information:extraction
Central Africa

Slaves were transported since antiquity along trade routes crossing the Sahara.

Oral tradition recounts slavery existing in the Kingdom of Kongo from the time of its formation with Lukeni lua Nimi enslaving the Mwene Kabunga whom he conquered to establish the kingdom. Early Portuguese writings show that the Kingdom did have slavery before contact, but that they were primarily war captives from the Kingdom of Ndongo.

Slavery was common along the Upper Congo River, and in the second half of the 18th century the region became a major source of slaves for the Atlantic slave trade, when high slave prices on the coast made long-distance slave trading profitable. When the Atlantic trade came to an end, the price of slaves dropped dramatically, and the regional slave trade grew, dominated by Bobangi traders. The Bobangi also purchased many slaves with profits from selling ivory, whom they used to populate their villages. Slaves who had been sold by their kin group, typically as a result of undesirable behaviour such as adultery, were unlikely to attempt to flee. The sale of children was also common in times of famine. Captured slaves were however likely to attempt to escape and had to be moved hundreds of kilometres from their homes as a safeguard against this.

The slave trade had a profound impact on this region of Central Africa, completely reshaping various aspects of society. For instance, the slave trade helped to create a robust regional trade network for the foodstuffs and crafted goods of small producers along the river. As only a few slaves in a canoe were sufficient to cover the cost of a trip and still make a profit, traders could fill any unused space on their canoes with other goods and transport them long distances without a significant markup on price. While the large profits from the Congo River slave trade only went to a small number of traders, this aspect of the trade provided some benefit to local producers and consumers.