First Ancestral Race

The First Ancestral Race are mysterious, god-like progenitor aliens, never seen during the course of the series, who created the beings known as "Seeds of Life" to sow the galaxy with life forms. Two such Seeds of Life were Adam and Lilith, the only two Seeds that we know of. Adam and Lilith were transported in massive vessels dubbed Moons, Adam travelling in the White Moon, Lilith in the Black Moon. Adam's mission was to give rise to the Angels who would have become the dominant species on the planet upon which she landed. Lilith's mission, was to arrive at her destination and spread LCL, the "primordial ooze" from which what humans would consider "normal" terrestrial life forms would evolve, culminating (after millions of years of evolution) into humans.

However, two Seeds aren't meant to land on the same planet. Adam was the first Seed of Life to occupy the Earth, but 4 billion years ago the Black Moon containing Lilith violently collided into Earth, in the event later dubbed "First Impact".

The First Ancestral Race also created the artifacts known as the Spears of Longinus. A Spear was paired with each Moon as a countermeasure should a Seed abandon its mission, become too powerful, or to take the initiative should two Seeds occupy the same planet.