• c. -500 DR
  • In the North, Citadel Sundbarr is constructed by the dwarves of Delzoun. Like the future Adbarr to the north, the citadel is mostly subterranean, with only a few structures on the surface. »

  • -333 DR [Year of Humbling Havens]
  • Ascalhorn and Citadel Sundbarr accept human refugees from Netheril. As the Narrow Sea dries up, the dwarves begin the slow abandonment of Ascore. The elves of Eaerlann allow other Netherese refugees to settle in Ascalhorn. »

  • -329 DR [Year of Icefire]
  • Dwarves of Clan Shattered Shield of Citadel Sundbarr flee their mines and workings in the Ice Mountains due to the approuch of a group of renegade dwarves from Citadel Felbarr, believed to be afflicted with a disease known as the slaying slumber. They begin a titanic trek eastward across the High Ice to the kingdom of Dareth. »

  • 882 DR [Year of the Curse]
  • Demons and baatezu battle in the citadel of Ascalhorn. Triumphant demons stream forth, bringing about the fall of Eaerlann. Dwarves allow human refugees to settle in the surface strongholds of Citadel Sundbarr. »