WHICH African culture? The one in Egypt, Morocco, South Africa? Which country? Which tribe in Cameroon? Even the single countries have no ONE culture themselves. "Black" culture? Muslim culture? Ethiopian Christian culture? Egyption Coptic culture? Bantu, Masai, Somali? Samburu? TOO MANY cultures.
There is no one "African culture." Never has been, and, as long as there are Arabs, blacks and whites in that huge continent, I doubt if there ever will be on.
Plua, celebrating a culture of another continent with a MADE-UP celebration defeats the whole purpose of celebration. TRADITIONS are celebrated. There is no tradition, African, American or black, with this phoney-baloney holiday. It's all butthump.