The document summarizes the Columbian Exchange, which was the widespread transfer of animals, plants, cultures, human populations, communicable diseases, and ideas between the Eastern and Western Hemispheres following Christopher Columbus's arrival in America in 1492. Plants and animals native to the Americas such as maize, potatoes, tomatoes, and rubber trees were introduced to Europe, Africa and Asia, while crops from the Old World like citrus, wheat, coffee and bananas were brought to the New World. The document also discusses the Atlantic slave trade that forcibly transported enslaved Africans to the Americas to work on plantations and in mines between the 16th and 19th centuries.