People:

In Nigeria people are divided into ethic groups. There are an estimated 250 ethnic groups in Nigeria. Each inhabits a territory that it considers to be its own by right of first occupancy and inheritance. Individuals who are not members of a dominant group but who have lived and worked for several decades in the territory of the group are still considered to be aliens. There are three major ethnic groups in the country: the Hausa-Fulani, the Yoruba, and the Igbo.

Hausa are one of the most numerous groups in the country,that have become integrated with the smaller Fulani group, whose members conquered Hausaland in the early 19th century, the great majority of both are Muslims.

 Yoruba is another large and politically dominant group in southwestern Nigeria. Most Yoruba are farmers but live in urban areas away from their rural farmland. Each Yoruba subgroup is ruled by a paramount chief, or oba, who is usually supported by a council of chiefs. 

The third major ethnic group, the Igbo of southeastern Nigeria, lives in small decentralized and democratic settlements. The largest political unit is the village, which is sooner ruled by a council of elders rather than by a chief.
Neda Peneva 2022