Oran

Oran started colonizing the planet of Kraia 300 years before current day, after 25 years, 5 of which having no contact between them, the colonies of Lapsus and Altera declared themselves independant

Expulsion of Exsul

Exsul did not agree with the other two large city islands. They resided where Arctum now lies, between Nemus and Altera. They tried to assert dominance over the others, but were driven to the north, opposite a mountain range from Altera

They remain self sufficient

Nemus and Tech

After Altera and Lapsus were colonized, Nemus came next. With it, mass technological advancements, surpassing Oran at the time.

Growht since has been stagnent. They have no cumbustion engines yet, they're working on it