Aida Mary Jane Phillips-Matz argues that the source is actually Temistocle Solera. Isma'il Pasha, Khedive of Egypt, commissioned Verdi to write an opera for performance to celebrate the opening of the Khedivial Opera House, paying him 150,000 francs, but the premiere was delayed because of the Siege of Paris (1870–71), during the Franco-Prussian War, when the scenery and costumes were stuck in the French capital, and Verdi's "Rigoletto" was performed instead. "Aida" eventually premiered in Cairo in late 1871. Contrary to popular belief, the opera was not written to celebrate the opening of the Suez Canal in 1869, for which Verdi
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