Changes

The Eye of Terror is not a natural phenomenon, as it was created by the [[Old Ones]] during the [[War in Heaven (Necron)|War in Heaven]], as they fought the [[Necrons]]. The Necrons would then later seal the Eye of Terror close, closed but it was later reopened by the [[psychic]] shock wave that accompanied the birth of the fourth [[Chaos God]], [[Slaanesh]], during the [[Fall of the Eldar]].{{Fn|13}}

Sometime at the dawn of the Imperium but before the [[Horus Heresy]], the Eye of Terror was discovered by Imperial explorers in what was presumably a fairly remote region of the galaxyGalaxy, and Imperial scholars named is ''Cygnus X-1''. The Eye didn't come into prominence until it was later discovered by the [[Word Bearers]], who had arrived officially for conquest, but actually on a personal mission for renewed faith, and it was here that they discovered the [[Chaos|"Primordial Truth"]]. It would later be visited by the [[Emperor's Children]] and the [[Iron Warriors]], intent on an expedition within the eye for the Eye, in search of the Angel Exterminatus. Before embarking upon this journey, [[Perturabo]] had formally named it the Eye of Terror.{{Fn|7}}{{Fn|8}}