Changes

*In older source material—pre-dating the addition of the [[Rubric of Ahriman]] to the background—not all Thousand Sons were said to be [[psyker]]s, though all had sorcerous knowledge and various minor levels of magic ability. They operated in effectively the same way—individuals of great power supported by line troops—but for completely different reasons. In addition, earlier edition models and artwork made much use of the trope of [[Tzeentch]] gifting physical mutations upon his followers. This trope vanished from the background with the introductions of the Thousand Sons' distinctive visual design, their own unique miniatures and the concept of [[Rubric Marines]], but has since been reincorporated into the background as the [[Flesh-change]].

*In the novel ''[[A Thousand Sons (Novel)|A Thousand Sons]]'', it is stated that the Thousand Sons Legion is 10,000 strong by the time of the [[Burning of Prospero]].{{Fn|3h}} However numbers later provided by the [[The Horus Heresy (Game)|Forge World rulebooks]] stated their size to be 89,000-90,000.{{Fn|38p}} The subsequent [[Siege of Terra (Novel Series)|Siege of Terra]] novella ''[[Fury of Magnus (Novella)|Fury of Magnus]]'' shows even their post-Burning of Prospero strength to be 9,000.{{Fn|50c}}

==See also==