The site provided an explanation of what the World Wide Web was, and how people could use a browser and set up a web server, as well as how to get started with your own website. On 6 August 1991, Berners-Lee first posted, on Usenet, a public invitation for collaboration with the WorldWideWeb project. In a list of 80 cultural moments that shaped the world, chosen by a panel of 25 eminent scientists, academics, writers and world leaders, the invention of the World Wide Web was ranked number one, with the entry stating, "The fastest growing communications medium of all time, the Internet has changed the shape of modern life forever. We can connect with each other instantly, all over the world." In 1994, Berners-Lee founded the W3C at the Massachusetts Institute of Technology. It comprised various companies that were willing to create standards and recommendations to improve the quality of the Web. Berners-Lee made his idea available freely, with no patent and no royalties due. The World Wide Web Consortium decided that its standards should be based on royalty-free technology, so that they easily could be adopted by anyone. Berners-Lee participated in Curl Corp's attempt to develop and promote the Curl programming language. In 2001, Berners-Lee became a patron of the East Dorset Heritage Trust, having previously lived in Colehill in Wimborne, East Dorset. In December 2004, he accepted a chair in computer science at the School of Electronics and Computer Science, University of Southampton, Hampshire, to work on the Semantic Web. In a Times article in October 2009, Berners-Lee admitted that the initial pair of slashes ("//") in a web address were "unnecessary". He told the newspaper that he easily could have designed web addresses without the slashes. "There you go, it seemed like a good idea at the time," he said in his lighthearted apology. Policy work In June 2009, then-British prime minister Gordon Brown announced that Berners-Lee would work with the UK government to help make data more open and accessible on the Web, building on the work of the Power of Information Task Force. Berners-Lee and Professor Nigel Shadbolt are the two key figures behind data.gov.uk, a UK government project to open up almost all data acquired for official purposes for free reuse. Commenting on the opening up of Ordnance Survey data in April 2010, Berners-Lee said: "The changes signal a wider cultural change in