Greek Mythology: The Complete Guide to Gods, Heroes, and Myths

A comprehensive guide to Greek mythology covering the Olympian gods, legendary heroes, terrifying monsters, and the epic myths that shaped Western civilization.

Greek mythology is storytelling traditions in human history. For more than three thousand years, the tales of Zeus, Athena, Heracles, and the Trojan War have shaped literature, art, astronomy, and the very language we use to describe heroism, tragedy, and the human condition. This guide offers a comprehensive overview of the entire mythological world, from the birth of the cosmos to the fall of Troy, and from the blood-soaked throne of the Olympian gods to the lonely wanderings of heroes like Odysseus.

Whether you are researching ancient religion for school, looking for source material for a novel, exploring a game like God of War or Hades, or just curious about why the sky is called “Ouranos” or why doctors swear the Hippocratic oath, this guide gives you a structured path through the myths. It is organized to take you from the broadest themes down to specific characters and stories, and every page is densely linked to deeper articles.

How to Read These Myths

Greek myth is not a single book. It is a network of sometimes-conflicting stories told by different writers across several centuries, and the right way to read any particular myth depends on which ancient source is in view. We have tried to make that source visible on every page.

  • The earliest large-scale Greek mythological texts are the two epic poems of Homer, the Iliad and the Odyssey (probably eighth century BCE), which tell the story of the Trojan War and its aftermath. Homer is the source of the Olympian gods as we know them, of the heroes Achilles, Odysseus, Hector, Ajax, and of the standard images of war and homecoming.
  • The second foundational source is the Hesiodic corpus, especially the Theogony and the Works and Days (also eighth or seventh century BCE). Hesiod gives the cosmic genealogy of the gods, the myth of the Five Ages of Man, and the moralising reading of the human condition that runs through the Greek tradition.
  • The Greek tragedians — Aeschylus, Sophocles, Euripides — wrote the dramatic versions of the myths in the fifth century BCE: the Oresteia, the Oedipus Rex, the Bacchae, the Medea. The tragedy version is often the source of the modern popular image of the myth, and it is usually darker and more morally complicated than the epic version.
  • The Hellenistic and Roman poets — Apollonius of Rhodes, Callimachus, Ovid, Virgil, Lucan — wrote the epyllia (short epics) and the Metamorphoses and Aeneid that became the standard sources of the medieval and modern traditions. Ovid in particular is the source of most of the myth images that have survived into the modern period.
  • The mythographic tradition — Apollodorus of Athens’ Bibliotheca (first or second century BCE), Pausanias’ Description of Greece (second century CE), Hyginus’ Fabulae (first or second century CE) — is the encyclopedic tradition that tried to put all the myths into a single connected narrative. Apollodorus in particular is the single most useful source for the modern reader who wants to know “the standard version” of any given myth.

Different sources sometimes disagree. The myth of Aphrodite’s birth is told two different ways in the Iliad and the Theogony; the story of Helen is told three different ways in the Cypria, the Iliad, and Stesichorus’ Helen; the death of Odysseus is told in two different ways in the Odyssey and the Telegony. We have noted the major variants on the relevant pages. When you see a story told in two ways, both are usually correct in the sense that both are attested in the ancient sources, and the variant you prefer is a matter of which tradition you are following.

One important point: Greek myth is not the same as Greek religion. The myths were the narrative background of a real religious practice — the cult of the gods at the temples, the sacrifices at the altars, the Mysteries at Eleusis. The myths explained the why of the cults, but the cults were the actual practice. The Olympian religion was a real, lived religion, with priests and priestesses, festivals and rituals, sacrifices and offerings, and the great temples at Olympia, Delphi, Delos, and the Athenian Acropolis as its central monuments. The myths were the stories the religion told about itself.

