Hundred years ago their ancestors lived by the river. From time to time they must learn how to catch fish, hunting, living by the river. They ever have a "head hunter" custom. They hunted the enemy's head, more hunting, more heroic, as they said. They are brave, the whole Borneo was their territory. When the British colonial era, all this was changed. We call them, DAYAK IBAN. Nowaday, their customs is slowly be eliminated by modern life.