The Goddess Jin Yan sacrificed her body to form this land, making it the only place with the power to withstand the Sage Emperor. It is here that millions of years ago, experts like Xiao Yu's Father and Ancestral Master Daozang sealed the Sage Emperor's Demonic Bone. This greatly limited the Sage Emperor's power. He can only use a clone which possesses a tenth of his true power. Giving them hope that he could be stopped in the future.
After the Myriad Ancestor Sword was separated into seven pieces during a great battle, the Ancestral God Land kept one section and gave each of the six divine sects one of the others.
For some unknown reason the Holy Maiden of the Ancestral God Land suddenly disappeared and the entire land was burned to the ground by golden flames. After this happened the Sage Emperor of the Ancestral Demonic Saint Land was able to recover his Demonic Bone and began to recover his power.