A Revolution Born at CERN
On August 23, 1991, the World Wide Web reached an important milestone: it became accessible beyond its original scientific community. While the date is often celebrated as the Web’s birthday, the story actually began several years earlier.
In 1989, British computer scientist Tim Berners-Lee was working at CERN, the European particle-physics laboratory in Switzerland. Scientists from universities and research centers around the world came to CERN, but they often used different computer systems and had difficulty sharing information. Berners-Lee proposed a system that could connect documents through “hypertext,” allowing people to move easily from one piece of information to another.
The First Web Browser and Website
Berners-Lee developed the basic technologies that made the Web possible, including HTML, URLs and HTTP. By the end of 1990, he had created both the first Web browser and the first Web server. The browser, also called WorldWideWeb, ran on a NeXT computer in his CERN office.
The world’s first website was info.cern.ch, and it was devoted to explaining the new World Wide Web itself. It provided information about the project and instructions for creating Web servers and pages. The original computer even carried a handwritten warning: “This machine is a server. DO NOT POWER IT DOWN!”
The Early Players
Berners-Lee was not working entirely alone. Belgian engineer Robert Cailliau helped develop and promote the project, while Nicola Pellow, during a student placement at CERN, created the simpler Line Mode browser. That browser was important because the original browser worked only on relatively uncommon NeXT computers. The Line Mode browser could run on many more types of computers.
The first users were primarily physicists, researchers and universities. In August 1991, Berners-Lee announced the Web software on the Internet newsgroup alt.hypertext, inviting others to download it and experiment with the new technology. Interest quickly spread beyond CERN and the physics community.
From Scientists to Everyone
One of the first major Web developments outside Europe came in December 1991, when Paul Kunz and Louise Addis helped establish the first Web server in the United States at the Stanford Linear Accelerator Center (SLAC). It was used to provide access to scientific information, including research papers and a directory.
The Web soon attracted programmers and researchers who created new browsers and servers. In 1993, the National Center for Supercomputing Applications at the University of Illinois released Mosaic, a graphical browser that made the Web dramatically easier and more appealing to ordinary computer users.
Happy Birthday to the Web!
The Web was not created as a place for shopping, social media, streaming videos or viral cat pictures. It was designed as a practical way for scientists to share information. Yet that modest idea transformed communication, entertainment, business, education and everyday life.
And there is an important distinction: August 23 marks the Web becoming available to the wider Internet, while CERN officially placed the Web software into the public domain on April 30, 1993. Either way, there is plenty of reason to celebrate the remarkable invention that turned a network of computers into the information-filled world we know today.