| •1 | Uhura graduates Starfleet Academy.1
 |
| •2 | David Marcus is born to Carol Marcus. The boy's father, James Kirk, leaves Carol to raise him alone at her request.3
|
| •4 | The exploratory vessel SS Beagle is lost. It is later found to have crashed on planet 892-IV.4
|
| •5 | Robert and Nancy Crater arrive on the planet M113 to do archaeological research.5
|
| •6 | Christine Chapel's fiance, Dr. Roger Korby, disappears on Exo III. His last message describes cave formations he has discovered. Christine gives up a promising career in bioresearch to sign aboard a Starship in order to search for Korby.6
|
