Answer:
Christian monasteries .
Step-by-step explanation:
During the Middle Ages and until the creation of the printing press by Johannes Gutemberg in the mid-1400s, books and other literary writings were created by Christian monks, who due to their social position were, in many cases, one of the few members of the society that possessed the ability to read and write.
For this reason, these monks made books by hand, by hand and writing their content in handwriting. This to a large extent was a limit to the development of sciences and ideologies alternative to Christian ideology, since, logically, the monks did not reproduce books that would contradict their theocentric thinking.