Multiple choice How did iron metallurgy spread throughout Africa? Khoisan people of Swahili coast developed it independently Spread south via the Nile and Egypt Spread by Bantu migrations Berber tribes brought the technology to West Africa Reveal answer Fill a bubble to check yourself C Correct answer Explanation The spread of iron metallurgy in sub-Saharan Africa is historically linked to the Bantu migrations, which moved from West Africa across the continent, bringing agricultural and metallurgical technologies with them.