Where was corn and wheat the main crops of?

Corn and wheat have been staple crops in various regions around the world. Corn, also known as maize, is predominantly cultivated in the Americas, especially in the United States, Mexico, and Brazil. Wheat, on the other hand, is extensively grown in regions such as Europe, North America, and parts of Asia, including countries like Russia, China, and India. Both crops play crucial roles in global agriculture and food security.