2263 — memory alpha

Multiple realities

(covers information from several alternate timelines)

Events

One hundred fifty men, women, and children, led by Elias Sandoval, depart Earth for Omicron Ceti III to establish the future Omicron colony. It is the last time they will encounter anyone outside their own group until the USS Enterprise's 2267 arrival. (TOS: "This Side of Paradise")
Ben Childress, Herm Gossett, and Benton partner up to establish a mining company on Rigel XII. (TOS: "Mudd's Women")
An infant Lactran, later encountered by the USS Enterprise landing party in 2269, is born on Lactra VII. (TAS: "The Eye of the Beholder")
Matthew Decker is promoted to commodore. He remains in command of the USS Constellation. (PIC: "The Star Gazer" commemorative plaque [1]^(X))

A peace offering to the Teenaxi Delegation from the Fibonan Republic with Captain James T. Kirk acting on their behalf goes awry forcing Kirk to abort the negotiation. (Star Trek Beyond)
The USS Enterprise makes a reprovisioning stop at Yorktown Station. (Star Trek Beyond)
The Enterprise is destroyed by Krall and his swarm ships during an alleged rescue mission over Altamid. (Star Trek Beyond)

Construction for the USS Enterprise-A is underway at Starbase Yorktown. (Star Trek Beyond)

Krall launches an assault on Starbase Yorktown, but is ultimately defeated by the remaining Enterprise crew in the repaired Franklin. (Star Trek Beyond)
James T. Kirk celebrates his 30th birthday at a surprise party, during which he honors the Enterprise and those who did not survive recent events. (Star Trek Beyond)
Jaylah is offered aceeptance into Starfleet Academy after Kirk "pulled a few strings". (Star Trek Beyond)

January 2 (stardate 2263.02): Ambassador Spock dies on New Vulcan. (Star Trek Beyond)
Montgomery Scott is led to the long-lost and intact USS Franklin on Altamid by Jaylah. (Star Trek Beyond)
Spock goes through a cache of items belonging to the late Ambassador Spock and discovers a photo of him with the senior crew of the USS Enterprise-A circa 2287 in his timeline. (Star Trek Beyond)

According to Star Trek: Star Charts (p. 53), the planet Ardana is admitted to the United Federation of Planets.
According to the specifications seen in DIS: "Brother", The USS Enterprise had an endurance performance of 18 years which would end sometime in this year.