| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Cavalry (Army). |
| 1 |
18 |
Became a Drifter (Wanderer). |
| 1 |
19 |
Kirby Greerson do not know what happened to Kirby Greerson. There is a gap in Kirby Greerson's memory. |
| 2 |
19 |
Became a Citizen (Worker). |
| 2 |
20 |
Good fortune |
| 2 |
23 |
Promoted to Citizen (Worker) rank 1. |
| 3 |
23 |
Continued as Citizen (Worker). |
| 3 |
25 |
Spent time maintaining and using heavy vehicles. |
| 4 |
27 |
Continued as Citizen (Worker). |
| 4 |
28 |
Kirby Greerson gain experience in a technical field as a computer operator or surveyor. |
| 4 |
31 |
Promoted to Citizen (Worker) rank 2 with the new title Technician. |
| 5 |
31 |
Continued as Citizen (Worker). |
| 5 |
32 |
Spent time maintaining and using heavy vehicles. |
| 5 |
35 |
Promoted to Citizen (Worker) rank 3. |