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Most of the terracotta figures they left are standing, potentially reaching about 121 cm (4 feet), and are often depicted in religious poses, typically kneeling completely or on one knee. This pattern is seen across West African cultures and is typically linked to ancestral worship. These ancestral terracotta figures mark emergent social hierarchies and the religious legitimation of power. Advanced iron-smelting techniques were discovered at the site of Taruga; these include furnaces and tools that reflect emerging specialization and artisanship.<ref name=":2" />
Most of the terracotta figures they left are standing, potentially reaching about 121 cm (4 feet), and are often depicted in religious poses, typically kneeling completely or on one knee. This pattern is seen across West African cultures and is typically linked to ancestral worship. These ancestral terracotta figures mark emergent social hierarchies and the religious legitimation of power. Advanced iron-smelting techniques were discovered at the site of Taruga; these include furnaces and tools that reflect emerging specialization and artisanship.<ref name=":2" />
 
[[File:Nok.jpg|thumb|Terracotta sculpture from the Nok civilization, dating back to a period between 500 BCE and 200 CE. ]]
The Nok were among the first in the world to transition directly from stone to iron smelting, skipping the Copper and Bronze Ages. However, this sequence of “stone to copper to bronze to iron” is a Eurocentric concept, as material conditions such as the availability of ore, ecological constraints, and social needs dictate the sequence and trajectory of technological development. Archaeological evidence of iron-smelting furnaces at Taruga dates back to at least 500 BCE. This evidence also shows that they were a farming society that cultivated pearl millet and cowpeas. For reasons unknown to historians, they stopped leaving records around 500 BCE.<ref name=":2" />
The Nok were among the first in the world to transition directly from stone to iron smelting, skipping the Copper and Bronze Ages. However, this sequence of “stone to copper to bronze to iron” is a Eurocentric concept, as material conditions such as the availability of ore, ecological constraints, and social needs dictate the sequence and trajectory of technological development. Archaeological evidence of iron-smelting furnaces at Taruga dates back to at least 500 BCE. This evidence also shows that they were a farming society that cultivated pearl millet and cowpeas. For reasons unknown to historians, they stopped leaving records around 500 BCE.<ref name=":2" />  
==== Igbo-Ukwu Civilization ====
==== Igbo-Ukwu Civilization ====
The Igbo-Ukwu Civilization was an early Iron Age state in southeastern Nigeria, known for its detailed bronze artifacts created using the cire perdue technique. Discovered by accident in 1938, these artifacts included staff heads, ceremonial vessels, and roped pots decorated with insects and geometric patterns. The Igbo possessed a very unique metallurgical tradition, as they used a leaded bronze alloy instead of the copper alloys common in West Africa at the time. This unique metallurgy reflects a high degree of craft specialization and artisanship necessary to maintain these workshops. Specifically, the use of leaded bronze points to experimental alloying techniques designed to produce intricate castings.<ref name=":3">Shaw, Thurstan. 1970. Igbo-Ukwu. <nowiki>https://ehrafarchaeology.yale.edu/traditions/fa75/documents/009</nowiki>.</ref>
