🔴 hard

An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?

Common Wrong Answers

It's too old to be real.

While the coin is indeed ancient, the age alone does not determine authenticity. Coins from that period do exist.

The coin is made of a modern material.

The material of the coin isn't specified in the riddle; the main issue is the inscription of 'BC' itself.

Coins weren't used in 57 BC.

Coins were in circulation during that time; the existence of coins from that era is well-documented.