Pascal’s, Leibniz’s, And Morland’s devices had been curiosities, but with the Industrial Revolution from the 18th century arrived a common have to complete repetitive functions competently. With other pursuits getting mechanized, Why don't you calculation? In 1820 Charles Xavier Thomas de Colmar of France correctly fulfilled this problem when he https://maps.app.goo.gl/UmD5JM5ww6NgkMzV9