Horn of Africa complex pattern of interrelationships among the various groups. According to "Ethnologue", there are 10 individual languages spoken in Djibouti, 14 in Eritrea, 90 in Ethiopia, and 15 in Somalia. Most people in the Horn speak Afroasiatic languages of the Cushitic or Semitic branches. The former includes Oromo, spoken by the Oromo people in Ethiopia, and Somali, spoken by the Somali people in Somalia, Djibouti and Ethiopia; the latter includes Amharic, spoken by the Amhara people of Ethiopia, and Tigrinya spoken by the Tigrayan people of Eritrea and Ethiopia. Other Afroasiatic languages with a significant number of speakers include the Cushitic
Horn of Africa Cinnamonifora due to the aromatic plants, or Regio Incognita owing to its unchartered territory. Shell middens 125,000 years old have been found in Eritrea, indicating the diet of early humans included seafood obtained by beachcombing. According to both genetic and fossil evidence, archaic Homo sapiens evolved into anatomically modern humans solely in the Horn of Africa between 200,000 and 100,000 years ago and have dispersed from the Horn of Africa. The recognition of "Homo sapien idaltu" as a valid subspecies of the anatomically modern human lineage would justify the description of contemporary humans with the subspecies name "H. s. sapiens".