Celestial
The war of the Eight Old Gods and their allies against the two Nameless Ones.
The two nameless beings were hostile, and Corigon retreated to their celestial siblings. War began, but not war as we understand it. Cosmic fighting that defies human comprehension ensued, and during this time many higher beings came into existence, some the product of other higher beings and others ex nihilo. Tagaats/Tagatz, known as the Singer, suggested a trap for the two foes. They created from themselves a Cosmic Serpent, a being capable of manipulating time. The Serpent helped the Eight Old Gods eventually outsmart the Two Innominata, and they were able to bind the parasites behind a cosmic veil. This was in 3102 BCE of our calendar, and for years peace would be maintained.