33 photos of Google's rise from a Stanford dorm room to world domination

Not only is Google the most-visited website in the world - it also makes Google Android, the most popular operating system in the world.

And on the back of Google's incredibly profitable advertising business, its parent company Alphabet is worth $543.3 billion.

But it wasn't always that way.

Here's a look at the history of Google, from its roots in a pair of Stanford dorm rooms, to Larry Page and Sergey Brin's attempt to sell the company, all the way through the explosive announcement that Google was becoming Alphabet.