There are not very many achievements of Ancient Africa, but there are some. Here are a number of their achievements, some weapons they used were spears, and knives both were made out of stone, vines, and wood. They would use those weapons for tools, also to build a house, more weapons, or anything else they would need to make.
Africa is one of the worlds first known continents, which means they had to create something because they have been around for so long. For example the pyramids which are one of the worlds greatest wonders.
Then there are the three civilizations Ghana, Mali, and Songhai which ended up destroying each other one by one each more superior than the other. Ghana had made a type of trade called silent barter which helped the other civilization from fighting. This is why Africa is so rich with history.