The Progenitor Era is a fan-derived division of continuity that takes place during Prehistory. It was the time when the Progenitors were at height, building the Great Network of Hyperspace Gates, Sajuuk and many other. Most likely Progenitor Era spanned from unknown time up till circa -490 GSY, when Progenitor Mothership broke apart, the last known date of Progenitor existance.