History of HTML

year Version Introduction Source: https://en.wikipedia.org/wiki/HTML
1991 The first publicly available description of HTML was a document called "HTML Tags", first mentioned on the Internet by Tim Berners-Lee in late 1991.
1995 HTML 2 (November)
1997 HTML 3.2 (January)
1997 HTML 4.0 (December)
1999 HTML 4.01
2014 HTML 5 Recommendation
2016 HTML 5.1 Recommendation
2017 HTML 5.2 Recommendation

HTML5 Level 1