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Napier's Bones
1617
Napier’s Bones was invented in 1617
Napier’s Bones was the first calculator that could find quotients(division), products(multiplication), and square roots
Napier’s Bones was later replaced by better calculating machines of that time
Napier’s Bones was created by John Napier
Refrences
https://en.wikipedia.org/wiki/John_Napier
https://en.wikipedia.org/wiki/Napier%27s_bones