Today we celebrate Tim Berners-Lee's 1989 invention known as the World Wide Web. It is an interconnection of computer networks comprising the Earth and now even into orbit around it. It is a mechanism for people to share electronically with others.
The WWW wasn't an immediate "world wide" hit with the populace but has supplanted most other media for dominant use.
Though it was not envisioned as a public access mechanism, but one for scientists to share data the rest so we say is history. It is now an essential part of many lives upon the earth including my own. HyperText Transfer Protocol (HTTP) utilizes Hypertext Markup Language to create documents that act the basis for innumerable other features.
Some of us take the markup even farther with scripting such as javascript, Lucee, perl, and other adjuncts which may be installed on the web server.