Which civilization do you think had the greatest impact on Africa?

Explanation:

The Nok Civilization is considered to be one of the most advanced ancient sub-Saharan civilizations in African history. Beginning some time around 1500 BC, it was largely concentrated in what is now Nigeria but produced some of the first sub-Saharan iron smelting and terracotta architecture.

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.