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 the middle of the canal at the Bitter Lakes flows north in winter and south in summer. The current south of the Bitter Lakes is tidal, varying with the tide at Suez. The Bitter Lakes, which were hypersaline natural lakes, blocked the migration of Red Sea species into the Mediterranean for many decades, but as the salinity of the lakes gradually equalised with that of the Red Sea the barrier to migration was removed, and plants and animals from the Red Sea have begun to colonise the eastern Mediterranean. The Red Sea is generally saltier and more nutrient-poor than the