Albion is a landmass that constitutes the island currently known as Great Britain.
Once, the land of Albion was united in an age of peace, during which all of its inhabitants followed the Old Religion. Now there are many kingdoms within Albion, between which peace is exceedingly rare. Around the reign of Uther Pendragon, followers of the Old Religion were rare in Albion, and magic was banned from Camelot. During this time of division and hostility, Kilgharrah, the Great Dragon, prophesied that together, Merlin and King Arthur would reunite all the kingdoms of the land back into Albion, and revive the Old Religion to coexist in peace with the New Religion.