• -372 DR [Year of Owls' Watching]
  • The elves of Eaerlann found Ascalhorn. »

  • -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. »

  • 515 DR [Year of the Frivolous Exchange]
  • Humans from Ascalhorn resettle Besendar's Blockhouse and rename it Everlund. »

  • 590 DR [Year of the Turning Leaf]
  • Elf and human wizards from Ascalhorn, Eaerlann, Evereska, Silverymoon, and Myth Drannor raise a mythal over the Eaerlanni city of Glaurachyndaar, thereby establishing Myth Glaurach. »

  • 671 DR [Year of the Shrouded Slayer]
  • Travelers become frequent between Ascalhorn and Silverymoon, and trade opens up with the dwarves of the North. »

  • 694 DR [Year of the Ominous Oracle]
  • The Circle of Flames and the wizards of Windsong Tower begin spiriting magical items and tomes (including the Scrolls Ardentym and the Keryfaertel) to safety. Many end up in Ascalhorn and Silverymoon in the trusted hands of colleagues there (in the cases of wizards not moving there themselves), though some wizards take off with their secrets for parts unknown over the next twelve years. »

  • 766 DR [Year of Yearning]
  • The Brothers of the Black Hand, a cadre of Bane-worshipping evil wizards exiled from Ascalhorn, steal High Mage Ederan's Staff of Silverymoon and a number of priceless magical artifacts; the items are never recovered, though most of the Black Hand wizards are found and executed. »

  • 820 DR [Year of the Roving Tyrant]
  • The arcanist Wulgreth, namesake of the notorious Wulgreth of Nethril, summons the first devils to Ascalhorn. »

  • 866 DR [Year of the Blessed Morning]
  • Tanisell "the Cloaked", the future seventh High Mage of Silverymoon is born in Ascalhorn. »

  • 880 DR [Year of Unfettered Secrets]
  • Human wizards, influenced by the fey'ri, summon the first demons to Ascalhorn. »

  • 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. »

  • Moon elf refugees from Eaerlann resettle Ardeep and rebuilt the realm. A brief alliance with the humans dwelling along the Delimbiyr and the dwarves of the Forlorn Hills founders because of lingering suspicious about the role of humans in the fall of Ascalhorn, later to be known as Hellgate Keep. This alliance is dubbed the Fallen Kingdom (the same name already given to Phalorm), much to the confusion of later historians. »

  • The dwarf realm of Ammarindar is overrun by lingering horrors unleashed by the Netherese of Ascalhorn. »

  • 883 DR [Year of the Giant's Oath]
  • Wulgreth of Ascalhorn flees Hellgate Keep and takes refuge in the ruined city of Karse. While attempting to tap the immortal power of the dead god Karsus, he is slain by his servant Jhingleshod. The magical energies unleashed upon his death create the Dire Wood and transform Wulgreth of Ascalhorn into a lich. »

  • 1221 DR [Year of the Frozen Flower]
  • The demons of Hellgate Keep link the catacombs beneath Ascalhorn with the deep tunnels of Ammarindar. »