The Hypertext Markup Language is the most basic thing you need to learn to create a web page. It is the language which is understood by the web browser to display web content in a specific manner. You need to be fluent in writing HTML code to be able to create basic web pages. It's an extremely simple language to learn and you will surely enjoy working with it. There are plenty of online HTML tutorials and books to help you out. Later you may also dabble into XHTML and XML which are more advanced markup languages.