Sanctuary Island was created by a number of small Cubi clans seeking to save their clan lines some 7000 years or so ago, when the Cubi Wars were at their height. This was also the period during which Fa'Lina founded SAIA for a similar purpose, but since the Academy was only in the planning stage at the time, they decided to take matters into their own hands. After the island was created, a barrier was put in place to stop anyone from coming in... or going out.