Tandaran

The Tandarans are a humanoid space-faring civilization and member of the United Federation of Planets.

In the 22nd century, thhe Tandarans considered themselves at war with the Suliban and the Cabal. But by the 24th century, conditions were such that they had officially apologized the Suliban for atrocities committed in the past. Doing so was a condition of their application for Federation membership, and they officially were accepted in the 2320s.

By the late 24th century, the Tandarans were known for their research into time travel and temporal mechanics.