This outbreak of disease was at its worst between 1347 and 1351.
Historians cannot be sure which disease caused the Black Death. However, most think the disease was the bubonic plague. This is a bacterial infection caused by the Yersinia pestis species of bacteria.
The Black Death may have begun in Central Asia or East Asia. It definitely appeared in Crimea in 1347. It was probably carried by fleas living on black rats. These rats traveled on Genoan ships and brought the plague to port cities around the Mediterranean. Rats may also have traveled along trade routes like the Silk Road, bringing infected fleas to European cities. When these fleas bit humans, they infected them with the plague by injecting a little bit of Y. pestis bacteria into the wound. Symptoms would start three to seven days later.
Impact[change | change source]
The disease killed around a third of Europe's population. Some areas were less affected than others. At least 75–200 million people across Eurasia died in the Black Death pandemic.
Until the 1700s, the plague seems to have reappeared in Europe at least once every generation. Some of these smaller plagues were more intense than others, and caused more deaths. Later outbreaks include the Italian Plague of 1629–1631, the Great Plague of London (1665–1666), the Great Plague of Vienna (1679), the Great Plague of Marseille in 1720–1722, and the 1771 plague in Moscow. The most virulent form of the plague seems to have disappeared from Europe in the 18th century.
The Black Death had a very big effect on Europe's population. It changed Europe's social structure. It was a serious blow to the Roman Catholic Church and resulted in widespread persecution of minorities such as Jews, Muslims, foreigners, beggars and lepers. The uncertainty of daily survival influenced people to live for the moment, as illustrated by Giovanni Boccaccio in The Decameron (1353).
At the time, fourteenth-century European writers called the pandemic the "Great Mortality". After later outbreaks, it got called the "Black Death".
Media[change | change source]
The Black Death appears in some modern literature and media, used as a subject or a setting. For example, Edgar Allan Poe's short story The Masque of the Red Death (1842) is set in an unnamed country during a fictional plague that shares many things in common with the Black Death.
Medical aspects[change | change source]
In humans, the bubonic plague causes fevers, severe flu symptoms, and buboes. Buboes are large swellings filled with pus. They usually appear in the groin, under the arms, on the thighs, and behind the ears. Buboes are a black and purple colour; this may be how 'The Black Death' got its name. The disease was painful, and many victims died horrible deaths.
The medical knowledge of the time was based on Hippocrates' theory of humorism. This theory said the body consists of different fluids. If they are in harmony, a person is healthy. If they are not, disease results. Very often, diseases were also seen as a punishment from God.
The theory of humorism does not explain why disease spreads from one person to another. Most people thought that infection was caused by miasma ("bad air"). The bad air could come from within the earth, and thereby cause the disease. Remedies against the disease included opening only north-facing windows; not sleeping during the day; and not working too hard.
In 1348, Philip VI of France asked the Faculty of Medicine of the University of Paris about the cause of the Black Death. The Faculty concluded that the pandemic was caused by a bad conjunction of Jupiter, Saturn and Mars on 20 March, 1345. Since this answer was based on science (astrology), many people believed it, and it was translated into many languages.
Because nobody understood what caused the plague, doctors had no effective treatments. Often, doctors simply told their patients to go to Confession, so that their sins would be forgiven if they died. Eventually, the pandemic caused doctors to change their ideas about how the human body worked. Just 200 years later, Girolamo Fracastoro discovered that diseases spread through infection.
Twelve plague outbreaks in Australia between 1900 and 1925 caused over 1,000 deaths, mainly in Sydney. This led to a Public Health Department there which did some leading-edge research. They found plague transmission from rat fleas to humans by the bacillus Yersinia pestis.
Germ warfare[change | change source]
On the Crimean Peninsula, Mongol forces were fighting for control of Caffa, a Black Sea port (now Feodosiya, Ukraine). At that time, Caffa was a Genoese trade centre. Mongol forces began a siege. During the siege, they are reported to have catapulted plague-infested bodies over the walls into the city. Genoans fled the siege, using ships. Some historians believe the Caffa refugees brought the plague back to Italy with them, starting the Black Death pandemic.
Related pages[change | change source]
References[change | change source]
- "Economic life after Covid-19: Lessons from the Black Death". The Economic Times. 29 March 2020. Archived from the original on 21 June 2020. Retrieved 4 April 2020.
- "Plague". World Health Organization. October 2017. Archived from the original on 24 April 2015. Retrieved 8 November 2017.
- Sources for origins
- Hollingsworth, Julia. "Black Death in China: A history of plagues, from ancient times to now". CNN. Archived from the original on 6 March 2020. Retrieved 24 March 2020.
- Benedictow 2004, pp. 50–51 harvnb error: no target: CITEREFBenedictow2004 (help)
- Bramanti et al. 2016, pp. 1–26 harvnb error: no target: CITEREFBramantiStensethWalløeLei2016 (help)
- Wade, Nicholas (2010-10-31). "Europe's Plagues Came From China, Study Finds". The New York Times. ISSN 0362-4331. Archived from the original on 4 November 2010. Retrieved 2020-03-01.
- "Black Death | Causes, Facts, and Consequences". Encyclopædia Britannica. Archived from the original on 9 July 2019. Retrieved 2020-03-01.
- Sussman 2011 harvnb error: no target: CITEREFSussman2011 (help)
- Bubonic Plague comes to Sydney in 1900 Archived 10 February 2012 at the Wayback Machine, University of Sydney, Sydney Medical School
- "Biological Weapons in History". www.britannica.com. Britannica. Retrieved January 7, 2022.
Other websites[change | change source]
Primary sources online[change | change source]
- Agnolo di Tura's account
- Gabriele de' Mussi's account Archived 2006-10-29 at the Wayback Machine
- Marchionne di Coppo di Stefano Buonaiuti's account Archived 2007-02-03 at the Wayback Machine
- A Petrarch account Archived 2007-02-04 at the Wayback Machine and More quotes from Petrarch Archived 2007-02-04 at the Wayback Machine
Secondary sources online[change | change source]
- The History Guide "Satan Triumphant: The Black Death"
- Symptoms, causes, pictures of bubonic plague
- Overview of the black death
- BBC news story on controversy over Black Death origins
- Examination of "Ring around the Rosy"'s relationship to the plague
- Black Death Overview from BBC history
- Plague and Public Health in Renaissance Europe. Primary source documents and analyisis
- Secrets of the Dead . Mystery of the Black Death Archived 2014-03-25 at the Wayback Machine PBS
- Pandemics in Eastern Europe Archived 2011-06-05 at the Wayback Machine
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