 In 1956, they were granted a concession to explore Tell Atrib in the suburbs of Benha, but work did not begin until a year later due to the Suez Crisis.In 1959 Professor Michałowski established the Polish Centre of Mediterranean Archaeology of the University of Warsaw in Cairo, which is still operated today under the name Research Center in Cairo.Polish archaeologists facing new archaeological tasks, such as coordination of new research, preparing for publication the results of the excavations, contributing to the international UNESCO campaign to save Nubian archaeological heritage, greatly benefitted from having a permanent location in Egypt

In 1960 Polish archaeologists began excavations in Alexandria.