Frogman, you're wrong right off the bat; first all, there is no one "African rhythm", there are more different African rhythms than you can shake a stick at, some of them are in Brazil, but no longer in Africa.
You have to know something about slavery in order to know about African drumming; that's because Africa is a continent, and not a country. Before slavery, there were villages and tribes, not countries. The drummers were primarily for the different dances they did in the villages after supper. If you recall "Roots", Kunta Kente spoke of the "village" he was from, not the country.
According to Roots, Kunta Kinte was born circa 1750 in the Mandinka village of Juffure, in the Gambia. One day in 1767, while Kunta was searching for wood to make a drum for his younger brother, four men chased him, surrounded him, and took him captive.
Kunta Kinte - Wikipedia
There is dance that goes with the drumming from that village; it is still done today.
There were countless villages that left Africa on that long boat ride to "The Americas". Some villages were transported to "The Americas", and what ever existed in them, no longer resides in Africa; but can be found in "Bahia" in Brazil.
"Capoeira" rhythms in Brazil are most fascinating; check out "Zum Zum Zum";
https://www.youtube.com/watch?v=WkZPiZ59lME
https://www.youtube.com/watch?v=6H0D8VaIli0
Frogman, you present the most erroneous stuff in such a positive fashion that I almost believe it.
After your response, we should get back to what this thread was intended to be about; which means that I'll only respond if it's something a "jazz aficionado" can use.