west Africa
{{Short description|Westernmost region of the African continent}}
{{About||the region of the African Union|Regions of the African Union#West|the album by Willis Jackson|West Africa (album)|the weekly news magazine|West Africa (magazine)}}
{{Use dmy dates|date=July 2024}}
{{Infobox
| image = 300px
| caption = {{align|left|{{legend|#00a000|Western Africa (UN subregion)}}}}
| bodyclass = geography
| above = West Africa
| label1 = Area
| data1 = {{convert|5112903|km2|abbr=on}} (7th)
| label2 = Population
| data2 = {{UN_Population|Western Africa}} ({{UN_Population|Year}} est.) (3rd){{UN_Population|ref}}
381,981,000 (female: 189,672,000; male: 192,309,000 (2017 est.United Nations Department of Economic and Social Affairs, Population Division (2017). World Population Prospects: The 2017 Revision, custom data acquired via website. [https://population.un.org/wpp/DataQuery/])
| label3 = Density
| data3 = 49.21/km2 (127.5/sq mi)
| label4 = Demonym
| data4 = West African
| label5 = Countries
| data5 = {{collapsible list
| title = {{nowrap|Sovereign states (16)}}
|bwn titlestyle = text-align:left;padding-right:4em;font-weight:normal;background-color:whitesmoke;
|{{BEN}} |{{BUR}} |{{CPV}} |{{GMB}} |{{GHA}} |{{GUI}} |{{GBS}} |{{CIV}} |{{LBR}} |{{MLI}} |{{MTN}} |{{NIG}} |{{NGA}} |{{SEN}} |{{SLE}} |{{TOG}} }}
| label6 = Dependencies
| data6 = {{flagcountry|SHN}}
| label7 = Time zones
| label8 = Major Regional Organizations
| data8 = Economic Community of West African States (ECOWAS; established 1975)
| data9 = {{US$|link=yes}}2.091 trillion (2022) (23rd){{cite web|url=http://www.imf.org/external/pubs/ft/weo/2014/01/weodata/weorept.aspx?pr.x=62&pr.y=13&sy=2012&ey=2019&scsm=1&ssd=1&sort=country&ds=.&br=1&c=668%2C638%2C748%2C678%2C624%2C692%2C694%2C722%2C662%2C724%2C648%2C652%2C742%2C656&s=PPPGDP&grp=0&a= |title=IMF GDP 2011 |access-date=17 October 2014}}
| label10 = GDP (PPP) per capita
| label11 = Total GDP (nominal)
| data11 = $810 billion (2023){{cite web |url=http://www.imf.org/external/pubs/ft/weo/2014/01/weodata/weorept.aspx?pr.x=95&pr.y=7&sy=2013&ey=2015&scsm=1&ssd=1&sort=country&ds=.&br=1&c=668%2C638%2C748%2C678%2C624%2C692%2C694%2C722%2C662%2C724%2C648%2C652%2C742%2C656&s=NGDPD&grp=0&a= |title=IMF GDP data, October 1515 |access-date=17 October 2014}}{{cite web |url=https://www.bloomberg.com/news/2014-04-06/nigerian-economy-overtakes-south-africa-s-on-rebased-gdp.html|title=Nigerian Economy Overtakes South Africa's on Rebased GDP|date=7 April 2014 |publisher=Bloomberg News |access-date=17 October 2014}}
| label12 = Total GDP (nominal) per capita
| label13 = Currency
| data13 = {{collapsible list
|titlestyle = background:transparent;text-align:left;font-weight:normal;
|title =
| {{flagicon|Ghana}} Cedi {{smaller|(GHS)}}
| {{flagicon|Gambia}} Dalasi {{smaller|(GMD)}}
| {{flagicon|Guinea}} Franc {{smaller|(GNF)}}
| {{flagicon|Liberia}} Dollar {{smaller|(LRD)}}
| {{flagicon|Mauritania}}
{{smaller|(MRU)}}
| {{flagicon|Nigeria}} Naira {{smaller|(NGN)}}
| {{flagicon|Saint Helena}} Pound {{smaller|(SHP)}}
| {{flagicon|Sierra Leone}} Leone {{smaller|(SLL)}}
| {{nowrap|W. African CFA franc {{smaller|(XOF)}}}}}}
| label14 = Largest cities
| data14 =
{{collapsible list|
- {{flagicon|NGA}} Lagos
- {{flagicon|CIV}} Abidjan
- {{flagicon|MLI}} Bamako
- {{flagicon|GHA}} Accra
- {{flagicon|NGA}} Kano
- {{flagicon|SEN}} Dakar
- {{flagicon|NGA}} Abuja
- {{flagicon|NGA}} Ibadan
- {{flagicon|BFA}} Ouagadougou