The Igbo-Ukwu Civilization was an early Iron Age state in southeastern Nigeria, known for its detailed bronze artifacts created using the cire perdue technique. Discovered by accident in 1938, these artifacts included staff heads, ceremonial vessels, and roped pots decorated with insects and geometric patterns. The Igbo possessed a very unique metallurgical tradition, as they used a leaded bronze alloy instead of the copper alloys common in West Africa at the time. This unique metallurgy reflects a high degree of craft specialization and artisanship necessary to maintain these workshops. Specifically, the use of leaded bronze points to experimental alloying techniques designed to produce intricate castings.<ref name=":3">Shaw, Thurstan. 1970. Igbo-Ukwu. <nowiki>https://ehrafarchaeology.yale.edu/traditions/fa75/documents/009</nowiki>.</ref>
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Ife was designed in the form of a giant, centrally focused spoked wheel. The center housed the Afin, the royal palace complex, from which infrastructure radiated outward in all directions. The urban hub was surrounded by defensive moats and walls. The ruling class controlled this infrastructure and revered it as a spiritual epicenter. This sacred geography served to reinforce state power: the central palace functioned as the hub for organizing extraction, redistribution, and control, while roads sprawling from the center facilitated the movement of goods and labor to markets. The surrounding walls protected stored surplus, and these cosmological assertions naturalized class domination.<ref name=":6" />
Ife was designed in the form of a giant, centrally focused spoked wheel. The center housed the Afin, the royal palace complex, from which infrastructure radiated outward in all directions. The urban hub was surrounded by defensive moats and walls. The ruling class controlled this infrastructure and revered it as a spiritual epicenter. This sacred geography served to reinforce state power: the central palace functioned as the hub for organizing extraction, redistribution, and control, while roads sprawling from the center facilitated the movement of goods and labor to markets. The surrounding walls protected stored surplus, and these cosmological assertions naturalized class domination.<ref name=":6" />
==== Benin Empire ====
==== Benin Empire ====
[[File:Benin Busts.jpg|thumb|371x371px|Busts depicting a Oba (King) and a Iyoba (Queen Mother), cast in brass using the traditional lost-wax technique from the Benin Empire. ]]
To the east of Ife, the Benin Empire emerged, with the Edo people starting as a union of villages that consolidated into one large empire ruled by the Oba (emperor). Benin reached its peak in the 15th and 16th centuries. The empire was centralized and militarized, protected by the Walls of Benin, similar to Ife. This consolidation resulted from changing property relations, trade expansion, and control over surplus extraction and trade routes. The Walls of Benin were constructed through organized labor and corvée obligations.<ref name=":7">Edigin, C., & Edigin, C. (2025). The Obas of Benin (1200 to the present) : A Brief History of the Rulers of A West African State for Eight Centuries. BlackPast. Retrieved from <nowiki>https://blackpast.org/global-african-history/the-obas-of-benin-a-brief-history-of-the-rulers-of-a-west-african-state-for-eight-centuries</nowiki></ref>
To the east of Ife, the Benin Empire emerged, with the Edo people starting as a union of villages that consolidated into one large empire ruled by the Oba (emperor). Benin reached its peak in the 15th and 16th centuries. The empire was centralized and militarized, protected by the Walls of Benin, similar to Ife. This consolidation resulted from changing property relations, trade expansion, and control over surplus extraction and trade routes. The Walls of Benin were constructed through organized labor and corvée obligations.<ref name=":7">Edigin, C., & Edigin, C. (2025). The Obas of Benin (1200 to the present) : A Brief History of the Rulers of A West African State for Eight Centuries. BlackPast. Retrieved from <nowiki>https://blackpast.org/global-african-history/the-obas-of-benin-a-brief-history-of-the-rulers-of-a-west-african-state-for-eight-centuries</nowiki></ref>



