The 10th century DE was a D'ni century which lasted from 5625 DE to 6249 DE.
- 5701 DE: Lanaren is crowned King of D'ni.
- 5701 DE: King Lanaren reveals the existence of the Relyimah to the public, and pledges to shut the organization down.
- 5714 DE: Construction begins on a new tunnel connecting Ae'Gura and the City Proper.
- 5714 DE: King Lanaren orders the Guilds to replace all Ages requiring outsider involvement with ones that do not.
- 5734 DE: The tunnel connecting Ae'Gura and the City is canceled. Stone Tooth is reassigned to expansion work near the Ashem'en District.
- 5856 DE: Construction begins on the new Lanaren District. Stone Tooth is assigned to exploration in the outlying regions of the Cavern.
- 5903 DE: The Lanaren District is completed.
- 5986 DE: The Relyimah is finally officially disbanded.
- 5999 DE: Asemlef is crowned King of D'ni.