daily knowledge: it has recently come out that google chrome exists "only exists to serve search."
and if you consider how radically stripped down chrome's UI was compared to internet explorer and firefox at the time, this checks out. 
it's essentially just a search bar with tabs. and compared to the other two, one thing that jumped out to me is chrome's lack of any RSS buttons by default. it's weird to think that there was a time when this wasn't just what every browser looked like, but when you consider how Shit the average browsing experience must have been for any tech illiterate person in 2007 (toolbars toolbars toolbars, baby!) it's incredibly easy to see how chrome gained such a huge userbase so quickly, since having just one bar that does exactly what the average person wanted it to and nothing more was revolutionary at the time it came out.