993 DR


 * Prince Chelimber of the Principality of the Snarling Boar feuds with the Wizard of the Crag, and commissions the mage Taskor the Terrible of Irieabor to kill him. The mages clash in a massive spell-battle, in which summoned water elementals run free and flood the land, causing the ruin of the Principality.


 * The flooding by water elementals creates the Marsh of Chelimber.


 * Lizardfolk tribes of the northern Serpent Hills migrate east into the Marsh of Chelimber.