"I was taking engravings from the wall of the Ruins of the Enchean Temple when I was approached by a Refugee who I assume had wandered away from the Great Way and had walked straight past my manservant.
"He was friendly enough and was well spoken so we talked for some time and then shared some repast. Eventually he asked me what I was doing.
"'Why cataloguing the peoples' and ages of the World' I replied, 'So that we might understand how the age we live in came to pass.'
"'Why does that matter?' he replied.
"I had no answer."
- Recollections of Dr. Yoonet the negligent
So utterly ended is the world of old that even those who lived most of their lives before the creation of the Disjunction barely remember it for it seems alien, unreal and almost irrelevant in the world as it stands.
What is known is that the Trinity were the three creator Gods who forged a world of light and growth. Their Church bestrode the world with centres of worship on every continent and priests advising every court. Other religions were nearly non-existent; heretical faiths relegated to tiny cults too small for the Misericorde to concern themselves with. Sorcery was harnessed in service to the Church, every Sorcerer raised from birth by the Misericorde and proclaimed as living saints, the mortal servants of the Trinity whose power served only to glorify the creators.
On the continent of Anicca the Iridican Empire's power was unmatched, the rule of its Imperial line absolute and ordained by the Trinity themselves. Only the free cities of the east were immune to its influence; the Emperors held in check by the wondrous mechanical artifices of the City and the expanse of the Erewhon desert.
Then the war began.
On Anicca the Arch-heretic arose; a Sorcerer who defied the Church and who, unlike those before him, rallied his fellow Sorcerers to his cause. For a year the lands trembled and the skies burned as the Trinity and the Sorcerers waged war one another. The Church and rulers of the world could do little more than look on as vast swathes of the world were laid to waste. Losing their rebellion and in desperation the Sorcerers launched one final attack on the Trinity at their stronghold of Mons Aeternae on the far side of the world and there deep within the arcane storms the Disjunction was born, its creation marking the end of the war, the fall of the Trinity, and the death of creation.
That was thirty years ago.
After the initial sundering of creation the Disjunction moved slowly at first; creeping forward imperceptibility over the world as the great and the good gathered to find ways to stay its advance. Emperors built great walls to stand against it, Sorcerers wove mighty magic's to slow it, Cultists sacrificed to it, but all their efforts were in vain and the rent in creation grew. The Disjunction began to sweep forward faster and faster consuming villages, cities and eventually entire kingdoms.
As the void swelled oceans drained away and the land was beset with earthquakes and storms as the influence of the Disjunction tore away at the structure of the world. When the people eventually realised those in control were unable to save them from the encroaching nothingness the orders and hierarchies of power began to fracture and when the mass migrations and collapse of the food supply began the world that was crumbled away in a tumult of anarchy and fanaticism.
Five years after the Disjunction was formed the sun stood still; halted high in the heavens and ensnaring the world in endless daylight, the natural order forever perverted by the the constant noonday. It was then that people realised that their world was truly ending and the time of discord began. Hopelessness made people leave their families and walk uncaring into the Disjunction, anger made people rise up against their rulers, and despair disintegrated the Church's influence, its message of salvation meaningless in a doomed world.
Since then the Disjunction has swallowed over half of all that was; never slowing or hesitating as it has unmade nations, continents and the heavens themselves. Now only Anicca remains, the last continent, existing beneath an eternal sun and surrounded by the infinite oblivion of the Disjunction. Fanatical cults contended for the faith of the remaining people, warlords battle for control of the lands furthest from the Disjunction and the sly and underhanded monopolise what resources remain.