| Term | History |
| 1 | Became a Physician at age 18 |
| 1 | Advanced training in a specialist field. |
| 2 | Continued as Physician at age 22 |
| 2 | Win a prestigious prize for your work. |
| 2 | Promoted to rank 1 |
| 3 | Continued as Physician at age 26 |
| 3 | Advanced training in a specialist field. |
| 4 | Continued as Physician at age 30 |
| 4 | Make a breakthrough in your field. |
| 5 | Continued as Physician at age 34 |
| 5 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 5 | Promoted to rank 2 |
| 6 | Continued as Physician at age 38 |
| 6 | Advanced training in a specialist field. |
| 6 | Forced to muster out. |
| 7 | Became a Line/Crew at age 42 |
| 7 | Is now a Crewman |
| 7 | Special assignment or duty on board ship. |
| 7 | Attempt at commissioned failed. |
| 8 | Continued as Line/Crew at age 46 |
| 8 | Advanced training in a specialist field |
| 8 | Promoted to Line/Crew rank 1 |
| 8 | Is now a Able Spacehand |
| 9 | Continued as Line/Crew at age 50 |
| 9 | Advanced training in a specialist field |
| 9 | Promoted to Line/Crew rank 2 |
| 9 | Is now a Petty Officer, 3rd class |
| 10 | Continued as Line/Crew at age 54 |
| 10 | Refuse to abuse your position for profit |
| 10 | Promoted to Line/Crew rank 3 |
| 10 | Is now a Petty Officer, 2nd class |
| 11 | Aging Crisis. Owe 50,000 for medical bills. |
| 11 | Continued as Line/Crew at age 58 |
| 11 | A new romantic starts. Gain an Ally. |
| 11 | Forced to muster out. |
| 12 | Aging Crisis. Owe 40,000 for medical bills. |
| 12 | Retired at age 62 |
| 12 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 13 | Aging Crisis. Owe 40,000 for medical bills. |
| 13 | Betrayal. Convert an Ally into a Rival or Enemy. |
| 14 | Aging Crisis. Owe 50,000 for medical bills. |
| 14 | A new romantic starts. Gain an Ally. |
| 15 | Aging Crisis. Owe 60,000 for medical bills. |
| 15 | Moved to a new world. |
| 16 | Aging Crisis. Owe 10,000 for medical bills. |