IB Extended Essay - How where the Conquistadors able to defeat the Incan and Aztec Empires?

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The Spanish conquistadors between the 16th and 17th centuries are often known to be the dominant world power of that time period. Two of their most significant conquests were that of the Aztec and Incan empires. How though were they able to assert such dominance? They were debatably known as the greatest naval power of the time along with Britain, and also were equipped with the most modern and efficient artillery. They conquered these empires with this military, but not necessarily in the form of force. Of course the Spanish used force to sack the Aztecs and Incas, but more than anything their primary and most destructive force was disease. The use of disease was not deliberate, but how they used disease in their favor stems primarily from the bubonic plague of Europe. The use of disease in conquest was extremely relevant in modern day central Mexico where the Aztec Empire had at a time dominated and modern day Peru where the Incan Empire once thrived.

        In 1347 the Bubonic plague also known as the Black Death hit Europe. It is debatably the most devastating time period in at least the last thousand years of human history if not longer. The pandemic is often believed to have originated from China, and from there spread throughout Europe. The disease reached Spain by rats carrying the disease on merchant ships that traveled across the Mediterranean Sea by 1348. The disease causes swollen lymph nodes which mean “buboes” in Greek, hence the bubonic plague, and if infected one had less than a fifty percent chance to live. The plague was so tragic that it is believed to have wiped out up to possibly even half of Europe’s total population, which was the most developed and populated continent on earth.

        The Black Death changed the world forever, and it took about a century and a half for Spain and the rest of Europe to regain dominance and prosperity. During the time of the disease there was great unrest, people lost their religious beliefs, and there were social and political uprisings.  Life in Europe most certainly declined before it began to rise again. Eventually though the changes of the way of life by people as a whole transformed Europe, and prosperity stemmed from the Black Death, along with social and political changes which all led to one of the most highly developed countries of the time with an economy that was greatly improving.

 The Black Death was an extreme epidemic that spread across Europe, but the Aztecs or Incas of the Americas had never had been exposed to disease which eventually spelled disaster for both empires because they had no immunity or resistance built up. Spain did not come into contact with the Americas until around a century and a half after the outbreak, which is roughly how long it took to recover and prosper after the initial outbreak of the plague. Over this time period with the rise in population Spain along with the rest of Europe’s populations developed strong immune systems, stronger than any than the rest of the world, because of their exposure and survival of disease. This meant that the Spanish could resist disease such as smallpox and even carry disease without getting sick. According to historian Josh Clark, “Having lived alongside livestock for millennia gave much of Europe immunity to the worst ravages of smallpox.”

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The Spanish first made contact with the “New World” in 1492, Christopher Columbus landed in the present day Bahaman Islands, which he called San Salvador. This marked the beginning of the destructive conquest of the Spanish.  Hernan Cortes was a triumphant Spanish conquistador of the early 16th century, and is credited with the conquest of the great Aztec empire. Nearly 30 years after Columbus first landed in the New World in 1492 C.E Hernan Cortes began his conquest of the Aztec empire in 1519 C.E. Fernando Pizarro, another Spanish conquistador is credited with the victory over the Incan Empire, beginning his ...

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