40,000 BCE

Events that occurred in approximately the year 40,000 BC. 
== Events ==
* The Celestials experiment on several species of humans on the planet Earth. These experiments, combined with the humans' natural genetic variability, allowed for a higher potential of superhuman powers to manifest later on in their descendants. 
* In order to prevail in a war against an enemy empire, a rogue faction of the advanced Kree race visits numerous planets, genetically altering a number of sentient life forms in order to create exploitable biological weapons. The Kree select Earth as one of the planets to be visited, knowing of the Celestials' prior experiments there. Kree experiments give rise to a unique caste of the native humans called Inhumans, who will achieve superhuman powers if exposed to the Terrigen Mist. They construct the Diviners, containment devices built to hold Terrigen Crystals. The Diviners will only open if an Inhuman brings them to the ruins of a Kree city built beneath the planet's surface. The Kree hierarchy discovers the faction's illegal activities and the operation is abandoned. The Kree disperse from Earth, leaving behind six Diviners, the city, and the body of at least one of their deceased kin.
Category:Timeline
Category:Tens of thousands of years ago