According to myth and legend, Lilith was the first woman, created before Eve. She was Adam’s absolute equal.
In the Garden of Eden, long before the eating of the apple, the Holy One created the first human beings — a man named Adam, and a woman named Lilith. Lilith said, “We are equal because we are created from the same earth.”
— from the medieval text Alphabet of Ben Sira, 23a-b