15,000 BCE: (The Proto-North Erythraic Speakers as the People Who Brought Grain Harvesting to Egypt — The Linguistic Maps of the Successive Earliest Periods …

15,000 BCE: (The Proto-North Erythraic Speakers as the People Who Brought Grain Harvesting to Egypt — The Linguistic Maps of the Successive Earliest Periods of Afrasian Divergence Identifying the Divergence of Proto-North Erythraic Speakers Out of the Erythraic Branch and Their Inferred Move Northward to Egypt via the Red Sea Hills as Mapping Directly onto the Proposed Routes of Spread of Grain-Harvesting Subsistence from the Horn of Africa to Egypt): Who were the specific people who brought this economy to Egypt at around 15,000 BCE? The linguistic maps of the successive earliest periods of Afrasian divergence present one striking answer. One linguistic expansion in particular — the divergence of the proto-North Erythraic speakers out of the Erythraic branch of the family and their inferred move northward to Egypt via the Red Sea Hills — maps right onto the proposed routes of spread of grain-harvesting subsistence northward out of the Horn of Africa to Egypt. The convergence is too precise to be coincidental. The linguistic evidence independently identifies a northward migration from the Horn to Egypt at roughly this period. The archaeological evidence independently identifies the arrival of grain-harvesting technology in Egypt at roughly this period. The climatic evidence independently identifies the opening of a viable northward route through the Red Sea Hills at roughly this period. Three lines of evidence, three independent methodologies, one conclusion: the proto-North Erythraic speakers — the ancestors of the ancient Egyptians, the Semites, the Chadic and Amazigh peoples — were the grain harvesters who carried this revolutionary subsistence economy from the Ethiopian Highlands to the Nile Valley. They were Africans, moving through African landscapes, exploiting African grains, speaking an African language. And the civilization they would eventually build on the banks of the Nile was the culmination of an African journey that began twenty thousand years ago in the highlands of the Horn.