If you hit bottom, you find out there's more. That's what's happened to Nigeria. Two of the major rivers of Africa, the Niger and the Benue, coming from opposite sides of this rectangle and meeting in the middle of the country and joining, and flowing south into the sea. But the Nigerian stool refuses to stand on three legs. It's constantly trying to stand on two legs and always falling down.
Current wisdom says there are two leading ethnic groups, the Hausa and the Yoruba.
The Igbo have been forgotten. Now, Nigeria can't work with two ethnic groups alone. It needs the third for that stability. Now, there's nothing wrong with ethnicity, there's nothing wrong with religion, but when bad politicians get hold of these factors, then you have a very, very explosive mixture. I understand came out of squabbling over the market.