Picture a burrito. Its delicious interior, filled with pinto beans, beef, lettuce, tomatoes, chili peppers, avocado, cheese, corn, and rice, is wrapped up in an oversized tortilla made of wheat flour. This filling and easily portable meal can be considered the quintessential dish of the Columbian exchange, the transfer of biota between the Old and New Worlds that began in 1492 and continues to the present day. The beans, tomatoes, peppers, avocado, and corn all hail from the Americas; the beef, cheese, and lettuce have their provenance in Europe; and rice culture was brought by African slaves, themselves imported against their will. The flour tortilla imitates the smaller maize tortillas of Mesoamerica, but has more tensilary strength and reflects the traditional European preference for wheat as a staple grain. Even the name burrito (little donkey) comes from an animal imported to the New World by Europeans during the colonial era. The Columbian Exchange has had a large impact on the plants, animals, foods, and human populations of every corner of the earth. After the New World was "discovered" in 1492, all manners of life were sent, intentionally and unintentionally, both directions across the Atlantic and on to the rest of the world. Although the cultural developments of the colonial era were significant, the biological ones were staggering. According to historian Alfred W. Crosby, European colonization of the New World depended not on their guns, steel, and often brutal policies, but on the forms of life that they brought with them. The most critical of these were microscopic germs that devastated the indigenous population; smallpox, which halved populations throughout the New World, is the most well known of these "virgin soil" epidemics (Crosby 1972). The first outbreak of smallpox in Mesoamerica (from 1520-1521) killed one-third to one-half of the indigenous population. Yet, as Suzanne Austin Alchon argues, the Indians were decimated because the smallpox epidemic was followed in quick succession by measles, bubonic plague, influenza, and typhus, leaving no time for the population to recover before being stricken once more. Furthermore, the wars, enslavement, and demoralization that often characterized New World colonialism did much to exacerbate the massive population decreases suffered by Native Americans (Alchon 2003). Larger organisms, like people, plants, and animals also made their way across the Atlantic. As seen in the source "The Arrival of the Spaniards in Mexico," wheat, pigs, horses, cattle, and ship rats were all imported to the New World, where they thrived and changed the Americas forever. Indeed, much of the New World today might be unrecognizable to someone who lived here in 1491. Landscapes like the one depicted in the source "Native Americans Harvesting Timber" were shaped by European animals (including humans), cultural influence, and economic demands. Maize, turkeys, potatoes, tomatoes, various beans, squash, and peppers all traveled East to Europe and Africa, as well as the Middle East and Asia. American diseases, most notably syphilis, spread even faster than foodstuffs and were rampant throughout the Old World before the end of the fifteenth century. Although the exchange of New and Old World germs had the most immediate impact, the transfer of crops and livestock proved more important in the long term because, since the early sixteenth century, the human population in general has skyrocketed. Crosby attributed this phenomenon largely to the fact that the world's food supply has increased and improved since 1492. Crops native to America have forestalled famines and added much needed nutrients and variety to cuisines throughout the world (Crosby 1972). Whether such large-scale human success has counterbalanced the immense human and cultural toll wrought by the encounter between Europeans and Native Americans can be debated. Chew on that next time you eat a burrito. Questions for further exploration: 1. Although New World plants, animals, and diseases did make an impact in Europe, Asia, and Africa, the changes wrought in the Americas were far more drastic. What factors (plant, animal, and/or human) affected the change most and why? 2. Consider the sources on diseases resulting from the Columbian exchange, that in which a Native American artist depicts the newly introduced disease of smallpox and those in which European artists illustrate the new disease of syphilis. How did each civilization (European and American) attempt to deal with these novel crises, in terms of treating the new disease and explaining its cause? 