Omphalos
The omphalos, Greek for "navel," is the stone kept inside Apollo's temple at Delphi that the Delphians held to mark the exact center of the earth.
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In Practice
Pausanias, writing his tour of the sanctuary, describes it directly: a stone of white marble, no great size, which the Delphians themselves call the Omphalos and say is the middle of all the earth, a claim he notes that Pindar's poetry backs up. The object was a real, physical landmark inside the temple's inner chamber, not just a figure of speech for Delphi's importance. The reason the Greeks located the world's center at that specific stone is a myth Strabo records in his Geography: Zeus released two eagles, one from each end of the earth, flying toward each other at equal speed, and the point where their paths crossed was Delphi. Strabo adds that the omphalos itself carried the proof, a kind of navel visible in the temple, draped with fillets, with the likenesses of the two birds from the myth worked onto it. Pindar's own poetry gestures at the same picture without spelling out the myth behind it: his fourth Pythian ode places the Delphic priestess seated beside "the golden eagles of Zeus" when she gives her oracle, and elsewhere in the same poem calls Delphi "the central navel of well-wooded mother earth," language Pausanias treats as the ode confirming the Delphians' own claim. A second, unrelated tradition sometimes gets folded into the omphalos by modern retellings, but the ancient sources keep the two apart. Apollodorus's Library tells how Rhea, to save infant Zeus from his father, wrapped a stone in swaddling clothes and gave it to Cronus to swallow in the child's place; Apollodorus's own narrative never places that stone at Delphi. Pausanias does describe a stone answering to that story while touring Delphi, but it stands in a different part of the sanctuary from the marble omphalos: past the enclosure holding Neoptolemus's grave, a small stone that the Delphians anoint with oil daily and dress in unworked wool at festivals, which Pausanias reports "there is also an opinion about... that it was given to Cronus instead of his child." Ancient testimony, in other words, names two separate stones at Delphi answering to two separate myths, not one object doing double duty.
What exactly was the omphalos, physically?
A stone of white marble kept inside the inner chamber of Apollo's temple at Delphi. Pausanias, describing his own visit, says the Delphians called it the Omphalos and considered it the literal middle of the entire earth, and that Pindar's poetry supports that claim.
Pausanias, Description of Greece 10.16.3
Why did the Greeks believe Delphi marked the exact center of the world?
Strabo records the founding myth: Zeus set two eagles free, one from the eastern end of the earth and one from the western, flying at matched speed, and the point where they met in the sky was Delphi. He adds that the omphalos itself bore images of the two birds from that story, worked onto the stone the priests kept draped with fillets in the temple.
Strabo, Geography 9.3.6
Does Pindar's poetry actually mention the omphalos?
Yes, though not by explaining the eagle myth behind it. In the story of the oracle that warned Pelias to beware a man with one sandal, his fourth Pythian ode describes that warning as spoken beside "the central navel of well-wooded mother earth," naming Delphi by its navel-stone without ever stating why the site carries that name or what the physical stone looked like.
Pindar, Pythian Ode 4.70-4.75
Is the omphalos the same stone Rhea tricked Cronus into swallowing?
Not according to the ancient sources read together. Apollodorus tells the swallowed-stone story without placing it at Delphi at all, and Pausanias, touring Delphi, describes a stone popularly linked to that story in a different location from the marble omphalos: near Neoptolemus's tomb rather than in the temple's inner chamber. Ancient testimony keeps these as two separate stones, not one object with two myths.
Pausanias, Description of Greece 10.24.6
How was the swallowed-stone story itself told?
Apollodorus's Library says Rhea, wanting to save the infant Zeus from his father Cronus, who had been swallowing his own children at birth, wrapped a stone in swaddling clothes and gave it to Cronus in the baby's place, deceiving him into swallowing the stone instead.
Apollodorus, Library 1.1.7
Where Accounts Differ
- two separate stones, not one
- Modern popular retellings often treat the omphalos and the stone Rhea gave Cronus as the same object. Read together, Pausanias's own tour of Delphi keeps them apart: the marble omphalos sits in the temple's inner chamber (10.16.3), while the stone popularly linked to the Cronus story stands near Neoptolemus's tomb (10.24.6), a different location entirely -- and Apollodorus's narrative of the Cronus story never places that stone at Delphi to begin with.
Where This Appears
Sources
- Pausanias, Description of Greece 10.16.3
- Pausanias, Description of Greece 10.24.6
- Strabo, Geography 9.3.6
- Pindar, Pythian Ode 4.4-5
- Pindar, Pythian Ode 4.70-4.75
- Apollodorus, Library 1.1.7