Chaos Daemons - Dawn of the Imperium, M30-M33: A new order begins to unfold, a force that wishes to forge a galactic empire able to rule the stars. Such goals run counter to the desires of the Chaos Gods, for the power each of them seeks is absolute.Creation of the Astronomican (ca. M30) - The formless murk of the Warp is penetrated by a psychic energy beacon that stabs outwards from Terra and across the galaxy. Invisible in realspace, the beacon of the Astronomican directed by the mind of the Emperor serves as a psychic landmark -- a constant navigation point that enables safer Warp travel for the starships and Navigators of the Imperium. For the Dark Gods it is hateful to gaze upon, its constant beam bringing unwelcome Order to the infernal seas of Chaos.The Great Game Begins Anew (ca. M30) - Glutted upon the souls of the Aeldari, the Dark Prince expands his domain. Such a bold move is met with great opposition, and the Chaos Gods turn their attention fully to the Great Game. So it is that as the Warp Storms of the Age of Strife die down, the Emperor of Mankind is able to lead the united forces of Terra and Mars outwards into the galaxy on the Great Crusade. Many scattered human worlds are reclaimed by the Emperor and His Legions of Space Marines, and enslaved planets freed from the shackles of domination. The Imperium is officially born, and the Emperor is reunited with his lost Primarchs one by one. Meanwhile, Tzeentch allies with Nurgle and Slaanesh to gain ascendency over Khorne, yet it is short lived; the Blood God's immense rage at being usurped leads him to reclaim his lost territory within the Realm of Chaos, and more besides.The Horus Heresy (ca. 005-014.M31) - The Emperor returns to Terra, leaving the continuation of the Great Crusade to his Primarchs. Each leading a mighty Legion of Space Marines created in their own image, they continue to bring glory and new human worlds to the Imperium in His absence. Amidst the triumphs, the Chaos Gods plant seeds of corruption throughout the Space Marine Legions. Horus Lupercal of the Luna Wolves Legion, the Warmaster of the Imperium, is the greatest of the Primarchs to fall to the temptations of Chaos. A masterful strategist, Horus sways many of his brother Primarchs to join his nascent rebellion against his father's Imperium. A full half of the Legiones Astartes -- 9 Legions -- follow Horus into damnation, and the Daemonic legions are deployed to aid them by the Dark Gods. The galaxy is plunged into a civil war that will blacken the Imperium forever.Scouring of Omegath (998.M31-899.M32) - Tzeentch grants the Lord of Change Ix'thar'ganix, known as the "Slayer of Destinies," a glimpse of a child born upon the world of Omegath who would mature to become a powerful oracle. Ix'thar'ganix craves the power of this child, and uses his magic to open a Warp Rift upon Omegath. For twenty solar days, the Daemonic legions he has gathered sweep across the planet seeking the oracle-to-be. After spreading madness and destruction through Omegath's population, Ix'thar'ganix finds the prize he sought and steals the boy's Warp-born abilities of foresight.The Ravening Storm (161.M32) - The mining colonies of Ichtar IX are cut off from the Imperium for nine centuries. When the Warp Storm recedes in the early 33rd Millennium, nothing remains of the billions of miners who had lived there, and naught attests to the unimaginable agonies the populace endured at the hands of Chaos' Daemonic legions.The Cursus of Alganar (Unknown Date.M32) - Upon the Desert World of Tallarn, a dark stone is unearthed covered in strange carvings. Shortly after, the Aeldari of Craftworld Biel-Tan attack the Desert Raiders of the planet in force. As the battle rages, a full-scale Daemonic invasion erupts from the location of the stone, known as the "Cursus" to its discoverers. The Astra Militarum of Tallarn and the Aeldari of Biel-Tan combine forces against the Daemon legions, banishing them from the planet in a last-ditch assault. The Cursus is subsequently buried deep beneath a rockcrete barrier.Greed Inherent (454.M33) - The Rogue Trader Apollyon Maestrich-Nova founds a mining operation that produces fantastic wealth. Glaciers of glowing fire-diamonds are carved from the rocks and precious elements are sold to the nearby Reubic System. Apollyon becomes insanely wealthy, but is corrupted and turns to Slaanesh's embrace. Only when his tainted coin has circulated throughout every planet of the Reubic System does his grand design become clear. As Apollyon's moon eclipses Reubia's sun, all those who have shared in his greed are suddenly filled with an insatiable, cannibalistic hunger, leaving those who succumb to it open to Daemonic possession. An astropathic cry for aid reaches the Imperium, and Grey Knights arrive in strength to save Reubia itself from armies of once-human invaders. The rest of the star system falls to anarchy, however, as Slaanesh claims his due.The First True War of Veonid (882.M33) - A legion of Khorne is attracted to the thunder of guns on the weapons-testing planet of Veonid. Their invasion soon ensures that the prototype guns are used in earnest.