Moro's Tablet

This is a new world, created by Moro. The last was corrupted and for it, rendered to nothing more than dust. From the dust, Moro formed a new by collapsing the previous world into itself. For whom reads, you are the new one to this land, amongst the first. In the previous world, people could manipulate the four elements using their chi. These elements were water, earth, fire, and air. To keep the world in balance, there existed a single person would could control or bend all four unlike the others possessing only one. However, they failed. 
In this world, there are 8 sources of power divided across the land known as relics guarded by powerful spirits, followers of Moro. Somewhere lies the land of spirits. The power of the avatar, or the single bender of all four, still exists locked away and guarded in a land of immense heat.
Unlike the last world, benders of this world have been blessed with more chi by Moro, thus, all are far stronger than those of the past world. But that matters not. This world is yours to create, destroy this tablet, and allow none to uncover this information any longer, preserve it and possibly cause a rush of people hunting the relics and their power. History is yours.