Cronus was the youngest of the twelve Titans, born to Gaia, the broad-breasted Earth, and Uranus, the starry sky that arched over the world. His brothers and sisters were Oceanus, Coeus, Crius, Hyperion, Iapetus, Theia, Rhea, Themis, Mnemosyne, Phoebe, and Tethys, a generation of divine beings who shaped the cosmos before the gods of Olympus existed. But Uranus was a cruel father who hated his own children. He forced them back into Gaia's womb, burying them alive within the earth, and refused to let them see the light of day. Gaia, groaning beneath the weight of her imprisoned children, fashioned a great sickle of flint and begged her sons to avenge her. Only Cronus, the youngest and most cunning, had the courage to take the weapon.

One night, while Uranus lay with Gaia, Cronus crept upon him unseen. He seized the sickle and struck, severing his father's genitals and casting them into the sea. From the blood that fell upon the earth sprang the Erinyes, the Furies who punish oath-breakers, and the Giants. From the foam that gathered around the severed flesh arose Aphrodite, the goddess of love and desire. Uranus, mutilated and overthrown, withdrew forever and cursed his son, prophesying that Cronus too would be overthrown by his own child. With this act, Cronus became king of the Titans and ruler of the universe, ushering in the Golden Age, a time when mortals lived without toil and the earth gave forth its fruits in abundance.

Cronus took his sister Rhea as his queen, and she bore him six children: Hestia, Demeter, Hera, Hades, Poseidon, and Zeus. But the curse of Uranus haunted him. He remembered the prophecy that one of his children would overthrow him, and he resolved to prevent it by swallowing each infant whole as it was born, consigning his sons and daughters to live in the darkness of his belly. Rhea, watching her children disappear, grew desperate. When she was about to give birth to Zeus, she fled to Crete and hid in a cave beneath Mount Ida. There, with Gaia's help, she gave birth in secret and left the infant to be raised by nymphs, guarded by the Curetes who clashed their spears against shields to drown out the baby's cries.

Rhea returned to Cronus carrying a stone wrapped in swaddling clothes. Cronus, suspecting nothing, swallowed it as he had swallowed all the others. Meanwhile, Zeus grew to manhood in the cave on Crete, nourished by the goat Amalthea. When he was strong enough, he returned to confront his father. With the help of Metis, the Titaness of cunning counsel, Zeus prepared a potion that forced Cronus to vomit up the children he had swallowed, first the stone and then his five brothers and sisters, who emerged alive and full-grown. The stone was set up at Delphi as a wonder for all to see, and the six divine children declared war upon their father and the Titans. The war lasted ten years and shook the cosmos, but the young gods prevailed. Cronus was cast down into Tartarus, and Zeus took his place as king of the gods.

The legacy of Cronus is written into time and language itself. The Romans identified him with Saturn, the god of agriculture, and celebrated his festival, the Saturnalia, with feasting and gift-giving that would later inspire Christmas traditions. The planet Saturn and the day Saturday bear his name. The Greek word for time, "chronos," became associated with him, giving us "chronology," "chronic," and "synchronize." And the image of the old king devouring his children, painted by Goya and written about by poets for centuries, remains one of the most powerful symbols of the tyrant who destroys what he should protect, the father who consumes his own future, and the truth that time devours all things, even the gods themselves.