Question

ʜᴀɴɴ ᴄʜʟ ʙᴇ ʜᴀᴡᴀ ᴀᴀɴᴇ ᴅᴇ..
ᴀɴᴅ ʀɪʏᴀɴsʜ ᴛʜɴᴋ ɴɪ ᴄʜᴀʜɪʏᴇᴇᴇᴇ​

Answer 1

$\huge\mathfrak\pink{Answer}$

The step reckoner was a digital mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz around 1673 and completed in 1694. The name comes from the translation of the German term for its operating mechanism, Staffelwalze, meaning "stepped drum".

$\huge\mathfrak\green{Hope \: it \: helps}$