3. Several new animals came to the Americas in the sixteenth century; some impacted social and political life, like horses, while others had a larger impact on the environment. What are some of the lasting environmental effects of introducing animals like pigs, cattle, and rats? 4. The source "Potato Famine" relates how a staple crop grown in Europe, though native to the Americas, can lead to massive demographic shifts. Consider some other large-scale migrations across the Atlantic since 1492. To what extent were these population shifts (themselves a legacy of the Columbian exchange) the result of developments that the initial exchange unleased? 5. American plants have fascinated Europeans since 1492 as sources of food (maize and potatoes), medicine (cinchona and guaiacum), and profit (timber, tobacco, and cacao). Considering the American plants in the sources as well as others, how did European attitudes to American flora change from the fifteenth to the nineteenth centuries? (Look to other topics to help elucidate shifts in perspective, including "Early Colonial Science," "Colonial Enlightenment," "Humboldt and Latin America," "Scientific Expeditions," and "Botany"). Further reading: Alchon, Suzanne Austin. A Pest in the Land: New World Epidemics in Global Perspective. Albuquerque: University of New Mexico Press, 2003. Cook, Noble David. Born to Die: Disease and New World Conquest, 1492-1650. New York: Cambridge University Press, 1998. Crosby, Alfred W., Jr. The Columbian Exchange: Biological and Cultural Consequences of 1492. Wesport, CT: Greenwood Press, 1972. Crosby, Alfred W., Jr., Ecological Imperialism: The Biological Expansion of Europe, 900-1900. New York: Cambridge University Press, 1986. Diamond, Jared. Guns, Germs, and Steel: The Fates of Human Societies. New York: WW Norton & Co, 1999. Quetel, Claude. History of Syphilis. Baltimore: Johns Hopkins University Press, 1992.
 The “Columbian Exchange” in the 15th century
The Columbian exchange is a term coined by Alfred Crosby Jr. in 1972 that is traditionally defined as the transfer of plants, animals, and diseases between the Old World of Europe and Africa and the New World of the Americas. The exchange began in the aftermath of Christopher Columbus' voyages in 1492, later accelerating with the European colonization of the Americas. The Americas had been isolated and cut off from Asia at the end of the last Ice Age approximately 12,000 years ago. Apart from occasional contact with Vikings in eastern Canada 500 years prior to Columbus and Polynesian voyages to the Pacific Ocean coastline of South America around 1200, there was no regular or substantial contact between the world's peoples. By the 1400s, due to rising tension in the Middle East, Europeans began the search for new trade routes led by Prince Henry the Navigator of Portugal (1394-1460), who sailed southward along the west coast of Africa, establishing trading posts. The Portuguese goal was to sail around the southern tip of Africa into the Indian Ocean to directly access the markets of India, China, and Japan. The biological consequences of European exploration & settlement were the most significant impacts of the interaction. An Italian explorer, Christopher Columbus (l. 1451-1506), sailing under the flag of Spain on behalf of Ferdinand II of Aragon and his wife Isabella of Castile, proceeded westward across the Atlantic Ocean in search of direct routes with the same markets in Asia. Columbus and his ships departed Spain on 3 August 1492, making a brief stop in the Canary Islands for provisions and ship repairs, before commencing the 5-week voyage across the Atlantic Ocean. On 12 October, Columbus and his crew made landfall in what is now the Bahamas on an island that the native people called Guanahani, which Columbus renamed San Salvador. Following Columbus' first journey, the Spanish, and later other Europeans, began settlements in which they attempted to recreate their Old World lifestyles and cultures in the Americas. On Columbus' second voyage (1493-1496) domesticated animals – horses, cattle, pigs, chickens – were introduced to the New World for purposes of food and transportation. The subsequent establishment of sugar, rice, and later tobacco and cotton plantations formed a new basis for wealth and trade. The accidental exchange of diseases, especially those carried by the Europeans, spread to the indigenous peoples resulting in the catastrophic deaths of upwards of 90% of all native peoples. In terms of plants, Europe had experienced its own exchange phenomenon 5,500 years earlier. The origins of world agriculture can be traced back to over 12,000 years ago, and farming was firmly established in Europe by 4,000 BCE. The crops brought to the Americas by the Europeans in the late 1400s and early 1500s served to satisfy European demands to recreate their traditional diets but