In Ancient Near Eastern studies these are termed “parallels,” not “plagiarism” (which is a thoroughly modern concept). One looks not merely for the correspondences of subject matter, but also for the worldview within which common oral source narratives are framed.
Dear fren: May God lighten your loads and give you peace and encouragement. I know with confidence that Anons will be praying for you.
Trump eats breakfast as death toll …
Plagiarism is not a concept that applied in antiquity. Everyone drew from/copied everyone else. Texts, religious ideas, philosophical notions. Study the ancient world: you’ll find nary a hint of the concept of intellectual property in any modern sense.
Plagiarism as “literary theft” only attains usage in the Early Modern (late Renaissance) period. I tend to agree that the advent of the printing press had an impact on the idea taking root, because that is the point at which the production and dissemination of printed texts first intersects with commerce. It’s more complex than that, as social and historical developments typically are; but it’s important.