The Origins of Greek Mythology

Greek mythology did not appear in a single moment of creation. It evolved over centuries, beginning with Minoan and Mycenaean oral traditions around 2000 BCE and continuing through the Archaic, Classical, and Hellenistic periods. The earliest Greek poets, including Hesiod and Homer, gave literary form to stories that had been told around campfires and palace hearths for generations.

From Oral Tradition to Written Canon

Before the alphabet reached Greece, myths were preserved by bards who sang of heroes, gods, and the founding of cities. When the Greek alphabet was adapted from Phoenician script around 800 BCE, these oral epics began to be written down. The resulting canon, including the Iliad and Odyssey of Homer and the Theogony and Works and Days of Hesiod, became the foundation of all later Greek mythography.

These works were not scripture in the modern sense. There was no single authoritative version of any story. Instead, Greek mythology existed as a network of related but often contradictory local traditions, with city-states often promoting their own patron deities. Athens told stories that emphasized Athena, while Thebes celebrated Dionysus and Olympia glorified Zeus.

The Function of Myth in Ancient Greek Society

Myths served several essential functions in ancient Greek culture. They explained natural phenomena, legitimized political authority, taught moral lessons, and provided shared cultural identity. When Greeks asked why the seasons changed, they heard the story of Persephone, the daughter of Demeter who was stolen by Hades. When they needed to understand why misfortune strikes the innocent, they recalled the tragedies of Achilles or Oedipus.

Myths also reinforced social structures. The myth of the Five Ages of Man in Hesiod’s Works and Days justified the existing social hierarchy, while the heroic sagas of Heracles and Theseus provided role models for aristocratic youth. Even the great Homer himself operated within this framework, and understanding his work is essential to grasping how the Greeks imagined their gods.

The Cosmogony: How the World Was Born

Greek cosmology begins with chaos. Before there were gods, mortals, or even the earth itself, there was Khaos, a yawning void from which everything else emerged. This primordial emptiness gave birth to the first generation of cosmic beings.

The First Gods: Gaia, Ouranos, and the Titans

From Chaos came Gaia (Earth), Tartarus (the Underworld pit), Eros (Desire), Erebus (Darkness), and Nyx (Night). Gaia alone, without a partner, gave birth to Ouranos (Sky), who became both her son and her consort. With Ouranos, she produced the twelve Titans, the three Cyclopes, and the three Hecatoncheires, hundred-handed giants of immense strength.

Ouranos feared his children and imprisoned them inside Gaia’s body, causing her great pain. She persuaded her Titan son Cronus to castrate his father with a sickle, and from the blood that fell upon the earth were born the Furies, the Giants, and the Meliae (ash-tree nymphs). The severed genitals of Ouranos, thrown into the sea, gave rise to Aphrodite, who emerged from the foam near Cyprus.

The Rise of the Olympian Gods

Cronus, warned by prophecy that his own children would overthrow him, swallowed each of his offspring as they were born: Hestia, Demeter, Hera, Hades, Poseidon, and finally Zeus. His wife Rhea, unable to bear more children being lost, hid the youngest, Zeus, on the island of Crete. When Zeus grew to maturity, he tricked Cronus into disgorging his siblings, and a great war, the Titanomachy, began.

For ten years the Olympians battled the Titans, with Zeus wielding his thunderbolts forged by the Cyclopes. The war ended when Zeus freed the Cyclopes and Hecatoncheires from Tartarus, and the latter turned the tide by hurling hundreds of boulders at the Titans. The defeated Titans were cast into Tartarus, and the three brothers, Zeus, Poseidon, and Hades, drew lots to divide the cosmos. Zeus received the sky, Poseidon the sea, and Hades the underworld. The earth was held in common.

The Twelve Olympian Gods

The Olympian gods, so named because they dwelt atop Mount Olympus, became the central pantheon of Greek religion. Although the canonical “twelve” varies by region and time period, the standard list includes the major children of Cronus and Rhea, plus several important offspring of Zeus.

