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Before erasers, writers used bread to erase mistakes. Joseph Priestley discovered a substance that could remove pencil marks, leading to the first erasers. Today’s erasers contain powdered pumice stone and are made from vinyl.
Back when writers used pencil and paper to express themselves, there were inevitably mistakes that needed attention. Before erasers were invented in the 1770s, a little bread and water worked: Writers would simply take a small piece of bread (with no crust), moisten it, ball it up, and erase typos. In the late 18th century, Joseph Priestley discovered a substance – later known as an eraser because it was used to erase mistakes – that would remove marks made by a black pencil. The substance, formerly known as guinea gum, actually releases the graphite particles that adhere to the paper fibers. British engineer Edward Nairne expanded on the idea and marketed the first erasers in Europe.
More information about the tyres:
Joseph Priestley was an English theologian, philosopher and chemist who is often credited with the discovery of oxygen. He also created the first carbonated water.
Pencils with erasers on top — called plugs and held in place with a ferrule — are an American invention. Most of the pencils sold in Europe do not have them.
Today’s erasers contain powdered pumice stone to improve abrasiveness. They are also most likely made from vinyl rather than rubber.
