The legendary tale of the Trojan Horse originates from the Trojan War, where the Greeks devised a cunning ploy to infiltrate the city of Troy. They constructed a giant wooden horse, hiding soldiers inside, and left it outside the city as an offering. The Trojans brought the horse into their city, believing it to be a gift. That night, the hidden soldiers emerged, opened the gates for the Greek army, and ultimately led to the downfall of Troy. This story symbolizes the themes of deception and the consequences of hubris.