General Theory of Natural Equivalences by Samuel Eilenberg and Saunders MacLane. (1945)
While reading the Stanford Encyclopedia of Philosophy entry on category theory, I was reminded that despite seeing the citation Eilenberg and MacLane, General Theory of Natural Equivalences, 1945 uncounted times, I have never attempted to read the original paper.
Considering I had a graduate seminar on running biblical research back to original sources (as nearly as possible), a severe oversight on my part. An article comes to mind that proposed inserting several glyphs into a particular inscription. Plausible, until you look at the tablet in question and realize perhaps one glyph could be restored, but not two or three.
It has been my experience that was not a unique case nor is it limited to biblical studies.