When the effects of the deification of the Emperor, the theological needs of the Adeptus Ministorum and the outright deletions and fabrications of Imperial history carried out by the Inquisition are added into the equation, the truth of the events surrounding the Horus Heresy could prove very shocking indeed to the people of the Imperium. The Horus Heresy occurred over ten thousand Terran years ago, a nearly unimaginable span of time as a result, it has become nothing more than a collection of often distorted or misunderstood legends and mythology to the average Imperial citizen of the Era Indomitus. While the below chronology is highly detailed, it should be noted that much of this information would be completely unknown to the average inhabitant of the Imperium of Man in the 41st Millennium.

Presented below is the Horus Heresy Chronology, an exhaustive listing of all notable campaigns and battles that occurred during the nine-year-long, galaxy-wide conflict known as the Horus Heresy in the early 31st Millennium.īy no means is this list complete, as much of the information presented in various canon sources is often ambiguous and even at times contradictory, as would be expected from events that occurred so long ago and involved such destruction and strife across thousands of light years and tens of thousands of worlds. The Eye of Horus, symbol of the Archtraitor and Warmaster Horus Lupercal For events prior to these please see Great Crusade Chronology

Horus heresy book 6 retribution