The principal Olympians are Zeus, the king of the gods and god of thunder; Hera, his sister-wife and queen of the gods; Poseidon, god of the sea; Demeter, goddess of agriculture; Athena, goddess of wisdom and strategic warfare; Apollo, god of prophecy, music, and the sun; Artemis, goddess of the hunt and the moon; Ares, god of brutal war; Aphrodite, goddess of love; Hephaestus, god of the forge; Hermes, messenger of the gods; and Dionysus, god of wine and ecstasy.

Each of these deities has a rich mythology of their own. For deeper coverage of their domains, symbols, myths, and worship, see our comprehensive guide to the Olympian gods, or dive directly into individual profiles of Zeus, Hera, Poseidon, Athena, Apollo, Aphrodite, Ares, Hephaestus, Hermes, Dionysus, Artemis, and Hades (technically chthonic but always counted among the major twelve).

Greek Heroes and Their Labors

If the gods represented the cosmic forces at work in the universe, the heroes represented the human struggle to rise above mortal limitations. Greek heroes were usually demigods, born of one divine parent and one mortal parent, and their legends explored what it meant to be caught between two worlds.

The greatest of the Greek heroes was Heracles, the son of Zeus and the mortal Alcmene, whose twelve labors became the most celebrated hero cycle in all of mythology. Other major heroes include Achilles, the near-invincible warrior of the Trojan War whose wrath drives Homer’s Iliad; Odysseus, the cunning king of Ithaca whose ten-year journey home forms the Odyssey; Perseus, the slayer of Medusa and rescuer of Andromeda; Theseus, the founder-hero of Athens who slew the Minotaur; and Jason, leader of the Argonauts in search of the Golden Fleece.

Each hero cycle typically involves divine parentage, an impossible quest, the aid and opposition of various gods, the defeat of a monster or beast, and a tragic or mysterious death. The hero’s journey, as Joseph Campbell would later formalize it, is essentially Greek heroic mythology in narrative form.

For a comprehensive treatment of these legendary figures, including their parentage, major exploits, and cultural legacy, see our guide to the Greek heroes. You can also explore individual profiles of Heracles, Achilles, Odysseus, Perseus, Theseus, and Jason.

Monsters, Creatures, and Other Mythological Beings

Greek mythology is populated with a startling menagerie of monsters, hybrid creatures, and divine beasts. These beings were not merely obstacles for heroes; they embodied the dangers of the unknown world, the consequences of hubris, and the wild forces that civilization sought to tame.

The most iconic monsters include the Minotaur, the half-bull creature imprisoned in the Labyrinth of Crete; Medusa, the Gorgon whose gaze turned beholders to stone; the Lernaean Hydra, a multi-headed serpentine beast; Cerberus, the three-headed watchdog of the underworld; the Cyclopes, one-eyed giants including the smiths who forged Zeus’s thunderbolts; the Sphinx, a riddling creature that terrorized Thebes; and the Sirens, whose songs lured sailors to their deaths.

Beyond monsters, Greek myth features a wide range of supernatural beings: nymphs of forest and spring, satyrs with their bestial lusts, winged horses like Pegasus, fire-breathing bulls, golden-horned deer, and countless chthonic spirits. Many of these creatures later became the constellations we still recognize in the night sky, the subject of our guide to Greek constellations.

For a comprehensive treatment of the strange and fearsome beings of Greek myth, see our guide to Greek monsters and creatures.

The Trojan War Cycle

No single event in Greek mythology is more famous or more influential than the Trojan War. A ten-year siege of the wealthy city of Ilion (Troy) on the coast of Asia Minor, the war was sparked by the Judgment of Paris and featured a generation of heroes, including Achilles, Odysseus, Ajax, and Hector.

The war’s mythology was shaped primarily by Homer’s Iliad and Odyssey, supplemented by the so-called Epic Cycle (now lost except in fragments and summaries), Virgil’s Aeneid, and a host of tragic plays. The events of the war, from the quarrel between Achilles and Agamemnon to the trickery of the Trojan Horse, became the foundation of Western epic literature.

