|<<||1st century DE||>>|
The 100s DE was a D'ni decade which began on Leefo 1 100 DE, and ended on Leenovoo 29 124 DE.
- Leenovoo 18 – The Day of the Circle is established to celebrate the foundation of D'ni's 18 Major Guilds.
- The project to expand the Cavern's ventilation tunnels is completed.
- Ailesh is crowned King of D'ni.