Ogalthis Collapse

In the late First Cycle, the Dwarven capital city known as Vishnuk was destroyed when a water deposit broke, flooding the city. It was since renamed Vjakludjemed ("Flooded Past" in Dwarven). This event became known as the Ogalthis Collapse, and effectively lead to the removal of Dwarven Reign throughout Alindae. (Though it did not kill off the race.)