And now a page from our "Sunday Morning" Almanac: March 30th, 1858, 156 years ago today . . . the day a Philadelphia inventor made his mark. For that was the day Hyman Lipman patented the first pencil ...

Erasers are a staple in any stationery kit, often used to correct mistakes when writing or drawing with a pencil. Whether it’s at school, work, or during an art project, they serve as a handy tool to ...

Philadelphia inventor Hymen L. Lipman rushed heroically to the aid of mistake-prone schoolchildren, draftsmen and artists everywhere when he secured the patent for the pencil with eraser on this day ...

“Everyone makes mistakes,” your mom told you. “That’s why pencils have erasers.” But did she ever tell you how many different kinds of erasers there are? If you think there’s just the one—the pink ...

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