when did google come out

Google was officially founded on September 4, 1998, by Larry Page and Sergey Brin in Menlo Park, California. Before that, in 1995, the two were working on a research project called "BackRub" at Stanford University which later became Google. The name "Google" is a play on the mathematical term "googol," representing the number 1 followed by 100 zeros, symbolizing their mission to organize a vast amount of information.