Evolution of the web

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If it comes to pass, Web 3.0 will be the successor to two previous generations of the web.

The first generation, referred to as Web 1.0, was invented in 1989 by Tim Berners-Lee, a British computer scientist who applied the hypertext concepts for linking digital text proposed in 1963 by Ted Nelson, an American information technology pioneer. Besides programming the first browser, Berners-Lee wrote the Hypertext Markup Language (HTML), which tells browsers how to display content, as well as the Hypertext Transfer Protocol (HTTP) specifying how web servers transfer files to browsers. He also started designing software for a "Semantic Web" that would link data across web pages, but hardware constraints prevented its implementation.

The public was not much aware of the web until 1993 with the release of Mosaic, the first popular browser, later renamed Netscape Navigator. Similar user-friendly graphical browsers followed, including Microsoft Internet Explorer and, much later, Apple Safari. The first popular search engines -- familiar names like Yahoo! Search, Lycos and AltaVista -- arrived on the scene, but by 2004 Google had put many of them out of business.

Around the turn of the millennium, experts began promoting the idea of an upgraded web that would be more interactive, calling it Web 2.0. They started referring to the existing web of basic connectivity to mostly static websites as Web 1.0. Berners-Lee fleshed out his Semantic Web concept by co-authoring an article in Scientific American. Publisher Tim O'Reilly helped promote Web 2.0 by starting a conference dedicated to it.

The dream of an interactive web came to fruition several years later with the skyrocketing popularity of social networks like Facebook. The World Wide Web Consortium, the web's standards body, released a Semantic Web standard. Around the same time, two essential Web 3.0 technologies were born: cryptocurrency and blockchain. Prominent journalists and technologists, including Gavin Wood, co-founder of Ethereum, a prominent blockchain platform, began to popularize the terms Web 3.0 and Web 3 to signify a decentralized, semantically aware version of the web.

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