AfricaAfrica is the world's second-largest and second-most populous continent, after Asia in both aspects. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surface area. With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4.
SahelThe Sahel (səˈhɛl; ساحل ˈsaːħil, "coast, shore") is a region in Africa. It is defined as the ecoclimatic and biogeographic realm of transition between the Sahara to the north and the Sudanian savanna to the south. Having a hot semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea.
Mali EmpireThe Mali Empire (Manding: Mandé or Manden; Mālī) was an empire in West Africa from 1226 to 1670. The empire was founded by Sundiata Keita (1214-1255) and became renowned for the wealth of its rulers, especially Mansa Musa (Musa Keita). At its peak, Mali was the largest empire in West Africa, widely influencing the culture of the region through the spread of its language, laws and customs. The empire began as a small Mandinka kingdom at the upper reaches of the Niger River, centered around the Manding region.
Köppen climate classificationThe Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, German climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification.
Ivory CoastIvory Coast, also known as Côte d'Ivoire, officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital is Yamoussoukro, in the centre of the country, while its largest city and economic centre is the port city of Abidjan. It borders Guinea to the northwest, Liberia to the west, Mali to the northwest, Burkina Faso to the northeast, Ghana to the east, and the Gulf of Guinea (Atlantic Ocean) to the south.
SaharaThe Sahara (səˈhɑːrə, səˈhærə) is a desert on the African continent. With an area of , it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic. The name "Sahara" is derived from the Arabic word for "desert" in the feminine irregular form, the singular (صحراء //ˈSaHra), plural (صَحَارَى //ˈSaHaaraa), (صَحَار), (صَحْرَاوَات), (صَحَارِي).
TimbuktuTimbuktu (ˌtɪmbʌkˈtuː ; Tombouctou; Koyra Chiini: Tumbutu; Tin Buqt) is a city in Mali, situated north of the Niger River. The town is the capital of the Tombouctou Region, one of the eight administrative regions of Mali and one town of Songhai people, having a population of 54,453 in the 2009 census. Timbuktu began as a seasonal settlement and became a permanent settlement early in the 12th century. After a shift in trading routes, particularly after the visit by Mansa Musa around 1325, Timbuktu flourished from the trade in salt, gold, ivory and slaves.
GaoGao gaʊ, or Gawgaw/Kawkaw, is a city in Mali and the capital of the Gao Region. The city is located on the River Niger, east-southeast of Timbuktu on the left bank at the junction with the Tilemsi valley. For much of its history Gao was an important commercial centre involved in the trans-Saharan trade. In the 9th century external Arabic writers described Gao as an important regional power, and by the end of the 10th century, the local ruler was said to be a Muslim.
DjennéDjenné (Jɛ̀nɛ́; also known as Djénné, Jenné and Jenne) is a Songhai people town and an urban commune in the Inland Niger Delta region of central Mali. The town is the administrative centre of the Djenné Cercle, one of the eight subdivisions of the Mopti Region. The commune includes ten of the surrounding villages and in 2009 had a population of 32,944. The history of Djenné is closely linked with that of Timbuktu. Between the 15th and 17th centuries much of the trans-Saharan trade in goods such as salt, gold, and slaves that moved in and out of Timbuktu passed through Djenné.
Niger RiverThe Niger River (ˈnaɪdʒər ; (le) fleuve Niger (lə) flœv niʒɛʁ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Mali, Niger, on the border with Benin and then through Nigeria, discharging through a massive delta, known as the Niger Delta (or the Oil Rivers), into the Gulf of Guinea in the Atlantic Ocean.
