Revealing Metallic Ink in Herculaneum Papyri
Revealing metallic ink in Herculaneum papyri Emmanuel Bruna,b, Marine Cottec,d, Jonathan Wrightc, Marie Ruatc, Pieter Tacke, Laszlo Vinczee, Claudio Ferreroc, Daniel Delattref,g, and Vito Mocellah,1 aInserm U1216, F-38000 Grenoble, France; bUniversité Grenoble Alpes, Grenoble Institut des Neurosciences, F-38000 Grenoble, France; cThe European Synchrotron, 38043 Grenoble, Cedex, France; dLaboratoire d’Archéologie Moléculaire et Structurale, CNRS-Université Pierre et Marie Curie, UMR 8220, 75005 Paris, France; eDepartment of Analytical Chemistry, Ghent University, B-9000 Ghent, Belgium; fCNRS-Institut de Recherche et d’Histoire des Textes, 75016 Paris, France; gCentro Internazionale per lo Studio dei Papiri Ercolanesi, 80131 Napoli, Italy; and hConsiglio Nazionale delle Ricerche - Istituto per la Microelettronica e Microsistemi (CNR-IMM), Unità di Napoli, 80131 Napoli, Italy Edited by Richard Janko, University of Michigan, Ann Arbor, MI, and accepted by the Editorial Board February 18, 2016 (received for review October 8, 2015) Writing on paper is essential to civilization, as Pliny the Elder remarks more adherent, ink was required. Thereafter, metallic inks in his Natural History, when he describes the various types of papyri, became the standard for parchments in late antiquity and for the method of manufacturing them, and all that concerns writing most of the Middle Ages (4, 7). materials in the mid-first century AD. For this reason, a rigorous In this work, we study the chemical composition of papyrus scientific study of writing is of fundamental importance for the fragments carbonized by Mount Vesuvius’ eruption in 79 AD historical understanding of ancient societies. We show that metallic and found in the Villa dei Papiri at Herculaneum between 1752 ink was used several centuries earlier than previously thought.
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