A brief but detailed book, on the original universities. In medieval times.
First covering the institutions themselves, then the professors, then the students.
The universities frequently pick arbitrary times as the founding, because in reality they kinda grew. the books and the subjects taught. The laws students forced on professors, such requiring permission for absence and fining any that didn't draw five students to a lecture as if he had been absent. The first colleges were simply ways to house the students. How students wrote begging letters. And also threatened to decamp in order to negotiate prices. (Since the first universities had no buildings, that would be easy.)
Lots of stuff.