882 DR


 * Demons defeat the devils and conquer Ascalhorn, which becomes known as Hellgate Keep. The elven kingdoms of Eaerlann and Ammarindar fall to the swarm of demons.
 * Kalgrathur Daycloaks, leader of the Nightfire Lances mercenary band, slays Uemer Vordryn, king of the realm of Maurmurra in the Vilhon Reach, and pronounces himself High Lord of that realm.


 * Nimoar the Reaver conquers Ulbaerag Bloodhand's tribe and settles on the site that would later become Waterdeep.
 * The dwarf realm of Ammarindar is overrun by lingering horrors unleashed by the Netherese of Ascalhorn.


 * The city of Zhentil Keep launches a military campaign to deal with the growing problem of renegade liches roaming the city at night (also known as the period of the "Night Plague").


 * Moon elf refugees from Eaerlann resettle Ardeep and rebuild the realm. A brief alliance with the humans dwelling along the Delimbiyr and the dwarves of the Forlorn Hills founders because of lingering suspicions about the role of humans in the fall of Ascalhorn, later to be known as Hellgate Keep. This alliance is dubbed the Fallen Kingdom (the same name already given to Phalorm), much to the confusion of later historians.