American foods (such as potatoes, maize or manioc) became staple crops in various parts of Europe, Asia, and Africa while cash crops. (such as cacao or tobacco) were grown primarily on plantations with coerced labor and were exported mostly to Europe and the Middle East in this period. the Americas while other foods.
claims of fact, claims of value, and claims of policy
Each type of claim focuses on a different aspect of a topic. To best participate in an argument, it is beneficial to understand the type of claim that is being argued.
Large areas of Europe were conquered by Muslims. When these areas such as southern Spain were recaptured and placed under Christian rule Muslim customs and architecture remained. Christians were encouraged to go on Crusade to recapture Jerusalem from the Muslims.