In 1614, Sir John Napier invented a calculating device called Napier’s Bones. It was made up of a set of rods. One could perform multiplication and division besides, addition and subtraction with this device.
Calculating device called Napier’s Bones.
![Calculating device called Napier’s Bones.](https://informationq.com/wp-content/uploads/2016/12/Calculating-Device-called-Napiers-Bones.jpg)
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