From the almost impregnable strength of its situation, and the excellence of its harbour, which affords almost the only secure shelter for shipping near the junction of the Red Sea and the Indian Ocean, Aden has been, both in ancient and modern times, a place of note and importance as a central point for the commerce carried on with the East by way of Egypt. It was known to the ancients as the Arabian emporium, and Abulfeda, in the fourteenth century, describes it, in his Geography, as "a city on the sea-shore, within the district of Abiyan; with a safe and capacious port, much frequented by ships from India and China, and by merchants and men of wealth, not only from those countries, but from Abyssinia, the Hedjaz, &c.;" adding, however, "that it is dry and burnt up by the sun, and so totally destitute of pasture and water, that one of the gates is named Bab-el-Sakiyyin, or _Gate of the Water-carriers_, for fresh water must be brought from a distance." In somewhat later times, when the Portuguese began to effect settlements on the coasts of Guzerat and Malabar, and to attack the Mohammedan commerce in the Indian Seas, the port of Aden (when, with the rest of Yemen, then paid a nominal allegiance to the Egyptian monarchy) became the principal rendezvous for the armaments equipped by the Circassian Sultans of Cairo in the Red Sea, in aid of their Moslem brethren, then oppressed by those whom the Sheikh Zein-ed-deen emphatically denounces as "a race of unclean Frank interlopers--may the curse of Allah rest upon them and all infidels!" It was, in consequence, more than once attacked by the famous Alboquerque, (who, in 1513, lost 2000 men before it,) and his successor Lope Soarez, but the Portuguese never succeeded in occupying it; and the Mamluke empire was overthrown, in 1517, by the arms of the Ottoman Sultan, Selim I. The new masters of Egypt, however, speedily adopted the policy of the rulers whom they had supplanted; and not contented with the limited _suzerainté_ over the Arab chiefs of Yemen, exercised by the Circassian monarchs, determined on bringing that country under the direct control of the Porte, as a _point d'appui_ for the operations to be undertaken in the Indian Ocean. With this view, the eunuch, Soliman-Pasha, who was sent in command of a formidible squadron from Suez, in 1538, to attempt the recapture of Dui, [36] in Guzerat, from the Portuguese, received instructions to make himself in the first place master of Aden, to the possession of which the Turks might reasonable lay claim as a dependency of their newly-acquired realm of Egypt; the seizure, however, was effected by means of base treachery. The prince, Sheikh-Amer, of the race of the Beni-Teher, was summoned on board the admiral's galley, and accepted the invitation without suspicion; but he was instantly placed in confinement, and shortly afterwards publicly hanged at the yard-arm; while the Pasha, landing his troops,