Hello friends,

I would like to know that How many version of HTML..?

version of html are
html 2.0
html 3.2
html 4.0
html 4.0.1
html 5 draft version

Since the early days of the web, there have been many versions of HTML
List is mentioned below:
1. HTMl
2. HTML 2.0
3. HTML 3.2
4. HTML 4.01
5. XHTML
6. HTML5

HTML 1.0
HTML 2.0
HTML 3.0
HTML 3.2
HTML 4.01
XHTML 1.0
HTML5

Version   

1. HTML 3.2   
2. HTML 4.01   
3. XHTML   
4. HTML5   
https://goo.gl/SU5WF3

HTML Versions are:
HTML 3.2   
HTML 4.01   
XHTML   
HTML5

HTML versions are:
1. HTML2.0
2. HTML 3.2
3. HTML 4.01
4. HTML 5.

November 24, 1995
HTML 2.0 was published as Supplemental RFCs added capabilities: (Request For Comments)

January 14, 1997
HTML 3.2 was published as a W3C Recommendation. It was the first version developed and standardized exclusively by the W3C, as the IETF had closed its HTML Working Group on September 12, 1996.

December 18, 1997
HTML 4.0 was published as a W3C Recommendation. It offers three variations:
Strict, in which deprecated elements are forbidden
Transitional, in which deprecated elements are allowed
Frameset, in which mostly only frame related elements are allowed.
Initially code-named "Cougar", HTML 4.0 adopted many browser-specific element types and attributes, but at the same time sought to phase out Netscape's visual markup features by marking them as deprecated in favour of style sheets. HTML 4 is an SGML application conforming to ISO 8879 – SGML.

April 24, 1998
HTML 4.0 was reissued with minor edits without incrementing the version number.

December 24, 1999
HTML 4.01 was published as a W3C Recommendation. It offers the same three variations as HTML 4.0 and its last errata were published on May 12, 2001.

May 2000
ISO/IEC 15445:2000 ("ISO HTML", based on HTML 4.01 Strict) was published as an ISO/IEC international standard. In the ISO this standard falls in the domain of theISO/IEC JTC1/SC34 (ISO/IEC Joint Technical Committee 1, Subcommittee 34– Document description and processing languages).
After HTML 4.01, there was no new version of HTML for many years as development of the parallel, XML-based language XHTML occupied the W3C's HTML Working Group through the early and mid-2000s.

October 28, 2014
HTML5 was published as a W3C Recommendation.

November 1, 2016 
HTML 5.1 was published as a W3C Recommendation.


December 14, 2017
HTML 5.2 was published as a W3C Recommendation.

There are many versions of html which is used,
html 1.0
html 2.0
html 3.0
html 3.2
html 4.0
html 5
html 5.1

HTML5 is the latest version of HTML.
HTML has evolved with the passage of time.
Other versions of HTML include
HTML 1.0,
HTML 2.0,
HTML 3.2,
HTML 4.01
and XHTML.