First School Slate Factory

First School Slate Factory is a Pennsylvania historical marker in Slatington, Lehigh County, dedicated 2003.

Lehigh County · dedicated 2003 · Main and Factory Sts., Slatington

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The first factory to produce blackboard and school slates common in U.S. classrooms opened nearby in 1847. Slate production peaked at over one million pieces early in the 20th century, leading to Slatington's distinction as the nation's top slate and blackboard producer.

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under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

First School Slate Factory

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