Kwakazotora nguva yakareba sei kuti kushandiswa kwesimbi kuve kwakakurumbira muWest Africa pashure pokunge kwatangwa muNorth Africa?
Context:Pakazosvika chiuru chemakore chokutanga B.C.E., kushandiswa kwesimbi kwakanga kwava kuitwa muNorth Africa. Panenge panguva iyoyo yakasimbiswawo muzvikamu zve sub-Saharan Africa, kungave kuburikidza nekugadzirwa kwakazvimiririra ikoko kana kupararira kubva kuchamhembe uye kwakanyangarika pasi pemamiriro asingazivikanwe munenge muna 500 CE, mushure mekugara anenge makore 2,000, uye na 500 BCE, kugadzira simbi kwakatanga kuve kwakajairika muWest Africa. Kushanda nesimbi kwakanga kwava kunyatsoitwa munenge muna 500 B.C.E. munzvimbo dzakawanda dzokuEast neWest Africa, kunyange zvazvo dzimwe nzvimbo dzisina kutanga kushanda nesimbi kutozosvikira mumakore ekutanga C.E. Zvinhu zvendarira zvinobva kuEgipita, North Africa, Nubia, neEthiopia zvinodzokera shure kubva munenge muna 500 BCE zvakacherwa muWest Africa, zvichiratidza kuti Trans-Saharan trade network yakanga yatangwa panguva iyi.
Kushanda nesimbi kwakatangwa muNorth Africa munenge mumireniyumu yokutanga BCE uye kwakava kwakajairika muWest Africa na500 BCE. Izvi zvinoreva kuti zvakatora makore 500 (1000-500) kuti kushandiswa kwesimbi kuve kwakajairika muWest Africa zvichitevera kuiswa kwayo kuNorth Africa.