The port of Adulis was one of greatest significance in Antiquity. It is best known for its role in Aksumite trade during the fourth to seventh centuries AD.
The port is connected to Aksum in Ethiopia by a tortuous mountain route to Qohaito, thence across the plateau to the city itself.
However it is also a major port of the Periplus of the Erithraean Sea, a sailors' hand-book of the first century AD. Not only did it offer a good harbour on the route to India, but it was a source for luxuries such as ivory, tortoiseshell and rhinoceros horn.