Diseases were an important part of the Colombian exchange for numerous reasons. Diseases spread to many regions of the world. It affected the Native American population and many others. People today have stronger immune systems due to the spread of diseases, during the Colombian exchange. It has had a huge impact on the world over the centuries. Europeans lived for many years in condensed communities that developed immunities among people, such as smallpox, malaria, and diphtheria. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay When Europeans arrived in the Americas, they brought with them many diseases, which soon began to spread rapidly. The Native American immune system never came into contact with the diseases brought by Europeans, which led to the death of many of these indigenous people. 50% of them were affected and of these 90% died, which led to a decrease in the population in the Americas. The Europeans did not know about the diseases they had brought with them because they were immune to them. This was not an intentional genocide, but was simply the Europeans coming into contact with the natives. In the ancient civilization of Peru, known as the Inca Empire, there was a king called Huayna Capac. The Incas built a strong army around their empire. The empire was so large that it covered Peru, Bolivia, modern Ecuador, and the northern half of what is now Chile. This immense empire stretched 2,000 miles along the western coast of South America with a very large population. The Inca Empire was well known for its powerful army during warfare. Europeans arrived in the New World through the voyage of Christopher Columbus conquering many places. One of their most powerful tools to conquer these places was their diseases. When they arrived in the New World, in the Inca Empire, one of the diseases they spread was smallpox. Smallpox was first found in Mexico, where it spread to the Inca Empire. The diseases at that time were not curable and were a non-preventable disease. Although the Inca Empire was powerful, their immune system was unable to fight this tragic disease. This led to the decline of the Inca empire and the death of the ruler Huayna Capac. The Inca empire no longer had a ruler or successor, which led to a civil war among the Incas. Please note: this is just an example. Get a custom paper from our expert writers now. Get a Custom EssayAfter the civil war, the Inca Empire was divided in two and was unified, which made it easy for the Spanish to conquer it. Smallpox devastated the Incas and their empire. This led to the death of their ruler and the conquest of their empire. The Incas suffered greatly from this disease, smallpox.