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The Galaxy-class was a Starfleet vessel first introduced in the 2360s. It was the largest and one of the most powerful Federation starship classes of its time. As such, many saw action in the Dominion War.
The Galaxy-class began development in the 2350s at Utopia Planitia Fleet Yards. Numerous technologies implemented on Galaxy-class starships were tested aboard earlier prototype vessels, including the Oberth-class USS Pegasus, in the 2350s. The warp core was designed at Outpost Seran-T-one on stardate 40052 by some of the most brilliant engineering minds in the Federation, including Leah Brahms of the Theoretical Propulsion Group.
The most famous Galaxy-class ship was the USS Enterprise-D, under the command of Captain Jean-Luc Picard. The ship made many official first contacts with a multitude of new species, including the Borg Collective, the Ferengi Alliance, and the Q Continuum.