| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Army Academy (Military Academy). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Navy (Flight) with the new title Crewman. |
| 1 |
21 |
Commanding officer takes an interest in Booker Cain's career. |
| 1 |
22 |
Commissioned in Navy (Flight) with the new title Ensign. |
| 1 |
22 |
Promoted to Navy (Flight) officer rank 2 with the new title Sublieutenant. |
| 2 |
22 |
Continued as Navy (Flight). |
| 2 |
26 |
Placed in the frozen watch (cryogenically stored on board ship) and revived improperly. |
| 3 |
26 |
Became a Scholar (Field Researcher). |
| 3 |
28 |
Advanced training in a specialist field. |