East Africa

Definitions

In a narrow sense, particularly in English speaking contexts, East Africa refers to the area comprising Kenya, Tanzania, and Uganda, largely due to their shared history of British administration and later cooperation through East African regional institutions. Further extending East Africa's definition, the Horn of Africa—comprising Djibouti, Eritrea, Ethiopia, and Somalia—stands out as a distinct geopolitical entity within East Africa.

The East African Community, an economic and political bloc, currently includes the Democratic Republic of the Congo, Somalia, Burundi, Kenya, Rwanda, South Sudan, Uganda and Tanzania. Notably, the African Great Lakes region overlaps significantly with these countries. Adjacent to these mainland territories are island nations and territories such as the Comoros, Mauritius, Seychelles, Réunion, Mayotte, and the Scattered Islands in the Indian Ocean.

Regions including portions of Mozambique and Madagascar, often aligned with Southern Africa, share significant historical and cultural connections with East Africa, particularly through the Indian Ocean's maritime networks. Sudan is also sometimes included due in part because it is a part of the eastern region in African Union (AU) and a member of the Common Market for Eastern and Southern Africa (COMESA) free trade area.

History

Prehistory

According to both genetic and fossil evidence, it has been posited that archaic Homo sapiens evolved into anatomically modern humans in the Horn of Africa around 200,000 years ago and dispersed from there. The recognition of Homo sapiens idaltu and Omo Kibish as anatomically modern humans would justify the description of contemporary humans with the subspecies name Homo sapiens sapiens. Because of their early dating and unique physical characteristics idaltu and kibish represent the immediate ancestors of anatomically modern humans as suggested by the Out-of-Africa theory.

In 2017 finds of modern human remains, dating to ca 300,000 years ago in Jebel Irhoud in Morocco, suggested that modern humans arose earlier and possibly in a larger area of Africa than previously thought.

East Africa is one of the earliest regions where Homo sapiens are believed to have lived. Evidence was found in 2018, dating to about 320,000 years ago, at the Kenyan site of Olorgesailie, of the early emergence of modern behaviors associated with Homo sapiens, including: long-distance trade networks (involving goods such as obsidian), the use of pigments, and the possible making of projectile points. It is observed by the authors of three 2018 studies on the site, that the evidence of these behaviors is approximately contemporary to the earliest known Homo sapiens fossil remains from Africa (such as at Jebel Irhoud and Florisbad), and they suggest that complex and modern behaviors had already begun in Africa around the time of the emergence of Homo sapiens.

In September 2019, scientists reported the computerized determination, based on 260 CT scans, of a virtual skull shape of the last common human ancestor to modern humans/H. sapiens, representative of the earliest Homo sapiens, and suggested that Homo sapiens arose between 350,000 and 260,000 years ago through a merging of populations in South and East Africa.

The migration route of the "Out of Africa" theory probably occurred in East Africa through the Bab-el-Mandeb. Today at the Bab-el-Mandeb straits, the Red Sea is about 12 miles (19 kilometres) wide, but 50,000 years ago it was much narrower and sea levels were 70 meters lower. Though the straits were never completely closed, there may have been islands in between which could be reached using simple rafts.

Ancient history

Djibouti, Eritrea, Ethiopia, Somalia, and the Red Sea coast of Sudan are considered the most likely location of the land known to the Ancient Egyptians as Punt. The old kingdom's first mention dates to the 25th century BCE. The ancient Puntites were a nation of people that had close relations with Pharaonic Egypt during the times of Pharaoh Sahure and Queen Hatshepsut.

The Kingdom of Aksum was a trading empire centered Eritrea and northern Ethiopia. It existed from approximately 100–940 CE, growing from the proto-Aksumite Iron Age period c. 4th century BCE to achieve prominence by the 1st century CE. The kingdom is mentioned in the Periplus of the Erythraean Sea as an important marketplace for ivory, which was exported throughout the ancient world. Aksum was at the time ruled by Zoskales, who also governed the port of Adulis. The Aksumite rulers facilitated trade by minting their own Aksumite currency. The state also established its hegemony over the declining Kingdom of Kush.

Between 2500 and 3000 years ago, Bantu-speaking peoples began a millennia-long series of migrations eastward from their homeland around southern Cameroon. This Bantu expansion introduced agriculture into much of the African Great Lakes region. During the following fifteen centuries, the Bantu slowly intensified farming and grazing over all suitable regions of East Africa, in the process making contact with Austronesian- and Arabic-speaking settlers on southern coastal areas. The latter also spread Islam to the coastal belt, but most Bantu remained African Traditional Religion adherents.

