Conversation so far:
who developed the world wide web and why
Tim Berners-Lee invented the World Wide Web in 1989. The Web was originally conceived and developed to meet the demand for automated information-sharing between scientists in academia.
how is the world wide web different from the internet
The internet is a huge network of computers all connected together. The world wide web is a collection of webpages found on this network of computers.

Question: when was the former developed
Self-contained rewrite: when was the internet developed