The Columbian Exchange
Plants, animals and diseases crossed the Atlantic.
About this topic
The Columbian Exchange was the transfer of plants, animals, people, diseases and ideas between the Eastern and Western Hemispheres after 1492. It is named for Columbus, and it transformed the world's diets, economies and populations. Crops from the Americas such as potatoes, maize, tomatoes, cacao, tobacco and cassava spread across the world, while wheat, rice, sugarcane, coffee and bananas went west.
Animals also moved: horses, cattle, pigs and sheep came to the Americas, changing Plains peoples' way of life, while turkeys and llamas were less widely transferred. The potato supported population growth in Europe, and Irish dependence on it led to the famine of the 1840s when blight hit. Sugar plantations in the Caribbean and Brazil drove demand for enslaved labour.
The most deadly part was disease. Smallpox, measles and influenza, to which Native Americans had no immunity, killed perhaps 50 to 90 percent of some populations. Example: Europe's population gained from calories while Indigenous societies collapsed. A tip: always consider both benefits and costs. A misconception is that the exchange was one-way; Europe and Asia changed too, and a few diseases like syphilis may have moved east, though scholars debate this.
Key ideas
- Potatoes and maize to Europe
- Horses to the Americas
- Disease devastated native peoples
Quick check
Use cases: where The Columbian Exchange helps
- Homework: review the key idea behind The Columbian Exchange before you start a problem set.
- Exam revision: use the quick check to test whether you can recall The Columbian Exchange without notes.
- Visual learning: play with the interactive lab to see how The Columbian Exchange changes when you adjust its inputs.
- Teaching a friend: explain The Columbian Exchange in your own words, then compare your version with the key ideas.
Studying the past helps explain today’s politics, borders, cultures and institutions.
Frequently asked questions
What is The Columbian Exchange?
Plants, animals and diseases crossed the Atlantic.
What will I learn in The Columbian Exchange?
Potatoes and maize to Europe. Horses to the Americas. Disease devastated native peoples.
Is The Columbian Exchange part of World History?
Yes. It is one of 80 World History topics on LearnViz HighSchoolEdu, with 3 key ideas, a live animation and a quick check.
Does the The Columbian Exchange lab work on a phone or tablet?
Yes. The animation resizes to fit your screen and supports touch, so you can drag, tap and slide with your finger.
How should I study The Columbian Exchange?
Read the summary and key ideas first, play with the interactive lab to see the idea in motion, then answer the quick check. If you get a question wrong, go back to the key idea it tests.
Do I need an account, and is my progress saved?
No account is needed. Marking a topic as learned is saved in your own browser, so it stays on that device and is not sent to a server.