would also disrupt New World agricultural systems. The Spanish initially introduced wheat, olives, and grapevines in order to produce bread, olives, and wine, staples of the Spanish diet and intimately tied to their Catholic rituals. In time, additional cereals and sugar would cross the Atlantic, allowing Europeans to create large agricultural plantations first in the Caribbean and later spreading to Mexico and throughout the rest of the Americas. When the European-based indentured servitude system drawn from the poor, debtors, and criminals failed to provide enough labor, Europeans also enslaved indigenous peoples to work the plantations. This approach failed, too, as the native peoples were not used to the physical demands of large-scale agriculture, ran away from the farms, and were dying in high numbers due to disease exposure. The Europeans then turned their attention towards Africa, resulting in the nearly 400-year phenomenon of the Transatlantic Slave Trade. Africa supplied not only people for work but contributed to the exchange of plants by introducing rice, bananas, plantains, lemons, and black-eyed peas, creating additional sources of food and wealth for colonists and agricultural enterprises. Sign up for our free weekly email newsletter! The Americas also provided Europe, Asia, and Africa with a rich variety of new foodstuffs. Maize, potatoes, beans, tomatoes, peanuts, tobacco, and cacao (chocolate) were among the plants that journeyed eastward across the Atlantic. By the 1530s, tobacco, smoked and inhaled (in the form of snuff) by Native Americans, became a very valuable cash crop, especially in the British Middle Atlantic colonies. Cacao was used by the Olmec, the Maya civilization, and cultivated in Aztec agriculture. The cacao bean was ground into a powder and infused into water creating a very bitter drink, which was disliked by Europeans. Hernan Cortés (1485-1547) brought cacao back to Spain in 1528. The Spanish added sugar and honey to alleviate the bitterness, and in the next hundred years, as it spread throughout Europe, vanilla was added to the mixture producing a new luxury item: chocolate. The potato had the greatest impact on Europe affecting both their diet and lifespan. Potato consists of essential vitamins and nutrients, and it can grow in a wide range of soils capable. Producing high yields, the introduction of potato ended centuries-old cycles of malnourishment and famine, leading to higher population growth in Europe. The discovery and use of quinine by Europeans assisted them in their future colonial adventures in Africa. Native to the Andes mountains region of Ecuador, Bolivia, Peru, and Colombia, the cinchona tree's bark contains an alkaloid that provides effective medicinal treatment against malaria-carrying mosquitos. The discovery by Dr. Thomas Thomson in 1841 and the use of quinine by Europeans helped to cut in half the rate of deaths among European colonizers in the Africa and Pacific Ocean areas of colonization. Cayenne, bell, tabasco, and jalapeño peppers derive from the capsicum pepper found in Bolivia and Brazil. Arriving in Europe after 1493, capsicum spread throughout South and East Asia and was adopted into the traditional cuisines of many European and Asian countries including Hungary (paprika) and Korea (kimchi). Medicinal uses of peppers have proved to be as valuable as their culinary adaptations. Capsicum offers the necessary requirements of vitamins A, B, and C; aids digestion by increasing the amounts of saliva and gastric acids; and is now used for pain relief for cases of arthritis, toothaches, and certain repository illnesses. Tobacco, initially thought to possess medicinal value, was used in the American colonies as a currency for a short while. Tobacco's various smoking products increased significantly during and after World War I but has been shown to be one of the leading causes of death around the world according to the World Health Organization. Thought to increase creativity and reduce hunger, coca is the central ingredient in producing cocaine. Native to the Andes, coca was chewed as part of a ritual in the Inca religion and was adopted as such by Spanish settlers in the New World. Its most famous adaptation was in the creation of Coca-Cola developed in the 1880s by an Atlanta pharmacist as a substitution for alcohol during Prohibition in the United States. Like the soft drink, cocaine has spread around the globe and is one of the most used illegally traded drugs. AnimalsThe Columbian Exchange facilitated the transfer of all of the major domesticated animals from the Old World to the Americas: cattle, horses, sheep, goats, and pigs. The few domesticated species in Pre-Columbian America included the dog and the