2161 (STO)
From Trekipedia
- The Romulan War ends. ("Balance of Terror" TOS 08)
- The United Federation of Planets is formed. (Star Trek: Generations, "These Are the Voyages..." ENT 98)
- The Enterprise NX-01 is retired. "These Are the Voyages..." ENT 98)
- Season Four of Star Trek: Enterprise (2154-2155)
- Unknown: "These Are the Voyages..." (ENT 98)