Explain why many people in ancient west africa valued salt more than gold.

People valued salt more than gold in ancient west africa because salt was scarce and the people used salt to preserve meat because meat would spoil very easily because of the heat and they didn't have refrigerators or even ice blocks back then
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This is what i found on google “the first mobile phone call was made 40 years ago today. on april 3, 1973, motorola employee martin cooper stood in midtown manhattan and placed a call to the headquarters of bell labs in new jersey.” i hope this you for what your looking.