History of HTML and W3C Oraganization Details

 Version History of HTML:
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 -> Html 1.0 ------------------------ 1991
->  Html 2.0 ------------------------ 1994
->  Html 3.0 ------------------------- 1997
->  Html 4.0 ------------------------- 1998
->  Html 5.0 ------------------------- 2008 to 2014

 What is W3c and Whatwg?
-> w3c stands for world wide web consortium.
-> w3c is the main international standards organisation for the world wide web(www).
-> all the client side Technologies (eg Html,Css,Js) are maintained by w3c
-> director of w3c is "Timothy John Bernes-lee" (TIMBL) ,Html also invented by Timbl.
-> This group is formed by group of software companies like  IBM,MicroSoft,Apple .
->w3c was formed in 1990's.

WHATWG:
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-> new features of html5 was suggested by Whatwg.
-> whatwg stands for Web Hyper Text Application Technology Working Group.
-> whatwg was formed in 2004 by Google,Apple,Mozilla,Opera,Adobe etc..

 Developing Web Pages Using HTML:
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-> we can develop the static web pages using html.
-> a web page that is created using html is also called as html Document.
-> Every html document is created with help of  following items
       1.Tags
       2.Attributes
 Tags:
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 -> all the tags are divided into two Categories
       1) Paired Tags
       2) Single Tags
1.Paired Tags:
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-> paired tags should contains open and closing tags 
   eg:    <h1>Heading</h1>
           <p> Paragraph</p>
-> most of the tags in Html are paired tags.
-> paired tags are also called as content tags.

Note:
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if you are not close the tags properly Browser will generated unExpected Results. 

2.Single Tags:
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-> single tags contain only open tag .
-> we can provide required details for single tag using Attributes
   eg: <br/>
        <input/>
       <img/>

2.Attributes:
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 -> attributes are used to provide required details to tag so that we can use as per purpose.
     eg: href,src
-> few attributes are optinal attributes .
    eg: bgcolor,align
-> all the attributes in Html are divided into two categories
     1) Tag Specific Attributes
     2) Global Attributes
-> tag specific attribute are applicable to only for specific tags.
    eg:
          <img src="image1.jpg"/>
          <a href="Demo.html">Next</a>
->Global attributes are Applicable to all Html tags.
  eg: id,name,style,title,class