Diseases were an important part of the Colombian exchange for many reasons. Diseases are spreading in many parts of the world. This affected the Native American population and many others. People today have stronger immune systems due to the spread of disease, during the Columbian Exchange. This has had a huge impact on the world over the centuries. Europeans had lived for many years in condensed communities that developed immunities, such as smallpox, malaria, and diphtheria, within the population. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay When Europeans arrived in America, they brought many diseases, which soon began to spread rapidly. The immune system of Native Americans never came into contact with the diseases brought by Europeans, which led to the death of many of these indigenous peoples. Fifty percent of them were affected and of them, ninety percent died, leading to a decline in the population of the Americas. Europeans did not know about the diseases they brought with them because they were immune to them. This was not a deliberate genocide, but simply European 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 powerful army around their empire. The empire was so large that it filled present-day Peru, Bolivia, Ecuador, and the northern half of what is now Chile. This immense empire stretched 2,000 miles along the west coast of South America and had a very large population. The Inca Empire was well known for its powerful army during war. Europeans arrived in the New World through the voyage of Christopher Columbus, conquering many places. One of their most powerful tools for conquering 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 localized to Mexico, where it spread to the Inca Empire. At the time, illnesses were incurable and unavoidable. Even though the Inca Empire was powerful, its immune system was not capable of fighting this tragic disease. This led the Inca Empire to decline and the ruler, Huayna Capac, to death. The Inca Empire no longer had a leader or successor, which led to a civil war between the Incas. Keep in mind: this is just a sample. Get a personalized paper now from our expert writers. Get a Custom Essay After the Civil War, the Incas Empire was divided in two and was not unified, which made it easy for the Spanish to conquer the Empire. 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.