The Tsimihety are a Malagasy ethnic group who are found in the north-central region of Madagascar. Their name means "those who never cut their hair", a behavior likely linked to their independence from Sakalava kingdom, located to their west, where cutting hair at the time of mourning was expected. They are found in mountainous part of the island. They are one of the largest Malagasy ethnic groups and their population estimates range between 700,000 and over 1.2 million. This estimation places them as the fourth-largest ethnicity in Madagascar. Ethnic identity The Tsimihety trace their origins back to the eastern coast, having migrated with their cattle to the Mandritsara plain in the 18th century as leaderless refugees fleeing the slave wars ongoing in their homeland. Soon afterward they accepted the rule of the Volafotsy, a clan associated with the Maroserana who had migrated north from Sakalava territory. Peter Wilson – a professor of Anthropology specializing on Madagascar, states that Tsimihety people do not fit the normal assumptions of anthropologists, for these people "didn't create symbols or rituals or tribal rules" like tribes do, but they can "only be described negatively" by what they didn't and don't do. They are thus not a tribe, because they lack tribal ties, lack social compact and have no hierarchical power structure within the ethnic group. Their relationships are centered around biological family and kin. History The anarchist system prevailed among the Tsimihety people before the 19th century. However, in 1823, Radama I, the Merina king, brought the entire island under one rule, including the Tsimihety, and abolished the international slave trade. The French colonial rule absorbed the Tsimihety in 1896, as a part of French Madagascar. The Tsimihety have been an active part of Madagascar politics ever since. Philibert Tsiranana, a Tsimihety from near Mandritsara, was the first president of the Malagasy Republic, when it became a semi-autonomous region within the French Union in 1959, and remained president for 10 years after it gained independence from France in 1960. Society David Graeber, an anthropologist specializing in the study of anarchist systems, states the Tsimihety people exemplify a historic social system that accepted no authority and practiced anarchy: The Tsimihety represent one of the rare examples where the culture was innately anti-government, where states Graeber, all forms of government had effectively been withdrawn even from countryside and communities. Informal consensus was the basis of local decisions,