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1. The Black Sea was given that name because the lack of oxygen in the water prevents the development of microorganisms, making it appear black. 2. It was called the Black sea because it was a Sea of Death.Sailors of long ago, if caught in a storm, usually died because of the absence of islands at which to harbour, and the ferocity of the storms that hit. 3. The intense fogs which develop over the Black sea absorb the light, making the water appear black. 4.t was called the Black sea because it was a Sea of Death. Sailors of long ago, if caught in a storm, usually died because of the absence of islands at which to harbour, and the ferocity of the storms that hit. 3. The intense fogs which develop over the Black sea absorb the light, making the water appear black. 4.
In November 1347 a Genoese ship returning from the Black Sea called at Naples on its route home. It brought the pestilence or great mortality to Europe. The disease - later called the Black Death (because of the dark patches on the skin caused by subcutaneous bleeding) was probably Bubonic Plague. Bubonic plague is carried by black rats, and spread to humans by the fleas that infest them. Human carriers could themselves pass on the infection through contact or the air.