- {{flagicon|GHA}} Kumasi
}}
| label15 = UN M.49 code
| data15 = 011
– West Africa202
– Sub-Saharan Africa002
– Africa001
– World
}}
West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, and Togo, as well as Saint Helena, Ascension and Tristan da Cunha (United Kingdom Overseas Territory).{{cite web|url=http://millenniumindicators.un.org/unsd/methods/m49/m49regin.htm|title=United Nations Statistics Division – Standard Country and Area Codes Classifications|access-date=17 October 2014|archive-date=13 July 2011|archive-url=https://web.archive.org/web/20110713041240/http://millenniumindicators.un.org/unsd/methods/m49/m49regin.htm|url-status=dead}}Paul R. Masson, Catherine Anne Pattillo, "Monetary union in West Africa (ECOWAS): is it desirable and how could it be achieved?" (Introduction). International Monetary Fund, 2001. {{ISBN|1-58906-014-8}} The population of West Africa is estimated at around {{#expr:{{replace|{{UN_Population|Western Africa}}|,||}}/1e6 round 0}} million{{UN_Population|ref}} people as of {{UN_Population|Year}}, and at 381,981,000 as of 2017, of which 189,672,000 were female and 192,309,000 male.United Nations Department of Economic and Social Affairs, Population Division (2017). World Population Prospects: The 2017 Revision, custom data acquired via website. [https://population.un.org/wpp/DataQuery/] The region is demographically{{Cite web|title=West African population, 1950–2050 {{!}} West Africa Gateway {{!}} Portail de l'Afrique de l'Ouest|url=http://west-africa-brief.org/content/en/west-african-population-1950-2050|access-date=2021-10-30|website=west-africa-brief.org|archive-date=30 October 2021|archive-url=https://web.archive.org/web/20211030144214/http://west-africa-brief.org/content/en/west-african-population-1950-2050|url-status=dead}} and economically{{Cite web|title=UEMOA economies are projected to grow by 6.6% in 2020 {{!}} West Africa Gateway {{!}} Portail de l'Afrique de l'Ouest|url=http://www.west-africa-brief.org/content/en/uemoa-economies-are-projected-grow-66-2020|access-date=2021-10-30|website=west-africa-brief.org|archive-date=30 October 2021|archive-url=https://web.archive.org/web/20211030144214/http://www.west-africa-brief.org/content/en/uemoa-economies-are-projected-grow-66-2020|url-status=dead}} one of the fastest growing on the African continent.
Early history in West Africa includes a number of prominent regional powers that dominated different parts of both the coastal and internal trade networks, such as the Mali and Gao Empires. West Africa sat at the intersection of trade routes between Arab-dominated North Africa and further south on the continent, the source of specialized goods such as gold, advanced iron-working, and ivory. After European exploration encountered rich local economies and kingdoms, the Atlantic slave trade built on already existing slave systems to provide labor for colonies in the Americas. After the end of the slave trade in the early 19th century, European nations, especially France and Britain, continued to exploit the region through colonial relationships. For example, they continued exporting a number of extractive goods, including labor-intensive agricultural crops like cocoa and coffee, forestry products like tropical timber, and mineral resources like gold. Since independence, many West African countries, such as the Ivory Coast, Ghana, Nigeria and Senegal, have played important roles in the regional and global economies.
