Editing Parthorum Xenocide (section)

===Osroene Empire===

The Parthorum Xenocide destroyed Osroene centers of learning and killed the great majority of that race's scholars.  Human savants only became interested in the history of the lost Empire long after its annihilation and have struggled to piece together its chronology.  It is clear, however, that the realm was long-lived and stable, and judging by the anti-Imperial revolts after the war the Osroene must have been accomplished in the art of ruling over a multi-species Empire.  Although the Xenos were not as advanced as the young Imperium, they possessed the Warp Drive and had used it successfully in the tranquil conditions of the Parthorum Stream.

Osroene physiology received more attention.  Space Marine Apothecaries carried out autopsies on battle casualties and studied prisoners of war before their termination.  [[Wilmut Sachs]], on secondment from the Brothers of Death, began a substantial work on the Xenos species before the completion of [[Heralds of Hektor|First Legion]]'s operations rendered the point somewhat moot.  His notes, while somewhat redacted by Imperial censors, remain available to high-ranking Imperial citizens due to the similarities and parallels between Osroene and human physiology.  Although a definitive link was not established, there is some evidence suggesting that the species resulted from deliberate and extensive tampering with human genetics late in the Dark Age of Technology, with the weak warp presence of the Osroene held up as a telling marker.  It is one of history's ironies that these Xenos were to benefit from a lack of psykers during the warp storms of the Age of Strife only to be undone, in part, by Astrotelepathy.