Answer:
John Napier in 1617
Step-by-step explanation:
Napier bones is a calculating device consisting of a set of graduated rods, that is used for multiplication and division, and is based on logarithms.
Inventor : John Napier in Year 1617
He was also the inventor of logarithms (which was invented to aid calculation known as 'Napier's Bones' in 1617.
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