Known Timeline of Mystara
Compendium of Timelines.
AC 1010 – The Empire of Thyatis sends the CXXI Legion under the command of General Troyus Machistes to conquest the center of the Isle of Dawn. The Empire of Alphatia send the Obsidian Army under the command of Lord Tersoal Levan Kronas to do the same. The thyatians rename the City of Bostnak to Bostnakus. The battles between the two armies in the plateau of the Isle of Dawn end in the creation of independent nations.
AC 1032 – Troyus Bloodstone of The Band of Wolf s crowned Emperor of Thyatis.
AC 1072 – Troyus Bloodstone orders the creation of and elite group of adventurers to venture into Alpathia, with the purpose of inciting rebellions and finding military weakness within the continent of Alpathia and taking down their military from the inside.
AC 1073 – Current Time.