Happy birthday, Google. You didn't invent Android, but you made it awesome, for which we are sincerely grateful. Most of the other stuff that you do is pretty cool too. We'd tell you to watch a certain John Hughes movie, but you're too young to appreciate the reference.
The Doodle seen on Google.com today.
Google declared September 27th its "official" birthday with a 15-year celebration last year, though a precise date for the start of the company isn't really known - you could say that the start of the project goes back at least 18 years to when Larry Page and Sergey Brin began work on their custom "BackRub" search engine at Stanford University.