Finnish Tradition (Kalevala)
Ilmatar
The virgin daughter of the air who, in the Kalevala's first rune, descends to the primeval sea, becomes pregnant by wind and wave, and on whose knee a duck lays the eggs from which earth, sky, sun, moon, and stars are made; mother of Väinämöinen.
The daughter of the air, living alone in the heavens before she descends to the sea (Kalevala, Rune 1).
Lönnrot's epic opens with the maiden of the air, long alone in the empty heavens, who descends to the sea. The east wind and the waves make her pregnant, and she drifts for seven hundred years, unable to give birth. A duck, searching for a place to nest, sees her raised knee as a grassy hillock and lays six golden eggs and one of iron there. When the knee grows hot, Ilmatar jerks it, the eggs fall and break, and their pieces become the earth below, the vault of heaven above, the sun from the yolk, the moon from the white, the stars from the speckled parts, and the clouds from the dark. Ilmatar then shapes the coasts, bays, and reefs with her body, and finally gives birth to Väinämöinen.

