Respuesta :

Answer:

Inventor :   John Napier in Year 1617

Explanation:

He was also the inventor of logarithms (which was  invented to aid calculation known as 'Napier's Bones' in 1617.

Diosan

Answer:

John Napier in 1617

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.