What were 3 negative effects of the Columbian Exchange on indigenous native peoples?

More than 500 years after he "discovered" the New World—kicking off centuries of exploration and colonization of the Americas—Christopher Columbus is honored with a federal holiday on the second Monday of every October. However, as historians have continued to dig into the life of Christopher Columbus, controversy has arisen over continuing to honor the Italian explorer as a hero.

READ MORE: How Christopher Columbus' Legend Grew—And Then Drew Fire

Columbus Saw Indigenous Americans as Obstacles

Spaniards enslaving the Native Americans.

Like many European explorers, Christopher Columbus encountered Indigenous people throughout his voyages. There are three main sources of controversy involving his interactions with the Indigenous people he labeled “Indians”: the use of violence and slavery, the forced conversion of native peoples to Christianity and the introduction of a host of new diseases that would have dramatic long-term effects on native people in the Americas.

In an era in which the international slave trade was starting to grow, Columbus and his men enslaved many native inhabitants of the West Indies and subjected them to extreme violence and brutality. On his famous first voyage in 1492, Columbus landed on an unknown Caribbean island after an arduous three-month journey.

On his first day in the New World, he ordered six of the natives to be seized, writing in his journal that he believed they would be good servants. Throughout his years in the New World, Columbus enacted policies of forced labor in which natives were put to work for the sake of profits. Later, Columbus sent thousands of peaceful Taino “Indians” from the island of Hispaniola to Spain to be sold. Many died en route.

Those left behind were forced to search for gold in mines and work on plantations. Within 60 years after Columbus landed, only a few hundred of what may have been 250,000 Taino were left on their island.

As governor and viceroy of the Indies, Columbus imposed iron discipline on what is now the Caribbean country of Dominican Republic, according to documents discovered by Spanish historians in 2005. In response to native unrest and revolt, Columbus ordered a brutal crackdown in which many natives were killed; in an attempt to deter further rebellion, Columbus ordered their dismembered bodies to be paraded through the streets.

READ MORE: Did Colonists Give Infected Blankets to Native Americans as Biological Warfare?

Disease and the Age of Exploration 

In addition to the controversy over enslavement and violent rule, the “Age of Exploration” that Columbus helped lead had the additional consequence of bringing new diseases to the New World which would, over time, devastate the native populations of many New World islands and communities.

In the broader sense, historians have used the phrase “Columbian exchange” to describe the exchange of plants, animals and goods between the East and West that his voyages sparked. Though the effects were widespread and cannot all be dismissed as negative, critics of Columbus have asserted that the worst aspects of this exchange added up to biological warfare.

Eventually, his methods and actions caught up with Columbus. A number of settlers lobbied against him at the Spanish court, accusing Columbus of mismanagement. In 1500, the king and queen sent in a royal administrator, who detained Columbus and his brothers and had them shipped home. Although Columbus regained his freedom and made a fourth and final voyage to the New World, he had lost his governorship and much of his prestige.

This historical record has cast Columbus' legacy under a cloud of controversy. Protests at Columbus Day parades, efforts to eliminate him from classroom curricula and calls for changing the federal holiday have all followed. Beginning in 1991, dozens of cities and several states began adopting Indigenous Peoples’ Day, a holiday that celebrates the history and contributions of Native Americans—rather than Columbus. 

READ MORE: Should America Take Down Monuments That Romanticize Conquistadors? 

Two hundred million years ago, when dinosaurs still roamed the Earth, all seven continents were united in a single massive supercontinent known as Pangaea. After they slowly broke apart and settled into the positions we know today, each continent developed independently from the others over millennia, including the evolution of different species of plants, animals and bacteria.

By 1492, the year Christopher Columbus first made landfall on an island in the Caribbean, the Americas had been almost completely isolated from the Old World (including Europe, Asia and Africa) for some 12,000 years, ever since the melting of sea ice in the Bering Strait erased the land route between Asia and the West coast of North America. But with Columbus’ arrival—and the waves of European exploration, conquest and settlement that followed, the process of global separation would be firmly reversed, with consequences that still reverberate today.

