ca. 1181 - Ul'dahn thaumaturges develop the Trader's Spurn, an alchemical concoction with the power to reanimate the dead. With this devastating weapon, they lay waste to Sil'dih.
ca. 1190 - After their triumph over Sil'dih, emissaries from a thriving Ul'dah board Lominsan-built ships and set sail for the Near East to establish trade.
- With the expansion of maritime trade, the number of Ul'dahn merchants taking the land-based eastern routes begins to decline, and Ala Mhigo struggles to sustain itself on the meager tolls.
ca. 1224 - Sasagan III is imprisoned and ousted as ruler of Ul'dah in a political coup. Baldric Thorne is crowned sultan, marking the beginning of the Thorne dynasty.
ca. 1267 - Baldric Thorne's only daughter Edvya disappears from the palace. Fearing the worst, the sultan orders a city-wide search for the princess. The Sultansworn eventually discover Edvya with the assistance of a young girl of low birth. The incident would later be remembered as the national holiday, "Little Lady's Day".
ca. 1270 - Ul'dah relocates its capital atop of the ruins of fallen Sil'dih.
ca. 1272 - The enslaved hecatoncheire giants of Copperbell Mines revolt against their masters when the enchantments on their helms wear off, and the miners force a cave-in of the lowest depths to seal the giants within. The mine is shuttered under the pretense that its veins have run barren.
ca. 1353 - Waves of undead pour forth from the Sil'dihn waterways beneath the city.
- Responding to a series of zombie attacks across Thanalan, the sultanate approaches its theretofore enemy, the Amalj'aa, with a proposal to join forces against the common undead foe. The Amalj'aa - eager to cleanse their sacred land of the foul corpses - accept the offer, and Zahar'ak is established as a joint garrison.
- Ala Mhigan mercenaries are contracted by Ul'dah in the sultanate's efforts to purge the city of the undead droves.
ca. 1355 - With the aid of the Ala Mhigan mercenaries, the sultanate at long last is successful in ridding the city of the undead.
- The Royal House of Thorne abdicates the throne and restores sovereignty to the House of Ul, marking the ascension of the second Ul Dynasty.