Crater, the ancient city steeped in history, from which the British colonists entered and occulated Aden on the 18th January 1839 due to its location, and from which they set out to all its regions from its historic port located on Holkat Bay and the sea of ​​Sira Island.

Aden soon become an important transit port and coaling station to trade between British India, Far East and Europe. The commercial and strategic importance of Aden increased considerably when the Suez Canal opened in 1869, From then and until the 1960's the port of Aden was to be one of the busiest ship bunkering, duty free shopping and trading ports in the world. 

In 1937, Aden was separated from British Inida to become a Crown colony, a status that it retained until 1963.