Xindi
The Xindi were an alliance of species who evolved on the same planet in the Delphic Expanse, known as Xindus, whose infamous attack on Earth and attempts to eradicate Humans in the early 2150s changed the course of history and initiated the series of events that helped establish United Earth as a major interstellar power. In at least one future timeline, the Xindi state had, by the 26th century, become a member of the United Federation of Planets.
Xindi Species[edit]
Six different intelligent species developed on Xindus; one of them, the Xindi-Avians, was believed extinct by the 2150s. The surviving species were united under the governance of the Xindi Council, which contained two representatives from each species.
The different Xindi species were extremely similar in their functionally-important DNA, sharing over 99.5% despite the apparent physical differences. (ENT: "The Xindi") All the Xindi species shared distinctive ridges on their cheekbones and foreheads.
History[edit]
The Xindi had a long and turbulent history, characterized by interspecies conflict up until the destruction of their homeworld in the 2030s. In the 2150s, they attempted to destroy Earth with a superweapon.
In the mirror universe, Xindi ships fought in a conflict with the Terran Empire sometime prior to 2155. (ENT: "In a Mirror, Darkly", "In a Mirror, Darkly, Part II")
Conflicts between the Xindi and the Terrans were seen in the opening credits of those episodes. It is unclear if this may have been part of the Vulcan-inspired rebellion at that time.
In the 26th century of an alternate timeline, Xindi served on the USS Enterprise-J during the Battle of Procyon V against the Sphere Builders. (ENT: "Azati Prime")
Culture[edit]
The Xindi nearly worshiped the Guardians, considering them saviors. Children were taught to revere them and give thanks to them at the end of each day. It was a terrible offense to question a Guardian. (ENT: "The Council")
Xindi passed down "initiation medals" among the members of a family. (ENT: "Azati Prime")
For more information on the culture of each Xindi race, see each race's own entry.
Language[edit]
The Primates, Arboreals, and Reptilians spoke a common language that was recognized by Earth Starfleet Universal Translators. The Insectoids and Aquatics understand this language but appeared to be physically incapable of speaking it.