IT IS more than a century since cartographers drew east Africa’s coastal strip as a single territory. A map from 1876 shows “Zanguebar” stretching from what is now southern Somalia to northern Mozambique. In the colonial carve-up that followed, lines were drawn between the port cities of Mombasa and Dar es Salaam and the island of Zanzibar. The Swahili coast, named after a language created by the cohabitation of inland Bantu tribes and Arab traders and slavers, was at various times divided between four colonial countries: Britain, Germany, Italy and Portugal. Their vast possessions in the hinterland eventually became Kenya, Tanzania, Somalia and Mozambique. Yet in terms of culture, religion and geography the coastal strip, especially its swathe in the middle, has retained a distinct identity.

To that now add rising discontent. Inequality, land grabs and corruption have soured many coastal communities in recent years. In radical Islam some now find an outlet for their anger. A spate of apparently unrelated church burnings, riots, disappearances and assassinations has swept the coast. Secessionist sentiment is rising.

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