395 -400 million years ago
Sawdust is a byproduct of cutting or sanding wood, so it wasn't really "discovered" by a specific person. It has been around as long as people have been working with wood.
In the form of a metal fastener with spiral ridges, used to hold something to a piece of wood, about 650 years.
Any wood is good for burning in a wood burner as long as it has been dried and seasoned.
how long has deforestation been around
As long as guns have been around.
As long as So Random has been around.
how long has the london eye been around for
For 5 years.
Wood has been used as long as men needed to build things, for many millions of years.
234 years fool
how long have boxing been around?
boner