The link here is to its-teachers.com which has created an adaptation of our learning materials using a Pencil Webquest to be answered from information found in our Story of Pencils section.

The post indicates this webquest was created and implemented in celebration of the 150th anniversary of the pencil. They seem to be refering to the 150th anniversary of the Lipman patent, as our own pencil history page shows that the first mass produced pencils date to 1662.