The Roman Origin of Achilles' Heel Myth in Statius' Achilleid

The famous story of Achilles' vulnerable heel, where his mother Thetis dipped him into the river Styx, does not appear in Homer's Iliad or any Greek myth. It was first recorded by the Roman poet Publius Statius in his unfinished epic the Achilleid, written around AD 95/96. In Greek tradition, Achilles was a mortal hero who could be injured, as shown in the Iliad where Asteropaeus grazes his elbow. Earlier Greek sources, such as Apollonius of Rhodes' Argonautica (3rd century BC), describe Thetis attempting to make Achilles immortal by burning away his mortal parts with fire, not water. Statius innovated the Styx-dipping narrative, where Thetis holds Achilles by the heel, creating his only weak spot. The Achilleid also includes episodes like Achilles hiding among the daughters of Lycomedes on Scyros, discovered by Odysseus. The epic was left incomplete due to Statius' writer's block. The idiom 'Achilles' heel' entered modern lexicon, paralleling superhero tropes like Superman's kryptonite, which emerged in Action Comics #161 (1951).