| Term |
Age |
History |
|---|
| 1 |
18 |
Entered University. |
| 1 |
20 |
Join a social movement. |
| 1 |
22 |
Graduated. |
| 2 |
22 |
Became a Navy (Engineer/Gunner) with the new title Crewman. |
| 2 |
22 |
Commissioned in Navy (Engineer/Gunner) with the new title Ensign. |
| 2 |
25 |
Advanced training in a specialist field. |
| 2 |
26 |
Promoted to Navy (Engineer/Gunner) officer rank 2 with the new title Sublieutenant. |
| 3 |
26 |
Continued as Navy (Engineer/Gunner). |
| 3 |
28 |
Vessel participates in a notable military engagement. |
| 3 |
30 |
Promoted to Navy (Engineer/Gunner) officer rank 3 with the new title Lieutenant. |