Latest revision as of 00:55, 11 September 2026

Federal Republic of Nigeria
Jamhuriyar Tarayyar Najeriya
Ọ̀hàńjíkọ̀ Ọ̀hànézè Naìjíríyà
Orílẹ̀-èdè Olómìniira Àpapọ̀ Nàìjíríà
Flag of Federal Republic of Nigeria
Flag
Coat of arms of Federal Republic of Nigeria
Coat of arms
Location of Federal Republic of Nigeria
CapitalAbuja
Largest cityLagos
Official languagesEnglish
Recognised national languagesHausa
Igbo
Yoruba
Demonym(s)Nigerian
Dominant mode of productionCapitalism
GovernmentFederal presidential republic
• President
Bola Tinubu
Area
• Total
923,769 km²
Population
• 2023 estimate
230,842,743


Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa situated south of the Sahel with a southern coast on the Atlantic Ocean. Nigeria borders Cameroon to the east, Chad to the northeast, Niger to the north and Benin to the west. Since its independence from the British in 1960, it has been dominated by neocolonialism.[1]

History[edit | edit source]

Precolonization[edit | edit source]

Human societies have been present throughout the region now known as Nigeria for several thousand years. The earliest known human remains in the region, found in the Iwo Eleru rock shelter in what is now southwestern Nigeria, have been dated to around 9000 BCE in the Late Stone Age. Pottery was developed by about 3000 BCE in most areas of the region. Agriculture developed between 4000 and 1000 BCE, depending on the area. Evidence of iron-working and iron tools dates from approximately the seventh century BCE.[2] The Nok culture flourished from the 5th century BCE to the 2nd century CE.[3]

The foundation of centralized states such as Kanem, Borno, Benin, Ife, Oyo, and the Hausa city states occurred from approximately 1000 to 1500 CE. Islam was introduced into savanna and Sahel states of northern Nigeria circa 1100 to 1400 CE. The region was engaged in the trans-Saharan trade of various goods across the Sahara desert, this trade reaching a notable "golden age" from 1300-1600. Though this trade continued through the nineteenth century, it became diminished after the rise of coastal trade with Europeans in the 1400s.[2]

Nok Civilization[edit | edit source]

The Nok were one of the earliest known ironworking civilizations in West Africa. Traced to the Jos Plateau of northern Nigeria, their early development of ironworking may be linked to an intensification of local production, population pressure, and regional trade networks. This is evidenced by their cultivation of grains and oil seeds, archaeological findings of tin mining, and finely crafted terracotta figures featuring detailed facial expressions, hairstyles, and ornaments. Around 500 CE, the Nok stopped leaving records, potentially due to migration, assimilation, or changing trade routes, which may have been connected to how their society’s class stratification was reorganized.[4]

Most of the terracotta figures they left are standing, potentially reaching about 121 cm (4 feet), and are often depicted in religious poses, typically kneeling completely or on one knee. This pattern is seen across West African cultures and is typically linked to ancestral worship. These ancestral terracotta figures mark emergent social hierarchies and the religious legitimation of power. Advanced iron-smelting techniques were discovered at the site of Taruga; these include furnaces and tools that reflect emerging specialization and artisanship.[4]

Terracotta sculpture from the Nok civilization, dating back to a period between 500 BCE and 200 CE.

The Nok were among the first in the world to transition directly from stone to iron smelting, skipping the Copper and Bronze Ages. However, this sequence of “stone to copper to bronze to iron” is a Eurocentric concept, as material conditions such as the availability of ore, ecological constraints, and social needs dictate the sequence and trajectory of technological development. Archaeological evidence of iron-smelting furnaces at Taruga dates back to at least 500 BCE. This evidence also shows that they were a farming society that cultivated pearl millet and cowpeas. For reasons unknown to historians, they stopped leaving records around 500 BCE.[4]

Igbo-Ukwu Civilization[edit | edit source]

The Igbo-Ukwu Civilization was an early Iron Age state in southeastern Nigeria, known for its detailed bronze artifacts created using the cire perdue technique. Discovered by accident in 1938, these artifacts included staff heads, ceremonial vessels, and roped pots decorated with insects and geometric patterns. The Igbo possessed a very unique metallurgical tradition, as they used a leaded bronze alloy instead of the copper alloys common in West Africa at the time. This unique metallurgy reflects a high degree of craft specialization and artisanship necessary to maintain these workshops. Specifically, the use of leaded bronze points to experimental alloying techniques designed to produce intricate castings.[5]

Excavations at elite burial sites such as Igbo Richard and Igbo Isaiah revealed over 165,000 glass beads. Because glassmaking was not native to the region, these beads were likely imported from Egypt, Venice, or West Asia. This indicates that Igbo-Ukwu was embedded in an interregional trade network across the Sahara. Furthermore, instances of glass beads from Islamic-period production centers, such as Fustat in Egypt, suggest a long-distance ancient interconnectivity that existed long before modern imperialism.[5]

