Achilles

In Greek mythology, Achilles (Ancient Greek: Ἀχιλλεύς, Akhilleus, ) was a Greek hero of the Trojan War, the central character and the greatest warrior of Homer's Iliad.

Later legends (beginning with a poem by Statius in the 1st century AD) state that Achilles was invulnerable in all of his body except for his heel. As he died because of a small wound on his heel, the term Achilles' heel has come to mean one's point of weakness.