Aegis

The aegis was born in the hidden years of Zeus's childhood. When the Titan Cronus swallowed his own children to cheat a prophecy, the goddess Rhea hid her youngest son in a cave on Crete, and there the infant god was nursed on the milk of a she-goat named Amalthea, while the armed Curetes clashed their shields outside to drown his crying. Amalthea was no ordinary beast. When one of her horns snapped off, Zeus filled it with fruits and made it the cornucopia, the horn of plenty that never empties. And when the goat died, or in sterner tellings when Zeus came of age and needed armour for his war against the Titans, her hide became the aegis: tough, shaggy, storm-dark and proof against any weapon. A darker tradition names the skin differently. The monster Aix, the Goat, was a daughter of the sun god Helios with the face of a Gorgon, so dreadful that the gods themselves fled from her. When the Titanomachy broke out, Zeus slew her and wrapped himself in her impenetrable hide, and from that day the Gorgon's face glared from the shield of heaven. In either telling, the meaning is the same: the aegis is the skin of something holy or monstrous, worn by the god who conquered it.

The object itself is described once and never forgotten. In the Iliad, when Hera arms for war and Zeus prepares his wrath, the aegis is called ageless and immortal, fringed with a hundred tassels of pure gold, each tassel worth a hundred oxen, a shield whose value cannot be counted in any earthly currency. Its power was double. Shaken gently, it sheltered. Shaken in anger, it broke men. The Greek word aigis also meant a rushing storm or hurricane, and the oldest Greeks heard the thunder in it: the aegis is the storm-cloud of the sky god, fringed with lightning, and when Zeus raised it over Mount Ida the heavens themselves went dark. Other gods bore other weapons. Zeus bore the thunderbolt and the aegis, one to strike and one to terrify, and poets gave him the title aigiochos, the Aegis-Bearer, as naturally as they called Athena grey-eyed or Apollo far-shooting.

The aegis saw its most terrible service on the plain of Troy. When the Greeks had driven the Trojans back to their city and Zeus resolved to punish them for the wrongs done to Achilles, he lent the aegis to Apollo. The god stood on the wall the Greeks had built around their ships, holding the tasselled shield of Zeus, and shouted, and shook it, and the courage ran out of the Achaeans like water from a broken jar. They fled in a mob, trampling one another, while the Trojans poured through the gap and the wall came down like a sandcastle before a wave. Earlier in the war, when Athena armed herself from Zeus's own stores to fight beside Diomedes, she buckled on the tasselled aegis, crowned with Strife and Force and cold Pursuit and the grim head of the Gorgon. And in the Odyssey, when Odysseus turned on the suitors in his hall, it was Athena who held the aegis aloft from the roof-beams, and the men who had feasted on another's wealth for three years ran screaming like cattle when a gadfly stings the herd. Wherever the aegis appears in Homer, the pattern holds: a god lifts it, and mortal hearts simply stop working.

After the age of the Titanomachy, the aegis passed from father to daughter and became the property of Athena, and it was she who made it famous. When Perseus cut off the head of Medusa, guided by Athena's mirror-bright shield, he brought the trophy back and gave it to his patroness, and Athena set the Gorgon's face upon her aegis, ringed with a border of living snakes. From that day forward the aegis and the goddess are inseparable. The great gold and ivory statue of Athena Parthenos that stood in the Parthenon wore the aegis across her breast with the Gorgon's head at its centre. Vase-painters drew it as a shaggy goat-skin cape fringed with serpents, thrown over her shoulders or swung across her left arm like a shield. The tragedian Euripides offered yet another origin, singing that the aegis was the skin of the Gorgon born of Earth herself, which Athena slew in the Giants' War and flayed to wear as a breastplate against the Titans' brood. And the historian Herodotus, ever curious about origins, claimed that the Athenians had copied the goat-skin aegis and the ritual dress of Athena from the garments of Libyan women, who wore fringed goat-skins dyed red and thonged into tassels. Whatever its birthplace, by the classical age the aegis was Athena's signature, as unmistakable as the owl on her shoulder or the olive tree she gave her city.

The aegis outlasted the gods who carried it. Roman poets gave it to Minerva, and Virgil's Cyclopes forge it in their volcanic smithy, hammering serpent-scales and setting the Gorgon's rolling eyes in gold for the wrathful daughter of Jupiter. Alexander the Great, who claimed descent from heroes, wore the Gorgoneion on his breastplate into every battle, trusting that the face which turned men to stone would turn aside arrows. Roman emperors followed him, and the Gorgon-faced shield marched with the legions from Hadrian's Wall to the Euphrates. Painters of the Renaissance and the Baroque rediscovered the image, arming their Athenas and allegories of Wisdom with the tasselled, snake-fringed shield. But the aegis had already escaped its picture and entered the language. To act under the aegis of a king, a nation or a cause is to act under its protection and authority, a phrase used in diplomacy and law to this day, inherited directly from the battlefield at Troy, where to stand beneath the storm-shield of Zeus was to be untouchable, and to face it was to be nothing at all. The aegis endures because it holds an old truth: real protection has never been a soft thing. The gods did not guard their favourites with gentleness. They guarded them with terror, and the terror was the aegis.