This photograph shows the front of the papyrus containing the fragment of Euclid. Only a few faded lines of text are preserved, but it most likely deals with official or business affairs. Scholars hypothesize that a teacher later took this document — apparently not important anymore — and copied Euclid’s text on the back to use as part of a lesson plan.
Euclid, Elements I, Definitions 1-10
Letter from Apollinarius to his Mother, Taesis