Humans
From Project::OSiRiON wiki
While not indigenous to this area of space, the presence of the human race has certainly been a story of succes. The human sphere of influence spans over 50 parsec and contains dozens of colonized worlds. The true origins of the Human Race remain somewhat shrouded in mystery as the location of Earth and the circumstances of the Exodus have fallen victim to the amnesia of history.
The only fact that is generally agreed upon is that the event took place approximately five millenia ago, in the year 1 AE (After Exodus).