years: 2252 2253 2254 2255 2256 2257 2258

(stardates Unknown)

decades: 2220s 2230s 2240s 2250s 2260s 2270s 2280s
centuries: 22nd century - 23rd century - 24th century


Promotions and transfersEdit


Notable peopleEdit

References and NotesEdit

  1. Crisis on Centaurus (TOS novel)
  2. "The Ensigns of Command" (TNG episode)


Title Series Date Media Notes Image
Child of Two Worlds

Chapters 1-28
The Original Series 2255 novel Takes place after the events of "The Cage," and also after Marvel's Early Voyages series ends. Child of Two Worlds

Desperate Hours Discovery May2255 novel Desperate Hours cover

The Star to Every Wandering

Chapter 5, Section 1
The Original Series 2255 novel Flashback to Lieutenant Kirk during a mission to Beta Regenis II aboard the USS Farragut. Crucible3
A Choice of Catastrophes

Chapter 11 - "Thirteen Years Ago"
The Original Series 2255 novel A Choice of Catastrophes cover

Chapters 5, 10 & 13
The Original Series 2255 novel Legacy
Strange New Worlds I

A Private Anecdote

The Original Series 2255 short story SNW
Star Trek

Chapter 4
The Original Series 2255 movie novelization Events take place in an alternate reality. Star Trek film novel
Star Trek (IDW)


2255 flashback sections
The Original Series 2255 comic Flashback to young Leonard McCoy attending medical school, subsequent divorce, and enrollment in Starfleet Academy. Events take place in an alternate reality. IDW TOS 17 cover
Star Trek (IDW)

IDW Star Trek, Issue 14

2250s flashback
The Original Series circa 2255 comic Dating very approximate. Flashback to Keenser's arrival at the Delta Vega Starfleet facilty, several years prior to Montgomery Scott's exile there. Events take place in an alternate reality. IDW TOS 14 cover


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