Pennsylvania State Flag


Pennsylvania State Flag

Pennsylvania Statistics

Markers: 1772
..with maps 383
..with pictures 177

Newest Pennsylvania Markers

Home arrow Pennsylvania arrow Lehigh County arrow First School Slate Factory PA577
First School Slate Factory PA577 Print E-mail
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.
Main and Factory Sts., Slatington. Lehigh County Pennsylvania.
Comments (0)add
Show/Hide comment formtoggle


Write the displayed characters

busy
 
< Prev   Next >