Hello everyone,
I just came across this article on the history of the piano and learnt so much!
Given that you teach piano and own a piano school, I would be surprised if you "learned" much of anything. Surely you knew a bit more than the information that was presented.
For any fellow student wanting to know the history of the piano, a quick google will give a number of excellent resources. This one, for example, is well written and more complete.
https://www.ptg.org/piano/history-pianos