LoopholeThe military fortification that shaped modern legal language

From the show

History of Phrases

Today, a loophole is a clever way out of a contract, but in the Middle Ages, it was a matter of life and death. Trace the origin of this phrase back to the "arrow loops" of castle fortifications—narrow slits that allowed archers to fire with impunity. Understand how a literal gap in the stone became the ultimate symbol of evasion.