When is National Rubber Eraser Day?

It's okay to make a mistake. The invention first made written mistakes since 1770, according to National Rubber Eraser Day on April 15th, correcting mistakes since 1770.

Before rubber erasers were invented, rubber tablets of rubber (or wax) were used to erase lead or charcoal marks from paper. Crustless bread was another alternative for the eraser. "Bread erasers were used in place of rubber erasers," a Tokyo student said, "and so they would give them to us with no limit on the number." So we thought nothing of taking these and eating a solid part of a solid part to at least partially satisfy our hunger."

• Joseph Priestly invented vegetable gum to erase pencil marks on April 15, 1770. – Joseph Priestly invented a vegetable gum to erase pencil marks. "Ruber," He described the drug as "rubber"
• Edward Nairne, 1770 – Edward Nairne invented the first commercial rubber eraser
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