{{TauPortal}}

The Tau '''caste system''' divides all [[Tau]] into 5 groups known as '''castes'''. The castes are named after the elements of nature, and closest to the particular caste in question. One's caste is determined at birth and inherited by one's parents. Inter-breeding is forbidden by the Ethereals. To choose another caste for himself seems to be impossible, and held contrary to the notions of the [[Greater Good]]. The castes are based upon the racial and political divisions that separated the Tau on their [[homeworld]] of [[T'au]] during the time of the [[Mont'au]].