Historical Revision Unit
The Historical Revision Unit is a department of the Administratum, whose main employees are the servants known as Historitors who work within the Imperial Palace. Their job is to revise subversive records of history to a more reverent version.
Historicus is the title of the unit's head.
- 1: Codex Imperialis (Background Book) (1993) by Rick Priestley, page 48
- 2: White Dwarf 97 (UK), pg. 39, Index Astartes - Ultramarines
- 3: Draco (Novel) by Ian Watson, Chapter Eighteen