Over a period of many centuries, most hunting-foraging peoples were displaced and absorbed by incoming Bantu communities, as well as by later Nilotic communities. The Bantu expansion was a long series of physical migrations, a diffusion of language and knowledge out into and in from neighboring populations, and a creation of new societal groups involving inter-marriage among communities and small groups moving to communities and small groups moving to new areas.

After their movements from their original homeland in West Africa, Bantus also encountered in central east Africa peoples of Cushitic origin. As cattle terminology in use amongst the few modern Bantu pastoralist groups suggests, the Bantu migrants would acquire cattle from their new Cushitic neighbors. Linguistic evidence also indicates that Bantus most likely borrowed the custom of milking cattle directly from Cushitic peoples in the area.

Modern history

The Portuguese were the first Europeans to explore the region of current-day Kenya, Tanzania, and Mozambique by sea. Vasco da Gama visited Mombasa in 1498. Da Gama's voyage was successful in reaching India, which permitted the Portuguese to trade with the Far East directly by sea. This in turn challenged the older trading networks of mixed land and sea routes, such as the spice trade routes which utilized the Persian Gulf, Red Sea, and camel caravans to reach the eastern Mediterranean.

The Republic of Venice had gained control over much of the trade routes between Europe and Asia. After traditional land routes to India had been closed by the Ottoman Turks, Portugal hoped to use the sea route pioneered by da Gama to break the once Venetian trading monopoly. Portuguese rule in the African Great Lakes region focused mainly on a coastal strip centered around Mombasa. The Portuguese presence in the area officially began after 1505, when flagships under the command of Don Francisco de Almeida conquered Kilwa, an island located in what is now southern Tanzania.

In March 1505, having received from Manuel I of Portugal the appointment of viceroy of the newly conquered territory in India, he set sail from Lisbon in command of a large and powerful fleet, and arrived in July at Quiloa (Kilwa), which yielded to him almost without a struggle. A much more vigorous resistance was offered by the Moors of Mombasa. However, the town was taken and destroyed, and its large treasures went to strengthen the resources of Almeida. Attacks followed on Hoja (now known as Ungwana, located at the mouth of the Tana River), Barawa, Angoche, Pate and other coastal towns until the western Indian Ocean was a safe haven for Portuguese commercial interests. At other places on his way, such as the island of Angediva, near Goa, and Cannanore, the Portuguese built forts, and adopted measures to secure the Portuguese supremacy.

Portugal's main goal on the Swahili coast was to take control of the spice trade from the Arabs. At this stage, the Portuguese presence in East Africa served the purposes of controlling trade within the Indian Ocean and securing the sea routes linking Europe to Asia. Portuguese naval vessels were very disruptive to the commerce of Portugal's enemies within the western Indian Ocean and were able to demand high tariffs on items transported through the sea due to their strategic control of ports and shipping lanes. The construction of Fort Jesus in Mombasa in 1593 was meant to solidify Portuguese hegemony in the region, but their influence was clipped by the British, Dutch and Omani Arab incursions into the Great Lakes region during the 17th century.

Geography

Some parts of East Africa have been renowned for their concentrations of wild animals, such as the "big five": the elephant, buffalo, lion, black rhinoceros, and leopard, though populations have been declining under increased stress in recent times, particularly those of the rhino and elephant.

The geography of East Africa is often stunning and scenic. Shaped by global plate tectonic forces that have created the East African Rift, East Africa is the site of Mount Kilimanjaro and Mount Kenya, the two tallest peaks in Africa. It also includes the world's second largest freshwater lake, Lake Victoria, and the world's second-deepest lake, Lake Tanganyika.

The unique geography and apparent suitability for farming made East Africa a target for European exploration, exploitation and colonialization in the nineteenth century. Today, tourism is an important part of the economies of Kenya, Tanzania, Seychelles, and Uganda. The easternmost point of the continent, that is Ras Hafun in Somalia, is of archaeological, historical and economical importance.

Countries, capitals and largest cities

According to the CIA, as of 2017, the countries in the eastern Africa region have a total population of around 537.9 million inhabitants.

Climate

East Africa has a diverse climate that consists of hot, dry desert regions, cooler regions, and highlands. Its climate generally is rather atypical of equatorial regions, being mostly arid or semi-arid with rainfall totals across much of the lowland regions below 600 millimetres or 24 inches per year. In fact, on the northern coast of Somalia, annual rainfall is less than 100 millimetres or 4 inches and many years can go by without any rain whatsoever. The causes of the low rainfall totals are not fully understood. One factor is presence of the Somali Jet (a fast wind system) in boreal summer, which brings cool southern hemisphere air into East Africa. A second cause is the presence of east to west river valleys in the East African Rift, which channel strong moisture-laden winds from the Indian Ocean away from East Africa and towards the Congo Basin rainforest.

