Pretty much where it all began

This announcement in 1993 brought Mosaic, the first web browser for general use, into the mainstream, albeit if your mainstream was a place where there were workstations made by DEC, Sun, IBM, or SGI.

Message from discussion NCSA Mosaic for X 0.10 available.

It would be a few months before a version of Mosaic was available for VAX/VMS workstations and a few years before it was available on Windows.
The rest is more than history.