ANTHROPOLOGY Dayak family group; the native population of Borneo; prepares food at home. "Dayak" is a term defined in disuse for more than 200 ethnic subgroups settled mainly in the interior of Borneo; each with its own dialect; customs; laws; territory and culture; although with some features in common; each group is easily identifiable. The Dayak were traditionally animist belief; however many have been converted to Christianity and Islam; some recently. The consistency of the Dayak population is estimated to number 18 million to 20 million. Photographic Postcard; circa 1900