April 15, 1770 — Joseph Priestley recorded his discovery of a item made from rubber imported from Brazil that would erase — “rub out” — pencil marks. Priestly wrote, “I have seen a substance excellently adapted to the purpose of wiping from paper the mark of black led pencil.” Priestly called his new produce a “rubber”:
Links:
http://inventors.about.com/od/pstartinventors/a/JosephPriestley.htm
http://www.holidayinsights.com/other/rubbereraserday.htm
