The KOLOnizers(“potters”) knew that;
The Yorubas have very high intellect.
The Igbos are wise.
Fulanis are more “cattle” oriented.
..so they went for the most malleable; that can easily be molded(Romans 9:21)
Romans 9:21 “Hath not the potter power over the clay, of the same lump to make one vessel unto honour, and another unto dishonour?”
Jehovah Yahweh Reigns!