Primarch - Primarch Project: The massive scientific effort to create the primarchs before the start of the Unification Wars in the 30th Millennium was known as the Primarch Project. It is unknown exactly when the project began but Perturabo would later estimate his own birth to be the year 792.M30, which gives an approximate date for the project's end, though he was referring to his arrival on Olympia.The means by which the Emperor crafted 20 individual superhuman genomes using His own arcane Perpetual genetic code as the base without resorting to the use of cloning is unknown to present Imperial science. There was a 2-stage process involved: first, the Emperor extracted a subset of His own DNA to act as the foundation for a pure, undifferentiated primarch gene-stock template. The pure primarch gene-stock was then further differentiated into the 20 separate genetic templates that would serve as the individual primarchs' genomes.The data concerning the original engineering of the individual primarch strands was later analyzed by a Raven Guard Apothecary and a magos genetor of the Mechanicum during the Horus Heresy. They discovered that certain of the individual primarchs' samples had gene sequences deliberately deleted from the base, "pure" primarch genome, while other samples showed the addition of clearly non-Human DNA. Intriguingly, the genome of the primarch listed as "Subject VI" had added canine-like DNA. Although it is not clear whether the sample numbers corresponded to the actual primarchs of the Space Marine Legions of the same number, this could explain the wolf-like affinity of Leman Russ and the unexpected feral mutation of many Space Wolves Astartes into the Wulfen.It is believed by modern Imperial scholars that there was more than just physical manipulation of the genetics involved in the creation of the primarchs, and that the Emperor called upon many techniques of psychic sorcery derived from the Warp to shape the extraordinary abilities and unnatural charisma of His transhuman gene-sons.It is also now known that sometime during the Age of Technology, the man who would become the Emperor had travelled with several of His fellow Perpetuals, including Alivia Sureka, to the world of Molech, a Knight World only a few light years distant from Terra, in a one-way spacecraft. Sureka watched as the Emperor entered a secret Warp Gate present on Molech, where He bargained with the powers of the Immaterium to gain new abilities and knowledge, including most likely the techniques needed to create the primarchs. Sureka was later tasked by the Emperor with remaining on Molech to guard the Warp Gate and keep others from using it until His armies returned millennia later to conquer it for the nascent Imperium of Man during the early days of the Great Crusade.The Emperor's use of this knowledge meant that the primarchs were intended to be spiritually as well as physically engineered and may explain why they possessed so much personal magnetism and charisma beyond what even their enhanced genetics would predict. But such arcane techniques also meant that the primarchs were unusually vulnerable to the effects of Chaos since their souls would shine so brightly in the Immaterium and draw the attention of daemonic entities like moths to a candle flame.This is why the Emperor carefully inscribed arcane glyphs of protection on the primarchs' gestation capsules and crafted the most powerful Gellar Field ever made around the gene-vault deep beneath the Imperial Palace in the Himalazian (Himalayan) Mountains where they were created.Unfortunately, this protection proved insufficient, for the Chaos Gods learned of the Emperor's plans and the existence of the Primarch Project. They decided they had no wish to see His attempt to weaken their power succeed by extending His new order of reason and scientific progress across the Human-settled worlds of the galaxy.