Clytemnestra B.C.) by the Dokimasia Painter. After Helen went (or was taken) from Sparta to Troy, her husband, Menelaus, asked his brother Agamemnon for help. Greek forces gathered at Aulis. However, consistently weak winds prevented the fleet from sailing. Through a subplot involving the gods and omens, the priest Calchas said the winds would be favorable if Agamemnon sacrificed his daughter Iphigenia to the goddess Artemis. Agamemnon persuaded Clytemnestra to send Iphigenia to him, telling her he was going to marry her to Achilles. When Iphigenia arrived at Aulis, she was sacrificed, the winds turned, and the troops set sail for
Tethys (mythology) Tethys (mythology) In Greek mythology, Tethys (; ), was a Titan daughter of Uranus and Gaia, sister and wife of Titan-god Oceanus, mother of the Potamoi and the Oceanids. Tethys had no active role in Greek mythology and no established cults. Tethys was one of the Titan offspring of Uranus (Sky) and Gaia (Earth). Hesiod lists her Titan siblings as Oceanus, Coeus, Crius, Hyperion, Iapetus, Theia, Rhea, Themis, Mnemosyne, Phoebe, and Cronus. Tethys married her brother Oceanus, an enormous river encircling the world and was by him the mother of numerous sons, the Potamoi and numerous daughters, the Oceanids. According