My question isn't one in search of a specific book, but rather a collection thereof. I'm interested in seeing the earliest kinds of "academic" textbooks, and by academic, I mean textbooks that were written by scholars intended to be used by students, with exercises, examples, and details. Of course, these may similarly be used by field experts.
I'm also not looking for a specific discipline, but I suspect that many answers will be early physical science-based, e.g., physics, chemistry, biology, etc.
by JoshuaTheProgrammer