2260s
The 2260s was a significant decade in Federation history. The five-year mission of the Federation starship  under Captain Kirk's command (which ended in 2270) occurred in this time period.  By 2380, Commander Jack Ransom referred to this decade as "TOS", an initialism for the phrase "Those Old Scientists". ()

Years

Events

Prime reality
 Stardate 1024.7: In the early 2260s, Joran Belar is born on . ()
 The Kolvoord Starburst is banned at Starfleet Academy around this time following an accident in which all five cadets attempting to perform the maneuver are killed. ()
 The future groundskeeper of Starfleet Academy, Boothby, is born in this decade. ()
 Doctors Janet and Theodore Wallace performed experiments using various carbohydrate compounds to slow down the degeneration of plant life at a Federation outpost on Aldebaran III. The two had previously married sometime after 2261, with Mr. Wallace having passed sometime before 2267. ()
 A female empathic metamorph is born on Krios Prime. ()

Alternate reality
 Sometime after stardate 2263.02, The  is launched. ()

ru:2260-е
de:2260er
es:Década del 2260
fr:2260s
nl:2260s
sv:2260-talet
Alternate reality timeline