alpaca. The alpaca was limited in its use as it could not be ridden for transportation and could not carry loads greater than c. 35 kg (75 pounds). However, its fur could be used for making cloth. The largest animal present in the Americas was the bison, but it resisted domestication. The newly introduced animals upset the ecological balance as they ate & destroyed much of the native plants. The Spanish allowed imported domesticated herds to roam freely over the plentiful supply of lands upon which the animals thrived. Additionally, the Americas contained no natural predators to the new animals. However, these newly introduced animals upset the ecological balance as they ate and destroyed much of the native plants. Three domesticated European animals had an immediate effect: cattle, horses, and pigs. By 1565 cattle ranching spread from the Caribbean to Mexico and Florida. Along with cattle, the Spanish brought the metal plow. This instrument, hitched to cattle, permitted the Europeans to expand the size of their agricultural enterprises. More planted land produced more food and consequently increased the population size and extended life expectancy. Furthermore, cattle provided a stable source of protein in the form of meat and dairy products. The horse allowed Europeans to travel greater distances into the interior of the continents. The horse also provided greater speed and height advantages in conflicts with the indigenous peoples and frightened the natives with their appearance. Unable to contain the proliferation of reproduction, the horse spread quickly across the Americas. In time the native peoples would adopt and adapt the horse for travel and warfare. On his second voyage to the Americas in 1493, Columbus brought pigs. Unusually rugged in surviving the ocean voyage, the pig provided the Spanish with an additional source of food. Pigs that escaped into the wild became the ancestors of today's feral pig population and provided an opportunity for hunting by later explorers and colonists. During Hernando de Soto's expedition to La Florida (1539-1542), the pig was introduced to North America. DiseasesThe most devastating component of the Columbian exchange was the transfer of Old World diseases to the Americas. Among the lethal germs were smallpox, measles, mumps, whooping cough, chickenpox, typhus, and influenza. The later Transatlantic Slave Trade introduced hepatitis B, malaria, and yellow fever to this deadly disease cocktail. Native populations were decimated by disease outbreaks which allowed the Spanish, and later Europeans, to conquer the indigenous populations more easily. Columbus' Arrival in America Most infectious diseases in history have been passed from herds of domesticated animals into the human population in a process known as zoonosis. Beginning after 8,000 BCE, these lethal germs entered Europe, first as occasional outbreaks and then becoming endemics, especially as population density increased. As Europeans lived with domesticated animals, including animals residing in houses, for thousands of years, the prolonged and repeated exposure to those germs allowed the Europeans to develop natural immunities. This, however, did not apply to the indigenous populations in the Americas. Having been cut off from exposure to diseases after the last Ice Age, the native peoples lost any acquired immunities. Additionally, the indigenous population of the Americas had fewer domesticated animals from which diseases might emerge and transfer. The first disease that made its appearance in the New World was influenza in 1506 followed by smallpox in 1519. Indigenous peoples would begin to sicken and die in extremely high numbers so much so that by 1650 it has been estimated that 90% of the native populations perished. Disease was the most effective ally of the Spanish conquistadors either preceding or accompanying them in their conquests across the Caribbean and the Americas. Hernan Cortés, in August 1519, successfully conquered the largest city in the Americas, Tenochtitlan, after a 75-day siege in which a few hundred conquistadors defeated a native army numbering in the thousands. Disease, warfare, and starvation weakened the abilities of the Aztecs to resist. Cortés' conquest of the Aztecs ultimately left only about 2 million people of the roughly 11-25 million who existed when the Spanish first arrived in Mexico. Disease also accompanied Francisco Pizzaro when he conquered the Inca in Peru in the early 1530s. Aztec victims of smallpox The disease exchange occurred in both directions. Syphilis crossed the Atlantic Ocean back to Europe by some of Columbus' sailors who had engaged in sexual relations with native women in the Caribbean. A few of those sailors joined the army