Cultural event
The kingdoms of Requiem experience a sudden swing in public opinion towards the practice and application of magic. Previously, it had been regarded as a dangerous tool to be wielded only by a select few. Now, the greater populace had come around to magic's wider utility, which resulted in a great boon of magical innovation.
Only Penance resisted the change, viewing this embracement of the arcane magics heretical. In 1002, they declared war on Cognance and Sigil in order to rebuke their heretical ways, but had no clear path to victory, resulting in an economic decline for the city over the next two centuries.