slave trade, African

slave trade, African The trade in which Europeans captured people in Africa and transported them as slaves mainly to the Americas, where slave labour enabled colonists to establish PLANTATIONS. Following their 15th-century discoveries, the Portuguese began taking slaves from Senegambia and Guinea-Bissau: they went to Portugal, the Atlantic islands, and later to the Americas; by the 16th century they came also from Angola, and, occasionally, Mozambique. In the 17th century trading forts, stretching from Arguin (now in Mauritania) to Angola, had been established by slavers from Brandenburg, Denmark, Holland, Courland (on the eastern Baltic), England, France, Genoa, and Sweden. These forts could not have operated without active African participation in supplying slaves for shipment to Brazil, and to British, French, Dutch, and Spanish colonies. It is thought that by the mid-19th century 9.5 million Africans had been transported to the New World, in addition to those who died while being captured or in transit. This figure does not include the Arab slave trade nor the flourishing trade in slaves within Africa. Disgust at this treatment of Africans led to demands for emancipation of the slaves and the abolition of the slave trade in the 19th century. (See also SLAVERY; SLAVE TRADE, ABOLITION OF; SLAVES, US PROCLAMATION FOR THE EMANCIPATION OF.)