The Myth of Achilles and the Trojan War

Achilles was the son of Peleus, king of Phthiotis in Thessaly; his mother was Thetis, a sea-goddess. Many incredible stories are told concerning the manner in which the hero was nursed in his infancy. According to one account, his mother designed to make him immortal, and for that purpose anointed him with ambrosia during the day, and laid him in the fire at night. The fears of Peleus interrupted this strange treatment, and Achilles remained subject to death.
Calchas had declared that Troy could not be taken without his aid, and Thetis, who was aware that her son was destined to perish if he joined the expedition, disguised him in female attire, and concealed him among the daughters of King Lycomedes... The war in the land of Troy continued year after year. The Greeks drew up their ships upon the beach and lived in them there by the sea. Many a battle was fought and many a town was taken and burned, but the Trojans would not give up Helen, and the war still went on...