Though negotiation had been attempted, the fierce plains warriors would settle for nothing less than the annihilation of the city of Fio'taun. The fortress city of Fio'taun was under assault by the T'au warriors from the plains. During this time, the T'au's legends tell of the first appearance of the Ethereals at the city of Fio'taun. They have developed very rapidly as a space-faring species.Įarlier in their history, the T'au were a culture built upon warring tribes. What is known is that only 6,000 standard years ago, in the 35th Millennium, an Adeptus Mechanicus Explorator fleet had discovered the T'au homeworld of T'au and determined that its population of sentient xenos were a primitive people at the Stone Age level of development who had only just mastered fire.
The exact date of the founding of the T'au Empire in the Imperial Calendar is unclear, however the way in which the T'au were united as a species is a well-known tale.