Which one of the crops was not known to your ancestors until about 5 centuries ago?

One crop that was not known to ancestors in Europe and Asia until about five centuries ago is the potato. Native to the Andean region of South America, the potato was introduced to Europe in the late 15th and early 16th centuries following the Columbian Exchange. Its arrival transformed diets and agricultural practices, leading to significant social and economic changes in many parts of the world.