sentences:  The findings at Oxyrhynchus also turned up the oldest and most complete diagrams from Euclid's "Elements".Fragments of Euclid discovered led to a re-evaluation of the accuracy of ancient sources for "The Elements", revealing that the version of Theon of Alexandria has more authority than previously believed, according to Thomas Little Heath.The classical author who has most benefited from the finds at Oxyrhynchus is the Athenian playwright Menander (342–291 BC), whose comedies were very popular in Hellenistic times and whose works are frequently found in papyrus fragments.