Rhapsody 19 is best known for a scene where Odysseus is recognized by his old nurse Eurykleia. She notices a tell-tale scar on his leg—the result of a wound that marks the moment in his youth when he was gored in a boar hunt. This scar can be seen as a sēma or ‘sign’ of the hero’s identity.

“Euryclea Discovers Ulysses” (1805). John Flaxman (English, 1755–1826). Purchased as part of the Oppé Collection with assistance from the National Lottery through the Heritage Lottery Fund 1996. Image via the Tate.