Changes

|010.M40

|The [[Orpheus Sector]] begins rebuilding after its devastating War of Faith. Libethra is gifted to the [[Angels Revenant]] for their role in the war. The "sleepers of Orpheus" gradually fade into myth and legend.

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|052.M40

|The [[Necron]] Olotep Dynasty awakens to find its planet [[Cocholos]] dead. The dynasty's Lords drive their warriors through twisting passageways and encounter the [[Daemon Prince]] [[Beublghor]], who had slaughtered the human population and hollowed out the core for his throne. Beublghor's forces crush the Necrons and take their heads as trophies.

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|101.M40

|The [[Star Phantoms]] home world of [[Haakonath]] is lost to an enormous [[Hrud]] migration, although around one third of the Chapter's forces are able to escape.

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|109.M40

|123.M40

|The "Threefold Curse": [[Battlefleet Calixis]] loses ''Fire of Heaven'' and two of the original ''Chalice''-class [[battlecruiser]]s fighting [[xenos]] in the [[Hazeroth Abyss]]. Two watch stations are also destroyed. No trace of the unknown xenos is ever found.

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|137.M40

|319.M40

|[[Evil Sunz]] [[warboss]] Badrok Gutgouga unifies the [[ork]]s of the Shattered Deeps and threatens a [[Waaagh!]] [[Imperial Guard]] [[Konig Armoured Regiments]] corner his forces at Lysmarchus and crush his forces in a gruelling seven-month campaign. Gutgouga's broken corpse is displayed on the spire of the Red Cathedral of Amraphel.

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|365.M40

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|389.M40

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|411.M40

|433.M40

|The High Autarch of the planet [[Krieg]] declares independence from the [[Imperium]]. [[Colonel]] [[Jurten]] of the Krieg 83rd turns the planet into an atomic wasteland to eliminate the heresy.

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|440.M40

|Pirate Lord Havax the Cruel terrorizes convoys along the [[Drusus Marches]] while his friends in the [[Lucid Court]] shield him from reprisal. Navy Admiral Halifax Stophes and [[Ordo Hereticus]] Inquisitor Medina grant First Lieutenant Calaphas Zanatov a ''Turbulent''-class frigate and a [[Warrant of Trade]], respectively, with the intent that the new [[rogue trader]] will hunt the pirate himself.

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|454.M40

|474.M40

|War Trader Zanatov ambushes Havlax the Cruel's battleship at 41 Pry. After a three-day battle, Zanatov mounts Havlax's corpse on his ship's power ram. Zanatov declines an offer of captaincy in the [[Imperial Navy]] and remains a [[rogue trader]], disappearing into the Maw.

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|485.M40

|The [[Alpha Legion]] invades [[Ghorstangrad]]. Hypnotic warfare activates the sleeper agents placed among the population and the [[Emperor's Swords (Ghorstangrad)|Emperor's Swords]] Space Marines. Within hours, the world is devastated and the Emperor's Swords are effectively destroyed. The Alpha Legion withdraws to the [[Eastern Fringe]] with loyalist [[gene-seed]] and plenty of new recruits.

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|550.M40

|The [[Alpha Legion]] and [[Night Lords]] instigate an uprising that destroys [[Grymm's Landing]], a [[Dark Angels]] recruiting world.

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|561.M40

|567.M40

|First mention of [[Darnath Lysander]] of the [[Imperial Fists]] in the [[Liber Honorus Imperial Fists]] after his victory at the [[Battle of Colonial Bridge]] on [[Iduno]].

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|580-591.M40

|The [[Orpheus Sector]] raises thirty-nine million soldiers to answer the call to arms for the [[Great Severan War]]. The [[Morros Lachrymal]] penitentiary is converted from mining to a penal legion training facility.

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|585.M40

|[[Darnath Lysander]] takes command of the Second Company of the [[Imperial Fists]] after capturing the [[Eldar]] cruiser ''[[Blood of Khaine]]''.

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|600.M40

|[[Ork]] [[warboss]] [[Garskrak]] picks a fight with [[Vior'la]] [[sept]]. The [[Tau]] lure his army into the plasma storm between Vior'la's twin suns, where he is incinerated.

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|617.M40

|619.M40

|The Decarchs of [[Decapolis]] conspire to replace [[Amarah]] as the capital world of the [[Orpheus Sector]]. The [[Ordo Hereticus]] uncovers the conspiracy while interrogating Celestarii cultists. The architects of the conspiracy are hunted down, purged, and put on show trial over the course of nine years. Authorities on Amarah enact punitive fines and restrictions on Decapolis, doing little to alleviate the unrest the conspiracy has fuelled.

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|643.M40

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|649.M40

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|675.M40

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|896.M40

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|901.M40

|The [[Mantis Warriors]] Space Marine Chapter lure the [[Dark Eldar]] reavers known as the '[[Slave Lords]]' into an ambush on [[Tranquility]].

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|917.M40

|The [[Imperial Navy]] founds [[Port Wander]] as a staging ground for investigations into the loss of vessels on the fringes of the [[Drusus Marches]].

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|924.M40

|949.M40

|[[Krieg]] officially returns to the rule of the [[Imperium]]. The [[Departmento Munitorium]] finds the planet's tithes in arrears and Krieg presents twenty fully-prepared regiments for immediate deployment.

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|989.M40

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|999.M40

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|Late M40

|Chaos forces steal the designs for the Infidel Heavy Escort en-route to [[Mars]] during the [[Monsk Conspiracy]]

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|}