on a galactic scale
Occured: 10,147 GST
The Dimension War occured about 12,000 years before the present day, when a group of rogue Forseers created a tear in Aragithia's very reality with some form of ancient magic to try to leave their homeworld, inadvertantly transporting a small population of Kelosians from their homeworld of Crystaldeep, and also erasing those Kelosians' memories of their planet. The Creator destroyed the group of Forseers and repaired the tear in Aragithia's reality. The side effects of the tear, however, were that half of the world was plunged underneath the sea and all of the Timekin along with it. This was not really a war but it does explain the reason that Aragithia has only one continent, which is unnamed.