yellow people has their own culture. ninja/shaolin monk/samurai is a trope already. what blakpipo bring to the table of races and classes? naked tribal spearchukka and voooooooodooooooooo?
I suppose we're all a bit ignorant about African history (that goes for black Americans as well) but help is on the way:
https://en.wikipedia.org/wiki/History_of_science_and_technology_in_Africa (a fairly long text including all the external links, but since this thread is about being well-read that shouldn't scare anyone).
i asked which unique class nigga could be realisticaly in role-playing rpg game except blackwashed bishop/knight/samurai.
Sorry I misunderstood, the above only applies to African RPGs of course.
In Medieval East Asia there normally shouldn't be any Africans, unless the RPG was about the Ming dynasty's expeditions to East Africa:
https://en.wikipedia.org/wiki/Zheng_He#Expeditions
It also seems Somalia traded with India and China, but I can't make out how far the Somalians sailed themselves:
https://en.wikipedia.org/wiki/Maritime_history_of_Somalia
In Medieval West Asia there were likely quite a few Africans; especially from the Arabic slave trade, but maybe also a few Islamic scholars from the Mali Empire, so I wouldn't rule them out (as Muslims) in an RPG about the Crusades. But in Medieval Europe the number of Africans were likely too few to be noticeable in a RPG game, unless the game was specifically about such a historic individual (and/or the developers have an agenda).