West Africa has a rich ecology, with strong biodiversity and several distinct regions. The area's climate and ecology are heavily influenced by the dry Sahara to the north and east, which provides dry winds during the Harmattan, as well as the Atlantic Ocean to the south and west, which provides seasonal monsoons. This mixture of climates gives West Africa a rich and diverse array of biomes, from biodiversity-rich tropical forests to drylands supporting rare and endangered fauna such as pangolins, rhinoceros, and elephants. Because of the pressure for economic development, many of these ecologies are threatened by processes like deforestation, biodiversity loss, overfishing, pollution from mining, plastics and other industries, and extreme changes resulting from climate change in West Africa.
History
{{Main|History of West Africa}}
{{Further|Sub-Saharan Africa#Western Africa|African empires#West Africa|List of kingdoms in pre-colonial Africa#West Africa}}
The history of West Africa can be divided into five major periods: first, its prehistory, in which the first human settlers arrived, developed agriculture, and made contact with peoples to the north; the second, the Iron Age empires that consolidated both intra-Africa, and extra-Africa trade, and developed centralized states; third, major polities flourished, which would undergo an extensive history of contact with non-Africans; fourth, the colonial period, in which Great Britain and France controlled nearly the entire region; and fifth, the post-independence era, in which the current nations were formed.
=Prehistory=
{{Main|Prehistoric West Africa#Early Stone Age 2}}
File:Two steatopyous figures said to represent Dahomey pygmies, Wellcome M0012407.jpg from the Dahomey region of Benin]]
West African populations were considerably mobile and interacted with one another throughout the population history of West Africa.{{cite book |last1=Haour |first1=Anne |title=Outsiders and Strangers: An Archaeology of Liminality in West Africa |date=25 July 2013 |publisher=Oxford University Press |isbn=978-0-19-969774-8 |page=38 |chapter-url=https://books.google.com/books?id=xYBpAgAAQBAJ&dq=%22population+history+of+west+africa%22&pg=PP1 |chapter=Wealth-in-people |doi=10.1093/acprof:osobl/9780199697748.001.0001 |oclc=855890703 |s2cid=127485241}} Acheulean tool-using archaic humans may have dwelled throughout West Africa since at least between 780,000 BP and 126,000 BP (Middle Pleistocene).{{cite book |doi=10.1093/acrefore/9780190277734.013.137 |chapter=The Stone Age Archaeology of West Africa |title=Oxford Research Encyclopedia of African History |date=2017 |last1=Scerri |first1=Eleanor |isbn=978-0-19-027773-4 }} During the Pleistocene, Middle Stone Age peoples (e.g., Iwo Eleru people,{{cite journal |last1=MacDonald |first1=Kevin C. |title=Korounkorokalé Revisited: The Pays Mande and the West African Microlithic Technocomplex |journal=The African Archaeological Review |date=1997 |volume=14 |issue=3 |pages=161–200 |doi=10.1007/BF02968406 |jstor=25130625 |s2cid=161691927 }} possibly Aterians), who dwelled throughout West Africa between MIS 4 and MIS 2,{{cite journal |last1=Niang |first1=Khady |last2=Blinkhorn |first2=James |last3=Ndiaye |first3=Matar |last4=Bateman |first4=Mark |last5=Seck |first5=Birame |last6=Sawaré |first6=Gora |title=The Middle Stone Age occupations of Tiémassas, coastal West Africa, between 62 and 25 thousand years ago |journal=Journal of Archaeological Science: Reports |date=December 2020 |volume=34 |pages=102658 |doi=10.1016/j.jasrep.2020.102658 |bibcode=2020JArSR..34j2658N |s2cid=228826414 }} were gradually replaced by incoming Late Stone Age peoples, who migrated into West Africa{{cite journal |last1=Schlebusch |first1=Carina M. |last2=Jakobsson |first2=Mattias |title=Tales of Human Migration, Admixture, and Selection in Africa |journal=Annual Review of Genomics and Human Genetics |date=31 August 2018 |volume=19 |issue=1 |pages=405–428 |doi=10.1146/annurev-genom-083117-021759 |pmid=29727585 }} as an increase in humid conditions resulted in the subsequent expansion of the West African forest.