in northern
Botswana, Elphick's nuclear area. Archaeologists
have dis-
covered that pastoralism began in Southern Africa several centuries before
the Christian era. Several aspects of this process are still controversial, but
it seems likely that, after people in tropical East Africa had begun to
incorporate
sheep and cattle into their economies several millennia ago,
pastoralism,
as an extension
of the hunting-gathering
way of life, was
II