Monetary debasement in Roman times from nostr:npub1a2cww4kn9wqte4ry70vyfwqyqvpswksna27rtxd8vty6c74era8sdcw83a's great book Broken Money - “Briefly under the reign of Tiberius {the denarius} was increased in purity, but by around 64 A.D. it further decreased in size and was less than 94% silver... By the end it began to fall rapidly and was only around 5% silver by the year 274.”