Editing MedHammer 40,000 Locations (section)

===Citadel Primus(fmrly Inwit)===

Once this planet was a simple glacial world filled with primitive people called Inwit. The destiny of this planet was changed with the arrival of The Emperor's Son, Rogal Dorn. With his help they halted an Ork invasion, and transformed their barren world into the heart of a Interplanetary Empire. 

The glory found on Inwit would be lost during the Great Treachery of Lorgar. Perturabo, Rogal Dorn's Self-Proclaimed Rival, and Servant of Slaanesh kidnapped the entire population of Rogal's home to place in his demonic planet spanning fortress on Olympia. Rogal, for the first time in his life allowed his suppressed rage to get the better of him and he and his army moved to olympia leaving the Emperor in the hands of Alpharius. Following a brutal and long seige he learned that his people were slaughtered to a man and there was nothing in Olympia but Rogal's failure to protect both his home and his father. The Planet of Inwit lay barren and empty for centuries, with even the orks returning as Rogal Dorn struggled to come to terms with his failure.

During his penitential crusade, Rogal Dorn found his salvation through his passion for fortifications and construction. Convinced he was destined by his father to prepare the Imperium for the  Nightmares that were in store for it, he returned home to Inwit. And with those Fists who did not abandon him out of their love for Crusades, he completely transformed Inwit.

Inwit is a planet completely reformed in the image of its creator: his obsession with defense, his disdain for non-function, and his focus on perseverance and resiliance. All vestiges of its past were destroyed as the planet's crust and mantle were siphoned away, Building from the Planets core as a foundation, Rogal has poured the resources of the segmentum into the transformation of Inwit into the heart of his fortress. The Planet is dizying number of walls, killzones, fortifications, laboratories, factories, hydroponics labs, dungeons and batteries, and it is still being expanded. The Planet is now so large that at its surface, the gravity of the planet is 3 times strnger than Inwits, and can only be traversed by Dorn's Marines. Life on the planet is as cold, dour, and unfeeling as that of the Primarch himself. The trillions of workers and soldiers spend their entire lives meeting Rogal Dorns punctual and specific quotas. Should they fail to do so, then The Primarch disposes of them. The miserable residents of Citadel are the wardens of their own prison.