Board Thread:Lore Discussion/@comment-24627553-20140316230248/@comment-14027812-20140316231134

Landfall is the ending event to Nirn. It happened when the Thalmor finally suceeded in elminating Man and destroying the Towers, making Mundus fall apart. The events in MK's C0DA are set in one of the moons, presumably Masser. Hope this helps.