Ed Pawlowski wrote in
:

https://en.wikipedia.org/wiki/Tabitha_Babbitt
Circular saw was invented by a woman and used water power. 1813.

A common claim, but not true. The Royal Navy had circular saws
in the Portsmouth dockyards in the 1790s and contemporary texts
don't describe them as a new invention. The Portsmouth dockyard
had numerous tools powered by steam engine and belting by 1802,
some of which have been preserved.

The actual inventor of the circular saw seems to be lost to time.

John