We know very little about that era, but I think they would be like us, just with incredibly advanced technology (granted we live in Omega Ewigkeit as shown by Omega Ewigkeit aligning with our history).
In time certain people began to manifest strange powers that could not be explained by science.
They had Starfleets like the Starfleet Aditya that could cross the cosmos, and all over at reign over the galaxy, think kinda like the Imperium from Warhammer.
Though we would have to wait untill the Pre-Throne Era gets a release, which it would sometime after Avesta is over, which has an average fo 4 weeks per chapter, due to releasing half a chapter, than a glossary over that half, the other half, and another glossary.
It will be 16 chapters and we will be getting Chapter 8 part 1 tomorrow.
Taikyoku always existed, people just didn't have acess to it of even know of its existance, the Throne was accidently created (we don't know how yet) and is used as a tool to call upon Taikyoku. I think that this "Origin Coordinite" that Mithra was seeking out on the Starfleet Aditya has something to do with Taikyoku, maybe it is the Singularity, but we really don't know.
As I said, we only had a short description of the Era in History of Pantheon, and can really only make assumptions.
When you put it like that, a part of me feels that they created the Throne as a more-or-less normal technological tool and it accidentally connected with the Taiji of the universe. That's just me at least.
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