Editing 150,000 BCE

{{Status|Canon}}
{{Yearnav
|century=BCE
|previous1=9,000,000 BCE
|previous2=1,100,000 BCE
|next1=122,990 BCE
|next2=110,962 BCE
}}
==Events==
===Unknown===
*Circa '''150,000 BCE''', the [[Forerunner]]s are claimed by some records to have risen as the preeminent species in the [[Milky Way Galaxy]] by advancing technological discoveries gathered from the remnants left by prior ancient races. Believing themselves responsible for the lives of all those less advanced then they, the Forerunners initiate the [[Mantle]].<ref>'''[[Halo Encyclopedia (2009 edition)]]''', ''page 26''</ref>{{Ref/Note|This entry, originating from the ''[[Halo Encyclopedia (2009 edition)]]'', is of dubious accuracy in light of information from ''[[The Forerunner Saga]]'', in which the Forerunners are stated to have been spacefaring for millions of years (albeit having experienced a number of technological dark ages and large-scale record loss events over the course of this period) and that they held the Mantle since [[10,000,000 BCE]], having forcibly seized it from the [[Precursor]]s. However, the ''Encyclopedia'' notes that ''"all Forerunner era dates are approximate, based on available translation and scattered historical data"'', which provides a canonical explanation for the possible inaccuracies of this entry.}}
*[[Human]]ity is believed by the Forerunners to have "moved their [[Prehistoric human civilization|interstellar civilization]] outward along the galactic arm" around this time, possibly to escape Forerunner control.<ref>'''[[Halo: Cryptum]]''', "chapter 1", (''"She responded that to the best of Forerunner research, humans had indeed first arisen on Erde-Tyrene, but over fifty thousand years ago had moved their interstellar civilization outward along the galactic arm, perhaps to flee early Forerunner control. Records from those ages were sparse."'')</ref>

==Notes==
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