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Manipulation of human history by microbes
1Pfizer Global Research, Groton, Connecticut.
Abstract:
The convergence of the microbial and human worlds provides us with everyday essentials for the survival of our species, and in turn, this interaction brings painful and tragic consequences from pathogens. Looking back, it can be seen that microbes have also changed our history. Were it not for a pathogen that halted an Assyrian military campaign, we might have no Judaism, Christianity, or Islam. Microbes were there to aid adversaries in bringing about the fall of the great Greek and Roman empires. George Washington's bold orders to inoculate the Colonial Army against smallpox (20 years prior to Jenner's discovery of vaccination) were one of the most significant actions in saving the American Revolution from an early and unsuccessful end. Without the yellow fever virus and its accomplice, Aedes aegypti, those living in what was the Louisiana Territory might now have French as their native language. The potato blight caused by Phytophthora infestans changed the histories of both Ireland and those countries (especially the United States) to which victims of the famine emigrated. At the outbreak of World War I, when England was separated from its European source of acetone (needed for the navy's supply of cordite), British citizens had to make do with less gin, but acetone was available thanks to the growth of Clostridium acetobutylicum in those fermentation vessels.
Insights
Microbes have profoundly shaped human history, influencing major historical events and empires. Understanding microbial impact is crucial for appreciating our past and present.
Area of Science:
- Microbial history
- Human-microbe interactions
- Pathogen impact on civilizations
Background:
- Microbes are essential for human survival but also cause disease.
- Historical events have been significantly altered by microbial activity.
- Pathogens have influenced the rise and fall of empires and military campaigns.
Purpose of the Study:
- To highlight the significant, often overlooked, role of microbes in shaping human history.
- To provide historical examples of microbial influence on societal development and conflict.
- To underscore the dual nature of microbe-human interactions: essential support and destructive potential.
Main Methods:
- Historical analysis of key events influenced by microbial agents.
- Review of scientific literature on pathogen impact and microbial contributions.
- Case studies illustrating microbial influence on military, political, and social outcomes.
Main Results:
- Pathogens influenced the development of major religions and the decline of ancient empires (Greek, Roman).
- Microbial diseases like smallpox and yellow fever impacted crucial historical moments, including the American Revolution and territorial expansion.
- Microbial processes provided essential materials during wartime, such as acetone for World War I.
Conclusions:
- Microbes have been a constant and powerful force throughout human history, impacting civilizations, conflicts, and technological advancements.
- The historical record demonstrates that microbial influence extends beyond disease to include essential biological processes vital for human endeavors.
- Recognizing the deep historical entanglement between microbes and humanity offers critical insights into past events and future challenges.
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