Board Thread:Warhammer 40k General Discussion/@comment-91.224.27.226-20131031140001/@comment-8881468-20131120133415

age of apostasy is m36, legions ceised to exist overall in m30/31

you find the canon sources in the horus heresy novels that prior to the heresy, 2 legions ceased to exist. at least one of them being killed by the space wolves (see burning of prospero novels)  (russ taling about every primarch having a role, and that his is that of eecutioner and that eradicating a legion has happened before)

or f.e. "the primarchs" anthology, especially the vulkan bit, where he meets 20 statues that look like the primarchs but does not recognize 2, as he has never met the

omegon was a twin from the start ;)

why expunge records: siple hint; most of the imperium does not know about chaos...

we will in fact, never know what happened as those legions are left in the dark for reasons of GW