Caro Chamber of Commerce issued the following announcement on Mar 30.
NATIONAL PENCIL DAY
Each year, March 30th National Pencil Day honors the writing utensil that has done more than just teach millions the alphabet and draw straight lines. It’s also helped win wars and enabled amazing art.
Hymen Lipman received the first patent for attaching an eraser to the end of a pencil on this day in 1858. Before that time, pencils and erasers existed separately. Lipman combined the two making two tools much more convenient to use. The intuitive businessman also manufactured envelopes for his stationery shop and was the first to add adhesive to the flap of envelopes.
Original source can be found here.
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