What is the story behind the invention of sandpaper?

Question

Where? When? Who?

Answer 1

The first recorded instance of sandpaper was in 13th century China when crushed shells, seeds, and sand were bonded to parchment using natural gum. Shark skin was used as a sandpaper. Sandpaper was originally known as glass paper, as it used particles of glass.

The rough scales of the living fossil Coelacanth are used by the natives of Comoros as sandpaper.

Glass paper was being manufactured by John Oakey's company in London by 1833, who had developed new adhesive techniques and processes that could be mass-produced. A process for making sandpaper was patented in the United States on June 14, 1834 by Isaac Fischer, Jr., of Springfield, Vermont.

In 1916 3M invented a type of waterproof sandpaper, known as Wetordry™, and its first application was for automotive paint refinishing.

Sandpaper has occasionally been used as a surface for painting, as by Joan Miro. Sandpaper was even used as a musical instrument, in Leroy Anderson's Sandpaper Ballet.

By the way , the definition of cruelty is leaving sandpaper in a blind man's toilet.