Tangestan is yet another townships of Bushehr the center of which is 'Ahram'. The famous fort of Tangestan lies in this township, the inhabitants of which are distinct for their loyalty to the country and chivalry. It is believed that the vicinity of 'Tedumari' in Tangestan is a reminder of a trading clan reputedly from central Asia ,i.e., the ancient 'Tedmer' and 'Palmir' tribes. It is evident that the coastal region of the Persian Gulf was an important trading and commercial center for traders belonging to different areas in the past.