While the vast majority of Nigerians are of African descent, Nigeria is a mosaic of over 250 ethnic groups with diverse histories and cultural practices. Major groups include the Hausa-Fulani (north, Afro-Arab cultural blend), Yoruba (southwest), Igbo (southeast), Kanuri (northeast, Lake Chad), Ibibio, Tiv, Ijaw, and many others. Centuries of trade, migration, and intermarriage—especially in the north with trans-Saharan contacts—have created genetic and cultural diversity within these groups. Some individuals have mixed ancestry (Arab, Berber, European), but the nation's identity is overwhelmingly African. This rich tapestry makes Nigeria one of Africa's most culturally vibrant nations.