The Mouseion of Alexandria (the larger institution around the more famous library) was arguably the origin of the research university. Scholars there published scholarship in the humanities and sciences — and it lasted hundreds of years.
Indeed, and I suppose it's worth looking into the universities of the Muslim world. I read that at one point, there were more universities in the Spanish Caliphate than in the rest of Europe.
https://en.wikipedia.org/wiki/Mouseion