ca. 900s.M30 Liberation of Alpha Shalish - It was during the XII Legion's campaign in the Golgotha Sector that the World Eaters' 203rd Expeditionary Fleet encountered the Lacrymole-infested world of Alpha Shalish. Remembrancers and Imperial artist-scribes of the 203rd Expeditionary Fleet recorded the auspicious events surrounding the liberation of the xenos-controlled world of Alpha Shalish. The Imperial forces, spearheaded by World Eaters Space Marines, burst into the mounded Lacrymole cities with righteous fury, cleansing the planet of their foul, man-eating kind with extreme prejudice.
ca. 900s.M30 Ghenna Massacre - As the Great Crusade wore on, there were increasingly those in the Imperial military who whispered that Angron was mad and his Legion had followed with him into madness. These whispers became openly voiced as widespread discontent and demands for censure of the Primarch when stories began to circulate that Angron had ordered his Apothecarion to conduct widespread psycho-surgery and implant the so-called Butcher's Nails cranial implants in his Astartes once the infamous Ghenna Massacre came to light. This action, undertaken at Angron's instigation, resulted in the entire planetary population of the world of Ghenna that had rebelled against its installed Imperial Commander being wiped out in a single night of extraordinary bloodshed. The psychic screams of the dying were reported to have been audible by Astropaths half a sector distant.
ca. 900s.M30 Night of the Wolf - After the Ghenna Massacre, the Emperor was moved to act and called Angron before Him for reprimand. He sent Leman Russ and his Space Wolves Legion to Ghenna, intending for Angron to submit before them and then be brought back to Terra for judgement and censure. Russ warned Angron that the Emperor had ordered the end of such prohibited psycho-surgery like the implantation of the Butcher's Nails in the Legion. Though the Wolf King tried to talk sense into his blood-maddened brother, Angron refused to listen to reason. Eventually, with tensions rising on both sides, an inevitable confrontation took place. No one is exactly sure who started the melee, but Russ wisely chose to order his Legion to withdraw, as both Legions faced mutual annihilation if they continued their course. The World Eaters were later issued with orders to depart to the northern fringes of known space, there to harry and reave against xenos far from the Imperium's core worlds, where their uncontrolled savagery could be harnessed productively without risks to civilian populations.
921.M30 Keylek Genocide - Early in the Great Crusade the Luna Wolves encountered the hostile alien reptilian race known as the Keylekid on the world of Keylek. The grotesque Keylekid were greatly skilled in the arts of combat, and rose against the XVI Legion angrily the moment the 63rd Expeditionary Fleet made contact. This genocidal campaign proved to be a long, bloody, and miserable affair for the Luna Wolves.
921.M30 Emergence of Koorqosan - The lost world of Koorqosan, brought to Compliance a hundred Terran years previously and then enveloped by the Warp, reappears upon the immaterial waves of the Messier 16 Nebula. The world appears to have experienced the accelerated passage of time in reverse, providing a glimpse at the secrets of Mankind's earliest exploration of the stars.
922.M30 Discovery of Corvus Corax - Raised by prisoners on the mine-moon Lycaeus, Primarch Corvus Corax leads a revolution and renames his home Deliverance. When the Emperor arrives in the Principia Imperialis fleet, the two hold a secret conversation which lasts a solar day and a night -- after which Corax is left to subjugate the world of Kiavahr alone, and ultimately agrees to lead the XIX Legion. Corax quickly transformed his Legion in his own image and renamed them the Raven Guard.
927.M30 The Cryptosi Purgation - When an exotic, meta-dimensional strain of xenos thought to be the species later referred to in some accounts as the "Cryptosi" was encountered in the northern reaches of the galaxy, a sub-company from the Alpha Legion was sent to the Imperium's northern reaches to investigate atrocities that the Cryptoisi were said to have committed. This campaign appears not to have been committed to record, although contact with human colony worlds in that region was lost soon after, seemingly as a result of Legiones Astartes activity.
