| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Scholar (Scientist). |
| 1 |
20 |
Advanced training in a specialist field. |
| 1 |
22 |
Promoted to Scholar (Scientist) rank 1. |
| 2 |
22 |
Attempted to change assignments. |
| 2 |
22 |
Switched to Scholar (Field Researcher) with previous rank. |
| 2 |
23 |
Refused to perform research that goes against Houston Abberton's conscience. |
| 2 |
26 |
Promoted to Scholar (Field Researcher) rank 2. |
| 3 |
26 |
Voluntarily left Field Researcher |
| 3 |
26 |
Failed to qualify for Army Support (Army). |
| 3 |
26 |
Submitted to the draft. |
| 3 |
26 |
Became a Marine (Star Marine) with the new title Marine. |
| 3 |
30 |
Assigned to the security staff of a space station. |
| 3 |
30 |
Promoted to Marine (Star Marine) rank 1 with the new title Lance Corporal. |
| 4 |
30 |
Continued as Marine (Star Marine). |
| 4 |
31 |
A mission goes disastrously wrong due to Houston Abberton's commander’s error or incompetence, but Houston Abberton survive. |
| 4 |
31 |
Report commander and gain an Enemy. |
| 4 |
34 |
Promoted to Marine (Star Marine) rank 2 with the new title Corporal. |