Table of Contents
Tradition: Ancient Greek
Main Figures: Heracles (Hercules), Eurystheus, Hera, Zeus, Athena, Iolaus
Themes: Penance and purification • Superhuman strength and ingenuity • Divine hostility and assistance • The civilising hero who clears the world of monsters • Mortality and eventual apotheosis
Setting: The Argolid, the wider Greek world, and distant regions at the edges of the known earth
No hero of Greek mythology is more famous for sheer physical power and relentless endurance than Heracles (known to the Romans as Hercules). His name is attached to a cycle of twelve labours that took him from the Peloponnese to the ends of the earth and down into the underworld itself. The labours began as a punishment and became the foundation of his immortal fame. What follows is a retelling of the traditional sequence, based primarily on the account preserved by Apollodorus and other classical sources, with explanations in brackets to help readers who are new to the material.
The narrative belongs to Greek heroic legend. It is presented here as a significant ancient story cycle, not as a historical record.
The Story
The Origin of the Labours
Heracles was the son of Zeus and the mortal woman Alcmene. Zeus’s wife Hera (queen of the gods) hated the child of her husband’s affair and persecuted him throughout his life. After Heracles had already performed notable deeds as a young man, Hera struck him with a fit of madness. In that madness he killed his wife Megara and their children.
When sanity returned, Heracles sought purification and went to the Oracle of Delphi. The Pythia (the priestess of Apollo) ordered him to go to Tiryns and serve King Eurystheus for twelve years, performing whatever tasks the king imposed. If he completed the labours, he would be granted immortality. Eurystheus, a relative and a weaker man who feared Heracles, was delighted to have the hero under his authority. He set about devising tasks that seemed impossible.
Originally ten labours were required. When Heracles completed them, Eurystheus disqualified two (the Hydra, because Heracles had help, and the Augean Stables, because he received payment). Two further labours were added, bringing the total to the famous twelve.
The Pythia told him to dwell in Tiryns, serving Eurystheus for twelve years, and to accomplish the labours that would be imposed upon him. When the labours were completed, she said, he would be granted immortality.
Apollodorus, Library (adapted)
The Twelve Labours
1. The Nemean Lion
Heracles was sent to kill a great lion that terrorised the region of Nemea and whose skin was invulnerable to weapons. After discovering that arrows and clubs were useless, he cornered the beast in its cave, stunned it with his club, and strangled it with his bare hands. He then used the lion’s own claws to flay the skin and thereafter wore the impenetrable hide as armour and the head as a helmet.
2. The Lernaean Hydra
The Hydra was a multi-headed water-serpent living in the marshes of Lerna. One of its heads was immortal. Each time Heracles cut off an ordinary head, two grew in its place. With the help of his nephew Iolaus, who seared the necks with fire to prevent regrowth, Heracles defeated the creature. He buried the immortal head under a rock and dipped his arrows in the Hydra’s venom, making them lethally poisonous. Eurystheus refused to count this labour because of Iolaus’s assistance.
3. The Ceryneian Hind
This was a sacred deer with golden antlers and bronze hooves, dedicated to Artemis. Heracles was ordered to capture it alive. He pursued it for a full year across Greece before finally netting it or wounding it slightly and carrying it back. Artemis forgave him when he explained the necessity of the labour.
4. The Erymanthian Boar
Heracles was sent to capture a great destructive boar that lived on Mount Erymanthus. He drove it out of its thicket into deep snow, exhausted it, and trapped it with nets. He then carried the living boar back to Eurystheus, who was so terrified that he hid inside a large bronze jar (pithos).
5. The Augean Stables
King Augeas of Elis owned vast herds of cattle whose stables had not been cleaned for years. Heracles was ordered to clear the dung in a single day. He diverted the rivers Alpheus and Peneus through the yards, washing them clean. Because he had bargained with Augeas for payment (a tenth of the cattle), Eurystheus disqualified the labour.
