Lomeelas was created at the very begining of time, as time is measured. The High Goddess of Balance spent entirnities(which really is nothing in the long run of Time) by herself in nothing, doing what? no one knows. But in the end, or the begining rather, she got bored(not lonely of course, she didn't really know what lonely was), ans she decided to remedy that by creating something. And thus the twelve lesser gods were "born".
These gods were not satsified with living in nothingness, who would be? So they decided to create other things, and The High Goddess was easily persuaded into giving them permission. Each lesser god paired with another, and together each pair formed thier own universe, so there were six in total (not counting the High Goddesess' bliss of nothingness). One such pair was Nydidian, goddess of Chaos, and Tehadras, god of Order, and they created Nonus, the magical universe. And in Nonus they created a vast continent, which they names Lomeelas. And such, Lomeelas was born as well.