That idea from Tim Berners-Lee at the CERN lab in Switzerland, outlining a way to easily access files on linked computers, paved the way for a global phenomenon that has touched the lives of billions of people.
He presented the paper on 12 March, 1989, which history has marked as the birthday of the Web. But his idea was so bold, it almost didn't happen.
"There was a tremendous amount of hubris in the project at the beginning," said Marc Weber, creator and curator of the Internet history programme at the Computer History Museum in Silicon Valley.
"Tim Berners-Lee proposed it out of the blue, unrequested," he said. At first, the CERN colleagues completely ignored the proposal.
The US military began studying the idea of connected computer networks in the 1950s, and in 1969 launched Arpanet, the forerunner to the Internet.
But the World Wide Web was just one of several ideas to connect the public. Berners-Lee convinced CERN to adopt his system, demonstrating its usefulness by compiling a lab phone book into an online index.
A key aspect of the design put forward by Berners-Lee was that it worked across various computer operating systems. And it offered the ability to click on links to access files hosted on computers located elsewhere.
The Web was not a winner out of the gate. There were rival online services such as US-based CompuServe and France's Minitel but they involved fees, while Berners-Lee's system was free.
"It started as a real underdog; no one would have predicted the system would have succeeded," Weber said.
The Gopher system owned by the University of Minnesota was beating the Web in the early 1990s.
Weber credited former US vice president Al Gore with helping the Web topple Gopher by getting government agencies in Washington to use the system. The launch of the Whitehouse.gov website was seen as a huge stamp of approval for the Web.
"In 1993, the Web system was released free into the public, while those behind Gopher started charging," said Weber.
Competitors
"Most people don't realise that both the Web and the Internet had competitors," Weber said. "Had they lost the battles, we would still be going online, but it could certainly be different, a lot more top-down control like the walled garden at Facebook."
Under the Berners-Lee model, people were free to publish what they wished on Internet-linked computers.
Internet companies such as Google and Yahoo were built on helping people find pages of interest as the amount of information being hosted on servers exploded.
"At its birth, many of us were guilty of a lack of imagination and just didn't see what the Web would do to the future," Gartner analyst Michael McGuire told AFP.
"The personal computer changed the way we work, but is was the Web that disrupted and changed a lot of industries," McGuire added.
The ability to freely access files on the Web has shaken traditional business models in music, film, news and more.
"The Internet pushes power to the edges," said Jim Dempsey, vice president for public policy at the US-based Centre for Democracy and Technology.
"Anybody can be a listener and anybody can be a publisher on the same network; there has never been anything like it," he said. "A powerful underlying tenet of the Web is that it is egalitarian and open, but those principles are under threat," he added.
It remains to be seen whether the Web is hobbled with regulations and fragmented by governments walling off portions in countries.
"You will never stop the teenage kid from watching little snippets of cute cats," Dempsey said.
"The trouble is you could limit the ability of people to criticise the government or make a tiered Internet in which it is harder for innovators, critics, or human rights activists to reach a global audience," Dempsey said.
In the US, major Internet service providers have won the right to give some online traffic preferential treatment, and governments have shown willingness to invade online privacy or restrain Web freedom.
A big battle for the shape of the Web could be the effect of billions more people getting online with smartphones in parts of the developing world.
"The Web is really only half built; it is not worldwide yet," Weber said.
Source: AFP via I-Net Bridge
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