HTML 1.0 (1989 – 1994):
It was the first version of HTML that supported only text controls and inline images.
It could not allow us to use tables, frames, forms, or to change page background. So all the web page created with this version looked the same.
Since W3C (World Wide Web Consortium) did not exist at that time, HTML 1.0 was supported by Lynx.
HTML 2.0 (1995):
It was considered as the classic version of HTML which supported many browsers.
It also supported forms, text boxes and change of page background.
The only disadvantage was its alignment issue.
HTML 3.2 (1997):
It was the next official version of HTML which support for tables, image, heading and align attributes.
It allowed web pages to include complex mathematical equations.
Essentially all browsers understand HTML 3.2.
however, missing some of the extensions, such as FRAMEs, EMBED and APPLET.
HTML 4.01 (1999):
HTML 4.01 was mainly focused on separating presentation styling information from the actual content by the use of style sheets.
This version added support for style sheets and scripting ability for multimedia elements.
A site with many pages would have meant many changes need to be made before the appearance of the website could be changed.
HTML 5 (2008):
It is the latest version of HTML.
HTML5 is a response to the fact that the HTML and XHTML in common use on the World Wide Web are a mixture of features introduced by various specifications, along with those introduced by software products such as web browsers, those established by common practice, and the many syntax errors in existing web documents.
HTML5 adds many new syntactic features like <video>, <audio> and <canvas> elements, as well as the replacement of generic <object>tags and MathML for mathematical formulas.
Many parts will be familiar, but there are also plenty of new elements, attributes and abilities to get excited about.
HTML5 is designed for the web, both now and in the future. This is the specification that we will be working with for the next decade at least, so the process of its development is relatively slow and considered.