Comment by WillAdams

I lived through the whole thing. Aldus Pagemaker was king for a long while, then Quark came along, then Adobe bought Aldus to get their nascent PageMaker replacement (codenamed K2), dethroning Quark.

There were a lot of other programs along the way, esp. if you consider platforms other than Mac OS (and later Windows).

I still think someone needs to create an office suite which just used .md and .csv and similar plain-text source files for file formats, then all design variations are done via theming --- then, when it's time to produce a document professionally, what is provided is a clear plain text file with sensible markup which is easily converted into pretty much anything.