The Australopithecus' evolution in east Africa.
The primordial Ohel first rise from the deep tunnels of Jiatingshijie(in the YD-232 galaxy), initially quadrupedal arthropods that would eventually become the highly ceremonial Oheliah. Presumably they grew up alongside the precursors of the Alten species, but, with poor records and staunch opposition from Empyreans, this is impossible to determine.
The Oheliah, with fairly limited resources and only rudimentary spacefaring vessels establish the first of their countless temples upon the moon of Jiatingshijie.
The Alten first start falling ill, and their bolstered immune systems lead to the creation of numerous superviruses, diminishing other populations of other races across the globe.
The first stories of the nekomata arise, and the Oheliah, being ever prying, take note, finding a distinct liking for such tales, and adopt them for their own mythologies. Of course, much unlike humans at the time, the Oheliah possess the means of making myth into reality. In the following years, the arthropods sequenced countless concepts, creating first a cat, and then a human, and from there, the two were interlaced, combined to create Mau Prime. Ironically, this makes the Oheliah the first to create the kemonomimi, though given the distance betwee, this never became relevant.
Marked as year 0 in the AE measurement. The people that would serve as the foundation of the Empyreans leave Earth for reasons unspoken. Upon landing on Roq, they were accosted by 'dragon knights'.
Year 30 AE. The first alien brain sample found in an asteroid was discovered. The mold was degraded, but intact enough for study.
Empyreans discover a broken down space ship that seems to resemble a Mayan temple. Inside they discover a gigantic and unearthly blob of genetic information that leads them to testing the genetics and learning that it was a species closely related to the Predregiusa.
Year 74 AE. Queen Luka Katashii of the Empire steals 14 Alten eggs and uses her own body as a surrogate. Thus starting the "Life Mail War."
Year 1 of PR(Posle Razrusheniya:Post Destruction)
16 PR
The Federation finally establishes a foothold in the core regions.
19 PR
Stromulaire is discovered, and while tensions are initially high, a diplomatic understanding was eventually found between Eidex and Federation forces, and since the two have become allies in the roughest, loosest sense.
27 PR
First contact is established with the people of Nekmundis- the mauren. Confusions flare due to how remarkably human the newly encountered species looks.
41 PR
Research efforts launch on Nekmundis, with hopes to figure out why the mauren look so human. Instead, what the scientists found was a number of crumbling, ruined 'temples', filled to the brim with 3 meter(~10 ft) tall statues of these 4-armed, 4 legged carapace-laden hominids, with their inner most pair of hands placed together either in reverence, or solemness. The team presumed the temples to be at most thousands of years old, as the power still ran, at the time. Imagine their surprise when dating the materials led to the discovery that it was closer to millions of years old. Through talking with the locals, they learned that these 'Veshch' are known as the 'Oheliah'.
170 AE / 90 PR
The Lifemail begin to conclude, Light is born. Federation soldiers withdraw from the region, Reports of the first contact are lost, and the Federation largely forgets about the Empyreans' existence.
171 AE / 91 PR
185 AE / 105 PR
The Empyreans founded the "Code Unit" which was a team of young adults to fight mechs if the Federation ever made any.
130 PR
131 PR
155 PR
Second contact is made with the Empyreans, the Federation, being ever-too trigger happy, opens hostilities with them.