W3C is an acronym for the World Wide Web Consortium, which was founded by Tim Berners-Lee in 1994. Berners-Lee, a computer scentist, had written a program during 1980 called "Enquire-Within-Upon-Everything" that enabled "links between arbitrary nodes". This was a precursor to the Hyper Text Markup Language that was introduced by Tim Berners-Lee in 1990, as well as writing browser and server software during the same year.
The first website went online in 1991 and was hosted at CERN, the European Organization for European research, and over the coming decade the World Wide Web was introduced to the public and has since been growing across the globe.
The W3C states its primary activity as "developing protocols and guidelines". By having an authority such as the W3C, compatibility is ensured between markup languages, hosting technologies and other software such as web browsers.