|William J. Waterman|
|All four were qualified scientists of their time. Professors, Doctors, Engineers, Africanists, Ethnologists.
|Added together, they have analyzed thousands Africanists posts,|
scientific works and travelogues.
|Their evaluations are all united in this database.|
Over 8800 tribes. Over 12.000 geographical thermes.
|Placed together and in opposite.|