Great Dark War

The Dark War sometimes know as the First War of Magic, was an event that took place decades before Calamity Trigger. A monstrosity known as the Black Beast appeared in the year 2100. The Black Beast spread a substance known as seithr all over the world, as that was the only way the Black Beast could operate. The Black Beast's power was overwhelming, and killed off more than half of the world's population. Mankind tried to do everything they could to eliminate the seithr, thinking it would be easier and safer than fighting the beast directly, but even that plan failed.

Eventually, the Six Heroes appeared and the situation took a turn. Nine, of the Six Heroes passed her knowledge of magic to mankind. Unfortunately, magic couldn't be used in its basest form by humans, as they were unable to manipulate and control it. Humans did a great deal of research into the subject and eventually developed something known as Ars Magus. Unfortunately, Ars Magus wasn't enough so mankind created something more powerful, called Ars Armagus, or "Armagus", which could be used to directly combat the Beast. After the humans figured out how to use Ars Magus and Armagus, they fought alongside the Six Heroes and defeated the Beast.