Did the Great Fire of London Kill the Plague?

By Anna Duncan

The Great Fire of London and the bubonic plague are two major historical events that occurred in the city during the 17th century. While these events are distinct, there has been speculation about the connection between them.

Did the Great Fire of London actually kill the plague? Let’s explore this question.

The Bubonic Plague: A Deadly Epidemic

The bubonic plague, also known as the Black Death, was a devastating epidemic that swept through Europe during the 14th century. It caused widespread death and had a significant impact on society. The disease was primarily spread by fleas that infested rats, which were common in urban areas.

It is important to note that the Great Fire of London occurred in 1666, several centuries after the peak of the bubonic plague.

The Great Fire of London: Destruction and Impact

In September 1666, a fire broke out in a bakery on Pudding Lane and quickly spread throughout the city. The fire raged for three days, destroying much of the medieval city including homes, businesses, and public buildings. The fire had a profound impact on London’s infrastructure and society.

However, it is crucial to understand that fires do not have any direct effect on contagious diseases like the bubonic plague.

Contemporary Beliefs and Misconceptions

During the time of the Great Fire of London, people had limited knowledge about infectious diseases and how they spread. There were various misconceptions about how diseases like the plague were transmitted.

  • One common belief was that foul-smelling air or ‘miasma’ carried diseases. This led to efforts to improve sanitation by removing waste from streets and improving sewage systems.
  • Another belief was that the Great Fire of London had a purifying effect on the city. Some believed that the fire cleansed the air and eliminated the disease-causing miasma.

However, these beliefs were not based on scientific evidence. The bubonic plague is caused by the bacterium Yersinia pestis, which is primarily transmitted through fleas and rodents. The fire would not have affected these vectors or eradicated the bacteria itself.

The Decline of the Plague

While the Great Fire of London did not directly kill off the bubonic plague, it did have some indirect effects on its spread. The fire destroyed many of the homes and buildings where rats would have thrived, reducing their population and thus limiting opportunities for fleas to spread.

The decline of the bubonic plague can be attributed to a combination of factors:

  • Social changes: After the fire, London underwent significant urban planning reforms. Streets were widened, buildings were rebuilt with better sanitation in mind, and more attention was given to public health measures. These changes likely played a role in reducing disease transmission.
  • Natural immunity: Over time, survivors of previous outbreaks developed immunity to the disease, leading to a decrease in susceptible individuals.
  • Improved medical knowledge: As scientific understanding improved, measures such as quarantine and isolation were implemented to control infectious diseases more effectively.

In Conclusion

The Great Fire of London did not directly kill off the bubonic plague. While it may have indirectly contributed to its decline by reducing rat populations and prompting urban planning reforms, other factors played a more significant role. The decline of the bubonic plague can be attributed to changes in society, natural immunity, and improved medical practices.

It is crucial to separate historical facts from misconceptions and examine events through a scientific lens.

By understanding the complexities of these historical events, we can gain a clearer perspective on their impact and legacy.