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What Was the Columbian Exchange?

The landing of Christopher Columbus at San Salvador in the Bahamas, 1492.

The historian Alfred Crosby first used the term “Columbian Exchange” in the 1970s to describe the massive interchange of people, animals, plants and diseases that took place between the Eastern and Western Hemispheres after Columbus’ arrival in the Americas.

On Columbus’ second voyage to the Caribbean in 1493, he brought 17 ships and more than 1,000 men to explore further and expand an earlier settlement on the island of Hispaniola (present-day Haiti and the Dominican Republic). In the holds of their ships were hundreds of domesticated animals including sheep, cows, goats, horses and pigs—none of which could be found in the Americas. (Horses had in fact originated in the Americas and spread to the Old World, but disappeared from their original homeland at some point after the land bridge disappeared, possibly due to disease or the arrival of human populations.)

The Europeans also brought seeds and plant cuttings to grow Old World crops such as wheat, barley, grapes and coffee in the fertile soil they found in the Americas. Staples eaten by indigenous people in America, such as maize (corn), potatoes and beans, as well as flavorful additions like tomatoes, cacao, chili peppers, peanuts, vanilla and pineapple, would soon flourish in Europe and spread throughout the Old World, revolutionizing the traditional diets in many countries.

Disease Spreads Among Indigenous Populations 

Along with the people, plants and animals of the Old World came their diseases. The pigs aboard Columbus’ ships in 1493 immediately spread swine flu, which sickened Columbus and other Europeans and proved deadly to the native Taino population on Hispaniola, who had no prior exposure to the virus. In a retrospective account written in 1542, Spanish historianBartolomé de las Casas reported that “There was so much disease, death and misery, that innumerable fathers, mothers and children died … Of the multitudes on this island [Hispaniola] in the year 1494, by 1506 it was thought there were but one third of them left.”

Smallpox arrived on Hispaniola by 1519 and soon spread to mainland Central America and beyond. Along with measles, influenza, chickenpox, bubonic plague, typhus, scarlet fever, pneumonia and malaria, smallpox spelled disaster for Native Americans, who lacked immunity to such diseases. Although the exact impact of Old World diseases on the Indigenous populations of the Americas is impossible to know, historians have estimated that between 80 and 95 percent of them were decimated within the first 100-150 years after 1492.

The impact of disease on Native Americans, combined with the cultivation of lucrative cash crops such as sugarcane, tobacco and cotton in the Americas for export, would have another devastating consequence. To meet the demand for labor, European settlers would turn to the slave trade, which resulted in the forced migration of some 12.5 million Africans between the 16th and 19th centuries.

Medical treatment of syphilis, 15th century. 

Photo 12/Universal Images Group/Getty Images

When it came to disease, the exchange was rather lopsided—but at least one deadly disease appears to have made the trip from the Americas to Europe. The first known outbreak of venereal syphilis occurred in 1495, among the troops led by France’s King Charles VIII in an invasion of Naples; it soon spread across Europe. Syphilis is now treated effectively with penicillin, but in the late 15th-early 16th centuries, it caused symptoms such as genital ulcers, rashes, tumors, severe pain and dementia, and was often fatal.

According to one theory, the origins of syphilis in Europe can be traced to Columbus and his crew, who were believed to have acquired Treponema pallidum, the bacteria that cause syphilis, from natives of Hispaniola and carried it back to Europe, where some of them later joined Charles’ army. 

A competing theory argues that syphilis existed in the Old World before the late 15th century, but had been lumped in with leprosy or other diseases with similar symptoms. Because syphilis is a sexually transmitted disease, theories involving its origins are always controversial, but more recent evidence—including a genetic link found between syphilis and a tropical disease known as yaws, found in a remote region of Guyana—appears to support the Columbian theory. 

Which were negative effects of the Columbian Exchange for the Native Americans?

How did the Columbian Exchange affect indigenous people?