In the medieval Europe’s monasteries dedicated to the copying of manuscripts, the monks used to mark the paper with ink by using a kind of brush called penicillum, kind of similar to a brush. Something not new, if we consider that the Romans used a cane with animal hair trimmed for this purpose. It was not until the first third of the 16th century, when the German painter and engraver Alberto Durero invented something more like a pencil: a lead bar and a certain tin alloy called a silver tip, whose mark could be erased with breadcrumbs. Some historians say that Josef Hardtmuth, of Austrian origin, son of a carpenter, is the responsible for his appearance. Discontent with the low quality of the tools that were available to write, he had the idea of mixing clay with graphite powder, and after many tests he found the right degree of hardness for the pencil, and in 1792 he founded his own company in Vienna.