Saturday, 28 September 2013
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Black Death

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The Black Death was one of the most devastating pandemics in human history, killing an estimated 75 to 200 million people and peaking in Europe in the years 1348–50 CE. Although there were several competing theories as to the etiology of the Black Death, recent analysis of DNA from victims in northern and southern Europe indicates that the pathogen responsible was the Yersinia pestis bacterium, probably causing several forms of plague.
Infection of black death

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In Medieval England, the Black Death was to kill 1.5 million people out of an estimated total of 4 million people between 1348 and 1350. No medical knowledge existed in Medieval England to cope with the disease. After 1350, it was to strike England another six times by the end of the century. Understandably, peasants were terrified at the news that the Black Death might be approaching their village or town.

The Black Death is thought to have started in China or central Asia. It then travelled along the Silk Road and reached the Crimea by 1346. From there, it was most likely carried by Oriental rat fleas living on the black rats that were regular passengers on merchant ships. Spreading throughout the Mediterranean and Europe, the Black Death is estimated to have killed 30–60% of Europe's total population. All in all, the plague reduced the world population from an estimated 450 million down to 350–375 million in the 14th century.

In towns and cities people lived very close together and they knew nothing about contagious diseases. Also the disposal of bodies was very crude and helped to spread the disease still further as those who handled the dead bodies did not protect themselves in any way.

Lack of medical knowledge meant that people tried anything to help them escape the disease. One of the more extreme was the flagellants. These people wanted to show their love of God by whipping themselves, hoping that God would forgive them their sins and that they would be spared the Black Death.


The plague disease, generally thought to be caused by Yersinia pestis, is enzootic (commonly present) in populations of fleas carried by ground rodents, including marmots, in various areas including Central Asia, Kurdistan, Western Asia, Northern India and Uganda. Nestorian graves dating to 1338–9 near Lake Issyk Kul in Kyrgizstan have inscriptions referring to plague and are thought by many epidemiologists to mark the outbreak of the epidemic, from which it could easily have spread to China and India.

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