When the USS Defiant was pulled from 2268 of our universe into 2155 of the mirror universe, Jonathan Archer searched the historical database for a reference to the Terran Empire. He was disappointed to find that the Terrans of this universe had joined with other alien races to form the United Federation of Planets. When Hoshi Sato asked if she and Archer existed in the alternate universe, Archer used the database to find the historical record for her counterpart in our universe, after which she returned the favor by bring up his counterpart's profile. The database ultimately proved to be troublesome for Archer when it served as a catalyst for T'Pol's rise against him, with the Vulcan seeking the equality present in our universe. After defeating T'Pol's rebellion, Archer ordered that the De