 Complete the following phrase:  The colonial period saw alumni participate in operations in Africa and among the fallen in this period remembers the captain Andrea De Benedictis, was killed in 1887 during the battle of Dogali; and on 26 January 1891 a plaque was dedicated to him in the Great Courtyard of the Nunziatella. This period was also of great importance for the history of the school, mainly as a result of the disastrous 