History
X-World was originally established as the Universal X-Alliance's central base. It would become a haven and home for all outcasts, from everywhere in the universe, which came to be known as X-World, complete with a colossal image of an "X' on one side of the planet.
Mutants from many alien species received their training on this planet, including children. It was a world of advanced technology and the base of the X-Alliance's galactic peacekeeping force. Which receives diplomatic representatives from many worlds, including the local interstellar powers such as the Skrulls, Kree, and Shi'ar.[1]