The Land of Zanj included the coastal regions of the modern colonies of Kenya and Tanganyika. Here, writes C.R. Boxer, the Portuguese, first among Europeans, came into contact with the Arab-African civilization that flourished on the edges of the Indian Ocean.
Portugal's colonial empire was, at the C.R. Boxer wrote this article in 1956, the oldest in the world, with Mozambique as its most prosperous possession.