The Trojan Horse
Much like the Cherry Tree anecdote, the Trojan Horse legend is a lie about another lie. A regular Fib Newton! So the story goes, the Greeks offered the Trojans a victory prize for the protecting their city so well: a giant, wooden horse. Unfortunately, they didn't mention that the gift was a scheme for breaking into the town walls by subterfuge rather than force. Though the Trojan War is a real historical event, this particular flourish is mythological. It's also a reminder that the phrase "don't look a gift horse in the mouth" is way off base. The Trojans definitely should have given their gift horse a once over.