Athena — also Pallas Athena, Athene — is the daughter of Zeus and the Titaness Metis (whose name means "wisdom" or "cunning intelligence"). Before Athena's birth, an oracle warned Zeus that Metis would bear a child who would eventually surpass him. Zeus swallowed Metis whole. But Metis continued her pregnancy inside Zeus — and when the time came, Hephaestus split Zeus's skull with an axe (or, in some versions, Zeus himself split it open), and Athena sprang out fully grown and fully armoured, shouting her war cry, shaking her spear at the heavens.
This extraordinary birth encodes Athena's nature precisely. She is born from her father's mind — the product of pure thought made manifest — but she is not merely thought. She emerges armed, ready for action, fully formed. Wisdom, for Athena, is always already in the world. She does not need to descend from contemplation to action; she arrives in action. Her mother Metis — swallowed but not destroyed — continues to advise Zeus from within his own mind, making Athena literally the child of wisdom absorbed into power.
She is one of the three virgin goddesses (along with Artemis and Hestia) — the Parthenos, the Maiden, whose virginity is not merely sexual but represents her complete self-sufficiency and her freedom from the entanglements that bind other deities. Her greatest temple — the Parthenon on the Acropolis of Athens — takes its name from this attribute. The Parthenon housed Pheidias's great chryselephantine statue of Athena: forty feet tall, made of gold and ivory, her shield bearing the face of Medusa, her hand extended with a small figure of Victory. The most magnificent cult image in the ancient world, now lost.
Athens claimed Athena as its patron through a contest with Poseidon. Each deity offered the city a gift: Poseidon struck the rock with his trident and produced a saltwater spring (or, in some versions, a horse). Athena struck the rock and produced an olive tree. The gods judged Athena's gift more valuable — the olive provided oil for lamps, food, medicine and trade, and became the foundation of Athenian prosperity. Athens was named for Athena, and the olive tree she planted on the Acropolis was maintained as sacred for centuries.