Exactly...any type of study of culture is going to lead to an automatic bias. THis is like Anthropology 101 stuff.
What is the backround of the maker of the video??? What is his purpose in making this video??
If 'school' is a watered down 'eurocentric' version of things, in your own words, would these videos be a 'doctored up afrocentric' version of things???
So is the single celled organism superior to the human being because it came first???
Something always came from something else.....so lets say blacks were in the AMericas before the red indians...well which blacks, and which blacks amongst this tribe and amongst that tribes family etc. etc.
You can go on and on, and if you just want to trace it for pure historical purposes than great.
But if you are doing it in an attempt to prove that your people were greater, than your work more than likely will be biased. Especially the farther back you go.