Today on the Google home page is a special piano Google Logo, aka Doodle for the person who invented the piano, Bartolomeo Cristofori. He was born today, 360 years ago on May 4, 1655 in Padua in the Republic of Venice, Italy.
He was employed by Ferdinando de' Medici, Grand Prince of Tuscany, as the Keeper of the Instruments, when he invented the piano. However it is not clear exactly when the piano was invented. It is said by the year 1700, You can see some pictures of early pianos on Wikipedia.
The Google Doodle actually lets you play the piano with different intensity, here is a video of my piano skills:
The Piano may be one of the most important instruments ever, but I am far from being knowledgable in music, so I may not know what I am talking about.
Truth is, these Google logos rock because it teaches people who don't know something about a topic, just a little something new.
Forum discussion at Google+.