sparta appreciation post The Battle of Thermopylae (/θərˈmɒpɪliː/ thər-MOP-i-lee)[14] was fought in 480 BCE at Thermopylae between the Achaemenid Persian Empire under Xerxes I and an alliance of Greek city-states led by Sparta under Leonidas I. Lasting over the course of three days, it was one of the most prominent battles of both the second Persian invasion of Greece and the wider Graeco-Persian Wars. #romanempire #fyp #ancientgreece #sparta #orthodox