| Term |
Age |
History |
|---|
| 1 |
12 |
Became a Dolphin Civilian (Nomad). |
| 1 |
16 |
Spend an extensive period living out of water among humans. |
| 1 |
16 |
Promoted to Dolphin Civilian (Nomad) rank 1. |
| 2 |
16 |
Voluntarily left Nomad |
| 2 |
16 |
Failed to qualify for Journalist (Entertainer). |
| 2 |
16 |
Submitted to the draft. |
| 2 |
16 |
Became a Dolphin Military (Sea Patrol) with the new title Private. |
| 2 |
17 |
Commanding officer takes an interest in Isaac Cunningham's career. |
| 2 |
20 |
Promoted to Dolphin Military (Sea Patrol) rank 1 with the new title Lance Corporal. |
| 3 |
20 |
Continued as Dolphin Military (Sea Patrol). |
| 3 |
23 |
A brutal amphibious warfare campaign forces Isaac Cunningham to spend as much time fighting out of water as in. |
| 3 |
24 |
Promoted to Dolphin Military (Sea Patrol) rank 2 with the new title Corporal. |