[9] Nok people may have developed terracotta sculptures, through large-scale economic production,[20] as part of a complex funerary culture[21] that may have included practices such as feasting.
[23] The Nok terracotta depiction of a figure with a seashell on its head may indicate that the span of these riverine trade routes may have extended to the Atlantic coast.
[23] In the maritime history of Africa, there is the earlier Dufuna canoe, which was constructed approximately 8000 years ago in the northern region of Nigeria; as the second earliest form of water vessel known in Sub-Saharan Africa, the Nok terracotta depiction of a dugout canoe was created in the central region of Nigeria during the first millennium BCE.
The development and sophistication of this civilization is evident in the bronze castings found in Igbo Ukwu, an area of Nri influence.
Edoland established a community in the Yoruba-speaking area east of Ubini before becoming a dependency of Benin Kingdom at the beginning of the 14th century.
By the 15th century it became an independent trading power, blocking Ife's access to the coastal ports as Oyo had cut off the mother city from the savanna.
Political and religious authority resided in the oba (king) who according to tradition was descended from Oduduwa the first ooni of ife.
From about the 8th century, adjacent village compounds, called Ilé, coalesced into numerous territorial city-states in which clan loyalties became subordinate to dynastic chieftains.
Urbanization was accompanied by high levels of artistic achievement, particularly in terracotta and ivory sculpture and in the sophisticated metal casting produced at Ilé-Ifẹ̀.
Prehistoric inhabitants adjusting to the encroaching desert were widely scattered by the third millennium BC, when the desiccation of the Sahara began.
Trans-Saharan trade routes linked the western Sudan with the Mediterranean since the time of Carthage and with the Upper Nile from a much earlier date, establishing avenues of communication and cultural influence that remained open until the end of the 19th century.
The most powerful of these states were Ghana, Gao, and Kanem, which were not within the boundaries of modern Nigeria but indirectly influenced the history of the Nigerian savanna.
Following the breakup of Mali, a local leader named Sonni Ali founded the Songhai Empire in the region of middle Niger and the western Sudan and took control of the trans-Saharan trade.
Sunni Ali seized Timbuktu in 1468 and Jenne in 1473, building his regime on trade revenues and the cooperation of Muslim merchants.
[30] Although these western empires had little political influence on the Nigerian savanna before 1500, they had a strong cultural and economic impact that became more pronounced in the 16th century, especially because these states became associated with the spread of Islam and trade.
The mai employed his mounted bodyguard and an inchoate army of nobles to extend Kanem's authority into Bornu.
Despite its relative political weakness in this period, Bornu's court and mosques under the patronage of a line of scholarly kings earned fame as centers of Islamic culture and learning.
By the 11th century some Hausa states - such as Kano, Katsina, and Gobir - had developed into walled towns engaging in trade, servicing caravans, and the manufacture of various goods.
Armed conflict was usually motivated by economic concerns, as coalitions of Hausa states mounted wars against the Jukun and Nupe in the middle belt to collect slaves or against one another for control of trade.
Acceptance of Islam was gradual and was often nominal in the countryside where folk religion continued to exert a strong influence.
Nonetheless, Kano and Katsina, with their famous mosques and schools, came to participate fully in the cultural and intellectual life of the Islamic world.
The Fulani came from the Senegal River valley, where their ancestors had developed a method of livestock management based on transhumance.
There they constituted a devoutly religious, educated elite who made themselves indispensable to the Hausa kings as state advisers, Islamic tribunes, and teachers.