| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Engineer/Gunner (Navy). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Navy (Line/Crew) with the new title Crewman. |
| 1 |
22 |
Advanced training in a specialist field. |
| 1 |
22 |
Promoted to Navy (Line/Crew) rank 1 with the new title Able Spacehand. |
| 2 |
22 |
Voluntarily left Line/Crew |
| 2 |
22 |
Became a Citizen (Worker). |
| 2 |
26 |
Columbus Withers is rewarded for Columbus Withers's diligence or cunning. |
| 3 |
26 |
Continued as Citizen (Worker). |
| 3 |
28 |
Hard times caused by a lack of interstellar trade costs Columbus Withers Columbus Withers's job. |
| 4 |
30 |
Continued as Citizen (Worker). |
| 4 |
31 |
Spent time maintaining and using heavy vehicles. |
| 5 |
34 |
Voluntarily left Worker |
| 5 |
34 |
Became a Scholar (Scientist). |
| 5 |
36 |
Refuse to join a cheat in some fashion. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Failed to qualify for Field Researcher (Scholar). |
| 6 |
38 |
Continued as Scholar (Scientist). |
| 6 |
41 |
Make a breakthrough in Columbus Withers's field. |
| 6 |
42 |
Promoted to Scholar (Scientist) rank 1. |