|Sometime after the birth of the Universe||First appearance of "life" in the Milky Way galaxy. Parasitical Star vampires, the first self-aware entities, appear. They feed upon stars, eventually shortening their existence by billions of years, disregarding the forming planets.||Codex: Necrons (3rd Edition), pg. 24: "The Beginning of Time"|
|Unknown||Codex: Necrons (3rd Edition), pg. 24: "The Necrontyr"|
|Unknown||The Necrontyr eventually find the Old Ones and, filled with envy, wage war against them. The Necrontyr are eventually out-manoeuvred by the Old Ones and exiled to the edges of the galaxy and into their own homeworld.||Codex: Necrons (3rd Edition) pg. 24: "The Necrontyr" and "War in Heaven"|
|Unknown||Twisted by a hatred towards all life and looking for weapons to use against the Old Ones, the Necrontyr create a body for the star vampire feeding upon their own sun, creating the Night Bringer. They create more bodies for other star vampires, turning several star vampires into the C'tan, called Yngir by the Eldar. The ever-hungry C'tan discover their ultimate delicacy: Souls. The C'tan known as the Deceiver tricks the Necrontyr with the promise of immortality and the C'tan turn all living Necrontyr into Necrons, feasting upon their souls.||Codex: Necrons (3rd Edition), pg. 24: "War in Heaven";|
pg. 28: "The Birth of Death";
pg. 30: "The Betrayal of the Necrontyr"
|Unknown||The God War begins. The Old Ones are forced to retreat into besieged bastions. The C'tan and their servants, the Necrons, dominate the Galaxy. The "young races" are treated like cattle by their new terrifying masters, the C'tan. Life begins to grow more and more scarce in the galaxy. The C'tan, manipulated by the Deceiver, begin to slaughter and to consume each other. The desperate Old Ones influence many warlike young races like the Eldar, fostering their ability of using the energies of the Warp, the Achilles' heel of the C'tan.||Codex: Necrons (3rd Edition), pg. 25: "Necron Ascendancy"|
pg. 28: "An Age of Slaughter"
pg. 31: "War Among the Gods"
|Unknown||Faced with only 4 surviving C'tan (Night Bringer, Deceiver, Void Dragon, and Outsider) the young races are able to strike back, re-claiming the galaxy. The C'tan, united for the first time in millions of years, begin their work to ward the material universe from the Warp dimension forever.||Codex: Necrons (3rd Edition), pg. 26: "The Old Ones Strike Back"|
|60 million years BC (approx)||The Pandora's box of Warp-magic opens. Several predatory Warp-entities appear, hunting and consuming psykers. Trying to defend their last remaining strongholds from destruction the Old Ones create the Krork (Orks) and the Jokaero, but it is simply too little, too late. First among the Warp-denizens, the Enslavers appear in a locust-like fashion.||Codex: Necrons (3rd Edition), pg. 26 "Apocalypse Looms"|
|60 million years BC (approx)||Faced with a rapidly diminishing food-supply because of the Enslavers and the counter-offensives of the young races, the C'tan entomb themselves in 4 different planets, which are devoid of all life, to avoid the Enslavers. Other planets also harbour their Necron armies. Their plan is re-appear when the galaxy is full of life again to "harvest it" anew. The Night Bringer, en route to the planet Pavonis, is ambushed by a combined armada of the young races, who were tipped off by the Deceiver. It manages to reach its tomb, but loses important assets, including its space vessel, the Bringer of Darkness. The Deceiver is the last C'tan to entomb itself.||Nightbringer (Novel) by Graham McNeill, Prologue;|
Codex: Necrons (3rd Edition), pg. 26 "The C'tan Entombed"
pg. 31 "War Amongst the Gods"
|Unknown||Many minor creations of the Old Ones survive and slowly evolve on their own, including "comical tree-beasts" who will slowly evolve into Humanity. Perhaps because of compassion, or simply reluctant to extinguish another life-form, the Eldar decline to wipe out these mon-keigh. Unknown to almost anyone, Humanity's future generations will produce Untouchables (at a rate of less than one in a billion) because of ancient DNA manipulations of the "Devoured Ones". All surviving and future races are imprinted with a fear of death because of the slaughters and powers of the Night Bringer, with the sole exception of the Orks.||Codex: Necrons (3rd Edition), pg. 28: "An Age of Slaughter"|
pg. 9: "Shadow Games";
Codex: Assassins (2nd Edition), pg. 20
|ca. 60,000 BC||The Cabal builds a star port on Eolith (42 Hydra Tertius).||Legion Part Two Chapter Two|
|8,000 BC||A gold ring depicting a bow-armed centaur is crafted in Persia the year before the Emperor's birth. It will eventually enter the Emperor's possession, who in turn gives it to Horus.||Horus Rising Part Three Chapter One|
|8,000 BC||The Emperor of Mankind claims he was born in central Anatolia around this time.||Realms of Chaos: The Lost and the Damned pg. 174|
|8000 BC - 1400 AD||*Birth of the Chaos Gods Khorne, Tzeentch and Nurgle.