| Timeline | |||
| Centuries: | 22nd Century | 23rd Century | 24th Century |
| Years: | 2259 | 2260 | 2261 |
January[]
February[]
- 10: Starbase 100 is commissioned in orbit of New Vulcan on the second anniversary of the destruction of the planet's namesake.
March[]
April[]
May[]
June[]
July[]
- 22: Cerberus, a Federation colony, is made a full member of the United Federation of Planets. It is the first planet to be colonized directly by the Federation to receive full membership.