Colonization of the Congo of Hell. It was not until 1867 that the Congo was explored by Europeans, and even then it was not from the sea, but from the other side of the African continent. Setting out from Zanzibar, Henry Morton Stanley, a British-born American journalist and explorer aimed to find the famous Dr. Livingstone. Livingstone had not been heard from in several years and was, in fact, exploring the upper reaches of a great navigable inland river called the Lualaba, which Livingstone hoped was connected to the Nile, but which turned out to be the upper Congo. After leaving Livingstone, Stanley sailed
History of slavery in the Muslim world up until the 19th century. Livingstone and Stanley were then the first Europeans to penetrate to the interior of the Congo basin and to discover the scale of slavery there. The Arab Tippu Tib extended his influence and made many people slaves. After Europeans had settled in the Gulf of Guinea, the trans-Saharan slave trade became less important. In Zanzibar, slavery was abolished late, in 1897, under Sultan Hamoud bin Mohammed. The rest of Africa had no direct contact with Muslim slave-traders. While slaves were sometimes employed for manual labour during the Arab slave trade, this was usually the exception