The catalog of the exhibition held from 8th April to 11th June 2017 in the Oratory of SantaCaterina delle Ruote all'Antella (Florence) shows a selection of about fifty papyrus and other ancient and precious artifacts, which stand as an overview on social, political and religious climate of Egypt in the age of the christian martyr Caterina d'Alessandra (III-IV century A.D.). Texts by Francesco Casini, Luigi Dei, Daniela Manetti, Marco Domenico Viola, Simona Russo, Guido Bastiniani, Alain Delattre, Jean-Luc Fournet.