i love playing musical instruments like the piano, some call me an expert, are you interested in instruments? 
I enjoy playing musical instruments.  I used to play guitar and piano fairly often.
Thats so cool, I think its cool how the piano was invented in Italy, it makes it much more appealing, in fact it was made around the 1700's..
Who created the piano?
Bartolomeo Cristofori invented the piano. isnt it neat how the history of musical instruments dates to the beginnings of human culture? 
That is pretty neat.  What was the piano based on?
I'm not too sure but I know that The word "piano" is actually a shortened form of the word "pianoforte", the Italian word for the early 1700s versions of the instrument was "gravicembalo col piano e forte" and "fortepiano".
Interesting.  Has the piano always had the same number of keys?