Age of Unity

The Age of Unity, also referred to as the Age of the Gods, was the time before the Great Facture, when the cosmos were one. Though the Deep Waters were kept separate, the world was still one entity; creatures of Ignethon lived right alongside the denizens of Pandemonium, who were also living among the mortals. Every creature, great and small lived together.
This was a time of great growth and new life for the creatures of Wyrth, as the Progenitors crafted the energy of the cosmos and the material of the mortal world into being. Many of the sentient races came into being this way, from Dwarves, False Dragons, and Oni to Skyborn and Chimera. In time, Wyrth was teaming with life.
The Age of Unity ended when the Deep Waters refused to be held back, causing the Primordials to sacrifice themselves to sunder the realms into the separate cosmos they now are.