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| | Thomas Fuller, African slave and mathematician |
 | | His learning of number words, a numeration system, of arithmetical operations, of riddles and mathematical games, etc. The extant evidence of this is not great, although we do know of an astronomer/mathematician, Muhammad ibn Muhammad, of that period from what is now called Nigeria. |
 | | The Fidasians are so expert in keeping their accounts, that they easily reckon as exact, and as quick by memory, as we can do with pen and ink, though the sum amount to never so many thousands: which very much facilities the trade the Europeans have with them. |
 | | He is so unfortunate often, as to make a mistake; but he no sooner errs, than he is detected by this man of inferiour capacity, whom he can neither deceive in the name or quality of his goods, nor in the balance of his account. |
| www.math.buffalo.edu /mad/special/fuller_thomas_1710-1790.html (637 words) |
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