Which crop did NOT originate in the Americas?

Oats did not originate in the Americas; they are native to Europe and Asia. This grain has a long history of cultivation primarily in these regions before it was introduced to the Americas. In contrast, tomatoes, potatoes, and corn all have their origins in the Americas.

Tomatoes originated in Mesoamerica, particularly in present-day Mexico, while potatoes were first domesticated in the Andean region of South America. Corn, or maize, has its roots in ancient agricultural practices in both Central and Southern America.

Understanding the origins of these crops is crucial because it highlights the agricultural exchanges that occurred following European contact with the Americas, which significantly impacted global diets and economies.