Rainfall generally increases towards the south and with altitude, being around 400 mm (16 in) at Mogadishu and 1,200 mm (47 in) at Mombasa on the coast, whilst inland it increases from around 130 mm (5 in) at Garoowe to over 1,100 mm (43 in) at Moshi near Kilimanjaro. Rainfall in most of East Africa east of the Rwenzoris and Ethiopian Highlands is characterised by two main rainfall seasons, the long rains from March to May and the short rains from October to December. This is usually attributed to the passage of the Intertropical Convergence Zone across the region in those months, but it may also be analogous to the autumn monsoon rains of parts of Sri Lanka, Vietnam, and the Brazilian Nordeste. West of the mountains, the rainfall pattern is more typically tropical, with rain throughout the year near the equator and a single wet season in most of the Ethiopian Highlands from June to September — contracting to July and August around Asmara. Annual rainfall here ranges from over 1,600 mm (63 in) on the western slopes to around 1,250 mm (49 in) at Addis Ababa and 550 mm (22 in) at Asmara. In the high mountains rainfall can be over 2,500 millimetres or 100 inches.

Rainfall variability is influenced by both El Niño events and a positive Indian Ocean Dipole. El Niño events tend to increase rainfall except in the northern and western parts of the Ethiopian and Eritrean highlands, where they produce drought and poor Nile floods. Similarly, a positive Indian Ocean Dipole result in warm sea-surface temperatures off the coast of East Africa and lead to increased rainfall over East Africa. Temperatures in East Africa, except on the hot and generally humid coastal belt, are moderate, with maxima of around 25 °C (77 °F) and minima of 15 °C (59 °F) at an altitude of 1,500 metres (4,921 ft). At altitudes of above 2,500 metres (8,200 ft), frosts are common during the dry season and maxima typically about 21 °C (70 °F) or less.

Demographics

Eastern Africa had an estimated population of 260 million in 2000. This was projected to reach 890 million by 2050, with an average growth rate of 2.5% per annum. The 2000 population is expected to quintuple over the course of the 21st century, to 1.6 billion as of 2100 (UN estimates as of 2017). In Ethiopia, there is an estimated population of 102 million as of 2016.

Languages

In the Horn of Africa and Nile Valley, Afroasiatic languages predominate, including languages of the family's Cushitic (such as Beja, Oromo and Somali), Semitic (such as Amharic, Arabic and Tigrinya), and Omotic (such as Wolaytta) branches.

In the African Great Lakes region, Niger-Congo languages of the Bantu branch are most widely spoken. Among these languages are Kikuyu, Luhya, Kinyarwanda, Kirundi, Kisukuma, Luganda and many others. Swahili, with at least 80 million speakers as a first or second language, is an important trade language in the Great Lakes area. It has official status in Tanzania, Kenya and Uganda.

Nilotic languages, such as Luo, Kalenjin, Maasai and Nuer, are spoken in lesser numbers, primarily in the African Great Lakes and Nile Valley.

Indo-European languages, such as English, French, Portuguese and Italian, remain important in higher institutions in some parts of the larger region.

Religion

Christianity and Islam are the predominant religions of the region, with traditional African religions and religious syncretism being practiced too. Christianity is the majority religion of the countries in East Africa, with the exception of Comoros, Djibouti and Somalia, where Islam predominates, and Mauritius, where almost half of the population adheres to Hinduism. In Eritrea, the two major religions are Christianity and Islam, although the number of adherents of each faith is uncertain. Among the countries where Christianity is the largest religion, there are sizeable Muslim communities in Ethiopia, and on the Swahili coast in Kenya, Tanzania and Mozambique. In 2020, the Association of Religion Data Archives found that the majority of Eastern Africa was Christian and mostly Protestant.

Geology

Tectonic activity

The largest tectonic movement in East Africa is the East African Rift, both the Somali Plate and Nubian Plate are separating at 7mm per annum

Popular depictions

There are movies that have depicted East Africa in various forms. 7 Days in Entebbe, The Last King of Scotland, Out of Africa, Queen of Katwe, The Constant Gardener, Hotel Rwanda, The Good Lie, and Captain Phillips are a few of the critically acclaimed movies. In the video games Halo 2 and Halo 3, East Africa is one of the central locations for the campaigns.

Economy

Agriculture plays a major role in the economy of East Africa, employing the majority of the population and contributing significantly to the GDP. Tourism is especially developed in Tanzania and Kenya, due to safari parks. Nairobi and Addis Ababa are the main financial hubs in East Africa.

While East Africa is the fastest growing region in Africa, several countries in the region are struggling economically, with their situation worsened by political instability, such as the economy of South Sudan which stagnated due to the South Sudanese Civil War.

Culture