Some 20 million Akan live in Africa, particularly in Ghana and Ivory Coast. (See as well their subgroups, the Ashanti, also called Asante, Akyem, Bono, Fante, Akwamu.) Many but not all of the Akan still (2001) practice their traditional matrilineal customs, living in their traditional extended family households, as follows. The traditional Akan economic, political and social organization is based on maternal lineages, which are the basis of inheritance and succession. A lineage is defined as all those related by matrilineal descent from a particular ancestress. Several lineages are grouped into a "political unit" headed by a chief and a council of elders, each of whom is the elected head of a lineage – which itself may include multiple extended-family households. Public offices are thus vested in the lineage, as are land tenure and other lineage property. In other words, lineage property is inherited only by matrilineal kin.