In western Africa, shell money was usual tender up until the middle of the 19th century.

A disagreement could throw western Africa into famine for five years.

Most common in central and western Africa, where humans are thought to be the primary reservoir.

The instrument is popular in western Africa, where he has lived and traveled.

The situation was most acute in northern, western and central Africa.

Epidemiologists believe most if not all are among people from western Africa.

The university is one of the premier technological universities in western Africa.

It is distributed throughout much of southern and western Africa, particularly the tropical regions.

The salt can also be used to make chemical products which historically western Africa has not been capable of making.

It is found through much of central and western Africa.