Bibliotheca Imperialis

Bella

The named engagements of M30 through M42 — Great Crusade compliance actions, the spinal events of the Horus Heresy, the Indomitus Era's recovery campaigns, and the long centuries of attritional war between. The Imperium remembers what it lost, what it kept, and where the names of the dead are read aloud each year. The traitor legions remember other things, in other places.

TIME OF ENDING · M41

The Battle of Helsreach

Third War for Armageddon · The Hive That Held

At the close of the Second War for Armageddon in 941.

TYRANNIC WAR · 745.M41

The Battle of Macragge

First Tyrannic War · The Behemoth's Tide

The Tyranids were, until the late seventh century of the Forty-First Millennium, a peripheral horror.

M41

The Fall & Liberation of Damnos

Necron Awakening · Sicarius's Failure · Sicarius's Vengeance

Damnos was an unremarkable ice-and-mineral colony when its mining operations broke through the seal of a long-dormant Necron tomb in 974.

M41 · 813 — 830

The Siege of Vraks

The Seventeen-Year Siege · Death Korps Hell · Apostate's Last Stand

Vraks Prime was, by any reasonable Imperial measure, not a world worth fighting seventeen years for.

M41 · 901 — 912

The Badab War

The Astral Claws Secession · Birth of the Red Corsairs

The Astral Claws Chapter, posted at the troubled Maelstrom Zone in the Badab Sector, had spent decades fighting on every front of a region of space that Imperial Command considered unrecoverable.

M41 · 444 — present

The Wars for Armageddon

Three Wars · Two Saints · One Warlord · Six Centuries of the Same Engagement

Armageddon was, before the wars made it something else, a forge-world of the Armageddon Sector — one of perhaps two dozen comparable manufactorum planets in the Segmentum Solar whose industrial…

HORUS HERESY · 006.M31

Isstvan V · The Dropsite Massacre

The Greatest Betrayal · Death of Ferrus Manus · The Black Day of the Imperium

The Isstvan V Dropsite Massacre took place in 006.

HORUS HERESY · 005.M31

The Burning of Prospero

The Censure · The Wolves at Tizca · The Bargain with Tzeentch · The Edict Broken Twice

Magnus the Red, primarch of the Thousand Sons Legion, was — by every Imperial measure that mattered before the Heresy — among the most accomplished of the Emperor's sons.

HORUS HERESY · 007.M31

The Battle of Calth

The Word Bearers' Knife in the Back · The Death of a Star · The Wound that Built the Codex

The Battle of Calth, in 007.

HORUS HERESY · 014.M31

The Siege of Terra

The Last Battle of the Heresy · The Duel That Ended Two Lives · The Wound That Built the Throne

Horus Lupercal had been the Warmaster of the Imperium for seven years when he turned, and by the time his fleet entered the Sol system seven years after that, he had spent the intervening time…

M41 · 999.M41

The Fall of Cadia

13th Black Crusade Climax · The Cadian Gate Breaks · The Rift Opens

Cadia's strategic importance had nothing to do with its population, its industry, its trade routes, or its agricultural output.

M42 · Era Indomitus

The Devastation of Baal

Hive Fleet Leviathan vs the Sons of Sanguinius · The Indomitus Relief · The Largest Assembly of One Gene-Line Since the Heresy

Baal, in the late-millennium Imperial cartographic notation, is a death-world.

M41 · Late Time of Ending

The Octarius War

Tyranids vs Orks · The Inquisition's Gamble · The Two Predators

Inquisitor Kryptman of the Ordo Xenos faced a strategic problem at the close of M41: Hive Fleet Leviathan was advancing into the Imperium's eastern fringe and had to be diverted or absorbed by…

M42 · Era Indomitus

The Plague Wars

Mortarion vs Guilliman · The Devastation of Ultramar · Two Brothers Fight Again · The Argument That Did Not End

Following the disastrous conclusion of the Horus Heresy and the Siege of Terra, Mortarion fled into the chaotic depths of the Eye of Terror.

M32 · 544 — 546

The War of the Beast

M32 Apocalypse · The Second Greatest Ork War · The Imperial Fists Nearly Lost

The Beast was an Ork Warlord whose physical size exceeded any documented greenskin in Imperial history.

M36 · c. 855 — 989

The Reign of Blood

Vandire's Tyranny · The Age of Apostasy · The Founding of the Sisters

Goge Vandire was an unusually ambitious Administratum official who, in the political chaos of late M36, seized both the Administratum and the Ecclesiarchy in a slow administrative coup.

M41 · 742 — 745

The Damocles Gulf Crusade

The Imperium's First Major Confrontation with the T'au · Shadowsun's Vindication

The T'au Empire's Second Sphere of Expansion in the late M41 had brought the species into conflict with multiple Imperial border worlds.

GREAT CRUSADE · LATE M30

The Ullanor Triumph

The Greatest Crusade Victory · Horus Made Warmaster · The Emperor's Departure

Ullanor was the largest Ork empire of the late Great Crusade — a multi-system polity dominated by Warboss Urrlak Urruk whose forces had been resisting Imperial Compliance for decades.

HORUS HERESY · 005.M31

The Wound on Davin

The Anathame · The Serpent-Lodge · The Beginning of the Fall

Davin had been brought into Compliance during the Crusade.

HORUS HERESY · 006.M31

The Signus Campaign

The Blood Angels Diverted · Sanguinius vs Ka'Bandha · The Daemon's Trap

Horus, having committed to the Heresy, faced a strategic problem: the Blood Angels were among the loyalist Legions most capable of breaking his early offensive.

HORUS HERESY · 013.M31

The Battle of Pluto

Alpharius Killed · Dorn's Bloody Hour · The Solar System Breached

As Horus's fleet closed on Sol in the closing year of the Heresy, the outer Solar defence — the chain of fortified positions Dorn had spent years preparing — bore the first impact.

AGE OF APOSTASY ERA · 32nd Millennium

The Battle of the Fang

The Crimson King's Revenge · The Siege that Broke Both Sides

Three centuries after the Wolves had burned Tizca to the foundations of its glass spires, Magnus the Red brought his ledger back to Fenris to settle it.

HORUS HERESY · 008-013.M31

The Path of Heaven

WHITE SCARS · HERESY-ERA GAUNTLET-RUN

The Path of Heaven was Jaghatai Khan's signature operational arrangement during the Heresy's middle years (approximately 008-013.

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