0
HTML
XHTML
SGML
MathML
XML
GML
are a few Markup Languages to name
The general family is HTML, which stands for Hyper Text Markup Language
but insie this you can have XHTML, SMIL, MathML, etc which is almost the same as HtML but has few more rules or differences
SVG Capital was created in 1996.
SVG Air was created in 1990.
(1) XHTML 1.0 Strict
(2) XHTML 1.0 Transitional
(3) XHTML 1.0 Frameset