Changes

*[[Isstvan V]] - during the '''Horus Heresy'''{{Fn|9}}

*[[Battle of Terra]] - during the '''Horus Heresy'''{{Fn|11}}

*[[Fall of Sanctia]] - '''M36'''. [[Mortarion]] returns to lead his Legion in the planets fall.{{Fn|15}}

*The destruction of [[Hydra Minoris]] - '''M40'''. [[Typhus]] unleashes the [[Zombie Plague]] on the world.{{Fn|15}}