Zanzibar was once East Africa's main slave-trading port, first colonized by Portuguese than by Arabs. The slaves were put on the market here exactly this point in Zanzibar Stone Town. Buyers would examine the arms, mouths, teeth and eyes of the slaves. They were even whipped to prove their strength.
After many weeks or months of marching, the slave caravans reached the coast at ports such as Kilwa and Bagamoyo. Here, the slaves were loaded onto dhows, seldom more than 30–35m long, and taken to Zanzibar. Each dhow carried between 200 and 600 slaves, all crammed below decks on specially constructed bamboo shelves with about 1m of headroom. There was not enough room to sit, or to kneel or squat, just a crippling combination of the three. Sometimes slaves were closely packed in open boats, their bodies exposed day and night to the sea and the rain. They were thirsty, hungry and seasick and many died of exhaustion. Meals consisted of a daily handful of rice and a cup of stagnant water. Sanitation was non-existent and disease spread rapidly. When any illness was discovered, infected slaves were simply thrown overboard.
By the time the slaves reached Zanzibar, they were suffering from starvation and the effects of torturously cramped conditions: it was sometimes a week after landing before they could straighten their legs. The slave traders paid customs duty on all slaves who landed, so any considered too weak to live were thrown overboard as the ship approached the port. Even so, many more slaves died in the Customs House or on the streets between the port and the market. Before being put on sale, the slaves wait days long in the underground rooms. Below you see a room for 75 slaves.
Slaves who did survive were cleaned so that they would fetch a better price.
Men and boys had their skins oiled and were given a strip of material to put around their waist. Women and girls were draped in cloth, and sometimes even adorned with necklaces, earrings and bracelets. Generous layers of henna and kohl were smeared onto their foreheads and eyebrows.
The slaves were put on sale in the market in the late afternoon. They were arranged in lines, with the youngest and smallest at the front and the tallest at the rear, and paraded through the market by their owner, who would call out the selling prices. The owner would assure potential buyers that the slaves had no defects in speech or hearing, and that there was no disease present. Buyers would examine the arms, mouths, teeth and eyes of the slaves, and the slaves were often made to walk or run, to prove they were capable of work. Once their suitability had been established, they were sold to the highest bidder. After being sold to a new owner, slaves were either put to work in the houses and plantations of Zanzibar or else transported again, on a much longer sea voyage, to Oman or elsewhere in the Indian Ocean. However, the slaves were relatively well treated when they arrived at their new homes. They were fed, housed and clothed, and given small plots of land, with time off to tend them. Young mothers were rarely separated from their children, and good slaves were often freed after a few years. Many took paid jobs, such as gardeners and farmers, for their previous masters: some even became leaders of slave caravans or masters of slave ships.
Source for the text: Charles Miller 'The Lunatic Express', Macmillan 1971