The African slave was sometimes a criminal, but, more often than not, he was captured in battle. As the slave trade grew and with it the need for more slaves, the number of these battles increased. Clearly, many battles were being fought solely for the purpose of acquiring slaves who could then be sold to the European traders. Sometimes, too, the slave might have been the political enemy of the ruler or of some other powerful person.
The slaves were then marched to trading stations along the coast where a European agent, who resided at the station, inspected them and negotiated their purchase. The inspection was humiliating and degrading procedure. Men, women, and children usually appeared stark naked and underwent the close scrutiny of the agent and sometimes a physician. After the trauma of capture and the shame of inspection, the slaves were regimented into crowded quarters at the trading station or "factory" to wait for the next shipment to leave. They had to be supervised very closely as many tried to escape and others tried to commit suicide.
When a ship was ready to sail, the slaves were chained together and marched down to the shore. There they were bundled into large canoes and were paddled through the crashing breakers to where the slave ship was waiting. Slaves have told how they began the voyage in trepidation, being frightened by the sight of the "white devils" who, they had heard, liked to eat Africans. Then the long voyage commenced. Conditions here were even more crowded than at the "factory." Slaves were generally kept below deck with no sunshine or fresh air. They were crowded so close together that there was never any standing room and often not even sitting room. Again, they had to be supervised closely as many tried to starve themselves to death or to jump overboard. However, the greatest loss of slave property was due to disease, The ship's captain feared that disease would whittle away his profits, and, even more, he worried that it would attack him and his crew. When the passage was completed, and the West Indies had been safely reached, the slave again had to undergo the same kind of degrading inspection and sale which had occurred in Africa, but this time he had to experience the torment in a strange and distant land.
While the economic profits in the slave trade were great, so were the human losses. Statistics concerning the slave trade are often inaccurate or missing. However, it is generally agreed that at least fifteen million Africans, and perhaps many more, became slaves in the New World. About nine hundred thousand were brought in the sixteenth century, three million in the seventeenth century, seven million in the eighteenth century, and another four million in the nineteenth century.
The mortality rate among these new slaves ran very high. It is estimated that some five percent died in Africa on the way to the coast, another thirteen percent in transit to the West Indies, and still another thirty percent during the three-month seasoning period in the West Indies. This meant that about fifty percent of those originally captured in Africa died either in transit or while being prepared for servitude.
Even this statistic, harsh as it is, does not tell the whole story of the human cost involved in the slave trade. Most slaves were captured in the course of warfare, and many more Africans were killed in the course of this combat. The total number of deaths, then, ran much higher than those killed en route. Many Africans became casualty statistics, directly or indirectly, because of the slave trade. Beyond this, there was the untold human sorrow and misery borne by the friends and relatives of those Africans who were torn away from home and loved ones and were never seen again.
Statistics concerning profits in the slave trade are also difficult to obtain. Profits often ran as high as two or three hundred percent, and were an important part of the European economy. These profits provided much of the capital which helped to spur on the industrial revolution. When Queen Elizabeth, in 1562, heard that one of her subjects, John Hawkins, had become involved in the slave trade, she was very critical and commented that he would have to pay a very high price for dealing in human lives. However, when she was confronted with a copy of his profit ledger, her moral indignation softened, and she quickly became one of the members of the corporation. Some merchants were hit hard by the risks accompanying the slave trade and suffered financial disaster. The possible profits were so high, however, that other merchants were always eager to venture into this field and new capital was ever lacking.
The industrial revolution, which was partly financed by the slave trade, eventually abolished the need for slavery. The humanitarian outcry against both the slave trade and slavery which occurred at the end of the eighteenth century and swelled in the early nineteenth century, became a significant force as the need for slave labor diminished. In the beginning, as previously noted, the Europeans were not powerful enough to seize slaves at will or to invade the African kingdoms. But the industrial revolution had immeasurably widened the power gap between Europe and Africa. By the time the slave trade ended, and European adventurers had found new ways to achieve gigantic capital gains, Europe had achieved a power advantage sufficient to invade Africa at will.
As European interests in colonizing Africa increased, the European powers, at the middle of the nineteenth century, were also tearing one another apart in the process of this competitive expansion, In order to avoid further misfortune, the great powers of Europe met at the conference of Berlin in 1885. Without troubling to consult with any Africans, they drew lines on a map of Africa dividing it among themselves. It took only a very few years for a map drawing to become a physical reality. When the Europeans had finished exploiting Africa through the slave trade and had greatly weakened its societies, they invaded Africa in order to exploit its nonhuman material resources.