The crew of the Enterprise NX-01, as a result of a failed attempt to use a subspace corridor to meet with Degra's ship, are thrown back in time 117 years to this point. Realizing they cannot ret...
The Cardassians achieve warp capability. (Star Trek Star Charts, p. 35)
Lt. Commander Data arrives from the future to investigate the invasion of 19th century San Francisco by life-forms from Devidia II in the 24th Century. ("Time's Arrow, Parts I and II")
The Andorians achieve warp capability. (Star Trek Star Charts, p. 52)
The Klingons achieve warp capability. (Star Trek Star Charts, p. 55)