The Internet consists of the World Wide Web, or WWW for short.
The Internet may be the greatest thing in modern world. When was the Internet first created?
Tim Berners-Lee invented the World Wide Web in 1989. Before that, the Internet was only used for the military.
Oh wow, I did not know the military was the first to use it. When was the Internet popularized?
Berners-Lee released the first Web browser, Mozilla, in 1991 to the public. It quickly became popular.
As in Mozilla Firefox? What else can Internet do? 
Webpages have embedded hyperlinks that allow users to navigate between different web pages.