Southern Africa, bordered on the northwest by the Kalahari Desert and on the northeast by the Zambezi River (see Map 10.2), enjoys a mild and temperate climate. Desert conditions prevail along the Atlantic coast. Eastward toward the Indian Ocean rainfall increases, amounting to fifty to ninety inches a year in some places. Temperate grasslands characterize the interior highlands. Considerable variations in climate occur throughout much of southern Africa from year to year.

Southern Africa has enormous mineral resources: gold, copper, diamonds, platinum, and uranium. Preindustrial peoples mined some of these deposits in open excavations down several feet, but fuller exploitation required modern technology.

Southern Africa has a history that is very different from those of West Africa, the Nile Valley, and the East African coast. Unlike the rest of coastal Africa, southern Africa remained far removed from the outside world until the Portuguese arrived in the late fifteenth century — with one important exception. Bantu-speaking people reached southern Africa in the eighth century. They brought skills in ironworking and mixed farming (settled crop production plus cattle and sheep raising) and immunity to the kinds of diseases that later decimated the Amerindians of South America (discussed in Chapter 16).

The earliest residents of southern Africa were hunters and gatherers. In the first millennium C.E. new farming techniques from the north arrived. Lack of water and timber slowed the spread of iron technology and tools and thus of crop production in southwestern Africa. These advances reached the western coastal region by 1500. By that date, Khoisan-speakers were tending livestock in the arid western regions. To the east, descendants of Bantu-speaking immigrants grew sorghum, raised cattle and sheep, and fought with iron-headed spears.

The nuclear family was the basic social unit among early southern African peoples, who practiced polygyny and traced descent in the male line. Several families formed bands numbering between twenty and eighty people. Such bands were not closed entities; people in neighboring territories identified with bands speaking the same language. As in most preindustrial societies, a division of labor existed whereby men hunted and women cared for children and raised edible plants. People lived in caves or in camps made of portable material, and they moved from one watering or hunting region to another as seasonal or environmental needs required.

In 1871 a German explorer came upon the ruined city of Great Zimbabwe southeast of what is now Masvingo in Zimbabwe. The ruins consist of two vast complexes of dry-stone buildings, a fortress, and an elliptically shaped enclosure commonly called the Temple. Stone carvings, gold and copper ornaments, and Asian ceramics once decorated the buildings. The ruins extend over sixty acres and are encircled by a massive wall. The entire city was built from local granite between the eleventh and fifteenth centuries without any outside influence.

These ruins tell a remarkable story. Great Zimbabwe was the political and religious capital of a vast empire. During the first millennium C.E. settled crop cultivation, cattle raising, and work in metal led to a steady buildup in population in the Zambezi-Limpopo region. The area also contained a rich gold-bearing belt. Gold ore lay near the surface; alluvial gold lay in the Zambezi River tributaries. In the tenth century the inhabitants collected the alluvial gold by panning and washing; after the year 1000 the gold was worked in open mines with iron picks. Traders shipped the gold eastward to Sofala (see Map 10.2). Great Zimbabwe’s wealth and power rested on this gold trade.

Great Zimbabwe declined in the fifteenth century, perhaps because the area had become agriculturally exhausted and could no longer support the large population. Some people migrated northward and settled in the Mazoe River Valley, a tributary of the Zambezi. This region also contained gold, and the settlers built a new empire in the tradition of Great Zimbabwe. This empire’s rulers were called Mwene Mutapa, and their power was also based on the gold trade down the Zambezi River to Indian Ocean ports. It was this gold that the Portuguese sought when they arrived on the East African coast in the late fifteenth century.