Horn of Africa displays the greatest diversity, a sign often viewed to represent a geographic origin. The Horn of Africa is also the place where the haplogroup E1b1b originated from, Christopher Ehret and Shomarka Keita have suggested that the geography of the E1b1b lineage coincides with the distribution of the Afroasiatic languages. Genetic analysis done on the Afroasiatic speaking population further found that a pre-agricultural back-to-Africa migration into the Horn of Africa occurred through Egypt 23,000 years ago and it brought a non-African ancestry dubbed Ethio-Somali in the region. Together with northern Somalia, Djibouti, the Red Sea coast of Sudan and Eritrea is
Islam in Africa of the northern half of Africa, mainly concentrated in North Africa, the Horn of Africa and the Sahel, as well as West Africa. Islam has been in Africa for so long, since its emergence on the Arabian peninsula, that some scholars have argued that it is a traditional African religion. Although the majority of Muslims in Africa are Sunni or Sufi, the complexity of Islam in Africa is revealed in the various schools of thought, traditions, and voices that constantly contend for dominance in many African countries. Islam in Africa is not static and is constantly being reshaped by prevalent