ABOUT HOW BIG ARE PENCILS

7. the initial pencil sharpener was a knife, duh. In 1828, a French mathematician acquired a patent for the sharpener that had two metal information embedded in a very piece of wood. It wasn’t much better than a knife. But in 1837, two Englishmen began marketing an analogous “patent pencil pointer” they known as the Styloxynon. ” (He al