Wizards' calendar, 10029.
The Heart of the Ocean Bitwall was located deep in the Astral World; it was the first bitwall which was captured and developed by the Wizard Alliance. It was also the bitwall closest to the Starsoul World, it was 16 light-years away from the Starsoul World.
When it was first developed, that bitwall was a frozen blue crystal, quietly slumbering deep in the Astral World.
For thousands of years, the wizards were involved in various development and modifications of that half bitwall, and they had finally developed it into a habitable half bitwall. Several batches of wizards and civilians relocated there, the entire Heart of the Ocean Bitwall became an important stronghold of the Wizard Alliance deep in the Astral World.