Three areas were excavated in the 1960s. The first, Igbo Isaiah, was a shrine containing ritual regalia and finely crafted bronze artifacts. The second, Igbo Richard, consisted of burial chambers belonging to the nobility, most likely the Eze Nri (priest-king), who was buried in a seated position and fully dressed in regalia. The third, Igbo Jonah, was a disposal pit containing pottery, bones, and bronze fragments. The Eze Nri and the nobility most likely appropriated ritual regalia to legitimize their class rule through spiritual and ceremonial means.[5]

Igbo-Ukwu blacksmiths used the cire perdue, or lost-wax, method, demonstrating the ability to cast objects just a few millimeters thick. They produced highly realistic renderings of flies, beetles, and grasshoppers in bronze and iron. They typically used a leaded bronze alloy (copper, tin, and lead), which allowed them to create more detailed molds. These artisans developed their technical knowledge through patronage networks that funded luxury production, compensating the smiths to create these elaborate artworks.[5]

The findings of 165,000 glass beads and copper supplies indicate that Igbo-Ukwu was a terminal shipment hub for global trade routes. These beads originated from Fustat, and the Igbo-Ukwu people traded ivory and spices in exchange for these glass beads and copper. These goods most likely moved through relays rather than direct ship-to-shore trade. The excessive quantity of glass beads implies that the nobility hoarded and ritualized their wealth in pursuit of class differentiation.[5]

Kingdom of Nri[edit | edit source]

Shortly after Igbo-Ukwu was established, the Kingdom of Nri emerged as a highly religious and influential state in Igboland, Nigeria. Nri was a theocratic state ruled by the Eze Nri. Similarly to Igbo-Ukwu, the kingdom expanded through religion, diplomacy, and control over trade routes. Nri's religious-political mechanisms such as ritual purification, taboos, and ritual legitimization formed the basis for its expansion and influence. However, this ritual authority rested upon alliances with militarized states and sanctions, as Nri controlled key trade routes; thus, despite its non-violent expansion, it still exercised coercive authority.[6]

Nri was considered a sacred sanctuary where murder and any bloodshed were taboo, and it served as a refuge for outcasts, fugitives, and enslaved people. Nri priests traveled across Igboland to perform ritual purifications, cleanse communities of alu (taboo), and bless local leaders. The Eze Nri held spiritual "control" over the Nri Kingdom's agriculture, specifically yam cultivation. However, this control was diffuse: ritual networks and priests extended their influence, and the regulation of the agricultural calendar was binding on surrounding communities subject to its authority. The Eze Nri mainly embedded ritual cosmology into the agricultural calendar to stabilize class relations through tributes, labor obligations, and rituals.[6]

There is cultural and material continuity between Igbo-Ukwu and Nri. Material wealth including over 800 detailed bronze castings, bronze staff heads, and ceremonial vessels supports the existence of long-distance exchange networks. Some theories link Igbo-Ukwu as the direct precursor to the Kingdom of Nri.[6]

The Kingdom of Nri lacked a police-like force but enforced a law based on spiritual ecology: certain animals and trees were sacred, and harming them was considered criminal. When conflicts arose between two villages within Nri, mediators would plant an Omu, a sacred palm frond. Crossing this palm frond constituted committing a sin, as it meant an affront to the gods. Nri priests operated a collateral system for trading, which created a credit-based economy. Though it is unknown how this credit-based system favored a particular social group, it likely favored the ruling class.[6]

Nri priests preached that all deities were subordinate to one supreme creator, a concept known as Chukwu which allowed people from all clans to unite under a shared religion, facilitating safety in commercial and religious spaces. However, the decline of the Kingdom of Nri shifted the power balance across the broader Igbo region. The Aro Confederacy used Abam, Ohafia, and Edda warriors to militarize trade and establish themselves as a coercive power that the Nri Kingdom's ritual and religious status could not withstand.[6]

