Check my post on the page before this one for an answer on modern times. And watch out for Angola, they are becoming more self autonomous after nationalizing all their resources.

I got the impression you are the guy with that thesis but since you want to discuss it, in earnest you use "him" as a scapegoat. So you can check your thesis for holes without someone pulling the racism card and derailing the discussion.

I have to dissapoint you. I don`t know enough about the topic to refute it or confirm it.

Biological classification.  An ancient Egyptian is a modern Coptic.  Coptics are Caucasians based on the traits used to set up the classifications.  That said, the whole idea of "race" is very arbitrary and humans classifying themselves by chosen rules.  But the race classifications would make a Coptic a Caucasion.

Somalia, Ethiopia, the Songhai Empire of present-day Mali (Timbuktu, etc), the Sultanate of Zanzibar, Great Zimbabwe (medieval trading city that modern Zimbabwe is named for).

The nobel prizes, too, tend to be heavily European biased. Remember the year that the European Union as a whole won instead of Malala Yousafazi?

Then we have to realize that Europe did not set Africa up for success when they colonized them, nor when they left. They used the continent for raw materials and cheap labor, packed up, and left a society designed around cash crops and not much else. How many educated people are such societies going to produce compared to industrial and post-industrial Europe/Asia/North America?

Latin America has a similar yoke on her. How many Latinos (Central/South Americans in a broad sense) win such prizes?

One's capacity to achieve has nothing to do with the color of your skin. What you achieve, however, has everything to do with the conditions you are raised in, which black people as a whole (whether in or out of Africa) generally have as a disadvantage.

See also: Neil DeGrasse Tyson. Have your friend ask him whether blacks are dumber than non-blacks.

well we all came from Africa and at one period we all were black. that is if evolution theory is not mistaken.

This issue goes far deeper  education and environment. This goes into our DNA and the differences we have in regard to learning and ability. The problem is that we continue to live under illusion that we are all created equal and that simply is not the case. We all have different strengths and weaknesses and yes this can be applied race by race. Unfortunately, having a frank conversation about race in this country will never happen. If you need proof this simply look at what's happening already..people being called "racist" and people generally freaking out. The so-called racist was simply pointing out a few facts and it's hard to argue against them. For example; if you attempt to correlate race and poverty and then review them along racial lines you will see a disproportionate number of crime committed by blacks. Do your own honest research and then have a calm reasonable attempt at debunking using hard facts.

but is there not various evidence that points to them being black?

such as their descriptions of themselves, how other people described them ( greeks and romans for example ), how they depicted themselves, how the bible describes them etc

imo you can't look at how things are now and extrapolate that to how things were 1000s of years back... if we look at america for example, a few centuries ago whites had not established civilisation there, but they came and exterminated most of the indiginous people and set up their civilisation dramatically changing the american population

have to comment though on the irony of calling africa poor... when europeans steal most of the resources to enrich their countries, such as oil, gold, man power etc

I think that's a very hurtful and baseless accusation which I hope you will withdraw without pause. 

you haven't yet cited why egypt does not apply or sumer for that matter

those civilisations in some respects showed evidence of technology that even today we don't completely understand