The war had a long aftermath. After Troy fell, the Greek victors faced disastrous homecomings. Odysseus’s ten-year wanderings, recounted in the Odyssey, were paralleled by the trials of Agamemnon, Menelaus, Ajax the Lesser, and Neoptolemus. The survivors and their descendants, particularly Aeneas, went on to found new peoples and cities, including, in Roman tradition, Rome itself.

Greek Mythology’s Influence on the Modern World

The legacy of Greek mythology is everywhere. The names of the planets in our solar system come from Roman versions of Greek gods: Jupiter (Zeus), Mars (Ares), Venus (Aphrodite), Mercury (Hermes), Neptune (Poseidon), Saturn (Cronus), and Pluto (Hades). Many of the brightest stars in the night sky carry names derived from Greek myths, the subject of our guide to Greek constellations.

Modern psychology borrows extensively from the Greek mythic vocabulary. The Oedipus complex, the Electra complex, the Narcissus complex, the Pandora effect, the Sisyphus syndrome, and the Cassandra syndrome are all named after mythological figures. The word “phobia” itself, used in clinical psychology, derives from Phobos, the god of fear and son of Ares. For more on this fascinating topic, see our guide to mythology in psychology.

Literature from Shakespeare to Joyce, from Milton to Toni Morrison, draws on Greek myth as a deep well of imagery, allusion, and structure. Film and television, from the epics of Ray Harryhausen to the blockbusters of Zack Snyder’s 300 and the recent Disney+ series Percy Jackson and the Olympians, continue to bring these stories to new audiences. For a deeper look at the cinematic legacy, see our guide to mythology in film.

The sciences have their own debts. Taxonomy uses Greek myth (the Glaucus butterfly, the Nereis worm, the Prometheus moth). Medicine takes the caduceus from Hermes and the staff of Asclepius as its symbols. Even modern brands borrow the visual language of antiquity: Nike, the goddess of victory, lends her name to the world’s largest athletic apparel company.

How to Use This Guide

This site is organized as a deep, interconnected web of articles. The six pillar pages, including this one, give you a broad overview of the major themes. The cluster pages drill down into specific gods, heroes, monsters, and events. The long-tail pages answer very specific questions, such as “who was the mother of Achilles” or “what were the twelve labors of Heracles.”

Each page links to many others using natural, contextual references. Reading a page on Zeus, you will find links to Hera, Prometheus, Cronus, and many more. We recommend starting with a pillar page and following the links wherever curiosity takes you.

Major Themes in Greek Mythology

Beyond the individual stories, several recurring themes run through Greek mythology. Understanding these themes makes the individual tales more meaningful.

Hubris and Nemesis. The Greeks believed that excessive pride, or hubris, inevitably invited the vengeance of Nemesis, the goddess of retribution. Arachne, who challenged Athena to a weaving contest, was turned into a spider. Icarus, who flew too close to the sun with wings of wax, fell into the sea. Ajax, who violated Cassandra’s sanctuary, was destroyed by Athena. For more on this, see our discussion of hubris in Greek myth.

Fate vs. Free Will. The Moirai (Fates) controlled the thread of every mortal and god’s life, but characters constantly tried to escape their destiny. Oedipus fled Corinth to avoid the prophecy that he would kill his father, only to fulfill it. Achilles was told he would die young at Troy but chose glory over a long life. The tension between fate and choice drives much of the most powerful Greek tragedy.

Xenia, or Guest-Friendship. Hospitality was sacred in the ancient Greek world. Hosts were expected to welcome travelers, offer them food and drink, and protect them. Violators of xenia suffered terrible fates. The suitors in the Odyssey were killed by Odysseus for abusing their host. Paris’s abduction of Helen violated xenia on a cosmic scale and helped start the Trojan War.

