"HyperTIES":
The Interactive Encyclopedia System
A browser and Emacs authoring tool from 1983 made by Ben Shneiderman at University of Maryland Human - Computer Interaction Lab
It was made for NeWS (Network extensible Window System) which was a windowing system made by Sun Microsystems
Here's some history behind it :
http://www.cs.umd.edu/hcil/hyperties/
There are so many parallels to HTML. "Hypertext" as an idea certainly came to life here
#RetroComputing