Changes

* The eastern lord [[Leoric]] comes to [[Tristram]], declares himself its king, and converts the old, long-unused [[Tristram Cathedral|Horadric monastery]] to a [[Zakarum]] cathedral. His advisor, [[Archbishop]] [[Lazarus]], secretly releases [[Diablo]] from imprisonment.

* King Leoric descends into madness as he valiantly struggles to resist Diablo's possession.

* Increasingly deranged, [[King Leoric]] begins imprisoning all who question his authority and executing them as traitors. He declares war on the kingdom of [[Westmarch]].

* [[Diablo]] kidnaps and possesses King Leoric's only son, Prince [[Albrecht]].

* A group of heroes begins a quest to defeat [[Diablo]] and his brothers. The heroes defeat the demoness [[Andariel]] and journey east, following the [[Wanderer]].

* The demon lord [[Duriel]] is defeated within the [[Tomb of Tal Rasha]]; it is discovered that [[Baal]] is already free from his [[Soulstone]].

* The [[Dark Wanderer]] completes his transformation into Diablo; [[Mephisto]] is destroyed beneath the jungles of [[Kurast]] by the band of heroes.

* Diablo is defeated. His Soulstone is destroyed, along with Mephisto's, upon the [[Hellforge]].

* Baal and his army march on [[Mount Arreat]].

* The heroes follow Baal to Mount Arreat for the final conflict between man and the last of the [[Prime Evil]]s. Although the heroes defeat Baal, his demonic army continues to advance.

* The [[archangel]] [[Tyrael]] discovers that Baal has succeeded in corrupting the [[Worldstone]] housed within Mount Arreat. Realizing that the Worldstone cannot be restored, Tyrael reluctantly destroys it. The resulting explosion destroys Mount Arreat, ravages much of the countryside, and decimates Baal's army.

==References==

* [[Writings of Abd al-Hazir: Entry no. 0017|Abd al-Hazir: Tristram Cathedral]]

* [http://diablo.incgamers.com/blog/comments/bashiok-on-act-3-and/ Bashiok on Act 3 and Timeline Inconsistencies]

[[Category:Story]]

[[Category:Lore]]