{{cite journal |last1=Scerri |first1=Eleanor M. L. |title=Continuity of the Middle Stone Age into the Holocene |journal=Scientific Reports |year=2021 |volume=11 |issue=1 |page=70 |doi=10.1038/s41598-020-79418-4 |pmid=33431997 |pmc=7801626 |oclc=8878081728 |s2cid=231583475}} West African hunter-gatherers occupied western Central Africa (e.g., Shum Laka) earlier than 32,000 BP, dwelled throughout coastal West Africa by 12,000 BP,{{cite book |last1=MacDonald |first1=Kevin C. |title=Archaeology and Language II: Archaeological Data and Linguistic Hypotheses |chapter=Archaeology, language and the peopling of West Africa: a consideration of the evidence |date=2 September 2003 |publisher=Routledge |pages=39–40, 43–44 |isbn=9780203202913 |doi=10.4324/9780203202913-11 |oclc=815644445 |s2cid=163304839 |chapter-url=https://books.google.com/books?id=48iKiprsRMwC&q=%22West+African+hunter-gatherers%22&pg=PA37}} and migrated northward between 12,000 BP and 8000 BP as far as Mali, Burkina Faso, and Mauritania.{{cite book |last1=Abd-El-Moniem |first1=Hamdi Abbas Ahmed |title=A New Recording of Mauritanian Rock Art |url=https://discovery.ucl.ac.uk/id/eprint/1444476/1/U591781.pdf |date=May 2005 |page=221 |publisher=University of London |oclc=500051500 |s2cid=130112115}}
File:Fondazione Passaré V31 474.jpg figure wearing a Barbary sheep-styled mask{{cite book |last1=Soukopova |first1=Jitka |title=Round Heads: The Earliest Rock Paintings in the Sahara |chapter=Round Head Paintings and Landscape |date=16 January 2013 |publisher=Cambridge Scholars Publishing |pages=45–55 |isbn=9781443845793 |oclc=826685273 |chapter-url=https://books.google.com/books?id=07wwBwAAQBAJ&q=Tuareg&pg=PR5}}]]
During the Holocene, Niger-Congo speakers independently created pottery in Ounjougou, Mali{{cite book |last1=Ness |first1=Immanuel |title=The Global Prehistory of Human Migration |chapter=Sub-Saharan Africa: Linguistics |date=10 November 2014 |publisher=Wiley Blackwell |page=100 |isbn=9781118970591 |oclc=890071926 |s2cid=160957067 |chapter-url=https://books.google.com/books?id=2HMTBwAAQBAJ&q=niger+congo+bce&pg=PA100}}{{cite book |last1=Ehret |first1=Christopher |title=Ancient Africa: A Global History, to 300 CE |date=2023 |publisher=Princeton University Press |isbn=9780691244105 |pages=14–17 |chapter-url=https://books.google.com/books?id=Q5KjEAAAQBAJ |chapter=African Firsts in the History of Technology |doi=10.2307/j.ctv34kc6ng.5 |jstor=j.ctv34kc6ng.5 |oclc=1330712064}}{{cite journal |last1=Jesse |first1=Friederike |title=Early Pottery in Northern Africa – An Overview |journal=Journal of African Archaeology |date=December 2010 |volume=8 |issue=2 |pages=219–238 |doi=10.3213/1612-1651-10171 |jstor=43135518 }} – the earliest pottery in Africa{{cite book |doi=10.1093/acrefore/9780190854584.013.66 |chapter=The First Emergence of Ceramic Production in Africa |title=Oxford Research Encyclopedia of Anthropology |date=2020 |last1=Huysecom |first1=Eric |isbn=978-0-19-085458-4 }} – by at least 9400 BCE, and along with their pottery, as well as wielding independently invented bows and arrows,{{cite web|last1=Blench |first1=Roger |title=Africa over the last 12000 years: how we can interpret the interface of archaeology and linguistics? |date=21 October 2017 |url=https://www.academia.edu/28768228 |pages=13, 25 |publisher=University of Cambridge}}{{cite book |last1=Roy |first1=Kaushik |title=A Global History of Pre-Modern Warfare: Before the Rise of the West, 10,000 BCE–1500 CE |date=15 September 2021 |page=Unnumbered |publisher=Routledge |isbn=9781000432121 |oclc=1261367188 |chapter-url=https://books.google.com/books?id=yE85EAAAQBAJ&q=Bows+arrows+West+Africa+independently+hunting |chapter=Military Convergence and the Bronze Age Civilisations of Eurasia}} migrated into the Central Sahara, which became their primary region of residence by 10,000 BP. The emergence and expansion of ceramics in the Sahara may be linked with the origin of Round Head and Kel Essuf rock art, which occupy rockshelters in the same regions (e.g., Djado, Acacus, Tadrart).{{cite journal |last1=Achrati |first1=Ahmed |title=What ever Happened to the People? Humans and Anthropomorphs in the Rock Art of Northern Africa: International Conference (Brussels, 17, 18 & 19 September 2015) |journal=Rock Art Research |date=May 2020 |volume=37 |issue=1 |pages=109–112 |id={{Gale|A623569190}} {{ProQuest|2403309251}} }} Hunters in the Central Sahara farmed, stored, and cooked undomesticated central Saharan flora,{{cite journal |last1=Mercuri |first1=Anna Maria |title=Plant behaviour from human imprints and the cultivation of wild cereals in Holocene Sahara |journal=Nature Plants |date=29 January 2018 |volume=4 |issue=2 |page=73 |doi=10.1038/s41477-017-0098-1 |pmid=29379157 |s2cid=3302383 |hdl=11380/1153032 |hdl-access=free }} underwent domestication of antelope,{{cite journal |last1=Aïn-Séba |first1=Nagète |title=Saharan rock art, a reflection of climate change in the Sahara |journal=Tabona |date=2022 |volume=22 |pages=303–317 |doi=10.25145/j.tabona.2022.22.15 }} and domesticated and shepherded Barbary sheep. After the Kel Essuf Period and Round Head Period of the Central Sahara, the Pastoral Period followed.{{cite journal |last1=Soukopova |first1=Jitka |title=Central Saharan rock art: Considering the kettles and cupules |journal=Journal of Arid Environments |date=August 2017 |volume=143 |pages=10–14 |doi=10.1016/J.JARIDENV.2016.12.011 |s2cid=132225521 |bibcode=2017JArEn.143...10S }} Some of the hunter-gatherers who created the Round Head rock art may have adopted pastoral culture, and others may have not.{{cite journal |last1=Soukopova |first1=Jitka |title=Tassili Paintings: Ancient roots of current African beliefs? |date=September 2015 |url=https://www.academia.edu/24483825 |journal=Expression |issn=2499-1341 |pages=116–120}} As a result of increasing aridification of the Green Sahara, Central Saharan hunter-gatherers and cattle herders may have used seasonal waterways as the migratory route taken to the Niger River and Chad Basin of West Africa.{{cite journal |last1=Soukopova |first1=Jitka |title=Rain and rock art in the Sahara: a possible interpretation |date=2020 |url=https://www.academia.edu/43418786 |journal=Expression |issn=2499-1341 |pages=79–90}} In 2000 BCE, "Thiaroye Woman",{{cite book |last1=LaGamma |first1=Alisa |title=Sahel: Art and Empires on the Shores of the Sahara |date=2020 |publisher=Metropolitan Museum of Art |isbn=978-1-58839-687-7 |pages=74–75}} also known as the "Venus of Thiaroye",{{cite journal |last1=Thiam |first1=Mandiomé |title=Milieu et culture matérielle dans le Néolithique sénégambien |journal=Antropo |date=2012 |volume=27 |pages=13–121 |url=http://www.didac.ehu.es/antropo/27/27-16/Thiam.pdf |oclc=884501689 |s2cid=160637192}} may have been the earliest statuette created in Sub-Saharan West Africa; it may have particularly been a fertility statuette, created in the region of Senegambia, and may be associated with the emergence of complexly organized pastoral societies in West Africa between 4000 BCE and 1000 BCE.