The Power of the Underworld. No culture has ever been more obsessed with the afterlife than the ancient Greeks. The underworld, ruled by Hades and his wife Persephone, was a shadowy realm where all the dead, virtuous or wicked, wandered as pale shades. Heroes like Heracles, Odysseus, and Theseus descended to the underworld as part of their hero cycles, and the myths of Orpheus and Sisyphus explore its geography in detail.

A Brief Timeline of Greek Mythology

The mythological timeline is famously fluid, but a rough chronology emerges from the ancient sources.

Theogony (Generation of Gods). From Chaos emerged the first beings. The Titans ruled, then the Olympians overthrew them in the Titanomachy. This era is the setting of Hesiod’s Theogony.

The Age of Heroes. Following the Olympian victory, a generation of demigods performed great deeds: Heracles’s twelve labors, the voyage of the Argonauts, the hunting of the Calydonian Boar, the Seven Against Thebes, and finally the Trojan War and its aftermath.

The Returned Age. After the fall of Troy, the surviving heroes returned to their kingdoms or wandered the Mediterranean. Their descendants founded new cities and dynasties. This age eventually transitions into the historical age of Greek colonization, the Archaic period, and the rise of city-states like Athens and Sparta.

Frequently Asked Questions

What is the difference between Greek and Roman mythology? Greek and Roman mythology share most of their core stories, but the Roman tradition is a translation of the Greek onto native Italian religious practice. The standard Roman form is also the older in some cases: the Roman Mars is more central to Roman state religion than Ares is to Greek, and the Roman Vesta is more central than Hestia. The standard Greek form is also older and richer in most cases. For the modern reader, “Greek” and “Roman” names refer to the same gods; “Greek” is the form you find in the original poetry, “Roman” is the form that survived into the medieval and modern Western tradition through the Latin writers.

Is Greek mythology a religion? Greek mythology was the narrative framework of the ancient Greek religion, which was a real, practised faith with temples, priests, sacrifices, and festivals. The myths were not dogma but sacred stories that explained and supported religious practice. The religion itself declined under Roman rule (the closing of the Eleusinian Mysteries by Theodosius in 392 CE is the conventional end-date) and was eventually replaced by Christianity. The myths survived, in the Latin and Greek libraries of the Christian monasteries, as literature.

Where should I start reading? Three good entry points. For the heroic cycle, Homer’s Iliad (Richmond Lattimore’s translation, or Robert Fagles’ for a more recent reading) is the standard. For the cosmic mythology, Hesiod’s Theogony and Works and Days (Apostolos Athanassakis’ translation is the most useful for the modern reader). For the dramatic version, Sophocles’ Oedipus Rex and Euripides’ Bacchae are the central works. From the primary sources, the standard reference is Apollodorus’ Bibliotheca (Robin Hard’s translation, Oxford World’s Classics), which is the most complete surviving mythography. From modern retellings, Stephen Fry’s Heroes and Troy are accessible; Madeline Miller’s Circe and The Song of Achilles are the best recent novels; Rick Riordan’s Percy Jackson series is the most successful children’s series.

What about Greek mythology outside Greece? Greek myth spread throughout the Mediterranean after the conquests of Alexander the Great (336–323 BCE), and the Hellenistic period saw a blending of Greek and Eastern mythologies — Greek Aphrodite with Phoenician Astarte, Greek Apollo with Egyptian Horus, Greek Zeus with Babylonian Marduk. In Italy, the Roman tradition adopted Greek mythology wholesale. In the medieval West, Greek myth survived in the Latin libraries, in the school-texts of the grammarians, and in the allegorical reading of the Metamorphoses of Ovid.

What is the most reliable edition of a given Greek myth? For any major figure, the standard scholarly edition is the Bibliotheca of Apollodorus, in the Loeb Classical Library edition (trans. J.G. Frazer, 1921) or the Oxford World’s Classics edition (trans. Robin Hard, 1997). For Homer, the standard Oxford critical edition is by T.W. Allen (1931), and the standard Cambridge commentary is the Cambridge Greek and Latin Classics series. For Hesiod, the standard Oxford edition is M.L. West’s Hesiod: Theogony and Works and Days (1988). The Loeb series (Greek text + facing English translation) is the most accessible to a reader with little or no Greek.

