Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
B. 1617
B. 1617
Napier’s Bones were invented in the early 17th century by John Napier, a Scottish mathematician. They were a set of rods used for calculations, particularly multiplication and division, and are considered an early form of a calculating device.