The scientific study of papyrus, commonly narrowed to its use as a writing material and what is written thereon. There are NT references in 2 John 12; 3 John 13. Papyrology is a by-product of the archaeological recovery of antiquity. Ancient Upper Egypt has been the major source, since the dry desert climate provided the chief preservative factor in the survival of this material. Oddly, however, the initial finds were made at Herculaneum in 1752, when the charred remains of a library, sealed by the volcanic eruption of Vesuvius in a.d. 79, were uncovered. Beginning in 1815, bundles of papyri unearthed at Memphis and Thebes were acquired by museums in London, Paris, Turin, Vienna, and Leyden.