||15th century DE
|| 9300s DE
|| 9325s DE
|| 9350s DE
The 15th century DE was a D'ni century which lasted from 8750 DE to 9374 DE.
- c. 9312 DE: Birth of Aitrus.
- c. 9334 DE: Excavation of the Descent begins.
- c. 9336 DE: Construction of the Great Shaft begins.
- c. 9337 DE: The Descent and Great Shaft are closed following a massive earthquake.
- c. 9349 DE: Birth of Anna.
- c. 9350 DE: Aitrus becomes a guild master in the Guild of Surveyors.
- c. 9363 DE: Aitrus is elected to the Guild Council.
- c. 9367 DE: Anna discovers D'ni.