Which african people, who lived along the niger river and are named for a town in which their first artifact was found, utilized and improved the new iron technology during the iron age?

The African people, who lived along the Niger River and are named for a town in which their first artifact was found, that utilized and improved the new iron technology during the Iron Age was the Bantu.

Explanation:

The Nok culture was the first society to refine iron by smelting in West Africa before 1000 BC. Later the use of iron and bronze extended towards the south of the continent, reaching the South end towards year 200.

The widespread use of iron revolutionized the Bantu farming communities that adopted it, expelling the stone-hunter-gatherer societies of the Stone Age that were found in their expansion to cultivate larger savannah extensions. The Bantu, technologically superior, expanded throughout southern Africa and became the richest and most powerful indigenous people, producing iron in industrial quantities for use in weapons and tools.

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