States that flourished in the area immediately south of the Zambesi River from the 15th to the 19th centuries were ruled by Karanga dynasties and were the cultural heirs of Great Zimbabwe. The most important of these states was Mokaranga, whose rulers bore the title of Monomotapa. Other important states—Teve, Manica, Barue, and Butua—all depended on the mining and trading of gold. Commerce was conducted at fairs attended by merchants from coastal towns such as Sofala and Chibuene, which were part of the networks of Indian Ocean commerce. At the beginning of the 16th century this trade attracted Portuguese traders who visited the fairs. In the 17th century, the Portuguese gradually expanded their presence through the institution of the prazos, whose owners acquired jurisdiction over extensive areas formerly ruled by the Karanga. The Portuguese were expelled from the Zimbabwe plateau in the 1690s and were succeeded by the Rosvi, another Karanga ruling elite. These states were devastated by droughts from the 1790s to the 1830s. All of them experienced civil wars before they were conquered by the Ngoni, who established the kingdom of Gaza, which covered the whole area south of the Zambesi as far as the Limpopo River until the time of the Scramble for Africa. Some of the old Karanga states, notably Manica and Barue, survived as tributaries of the Gaza state.
Ralph A. Austen
Tropical Africa has been in communication with the global economy since at least the last centuries bce through either land travel across the Sahara to the Mediterranean or navigation along the Indian Ocean coast. Despite recent archaeological research, not too much is known about this earliest trade. Only after Islam was firmly established in North Africa and the Indian Ocean do we have evidence of significant trade (slaves, gold, and ivory) and cultural exchange across these frontiers. Entrepôt cities now flourished in both the West and Central Sudan and the Swahili coast, where either camel caravans or large dhow vessels received export goods from indigenous Muslim merchants. During the 15th century European navigators opened up the Atlantic coast of Africa as well as a direct water route to the Indian Ocean. For the next 500 years Europeans dominated Africa’s global connections, initially seeking gold, then slaves for New World plantations, and later large quantities of less costly commodities such as vegetable oils, cocoa, coffee, and cotton. Initially Africa’s trans-Saharan and Indian Ocean commerce continued to operate under the control of Muslim rulers and merchants and even grew in volume, although declining in global significance. By the early 20th century European powers had established colonial regimes in almost all of tropical Africa, providing new infrastructures of political administration and mechanized transport (mainly railroads) that overcame the geographical barriers impeding commerce between the coasts and the continent’s interiors. However, limited capital and the spatial orientation of colonial transport undermined the dynamism of such advances. In the last stages of colonialism (c. 1945–1960) and the first decades of political independence, greater investments were made in both infrastructure and industrialization but with poor results leading, from the 1980s, to the global imposition of “structural adjustment” policies upon African states. During the early 21st century African economies experienced “miraculous” growth linked to a major new relationship with China.