Why Nations Fail: The Origins of Power, Prosperity, and Poverty

to the slave trade. These goods included palm oil and kernels, peanuts, ivory, rubber, and gum arabic. As European and North American incomes expanded with the spread of the Industrial Revolution, demand for many of these tropical products rose sharply. Just as African societies took aggressive advantage of the economic opportunities presented by the slave trade, they did the same with legitimate commerce. But they did so in a peculiar context, one in which slavery was a way of life but the external demand for slaves had suddenly dried up. What were all these slaves to do now that they could not be sold to Europeans? The answer was simple: they could be profitably put to work, under coercion, in Africa, producing the new items of legitimate commerce.
    One of the best documented examples was in Asante, in modern Ghana. Prior to 1807, the Asante Empire had been heavily involved in the capturing and export of slaves, bringing them down to the coast to be sold at the great slaving castles of Cape Coast and Elmina. After 1807, with this option closed off, the Asante political elite reorganized their economy. However, slaving and slavery did not end. Rather, slaves were settled on large plantations, initially around the capital city of Kumase, but later spread throughout the empire (corresponding to most of the interior of Ghana). They were employed in the production of gold and kola nuts for export, but also grew large quantities of food and were intensively used as porters, since Asante did not use wheeled transportation. Farther east, similar adaptations took place. In Dahomey, for example, the king had large palm oil plantations near the coastal ports of Whydah and Porto Novo, all based on slave labor.
    So the abolition of the slave trade, rather than making slavery in Africa wither away, simply led to a redeployment of the slaves, who were now used within Africa rather than in the Americas. Moreover, many of the political institutions the slave trade had wrought in the previous two centuries were unaltered and patterns of behavior persisted. For example, in Nigeria in the 1820s and ’30s the once-great Oyo Kingdom collapsed. It was undermined by civil wars and the rise of the Yoruba city-states, such as Illorin and Ibadan, that were directly involved in the slave trade, to its south. In the 1830s, the capital of Oyo was sacked, and after that the Yoruba cities contested power with Dahomey for regional dominance. They fought an almost continuous series of wars in the first half of the century, which generated a massive supply of slaves. Along with this went the normal rounds of kidnapping and condemnation by oracles and smaller-scale raiding. Kidnapping was such a problem in some parts of Nigeria that parents would not let their children play outside for fear they would be taken and sold into slavery.
    As a result slavery, rather than contracting, appears to have expanded in Africa throughout the nineteenth century. Though accurate figures are hard to come by, a number of existing accounts written by travelers and merchants during this time suggest that in the West African kingdoms of Asante and Dahomey and in the Yoruba city-states well over half of the population were slaves. More accurate data exist from early French colonial records for the western Sudan, a large swath of western Africa, stretching from Senegal, via Mali and Burkina Faso, to Niger and Chad. In this region 30 percent of the population was enslaved in 1900.
    Just as with the emergence of legitimate commerce, the advent of formal colonization after the Scramble for Africa failed to destroy slavery in Africa. Though much of European penetration into Africa was justified on the grounds that slavery had to be combated and abolished, the reality was different. In most parts of colonial Africa, slavery continued well into the twentieth century. In Sierra Leone, for example, it was only in 1928 that slavery was finally abolished, even though the capital city of Freetown was originally established in the late eighteenth century as a haven for slaves repatriated from theAmericas. It then became an important base for the British antislavery squadron and a new home for freed slaves rescued from slave ships captured by the British navy. Even with this symbolism slavery lingered in Sierra Leone for 130 years. Liberia, just south of Sierra Leone, was likewise founded for freed American slaves in the 1840s. Yet there, too, slavery lingered into the twentieth