There was a time, when my PC, Sitandria was young in the Alleria world and lived in Zinn'Sunn, when she entered an Arcana School. It had four spears with four houses (I think the mod at the time was really into HP...
). I remember there was Sorcery, Elem, Mysticism and Ikos.
Here is the main link:
Acadamy - Notice to Potential Students. If you'll find the description of the dorm and the four houses, you'll fall... It was great but I guess it's copy-writed or something like that.
About the history, You probably found my version of it in Labyrinth's thread
here.