-1800 DR


 * Duergar and others invade Holorarar and Ultoksamrin in Deep Shanatar in the Kin Clashes. Shanatar falls, leaving only Iltkazar still standing.


 * The duergar Queen Duerra of Underspires ascends to godhood, becoming Deep Duerra.


 * Without Duerra's mortal leadership, the capital city of Dunspeirrin, City of Sunken Spires, declines for centuries.


 * The ensnarement and maze spells are invented by Netherese arcanist Valdick.