The Niger and Benue Rivers come together in the center of the country, creating a "Y" that splits Nigeria into three separate sections.In general, this "Y" marks the boundaries of the three major ethnic groups, with the Hausa in the north, the Yoruba in the southwest, and the Igbo in the southeast.The small ethnic groups living along the coast, such as the Ijaw and the Kalabari, are forced to keep their villages small due to lack of dry land.
The three largest and most dominant ethnic groups are the Hausa, Yoruba, and Igbo (pronounced ee-bo).
Nigeria has three main environmental regions: savanna, tropical forests, and coastal wetlands.
These environmental regions greatly affect the cultures of the people who live there.
Prior to colonization, these languages were the unifying languages of the southwest and southeast, respectively, regardless of ethnicity.
However, since the coming of the British and the introduction of mission schools in southern Nigeria, English has become the language common to most people in the area.
It is bordered on the west by Benin, on the north by Niger and Chad, and on the east by Cameroon.