The word “Tribe” is taken from the Latin word “Tribus” which means “one third”. The word originally referred to one of the three territorial groups which united to make Rome. A tribe is a group of people who live and work together in a shared geographical area. A tribe has a common culture, dialect and religion. They also have a strong sense of unity. The tribe is usually headed by a chief. A tribal society is a group of tribes organized around kinships. Tribes represent a part in social evolution between bands and nations.