>>512855511
Some say steel was invented there. Its a theory among antropologists. They have been producing iron for at least 3000 years, not preceded by a bronze age. Whether they learned this from the middle east or developed it on their own they are still able to master the production cycle and preserve the knowledge, which is something that africans get accused of not doing (i.e you give them a well and it soon breaks down and gets abandoned). For some reason this habit of forgetting doesnt happen with steel making. Might be more important than making wells