When is Google’s birthday? September 27th is birthday of Google when first Google Doodle. Google’s 23rd Birthday .the Burning Man festival in 1998 shared. Google celebrates its Birthday with a Doodle every year since its fourth birthday in 2002. Facts about Google’s birthday and why are people confused? Google founded by Larry Page and Sergey Brin in 1998, However, not even Google seems to really know when it was formed. Since 2006, it has celebrated its birthday on September 27, but the year before that, had it as September 26. the idea for Google began years earlier in 1996, as a research project at Stanford University, when Page and Brin had a new idea for a search engine that would rank pages by how many other sites linked to it, rather than the crude format others used at the time – ranking them by how often the search term appeared on the page. confusion over its birthday in 2013, Google admitting it had celebrated its birthday on four different dates, but September 27 now seems to have stuck. The company may have just chosen the date because it was what the first birthday Doodle in 2002 used. Google has celebrated its birthday with a Doodle every year since its fourth birthday in 2002. However, the first Doodle, for the Burning Man festival in 1998, actually occurred before the company was technically founded. In 2004, its 6th birthday Doodle went online on September 7 and in the year before that, it was September 8.