/tg/ Heresy Timeline

This page details people, events, and organisations from the /tg/ Heresy, a fan re-working of the Warhammer 40,000 Universe. See the /tg/ Heresy Timeline and Galaxy pages for more information on the Alternate Universe.

Pre-Heresy

mid-M30: The Unification Wars

After the Fall of the Eldar and the Birth of Slaanesh, the long warp storms that had blighted humanity receded. The Emperor began to unfurl his plans to unify the human race and extend its dominion to the stars, beginning by conquering Terra itself. Although much of the fighting would be undertaken by the Thunder Warriors, they would be supplanted by the Adeptus Astartes as the Emperor's armed reached out into space.

798.M30 to 005.M31: The Great Crusade

Following His victory in the Unification Wars, the Emperor launched an immense campaign to unite the scattered human race. His mighty Space Marine Legions would play the foremost role in the Great Crusade, but they were accompanied by the auxiliary formations of the Imperial Army. The Treaty of Mars in 805.M30 brought the Adeptus Mechanicum and the warhosts of the Taghmata Omnissiah into the Crusade.

The Great Crusade would end neither in victory nor defeat, but in treachery and civil war. The Warmaster Hektor Cincinnatus took up arms against the government of the Imperium and allied himself with the Ruinous Powers of Chaos, beginning a horrific war that would leave trillions dead.

005.M31 to 014.M31: The Hektor Heresy

Hektor's Traitor forces held the initiative at the start of the campaign. The Warmaster had seen to it that many of the Legions he expected to side with the Emperor were positioned near the rim of the Galaxy, and struck hard at the Loyalists still within reach. However, the courage and determination of the Emperor's forces held up Hektor's legions long enough that the Warmaster had to risk his whole campaign on a desperate gamble, or be crushed for sure by the arrival of the once-distant Legions. In the end, Hektor was slain by the Emperor, but he inflicted grievous wounds on the Imperium and her master.

Post-Heresy

The Great Scourging

The Void Angels, The Crusaders, Silver Cataphracts, and Steel Marshals are the big players in the Imperium's counter-offensive. Three of the Traitor Legions go down hard in big battles. The Gorgers are left behind as a rear-guard and face the full fury of the counter-attacking Loyalists, while the Life Bringers fight the Entombed, bolstered by Void Angels, at The Battle of Rai. The Bulwark face the Steel Marshals and Silver Cataphracts in a brutal battle known as The Crucible. Others flee and leave their homeworlds to get razed. The Mastodontii abandon Tisenjoch to the mercy of the Silver Cataphracts and Void Angels.

Imperial Reformation

Arelex Orannis reorganises the administration of the Imperium. Meanwhile, Darius Cyaxares persuades the Primarchs to break up the Legions Astartes into the Space Marine Chapters. The rules governing the Chapters are known at the Institutorum Astartes and are written by Thomas Gaudin (ethics), Gaspard Lumey (military organisation), and Darius Cyaxares (the Librarium).