young larry page sergey brinGoogle founders Larry Page and Sergey Brin.RANDI LYNN BEACH / AP Images
Google is a global superpower. 
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.

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