Search engine giant Google turned 22 on Sunday and marked the day with a very special Doodle, making a collage of other birthday Doodles.

In 2006, the word ‘Google’ was officially included in the Oxford English Dictionary as a verb.

After 4 four years, the word ‘Google’ was chosen as the ‘most useful word’ by the American Dialect Society.

The word was added to the 11th edition of the Merrian-Webster Collegiate Dictionary the same year.

September 26 is a very special day for Google.

On this day, 22 years ago in 1998, two Ph.D. students of Stanford University in California, Sergey Brin & Larry Page, came up with the idea of setting up a ‘large scale search engine’ and now it is a history.

Page and Brin own about 14% of its shares and control 56% of the stockholder voting power through supervoting stock.

Page and Brin incorporated Google as a California privately held company on September 4, 1998, in California.

Google was then reincorporated in Delaware on October 22, 2002.

Sunday’s Google Doodle shows an animated G donning a birthday hat.

It is looking into a laptop while being surrounded by a gift box, a cake, and a box of candies.

The laptop screen shows G’s friends in four separate windows, in full celebratory mode.

The animation marks the site’s 22nd birthday.

The official Google Doodle page shares the history of the founders of Google and how they trace their roots back to the sunny campus of Stanford University.

“As graduate students, the pair set out to improve the way people interacted with the wealth of information on the World Wide Web. In 1998, Google was born, and the rest is history,” the page says about Larry Page and Sergey Brin.

“The now world-famous moniker is a play on a mathematical term that arose out of an unassuming stroll around the year 1920. While walking in the woods of New Jersey, American mathematician Edward Kasner asked his young nephew Milton Sirotta to help him choose a name for a mind-boggling number: a 1 followed by 100 zeros.

“Milton’s reply? A googol! The term gained widespread visibility twenty years later with its inclusion in a 1940 book Kasner co-authored called “Mathematics and the Imagination,” it adds.