High Quality Content by WIKIPEDIA articles! The first web browser was invented in 1990 by Tim Berners-Lee. It was called WorldWideWeb (no spaces) and was later renamed Nexus. In 1993, Marc Andreesen created a browser that was easy to use and install with the release of Mosaic (later Netscape), "the world`s first popular browser", which made the World Wide Web system easy to use and more accessible to the average person. Andreesen`s browser sparked the internet boom of the 1990s. These are the two major milestones in the history of the Web.