








| Canon source | Backstage source | Novel source | DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | TNG | 4 | The Best of Both Worlds, Part 2 | |
| 2 | TNG | 1 | Encounter at Farpoint | |
| 3 | Various Next Generation episodes | |||
| 4 | TNG | 5 | The First Duty | |
| 5 | TOS | 1 | Where No Man Has Gone Before | |
| 6 | Star Trek Encyclopedia | 3rd Edition, Page 255 |
| Series : | TNG Season 4 |
| Episode : | The Best of Both Worlds, Part 2 |
| Series : | TNG Season 1 |
| Episode : | Encounter at Farpoint |
| Series : | TNG Season |
| Episode : | Various Next Generation episodes |
| Series : | TNG Season 5 |
| Episode : | The First Duty |
| Series : | TOS Season 1 |
| Episode : | Where No Man Has Gone Before |
| Book : | Star Trek Encyclopedia |
| Comment : | 3rd Edition, Page 255 |
| © Graham & Ian Kennedy | Page views : 28,225 | Last updated : 25 Jul 1998 |