This was the earliest Primordial Period when three thousand Demon Gods governed three thousand Dao. But three thousand Dao were not enough to support the structure of a world, so, they cultivated the Acquired Demon Gods.
These Acquired Demon Gods, by comprehending the Innate Dao, by induction and deduction, figured out various branches and minor paths, also known as the endless minor paths, to supplement the inadequacies of the world's framework.
At that time, it entered the heyday of the Primordial Period.
What happened afterward, Chang'e wasn't sure, only that among the Innate Demon Gods, the Golden Crow Clan established the Heavenly Court, unifying the myriad realms in name. Many Demon Gods withdrew from the management of Dao; it was at that time that beings like the Marquis of Wind and Master of Rain vanished from everyone's sight.
Then a great war ensued, the Heavenly Court collapsed, and the near ancient era began.