NIgeria is a multi national country. It has over 300 tribes in it with the largest ones Hausa, Ibo and Yuruba (Fulani). It has become one country not so long ago. That is why NIgeria has so many challengies in its development, but it successfully and gradually overcomes them.
READ ALSO: List of major tribes in Nigeria article here: https://ask.naij.com/culture/list-of-major-tribes-in-nigeria-20-top-ones-i23412.html to get a detailed overview of the major tribes of Nigeria and a list of 20 tops ones.