20 12, 1990
By Christmas 1990, Sir Berners-Lee had defined the Web’s basic concepts, the html, http and URL, and he had written the first browser/editor and server software. info.cern.ch was the address of the world's first web server, running on a NeXT computer at CERN.
CERN. The birth of the World Wide Web. [2] 2019-09-04閲覧.