Lenguajes de marcas By jamumo Jan 1, 1969 GML By IBM Generalized Markup Lenguage Jan 1, 1978 TeX By Donald E. Knuth TeX Markup Jan 1, 1982 POSTSCRIPT By: AdobeSystem Page Description Lenguage Jan 1, 1985 LaTeX By: Latie Lamport Lampert TeX Markup Jan 1, 1986 SGML By: ISO Standard Generalized Markup Lenguage Jan 1, 1993 HTML By:W3C & WHATWG HyperText Markup Language Jan 1, 1993 PDF By: AdobeSystems Portable Document Format Jan 1, 1996 XML By: W3C eXtensible Markup Lenguage Jan 1, 1996 CSS By: W3C Cascading style sheets Jan 1, 2000 XHTML By: W3C [eXtensible Hyper-Text Markup Lenguage (https://es.wikipedia.org/wiki/XHTML)