First Appearance: "MIRROR, MIRROR"
The Terran Emprie
Physical Attributes: Humanoid.
On April 5, 2063, a Vulcan ship landed on Earth in Bozeman, Montana, to make first contact, but a group of Terrans, led by Zefram Cochrane, attacked the Vulcans and boarded their ship to loot its technology.
A century later, the Terran Empire dominated the Alpha Quadrant, including Vulcans, Tellarites, Orions, and Denobulans.
In the Twenty-third Century, while the I.S.S. Enterprise was on a mission to force the Halkan Council to allow dilithium mining on its planet, a transporter accident during an ion storm replaced Captain Kirk and other officers with their counterparts from a parallel Universe, where a peaceful Federation existed in place of the Empire. The Kirk of the Federation Universe convinced Commander Spock of the I.S.S. Enterprise that the Empire's current course was illogical and that he should work to make the Empire more peaceful.