Hypertext Markup Language.
Now you know.
When a very clever person invented the World Wide Web he needed a way to create the pages (and the links between them).
HTML is a language to describe text documents and the links between them.
Markup languages add tags to text to structure them. HTML tags identify the parts of the page. For example paragraphs, lists or tables. These tags tell your Web browser what each part is so the browser can handle the text properly.
As you will discover these pages are about XHTML rather than HTML or XML. All three are now accepted ways of creating pages to be added to the WWW. Don't worry about it for now just accept that they work in similar ways.
