History

HyperText Markup Language

• October 1991: HTML Tags — Tim Berners-Lee
• November 1995: HTML 2.0 — IETF
• January 1997: HTML 3.2 — W3C
• December 1997: HTML 4.0 — Strict, Transitional, Frameset
• December 1999: HTML 4.01

eXtensible HyperText Markup Language

• January 2000: XHTML 1.0 — Strict, Transitional, Frameset
• May 2001: XHTML 1.1 — mime-type:application/xml
• Never: XHTML 2.0

Web Hypertext Application Technology Working Group

• June 2004: Opera and Mozilla set up the mailing list
• HTML5 — Web Applications 1.0 & Web Forms 2.0
• October 2006: Reinventing HTML — Tim Berners-Lee
• May 2007: W3C HTML Working Group
• January 2008: HTML 5

Timeline

• October 2009: Last Call Working Draft
• 2012: Candidate Recommendation
• 2022: Proposed Recommendation

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The specification