In ancient Greek mythology and religion, Eos is the goddess and personification of the dawn, who rose each morning from her home at the edge of the river Oceanus to deliver light and disperse the night. She opened the gates of heaven for her brother Helios, the sun, and was imagined in poetry and art as a radiant, often winged goddess driving a horse-drawn chariot across the sky. Her most common Homeric epithets are Rhododactylos ("rosy-fingered") and Erigeneia ("early-born"). Her Roman counterpart is Aurora.
Adapted from Wikipedia, "Eos" · CC BY-SA 4.0
I.Family
In the standard Greek cosmogony Eos is the daughter of the Titans Hyperion and Theia, and the sister of Helios, the sun, and Selene, the moon. Rarer traditions name the Titan Pallas as her father, or make her a child of Nyx or even of Helios himself.
By her husband Astraeus she became the mother of the Anemoi, the wind gods Boreas, Zephyrus, Notus, and Eurus, as well as of the morning star Eosphorus, the stars, and, in some accounts, the justice goddess Astraea. By the Trojan prince Tithonus she bore Memnon and Emathion; by Cephalus some traditions assign her Phaethon, Hesperus, or other children.
II.Goddess of the dawn
Each morning Eos rises from Oceanus, opens the gates of heaven for Helios, and brings light to mortals and immortals. In Homeric poetry she often accompanies the sun through the day rather than departing at sunrise alone. Her chariot is drawn by horses named Lampus and Phaethon ("Firebright" and "Daybright" in the Odyssey).
Homer repeatedly calls her rosy-fingered and early-born; later poets and vase-painters show her winged, crowned, and clothed in saffron, pouring dew from hydriae or preceding Helios as the morning star flies with her.
III.Lovers and abduction myths
A major group of myths concerns Eos's love for mortal men, whom she pursued and sometimes carried away. According to Apollodorus, Aphrodite cursed her with passion for mortals after Eos lay with Ares. Among her lovers are Orion, Cleitus, Cephalus, and above all Tithonus.
Eos asked Zeus to make Tithonus immortal but forgot to request eternal youth; he aged without dying and was eventually shut away, in some versions transformed into a cicada. She also abducted the Athenian Cephalus while he hunted; after bearing him sons she returned him to his wife Procris, with tragic consequences that vary by author.
IV.Memnon and the Trojan War
By Tithonus Eos bore Memnon, king of Aethiopia, who fought for Troy and was slain by Achilles. Mourning her son, she dimmed the light of Helios, carried Memnon's body home—sometimes with the aid of Hypnos and Thanatos—and obtained a form of immortality for him from Zeus. Her role mirrors that of Thetis for Achilles: a goddess mother pleading for a mortal son who dies on the battlefield.
V.Cult and identifications
Despite her antiquity and Indo-European pedigree, Eos received little independent cult in classical times; no securely attested temples or altars survive. Wineless offerings (nephalia) to her and other celestial deities are recorded at Athens. Her Roman equivalent is Aurora; she was also associated with Mater Matuta. Later tragic poets sometimes identified her with Hemera, the personification of day.