Google just turned 15, and to celebrate the date, the Guardian found out some interesting facts most people don’t know about the search giant, created back in 1998 by Sergey Brin and Larry Page.

First of all, Google hasn’t always been Google. The website was originally called BackRub, with its homepage saying: “BackRub is a “web crawler” designed to traverse the web”. The company’s first doodle was a Burning Man symbol – it appeared when Google’s founders Larry Page and Sergey Brin went to the Burning Man festival in 1998 and added the doodle to inform visitors they were away from the office for a few days.

The company hired its first in-house chef, Charlie Ayers, in the end of 1999, when Google had only 40 employees. He went on to become the company’s executive chef, overseeing a team of 150 employees across 10 cafes at its headquarters in Mountain View, California. When Google went public in 2004, about 1,000 of its employees became millionaires. One of them was masseuse Bonnie Brown, who worked at the company giving back rubs for $450 a week back in 1999.

The “I'm Feeling Lucky” button, which allows to bypass the results page and take users directly to the first result of their search, cost the company approximately $100 million in lost advertising revenue annually. In the meantime, the first official tweet of the company was the words "I'm feeling lucky" in binary.

Almost all money of Mozilla (the rival company) comes from Google. The matter is that Google pays $300 million every year to remain the default search engine on Firefox.

A new Google employee is referred to as a "Noogler", while a former employee is called a "Xoogler". However, the company hires not only people but also goats. Back in 2009, Google rented about 200 goats for a week to eat the grass and fertilize the soil at its California HQ.

For the last three years, Google has been acquiring one company per week. Today you can use its mail service Gmail in over 50 languages, including Welsh, Basque, Tagalog, Malayalam, Telugu and Cherokee. The company’s founders Larry Page and Sergey Brin only own 16% of Google, which gives them a combined net worth of around $46 billion.