6. The Stymphalian Birds
These man-eating birds with bronze beaks, claws, and feathers haunted the marshes of Stymphalus. Athena gave Heracles a pair of bronze krotala (noise-making clappers) made by Hephaestus. The noise startled the birds into flight, and Heracles shot them down with his arrows (or in some versions drove them away).
7. The Cretan Bull
This was the magnificent bull that Minos had failed to sacrifice to Poseidon (the same bull that fathered the Minotaur). Heracles wrestled it into submission, rode it across the sea to the mainland, and brought it to Eurystheus. The bull was later released and eventually reached Marathon, where Theseus later dealt with it.
8. The Mares of Diomedes
Diomedes, king of the Bistones in Thrace, owned four man-eating horses. Heracles seized the mares and, in most versions, fed Diomedes himself to them before bringing the animals back to Eurystheus. The mares were later dedicated to Hera or released on Mount Olympus.
9. The Girdle of Hippolyta
Heracles was sent to obtain the war-belt (girdle) of Hippolyta, queen of the Amazons. At first Hippolyta agreed to give it peacefully, but Hera spread a rumour that Heracles intended to abduct the queen. Fighting broke out. Heracles killed Hippolyta and took the girdle. In some versions the conflict is resolved differently, but the belt is obtained.
10. The Cattle of Geryon
Geryon was a three-bodied (or three-headed) warrior living on the island of Erytheia at the far west of the world. He owned a herd of red cattle guarded by the herdsman Eurytion and the two-headed dog Orthrus. Heracles killed Orthrus, Eurytion, and finally Geryon, then drove the cattle all the way back to Greece—a long and eventful journey that included raising a monument at the edge of the known world (the Pillars of Heracles, associated with the Strait of Gibraltar).
11. The Apples of the Hesperides
These golden apples grew on a tree in a garden at the edge of the world, guarded by the Hesperides (nymphs) and by the hundred-headed dragon Ladon. In the most common version Heracles persuaded the Titan Atlas, who held up the sky, to fetch the apples while Heracles temporarily took the burden of the sky on his own shoulders. When Atlas returned, Heracles tricked him into taking the sky back and departed with the fruit. In other versions Heracles kills Ladon and takes the apples himself.
12. The Capture of Cerberus
The final labour required Heracles to descend into the underworld and bring back Cerberus, the three-headed hound that guarded the gates of the dead. Aided by Hermes and Athena, Heracles descended, negotiated with Hades (or overpowered the dog), and carried Cerberus up to the surface. He showed the beast to Eurystheus (who again hid in fear) and then returned it to the underworld.
When Heracles had shown Cerberus to Eurystheus, he took him back to the land of Hades. The last of the labours was complete.
Apollodorus, Library (adapted)
What began as a punishment for the murder of his family became the series of exploits that defined Heracles as the greatest of Greek heroes and prepared the way for his eventual acceptance among the gods.
After the Labours
With the twelve labours completed, Heracles was free of Eurystheus’s service. He continued to have many further adventures, marriages, and battles. At the end of his mortal life he was poisoned by the blood of the Centaur Nessus (a secondary consequence of an earlier encounter). In agony he built his own funeral pyre. As the flames rose, a cloud descended and carried him to Olympus, where he was reconciled with Hera and given Hebe, goddess of youth, as his wife. The hero who had suffered so much from Hera’s hatred was finally received among the gods.
Variations of the Myth
Order and Details of the Labours
The canonical list of twelve is stabilised in Apollodorus and later sources. Earlier art and literature sometimes show different selections or sequences of deeds. Details within individual labours (especially the Hesperides and the Amazons) vary considerably between authors.
Help and Disqualification
Eurystheus’s refusal to count the Hydra and the Augean Stables is a standard part of the tradition. Other labours also involve assistance (Athena’s clappers, Iolaus’s fire, Hermes and Athena in the underworld), but these were allowed to stand.
Local and Later Traditions
Many regions of the Greek world attached local exploits to Heracles. The Roman Hercules developed additional stories and a strong cult identity of his own, while remaining recognisably the same hero.
