A document problem that needed more than email
Particle-physics research at CERN produced information that scientists needed to consult across teams and computer systems. But having documents on computers did not make them easy to find or connect: one machine’s files might be organized differently from another’s, and following a reference could mean tracking down a separate document by hand.
Tim Berners-Lee’s 1989 proposal addressed that coordination problem. The key idea was not simply to send files, but to link documents so readers could move from one piece of information to another, even when the material lived on different computers.
How a link became a path between machines
The Web made those links work through a shared set of conventions. A URL identifies where a resource can be found; HTTP describes how a browser requests it from a server; and HTML provides a format for documents, including links to other resources. Together, these let a reader follow a reference without needing to know how the remote computer stored its files.
Berners-Lee developed the early software to make the system usable: a web server supplied pages, while a browser displayed them and let users follow links. The first website explained the Web project itself. These pieces turned an abstract proposal into a working way to publish and navigate information across networks.
From a research tool to a public medium
The Web is not the same thing as the internet. The internet connects computers; the Web is one system for sharing linked information over those connections. That distinction helped the original idea travel beyond physics: once different computers could serve documents through common standards, the same linking system could organize material on almost any subject.
A problem of keeping research documents connected thus produced a tool whose basic action—clicking a reference and arriving at another document—could work across institutions, machines, and eventually the wider world.
