1386 DR


 * Portions of Toril's 'sibling world,' Abeir, violently exchange places with parts of Chondath and western Chessenta.
 * Wide expanses of the Sea of Fallen Stars' seabed collapse into the Underdark. The resulting water level is 50 feet lower than normal. Waters of the Vilhon Reach empty out into the lowered sea, revealing several Jhaamdathan ruins.
 * The Arnrock volcano in the Lake of Steam erupts violently, wiping out the halfling settlement that had sprung up on its long dormant crater.


 * Genasi from the Abeiran land of Shyr set about creating a kingdom on their new planet.