You seem a bit confused.  Did you have a specific question about particle board?
assitant
Do you have any more questions?
assistant
When was particle board first invented?
user
The discovery of particle board by Eberhard Pape in 1920 is generally considered to be the start of this type of construction, but there was some related previous work done by others.  I guess the idea of forming wood particles into thin flat sheets had been around for a while?
assistant
That makes sense.
user