with a metal detector chances upon a small clay pot filled with more than 5,000 ancient Roman coins. A British Museum archaeologist brushing away centuries of corrosion and carefully picking apart bronze and silver pieces, discovers one exceedingly strange coin. Among the thousands of unremarkable ones, this coin carries an unfamiliar bearded face, a perplexing name, Domitianus, and most strikingly, the three letters IMP, short for imperator, or emperor