While King of The Dead has many fans Googling Egyptian coffee table book references sometimes it is best to go back to why Wakanda and it's ever-changing deconstructed history is such a hot button!
http://en.wikipedia.org/wiki/Colonisation_of_Africa
When Stan Lee and Jack Kirby co-created this magnificent character perhaps they too were exploring concepts and ideologies concerning Africa based upon what limited knowledge they had of that vast continent!
Considering how many attributes that they gave the Black Panther they can be forgiven most of the early stereotypes they introduced within the story arcs!
When Black writers like Priest, Hudlin and McDuffie helmed the character they would often bring into focus certain things that many black readers understood clearly that might have flown over the heads of those not in the know of specific things that related to black culture!
The problems that did arise is that sometimes the Black Panther seemed more African American than African but at least they were moving more towards an authentication of the character's true values as a king, a husband, a scientist and a super hero!
Despite the fact the character was created by white Americans and spoke regular english as a preferred language it gained a cult following of diehard fans wanting to see the best that this experience could offer!
By challenging the Fantastic Four with minimal powers a precedent was set that would disrupt the balance forever within the Marvel universe... You don't just crawl out of a jungle half dressed pointing a spear and do something that bold unless you have a history that makes such a reality remotely possible!
T'challa was shown to be familiar with advanced tech as if this was his birthright therefore during all that African colonization Wakanda had to be set apart to display such ingenuity by someone willing to duel it out with a cosmic rays enhanced first family of super heroes!
A couple of centuries does not cut it because then all of Africa would be on that same level seeing Wakanda do it just yesterday in the midst of the slave trade!
In the super hero world just as you account for all the things that have gone on in New York City like the World Trade Center tragedy you also have to account for the black experience either African American or African when scripting black characters even if the thought scares you or throws you off your game!
Blue Marvel did this magnificently...