To what extent has the corpus of primary historical sources been studied, and are there catalogues of unread historical texts waiting to be discovered which may change our views on a given period or place?

by Pbferg

To elaborate here, what makes me curious is I’ve seen photos and videos of large collections of old documents, usually in a European setting, i.e. a medieval monastery, and I wondered if historians have studied every last one or if there is a chance that new discoveries are waiting “right under our noses” so to speak.

Bentresh

There's always more to be said on the topic, but I touched on this in Are there any ancient texts that have yet to be translated due to a lack of translators?