| Term |
Age |
History |
|---|
| 1 |
12 |
Failed to qualify for Marine Academy (Military Academy). |
| 1 |
12 |
Became a Dolphin Civilian (Nomad). |
| 1 |
14 |
Dayton Brook succeed at a dangerous mission to rescue people in a sinking vessel or underwater city. |
| 1 |
16 |
Promoted to Dolphin Civilian (Nomad) rank 1. |
| 2 |
16 |
Continued as Dolphin Civilian (Nomad). |
| 2 |
17 |
Dayton Brook fail a dangerous mission to rescue people in a sinking vessel or underwater city. |
| 2 |
20 |
Promoted to Dolphin Civilian (Nomad) rank 2 with the new title Pod Leader. |
| 3 |
20 |
Continued as Dolphin Civilian (Nomad). |
| 3 |
24 |
Gained a contact. |
| 3 |
24 |
Promoted to Dolphin Civilian (Nomad) rank 3. |
| 4 |
24 |
Continued as Dolphin Civilian (Nomad). |
| 4 |
26 |
Dayton Brook succeed at a dangerous mission to rescue people in a sinking vessel or underwater city. |
| 4 |
28 |
Promoted to Dolphin Civilian (Nomad) rank 4. |
| 5 |
28 |
Continued as Dolphin Civilian (Nomad). |
| 5 |
29 |
Dayton Brook fail to rescue a high-status swimmer who was lost at sea. |
| 5 |
32 |
Promoted to Dolphin Civilian (Nomad) rank 5 with the new title Superpod Leader. |
| 6 |
32 |
Continued as Dolphin Civilian (Nomad). |
| 6 |
34 |
A war or insurgency erupts on Dayton Brook's world. Dayton Brook is drafted into the military. |