{{cite book |last1=LaGamma |first1=Alisa |title=Sahel: Art and Empires on the Shores of the Sahara |date=2020 |publisher=Metropolitan Museum of Art |isbn=978-1588396877 |pages=74–75 |chapter-url=https://books.google.com/books?id=_cfLDwAAQBAJ&dq=%22Thiaroye%22+%22Venus%22&pg=PP2 |chapter=Pre-Islamic Artistic Patronage}} Though possibly developed as early as 5000 BCE, Nsibidi may have also developed in 2000 BCE,{{cite thesis |last1=Hales |first1=Kevin |title=The Moving Finger: A Rhetorical, Grammatological and Afrinographic Exploration of Nsibidi in Nigeria and Cameroon |date=2015 |url=http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1431071905 |page=15 }}{{cite book |last1=Akpan |first1=Unwana Samuel |title=African Media Space and Globalization |date=24 August 2023 |publisher=Palgrave Macmillan |isbn=978-3-031-35060-3 |page=32 |chapter-url=https://books.google.com/books?id=pPPSEAAAQBAJ&pg=PA3 |chapter=African Traditional Media: Looking Back, Looking Forward |doi=10.1007/978-3-031-35060-3_1 |oclc=1395910241}} as evidenced by depictions of the West African script on Ikom monoliths at Ikom, in Nigeria. Migration of Saharan peoples south of the Sahelian region resulted in seasonal interaction with and gradual absorption of West African hunter-gatherers, who primarily dwelt in the savannas and forests of West Africa. In West Africa, which may have been a major regional cradle in Africa for the domestication of crops and animals,{{cite journal |last1=Shen |first1=Quan-Kuan |display-authors=etal |title=Genomic analyses unveil helmeted guinea fowl (Numida meleagris) domestication in West Africa |journal=Genome Biology and Evolution |date=1 May 2021 |volume=13 |issue=evab090 |doi=10.1093/gbe/evab090 |pmid=34009300 |pmc=8214406 |oclc=9123485061 |s2cid=234783117 |doi-access=free}}{{cite journal |last1=Scarcelli |first1=Nora |title=Yam genomics supports West Africa as a major cradle of crop domestication |journal=Science Advances |volume=5 |issue=5 |page=eaaw1947 |year=2019 |doi=10.1126/sciadv.aaw1947 |bibcode=2019SciA....5.1947S |oclc=8291779404 |pmid=31114806 |pmc=6527260 |s2cid=155124324}} Niger-Congo speakers domesticated the helmeted guineafowl{{cite journal |last1=Murunga |first1=Philip |display-authors=etal |title=Mitochondrial DNA D-Loop Diversity of the Helmeted Guinea Fowls in Kenya and Its Implications on HSP70 Gene Functional Polymorphism |journal=BioMed Research International |year=2018 |volume=2018 |pages=1–12 |doi=10.1155/2018/7314038 |pmid=30539018 |pmc=6258102 |oclc=8754386965 |s2cid=54463512 |doi-access=free}} between 5500 BP and 1300 BP; domestication of field crops occurred throughout various locations in West Africa, such as yams (d. praehensilis) in the Niger River basin between eastern Ghana and western Nigeria (northern Benin), rice (oryza glaberrima) in the Inner Niger Delta region of Mali, pearl millet (cenchrus americanus) in northern Mali and Mauritania, and cowpeas in northern Ghana. After having persisted as late as 1000 BP, or some period of time after 1500 CE,{{cite book |last1=Van Beek |first1=Walter E.A. |last2=Banga |first2=Pieteke M. |title=Bush Base, Forest Farm: Culture, Environment, and Development |chapter=The Dogon and their trees |date=11 March 2002 |publisher=Routledge |page=66 |isbn=9781134919567 |doi=10.4324/9780203036129-10 |doi-broken-date=1 November 2024 |oclc=252799202 |s2cid=126989016 |chapter-url=https://books.google.com/books?id=ppuKAgAAQBAJ&q=%22Tellem%22+%22Dogon%22&pg=PA57}} remaining West African hunter-gatherers, many of whom dwelt in the forest-savanna region, were ultimately acculturated and admixed into the larger groups of West African agriculturalists, akin to the migratory Bantu-speaking agriculturalists and their encounters with Central African hunter-gatherers.
File:West African sites with archaeobotanical remains from third to first millennium cal bc.webp remains from third to first millennium cal bc. The arrows indicate directions of pearl millet diffusion into sub-Saharan West Africa.]]
