Capital and largest city and chief port of Yemen; located on the Gulf of Aden; its strategic location have made it a major trading center of southern Arabia since ancient times.
(Arabic ’Adan) Main port and commercial center of Yemen, on a rocky peninsula at the southwest corner of Arabia, commanding the entrance to the Red Sea; The city's economy is based on oil refining, fishing, and shipping. A British territory from 1839, Aden became part of independent South Yemen 1967; it was the capital of South Yemen until 1990.
After annexation by Britain, Aden and its immediately surrounding area (121 sq km/47 sq mi) were developed as a ship-refueling station following the opening of the Suez Canal 1869. It was a colony 1937–63 and then, after a period of transitional violence among rival nationalist groups and British forces, was combined with the former Aden protectorate (290,000 sq km/112,000 sq mi) to create the Southern Yemen People's Republic 1967, which was renamed the People's Democratic Republic of Yemen 1970–90.