Apollonius of Rhodes wrote the Argonautica in third-century BCE Alexandria, and he did something no Greek epic poet had done before: he built a heroic poem around a leader who cannot do the job.
Jason is repeatedly described as amēchanos — at a loss, without resource. He is handed the leadership and tries to give it to Heracles, who declines. He weeps. He hesitates. Every decisive act of the quest is performed by somebody else: Heracles rows the fastest, Orpheus stops the mutiny and out-sings the Sirens, Tiphys steers through the Clashing Rocks, Zetes and Calais drive off the Harpies, Polydeuces wins the boxing match. And the fleece itself is won entirely by Medea, who supplies the fireproof ointment, tells him what to do about the sown men, and drugs the sleepless serpent.
What Jason has is charm, and he uses it on the one person who can solve his problem. Apollonius is entirely aware of this. Book 3, in which a Colchian princess falls in love against her own judgement, is the first sustained psychological love narrative in European literature, and its effect depends on the reader knowing what this man will do to her later.
One sandal
The quest begins with a prophecy about footwear. Pelias, who had usurped the throne of Iolcus from Jason's father Aeson, was warned to beware a man wearing one sandal. Jason, raised in secret by the centaur Chiron, lost one crossing a river — in the standard version by carrying an old woman across, who was Hera in disguise, which is why the goddess protects him throughout. He arrived at a public sacrifice half-shod, and Pelias, unable to kill him openly, set him an impossible errand: fetch the Golden Fleece from Colchis at the far end of the Black Sea.
The fleece belonged to the ram that had carried Phrixus and Helle away from a sacrifice — Helle fell off into the strait that took her name, the Hellespont — and hung in a grove at Colchis, guarded by a sleepless serpent. The full voyage is a catalogue of episodes strung along a real trade route.
The Argo, and why the geography matters
The ship was built by Argus with a speaking beam of Dodonian oak set into the prow by Athena — a piece of timber from Zeus' oracle that could give warnings, and one of the few genuinely uncanny objects in the poem.
The route is the interesting part. The Argonauts go through the Hellespont and the Bosporus, past the Symplegades (the Clashing Rocks, passed by releasing a dove first and rowing through behind it), along the southern Black Sea coast to Colchis at the eastern end — modern Georgia. That is precisely the direction of early Greek colonisation and metal trade, and Strabo already suggested that the golden fleece reflected the Caucasian practice of catching alluvial gold in sheepskins laid in streambeds, a technique attested in the region into modern times. The return journey, by contrast, is fantastical: up the Danube, across to the Adriatic, round Italy, past Circe, past the Sirens, through Scylla and Charybdis, to Libya, where they carry the ship overland for twelve days. Apollonius is reconciling several incompatible earlier routes.
What he does to Medea
She leaves her home for him, kills or arranges the death of her brother Apsyrtus to slow the pursuit — Apollonius makes Jason complicit in a straightforwardly treacherous ambush — and on returning to Iolcus persuades Pelias' daughters to cut up and boil their father on the promise of restoring his youth. They flee to Corinth.
There, some years and two sons later, Jason arranges to marry the daughter of King Creon, and defends it to Medea in Euripides' play with an argument of such calm self-interest that it is still shocking: she should be grateful for having been brought from a barbarian land to Greece, and the new marriage is for the family's security. Her revenge destroys everything he has, including the children.
His own end is small. Euripides' Medea prophesies it, and the tradition confirms: he dies alone, sleeping under the beached and rotting Argo, when a beam falls on him. The hero killed by his own ship is the tidiest closing image any Greek hero gets, and it is a comment on a man whose entire identity was the voyage.
Cult, and the Argonaut network
The voyage functioned as a charter myth for an enormous number of places. Cities and islands around the Black Sea, the Adriatic and the Aegean claimed an Argonaut founder, a landing, a spring, an altar, or a stone the ship was moored to. Pausanias records several; the Roman-era author Apollonius' own scholiasts list more. This is a good example of a myth functioning as a shared network across the Greek world — the crew was expandable, and a city that wanted a place in it could usually find one.
Talos and the special effects
The best-known set piece today comes near the end: Talos, the bronze giant made by Hephaestus who circled Crete three times a day hurling rocks at approaching ships. He had a single vein running from neck to ankle, closed by a bronze nail. Medea, from the ship, works on him with the evil eye and incantations until he grazes his ankle on a rock and the ichor runs out "like molten lead". Ray Harryhausen's stop-motion Talos in Jason and the Argonauts (1963), all creaking bronze and slow turns, is one of the most admired effects sequences in cinema, and the same film gave the skeleton warriors grown from the dragon's teeth — a scene that took four months to shoot for three minutes of film.
Where he stands now
Jason is unusual among Greek heroes in having been better served by modern criticism than by modern retelling. Films and children's books give him the voyage, the monsters and the fleece and stop before Corinth, which produces an adventurer with no character at all. Serious modern treatments almost always come at him through Medea — from Euripides onward, the story belongs to her, and Medea has been one of the most-performed Greek tragedies of the last century.
The name itself remains extremely common in English, largely disconnected from the myth, and shares that fate with a small group of Greek names that became ordinary given names without carrying their stories.
The ship, the missing Heracles, and whose skill really wins the fleece
Was the Argo a real ship type?
The pentekonter, a fifty-oared galley, was a real early Greek warship and the poem's crew size reflects it. In 1984 the writer and sailor Tim Severin built a reconstruction, the Argo, and rowed it from northern Greece to Georgia to demonstrate the route was navigable under oar — a voyage that took two seasons and made a reasonable case that Bronze Age crews could have done it.
Why is Heracles removed from the voyage?
Because he unbalances the poem. Apollonius has him left behind at Mysia, searching for his lost companion Hylas, who has been pulled into a spring by nymphs — and the crew sails without him after a bitter argument. Some earlier versions kept him aboard to the end. Removing him is a deliberate authorial decision: with Heracles present, nothing that follows would be difficult.
Is Medea's magic Greek or foreign?
Presented as both, and the ambiguity is the point. She is a priestess of Hecate, a Greek goddess whose own origins are Anatolian; her family are the children of Helios; and her home is at the far edge of the Greek world. Apollonius describes her herb-gathering in careful technical detail — the Prometheian herb cut with a Caspian shell at midnight, the black earth shaking — which frames her expertise as knowledge rather than as ethnic strangeness.
Did the fleece have any power?
Nothing is claimed for it. That is one of the odder features of the story: the object at the centre of the greatest sea quest in Greek myth confers no benefit, has no use, and simply hangs in a grove at Colchis and then in a temple in Greece. It is a trophy whose entire value is that it is difficult to get, which is arguably the most honest thing any Greek quest object does.