The HTTP protocol first appeared in yearly 90’s as a solution for document management in CERN, a huge European research center. They needed to maintain and manage a large number of scientific documents, each having many links to other documents (think of Wikipedia).
HTTP is a protocol used by hundreds of millions of people every day for all sorts of activities: getting news, posting news, sharing photos, socializing, educating themselves, educating others, reading, and sending mail, and relaxing. HTTP is the Internet’s glue, which connects distributed web pages and WWW users. This article is quick and dirty explanation of how it actually works.