=Empires=
{{Main|History of West Africa#Iron Age}}
{{Further|History of Africa#West Africa|History of Africa#West Africa 2|Blacksmiths of western Africa}}
{{See also|Jews of Bilad el-Sudan}}
File:Mansa Musa.jpg depicted holding a gold nugget from a 1395 map of Africa and Europe]]
The development of the region's economy allowed more centralized states and civilizations to form, beginning with Dhar Tichitt that began in 1600 B.C. followed by Djenné-Djenno beginning in 300 B.C. This was then succeeded by the Ghana Empire that first flourished roughly between the 2nd and 12th centuries C.E., which later gave way to the Mali Empire. In current-day Mauritania, there exist archaeological sites in the towns of Tichit and Oualata that were initially constructed around 2000 B.C., and were found to have originated from the Soninke branch of the Mandé peoples. Also, based on the archaeology of the city of Kumbi Saleh in modern-day Mauritania, the Mali empire came to dominate much of the region until its defeat by Almoravid invaders in 1052.
Three great kingdoms were identified in Bilad al-Sudan by the ninth century. They included Ghana, Gao and Kanem.{{cite book|author-link=Nehemia Levtzion|last1=Levtzion|first1=Nehemia|title=Ancient Ghana and Mali|date=1973|publisher=Methuen & Co Ltd|location=New York|isbn=978-0841904316|page=3}}
The Sosso Empire sought to fill the void but was defeated ({{Circa|1240}}) by the Mandinka forces of Sundiata Keita, founder of the new Mali Empire. The Mali Empire continued to flourish for several centuries, most particularly under Sundiata's grandnephew Musa I, before a succession of weak rulers led to its collapse under Mossi, Tuareg and Songhai invaders. In the 15th century, the Songhai would form a new dominant state based on Gao, in the Songhai Empire, under the leadership of Sonni Ali and Askia Mohammed.
Meanwhile, south of Sudan, strong city-states arose in Igboland, such as the 10th-century Kingdom of Nri, which helped birth the arts and customs of the Igbo people, Bono State in the 11th century, which gave birth to the numerous Akan States, while Ife rose to prominence around the 12th century. Further east, Oyo arose as the dominant Yoruba state and the Aro Confederacy as a dominant Igbo state in modern-day Nigeria.
The Kingdom of Nri was a West African medieval state in present-day southeastern Nigeria and a subgroup of the Igbo people. The Kingdom of Nri was unusual in the history of world government in that its leader exercised no military power over his subjects. The kingdom existed as a sphere of religious and political influence over a third of Igboland and was administered by a priest-king called an Eze Nri. The Eze Nri managed trade and diplomacy on behalf of the Nri people and possessed divine authority in religious matters.
The Oyo Empire was a Yoruba empire of what is today Western, North Central Nigeria and Southern Republic of Benin. Established in the 14th century, the Oyo Empire grew to become one of the largest West African states. It rose through the outstanding organizational skills of the Yoruba, wealth gained from trade and its powerful cavalry. The Oyo Empire was the most politically important state in the region from the mid-17th to the late 18th century, holding sway not only over most of the other kingdoms in Yorubaland, but also over nearby African states, notably the Fon Kingdom of Dahomey in the modern Republic of Benin to the west.
The Benin Empire was a post-classical empire located in what is now southern Nigeria. Its capital was Edo, now known as Benin City, Edo. It should not be confused with the modern-day country called Benin, formerly called Dahomey. The Benin Empire was "one of the oldest and most highly developed states in the coastal hinterland of West Africa, dating perhaps to the eleventh century CE". The Benin Empire was governed by a sovereign Emperor with hundreds of thousands of soldiers and a powerful council rich in resources, wealth, ancient science and technology with cities described as beautiful and large as Haarlem. "Olfert Dapper, a Dutch writer, describing Benin in his book Description of Africa (1668) ". Its craft was the most adored and treasured bronze casting in the history of Africa. It was annexed by the British Empire in 1897 during the invasion and scramble of Africa.
