Google released the first beta version of Chrome on September 2, 2008. The first final release followed on December 11, 2008. Since its launch, Chrome has captured the lead in the market share race and is currently slightly ahead of Microsoft's Internet Explorer, with 33.59 percent versus 32.85 percent share.
To review Chrome's milestones, Google posted the Chrome Time Machine, which allows the user to click through all major announcements. My personal favorite is the speed tests video, including a comparison of Chrome page load times against a potato gun. The video was launched when Chrome 5 was current (today were are using Chrome 21 as final version and Chrome 23 as developer version).