What is National Rubber Eraser Day?
It's okay to make a mistake. National Rubber Eraser Day, April 15th, honors the date the invention first made written errors since 1770.
Lead or charcoal marks were erased from paper before rubber erasers 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 in lieu of rubber erasers," a Tokyo student explained, "and so they would offer them to us with no limit on the number." We thought nothing of taking these and eating a solid part of a solid meal would at least partially satisfy our hunger."
- Joseph Priestly invented a vegetable gum to erase pencil marks on April 15, 1770. The substance was described as "rubber," by He dubbed it "rubber"
- Edward Nairne invented the first commercial rubber eraser in 1770
