 Once born into the Osu caste, this Nigerian person is an outcast, with limited opportunities or acceptance, regardless of his or her ability or merit.Obinna discusses how this caste system-related identity and power is deployed within government, Church and indigenous communities.Among the Mande societies in Mali, Senegal, the Gambia, Guinea, Sierra Leone, Liberia, Ivory Coast and Ghana, people are divided by occupation and ethnic ties.