Why Does Google Celebrate Its Birthday on September 27?
Google celebrates its birthday on September 27, but that is not the date when the company was officially incorporated. Google Inc. was incorporated on September 4, 1998, after Larry Page and Sergey Brin developed their search project at Stanford. The birthday date was not always September 27. During Google's early years, birthday celebrations appeared on several different September dates. The company eventually settled on September 27, and the date has been used consistently for its public birthday celebrations since the mid-2000s. The exact history is unusual enough that even Google has acknowledged that its birthday has not always had a single clear date. September 27 is therefore best understood as Google's traditional celebration date, while September 4, 1998 remains the company's incorporation date. In 2026, Google's September 27 celebration marks 28 years since the company was incorporated.