14 Hausa Kingdoms[edit | edit source]

The Fourteen Hausa Kingdoms emerged in northern Nigeria around the 11th century as a network of independent city-states formed by the Hausa people. According to the Bayajidda legend, these seven city-states originated as the Hausa Bakwai, seven legitimate states including Kano, Katsina, Zaria, and Gobir which developed into vast walled city-states. These cities became important nodes along trans-Saharan trade routes, where they exchanged gold, salt, leather, and dyed textiles with merchants from North Africa and the Middle East. This trade generated fortunes and empowered a local ruling class whose control over surplus production and access to trade routes underpinned the rise of these city-states. Meanwhile, the Bayajidda legend served to legitimize the nobility's rule, functioning as a charter myth. [7]

Each kingdom had its own Sarki (monarch) and specialized function. For example, Zaria was known for its military force, particularly its Yan Lifida (heavily armored cavalry), while Kano and Katsina served as economic, manufacturing, and trading hubs. Gobir acted as a northern shield, defending the city-states from external threats. This functional distribution reflected a division of labor between political-military centers and commercial centers. The arrival of Islam, brought by Wangara merchants from Mali, transformed the Hausa city-states through the introduction of Islamic law, Arabic script, and bureaucratic systems. These developments turned Kano into a major center of Islamic scholarship and supported legal and accounting practices, long-distance credit, record keeping, and state administration, all of which strengthened the ruling elite's ability to extract surplus. [7]

Hierarchically, society was structured with the Sarakuna (nobility) at the top, followed by the Masu Sarauta (bureaucratic elite). The majority of the population comprised the Talakawa (free men), including farmers, artisans, and merchants. At the bottom were the Bayi (slaves). However, this system differed significantly from the chattel slavery of the transatlantic slave trade: enslaved individuals could own property, rise to higher military and administrative positions, and were integrated into households. They were not bound to enslavement for life, nor were their children; they could earn wages and purchase their freedom. Nevertheless, this forced labor likely persisted as a source of surplus extraction and political power. Even slaves who rose to royal status as bodyguards exemplify how the state socialized the ownership of coercive force, as monarchs depended on loyal personal guards.[7]

Farmers actively practiced fadama (floodplain) agriculture using a shadoof, a counterweighted sweep-pole tool that enabled them to lift water from rivers and wells to irrigate crops year-round. This consistent irrigation allowed for the cultivation of cotton, indigo, sorghum, and millet. Alongside this, state-mandated communal rumbu (granaries) helped prevent famines during droughts. This food surplus enabled urban growth and artisan specialization, while the granaries allowed the state to collect taxes and manage populations during times of scarcity.[7]

Militarily, the Hausa foundation rested on heavy cavalry; both horses and riders were armored in quilted armor layered with chainmail, designed to absorb arrows and spears. Because the cities were surrounded by massive walls, military offensives often took the form of sieges. These walls and the practice of siege warfare reflect the state's protection of surplus goods stored within urban centers. Armies frequently employed scorched-earth strategies, using incendiary arrows to burn rooftops beyond the walls and destroying nearby farmland to starve besieged cities into submission.[7]

Ife Empire[edit | edit source]

The Ife Empire, located in southwestern Nigeria, was considered the spiritual and religious hub for the Yoruba people. According to Yoruba cosmology, Ife was the exact location where the deity Oduduwa descended to create the world. The Ooni (ruler) held religious authority over the Yoruba, and this sacred kingship served as a tool for fusing religion and political legitimacy. The charter myth of Oduduwa functioned as an ideological justification for the ruling class.[8]

Ife experienced a golden age of art between the 12th and 14th centuries. Ife artisans created terracotta, stone, and copper sculptures depicting rulers with veiny facial markings and detailed crowns. The realism was so striking that European colonialists, driven by racist assumptions, incorrectly attributed the works to traveling Greeks or Egyptians. This highlights the European colonialist ideology that denied African technological and artistic agency and recognition. Ife also developed intricate urban planning during this period, constructing elite courtyards and sacred shrines paved with finely arranged potsherds and quartz pebbles.[8]

All of this artistic flourishing indicates a stratified society with a clear division of labor and an elite wealthy enough to sponsor specialist artisans. The urban planning expressed the accumulation of labor time and resources extracted from the masses, funding the ruling class's displays of grandeur and social cohesion.[8]

