West Africa in the context of "History of Islam"

The following is a list of the 100 largest cities in Africa by urban population using the most recent official estimate. This reflects only cities located geographically in Africa including related islands.

A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize (corn). Edible grains from other plant families, such as amaranth, buckwheat and quinoa, are pseudocereals. Most cereals are annuals, producing one crop from each planting, though rice is sometimes grown as a perennial. Winter varieties are hardy enough to be planted in the autumn, becoming dormant in the winter, and harvested in spring or early summer; spring varieties are planted in spring and harvested in late summer. The term cereal is derived from the name of the Roman goddess of grain crops and fertility, Ceres.

Cereals were domesticated in the Neolithic around 8,000 years ago. Wheat and barley were domesticated in the Fertile Crescent. Rice and some millets were domesticated in East Asia, while sorghum and other millets were domesticated in West Africa. Maize was domesticated by Indigenous peoples of the Americas in southern Mexico about 9,000 years ago. In the 20th century, cereal productivity was greatly increased by the Green Revolution. This increase in production has accompanied a growing international trade, with some countries producing large portions of the cereal supply for other countries.

The Atlantic slave trade or transatlantic slave trade involved the transportation by slave traders of enslaved African people to the Americas. European slave ships regularly used the triangular trade route and its Middle Passage. Europeans established a coastal slave trade in the 15th century, and trade to the Americas began in the 16th century, lasting through the 19th century. The vast majority of those who were transported in the transatlantic slave trade were from Central Africa and West Africa and had been sold by West African slave traders to European slave traders, while others had been captured directly by the slave traders in coastal raids. European slave traders gathered and imprisoned the enslaved at forts on the African coast and then brought them to the Western hemisphere. Some Portuguese and Europeans participated in slave raids. As the National Museums Liverpool explains: "European traders captured some Africans in raids along the coast, but bought most of them from local African or African-European dealers." European slave traders generally did not participate in slave raids. This was primarily because life expectancy for Europeans in sub-Saharan Africa was less than one year during the period of the slave trade due to malaria that was endemic to the African continent. Portuguese coastal raiders found that slave raiding was too costly and often ineffective and opted for established commercial relations.

The colonial South Atlantic and Caribbean economies were particularly dependent on slave labour for the production of sugarcane and other commodities. This was viewed as crucial by those Western European states which were vying with one another to create overseas empires. The Portuguese, in the 16th century, were the first to transport slaves across the Atlantic. In 1526, they completed the first transatlantic slave voyage to Brazil. Other Europeans soon followed. Shipowners regarded the slaves as cargo to be transported to the Americas as quickly and cheaply as possible, there to be sold to work on coffee, tobacco, cocoa, sugar, and cotton plantations, gold and silver mines, rice fields, the construction industry, cutting timber for ships, as skilled labour, and as domestic servants. The first enslaved Africans sent to the English colonies were classified as indentured servants, with legal standing similar to that of contract-based workers coming from Britain and Ireland. By the middle of the 17th century, slavery had hardened as a racial caste, with African slaves and their future offspring being legally the property of their owners, as children born to slave mothers were also slaves (partus sequitur ventrem). As property, the people were considered merchandise or units of labour, and were sold at markets with other goods and services.

Sub-Saharan Africa is the area and regions of the continent of Africa that lie south of the Sahara. These include Central Africa, East Africa, Southern Africa, and West Africa. Geopolitically, in addition to the African countries and territories that are situated fully in that specified region, the term may also include polities that only have part of their territory located in that region, per the definition of the United Nations (UN). This is considered a non-standardised geographical region with the number of countries included varying from 46 to 48 depending on the organisation describing the region (e.g. UN, WHO, World Bank, etc.). The African Union (AU) uses a different regional breakdown, recognising all 55 member states on the continent—grouping them into five distinct and standard regions.

The term serves as a grouping counterpart to North Africa, which is instead grouped with the definition of MENA (i.e. Middle East and North Africa) as it is part of the Arab world, and most North African states are likewise members of the Arab League. However, while they are also member states of the Arab League, the Comoros, Djibouti, Mauritania, and Somalia (and sometimes Sudan) are all geographically considered to be part of sub-Saharan Africa. Overall, the UN Development Programme applies the "sub-Saharan" classification to 46 of Africa's 55 countries, excluding Djibouti, SADR, Somalia, and Sudan. The concept has been criticised by scholars on both sides of the Sahara as a racialist construction.

The Islamization of the Sudan region (Sahel) encompasses a prolonged period of religious conversion, through military conquest and trade relations, spanning the 8th to 16th centuries.

Following the 7th century Muslim conquest of Egypt and the 8th-century Muslim conquest of North Africa, Arab Muslims began leading trade expeditions into Sub-Saharan Africa, first towards Nubia, and later across the Sahara into West Africa. Much of this contact was motivated by an interest in trans-Saharan trade, particularly the slave trade.

