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131harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
132western Africa, history of — Introduction history of the region from the 11th century to the present. A reasonable body of sources for the writing of western African history begins to be available about AD 1000. Three centuries earlier, the Arabs (Arab) had… …
