Zea, commonly known as corn, is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. It is a tall plant that produces large ears filled with kernels, which are the edible seeds. Corn is a staple food in many cultures and is used in various forms, including cornmeal, corn syrup, and popcorn. Corn is not only important for human consumption but also serves as a key livestock feed and a source of biofuel. It is grown in many countries, with the United States being the largest producer. Corn plays a significant role in global agriculture and economy.