Pascal’s, Leibniz’s, And Morland’s gadgets were curiosities, but with the commercial Revolution from the 18th century arrived a prevalent must perform repetitive operations efficiently. With other actions being mechanized, why not calculation? In 1820 Charles Xavier Thomas de Colmar of France effectively achieved this challenge when he built his Arithmometer, https://g.page/r/Ccsd-yw3vSInEBM