I am following for years the controversy about African genes in the original Greek population, which is rather common in contemporary Greek and Southern Italian populations. The controversy has political meaning, as the Greek Republic does not recognize Macedonia as the "real" Macedonia of Alexander The Great, but a late Slavic settlement. Another issue is that the Ancient Greeks created - almost from nothing - the first real civilization and rational political system, an amazing explosion of intelligence that emerges from the dark animal past of humanity. The Nazi race "scientists" tried to attribute this miracle to the Dorian "Nordic" invasion, since Greeks speak an Arian language. They attributed the late dullness of Greeks to mixing with Blacks. But the picture is much more complicated.
The Greeks themselves thought they came from upper Egypt - Ethiopia. The idea that they should have arrived from the cold North never passed by their minds, as they considered the Northern peoples savage Barbarians. Greeks themselves were not Nordic looking at all, but swarthy and black haired, as self-reported on the illustration above. HLA genes in Macedonians and the sub-Saharan origin of the Greeks (2001) was a study conducted by Dr. Arniaz and other scholars in a top flying Spanish University. This study uses HLA genes to establish the African dimension of the roots of ancient Greece.
According to the Arniaz study, …..Greeks are found to have a substantial relatedness to sub-Saharan (Ethiopian) people, which separate them from other Mediterranean groups. Both Greeks and Ethiopians share quasi-specific DRB1 alleles, such as *0305, *0307, *0411, *0413, *0416, *0417, *0420, *1110, *1112, *1304 and *1310. Genetic distances are closer between Greeks and Ethiopian/sub-Saharan groups than to any other Mediterranean group and finally Greeks cluster with Ethiopians/sub-Saharans in both neighbour joining dendrograms and correspondence analyses. The time period when these relationships might have occurred was ancient but uncertain and might be related to the displacement of Egyptian-Ethiopian people living in pharaonic Egypt. See Arnaiz-Villena A,et.al: HLA genes in Macedonians and the sub-Saharan origin of the Greeks. Tissue Antigens. 2001 Feb;57(2):118-27
Conclusion: We are all Africans, as the modern human race came out of Africa, Ethiopia to be precise, some 70,000 years ago. In that sense, ancient Greeks were right; moreover, they had no racial neurosis about it. They were a very notable people. Ultimately, we are all from Africa. The rest of the story is strives within the family.