The mythological event that marks the turning point of the Trojan War is the use of the Trojan Horse. This clever strategy, devised by Odyssey, allowed Greek warriors to secretly enter Troy, leading to the city’s fall. The event showcases the blend of deception, strategy, and the unpredictable nature of war. It also encapsulates themes of hubris and the consequences of underestimating one’s enemies, reinforcing the significance of cunning over brute force in achieving victory.