The Goblin Wars began in 896 AC and ended in 901. There’s more information in the Highland Gazetteer.
| 525 | Aaron Paul founds the Order of the Astronomers in Crosspoint Bay |
| 557 | Aaron Paul and the first monks of the Order of the Astronomers arrive from Crosspoint |
| 578 (May 15) | The Astronomers christen Castle Kristagna |
| 587 | Aaron Paul dies |
| 593 | Taurus, warrior of the Astronomers, turns to shadow with Alazar and Measure |
| 739-769 | Isaacs’s mnemonic magic adopted by Astronomers |
| 795 | Clock tower contracted with the Dwarves |
| 837-839 | Isaiah studies and teaches at Kristagna |
| 861 | Abiram Forney becomes Master Astronomer |
| 863-867 | Dungeon excavated by Dwarves |
| 869 | Jethroh Parthane becomes Abbot |
| 871 | The Miracle of the Aquarian Pool |
| 873 | Clock tower built by Dwarves |
| 882 | Aaron Courlander arrives from Lisport |
| 884 | The Pact of Four: Aaron Courlander, Philip Carlisle, Zachary Maunder, Frances Nelson. |
| 887 (June 15) | Peace with the Knights of Illustration |
| 891 | William Joel Cambel becomes Captain of the Guard |
| 894 | Aaron Courlander becomes Lieutenant |
| 896 (May 6) | Castle Kristagna and Stelopolis overrun by goblins |
The descriptions and notes all assume that the adventurers are exploring the ruins in the autumn of 991 AC, 95 years after the castle was overrun.