-750 DR


 * Circa: The unexcavated part of Melairbode is occupied by powerful Netherese wizards who create a subterranean outpost whose name has been lost, although some scholars believe it to be the Sargauth Enclave. This area later becomes the third level of Undermountain.


 * Circa: Cormanthyr and Rystal Wood again come under repeated attack by the drow. The Twisted Tower grows twice over the next decade.