What about primary-source citations on these pages? Where the page makes a specific factual claim about an ancient source, the citation is to the standard edition in parentheses. Hes. Theog. is Hesiod’s Theogony; Apollod. Bibl. is Apollodorus’ Bibliotheca; Hom. Il. is the Iliad; Paus. is Pausanias. The standard English translations of these are listed in the reading list below.

Further Reading

Primary sources in English translation. For Homer, the standard translations are Robert Fagles (Viking Penguin), Richmond Lattimore (University of Chicago Press), and Robert Fitzgerald (Farrar, Straus and Giroux). For Hesiod, the standard translation is Richmond Lattimore (University of Chicago Press, 1959) or Apostolos Athanassakis (Johns Hopkins, 2004). For the Greek tragedies, the Chicago and Loeb series provide complete texts with English translation. For the Oresteia of Aeschylus, the Richmond Lattimore translation is the most-read. For Apollodorus’ Bibliotheca, the Robin Hard translation (Oxford World’s Classics, 1997) is the standard; the older J.G. Frazer translation (Loeb, 1921) is still in print. For Pausanias’ Description of Greece, the W.H.S. Jones translation (Loeb, 1918) is the standard. For Ovid’s Metamorphoses, the Allen Mandelbaum translation (Harcourt, 1993) is the most readable. For Virgil’s Aeneid, the Allen Mandelbaum translation (Bantam, 1971) or the Robert Fitzgerald translation (Vintage, 1990) are the two standard modern versions. For Hesiod’s Catalogue of Women, there is no complete modern English translation; the fragments are in M.L. West’s Hesiodic Catalogue of Women (Oxford, 1985).

Modern scholarship. The standard scholarly reference for Greek myth is The Oxford Classical Dictionary, 4th edition (2012), edited by Simon Hornblower and Antony Spawforth. The most useful general introductions are The Greek Myths by Robert Graves (1955, still in print and still the most-read single-volume introduction despite its age) and Timothy Gantz’s Early Greek Myth: A Guide to Literary and Artistic Sources (Johns Hopkins, 1993), which is the standard scholarly source for the transmission of the myths through the ancient sources. For the Homeric poems, the Cambridge Companion to Homer (2004) edited by Robert Fowler is the standard modern introduction. For the Greek religion, Walter Burkert’s Greek Religion (Harvard, 1985) is the standard scholarly treatment. For the modern reception, L. Jay Oliva’s The Oxford Handbook of Greek Drama in the Americas (2015) and the relevant chapters of the Cambridge Companion to Greek Mythology (2014) are the most useful.

Web resources. The Perseus Digital Library (Tufts University, perseus.tufts.edu) is the standard free online resource for Greek and Latin texts, with morphological analysis and English translations. Theoi.com is the most useful site for the iconographic sources. Theoi.com and Perseus together cover most of what a serious reader will need.

The Greek Mythology of the Afterlife

The Greek afterlife, ruled by Hades, was a shadowy realm that held a powerful grip on the Greek imagination. The Greeks did not have a single, unified doctrine of the afterlife, but several traditions existed side by side, each reflecting a different aspect of Greek religious thought.

The Homeric vision, preserved in the Iliad and the Odyssey, presents the underworld as a grey, shadowy place where the souls of the dead, called shades or psychai, wander as pale images of their former selves. They have no memory, no identity, and no joy, and the great heroes of the past are seen as small, fluttering ghosts, far less glorious than they had been in life. The ghost of Achilles, when visited by Odysseus, famously declares that he would rather be a slave in the world of the living than a king in the world of the dead.

