Great Plague

The great plague was a massive outbreak of the Crimson Plague in Kailulan. Details of this event are not mentioned often and not much about the event is known.

Cause
The cause of the outbreak was due to an Alvish individual named Trahaiko, who created a midway from Dokulan to Kailulan using the Summoning Stone. This upset Arkian, and as a punishment he released Caethea from the Dreghulan in order to kill Trahaiko's party and retrieve the Summoning Stone. A fight broke out between Trahaiko's party and Caethea, leading to a massive strain of the Crimson Plague being released upon Kailulan due to the immense amount of Tsera Energy being used during the fight. Caethea succeeded and left Kailulan with the Summoning Stone, returning it to it's original location, this gained her trust from the gods, and she was granted the ability to exit and enter Dreghulan with full freedom.

Effect
Though the exact number is not known or ever mentioned, but it is safe to assume over 1 million died from the plague. Most of the old territory was left uninhabitable and many evacuated by ship. Corrin I was a naval leader at the time who evacuated a large convoy of 180,000 people and soldiers to the new territory, but landed on Corcillon due to a storm. For more information look at: Old Territory Evacuation.