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.
History of colonialismThe historical phenomenon of colonization is one that stretches around the globe and across time. Ancient and medieval colonialism was practiced by the Phoenicians, the Greeks, the Turks, and the Arabs. Colonialism in the modern sense began with the "Age of Discovery", led by Portuguese, who became increasingly adventuresome following the conquest of Ceuta in 1415, aiming to control navigation through the Strait of Gibraltar, expand Christianity, obtain plunder, and suppress predation on Portuguese populations by Barbary pirates as part of a longstanding African slave trade; at that point a minor trade, one the Portuguese would soon reverse and surpass.
Congo BasinThe Congo Basin (Bassin du Congo) is the sedimentary basin of the Congo River. The Congo Basin is located in Central Africa, in a region known as west equatorial Africa. The Congo Basin region is sometimes known simply as the Congo. It contains some of the largest tropical rainforests in the world and is an important source of water used in agriculture and energy generation. The rainforest in the Congo Basin is the largest rainforest in Africa and second only to the Amazon rainforest in size, with 300 million hectares compared to the 800 million hectares in the Amazon.
Scramble for AfricaThe Scramble for Africa is a term widely used by historians to describe the invasion, annexation, division, and colonization of most of Africa by seven Western European powers during an era known as "New Imperialism" (between 1833 and 1914). The 10 percent of Africa that was under formal European control in 1870 increased to almost 90 percent by 1914, with only Liberia and Ethiopia remaining independent. The Berlin Conference of 1884, which regulated European colonization and trade in Africa, is usually accepted as the beginning.
AngolaAngola (ænˈɡoʊlə ; ɐ̃ˈɡɔlɐ; Ngola, ŋɔla), officially the Republic of Angola (República de Angola), is a country on the west-central coast of Southern Africa. It is the second-largest Lusophone (Portuguese-speaking) country in both total area and population (behind Brazil in both cases), and is the seventh-largest country in Africa. It is bordered by Namibia to the south, the Democratic Republic of the Congo to the north, Zambia to the east, and the Atlantic Ocean to the west.
Congo RiverThe Congo River (Nzâdi Kôngo, Fleuve Congo, Rio Congo), formerly also known as the Zaire River, is the second-longest river in Africa, shorter only than the Nile, as well as the third largest river in the world by discharge volume, following the Amazon and the Ganges rivers. It is also the world's deepest recorded river, with measured depths of around . The Congo-Lualaba-Chambeshi River system has an overall length of , which makes it the world's ninth-longest river.
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.
