 The chief who ordered the separation and spreading ordered one group "Lani" (you go) to one group, and to the other "Loma" (there).Thus, the chief told them to "go", "there", that is, to go towards the direction he was pointing, the western side of the Baliem Valley.The Lani have lived for millennia isolated on the plateaus with a technology remaining at the Stone Age, the first contact with Western civilization occurred only in the first half of the twentieth century.