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it all started from there
(fosstodon.org)
This is a most excellent place for technology news and articles.
Technically it's the Internet's conception date, not its birthday.
Gotta correct you there. The internet has its roots in the 1970s Arpanet (and maybe even earlier projects). You're thinking of the World Wide Web (Webpages, HTML, HTTP) that came with Tim-Berners Lee but is built upon the pre-existing internet structures and services.
Its the anniversary of deciding the Internet was not an unwanted child.
The Internet was already a teenager by then. It hooked up with Hypertext and the result was this brat called WWW.