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During 1980, IBM developed General Markup Language (GML), after which the (ANSI) American National
                  Standard Institute published a working draft of Standard GML or SGML.

                  SGML, which was comparatively a higher level markup language, was adopted by the US Internal Revenue
                  Service and Department of Defense, USA.
                  Simplifying further, HTML was developed in 1990 as a subset of SGML, whose credit goes to Tim Berners
                  Lee, a scientist at CERN (Conseil Européen pour la Recherche Nucléaire, a European practical physics
                  Laboratory in Geneva, Switzerland).






                                    GML                       SGML                              HTML





                  HTML and SGML, though are from the same family but only a few browsers support both. HTML was
                  designed to create web pages that can be viewed on any type of computer architecture or by using any
                  web browser on Internet.
                          Notes

                          World Wide Web Consortium  (W3C): Tim  Berners-Lee proposed for formation of a consortium  to
                          handle the problems of establishing standards for HTML and HTTP (Hyper Text Transfer Protocol), for
                          compliance and approvals. The World Wide Web Consortium (W3C) was founded in 1994 with the goal
                          to develop and set common standards for World Wide Web. It is hosted by Massachusetts Institute
                          of Technology in the USA, INFERIA in France and Keio University. The members of its committee are
                          representatives of World Wide Web companies, including organizations such as Microsoft, Netscape,
                          Sun Microsystems, IBM and Others.


                    EVOLUTION OF HTML

                  HTML was developed in the following stages:

                    Level 0: This was the first stage. At this stage, HTML used structural elements that were supported by
                     all web browsers.
                    Level 1: This was the second stage of development and it included enhanced features such as text
                     highlighting and graphics, this stage of HTML was supported by standard web browsers.

                    Level 2: This was the third stage of development. At this stage, certain interactive features were used
                     such as list boxes, buttons, etc.
                    Level 3: This was the fourth stage of development and it included attractive features like sound, video,
                     frames, etc. This stage also supported mathematical equations and formulae.

                    Level 4: This is the present level of HTML which includes many advanced features and is an enhancement
                     over level 3.

                    FEATURES OF HTML
                  HTML has following features:

                    HTML is neither a word processing tool, nor a programming language, rather it is a markup language
                     which differs completely from the programming languages.


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