The seaports of the colony are Tanga (pop. about 6000), Bagamoyo 5000 (with surrounding district some 18,000), Dar-es-Salaam 24,000, Kilwa 5000, (these have separate notices), Pangani, Sadani, Lindi and Mikindani.
In the delta of the Rufiji and in the Kilwa district cotton-growing was begun in 1901.
Another proposed line would run from Kilwa to Wiedhafen on Lake Nyasa.
Though the revolt spread over a very large area, the chief centre of disturbance was the region between Nyasa and the coast at Kilwa and Lindi.
Besides a number of settlers a Roman Catholic bishop and a party of four missionaries and nuns were murdered in the Kilwa hinterland, while nearer Nyasa the warlike Wangoni held possession of the country.
In East Africa the small Mahommedan states along the coast - Sofala, Mozambique, Kilwa, Brava, Mombasa, Malindi - either were destroyed or became subjects or allies of Portugal.
Diverse nature - protectorates such as Hormuz and Ternate in the Moluccas, colonies such as Goa and Madeira, captaincies under military rule such as Malacca, tributary states Rich as Kilwa, fortified factories as at Colombo and Cochin.