Ife was an industrial hub that generated significant regional wealth. Excavations at Igbo-Olokun reveal vast industrial workshops where artisans smelted silica to create Segi (vibrant blue dichromatic glass beads), which were used as currency and exported across West Africa. These workshops produced commodities and luxury goods that reinforced the status of Ife’s ruling class and expanded regional trade. This activity fed into long-distance trade networks that sustained their centralized political economy.[8]

Metallurgically, some sculptures were cast from nearly pure copper. Pure copper has a high melting point and oxidizes quickly when molten, so successfully casting it using the lost-wax technique required a high level of thermodynamic control and mastery. This expertise exceeded the capabilities of contemporary medieval European foundries, which were mainly limited to casting bells and cannons using bronze and tin alloys. This level of specialized metallurgy required organized labor and the transmission of knowledge among artisans, all of which were underpinned by the economic conditions of the time.[8]

Ife was designed in the form of a giant, centrally focused spoked wheel. The center housed the Afin, the royal palace complex, from which infrastructure radiated outward in all directions. The urban hub was surrounded by defensive moats and walls. The ruling class controlled this infrastructure and revered it as a spiritual epicenter. This sacred geography served to reinforce state power: the central palace functioned as the hub for organizing extraction, redistribution, and control, while roads sprawling from the center facilitated the movement of goods and labor to markets. The surrounding walls protected stored surplus, and these cosmological assertions naturalized class domination.[8]

Benin Empire[edit | edit source]

Busts depicting a Oba (King) and a Iyoba (Queen Mother), cast in brass using the traditional lost-wax technique from the Benin Empire.

To the east of Ife, the Benin Empire emerged, with the Edo people starting as a union of villages that consolidated into one large empire ruled by the Oba (emperor). Benin reached its peak in the 15th and 16th centuries. The empire was centralized and militarized, protected by the Walls of Benin, similar to Ife. This consolidation resulted from changing property relations, trade expansion, and control over surplus extraction and trade routes. The Walls of Benin were constructed through organized labor and corvée obligations.[9]

Benin's ruling class commissioned thousands of ceremonial objects, portrait heads, and bronze and brass plaques that recorded and glorified the Oba. These works served as reflections of a society that had concentrated wealth and artisan labor under court patronage. Benin City, or Edo, was designed with mathematical precision in its infrastructure, featuring a vast grid system of straight avenues intersecting at right angles. The streets were illuminated at night with palm oil lamps. All of this artistic flowering was born out of the political economy of tribute, trade, and royal monopolies.[9]

Benin's nobility had the luxury of living in houses with advanced impluvium systems, courtyards, sloping roofs for rainwater harvesting, and natural air conditioning. These luxuries were concentrated among the ruling class, alongside their control over the state's wealth through a system of artisan wards and guilds, a form of labor organization in which artisans were integrated into the palace and trade networks. The nobility organized the artisans' expertise while constraining their autonomy and appropriating their work for their own interests.[9]

Ivory, pepper, and leopard skins were luxuries strictly under royal monopolies; no merchant could trade with foreigners without the permission of the nobility. The empire was divided into multiple palace societies, including the Iwebo. Royal monopolies over trade with foreigners were attempts to centralize the growing surplus and represented a strategy to tax and appropriate the gains from long-distance trade. Every artisan belonged to a specific guild in a designated district that answered directly to the crown. These monopolies also made the state a mediator between producers and emerging global capital, which would eventually facilitate colonialism.[9]

When the Portuguese began interacting and trading with Benin, the state demanded payment in manillas, copper and brass tokens. However, instead of using them only as currency, the raw material from the manillas was accumulated in royal foundries, creating an excess of metallurgical art. Oba Esigie created the honorary title of Iyoba (Queen Mother) to honor his mother, Queen Idia, who used her knowledge to secure the throne for him during a civil war.[9]