The Afroasiatic languages (also known as Afro-Asiatic, Afrasian, Hamito-Semitic, or Semito-Hamitic) are a language family (or "phylum") of about 400 languages spoken predominantly in West Asia, North Africa, the Horn of Africa, and parts of the Sahara and Sahel. Over 500 million people are native speakers of an Afroasiatic language, constituting the fourth-largest language family after Indo-European, Sino-Tibetan, and Niger–Congo. Most linguists divide the family into six branches: Berber (Amazigh), Chadic, Cushitic, Egyptian, Omotic, and Semitic. The vast majority of Afroasiatic languages are considered indigenous to the African continent, including all those not belonging to the Semitic branch (which originated in West Asia).

The five most spoken languages in the family are: Arabic (of all varieties), which is by far the most widely spoken within the family, with around 411 million native speakers concentrated primarily in West Asia and North Africa; the Chadic Hausa language, with over 58 million speakers in West Africa; the Cushitic Oromo language, with 45 million native speakers; the Semitic Amharic language, with 35 million; and the Cushitic Somali language with 24 million, all the latter three in the Horn of Africa. Other Afroasiatic languages with millions of native speakers include the Semitic Tigrinya, Tigre and Modern Hebrew, the Cushitic Beja, Sidama and Afar languages, the Berber languages (Shilha, Kabyle, Central Atlas Tamazight, Shawiya and Tarifit), and the Omotic Wolaitta language. Most languages of the non-Semitic branches (especially Chadic and Omotic) have far fewer speakers, and many Afroasiatic languages in Africa are vulnerable or endangered.

The Maliki school or Malikism is one of the four major schools of Islamic jurisprudence within Sunni Islam. It was founded by Malik ibn Anas (c. 711–795 CE) in the 8th century. In contrast to the Ahl al-Hadith and Ahl al-Ra'y schools of thought, the Maliki school takes a unique position known as Ahl al-Amal, in which they consider the Sunnah to be primarily sourced from the practice of the people of Medina and living Islamic traditions for their rulings on Islamic law.

The Maliki school is one of the largest groups of Sunni Muslims, comparable to the Shafi’i madhhab in adherents, but smaller than the Hanafi madhhab. Sharia based on Maliki Fiqh is predominantly found in North Africa (excluding parts of Egypt), West Africa, Chad, Sudan and the Persian Gulf.

The number of languages natively spoken in Africa is variously estimated (depending on the delineation of language vs. dialect) at between 1,250 and 2,100, and by some counts at over 3,000. Nigeria alone has over 500 languages (according to SIL Ethnologue), one of the greatest concentrations of linguistic diversity in the world. The languages of Africa belong to many distinct language families, among which the largest are:

• Niger–Congo, which include the large Atlantic-Congo and Bantu branches in West, Central, Southeast and Southern Africa.
• Afroasiatic languages are spread throughout Western Asia, North Africa, the Horn of Africa and parts of the Sahel.
• Saharan, Nilotic and Central Sudanic languages (grouped under the hypothetical Nilo-Saharan macro-family), are present in East Africa and Sahel.
• Austronesian languages are spoken in Madagascar and parts of the Comoros.
• Khoe–Kwadi languages are spoken mostly in Namibia and Botswana.
• Indo-European languages, while not indigenous to Africa, are spoken in South Africa and Namibia (Afrikaans, English, German) and are used as lingua francas in Liberia and the former colonies of the United Kingdom (English), former colonies of France and of Belgium (French), former colonies of Portugal (Portuguese), former colonies of Italy (Italian), former colonies of Spain (Spanish) and the current Spanish territories of Ceuta, Melilla and the Canary Islands and the current French territories of Mayotte and La Réunion.

There are several other small families and language isolates, as well as creoles and languages that have yet to be classified. In addition, Africa has a wide variety of sign languages, many of which are language isolates.

Niger, officially the Republic of the Niger, is a landlocked country in West Africa. It is a unitary state bordered by Libya to the northeast, Chad to the east, Nigeria to the south, Benin and Burkina Faso to the southwest, Mali to the west, and Algeria to the northwest. It covers a land area of almost 1.27 million km (490,000 sq mi), making it the largest landlocked country in West Africa and the second-largest landlocked nation in Africa behind Chad. Over 80% of its land area lies in the Sahara. Its predominantly Muslim population of about 25 million lives mostly in clusters in the south and west of the country. The capital, Niamey, is located in Niger's southwest corner along the namesake Niger River.

Following the spread of Islam to the region, Niger was on the fringes of some states, including the Kanem–Bornu Empire and the Mali Empire before more significant parts of its territory became included in states such as the Sultanate of Agadez and the Songhai Empire. It was colonized by France during the Scramble for Africa as part of French West Africa, becoming a distinct colony in 1922. Since obtaining independence in 1960, Niger has experienced five coups d'état and four periods of military rule. Niger's seventh and most recent constitution was enacted in 2010, establishing a multiparty, unitary semi-presidential system. Following the most recent coup in 2023, the country has been ruled by National Council for the Safeguard of the Homeland, a military junta.