Italian Egyptians which was to be inaugurated in 1871 with the "Aida" by the Italian composer Giuseppe Verdi. The Khedivial Opera House or "Cairo Royal Opera House" was the original Opera House in Cairo. It was inaugurated on November 1869 and burned down on October 1971. The opera house was built on the orders of the Khedive Ismail to celebrate the opening of the Suez Canal. The Italian Egyptian architects Pietro Avoscani and Mario Rossi designed the building. Pietro Avoscani, before his 1891 death in Alexandria, created even the famous "Corniche" of Alexandria. The fondness of Egyptian monarchs towards Italy appeared in
Suez Canal increase revenues by interpreting the kind of net ton referred to in the second concession ("tonneau de capacité") as meaning a ship's cargo capacity and not only the theoretical net tonnage of the "Moorsom System" introduced in Britain by the Merchant Shipping Act in 1854. The ensuing commercial and diplomatic activities resulted in the International Commission of Constantinople establishing a specific kind of net tonnage and settling the question of tariffs in its protocol of 18 December 1873. This was the origin of the Suez Canal Net Tonnage and the Suez Canal Special Tonnage Certificate, both of which are still