2 Observable Impairements Why Does Africa Lag Behind The Rest Of The World In Virtually Every Observable Standard Of Progress?

Why does Africa lag behind the rest of the world in virtually every observable standard of progress? - 2 observable impairements

What we can reasonably from what follows, to shut down?

1) The African range is significantly lower in terms of economic, health, infrastructure, education, employment, etc.

2) African countries are mainly the black population from

What we can draw reasonable inferences, or hypotheses based on these facts?