Today in history
Tim Berners-Lee and Robert Cailliau produced a formal proposal for the World Wide Web at CERN.
At CERN near Geneva, a memorandum dated 12 November 1990 set out a practical plan for the World Wide Web, developing an idea Berners-Lee had proposed the previous year.
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An idea given formal shape
WorldWideWeb: Proposal for a HyperText Project bears the names of Tim Berners-Lee and Robert Cailliau and the date 12 November 1990. This was a formal proposal for support at CERN, not the Web’s first conception or public unveiling. The date belongs to the document; it does not establish a particular submission ceremony.
Berners-Lee had already written Information Management: A Proposal in March 1989, addressing the difficulty of preserving and retrieving information at CERN. Recirculated in May 1990, that earlier document supplied the intellectual groundwork for November’s joint plan.
Making information navigable
The difficulty was prosaic but consequential: information scattered across incompatible computer systems was awkward to find and liable to become outdated. The proposed solution was a common interface through which readers could follow links between documents, even when those documents lived on different machines.
The Web was not the Internet itself, but an information system using the existing network. The proposal envisaged access to existing material first, followed by facilities for creating links and content. Its staffing requests and provisional timetable were plans, not evidence of approved resources or a settled development schedule.
Distinct contributions
Berners-Lee was a British scientist, born in London and educated in physics at Oxford. Cailliau, a Belgian systems engineer, was the proposal’s co-author and an important organiser and advocate. Their collaboration belonged to CERN’s international setting near Geneva, rather than to a British laboratory.
By Christmas 1990, Berners-Lee had written the first browser/editor and server software, with the server running on a NeXT computer at CERN. Joint authorship of the proposal should not be mistaken for joint authorship of that original implementation. He announced the project to the alt.hypertext Internet newsgroup on 6 August 1991.
The importance of openness
On 30 April 1993, CERN placed its basic Web software in the public domain, allowing reuse and modification. That openness helped the invention spread. The episode represents a distinguished British contribution to computing, realised through international collaboration: an answer to institutional information problems became something far more widely useful.