Which mathematician is credited with inventing the modern World Wide Web in 1989?

Tim Berners-Lee is credited with inventing the modern World Wide Web in 1989.

While working at CERN, the European particle-physics laboratory, Berners-Lee proposed a system for linking and sharing information across different computers. His proposal combined hypertext with the internet, creating a practical way to browse connected documents.

He developed the core technologies of the Web: HTML for document structure, HTTP for communication, and URLs for identifying resources. The first website and web server operated on a NeXT computer at CERN. The Web became publicly available in 1991, after early development and testing within the laboratory.

The Web is not the same thing as the internet. The internet is the global network infrastructure, while the Web is one service that uses it. Berners-Lee later founded the World Wide Web Consortium, or W3C, to help coordinate open Web standards.