Larry Page was born on March 26, 1973 in Ann Arbor, Michigan

Sergey Brin was born on August 21, 1973 in Moscow, Russia

Tim Berners-Lee and Robert Cailliau proposed a 'hypertext' system starting the modern Internet

The World Wide Web is launched to the public on August 6, 1991

Sergey Brin attended the University of Maryland, College Park to study computer science and mathematics and received his Bachelor of Science degree in May 1993 with honors

Larry Page attended the University of Michigan to study computer engineering and received his Bachelor of Science degree with honors.

Sergey Brin and Larry Page meet at Stamford University, in Palo Alto, California, to study for their Phd's.

March 1996 - Sergey Brin and Larry Page begin a research project working on the Stanford Digital Library Project (SDLP). The aim of the project was “to develop the enabling technologies for a single, integrated and universal digital library.

Larry Page and Sergey Brin collaborate on their 'BackRub' search engine using back links in their search engine design.

1996 Larry Page and Sergey Brin produce a paper, 'Anatomy of a Large-Scale Hypertextual Web Search Engine,' became the basis for the Google search engine.

They called the search engine Google after the mathematical term 'Googol' which is a a number that is equal to 1 followed by 100 zeros and expressed as 10100 which they felt reflected their mission to organize the massive amount of information available on the Web

August 1996 - The first version of Google is released on the Stanford Web. The address: google.stanford.edu.

Google.com was registered as a domain name.

Larry Page and Sergey Brin try to sell Google through the venture capital firm of Kleiner Perkins Caufield & Byers (KPCB). They are unsuccessful, nobody was interested in buying their serach engine and they gave up the idea of selling Google.

Andy Bechtolsheim, a founder of Sun Microsystems, watched the demo for Google (which was getting more than 10,000 queries per day) and wrote a $100,000 check to get the company started.

September 7 1998 - Google became an official corporation. The company's mission statement was 'to organize the world's information and make it universally accessible and useful' and the company's unofficial slogan was 'Don't be evil'

PC magazine recognized Google as the search engine of choice and one of the Top 100 Web Sites for 1998.

Google opened its first office in Palo Alto and later moved to Bayshore Drive in nearby Mountain View.

Kleiner Perkins Caufield & Byers, in partnership with Sequoia Capital, provide Google with additional venture capital of $25 million.

Sergey Brin and Larry Page drop out of the Stanford graduate studies program to concentrate on their company

Google searches were made by 18 million people per day

Foreign language Versions of Google.com were released in French, German, Italian, Swedish, Finnish, Spanish, Portuguese, Dutch, Norwegian, Danish, Chinese, Japanese and Korean

Google began selling AdWords, its keyword related contextual advertising. In its early years Google did not allow advertising in their search engine results. The search engine became profitable with the introduction of unobtrusive text advertisements placed at the side of search results.

Eric Schmidt joined Google as its first chairman and later became its chief executive officer. Larry Page became president of products and Sergey Brin became president of technology

Google's first acquisition was a discussion group site called UseNet which was owned by Deja.com. This was merged into Google Groups

Google News service is launched.

Larry Page was named a World Economic Forum Global Leader for Tomorrow.

Google AdSense went into service for advertisers

Google moved to its new Mountain View campus which was nicknamed Googleplex.

Sergey Brin and Larry Page were honored with the Marconi Prize

iGoogle became a public company on August 19, 2004, trading on the NASDAQ stock exchange as GOOG.

Google formed the not-for-profit philanthropic Google.org

Google raised $4.2 billion through its second stock offering

Google Maps, Google Earth, and iGoogle were released

A new verb 'to google' was officially added to the Oxford English Dictionary on June 15, 2006

Google purchased YouTube

Sergey Brin and Anne Wojcicki were married in the Bahamas and Larry Page and Lucinda Southworth were married on Necker Island in the Caribbean.

Gmail became available to the general public on February 7, 2007

Google purchased DoubleClick

Android distribution started on 5 November 2007. Android has a vast number of developers who write applications ('apps') that extend the functionality of the devices

Google Health became available

Google launched Chrome, its first Web browser

September 2008: T-Mobile released the G1, the first Android-based phone.

November 2009 - Forbes magazine decided Sergey Brin and Larry Page were the fifth most powerful people in the world

Google Wave was introduced

January 5, 2010, Google released an Android phone under its own company name called the Nexus One

Google was also nominated in 2010 to be the worlds most attractive employer to graduating students

March - the new Google +1 is launched

Co-founder Larry Page takes over the role of CEO in April 2011. Eric Schmidt becomes Executive Chairman.

The dominant market position of Google's services has led to criticism of the company over issues including privacy, copyright, and censorship