Did the ancient Egyptians use imported iron imported from sub-Saharan Africa to build the Great Pyramids?
Cutting with bronze or iron:
Antiquity of iron in Africa (article says 5,000 years!) from UNESCO
Here is a 1911 encyclopedia that supports the idea that iron was supported from "black Africa". I read somewhere else that Seth is associated with the origin of iron
"This idea of impurity would seem a further proof of the African origin of iron. It was attributed to Seth, the spirit of evil who according to Egyptian tradition governed the central deserts of Africa."
"Around the same time some Egyptologists, notably the Frenchman Gaston Maspéro, concluded that ancient Egypt had learned its ironworking from black Africans to the south"
"The skills that these ancient prospectors developed are reflected in the fact that by the time the European settler community arrived in the region almost every gold-bearing quartz outcrop had already been worked 92, nearly every viable outcrop of copper-bearing rock had been exploited 93, and hardly a tin lode of any importance was left untouched 94."
"Now controversial findings from a French team working at the site of Ôboui in the Central African Republic challenge the diffusion model"
The Egyptians did associate Seth with iron and associated Seth with central Africa