Cadmus

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Cadmus is a figure of Greek legend: a Phoenician prince credited with founding the city of Thebes and, in one persistent tradition, with bringing the alphabet to the Greeks. He stands at the head of the Theban royal line, and his story is among the oldest of the Greek heroic genealogies — the kind that the Greeks told to explain where their cities, and their letters, had come from.

The narrative as the poets and mythographers transmit it runs in a few firm steps. Cadmus was a son of the Phoenician king Agenor and brother of Europa; when Zeus carried Europa off, Agenor sent his sons to find her with orders not to return without her. The search failed, and the Delphic oracle redirected it: Cadmus was to abandon the hunt, follow a particular cow, and found a city where it lay down. The cow led him to the site of Thebes. There a dragon — in most versions sacred to the war-god Ares — guarded a spring and killed his companions; Cadmus killed the dragon and, on Athena’s instruction, sowed its teeth in the earth. Armed men sprang up from the furrow. He set them fighting one another, and the five who survived, called the Spartoi, the “sown men,” became the founding nobility of Thebes. For the slaying he served Ares a term of penance, and was then given the goddess Harmonia as his wife, at a wedding the gods themselves attended.

A second tradition, older than the mythographers who systematized it, made Cadmus the bringer of writing. Herodotus reports that the Greek letters were introduced by Phoenicians who came with Cadmus, and that the Greeks for a long time called them phoinikēia — Phoenician characters — or Cadmean letters. The report sits close to a real historical fact: the Greek alphabet was in truth adapted from a Phoenician script in the early first millennium BCE. Whether any remembered person lies behind the name is unrecoverable; what scholarship can say is that the legend preserves, in the form of a founder, an actual line of cultural transmission from the Levant to the Aegean. The “Cadmus” who carries the alphabet is best read as that fact personified.

His later story darkens. The house of Cadmus became a byword for inherited catastrophe — his grandson Pentheus torn apart, his daughters Semele and Ino and Agave each destroyed in turn — and at the end Cadmus and Harmonia were themselves transformed into serpents and carried off to a blessed land. Ancient writers sometimes read the snake as a closing of the circle, the dragon-slayer joined to the thing he had killed.

Cadmus belongs less to cult than to the explanatory work of myth. He is the answer the Greeks gave to two questions about their own past: where their cities were founded and where their letters were learned. That the second answer turns out to be broadly correct is one of the quieter surprises in the study of Greek legend.

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