Google launched 12 years ago, before you searched with Lycos and Excite, remember?
Google is 12 today. On the Google homepage you find a Cake doodle to mark the occasion. Google celebrated their 10th birthday on the 26th of September. Mashable says Google had sometimes already celebrated on the 7th. Apparently it is not a 100% clear for Google when they launched. I just did a search for google.com on the WayBackMachine and the earliest cached page is dated with November 11th, 1998. It is actually a funny homepage. It reads: "Welcome to Google. Google Search Engine Prototype - Might-work-some-of-the-time-prototype that is much more up to date."
I assume Google is celebrating not the launch of the site, but the start of the company. In any case. I am googling almost as long as Google is online.