Roman Denarius

The Roman Denarius's silver content plummeted from nearly pure in 211 BC to barely half by 238 AD, mirroring the empire's economic woes in a tangible way.

That decline wasn't just metallurgy; it was policy. Early denarii, struck in Rome and other Italian mints, funded wars and public works, with designs evolving from gods to emperors' portraits. By the third century, inflation forced the mint to dilute the alloy, stretching resources as the empire stretched itself thin. We don't know exact production figures—records are spotty—but estimates suggest millions circulated, from Britain to the Middle East.

Handling these coins after thirty years, I've seen fakes that fool the novice. One dry observation: the Denarius proves that even currency can't escape devaluation over time.