World Wide Web: Definition, history and facts

An illustration of the World Wide Web
(Image credit: Getty Images)

Before the invention of the World Wide Web (WWW), the earliest internet users were mainly researchers and military personnel. The network was complicated and, although it was possible to share files and messages, the interface was not user-friendly. 

In 1993, a researcher at CERN (opens in new tab) called Tim Berners-Lee started building a layer on top of the internet to make it easier to access, according to the World Wide Web Foundation (opens in new tab)

Berners-Lee's idea was to make information available as pages, written in a shared language called Hypertext Markup Language (HTML). This eventually became the World Wide Web, which is the platform used by billions of internet users around the world.

Creating the World Wide Web

After completing his first-class degree in physics at Oxford University, Berners-Lee moved on to become a scientist at CERN, the European Organization for Nuclear Research in 1989, according to the World Wide Web Consortium (W3C (opens in new tab)). 

That same year, Berners-Lee published a paper titled "Information Management: A Proposal", in which he suggested the combination of hypertext and the internet for an information management system.

In this initial proposal for the World Wide Web, Berners-Lee described the shortcomings of the then-current system at CERN in allowing scientists access to their information and documentation. Though the internet had been around for a decade, the information had limited accessibility. 

Berners-Lee set out to connect both the internet and a web-structured platform to revolutionise data sharing. To achieve this he created the Hypertext Transfer Protocol (HTTP), Uniform Resource Identifier (URI) and Hypertext Makeup Language (HTML), the building blocks for internet browsing that remain in use today, according to CERN (opens in new tab).

Created to better serve CERN scientists and assist those across the globe with their research, Berners-Lee launched the first website, http:// (opens in new tab), in 1990. This new way to obtain information was something Berners-Lee wanted the entire world to have access to. He decided to make the World Wide Web an open and royalty- free software, allowing it to grow beyond academia. 

By 1994 there were around 3,000 websites in existence, according to the World Economic Forum (opens in new tab). After such a roaring success, Berners-Lee created W3C, a web standards organisation that also develops web specifications, guidelines, software and tools. With the continued success of the iconic ‘www.’, Berners-Lee founded the World Wide Web Foundation in 2009, an organisation working to deliver digital equality to the world.

Tim Berners-Lee at a computer

Tim Berners-Lee invented the World Wide Web as an essential tool for high energy physics at CERN from 1989 to 1994. (Image credit: CERN)

The development of the world wide web has meant that anyone can add to the internet, creating their own pages and sharing their own content. No-one owns the internet, according to the journal Educational Technology (opens in new tab), although big tech companies wield a lot of its power. 

It is simply a collection of interlinked networks managed by companies, governments, research organizations, and individuals. Google, Microsoft, Amazon and others have changed the way it works, but so too have amateurs creating content from their homes.

After the invention of the world wide web, users continued to expand the internet, sharing bigger and more complicated content. In 1993, there were fewer than 150 websites on the internet, now there are almost two billion, according to Internet Live Stats (opens in new tab). This ever-growing web of connections has completely changed the way that people live, work, and interact.

Additional resources

For more information about the invention of the World Wide Web check out "Weaving the Web: The Past, Present and Future of the World Wide Web by its Inventor (opens in new tab)", by Tim Berners-Lee and the World Wide Web Consortium (W3C) (opens in new tab).


Laura Mears

Laura Mears is a biologist who left the confines of the lab for the rigours of an office desk as a keen science writer and a full-time software engineer. Laura has previously written for the magazines How It Works and T3.  Laura's main interests include science, technology and video games.