2390s

Events

2395: According to the imager at the Velara Base, this year is when Velara III would have become a Class M planet suitable for colonization. However, the project was discontinued with the discovery of the microbrain in 2364. (TNG: "Home Soil")

Alternate timelines

Consistent throughout all timelines:

Starfleet introduces a new combadge design by 2390, and a new uniform at some point after.

The following events took place in an alternate timeline in which the Delta Flyer returned to Earth after Voyager crash landed due to faults in a quantum slipstream drive. (VOY: "Timeless")

2390: Chakotay, with the assistance of Harry Kim, Tessa Omond, and The Doctor (after being reactivated) changes the timeline so that Voyager doesn't crash on the Class L planet.

The following events took place in an alternate timeline in which Benjamin Sisko was displaced out of time. (DS9: "The Visitor")

2391: Jake Sisko begins to study subspace mechanics and was awarded with a Betar Prize for his Collected Stories.

The following events took place in an alternate timeline in which the USS Voyager did not enter the Borg transwarp conduits and return to Earth in 2378. (VOY: "Endgame")

2392: The Doctor invents a synaptic transceiver for a neural interface.
2394: Voyager returns to Earth after 23 years in the Delta Quadrant. Chakotay dies in the same year.

The Star Trek Chronology gives the date for the events of the anti-time future in "All Good Things..." as 2395. However, this assumes that the crew of the Enterprise-D disbands concurrent with the end of TNG Season 7. No specific date is given in the episode itself, only that it had been 15 years since the crew was all serving on the Enterprise-D. Riker also states that he and Worf have been estranged for 20 years as a result of their shared feelings for Troi.

Apocrypha

The Path to 2409 lists events leading up to Star Trek Online during this time. Star Trek Online was initially intended to be set in the 2390s. The setting was moved to 2409, however. ^{(citation needed • edit)}