Théodule Devéria help Mariette read inscriptions in Cairo and its surroundings. He tried to accurately document the archaeological sites using drawings, stampings and photographs. His calotype pictures from this trip are often poor in quality, showing a lack of technical skills. In 1860 he was appointed preserving assistant at the Louvre's Department of Egyptology. He revisited Egypt in 1861–62, traveling up the Nile to Philae at the First Cataract, and into Nubia to the Abu Simbel temples. After returning he helped Mariette prepare descriptions of the excavation in Egypt in 1850–54 for publication. In November 1864 Devéria met the future oriental scholar
Research Centre in Cairo, Polish Centre of Mediterranean Archaeology University of Warsaw about the Polish discoveries at Faras. Even as the first season of excavation at Faras was in full swing, Michałowski was approached by the Egyptian authorities to take on the task of completing the restoration of the Upper Terrace of the Temple of Hatshepsut in Luxor. The work in Deir el-Bahari began in 1961. In 1963, Michałowski headed the international committee of experts created by the Egyptian government to rescue the rock temples of Abu Simbel. The Polish Centre in Cairo was named after its founder by the Senate of the University of Warsaw on 21 December 1983. Its establishment