HTML was first developed by Tim Berners-Lee from the European Organization for Nuclear Research (CERN) in 1990. This markup language or HTML was created by a hardware and software sales company, namely IBM or International Business Machines.
Around the 1980s, IBM created a language that combined tags or symbols with text in a document. The language created by IBM is known as markup language or Generalized markup language (GML).
Then the release of the first version of HTML was written by Tim Berners-Lee in 1993. Since then, there have been many different versions of HTML. The version most widely used throughout the 2000s was HTML 4.01, which became the official standard in December 1999.
Another version, XHTML, is a rewriting of HTML as an XML language. XML is a standard markup language that is used to create other markup languages. Hundreds of XML languages are still in use today, including GML ( Geography Markup Language ), MathML, MusicML, and RSS ( Really Simple Syndication ).
HTML became an official standard in 2000, and was updated in 2002. XHTML is very similar to HTML, but has more stringent rules. Strict rules are required for all XML languages, because without them, interoperability between applications is impossible.
Most pages on the Web today are created using HTML 4.01 or XHTML 1.0. However, in recent years, the W3C has partnered with another organization, WHATWG. They’ve been working on a new version of HTML, namely HTML5. Since 2011, HTML5 is still a draft specification and is not yet an official standard.