The Mythological Background
Heracles is the archetypal Greek hero of strength, endurance, and civilising force. His labours systematically clear the world of monsters and dangers, making the land safer for human habitation. At the same time he is a figure of excess—capable of terrible violence when under the influence of madness or rage—and of profound suffering.
The cycle of the twelve labours gives structure to a career that would otherwise be a long string of independent episodes. It also links the hero’s personal purification after the murder of his family to a series of deeds that benefit the wider world.
The Meaning of the Myth
The labours dramatise the idea that even the greatest guilt can be worked through by service and endurance. Heracles does not escape the consequences of the murders; he is compelled to submit to a weaker king and to risk his life repeatedly. Out of that compelled service comes a reputation that outlasts every other hero’s.
The individual labours also explore different kinds of difficulty: invulnerable beasts, regenerative monsters, sacred animals that must be taken alive, filthy and degrading tasks, distant journeys, and finally the descent to the land of the dead. Strength alone is rarely enough; intelligence, persistence, and occasional help from the gods are all required.
For the Greeks Heracles became a model of the hero who suffers, perseveres, and is ultimately rewarded with a place among the gods. For later ages he has served as a symbol of physical power, of the conquest of chaos, and of the long, hard road from error to redemption.
Symbols & Motifs
| Symbol | Role in the Cycle |
|---|---|
| The Lion Skin | Trophy of the first labour; thereafter Heracles’ characteristic armour and attribute |
| The Club | Simple, brutal weapon that complements his strength; often shown in art |
| The Hydra’s Venom | Lasting, poisonous consequence of the second labour; later causes Heracles’ own death |
| The Bronze Jar of Eurystheus | Comic emblem of the king’s cowardice in the face of the hero he commands |
| The Pillars of Heracles | Monument at the edge of the world; marker of the farthest reach of the tenth labour |
| Cerberus | The final labour; proof that the hero has faced even the realm of death and returned |
Important Figures
- Heracles – Son of Zeus and Alcmene; performer of the twelve labours
- Eurystheus – King of Tiryns who imposes the labours and lives in fear of the hero
- Hera – Queen of the gods whose hostility drives much of Heracles’ suffering
- Iolaus – Nephew and companion who helps with the Hydra
- Athena – Goddess who frequently aids Heracles
- Megara – First wife of Heracles, killed with their children in his divinely sent madness
Cultural & Historical Context
The labours of Heracles were among the most popular subjects in Greek and Roman art. Temple metopes (notably at Olympia and on the Temple of Zeus), vase-paintings, mosaics, and sculptures repeatedly showed the hero wrestling the lion, fighting the Hydra, or carrying the boar. The cycle gave artists a ready-made sequence of dramatic confrontations.
In literature the labours appear in epic, tragedy, and prose summaries. Philosophers and moralists used Heracles as an example of virtue earned through toil (the famous “Choice of Heracles” between Virtue and Vice is a related but separate story). In the Roman world Hercules became a major god of strength, commerce, and victory, while retaining the memory of the twelve labours.
The figure has remained productive in later European culture—from Renaissance emblem books to modern films and novels—whenever a story needs a hero of unmatched physical power who must nevertheless work through a long series of trials.
Sources & Ancient Texts
Primary Sources:
• Apollodorus, Library 2.4.8–2.5.12 – the clearest continuous ancient account of the twelve labours
• Diodorus Siculus, Library of History – parallel prose narrative
• Tragic and lyric allusions (Sophocles, Euripides, Pindar, and others)
• Extensive artistic evidence from the Archaic period onward
Note on Approach
This retelling follows the standard classical sequence and supplies brief explanations of each labour for clarity. It presents the cycle as the central heroic narrative of Heracles rather than as a historical chronicle.
The Twelve Labours of Heracles begin in madness and bloodshed and end in the conquest of death itself. The hero who strangled the Nemean Lion and dragged Cerberus from the underworld remains the most physical and most enduring of Greek culture-heroes. His story says that strength alone is not enough—endurance, ingenuity, and the willingness to submit to a long and humiliating penance are also required—and that even a life marked by catastrophic error can still be shaped into something that the gods themselves will finally honour.