The Mysteries, particularly the Eleusinian Mysteries in honor of Demeter and Persephone, offered a different vision. The initiates of the Mysteries were promised a blessed afterlife, and the secret rituals of the Mysteries were designed to provide a glimpse of the divine. The Orphic Mysteries, based on the teachings of Orpheus, taught that the soul was divine and trapped in the body, and that through purification and initiation, the soul could be released from the cycle of rebirth and live with the gods.

The philosophers offered yet another vision. Plato developed the doctrine of the immortality of the soul, which would become one of the most influential ideas in Western thought. The soul, for Plato, was a divine spark imprisoned in the body, and the goal of philosophy was to free the soul from the body and return it to the divine realm of the Forms. The mystery religions and the philosophical schools thus offered a vision of the afterlife that was far more hopeful than the gloomy Homeric vision.

The Greek Pantheon: An Overview

The Greek gods can be grouped into several broad categories, each with its own character and its own role in the divine economy.

The Olympian gods were the principal deities of the Greek state religion, the gods who dwelt on Mount Olympus and who were the central figures of the great panhellenic festivals. They were the gods of the city, of civilization, of the political order. The major Olympians were Zeus, Hera, Poseidon, Demeter, Athena, Apollo, Artemis, Ares, Aphrodite, Hephaestus, Hermes, and Dionysus. Hades was sometimes included, although he dwelt in the underworld rather than on Olympus.

The chthonic gods were the gods of the earth and the underworld, the gods who were associated with the fertility of the soil and the realm of the dead. They included Hades and Persephone, as well as Hecate, the goddess of magic and witchcraft, and various nymphs and spirits. The chthonic gods were worshipped with different rituals than the Olympians, with sacrifices offered at night and at pits in the earth.

The primordial beings were the gods who existed before the Olympian order, the gods who were the origins of the cosmos. They included Chaos, the yawning void; Gaia, the earth; Ouranos, the sky; and the Titans, who ruled before the Olympians. The primordial beings were not worshipped directly, but they were the subject of much mythological speculation.

The nature spirits were the gods of the wild, the gods who were associated with the natural world. They included the nymphs, the spirits of the forest, the springs, and the mountains; the satyrs, the goat-men of the wild; the Centaurs, half-man and half-horse; and various other spirits. The nature spirits were worshipped locally, in caves and groves, and they were the subjects of much of the folk religion of the ancient Greek world.

Greek Mythology and the Greek City-State

Greek mythology was not just a body of stories. It was the foundation of Greek civic religion, the system of beliefs and practices that held the Greek city-state together. Every city had its patron deity, and the myths about that deity were the city’s founding myths. Athens had Athena, and the myth of her contest with Poseidon was the founding myth of the city. Sparta had Artemis and Helen, and the myths about them were the founding myths of the Spartan constitution. Thebes had Dionysus and the myths of the house of Cadmus. Corinth had Poseidon and the myths of the sea.

The founding myths of the city were the basis for the city’s claim to greatness, and they were the source of its sacred geography. The Acropolis of Athens was sacred to Athena, and the Parthenon, her great temple, stood at its summit. The Altis at Olympia was sacred to Zeus, and the great temple of Zeus stood at its center. The Oracle at Delphi was sacred to Apollo, and the Pythia, the priestess of the oracle, delivered prophecies in his name.

The festivals of the city were the occasions on which the founding myths were reenacted and renewed. The Panathenaic festival in Athens, held every four years, was a celebration of the gift of the olive tree by Athena and the greatness of the city. The Olympic Games at Olympia, held every four years, were a celebration of the gift of the olive tree by Zeus and the unity of the Greek world. The Dionysia in Athens, held twice a year, was a celebration of the gift of wine by Dionysus and the renewal of the cycle of the seasons.