of Charles VIII of France (r. 1483-1498) when he invaded Italy in 1494-95. The first recorded case of syphilis was reported in Naples in 1495. Recently historians have offered an alternative theory about the introduction of syphilis into Europe. It has been suggested that the disease already existed in Europe prior to the 15th century but was misdiagnosed and thought to be other diseases such as leprosy because the symptoms –pain, rashes, genital ulcers – were similar. Left untreated, syphilis causes death amongst its sufferers. ConsequencesOften referred to as one of the most pivotal events in world history, the Columbian exchange altered life on 3 separate continents. The new plants and animals brought to the Americas and the new plants brought back to Europe transformed farming and human diets. From the 16th century onward, farmers enjoyed a wider variety of plants and animals to choose from to earn a living and expand their prospects for wealth. The new crops on all 3 continents allowed farmers to plant in soils that were previously unusable thus producing higher yields and ending an ongoing history of food insecurity. To meet the growing labor demands, especially on the expanding cash crop plantations, the Europeans turned to Africa. The Transatlantic Slave Trade represented the largest forced migration of people in human history with the transfer of 12-20 million Africans to the Americas between the 16th to 19th centuries. The result of the various exchanges became known as the triangular trade in which the Americas supplied the Old World with raw materials, Europe transformed those raw materials into finished goods which were traded to Africa and the Americas, while Africa supplied slaves to fulfill labor needs in the New World. Transatlantic Triangular Trade Map The transfer of domesticated animals to the New World would, along with the transfer of plants, alter human diets, provide new forms of transportation and inaugurate a new form of warfare between peoples for centuries to come. By the 1560s, the islands in the Caribbean were largely depopulated due to lethal, infectious diseases. Not only did whole civilizations collapse due to sickness, another 20% of native peoples died from famine resulting from the collapse of the local farming sector. Scholarship on the Columbian exchange has expanded to include additional items transferred across the ocean in the centuries after Columbus. Nunn and Qian describe how rubber, found in trees and vines in Central and South America as well as West-Central Africa, was initially used by Africans primarily as an adhesive and Native Americans for boots, tents, and containers. After 1770, the use of rubber increased significantly with the discovery of vulcanization, which created a more stable compound that could be used as electrical insulation along with increased production of tires for bicycles, automobiles, and motorcycles. Rubber production exacted a terrible toll on Central Africa during the period of European colonization. Other aspects of the Columbian exchange include economic, religious, and cultural transformations. The tremendous amounts of silver which flowed from the mines in South America back to Spain altered the European economy. The new wealth led to better lives for many Europeans and an increased population. The increased circulation of silver permitted the Catholic Church to underwrite a response to the challenges posed by the Protestant Reformation as well as spread Catholicism amongst the natives in the Americas. More detailed maps of lands and oceans, greater circulation of news flowing from the New World assisted by the new printing press, more effective navigational devices such as the compass, and astronomical discoveries helped launch a golden age in literature and art. The Columbian exchange, which started out as the introduction of new plants, animals, and diseases into different cultures, ultimately took on greater significance in the profound cultural, colonial, economic, nationalist, and labor consequences.
This article has been reviewed for accuracy, reliability and adherence to academic standards prior to publication.
A term coined by Alfred Crosby Jr. in 1972, the Columbian exchange is understood as the transfer of plants, animals, and diseases between the Old World of Europe and Africa and the New World of the Americas. How did the Columbian exchange change the world?The Columbian exchange, which started out as the introduction of new plants, animals, and diseases into different cultures, altered human diets, provided new forms of transportation, inaugurated a new form of warfare, and had profound cultural, economic, and labor consequences.
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