The Queen Mother became one of the most powerful figures in the empire. She was granted her own Usulu (independent town) near the capital, her own palace, and her own chiefs. She was also allowed to hold political office and sponsor her own artisan guilds. However, her role revealed limits: her political agency was dependent upon the emperor's will, as tradition dictated that she could not look upon her son's face once he was crowned.[9]

Neocolonization[edit | edit source]

Civil War[edit | edit source]

After independence in 1960,[2] the north supported the Nigeria People's Congress, the south supported the Action Group, and the west supported the Council for Nigeria and the Cameroons. A group of Igbo colonels led a coup in 1966 before being overthrown by Hausa officers. The southeastern region of Biafra declared independence in 1966, leading to a civil war that killed a million people. Nigeria quickly reconquered Biafra with French support.[10]

Economy[edit | edit source]

Nigeria's economy relies on oil, which is owned by foreign companies. It sells over two million barrels of oil every day, but is forced to import much of its oil from the imperial core. 80% of the Nigerian population lives on less than $2 per day.[1]

Demographics[edit | edit source]

Linguistic groups of Nigeria

Northern Nigeria is dominated by the Hausa, whereas the Yoruba live in the West and the Igbo in the South.[10]

References[edit | edit source]

  1. ↑ 1.0 1.1 "Boko Haram and the explosion of neocolonial rule in Nigeria" (2014-07-01). The Burning Spear. Archived from the original on 2020-11-08. Retrieved 2022-08-14.
  2. ↑ 2.0 2.1 2.2 Toyin Falola and Matthew M. Heaton (2008). A History of Nigeria. Cambridge University Press.
  3. ↑ Mark Cartwright (2019-03-27). "Nok Culture" World History Encyclopedia.
  4. ↑ 4.0 4.1 4.2 “The Nok Culture.” 2024. Nationalgeographic.Org. 2024. https://education.nationalgeographic.org/resource/nok-culture/.
  5. ↑ 5.0 5.1 5.2 5.3 5.4 Shaw, Thurstan. 1970. Igbo-Ukwu. https://ehrafarchaeology.yale.edu/traditions/fa75/documents/009.
  6. ↑ 6.0 6.1 6.2 6.3 6.4 Chukwudi, Ezenwa & Obiadi, Bons & Onuorah, Ikenna & Kikanme, Emmanuel & Uchechukwu, Paschal & Calistus, Okafor. (2023). Nri People and the Challenges of Preserving the Igbo Custom and Tradition: the case of Establishing an Igbo Traditional Centre. RESEARCH JOURNAL OF HUMANITIES AND CULTURAL STUDIES. 9. 23-29. 10.56201/rjhcs.v9.no1.2023.pg23.29.
  7. ↑ 7.0 7.1 7.2 7.3 7.4 “First Hausa State Established | Language and Linguistics | Research Starters | EBSCO Research.” 2022. Ebsco. 2022. https://www.ebsco.com/research-starters/language-and-linguistics/first-hausa-state-established.
  8. ↑ 8.0 8.1 8.2 8.3 8.4 8.5 Owaduge, S. (2024). From Ife to Oyo: The Origins of Yoruba Kingship and the Primacy of Ile-Ife. ResearchGate. Retrieved from https://www.researchgate.net/publication/394538401_From_Ife_to_Oyo_The_Origins_of_Yoruba_Kingship_and_the_Primacy_of_Ile-Ife
  9. ↑ 9.0 9.1 9.2 9.3 9.4 9.5 Edigin, C., & Edigin, C. (2025). The Obas of Benin (1200 to the present) : A Brief History of the Rulers of A West African State for Eight Centuries. BlackPast. Retrieved from https://blackpast.org/global-african-history/the-obas-of-benin-a-brief-history-of-the-rulers-of-a-west-african-state-for-eight-centuries
  10. ↑ 10.0 10.1 Vijay Prashad (2008). The Darker Nations: A People's History of the Third World: 'Notes' (p. 327). [PDF] The New Press. ISBN 9781595583420 [LG]