Google’s birthday has shifted around over the years, but it currently is celebrated on September 27th. The exact year of Google’s “birth” depends on how you measure it.
In the summer of 1995, Google founders Larry Page and Sergey Brin first met at Stanford.
Larry Page was considering attending Stanford for grad school, and Sergey Brin was the second-year grad student assigned to show him around. Larry Page decided to attend Stanford.