HTML
Abbreviation · Development
Definitions
HTML, or HyperText Markup Language, is the standard markup language for creating web pages. It defines the structure and content of a web document using a system of nested elements (tags) such as headings, paragraphs, links, images, forms, and tables. Every web page on the internet is built on HTML, making it one of the most fundamental technologies of the web alongside CSS and JavaScript. HTML5, the current major version, introduced semantic elements like header, nav, article, and section that improve accessibility and search engine optimization. It also added native support for audio, video, canvas drawing, and local storage, reducing the need for browser plugins like Flash. Browsers parse HTML into a Document Object Model (DOM) that JavaScript can manipulate to create dynamic, interactive experiences. HTML is not a programming language; it is a declarative markup language that tells the browser what to display rather than how to compute it. Learning HTML is the first step for anyone entering web development.
In plain English: The language that defines the structure of every web page — headings, paragraphs, links, images, and forms are all written in HTML tags that browsers know how to display.
Example: "Is HTML a programming language? No, but it's responsible for more deployed software than most actual programming languages."
Origin Story
The Markup Language That Built the World Wide Web
HTML, HyperText Markup Language, is the standard language for structuring content on the web. It was created by Tim Berners-Lee in late 1991 at CERN, the European particle physics laboratory in Geneva, as part of his broader vision for a World Wide Web that would let physicists share documents across institutions. Berners-Lee drew on SGML (Standard Generalized Markup Language), an existing document markup standard, but radically simplified it to make it accessible to non-programmers. His first HTML specification included just 18 tags, including basics like paragraph, heading, anchor (for hyperlinks), and list elements. The first web page, describing the World Wide Web project itself, went live in August 1991 at info.cern.ch. As the web grew beyond academia, the need for standardization led to the formation of the World Wide Web Consortium (W3C) in 1994, with Berners-Lee at the helm. HTML evolved through versions 2.0 (1995), 3.2 (1997), and 4.01 (1999) before a long gap during which the W3C pursued XHTML, a stricter XML-based variant. The community eventually rallied around HTML5, developed by the WHATWG (Web Hypertext Application Technology Working Group) starting in 2004 and officially recommended by the W3C in 2014, which added semantic elements, audio/video support, and the Canvas API.
Coined by: Tim Berners-Lee
Context: Created at CERN in 1991 as the document format for the World Wide Web.
Fun fact: The first website ever created, info.cern.ch, was restored by CERN in 2013 to its original 1992 state. You can still visit it today and see what the web looked like when HTML had fewer tags than a typical modern div-heavy landing page.