927.M30 Discovery of [REDCATED] - Records expunged.
933.M30 Third Temporaferrox Extermination - The Iron Warriors' 33rd Grand Battalion successfully conducted a xenocide campaign against the Temporaferrox xenos. Though they suffered 78% percent casualties, all of the xenos life-forms were destroyed. The Iron Warriors' High Command deems these losses acceptable.
939.M30 The Mystery of Novo Andruss - A force identifying as the "Ghost Legion" appears unheralded on the rebellious world of Novo Andruss. Uncharted psychic phenomenon are unleashed and then quelled in a brief but bloody conflict which brings the world back into Compliance, though superstition is heightened amongst the populace as a result.
941.M30 Compliance of 63-8 (Davin) - The Feral World of Davin is brought into Imperial Compliance by the Luna Wolves Legion. The primitive Davinite warrior tribes were allowed to remain mostly intact as they had impressed Horus with their courage on the battlefield and their willingness to learn to adapt to Imperial culture. The Luna Wolves departed after the surrender of the Davinites, taking with them their concept of the Warrior Lodge, which were quickly adopted throughout the Luna Wolves fleet. A detachment of the XVII Legion, the Word Bearers (then known as the "Imperial Heralds"), under the command of First Captain Kor Phaeron, was left to shepherd the people of Davin into the light of the Imperial Truth. The Imperial governorship of the planet was give to Commander Eugen Temba of the Imperial Army, a close friend and confidante of Horus.
942.M30 Colonisation of Gethsamaine - The world of Gethsamaine is found by Imperial Merchant Fleet Captains on the far edge of the Cyclops Cluster. It was accidentally discovered after a Chartist liner went off-course in an attempted passage of the void between M'Pandex and Zarnov. Gethsamaine was found to be a lush, primordial world of steaming rain forests filled with primitive flora, but where multicellular animal life had not yet developed. It was immediately identified as a prime location for human colonisation, and soon numerous Warp-arks filled with the teeming hives of the Segmentum Solar colonised the newly-discovered world. Gethsamaine was founded with the hopes of becoming the cornerstone of a new era of human expansion to further consolidate and exploit the nearby stars.
943.M30 The Melkeji Salvation - The Imperium encounters a civilisation subjugated by a parasitic alien race which feasts on human sentience. Breaking the strongholds of the parasite hosts, recorded as "the Ascended," the Word Bearers Legion bring Melkeji to Imperial Compliance.
ca. 945.M30 Battle of Sigma 51-7 (Sarosh) - Shortly after their entry into the Great Crusade, the 4th Expeditionary Fleet of the Dark Angels reached the orbit of the planet Sarosh (officially codified as Sigma Five-One-Seven), which had formerly been commanded by an officer of the White Scars Legion. The Saroshi -- ruled by a bureaucracy -- had recently expressed their interest in becoming part of the Imperium, and the Imperials were eager to allow them in, believing that these people seemed to express the same materialist beliefs as the Imperial Truth. But the Saroshi (without mentioning it to the Imperial expedition) secretly worshipped Chaotic entities in the Warp they called the Melachim, and saw the anti-religious stance of the Imperium's Imperial Truth as unsuppressed evil. The Lord High Exacter, the leader of the Saroshi bureaucracy, denounced Jonson and the Emperor to the Primarch's face aboard the Dark Angels' flagship, and Lion El'Jonson responded by ramming his blade, the Lion Sword, through the fanatical Saroshi leader's body. Unknown to the Dark Angels, the Saroshi had secreted a nuclear device aboard their shuttle, intending to assassinate the fleet's entire command structure, including Jonson; however, Luther and a junior Librarian named Zahariel managed to eject the shuttle into space, causing only minor damage to the flagship. After this incident, Luther, Zahariel and five hundred other Dark Angels were sent back to Caliban in disgrace, for allowing an enemy to get a nuclear device aboard the Primarch's flagship. They were ordered to oversee the recruitment of new Space Marines into the I Legion from the Calibanite population.