Editing Aprior Sector Timeline (section)

== M39 ==

;109.M39: [[Genestealers]] from [[Tyranids | Hive Fleet Colossus]] invade and subvert the world of Erewhon, and the [[Knights Inductor]] fleet is the closest [[Space Marine]] detachment available; their First Company destroys the Brood and evacuates the remaining populace.  A postmortem genetic analysis of the corpses reveals extensive alterations from human baseline; when the refugees are examined, no less than two thousand latent infected are detected, of whom approximately one in ten were caught early enough to be cured.  The Knights resolve to implement frequent genetic screening programs in worlds which they reform.

;Mid M39: The [[Adepta Sororitas]] Order of the Sacred Rose launches several Missionary Fleets to bring the light of the God-Emperor to the furthest reaches of the galaxy.  One fleet stumbles on the [[Aprior Sector]], and settles the Marion system, founding the Aprior Commandery.

;977.M39: [[Dark Eldar]] Kabal of the Hand of Fate raids the Sororitas Convent on Dvi-Marion, and kidnap several Sororitas Initiates before being repelled.

;978.M39: [[Eldar]] attempt to colonize the Maiden World of Chatur-Marion, where they are contested by the Order of the Sacred Rose.  The Eldar are fended off.

;998.M39: After repelling [[Necrons]] and decimating a Tomb before a full scale incursion could occur in a system not far from the outskirts of the Aprior Sector, it is discovered that several Knights were captured in battle after retrieving a helmet and its recorded vid feed in Knight Xerxes' last moments before he was teleported away.  From this point on all Knight Inductor forces practice extreme caution in their future encounters with the Necrons, to avoid losing more Knights.  
:Unbeknownst to the Knights Inductor, the Necrons that had planted the Pariah gene within their Primarch are pleased with the results their plan has borne, having encountered the Desert Fangs on Voralia long ago.  They begin to kidnap more Knights into mid M40 until they stopped for unknown reasons.