The essence of this school of thought is based mainly on oral transmission; that which is written in people's hearts, minds, oral history, customs, temples and religious functions.[5] It has no founders or leaders like Gautama Buddha, Jesus, or Muhammed.[6] It has no missionaries or the intent to propagate or to proselytise.[7] Some of the African traditional religions are those of the Serer of Senegal, the Yoruba and Igbo of Nigeria, and the Akan of Ghana and the Ivory Coast.