Horn of Africa covered the Simien and Bale Mountains but melted at the beginning of the Holocene. The mountains descend in a huge escarpment to the Red Sea and more steadily to the Indian Ocean. Socotra is a small island in the Indian Ocean off the coast of Somalia. Its size is 3,600 km (1,390 sq mi) and it is a territory of Yemen. The lowlands of the Horn are generally arid in spite of their proximity to the equator. This is because the winds of the tropical monsoons that give seasonal rains to the Sahel and the Sudan blow from the west.
Sub-Saharan Africa the form of the Eblaite language of north eastern Syria. The distribution of the Afroasiatic languages within Africa is principally concentrated in North Africa and the Horn of Africa. Languages belonging to the family's Berber branch are mainly spoken in the north, with its speech area extending into the Sahel (northern Mauritania, northern Mali, northern Niger). The Cushitic branch of Afroasiatic is centered in the Horn, and is also spoken in the Nile Valley and parts of the African Great Lakes region. Additionally, the Semitic branch of the family, in the form of Arabic, is widely spoken in the parts