Sicily . It entered Ethiopia in the Neolithic with the Neolithic Revolution and spread of agriculture, where it is found mainly among Semitic speakers (e.g. Amhara 33.3%, but Oromo 3.8%). It spread later to North Africa in historic times (as identified by the motif YCAIIa22-YCAIIb22; Algerians 35.0%, Tunisians 30.1%), where it