In the middle ages, as English began to evolve into its modern form, the curator reappears as the spiritual caretaker of the Christian church in England. Because I am a nerd, here’s one of the two attestations from Piers Plowman that the OED uses to date the term’s entry into English:
For persones and parish prestes that shulde the peple shryue, Ben curatoures called to knowe and to hele, Alle that ben her parisshiens. (Our parish priests, whose duty it is to hear the people’s confessions, are called ‘curates’ because their business is to know their parishioners, and to cure them.)[ref]Schmidt, A. V. C. Piers Plowman: A New Translation of the B-text (Oxford World’s Classics) p. 251[/ref]
As David Levi Strauss puts it, “one could say that the split within curating—between the management and control of public works (law) and the cure of souls (faith)—was there from the beginning. Curators have always been a curious mixture of bureaucrat and priest.” It’s worth adding that while parish priests were caring for their parishioners’ souls, the inhabitants of medieval monasteries and convents were doing an impressive job of creating, collecting, and keeping safe the written records of civilization. Read more ⇒