The Sacred Grove

Olympia was not a city but a sanctuary — a sacred precinct in the western Peloponnese dedicated to Zeus, king of the gods. Nestled in a valley where the Alpheus and Kladeos rivers meet, the Altis (sacred grove) contained temples, treasuries, and athletic facilities that drew visitors from across the Greek world.

The site's importance cannot be overstated. For over a thousand years (776 BCE to 393 CE), the Olympic Games held at Olympia were the single most important Panhellenic event, creating a shared identity among Greeks who were otherwise divided into rival city-states.

Origins in Myth

Multiple myths explain Olympia's founding. In one, Heracles established the games after completing his twelve labors, measuring out the stadium by walking 600 feet. In another, Pelops (son of Tantalus) won a deadly chariot race against King Oenomaus to claim the hand of Hippodamia, and the Olympic Games commemorated his victory.

The chariot race origin story was particularly favored at Olympia, where Pelops had a sacred shrine (the Pelopion) and was honored as a hero alongside Zeus.

The Wonder of the World

Olympia's Temple of Zeus housed one of the Seven Wonders of the Ancient World — Phidias's colossal gold and ivory statue of Zeus seated on his throne. Standing roughly 42 feet (13 meters) tall, the statue was so massive that ancient writers joked that if Zeus stood up, he'd lift the roof off the temple.

The statue depicted Zeus holding a figure of Nike (Victory) in his right hand and an eagle-topped scepter in his left. Visitors traveled from across the Mediterranean simply to gaze upon it.

The Olympic Truce

During the games, a sacred truce (ekecheiria) was declared across the Greek world. Wars were paused, armies stood down, and safe passage was guaranteed for athletes and spectators traveling to Olympia. This truce — sometimes lasting up to three months — was one of the few things that could unite the quarreling Greek states.

The games included running, wrestling, boxing, chariot racing, the pentathlon, and the fearsome pankration (a no-holds-barred combat sport). Only freeborn Greek men could compete, and victors received olive wreath crowns cut from the sacred tree of Zeus.

Quick Facts

Location: Elis, western Peloponnese

Sacred to: Zeus

Founded: 776 BCE (traditional date of first games)

Key Structures: Temple of Zeus, Temple of Hera, Stadium, Philippeion

Wonder of the World: Statue of Zeus by Phidias

Modern Status: UNESCO World Heritage Site; Olympic flame still lit here

Pelops, Oenomaus and the curse that began at Olympia

The chariot-race myth has a darker side than the founding legend suggests. Oenomaus, king of Pisa, had been warned that his son-in-law would kill him. Some versions add that he desired his own daughter Hippodameia. He challenged each suitor to a chariot race from Olympia toward the Isthmus, gave them a head start, then overtook them with horses given to him by Ares and speared them in the back. By the time Pelops arrived, a dozen or more suitors' heads were said to be nailed up at the palace. Pindar's Pelops prays to Poseidon, his former lover, and receives a golden chariot with winged horses. In the more common version, Pelops bribes Oenomaus's charioteer Myrtilus, who replaces the bronze linchpins of his master's chariot with wax ones. Oenomaus was thrown and killed. When Myrtilus later claimed his reward, Pelops threw him into the sea. As he drowned, Myrtilus cursed Pelops's line, and that curse runs through Atreus, Thyestes and Agamemnon at Mycenae.

Pindar's First Olympian Ode, written for the Syracusan tyrant Hieron's horse-racing victory in 476 BC, also refuses to repeat the story that Tantalus served his son to the gods. Pindar calls the tale slander and says Poseidon simply carried the boy off to Olympus. It is a rare case of an ancient poet openly correcting a myth he considered unworthy of the gods.

Other founders, and the women of Olympia

Olympia had more founding stories than any other sanctuary. Pindar's Tenth Olympian credits Heracles, son of Zeus, who after defeating King Augeas of Elis marked out the Altis and held the first games. Pausanias records a separate local tradition from Elis about another Heracles, the "Idaean" Heracles, one of the Cretan Dactyls who guarded the infant Zeus. In this version he raced his four brothers at Olympia and crowned the winner with wild olive. Pausanias adds that some said Zeus wrestled Cronus there for the kingship, and that Apollo outran Hermes and outboxed Ares.

Women had their own festival. Every four years the Heraia, a footrace for unmarried girls, was held in the stadium in honour of Hera. It was organised by a college of Sixteen Women, who also wove a new robe for the goddess. The runners wore a short tunic that left the right shoulder bare, and the winners received olive crowns and a share of the sacrificial cow. Married women, by contrast, were forbidden to watch the men's games on pain of being thrown from a cliff. Pausanias tells of Kallipateira (called Pherenike in some sources), who disguised herself as a trainer to watch her son compete. She was found out when she jumped the barrier, but was spared because her father, brothers and son were all Olympic victors. After that, trainers had to attend naked. Women could still win in the chariot races, since the prize went to the owner of the horses. The Spartan princess Kyniska became the first female Olympic victor, in the early fourth century BC.

What stood in the Altis

The Temple of Hera, built around 600 BC, is one of the oldest Doric temples in Greece and is older than the Temple of Zeus by more than a century. Its columns were originally wooden and were replaced in stone one by one, which is why they do not match. The Temple of Zeus, finished around 457 BC, carried sculptures that told Olympia's own myths. The east pediment showed the tense moment before the race of Pelops and Oenomaus, with Zeus at the centre. The west pediment showed the battle of Lapiths and Centaurs with Apollo raising his arm over the fight. The metopes showed the Twelve Labours of Heracles, including the cleaning of the Augean stables nearby.

Before the temple stood the great ash altar of Zeus, built from the remains of burnt thigh-bones mixed with water from the Alpheus. Seers of the Iamid family read omens from its fires, and Olympia was known for this oracle of Zeus. Near the stadium entrance stood the Zanes, bronze statues of Zeus paid for out of fines imposed on athletes who cheated. The first were set up after a Thessalian boxer named Eupolus bribed his opponents, and each statue carried an inscription naming the offender. Excavators also found Phidias's workshop, where the gold-and-ivory statue was made, along with a small cup inscribed "I belong to Pheidias."

Ancient sources

Frequently asked questions

Could women compete in the ancient Olympics?

Not as athletes in the men's events. But women could win the chariot races as owners of the horses, as Kyniska of Sparta did. Unmarried girls also ran in the separate Heraia.

What happened to the Statue of Zeus at Olympia?

Its fate is uncertain. A Byzantine tradition says it was taken to Constantinople and destroyed in the fire at the palace of Lausus around AD 475, while others think it perished at Olympia itself.

Where is the Olympic flame lit?

At the ruins of the Temple of Hera, using a parabolic mirror to focus the sun's rays. This ceremony was introduced for the 1936 Berlin Games and is not an ancient ritual.

Was Olympia a city?

No. It was a sanctuary controlled for most of its history by the city of Elis, with a long-running dispute with neighbouring Pisa over who should run the festival.