Tens of millions of people have used it to set up businesses, to learn, and to communicate as a means of communication during a time when humanity is facing a crisis. Do they always have the same question in mind as me, who created www and when was it created? I got the answer from a source that can be taken as one from youtube and another from w3schools

This video summarises in 3 minutes how the Web was invented at CERN by British physicist and IT expert Tim Berners Lee in 1989, and how it grew to become what it is today, thanks to CERN’s decision in 1993 to keep it as an open standard for everyone to use. To celebrate 30 years since Sir Tim Berners-Lee’s proposal and to kick-start a series of celebrations worldwide, CERN will host a 30th Anniversary event in the morning of 12 March 2019 in partnership with the World Wide Web Consortium (W3C) and with the World Wide Web Foundation.

Tim Berners-Lee is the man who invented the world wide web about 30 years ago. But what is his story? How did the invention of the world wide web come about? We’ll tell you how Tim Berners-Lee invented the internet as we know it at CERN about 30 years ago. What do you think about the internet

Below draf about history of HTML I was copy form  w3school  if you want learn more please click to see detail.