The Bakhtiari Sub-Tribe is among the largest sub-Tribes of the south-west of Iran and has played an important part in the Iranian history.it is formed by two branches, names Half-Lang and Chahar-Lang. The Bakhtiari Provincde is mainly the summer territory of the Half-Lang branch.There are various reports on the size of this Sub-Tribe.According to 27 different available sources. The number of their Khanevars (households) in the 180 year period from 1807 to 1987 has varied from 12,000 to 100,000. However, according to a recent census, they now have 27,960 Khanevars wit a total population of 181,777.Of these, 660 khanevars spent the winter in the Bakhtiari Province and the rest go to Khoozestan Province.Bainvehsen, the French archaeologist, puts emphasis on the antiquity of this Sub-Tribe on the strength of a statue found in Eazeh belonging to the Sassanid era, depiciting a man dressed like a Bakhtiari.The Bakhtiari's Language is Farsi with a bakhtiari dialect,Besides sheepherding, they engage in crafts like carpet weaving,gelim weaving, jajim weaving, cap making felt making, giveh making (traditional shoes), namakdan making (salt container)and sofrehnan making (special cloth for keeping bread).Men's costumes include choogha(coats with large shoulders), khosravi Hats(bowl-like cap), debits (Loose black trousers) and giveh. Woman are clad in pleated trousers, long dresses, kaljeh (kolemjeh, meaning waistcoat), meyna(headdresses) and giveh.