Greek Mythology in the Hellenistic World

The conquests of Alexander the Great in the 4th century BCE transformed Greek mythology from a regional tradition into a world religion. As Greek culture spread throughout the eastern Mediterranean and the Near East, the Greek gods were identified with the local gods of the conquered peoples. Zeus was identified with the Babylonian Marduk and the Egyptian Amun. Hera was identified with the Egyptian Isis. Apollo was identified with the Egyptian Horus. Aphrodite was identified with the Phoenician Astarte.

The Hellenistic period also saw the development of new mythological traditions, particularly the myth of the founding of new cities. The Greek kings who succeeded Alexander claimed descent from the Greek gods and heroes, and they used the myths to legitimize their rule. The Ptolemies of Egypt claimed descent from Heracles, and the Seleucids of Syria claimed descent from Apollo. The Attalids of Pergamon claimed descent from Telephus, the son of Heracles.

The Hellenistic period also saw the development of new literary forms, including the pastoral romance, the love elegy, and the philosophical dialogue, all of which drew on the Greek myths for their themes and their imagery. Theocritus, the inventor of pastoral poetry, used the myths of Daphne, Polyphemus, and other figures in his poems. Callimachus, the greatest of the Hellenistic poets, used the myths of Apollo and Artemis in his hymns. Apollonius of Rhodes wrote the Argonautica, a retelling of the Jason myth that became one of the great epics of the Hellenistic period.

Greek Mythology in the Roman World

The Romans adopted Greek mythology wholesale, identifying their own gods with the Greek ones and absorbing the Greek myths into their own religious tradition. Jupiter was identified with Zeus, Juno with Hera, Mars with Ares, Venus with Aphrodite, and so on. The Greek myths were retold in Latin by Ovid, Virgil, Horace, and many other Roman poets.

The Roman poets did not simply translate the Greek myths. They transformed them, infusing them with the Roman sense of order, of duty, and of pietas. Virgil’s Aeneid, the great national epic of Rome, tells the story of Aeneas, the Trojan hero who fled the burning city of Troy and traveled to Italy to found the line of the Roman kings. Ovid’s Metamorphoses, a long poem in fifteen books, retells the Greek myths from the creation of the world to the apotheosis of Julius Caesar.

The Roman version of the Greek myths was the version that was transmitted to the medieval and modern worlds. The Roman gods, rather than the Greek ones, were the gods of the medieval imagination, and it was through the Roman versions that the Greek myths reached Shakespeare, Milton, and the great writers of the modern age. The phrase “Mount Olympus” comes from the Greek, but “Mars” and “Venus” and “Mercury” come from the Roman.

The Survival of Greek Mythology

The Greek myths survived the fall of paganism, the rise of Christianity, and the dissolution of the Roman Empire, and they continue to shape the modern world. The myths were preserved in the libraries of the Christian monasteries, where monks copied the Greek and Latin texts. The myths were read and retold by the poets of the Renaissance, who saw in them the model for their own literary ambitions. The myths were rediscovered by the philosophers of the Enlightenment, who saw in them the origins of human thought. The myths were adapted by the Romantics, who saw in them the expression of the human spirit.

In the 20th and 21st centuries, the Greek myths have been retold in countless works of literature, art, and film. The novels of Mary Renault, Madeline Miller, and Stephen Fry have brought the myths to a wide popular audience. The films of Steven Spielberg, Ridley Scott, and Louis Leterrier have retold the myths for the screen. The video games of God of War, Hades, and Assassin’s Creed Odyssey have brought the myths to a new generation.

The Greek myths are still being retold, reinterpreted, and reimagined by each new generation, and the stories have not yet stopped being the language in which the West talks to itself about heroism, love, fate, and the divine.

The Greek myths continue to shape how we think about heroism, love, fate, and the divine. They remain a living vocabulary for the human condition, and they are still being retold, reinterpreted, and reimagined by each new generation.

For the next steps, start with the Olympian gods, the Greek heroes, the monsters and creatures, or the Trojan War. For the modern afterlife of these stories, see our guide to Greek mythology in modern culture.