African as a whole was among the best developed in the world, some years back. But, right now they have failed to increase human experience and awareness of the world around him.if African can avoid corruption or see corruption as an evil to them, they can still be among the best countries in the world.
Some years back? Definitely not. For the last few thousands of years, Africa has lagged behind in development. Initially the human civilization developed in China, India, Egypt, Japan and Mesopotamia. Europe was lagging behind but the renaissance during the middle ages allowed them to catch up. There were well developed civilizations in the new world (Aztecs, Mayas and Incas), but these were destroyed by the Europeans. Africa was nowhere in the picture.