=European contact and enslavement=
{{Main|Atlantic slave trade}}
File:Africa de l'Oèst en 1875-es.svg
Portuguese traders began establishing settlements along the coast in 1445, followed by the French, English, Spanish, Danish and Dutch; the African slave trade began not long after, which over the following centuries would debilitate the region's economy and population.{{cite web |url= http://www.britannica.com/blackhistory/article-24156 |title=Historical survey: Slave-owning societies |website=Encyclopædia Britannica |archive-url=https://web.archive.org/web/20070223090720/http://www.britannica.com/blackhistory/article-24156 |archive-date=23 February 2007}} The slave trade also encouraged the formation of states such as the Bono State, Bambara Empire and Dahomey, whose economic activities include but not limited to exchanging slaves for European firearms.{{Cite book|last1=Peterson|first1=Derek R.|url=https://books.google.com/books?id=Om12BgAAQBAJ|title=The Politics of Heritage in Africa|last2=Gavua|first2=Kodzo|last3=Rassool|first3=Ciraj|date=2015-03-02|publisher=Cambridge University Press|isbn=978-1-107-09485-7}}
=Colonialism=
{{Further|Colonisation of Africa}}
File:French West Africa 1913 map.png
In the early 19th century, a series of Fulani reformist jihads swept across Western Africa. The most notable include Usman dan Fodio's Fulani Empire, which replaced the Hausa city-states, Seku Amadu's Massina Empire, which defeated the Bambara, and El Hadj Umar Tall's Toucouleur Empire, which briefly conquered much of modern-day Mali.
However, the French and British continued to advance in the Scramble for Africa, subjugating kingdom after kingdom. With the fall of Samory Ture's established Wassoulou Empire in 1898 and the Ashanti queen Yaa Asantewaa in 1902, most West African military resistance to colonial rule resulted in failure.
Part of the West African regions underwent an increase in the numeracy level throughout the 19th century. The reason for such a growth was predetermined by a number of factors. Namely, the peanut production and trade, which was boosted by the demand of the colonial states. Importantly, the rise of numeracy was higher in the regions which were less hierarchical and had less dependence on the slavery trade (e.g. Sine and Salum). Whereas areas with the opposite trends illustrated opposite tendencies (e.g. central and northern Senegal). Those patterns were further even more stimulated by the French colonial campaign.{{cite journal |last1=Baten |first1=Jörg |title=European Trade, Colonialism and Human Capital Accumulation in Senegal, Gambia and Western Mali, 1770 – 1900 |journal=CESifo Working Papers |date=May 2017}}
Britain controlled the Gambia, Sierra Leone, Ghana, and Nigeria throughout the colonial era, while France unified Senegal, Guinea, Mali, Burkina Faso, Benin, Ivory Coast, and Niger into French West Africa. Portugal founded the colony of Guinea-Bissau, while Germany claimed Togoland, but was forced to divide it between France and Britain following First World War due to the Treaty of Versailles. Only Liberia retained its independence, at the price of major territorial concessions.
=Postcolonial era=
{{Further|Decolonisation of Africa|Postcolonial Africa#West Africa|Neocolonialism}}
{{See also|Neocolonialism#Françafrique|West African CFA franc|Status of forces agreement|Foreign Aid to Francophone West Africa}}
Following World War II, nationalist movements arose across West Africa. In 1957, Ghana, under Kwame Nkrumah, became the first West African colony to achieve its independence, followed the next year by France's colonies (Guinea in 1958 under the leadership of President Ahmed Sekou Touré); by 1974, West Africa's nations were entirely autonomous.
Since independence, many West African nations have been submerged under political instability, with notable civil wars in Nigeria, Sierra Leone, Liberia, and Ivory Coast, and a succession of military coups in Ghana and Burkina Faso.
Since the end of colonialism, the region has been the stage for some brutal conflicts, including:
Geopolitical division
File:Map of West AFrica.gif States of West Africa;
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Geopolitically, the United Nations definition of subregion Western Africa includes the preceding states with the addition of Mauritania (which withdrew from ECOWAS in 1999), comprising an area of approximately 6.1 million square km.{{Cite web|url=https://www.un.org/unowa/unowa/bckgrdnew.pdf|url-status=dead|archive-url=https://web.archive.org/web/20060516091903/https://www.un.org/unowa/unowa/bckgrdnew.pdf|archive-date=2006-05-16|title=The UN office for West Africa}} The UN region also includes the United Kingdom Overseas Territory of Saint Helena, Ascension and Tristan da Cunha in the south Atlantic Ocean.
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